Revert to Stock OS or Fix Bricked RG405M / RG505 / RG405V

[@kjcantgame]

Just pressing and holding power/volume down/back button alone saved my DEVICE! THANK YOU! SUBSCRIBED! 🎉

[@jonathonearl482]

Thank you for this! I needed it to revert my 505 back to it's stock firmware.

[@PhyrexTechs]

Glad I could help!

[@cesarvalencia8024]

Thank you a lot, for the people who have been suffering problems. -1. Change de cable. -2. If there is a problem loading de upgrade tool, reinstall the drivers. -3. Look if it is lock or unlocked.

[@CanManGaming]

I want to wholeheartedly thank you, my 405v suddenly had a pin pattern lock screen which I had never set up and no matter what I did I could not get around it or reset the device, this was the only thing that worked, you're the best!

[@PhyrexTechs]

Glad it worked for you!

[@rafaelcrispim3056]

O meu está com esse mesmo problema sobre a tela de bloqueio de Pin. Como você resolveu?

[@megamega77777]

Thanks a lot for this. You presented it properly, briefly, concisely and to the point. I got an error the first time, the second time it went smoothly. I had the original USB cable.

[@PhyrexTechs]

Thanks! Glad it helped. Yeah, it's not the most consistent thing but it seems to work eventually.

[@MrEman2001]

Thanks very much your a life saver, i upgraded to gamma os and didnt like it, wanted to go back to stock and your video helped me 🙂 you earned a new subscriber :-)

[@PhyrexTechs]

Awesome! Glad to help out! Thanks for subscribing.

[@Reportedin4differentstates]

you absolutely saved me, gammaOS ''broke'' the left joystick of my rg405V, on the stock os it works perfectly!

[@PhyrexTechs]

Glad I could help!

[@squirrelnut]

Appreciate this video. My rg556 got bricked to the point where the bootloader wouldn't load. Between this video and the github page, i was able to recover it.

[@radosawfelich5071]

What buttons did you pressed?

[@squirrelnut]

@@radosawfelich5071 I just held down the home button like the video described.

[@mymangaacademia5873]

hello, I have the same problem as you, on my 556, did you use an additional manipulation to the video? because I only have error messages: Image size is over its partition

[@squirrelnut]

@@mymangaacademia5873 nope. i just used the files from the website.

[@tlamatinonline]

Sir, u are the best. i bricked my unit and this was the very best tutorial to unbrick, i will definitively share a coffee for u on patreon. thanks for sharing knowledge. my respect!!!!

[@PhyrexTechs]

Glad to help!

[@sandplasma]

Great video, thank you! I was getting fed up with GammaOS.

[@PhyrexTechs]

Glad I could help. I'm curious what kind of issues you have with Gamma OS.

[@sandplasma]

All my roma disappeared from Dajisho. I tried working with permissions but the file manager wouldn't let me see them. They were still in the SD. Got that error "you cannot access this folder for your protection"

[@leocromer6026]

Thank you so much man you save me! You explaination are so easy to understand and to follow

[@PhyrexTechs]

Glad I could help!

[@BernieT2012]

Great video and thank you so much. Will the emulators which came loaded with the RG405v be installed along with the stock OS?

[@PhyrexTechs]

Yes, everything should be back to how when you got it.

[@scott811004]

Thanks you so much! I don’t even need to understand English to operate it You are my hero~

[@marcelo_lap]

Works like a charm on RG505...thanks

[@PhyrexTechs]

Good to hear

[@KongregateGuider]

didnt need this video til i watched your last video...

[@PhyrexTechs]

Yeah sometimes the installation can go foul. So I made this to make sure no one gets stuck.

[@marcgarden]

Thank You for this man. At the end of the installation of GammaOs on my RG 505, the screen showed two letters G for GammaOs and then went black and wouldn't turn on anymore. Can I try to install GammaOs again or does my device not accept Gamma? If you can help me with this I would really appreciate it. Thank you very much!!!

[@PhyrexTechs]

I would try again. I have heard of people having issues with the install then trying again and it working.

[@ssaunders1122]

Thanks. Everyone that has videos showing how to go to gamma os just says watch gammas video. Yeah that ain't doing it.

[@francescobiancofiore6104]

Thanks for this guide, just an info i don't understand which is the home/back button on rg505. Did you know whic the right button tu run the process. Thanks a lot

[@PhyrexTechs]

Now I don't have a RG505 but I think it is the button that is next to the power button on the right side of the device.

[@timostephan5235]

Thanks for your tutorial. My connection was stopped during the flashing process and now I am in a boot loop. My PC does not recognize the handheld anymore and is forever stuck in boot loop. 0,5s Anbernic Logo, vibration, goes off and starts 2s again with the anbernic logo. Any idea how to change the boot files onto the emmc drive to fix the boot files? Because the 405M is not able to boot from sd card so right now I have a beautiful but not usable piece of handheld 😢

[@PhyrexTechs]

I was able to get out of that boot loop before, by disconnecting the battery so it powers off. Then don't turn it back on but follow the steps again and when you get to the part where you need to hold down the 2 buttons to get it to connect, do that from it being powered down. It should then connect to the app and start the flashing process.

