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Xiaomi Redmi 9A won´t boot after interruped flashing with SP Flash tool
#1

Post: 1 by KhoDialga



Good day everyone, this morning I got stuck on a bootloop with my phone without being able to access neither fastboot nor recovery mode. I attempted to flash the default rom with SP Flash Tool and bypassing Mediatek´s authorization, but in the middle of flashing, the process got interrupted by an error. Now I´m out of the bootloop, but the phone won´t turn on. If it couldn´t get worse, whenever I connected the phone to my PC, it would fail to recognize the device and say that it isn´t working. I´m also unable to set up the libusb filter. What can I do? I bought this just a week ago, so I think I can still get my phone replaced with warranty, but I don´t really want to resort to that. What can I do?

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#2

Post: 2 by hovatek

(12-06-2022, 11:56 PM)KhoDialga Wrote:  Good day everyone, this morning I got stuck on a bootloop with my phone without being able to access neither fastboot nor recovery mode. I attempted to flash the default rom with SP Flash Tool and bypassing Mediatek´s authorization, but in the middle of flashing, the process got interrupted by an error. Now I´m out of the bootloop, but the phone won´t turn on. If it couldn´t get worse, whenever I connected the phone to my PC, it would fail to recognize the device and say that it isn´t working. I´m also unable to set up the libusb filter. What can I do? I bought this just a week ago, so I think I can still get my phone replaced with warranty, but I don´t really want to resort to that. What can I do?

Try hold Power + Volume down for 30 second then retry. If that fails, disconnect and reconnect the battery.
Refer to https://hovatek.com/forum/thread-808.html

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#3

Post: 3 by KhoDialga

(13-06-2022, 08:54 AM)hovatek Wrote:  Try hold Power + Volume down for 30 second then retry. If that fails, disconnect and reconnect the battery.
Refer to https://hovatek.com/forum/thread-808.html

Just tried to do the Power + Volume down solution and nothing happened. I tried connecting and disconnecting the battery yesterday, but a bunch of stripped screws were in the way.
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#4

Post: 4 by kelvinchinedu

Best way is to disconnect and reconnect the battery ?
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#5

Post: 5 by KhoDialga

(13-06-2022, 03:10 PM)kelvinchinedu Wrote:  Best way is to disconnect and reconnect the battery ?

I tried dissasembling the phone to remove the battery, but some stripped screws were in the way of the battery and I don't have the tools to remove them, so I'll wait before I can get them. On that note, how much time do you think it'll take to revive the phone via a wall charger? It has a 5000 mAh battery, so it will probably take a good while. Hopefully it takes less than a week, I started charing it last night and I just checked it and it hasn't turned on.
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#6

Post: 6 by hovatek

(14-06-2022, 01:08 AM)KhoDialga Wrote:  I tried dissasembling the phone to remove the battery, but some stripped screws were in the way of the battery and I don't have the tools to remove them, so I'll wait before I can get them. On that note, how much time do you think it'll take to revive the phone via a wall charger? It has a 5000 mAh battery, so it will probably take a good while. Hopefully it takes less than a week, I started charing it last night and I just checked it and it hasn't turned on.

Don't charge it. Just leave it for about 24 hours then retry flashing at 24-hour intervals

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#7

Post: 7 by KhoDialga

(14-06-2022, 08:37 AM)hovatek Wrote:  Don't charge it. Just leave it for about 24 hours then retry flashing at 24-hour intervals

I don't know how I would go by flashing it, since under Windows 11, it shows up a USB device not recognized error, and under Linux it doesn't even show up while running lsusb. Should I try just connecting it to different ports?
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#8

Post: 8 by Abdulakeem14

(14-06-2022, 01:06 PM)KhoDialga Wrote:  
(14-06-2022, 08:37 AM)hovatek Wrote:  Don't charge it. Just leave it for about 24 hours then retry flashing at 24-hour intervals

I don't know how I would go by flashing it, since under Windows 11, it shows up a USB device not recognized error, and under Linux it doesn't even show up while running lsusb. Should I try just connecting it to different ports?

Which is the reason why it's preferable to disconnect/reconnect the battery. Since you can't do that then leave for about 24 hours as said, retry flashing after that
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#9

Post: 9 by KhoDialga

(14-06-2022, 10:35 PM)Abdulakeem14 Wrote:  Which is the reason why it's preferable to disconnect/reconnect the battery. Since you can't do that then leave for about 24 hours as said, retry flashing after that

Okay I'll try that again. Just to be clear, do I need to have it connected to a PC or can it be connected to a wall?
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#10

Post: 10 by hovatek

(14-06-2022, 11:24 PM)KhoDialga Wrote:  Okay I'll try that again. Just to be clear, do I need to have it connected to a PC or can it be connected to a wall?

Wall preferably but don't leave it connected to power. Just leave it to drain, don't connect to charger

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