Flashing Original Samsung Galaxy S20 Factory Firmware Images

[@alexcapurro6114]

These tutorials are spot on! If it wasn't for them and the support shown i would not have been able to do it. But just to add an extra step for those who may need it. After flashing stock firmware, the bootloader (OEM) stays unlocked, meaning that things like GooglePay and some bank apps wont work. The way to fix this is by re-locking the oem after you have flashed your new stock rom. Here are the steps to do that (since it took me a while to figure out and there is hardly any info online) - bear in mind this works if you have NOT tripped Knox and its using a stock rom and do these steps at your own risk - always have a backup just in case: How to re-lock bootloader (for S20): 1. Turn off your device. 2. Press Volume down + volume up and insert usb cable to your phone to start the download mode 3. Read the text below on the Download Mode screen to block or unblock the Bootloader. 4.- Long press the vol (+) button to enter unlock mode. LOCK BOOTLOADER SCREEN: 5. Read the 2 options available, one will say to lock the lock the bootloader, the other to lock. Press the relevant volume button (was down on mine) until the phone restarts (this will erase your data and restart automatically). 6. Go into developer mode and then uncheck the unlocked oem option, restart your phone. That's it! Now you have a device with an OEM locked, so everything will work as expected, again, as long as its a stock rom and you have NOT tripped Knox by root etc.

[@MisterryFox]

thanks

[@sunneh1]

If everyone can calmly made teaching like this the world would have been more better well done👍🏽👍🏽

[@ExplainingAndroid]

that's so kind of you to say. thanks so much!

[@iftekharifat8317]

Sir , i am using S20 plus USA AT&T variant in bangladesh.. i didn't get any update till now. Can i upgrade my firmware to global room to get further update without lock my sim service and if possible which way i should follow...??

[@ExplainingAndroid]

I'm not familiar with changing to a "global" rom since I just stick with the region that comes with my phone but you should be able to install new AT&T firmware updates. you can follow this video, but when installing OTA updates like this, you pick the HOME_CSC file so you can keep your data

[@iftekharifat8317]

@@ExplainingAndroid tnx for the advice🙂

[@scottschatzberg9966]

my s20 was originally from verizon. and i swapped to att. it worked fine for about 6 months until they shut down the 3g towers. now i cant receive or make phone calls. att told me i have to delete the verizon firmware from the phone and redownload the att firmware to it. figured that was ATT's job but i guess its mine now. is this how i would do this? or do u have a recommended video for that? im lost. and dont wanna buy ANOTHER phone. thanks.

[@ExplainingAndroid]

yes, this is the process used. you'll just download the carrier firmware for your s20 model and flash it via Odin

[@scottschatzberg9966]

@@ExplainingAndroid thanks for the quick reply! Would this be likely to get my Verizon phone to make calls for att and make it have att updates? Does it mess up any apps or anything? Changing firmware.

[@3678321orlando]

Bro, could you help me?, I rooted my phone, all works fine, but now when I turn on my phone it tunrs off by itself immediately. I reverted the root, and install Original Samgsung Firmware but problems persist.

[@ExplainingAndroid]

beyond a factory reset (which is what your original firmware install does), i honestly can't recommend anything that would fix this issue you replacing the firmware with a new copy (to revert root) eliminates all possibility that this rebooting thing is a software related issue. so I suspect it is a hardware issue

[@justinw7323]

for usa snapdragon get patched odin factory reset s20 instead of U you should be looking for U1 files from your model number. samfw.com is a good place to find firmware fast and free. works for my note 20.

[@ExplainingAndroid]

thanks for the heads up about this website. I was just looking for a place to find older firmwares and this one had one for my s10. I will try to do a video about this site next week and will mention you oh, and join our daily Android discussions too kzbin.info/door/nowc_KHgjVNj3Y-E-oQ8awjoin

[@justinw7323]

@@ExplainingAndroid the website downloading is fast depending on your connection.

[@watercoolingmodding]

hello can you show me a page where I get the original firmware from Samsung Galaxy S20 5G (Qualcomm Snapdragon 865) received I have the Chinese version of the original s20 now need the original frimeare to flash?

[@denis_p.4213]

F

[@denis_p.4213]

F

[@hasanalnoman2838]

is ur phone exynos or sd version

[@Gerstark]

Can't get into download mode, my screen is always black, the only response i get from the device is that my laptop sounds as a new USB deviice is connected, i've tried everything, i think i lost it :(

[@ExplainingAndroid]

sounds like an emergency mode or something. you can also boot into Download Mode by doing the command "adb reboot bootloader"

[@Gerstark]

@@ExplainingAndroid is it possible to use adb commands when i cant activate download mode or usb debug?

[@ExplainingAndroid]

@@Gerstark no, you need to enable usb debugging mode to accept the command

[@gerardocornejo8114]

hey i just had a problem on my s20 fe yesterday it wont recognize my password at all and wont even do nothing if i put a grong one several times, i was thinking on either factory reset it or do what you did on you video, but i don't have any data baccked up can you please tell me how to back it up from recovery mode, do you have a video about how to do it? i dont want to loose my media data

[@ExplainingAndroid]

you don't back up data from recovery mode, sadly. it isn't for recovering 'your data' instead, it's for recovering the android OS data to stock I'm sorry

[@gerardocornejo8114]

but is there any way to recover data from recovery at all?