[@timostephan5235]

Thanks for your tip. I tried all button variations possible and this is the order that actually worked! :) 1.) Start UpgradeDownload-Tool and press Play 2.) Plug in your powered off anbernic handhelt, battery unplugged 3.) Press home/back-Button all the time 4.) Plug in battery pack while still pressing home/back-button 5.) Download should start in the UpgradeDownload tool You maybe have to try this multiple times. I tried this for about 2h yesterday without success. Today I used a different USB cable (not the anbernic stock one) and it worked :) Hopefully this will help someone else too in the future.

[@PhyrexTechs]

Awesome! Glad you got it working and thanks for sharing the process that worked for you.

[@sMeWiito]

Thank you very much. U really saved me

[@PhyrexTechs]

Always glad to help!

[@benjaminrosenberger6096]

A thousand and one thank yous!

[@KirkyBoy]

Thanks mate, i'm back to Stock OS using RG405m. That Gamma OS has issues.

[@AngryMedic68]

Henry! Please help, I have just loaded GammaOs onto my rg405m, but I am unable to connect to wifi. I have not been able to download any of the emulators because of this and am stuck with just the gameboys.

[@PhyrexTechs]

Check that you download and installed the correct version? The one for the RG405m. Most commonly that is the cause. Someone else also reported an issue with this and I'm waiting to hear back from the creator to see if there is a known issue or a fix.

[@emmanuellebigre4095]

Hi. It doesn't seem to be functioning for me. The device keeps loading into Daijisho despite me pressing the button combination Power+Vol down+Home button

[@scyyr]

it would be nice if you can advise what to do if shows "Lock Flag is: Unlock, Skip Verify!!!" i followed your instruction to fix but still the same prompt appear. i just wanna install gamma os and now i think i regret buying and trying to install my device

[@IsaacRodriguez-ft1st]

Qué tal, tuve un problema cuando actualicé a GammaOS, no se instaló correctamente y falló la consola tengo una 405V me aparecía como si se bloqueara un celular, que debo hacer ?

[@kendrickacosta1023]

Would you mind helping. My device wont turn on after finishing flash partition on your tutorial, so I tried to follow the unbricking tool guide the problem is nothing shows up when pressing the 3 buttons . Is there any way to fix this?

[@GrandeVic162]

Thanks for the video it was very helpful. I installed gamma os and didnt like the interface. Everything works but when i try to flash my rg505 it doesn't pick up the download and gamma os goes straight to safe mode instead of downloading the stock OS. Any ideas as to why this is? Thanks again for your videos!

[@ProtocolDan123]

Hey im doing this to my RG405v, and when I do POWER + VOL DOWN + HOME, the device shuts off by the time the UpgradeDownloader starts and then ultimately fails. Not sure what I can do to get around this

[@PhyrexTechs]

Hmm, you may want to try letting go as soon as the screen goes dark to see if the download still starts but does not fail. You may need to try another USB cable to see if that changes anything.

[@EmilianoTavarez97]

Amazing video! I tried using Gamma OS 1.5.1 but I had an issue that drains the battery in 2 hours with no usage…. So I think it might be a version bug… can anyone tell me if you have this problem in older Gamma OS versions? Should I try installing GOS 1.3.3? Or maybe wait until they fix 1.5.X? Maybe stay on StuckOS for a safe console performance?

[@PhyrexTechs]

After installing any version of Gamma the battery reading will be out of sync. What you will want to do is fully charge the device and then use it or let it run until the battery is fully drained. After 1 or 2 times of doing that it should be fairly synced up.

[@jerrybriscoe7720]

Hello. Does this reset it to factory settings and clear data too? Would it be “brand new out of the box” after unbricking it? I got a second hand RG405m with Gamma OS already on it but I’m having trouble trying to add platforms the previous owner didn’t already have installed so I want to start everything from step 1 myself. It was advertised as brand new but they’ve done a couple of things to it I think and now I’m a little lost, so was just wondering if this would make it “like new” again? Thanks.

[@PhyrexTechs]

Yes, after doing this the only thing that would be different than a brand new one is that the boot loader would be unlocked. But if you are wanting to keep Gamma OS you could just try a factory reset first to see if that clears out everything. Settings Tab > System Settings > System > Reset options > Erase all data

[@antoniocardoso8400]

I'm not even able to switch off my RG505 - please help - wanted to try gamma os but still showing "unlock please verify"

[@ProfLaMagnaVideolezioni]

hi, I uninstalled citra on my anbernic to try another version. when I try to launch the roms from the front-end it doesn't load them and gives me a message saying "%1$ not installed" only for 3ds games. Do I have to reset it or can I solve it faster? A thousand thanks

[@PhyrexTechs]

Are you using Daijisho as the front end? If so follow this: kzbin.info/www/bejne/gqvIZmyDgtWWd80. You have to try different ones until you find the one that works for the version you have.

