Greatest Technician Needs Board Repaired - Let's Chase The FIX

The Greatest Technician's Original Video: • Why are TV's so dispos...
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[@ManBunGaming]

Hell yea chase it sucks you couldn’t get the greatest technicians tv fixed but you Collab pretty much thats really cool (Logan)

[@chasefournier]

Yeah man! I wish it was fixable:/

[@elpatron6801]

Ah yes, the Hissence tv board. The chip is "Sad"- salem, AKA, the greatest technician that's ever lived

[@Empterdose]

WinHex is a Windows GUI tool, so suggesting tools a world away from that may not be useful to you, but on Linux, ddrescue is a fantastic tool for doing reliable block-level recovery of flaky storage devices. Basically, it reads a storage device block by block (as would regular dd), and as it goes, it records a map of each block on the device and whether they've been successfully read or verified. That way, when the device drops off and reconnects, ddrescue can use the map file to pick up from where it left off without re-reading large swaths of the disk every time it restarts.

[@chasefournier]

Thank you! If I ever come across another one of these types of repairs/recoveries, I'll take your advice!

[@Craft4Cube]

@@chasefournier And another note. Be careful with cloning eMMCs. They have 2 or 3 hardware partitions (called BOOT1, BOOT2 and RPMB) which are not accessible when using it in windows. If you want to try cloning another eMMC feel free to hit me up. The reason the TV didn't boot is likely that the Bootloader was stored in on of those hardware partitions

[@diecrafter1986]

YAYY, nice that this is happening!!

[@DragonLawyer]

A crossover episode!?! Hell yeah 😎

[@ConsoleKingRepair]

I know what a pain this can be! Flashing NAND on ps3s takes hours... I can only imagine the painful process of "hoping it wont disconnect" while trying to verify a dump. Nice video!

[@chasefournier]

Facts! I used to have a 360clip paired with teensy 2.0++ and if your dump was bad it was like 💀

[@natek5051]

ey chase 😎 lil tricky trick i seen from the hddrecoveryservices guy, failing chips can provide a proper read sometimes while at different temperatures -- can turn some dustoff upside down and allow the liquid spray to chill the chip during the read

[@chasefournier]

👀 maybe the alcohol wasn't establishing a good connection but was actually cooling down the chip 💀 lol

[@natek5051]

@@chasefournier alcohol will temporarily displace old flux while it is still present, allowing better contact with pins to pads BUT has very low thermal mass, and disappears quickly. plunging temperature by dustoff freezing is also a short-lived affect, but the goal of it is to compensate for the chip's internal condition, instead of its' communication to the outside world

[@colingale]

@@natek5051 I second the upside down can off dust-off or use 'chip cool' (products i used the 80's dunno if still exists after whole cfc thing) but super cool Chips/EMMC's does work, I've used it on Masked PROMS /EPROMS / mcu's you name it. it's not a 100% solution , as a tech i know that sometimes there is no solution without manufacturer support , and on final note you can get the hisense jtag tool by creating a hisense support account with a Chinese sim number, or see if there is a available login with your fav #IHATESIGNUPS tool

[@polygaryd]

Should have just gotten the same tv but working and dumped the data off the working emmc then put it on a new emmc to fix the broken tv and also uploaded the good image online for others to use. Then sold the working tv you had to buy to get the good emmc dump. Or returned it to the store if it was able to be bought brand new.

[@BillAnt]

#Right2Repair is important, case in point. Tossing an otherwise perfectly fine device into the landfill is just sad.

[@ilikenwf]

Might be easier to use linux and dd for the emmc? In addition smarttvs use android so the filesystem is probably ext3/ext4 or f2fs, which Linux would let you natively repair, even within the .img itself.

[@cameramaker]

So what is the failure - if you just replace the chip and as you said in the intro - copy the data from old emmc to new emmc. To me that does not look like solving any fault?

[@Lazyman1975]

0:01 I bought a new board off of eBay for $20 for my TCL Roku TV when it turned on it was like brand new.

[@Lazyman1975]

I actually found a piece of cider stuck in the coils by the power connector.

[@j.lietka9406]

I thought he did do some microsoldering. Thanks Chase! Doesn't it take quite a while to load the program, files onto a new chip?

[@DragonLawyer]

What if you pulled a chip from a working unit? Could you copy it as a “master chip” and then install it into the broken unit? Or are all chips unique and/or married to that specific board?

[@chasefournier]

That's the thing, considering the data is encrypted, leads me to believe that the CPU has a special key to decrypt that data. Like I understand the importance of encrypting data, but not on a TV! Lol 🤣

[@alanarteaga6400]

Great video! One cuestion, do you think that the emmc of a oled switch could be read it in the all socket to save the Boot1,2 and userarea to change the emmc?

[@chasefournier]

I think it would be able to. I haven't tried though.

[@LGTechRepairs]

You can access the RAW GP partition and BOOT 1/2 with this method I believe.

[@hove131]

How do you keep your stencils from bowing up when using solder paste? I can never get this down using solder paste and stencils. Nice work.

[@chasefournier]

Lots of practice LOL Honestly, I'll probably have to make a video soon on how to do it with any chip. And I mean, not too big because I don't work on super big IC's. Like gpus etc.

[@hove131]

@@chasefournier I've only tried the super thin Nintendo switch stencil so I'm sure that doesn't help but I see people use them just fine. I've had it bow at 250C lol.

[@mirayanomi]

​@@hove131Tweezer grip is very important practice makes perfect.

[@samuelmagilocusts2870]

Seems like we need to orchestrate a covert operation to take back this firmware creation software from hisense Samsung Sony and LG. This is a job for Thug Life Chase.

[@chasefournier]

I need to start reverse engineering this stuff 🤣🤣

[@f0x4nn3]

THX, for sure never will buy a highsense device or any thing they make for other brands.

[@anomicxtreme]

What eMMc writer you using? Can you give us a link?

[@chasefournier]

I'm using a tool called the Allsocket, it can be found on AliExpress.

[@tramdr]

Nice try. You still Da Man. One of your best.

[@outfield1988]

Good try brother

[@markvandesande8855]

Your audio timing is out of sync!😮 I wouldn't buy a Hisense if you paid me!

[@jackipiegg]

9:37 There's a huge community on 4pda that has full dumps of TVs, should have google'd harder lol.

[@DragonLawyer]

Were you able to find it?

[@KorAllRBare]

Another brand that will now be entered into the blacklist, Listed as a second rate careless Brand to steer completely away from.. BTW.. All that Hi ??! Er-Hi-NONsense needed to do was to provide the chips Data or some image file, but all they see is another sucker that is forced to buy a new TV of theirs, I guess it's time for an online data base for image files for these Chips to be established..