Very strange problem


Sep 24, 2018
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#1
Hi guys, I have a strange problem with my other Mi 8.
A week ago the screen suddenly turned off while device was still on, so I could connect it to pc and transfer files or listen sound from device. I flashed it through fastboot to stock rom but I didn't solve the problem. After 7 days, the screen turned on and it seems working fine. I think it's not a software problem cause I flashed it, but it can't be a hardware problem cause now it works...
It's a Mi 8 China version, unlocked by unofficial way with global ROM installed: should I unlock it officially? Could be this the problem?
What do you think about? Thank you
 
Aug 29, 2018
36
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#2
Hi guys, I have a strange problem with my other Mi 8.
A week ago the screen suddenly turned off while device was still on, so I could connect it to pc and transfer files or listen sound from device. I flashed it through fastboot to stock rom but I didn't solve the problem. After 7 days, the screen turned on and it seems working fine. I think it's not a software problem cause I flashed it, but it can't be a hardware problem cause now it works...
It's a Mi 8 China version, unlocked by unofficial way with global ROM installed: should I unlock it officially? Could be this the problem?
What do you think about? Thank you

To rule out a software bug, I would put the phone completely new. Means mobile to boot into fastboot mode and install the latest tgz file with Miflash. Here a left for the last tgz file. China stable Rome. Don`t close Bootloader !!!!!!! Only select "clean all" in MiFlash to flash the Rom!!!!!!!
http://www.miui.com/shuaji-393.html
 
Last edited:
Sep 24, 2018
28
9
15
#3
To rule out a software bug, I would put the phone completely new. Means mobile to boot into fastboot mode and install the latest tgz file with Miflash. Here a left for the last tgz file. China stable Rome. Don`t close Bootloader !!!!!!! Only select "clean all" in MiFlash to flash the Rom!!!!!!!
http://www.miui.com/shuaji-393.html
Hi mate, thanks for your answer. I did it using global tgz file and it didn't solve the problem. Do you think that it would be different using china one? It's a Mi8 CH version.
 
Aug 29, 2018
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#6
I would not do that, it can not be, I also have a China version and have never had any problems. And remember, it's possible that you may have to lock your phone or wait 30 hours before unlocking it with your account. If the problem is not there at the moment, then I would not do anything.
 
Dec 2, 2017
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#7
If it's a hardware problem, you can try to provoke it by heating/cooling or shaking it.

If you think it is a hardware problem, send it back to the seller and get a new phone or your money back.

If you can't do that, it could be just the connector ribbon for the screen being poorly connected.
That is easy to fix, but only if you know what you are doing.
 
Sep 24, 2018
28
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#8
Bangg**d told me I have to pay every replacement my Mi 8 needs (screen or motherboard), plus shipping cost.
Atm screen is working but it turns off frequently, so I think the problem isn't screen: maybe connector or motherboard.
What do you suggest me? I could open it.
I googled the problem, and I found only a guy having the same issue, but nobody answered. Here's a screenshot
 

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Dec 2, 2017
597
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#9
Well, I would not try opening it myself, as I don't have the experience or the proper tools.

I would try to find some local (unofficial) repair shop with a good reputation, tell them what you think the problem is, and see what they suggest.