[@Curlyman172000]

Thank you Henry I just going to use the stock os on my 405 device installing gamma os on here was a pain and it would not let me download any apps from the google play store plus the screen was rotated so I don’t know how that happened. I just went back to my stock os and I will enjoy playing games on the stock os. How do I get rid of flag is unlock message when booting up or turning on the device

[@PhyrexTechs]

Just a heads up, normally it's recommended to relock the bootloader right after flashing back to stock. I have seen it cause issues for people when relocking as it might get stuck in a boot loop and you would have to flash the Stock OS again. If you still want to give it a try. The instructions below will lock the bootloader and remove that flag. To relock your bootloader, you will need to enable USB debugging, and issue the following command from a command prompt: adb reboot bootloader. Once you are rebooted into fastboot mode, issue the following command: fastboot flashing lock. Press the back/home button to proceed. Once complete, issue the following command: fastboot reboot.

[@Curlyman172000]

I got it thank you I did all the necessary steps

[@PhyrexTechs]

@@Curlyman172000 Great to hear!

[@annehymanson5485]

Does anyone have any advice on doing this on a Macbook? The unisoc drivers wouldn't install on a VM and I'm totally stuck. Gamma OS isn't working properly with emulators not cover by RetroArch

[@SiggyMX]

Help! after the upgradedownload app starts, it closes suddenly and the console turns off. As i turn it on with power+vol down the abernic screen shows as in the video but boots Gamma again!

[@SiggyMX]

Fixed with: Install ADB and Fastboot v1.0.8 and use UpgradeDownload v R27.24.1301. Thanks @phyrex Techs for the time and patience!

[@leunaum]

A similar thing happened to me, every time I power on the 405 I get the Anbernic logo plus the message on the top screen. It does take a bit long to boot the G logo and get into gammaos. Will this eventually brick the 405?

[@PhyrexTechs]

No, those messages are normal. Takes me a little under a minute from hitting the power button to getting to fully loaded including Daijisho.

[@ThatFuckingBitch]

I just sold my RG405V and while I got rid of every customization this message still bugs me, is there a way to get rid of it? fastboot flashing lock doesnt work, locking the bootloader in developer options is greyed out. Thanks in advance! @@PhyrexTechs

[@PhyrexTechs]

I tested this myself after reverting back to the Stock OS and I was able to get rid of the message by re-locking the boot loader. The way I did it was following the instructions from the Gamma OS Github which it sounds like you already tried. If that is the case them I'm not sure of another way to get rid of it. I'll post the instructions below from the Github in case you want to just double check that you followed all the steps or for others with the same question. To relock your bootloader after reverting back to Stock OS: 1. Enable USB debugging on your device. 2. Issue the following command from a command prompt on your computer: adb reboot bootloader 3. Once your device reboots into fastboot mode, issue the following command: fastboot flashing lock 4. Press the back/home button to proceed. 5. Once complete, issue the following command: fastboot reboot.

[@ThatFuckingBitch]

Nah man thanks I opened it again and followed it without questioning anything or doing stuff how I knew it before and that did it, thank you! Happy new year and have a nice day :) @@PhyrexTechs

[@PhyrexTechs]

Awesome! Glad it worked. Happy New Year to you too!

[@DK4LIFE]

Hey Guy my Problem is have the Gamma os 1.5.1 Install for bether Performance For PS2, GameCube to play Need for Speed ​​but the performance hasn't changed since changes The Gamma operating system has nothing to do with it either All the emulators are gone too If I do a factory reset, the emulators all come back pre-installed And you can press the emulator button to go into emulator mode but not back But you can also swipe from left to right on the display to see the mystery as with the original firmware Which dolphin or athersx2 are currently the best and I can't find dolphin MMJR 3.0 anywhere, thank you

[@Exquisaonyoutube]

But where i can find the Stock OS for the RG405V? Dont find it 😢

[@PhyrexTechs]

Should be the top link in the description : www.patreon.com/posts/anbernic-rg405m-81427437 You have to download all 13 parts and unzip them at the same time like I show in the video.

[@Exquisaonyoutube]

@@PhyrexTechs Stock Rom from RG405M its the them from 405v?

[@PhyrexTechs]

@@Exquisaonyoutube Ah sorry I misread that. I don't know why but I thought you needed the 405M. The link for the 405V is here. drive.google.com/file/d/1idODOwE197mRHwMHDU_Y7bnAiWiackbN/view

[@HeyJair]

Hola, actualicé al FW y no tengo WiFi, pero ahora no puedo volver al FW por defecto, el unbricker no me detecta el RG505 por más que presiono el botón de volumen -, encendido y el home ): alguien me ayuda?

