Has anyone succeeded in repairing a bricked Poco M3?

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Koyje

New member
Feb 28, 2022
3
0
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
You save my ****ing life
 

dkrausejr

New member
Oct 25, 2008
4
0
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!
it worked for me
 

mabinodkhadka

New member
Feb 13, 2017
3
0
i have two phones with this same problem...please share.
If our problem is same then try this. First check your phone is detecting on computer or not. If computer is detecting device press power key and volume down button at once. Your PC will give disconnecting notification. Please note that timing when your PC gives disconnecting notification. Now disconnect your set, prepair your charger and press power key and volume down at same and at the noted disconnecting timing connect your charger with phone. If you get succeed, your phone will show charging animation. You have to try several to get succeed in this method. Thanks. sorry for my broken English. 😊
 

AlphaBravo

Senior Member
Dec 22, 2010
317
40
Islamabad
Redmi Note 8 Pro
If our problem is same then try this. First check your phone is detecting on computer or not. If computer is detecting device press power key and volume down button at once. Your PC will give disconnecting notification. Please note that timing when your PC gives disconnecting notification. Now disconnect your set, prepair your charger and press power key and volume down at same and at the noted disconnecting timing connect your charger with phone. If you get succeed, your phone will show charging animation. You have to try several to get succeed in this method. Thanks. sorry for my broken English. 😊
Hit and Trial. Not an easy method as you said earlier.
 

AlphaBravo

Senior Member
Dec 22, 2010
317
40
Islamabad
Redmi Note 8 Pro
Do you succeed or not?
I got it repaired at a mobile repairing workshop, it worked well. After that it I use to restart it after every 6-7 days, because its my understanding that if you run this phone non stop without restarting for a month, it becomes hot hung and switches off automatically. So before reaching that point restart it manually yourself to keep it cool.
 

cfxavier

New member
Feb 19, 2020
3
1
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!
Yes I have succeeded in fixing a Poco M3.
It is a hardware problem but easy to fix.
I have seen several possble fixing, but most of tem just hide the problem heating the Motherboard.
The video where I found the solution is the following:


I did it miself, it requires just a litle knoledge of soldering and a component easy to colect in most of the junk motherboards.
Or, perhaps, show this video to a techinitian.
Any average technitian can do it for you.
I am typing this message from my POCO M3
Which was with the same problem.
Good luck.
 
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AlphaBravo

Senior Member
Dec 22, 2010
317
40
Islamabad
Redmi Note 8 Pro
Yes I have succeeded in fixing a Poco M3.
It is a hardware problem but easy to fix.
I have seen several possble fixing, but most of tem just hide the problem heating the Motherboard.
The video where I found the solution is the following:


I did it miself, it requires just a litle knoledge of soldering and a component easy to colect in most of the junk motherboards.
Or, perhaps, show this video to a techinitian.
Any average technitian can do it for you.
I am typing this message from my POCO M3
Which was with the same problem.
Good luck.
Which component he moved?
 

cfxavier

New member
Feb 19, 2020
3
1
Which component he moved?
It is a coil 1uH 3.2A +-20%.
However, this solution did not last long!
Sorry.
But, I am trying different approaches, I will post the permanent solution.
Now I have 4 different POCO M3.
Please give me a couple of weeks.
One of the POCOs worked with removing 2 capacitors, however, the other 3 lost carrier when I do the same.
For now, just disconnect the battery and the screen/changing cable before each power on.
I will find a solution.
I have 3 cell phones to fix!
 

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  • 1
    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!
    Yes I have succeeded in fixing a Poco M3.
    It is a hardware problem but easy to fix.
    I have seen several possble fixing, but most of tem just hide the problem heating the Motherboard.
    The video where I found the solution is the following:


    I did it miself, it requires just a litle knoledge of soldering and a component easy to colect in most of the junk motherboards.
    Or, perhaps, show this video to a techinitian.
    Any average technitian can do it for you.
    I am typing this message from my POCO M3
    Which was with the same problem.
    Good luck.
  • 6
    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?