Has anyone succeeded in repairing a bricked Poco M3?

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Liffeyman

Senior Member
Feb 13, 2013
337
102
Dublin
Xiaomi Poco F1
Guys this is my procedure to turn on the phone:

I can make it turn on Android after messing with the battery and sub-board cables but this is just a workahound, trying to turn it on normally through the power button always makes it turn on in edl mode

But opening the device voids the warranty, so anyone who has access to a repair center is better off asking for the warranty

What to do:
1. Disconnect the battery cable and the secondary board cable.
2. Connect charger.
3. Hold the power button.
4. Connect the secondary board cable and quickly connect the battery cable.
5. Release the power button when the device vibrates.

It doesn't always work the first time, you may need several tries to get it
There is no ribbon connecting the buttons with MB. Without the MB back plate securing it the buttons are defunct
 

Liffeyman

Senior Member
Feb 13, 2013
337
102
Dublin
Xiaomi Poco F1
Guys this is my procedure to turn on the phone:

I can make it turn on Android after messing with the battery and sub-board cables but this is just a workahound, trying to turn it on normally through the power button always makes it turn on in edl mode

But opening the device voids the warranty, so anyone who has access to a repair center is better off asking for the warranty

What to do:
1. Disconnect the battery cable and the secondary board cable.
2. Connect charger.
3. Hold the power button.
4. Connect the secondary board cable and quickly connect the battery cable.
5. Release the power button when the device vibrates.

It doesn't always work the first time, you may need several tries to get it

Guys this is my procedure to turn on the phone:

I can make it turn on Android after messing with the battery and sub-board cables but this is just a workahound, trying to turn it on normally through the power button always makes it turn on in edl mode

But opening the device voids the warranty, so anyone who has access to a repair center is better off asking for the warranty

What to do:
1. Disconnect the battery cable and the secondary board cable.
2. Connect charger.
3. Hold the power button.
4. Connect the secondary board cable and quickly connect the battery cable.
5. Release the power button when the device vibrates.

It doesn't always work the first time, you may need several tries to get it
There is no ribbon connecting the buttons with MB. Without the MB back plate securing it the buttons are defunct
 

bidomo

Senior Member
Aug 5, 2011
83
5
Tlalnepantla
My poco won't turn on with this method (battery disconnected, press power, connect cable, connect battery), used to work las time, but now it doesn't do anything, shows a white battery icon and that's is, no attempt to turn on
 

Romainj_

Member
Sep 27, 2021
6
2
My poco won't turn on with this method (battery disconnected, press power, connect cable, connect battery), used to work las time, but now it doesn't do anything, shows a white battery icon and that's is, no attempt to turn on

 

bidomo

Senior Member
Aug 5, 2011
83
5
Tlalnepantla
I never updated my phone cause I knew this would happen, I tried to reboot for a very different reason, and now I can't get it to turn on, pretty bad timing to fail on me


.::EDIT::. So, Instead of using the wall charger, used a USB 2.0 port on my PC, phone turned on at first try
 
Last edited:

Romainj_

Member
Sep 27, 2021
6
2
I never updated my phone cause I knew this would happen, I tried to reboot for a very different reason, and now I can't get it to turn on, pretty bad timing to fail on me


.::EDIT::. So, Instead of using the wall charger, used a USB 2.0 port on my PC, phone turned on at first try
use this hardware fix.

remove the metal
 
My M3 was working perfectly. I put it to restart and then it didn't turn on anymore. It is now only recognized as "Qualcomm HS-USB QDLoader 9008" on Windows. I opened the phone and with some magical combination (remove/connect flat cables from the battery and display, connect the USB cable, press volume keys and short the test points) it started in fastboot. So I was able to flash the "fastboot ROM". Unfortunately, on the next boot it still does not turn on normally. Has anyone succeeded in repairing the Poco M3? In Mi Flash is requested an authenticated account to flash through it, is it worth paying someone to provide the account? Does anyone have the contact of someone who makes cheap? Any help is welcome, thank you!
Do u have a stock firmware for it? Otherwise known as a factory firmware.

If you then you spilt the image sparce file and even the bl and use xbl to reboot
 

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  • 7
    Guys this is my procedure to turn on the phone:

    I can make it turn on Android after messing with the battery and sub-board cables but this is just a workahound, trying to turn it on normally through the power button always makes it turn on in edl mode

    But opening the device voids the warranty, so anyone who has access to a repair center is better off asking for the warranty

    What to do:
    1. Disconnect the battery cable and the secondary board cable.
    2. Connect charger.
    3. Hold the power button.
    4. Connect the secondary board cable and quickly connect the battery cable.
    5. Release the power button when the device vibrates.

    It doesn't always work the first time, you may need several tries to get it
    3
    How about custom roms,did you try it?
    I've been waiting for this m3 patched m3 firehose edl no auth file to surface on the web but still no luck.I just want to unlock my bootloader.
    This problem started to happen to me while I was running Crdroid. A couple of weeks earlier when it was still in the stock ROM I had installed update 12.0.8. Install custom ROM does not solve the problem. Although it appears to be an issue created by an update, it's not simply a software issue, it's a problem that was bound to happen. If that weren't so, Poco's repair centers would only be repairing the system of the devices that arrive there and not entirely replacing the main board. I also have a suspicion that this issue is happening with a specific manufacturing batch. Mine and those of people I know with the same problem were manufactured in 2020.11. I would like everyone here with this problem to say the date of manufacture of your M3, you can read this information on the box.
    3
    Mr. sarabbafrani Hello,I am very happy to hear that you have successfully repaired 100+ machines, I would like to ask you which part of the motherboard is damaged by this problem, and which repair procedure is what, is it convenient to inform everyone?
    no pmic also motherboard is healthy do not attack your MB. :))
    i will post the fix just wait
    2
    I just wait till the battery totally discharge and then plug in the charger,sofar been through this problem for 2x,the first one for 2 days and 5 days for later because the battery was full.
    This happens when Im restarting the device and now even there is a new update,Im still scare to update my device to the latest firmware incase it wont boot again.
    Should I try to update or nah,guys?