[@ACIDDIZED]

I don't know what I'm doing bad but I have debug usb, I press play and when I put VOL DOWN + HOME + POWER only restart and nothing happens I'm from GAMMA OS and I want to put Stock OS (RG405V)

[@PhyrexTechs]

Some things to check: Make sure you are holding home and not the reset button in the combo button press. Make sure the firmware is fully loaded before hitting the start button on the app and that it shows 405v. You may want to try another USB cable or USB port. Try reinstalling Unisoc drivers and rebooting the computer.

[@ACIDDIZED]

@@PhyrexTechs My bad, wasnt right cable

[@XxZeroMistxX]

Question I got my RG 405M a week ago and meessed around with it watch a video on KZbin. Got everything to work except cps 1,2,3 if i factory rest it will it be like if it came out of box? So i can get those games ti get working again. I did the retro arch and got all thr arcade cores and it still don't read those games. I don't have a laptop so I'm wondering if factory resetting will do the trick. I don't want to buy another one just to get those games working.

[@PhyrexTechs]

Are you running the Stock OS or Gamma OS? If you are still running the stock OS you should be able to run the Factory Reset and get back to what it was out of the box.

[@SuperFelipeChannel]

Does anyone know the method to lock the bootloader again and delete the message that appears at startup?

[@PhyrexTechs]

To relock your bootloader, you will need to enable USB debugging if it's not already on and connect you device to your computer by USB. Then issue the following command from a command prompt: adb reboot bootloader Once you are rebooted into fastboot mode, issue the following command: fastboot flashing lock Press the back/home button to proceed. Once complete, issue the following command: fastboot reboot

[@alkonte1903]

Hello, I'm trying to uninstall gammaos but when I go to execute the last step in the progress bar I get a message that says "Failed [PS2262] user cancer. I've looked and I can't find any information about it. I would appreciate your help, thank you.

[@PhyrexTechs]

The only thing I have found to fix that issue is to try another USB cable or a different computer or trying to reinstall the unisoc drivers.

[@alkonte1903]

@@PhyrexTechs Thanks for now I have tried with different cables and the result is the same, I will try again but with the other two methods, thanks :)

[@_Axeman]

What is the step for when pressing the power+vol dwn+back/home doesn't work do anything.

[@PhyrexTechs]

Hey glad you figured it out. Thanks for hopping into the Discord.

[@DAredevil123ization]

I have question regarding the RG405m my touch screen has been disable some how i can't use the touchscreen at all. I reset my device like 5 times even disconnect my battery and nothing.

[@PhyrexTechs]

Hmm, not sure about that one. Normally disconnecting the battery fixes that issue when I have seen it before. You may try a factory reset if you can get to that menu option without the touchscreen.

[@canaldojotapee]

fucking amazing! tkx for this video

[@PhyrexTechs]

Glad to help!

[@marioraptis7338]

Hello!! thank you very much for all the videos! I tried to bring the device back to the stock firmware and followed all the steps as described. The Upgrade tool flashed the device and after 230" i got the indication "passed". i unlugged the device and tried to turn it on with all possible button combinations (simple pwr button, pwr button + vol dwn, pwr button + vol up + vol dwn etc.) and was pressing each button combination for more than 30" but the device is not turning on my any means. whenever i try to reflash it the Upgrade tool does it successfully but i still cannot turn the device on. On Windows device manager the device is stated as "sprd u2s diag (com7)". Any idea on how to fix that?

[@PhyrexTechs]

With no SD card inserted and no USB plugged in, when you hold down the power button do you get anything on the screen? even a backlight coming on or is it just completely black with no power? Also if you hold down both power and volume down for 15 seconds then let go does the power/charging indicator light ever turn red?

[@marioraptis7338]

@@PhyrexTechs thank you for the reply! no SD card and not connected to the PC. straight after the "successful" flashing i try to turn it on and i get just a black screen. no backlight no nothing. same goes when holding pwr button + vol down (even for more than 15") there is no response even from the power/charging indicator :( and when i connect the device to the PC it is recognized as "sprd u2s diag (com7)"

[@PhyrexTechs]

@@marioraptis7338 You can try to uninstall the "sprd u2s diag (com7)" device drivers from the device manager, reinstall the Unisoc Drivers, and then try the flash again. The only idea after that is to disconnect the battery and plug it back in just to see if that gets you anywhere. You could also reach out to the creator the GammaSqueeze and create an issue on the GitHub to see if he has any ideas.

[@Marcusb2kk]

RG405M here went from stock to gamma then i used 405v recover tool instead of 405m now GPS,WIFI, & BLUETOOTH stopped working.. any ideas or fix?

[@PhyrexTechs]

You should be able to do the recovery again but with the 405m one.

[@Marcusb2kk]

@@PhyrexTechs fixed it thanks

[@PhyrexTechs]

Awesome! Glad it worked.

[@deimosmc]

I have an RG552 that doesn't turn on. When I press the power button, only the fan starts to spin but it doesn't turn on the console or the LED. I've tried everything but I can't get it to turn on.