[@ExplainingAndroid]

@@gerardocornejo8114 no, recovery mode not a place to recover your data. it's a place to recover the OS only

[@acts2211]

great video. i have a samsung s 20 FE with att and cant get any update to come to phone. according to att web site there are 5 updates. i have been on the phone with att for 2 weeks can not make progress. any thoughts?

[@ExplainingAndroid]

do you use it with an ATT SIM card? I've had verizon phones that won't detect OTA updates until an active verizon SIM card is in you can manually update the phone with Odin similarly shown in the video here. the only difference would be to use the home_csc file instead (as that lets you retain your personal data) if you need a video dedicated to the process, stay tuned to the channel here. I should be able to plan one out for the Galaxy S21 Ultra I have (again, the process would be the same) i have a couple of videos that I need to do first, but I could do a 'how to manually flash an OTA update with odin' video that you could follow for the ATT S20 FE (even though I label it for the S21 ultra)

[@acts2211]

@@ExplainingAndroid I just had a brand new SIM card put in today at the AT&T store and I've been using the SIM card the whole time . no dice. I'll definitely stay tuned for future videos . appreciate the prompt response. Point well-taken about the home CSC file however no matter where I look I don't see any updates for the firmware specific to AT&T. I was nervous about using unbranded carrier for the firmware.

[@sabiqbeg253]

Hey man! My process won't proceed further Super.img. Any suggestions on how to fix that? I am using the S20+ and I bricked it while unrooting using Magisk. It went into bootloop and then to fix that I tried locking the bootloader. And I think its truly messed up now

[@Saifera]

did u figure this out

[@KSAEletronicos]

i have this problem, you resolved?

[@adesuyioluwatobi6075]

Tried flashing my sm-s906n back to official software but it says re-partition failed. what can i do?

[@samshah8641]

Sir i m using s20pluse 5g at&t us version in India android 11 one ui 3.1 and indian models s20pluse comes vertical lines in display after 12 update so i m confused about 12 update

[@NeoSim76]

Thanks for taking the time to post this, dude. But I keep getting 'FAIL!"... *sad face* can't figure out where it's going wrong. I'm trying to unbrick my S20 FE. It was rooted with Magisk. I tried to unroot using a shitty app but it bricked. Any tips?

[@NeoSim76]

All samfirm dl links seem to now be defunct or blocked. Anyone got a download link that works?

[@mesayfeleke9999]

hey guys, please help me out. i flashed my s20 plus with the latest firmware but can't register to the network and i can't make a call. and i wanted to downgrade but boot-loader says rev check fail. so i can't flash with another version of frimware please how can i fix it.

[@NeoSim76]

No one wanna help me?

[@tarekrahman6007]

My samsung galaxy s20 ultra exynos edition has been rooted and bootloader unlock, i updated the phone with samsung switch . Everything working fine, but my sim network not working .if i Lock my bootloader and flash it with odin the problem solve again? One more thing of I flash with odin my IMEI number has been gone or not?

[@RalfsMuizniekss]

To verify that im not a bot i just thought i lost my phone, and this tutorial helped me alot because i was shaking and my phone costs more than 800 euros, love you brother, thank god you exist

[@moha_ea97]

Does this method works with galaxy note 9?

[@ExplainingAndroid]

yes, the whole process is exactly the same. you just want to make sure you're downloading the firmware for your device (instead of the S20 as mentioned in this video). and you're good

[@moha_ea97]

@@ExplainingAndroid thanks for fast reply. I just subscribed.

[@Kidvicious707]

Will this work for the S20 FE ?

[@ExplainingAndroid]

yes, this will work for the FE variant as well. just make sure you download the firmware that matches your model number/CSC region code and don't forget to join our daily Android discussions kzbin.info/door/nowc_KHgjVNj3Y-E-oQ8awjoin

[@Kret404]

Hi is this method work without unlock bootloader?

[@hasanalnoman2838]

Does this firmware have esim option?

[@balghamdi1]

thanks

[@ExplainingAndroid]

you're welcome don't forget to join our daily Android discussions kzbin.info/door/nowc_KHgjVNj3Y-E-oQ8awjoin

[@hades1265]

Can you make a video about flashing sm 986u1 firmware to sm g986u.?

[@ASEP_RCK]

Good

[@tessellationarts2971]

god bless you dude

[@MiguelAngel-kc1jt]

Link

[@ExplainingAndroid]

Am gonna be writing up the tutorial on AndroidExplained.com today (failing any other changes in plans). I'm likely going to be including this video and the factory reset video in an "unbrick" tutorial. So stay updated for that please

[@mohamedlsmal]

is it work with samsung s 20+ ?

[@benvenutibarbara1]

First

[@waqarjawaid]

Hi, i have purchased s20 ultra online from USA which is Att carrier and the seller has the code to unlock. Which i didn't knew when i make abid on it. Anyways now i have the phone and since i am in Qatar and its att network. Still works after unlock. Is it possible to flash the firmware of att and upgrade to unlocked firmware of my region.

[@ExplainingAndroid]

yes, but since it's an ATT phone it can only be "sim unlocked," not "bootloader unlocked." I don't think the Qatar firmware works for the Snapdragon/ATT phone. you're going to be stuck with a Snapdragon-based Samsung firmware/CSC

[@venkateshreddy1524]

I have s20 locked to t-mobile USA I want to know what firmware I have to use to unlock the device and use it with any sim? Im from india

[@Fedsanchez76]

Does the phone needs to be rooted or unlocked

[@justinw7323]

No. Just factory reset then flash the files and use csc make sure you use the right firmware based on your model number. You can go to u to u1 if you use snap dragon.