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Xiaomi Redmi 9A - stock ROM bricks the device

hero79

.
21/7/21
1
1
42
Wroclaw
Hello
I've got hard times trying to make Redmi 9A work with custom ROM.

The device has unlocked bootloader with Hydra, it was originally locked with Mi Account, bricked and with no IMEIs.
I can flash ENG ROM and connect both to WiFi and telephony. WiFi does not show NVRAM Err.
On ENG ROM second IMEI number is correct, but the first one is a string of zeros. I assume, that's a normal on this state since Hydra reads both IMEI numbers correctly. I tried wiping both NVRAM and NVDATA, and writing imei with universal flashmode method in Hydra, which appears to give the most promising effects of all methods. META mode does not work at this device at all.

My main problem is that after flashing TWRP and custom ROM, WiFi doesn't work. I know that I should flash stock ROM instead of ENG rom before flashing, but here's the problem:
Whenever I try to flash stock rom through SP_Flashtool, Hydra or TWRP, all I get is bricked device with black screen. It's usually completely dark and unresponsive to button combinations, it just vibrates at the start, but sometimes it flashes boot animation for a fraction of second, and goes black afterwards.
As a sidenote I can add, that Hydra always warns me about the lack of synchronization on any operation (I tried running it with battery but that doesn't change anything). Hydra operations always succeed tho.
Could anyone help? I've spent hours trying to figure out how to bring this device back to life.
 

GSM-KIEV

.
.
31/3/14
419
54
47
Киев
Hello
I've got hard times trying to make Redmi 9A work with custom ROM.

The device has unlocked bootloader with Hydra, it was originally locked with Mi Account, bricked and with no IMEIs.
I can flash ENG ROM and connect both to WiFi and telephony. WiFi does not show NVRAM Err.
On ENG ROM second IMEI number is correct, but the first one is a string of zeros. I assume, that's a normal on this state since Hydra reads both IMEI numbers correctly. I tried wiping both NVRAM and NVDATA, and writing imei with universal flashmode method in Hydra, which appears to give the most promising effects of all methods. META mode does not work at this device at all.

My main problem is that after flashing TWRP and custom ROM, WiFi doesn't work. I know that I should flash stock ROM instead of ENG rom before flashing, but here's the problem:
Whenever I try to flash stock rom through SP_Flashtool, Hydra or TWRP, all I get is bricked device with black screen. It's usually completely dark and unresponsive to button combinations, it just vibrates at the start, but sometimes it flashes boot animation for a fraction of second, and goes black afterwards.
As a sidenote I can add, that Hydra always warns me about the lack of synchronization on any operation (I tried running it with battery but that doesn't change anything). Hydra operations always succeed tho.
Could anyone help? I've spent hours trying to figure out how to bring this device back to life.
МЕТА

Everything is here !
 
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Реакции: java
My main problem is that after flashing TWRP and custom ROM, WiFi doesn't work. I know that I should flash stock ROM instead of ENG rom before flashing, but here's the problem:
Whenever I try to flash stock rom through SP_Flashtool, Hydra or TWRP, all I get is bricked device with black screen
мои наработки по редми 9А (кто уже вникнул в установку кастома на него, думаю, разберется):

For english user:
you need flash stock boot.img with Flashtool. use same version FW. after that in TWRP (i used PBRP) flash magisk and patch this boot. if use PBRP, before flash magisk you need copy folder "tools" from PBRP zip to PBRP folder in internal storage. then in OS in magisk app you may install patch_volume_hotspot as magisk module. all files are on ****, redmi 9a. i flashed lineage-18.1-20211111-UNOFFICIAL-garden Before was stock V12.0.14.0.QCDRUXM
 
20/6/22
1
0
24
Karachi
Hello
I've got hard times trying to make Redmi 9A work with custom ROM.

The device has unlocked bootloader with Hydra, it was originally locked with Mi Account, bricked and with no IMEIs.
I can flash ENG ROM and connect both to WiFi and telephony. WiFi does not show NVRAM Err.
On ENG ROM second IMEI number is correct, but the first one is a string of zeros. I assume, that's a normal on this state since Hydra reads both IMEI numbers correctly. I tried wiping both NVRAM and NVDATA, and writing imei with universal flashmode method in Hydra, which appears to give the most promising effects of all methods. META mode does not work at this device at all.

My main problem is that after flashing TWRP and custom ROM, WiFi doesn't work. I know that I should flash stock ROM instead of ENG rom before flashing, but here's the problem:
Whenever I try to flash stock rom through SP_Flashtool, Hydra or TWRP, all I get is bricked device with black screen. It's usually completely dark and unresponsive to button combinations, it just vibrates at the start, but sometimes it flashes boot animation for a fraction of second, and goes black afterwards.
As a sidenote I can add, that Hydra always warns me about the lack of synchronization on any operation (I tried running it with battery but that doesn't change anything). Hydra operations always succeed tho.
Could anyone help? I've spent hours trying to figure out how to bring this device back to life.
How to unlock Redmi 9A or How to root it. anyone can help me
 
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