[@PhyrexTechs]

I don't have a RG552 so I might be that much help, but from what I have seen some people have had luck using a different charger. You may have to let the device completely run out of power then charge it back up. Sorry I could not be more helpful.

[@peji911]

I get 'load bin packet failed!' when I follow these instructions exactly. Any idea?

[@PhyrexTechs]

Not sure about that one. When do you get the error message coming up?

[@shozzm8154]

Extract the files together. Use 7 zip

[@ekortal]

Same for rg40xx h?

[@fultfortyfive]

Thank you!!!

[@PhyrexTechs]

You're welcome!

[@Lusde]

When I install gamma os and boot the device like I’m meant to it puts me back onto default os. Any idea why?

[@PhyrexTechs]

Check my response to your other comment.

[@alessioguidoni4729]

one question, if I go back to stock OS will I already have all the emulators and folders set correctly as when I took it out of the box or will I have to install each emulator manually

[@PhyrexTechs]

It will be just as you got it, all emulators included.

[@alessioguidoni4729]

@@PhyrexTechs I don't even have to manually connect the SD folders to the emulators?

[@GeeFamous92]

hey when you did this, did it return to the way it was shipped?

[@PhyrexTechs]

Yeah the only thing that would be different is the bootloader would still be unlocked and you would get that text on startup showing you that. If you need to lock the bootloader after reverting back to Stock OS: 1. Enable USB debugging on your device. 2. Issue the following command from a command prompt on your computer: adb reboot bootloader 3. Once your device reboots into fastboot mode, issue the following command: fastboot flashing lock 4. Press the back/home button to proceed. 5. Once complete, issue the following command: fastboot reboot.

[@GeeFamous92]

@@PhyrexTechs did they fix the play store on the default os

[@PhyrexTechs]

I will check when I revert mine back in the next few days.

[@beatsengineerman4488]

Help me please: I went to this step "Downloading appear on the flashing tool on your pc..." the count on the bar shows up untill '6' and the app crashed, after that 405m shut down, I tried several times result the same don't why, I'm on gamma v1.5. Sorry for my poor English.

[@PhyrexTechs]

You might need to try a different USB cable and port.

[@beatsengineerman4488]

I found out why, the reason is that I haven't install db, fastboot for android on this pc before... I install it and add it to env variables problem soloved!! Thanks anyway! Good video! Maybe you could add this step in futrure video for beginers of android. Thanks !@@PhyrexTechs

[@Vinod-dh8fi]

i tried reverting my RG505 back to stock OS but it keeps failing, showing the message in the upgradedownload program under the progress box as Failed: [PS2262] User Cancel.....now im stuck on Gamma OS unable to play most games....and i just got my device today... Please i need help @PhyrexTechs

[@Dmillz85]

I accidentally deleted chrome now i cant download anything. Can i factory reset it and get the apps and stuff i had when it came out the box. It came with google playstore and chrome. Its a rg 505.

[@PhyrexTechs]

You can try a factory reset. Settings, system, reset options, erase all data (factory reset).

[@NEXT.0]

@@PhyrexTechs Does the RG405M have a cooling fan?

[@Endr29]

@@NEXT.0nope

[@Papi4997]

Yo nice video thank for the video henry 😭

[@PhyrexTechs]

Thanks for watching! Glad I could help.

[@Papi4997]

@@PhyrexTechs hey Henry when you installed gamma os did u get to 2ghz patch because I’m trying to get it but confuse on how to disable it because I heard it does good performance but it take some of you battery level lower I’m trying get it for the rg405v

[@PhyrexTechs]

I have not messed with or tried the 2ghz patch yet.

[@supunlakshantha-rh3cm]

Hi my RG405v got turned off automatically. It was on Gamma OS. Now it doesnt turn on. Not even charging

[@PhyrexTechs]

Hmm, If it's not charging that could indicate a lot of things. First I would try a different charging cable and charger. If that is not working it could be the charging port or the battery. You may want to reach out to Anbernic directly to see if they would replace it or have any other ideas.

[@edgarflores9831]

Sorry One question, my console just turned off and didn't turn on again, it's been like this for months, would this process work for you? And how can I make the computer detect it, that is, what combination of buttons to do?

[@edgarflores9831]

Espero y puedas ayudarme de ante mano muchas gracias

[@PhyrexTechs]

Do you see anything show up on the screen when you try to turn it on?

[@edgarflores9831]

Nada está completamente muerta solo al conectarla al PC y presionar el botón de encender hace el sonido la PC como cuando conectas cualquier USB pero no se abre ninguna carpeta ni nada

[@PhyrexTechs]

Hmm, That sounds like it might be a screen issue. Can't be sure though.

[@antongripak1735]

Is there a chance to restore gamma OS in this situation? Or I need to get back to the stock OS and then install Gamma OS from the scratch?

[@PhyrexTechs]

Depends on your situation. If you are stuck in a boot loop you probably will have to use this to get back to stock then reinstall Gamma OS.

