[Solved] Bricked phone, can't unbrick it.

gilianmartins

\n\nHi.
I tried to modify the build.prop file to get the navigation bar, it made me a black screen at the boot sequence so I tried to flash the system.img w/ sp flash tool.
It didn't start so I unplugged my phone but now it won't turn on and windows tell me : Unknown driver, USB Driver not recognized.
Help me please.

bencebacsi

Hello,

Did you download the ROM, flasher and driver from here?: http://community.umidigi.com/thread-2830-1-1.html
Maybe your phone has not been powered off, so it can't connect as a Preloader VCOM device. Press and hold the power button for at least 10 seconds, then try to flash your phone again.

gilianmartins

Hi, I have all of this...
And I already pressed the power button to make sure that it was off.

bencebacsi

Do you use a 64-bit Windows system? This driver won't work with 32-bit releases.

gilianmartins

Yes. Windows 10 Pro 64bits.

bencebacsi

I've got the same system installed on my desktop and all the provided tools work properly. I already flashed my Touch several times. Try to use another USB cable/port or another computer. Don't press any button when connecting your phone to USB.

P.s.: My Touch is currently disassembled, so until tomorrow I can't test whether the 10-second-long power button press really shuts down this phone or not.

gilianmartins

I tried this already.
My problem now is that the screen doesn't turn on so Idk if the phone is off or not, but it seems like it's functionnal when I connect it because I have the error notification + code 43 on Windows' driver manager.
I even can't turn it into the download mode, I just need this to flash it again...

bencebacsi

Possibly your phone hasn't really shut down but that's just a guess without holding it in hand. In this case I'd remove the battery for a few seconds, then put it back before the next experiment. However, this phone needs some cheap but special tools to disassemble without damaging its cover.

gilianmartins

But it's a removable battery or a soldered one?
I have some plastic cheap tools, but if I do this it will remove the warranty, no?

bencebacsi

Not soldered but a plate covers its connector and there's a warranty sticker on one of the head of its screws so yes, you may lose your warranty by removing the battery. The sticker can be removed in one piece if you're enough careful.