[@antongripak1735]

@@PhyrexTechs It's weird, but when I reset the console with this three buttons combination, everything workes as it should be now. Maybe some bug and nothing serious.

[@PhyrexTechs]

Yeah, you are probably fine. If you have anything stored on the internal storage like save games you may want to make a backup in case you run into any issues in the future.

[@bastian8271]

I don't get it. I am trying to run the Upgrade Download.exe file application but nothing comes up!

[@PhyrexTechs]

You may want to make sure that there are no anti-virus applications or windows is not blocking it.

[@ew9232]

Thanks for the video. Will this work on MacOS? I'm currently locked out of my RG405M - wife had a baby so hadn't touched my device in over 9 months and now I forgot the password - but I only have a MacBook. I put a password on it cause it's logged in to my Google account and now I can't get back in to the damn thing.

[@PhyrexTechs]

I have not yet found a program that would work with Macs for this.

[@ew9232]

@@PhyrexTechs ah bummer. Do you know of any other way to factory reset an RG405M? I know on my Retroid Pocket 3+ I can hold volume up to reach the bootloader menu to factory reset but this doesn't seem to work on my RG405M?

[@PhyrexTechs]

I tried looking for another way but I could not find one. You may wan to reach out to Anbernic to see if they know of a way.

[@ew9232]

@@PhyrexTechs Ya I did email them but they just said they didn't know lol. Thanks though!

[@FediBenhammadi]

thank you

[@PhyrexTechs]

You're welcome!

[@bacongotback]

I was successful in reverting back to the original. But after reinstalling Gamma Os and erasing user data like i followed on the other video. Turn on the rg405v it keeps turning on and off and I have to unbrick the device and do it all again. I tried repeating the process 3 times now and I can’t get gamma os to work any more. It keeps boot cycling 😭

[@PhyrexTechs]

I have not seen that issue before. Do you have another computer you might be able to try it with?

[@bacongotback]

@@PhyrexTechs It's fine now, it took me 7 restorations and reinstallations of Gammaos to start working again with no issues. Thank you for your videos. It helped me a lot

[@garrygadget]

saved my 405M after trying your gamma os install setup. It all installed then worked then died. Machine was on but wouldnt run so Ill stick with stock - there is a reason big companies test their firmware

[@PhyrexTechs]

Yeah, not sure what causes these issues but glad you got your system in a working state again.

[@diegorammzahulianov001]

If I go back to stock, do I have to lock it again? Or can I use it unlocked?

[@PhyrexTechs]

You can use it unlocked without issue

[@aaroncallejas6768]

Load bin packet failed for rg405v file on upgradedownload tool :(

[@akiyamashirayukich.]

Excuse me can you help me it kep booting back to logo I want to have stock os

[@PhyrexTechs]

If you are stuck in a boot loop you may have to remove the battery and reconnect it. Then follow the process in the video.

[@akiyamashirayukich.]

@@PhyrexTechs think that's too risky

[@akiyamashirayukich.]

I mean it kept booting back to the logo I can't activate the download

[@PhyrexTechs]

Yeah that happened to me once. The only way I could get out of the loop was to take the back off and disconnect the battery connect the USB then reconnect the battery and not power it on until you have to hold the buttons at 2:58.

[@akiyamashirayukich.]

So what now

[@guytantakul6422]

Doesn't work for me. After made the process two times, the RG505 keeps stuck in a bootloop... Any other thing I can do ?

[@PhyrexTechs]

Is the UpgradeDownload tool completing without any errors?

[@guytantakul6422]

Yes, just fine. I suspect a hardware issue, the 4th pin of the sd slot is GND.

[@guytantakul6422]

And I can't plug any micro card into the slot...

[@PhyrexTechs]

Oof, yeah not sure about that. You could always check with Gamma on the Github or in the Retro Handhelds discord 505 channel to see if he has any other ideas.

[@guytantakul6422]

Yes thanks, but the fact I can't plug a card means something is broken inside. I've ordrered some slots to replace it but before I'll follow your tracks 👍

[@antoniomontanah57]

me salvaste la vida

[@PhyrexTechs]

Encantado de ayudar

[@andreireyes5329]

hello, need help, having trouble getting error load bin failed

[@PhyrexTechs]

At what point do you get that error message?

[@lxp5850]

Hi, need help...... I'm having "Failed: [PS2264]Open port fail" under Progress

[@PhyrexTechs]

I have not heard of that error. I will have to research it some when I get home tomorrow.

[@lxp5850]

thanks @@PhyrexTechs btw, I'm trying to revert back from GammaOS to StockOS on my RG405V using the RG405V firmware

[@PhyrexTechs]

@@lxp5850 Sorry, I have not found much info on this issue. So just to make sure I understand. You getting this error in the UpgradeDownload.exe application. When exactly are you getting it. Does it come up when you select the firmware? or when you press the play button? of after the process starts or finishes?

[@ToCooTM]

@@PhyrexTechs I have the same problem. The RG405M is connected with the computer. I receive the error after pressing the Power-, Volume- and Home-Button in the UpgradeDownload.exe application.

[@PhyrexTechs]

​@@ToCooTM Is you device currently in a boot loop? I have tried to recreate this issue and have not been able to and it is making it hard to troubleshoot. I did find alternative instructions within the readme.text from Black-Seraph's 405M download that could be tried. Not sure if it will resolve this issue but worth a try. 1. Turn off your RG405M and make sure the USB cable is unplugged. 2. Open the Device Manager on your Computer. 3. Hold down the Home/Back combo button on your RG405M and plug it into your Computer while the button is held down. 4. A new device will appear in your Device Manager, right click it and click on "Update driver", then "Browse my computer for drivers", then "Browse...", pick the included "Drivers" directory and tick "Include subfolders" before hitting "Next" and finally "Close". 5. Double-click "UpgradeDownload.exe". 6. Click on "OK" if you get a "Get MAC Address Fail!" window. 7. Click on the "Load Packet" button (the single cogwheel) and choose the included "Firmware.pac" file inside the "Firmware" directory. 8. Click on the "Start downloading" button (the right-pointed arrow) and the flashing procedure should begin. 9. About 4-5 minutes later your device should be back on Anbernic's V1.15 stock firmware.

[@NEXT.0]

Does the RG405M have a cooling fan?

[@PhyrexTechs]

It does not, that is only on the 405v.

[@NEXT.0]

@@PhyrexTechs This means that the upper vents are only for breathing and not a fan?

[@PhyrexTechs]

Yeah, just to double check, I just let it run for about 30min with N64 fast-forwarding. Checked for any airflow coming out and there was none. It got a little warm but not hot. I don't think it would be an issue unless you are in a hot area and playing Gamecube or PS2 games.

[@NEXT.0]

@@PhyrexTechs thanks

[@gustavvson]

Will this software work for miyoo mini plus?

[@PhyrexTechs]

No, this is just for the RG405M, RG505, RG405V.

[@lius9902]

The files are corrupted :(( After downloading the, they won't let me extract

[@PhyrexTechs]

If you are talking about the ones for the RG405m then make sure you are extracting all of them at the same time. Also might want to try another program to unzip them.

[@ajinasawor]

help my anbernic RG505 brickes and I tried this method, but always failed at step _REPARTITION_ . it says Failed: [UB1132] Operation failed. can Anyone help?

[@PhyrexTechs]

Don't think I have seen that one before. -Make sure you have the 505 version -You can try another USB cable and port. -You can try to reinstall the unisoc drivers/ADB drivers then reboot. -Try another computer. If none of that works you can make a issue on TheGammaSqueeze Github to see if he has any ideas.

[@ajinasawor]

​​​@@PhyrexTechsAfter I install GammaOS, I tried to download 30GB data of Genshin Impact, but then the game forced closed. then I tried to restart the console, but it freezes, and then now it bricked with black screen and fastboot mode written at top left screen. do you know how or why it happened? I suspect the storage corrupted while restarting, and now it cannot be formatted/repartitioned.

[@PhyrexTechs]

Not heard of or seen that before. You may want to reach out to TheGammaSqueeze on his github or in the Retrohandheld discord to see if he has any ideas.

[@naig3747]

My rg405v keeps restarting after i do the home+power+volume down. Its plugged in the pc with the previous steps done. am i doing something wrong?

[@PhyrexTechs]

Does the progress bar ever start on the UpgradeDownload app on the computer?

[@naig3747]

No it does not start unfortunately. So far i am pressing the home/back, volume -, and the power button and it just restarts and no progress bar.

[@PhyrexTechs]

@@naig3747 Are you trying this with the device on? Can you try starting the process with the device off and then hold the buttons. You could also try another USB cable and a different USB port on the computer if available.

[@GianCarloIlagan-l6g]

Tried it with a different usb cable and different port on my laptop still no luck. I even tried it when the device is off. @@PhyrexTechs

[@naig3747]

The Upgrade download app doesnt load or anything. Tried your steps above :(

[@philiptemi1246]

Help... I got the tool to work, but the tool closes down after 6.... and my device is turned off.

[@PhyrexTechs]

Does the tool give any errors? If not where in the process does it close?

[@philiptemi1246]

@@PhyrexTechs no errors. It just closes after the status bar goes through #6

[@philiptemi1246]

@@PhyrexTechs the reason I wanted to revert back is because I wanted to upgrade to 1.5.1 but for some reason I can’t get fastboot to recognize the device.

[@PhyrexTechs]

Are you still able to boot into into Gamma OS?

[@philiptemi1246]

@@PhyrexTechs yes yes. It boots fine.

[@guardsondalangpan1991]

thanks

[@PhyrexTechs]

Anytime! Glad to help out.

[@stephencothran3702]

what buittons do i hit on my rg505?

[@PhyrexTechs]

It should be the same buttons. You back/home button should beon the right side of your device.

[@stephencothran3702]

@@PhyrexTechs I figured it out, i forgot install the driver, thanks, I really liked this video.

[@PhyrexTechs]

Awesome, glad you got it figured out.

[@darkangel9685]

I tried this and I just get “Failed : [UB1142] Wait input time out” in the progress bar. Now I have a literal brick 😢

[@PhyrexTechs]

Best thing to try is a different USB cable and different USB port.

[@darkangel9685]

Switched out USB cables and that worked! Thanks!

[@PhyrexTechs]

Awesome!

[@cuongvu7748]

xin chào. khi tôi nhấn đồng thời nút nguồn + giảm âm lượng + nút home thì máy tính không báo thanh tiến trình download

[@PhyrexTechs]

The buttons have to be held down for around 10 seconds. if it is still not starting. Make sure you have installed the Unisoc drivers and then Reboot the computer. Try another USB cable and another USB port. If your device is stuck in a boot loop you may need to unplug the battery then plug it back in and hold all the buttons when the device is off.

[@cuongvu7748]

@@PhyrexTechs tôi dùng sợi cáp đi theo máy. và tôi đã cài trình điều khiển Usonic. trong nhưng lần tôi ấn giữ các nút thì có 1 lần thanh tiến trình trên máy tính có chạy. nhưng khi tôi đặt máy chơi game xuống thì nó đã báo lỗi. và sau lần đó tôi không thể làm được nữa, xin hãy giúp tôi. tôi đang dùng rg505

[@PhyrexTechs]

Off the top of my head, I would recommend you restart the computer and device. Re-download the software and follow the steps again. Make sure that the firmware version you have is the rg505 one. Ill check to see if there is anything else we can try.

[@cuongvu7748]

@@PhyrexTechs tôi đã làm theo bạn. và phần Progress của tôi báo đỏ Failed: [PS2262]User cancel

[@PhyrexTechs]

I have only seen that error when someone does not let go of the buttons on the device when the progress bar starts. If following that step can you tell me when in the process is it giving you that error? Right after it starts? or does it run for a few minutes then shows that error.?

[@akiyamashirayukich.]

excuse me how to get the 505 to stock os

[@PhyrexTechs]

You should be able to follow these steps for the 505 also. You just need to make sure to use the 505 unbricker link. Let me know if you run into any issues.

[@akiyamashirayukich.]

Well I can't seem to activate the download in the 505 to laptop of mine I did everything right but it keeps going back to the black screen I meant the logo of it

[@akiyamashirayukich.]

Well it keeps booting back to gamma and two I can't activate the download

[@UNKNOWN-zd3cg]

how to unzip the file with nanazip? can you teach me :)

[@PhyrexTechs]

You should be able to use 7zip also. I just use nanazip as it works better for me.

[@mirkogatti1032]

thx

[@PhyrexTechs]

You're welcome!

[@marcelo_lap]

i have no sound in my games, do you know why?

[@PhyrexTechs]

A couple things to check. Do you see a headphone icon in the top right of notification bar? Do you get sound if you plug in headphones?

[@marcelo_lap]

@@PhyrexTechs yeah, i see the headphone icon

[@marcelo_lap]

@@PhyrexTechs sound works on headphone

[@PhyrexTechs]

I looked up some info on it and it seems it might be an issue with the headphone jack itself. You may want to reach out to Anbernic directly to see if they have found any solutions or may replace it for you.

[@marcelo_lap]

@@PhyrexTechs thanks for the support man

[@jeremiahroberts4142]

Mine won’t connect to wifi anyway to reset device

[@PhyrexTechs]

This video should get it to reset back to stock.

[@jeremiahroberts4142]

@@PhyrexTechs ok I’m going to keep trying because it gets stuck at boot up screen and won’t factory reset it won’t even connect to my labtop unfortunately

[@jeremiahroberts4142]

@@PhyrexTechswhen I tried downloading the one for rg405v says file Cannot be found still download it anyway?

[@PhyrexTechs]

Hmm, If it says it cannot be previewed, then yes see if you can still download it.

[@ImNearz_]

How did u get the firmware?

[@PhyrexTechs]

The firmware is located in the firmware folder that comes with the unbricker tool.

[@ImNearz_]

@@PhyrexTechswhere i kinda forgot

[@PhyrexTechs]

Its going to depend on your device. RG405M Unbricker & Firmware via Black-Seraphs Patreon: www.patreon.com/posts/anbernic-rg405m-81427437 RG405V Unbricker & Firmware: drive.google.com/file/d/1idODOwE197mRHwMHDU_Y7bnAiWiackbN/view?usp=sharing RG505 Unbricker & Firmware: drive.google.com/file/d/1WNildo8TZDW6L4tzY9SDEjL3NhPGg_gG/view?usp=drive_link Then in the Firmware folder

[@PhyrexTechs]

@@李婷-y8z Sorry, I do not.