Xiaomi mi 9T don't turn on - Redmi K20 / Xiaomi Mi 9T Questions & Answers

Hello, I bought a xiaomi mi 9T. After unlocking the Bootloader and trying to flash it, my phone doesn't turn on anymore, and I don't have access to fastboot mode or recovery mode. And I would like to fix it.

That's a hardware problem with main board for 99%
Try different cable and charger

I try with all cables that I have but nothing happened! I most change motherboard?

Related

Redmi 2 Prime Bricked!!

When I connect my Redmi phone to the charger I just se mi logo flashing again and again I tried to fastboot the ROM and it was done successfully but still problem persists. Whenever I turn on my phone there is just only mi logo nothing else.
which flashing tool or fast boot firmware you using? and have you tried flashing wihout simcards? happend once with me, give me some details and hopefully we can find a solution.

My journey: Looking for an authentic MI A1 battery

Hello,
I was trying to install GCam on my Xiaomi MI A1 with the last August patch and I don't know if it's a coincidence but my phone didn't want to turn on afterwards, it turns on only with the charger connected, if you disconnect the charger turns off instantly. I thought it was a software problem and my phone was bricked so I installed Android 7 with the MiFlash tool and I couldn't turn it on either, then I tried updating Oreo with MiFlash using another fastboot image and nothing, after trying all this thinking it was a software problem, my phone is still in a kind of bootloop where it just presents the "Mi" logo and restarts again and again unless it is connected to the power.
A friend also has a Mi A1 so I put his battery in my phone and turned on, so it's a hardware problem, apparently the battery, I searched the internet and I couldn't get an original, could you help me with a link?
https://www.aliexpress.com/item/TMI...icker-For-Xiaomi-Mi-A1-Redmi/32844201974.html

some help to unbrick

hi, cause of my work (pc and smartphone engineer) i fix only hardware. But there are some very rare cases that some people trust their phone to me to unbrick it when nobody else here at my town can.
So now i have to fix a xiaomi mi a1 which is hard bricked and the customer didn't allow bootloader unlock in developer settings.
It doesn't boot and so it doesn't allow me to fix it in bootloader mode (not allowed to flash partitions).
In EDL mode i get errors too.
What i need is some guidance how i can fix that xiaomi and any xiaomi when that happens.
Let's start with mi a1 now.
Which mode should i use ? (i guess EDL)
And which stock rom ?
Nevermind I fixed it on my own. Booted to edl and flashed all the partitions there.

Redmi 9T can't boot, only shows battery charging screen. PLEASE HELP ME!!!

So earlier, I unlocked my Redmi 9T phone using the Xiaomi Official Tool, then flashed TWRP using XiaoMiTool V2, I opened cmd and entered fastboot reboot recovery, it's still in fastboot mode, I tried Power button + volume buttons and still stuck on fastboot and before it boots into fastboot again, it shows a charging battery icon. I plugged in my phone to my pc and selected "My phone is bricked" in XiaoMiTool V2 and waited for 1 hour to finish the download, it tries to install but when it gave me an error, I closed it and tried to reboot my phone, NOW IT'S SHOWING A CHARGING BATTERY ICON AND CAN'T DO ANYTHING! I keep turning on my phone but it only shows the battery and turns itself off quick. PC/ADB can't detect any, can't boot into fastboot, can't boot into system, can't boot into recovery. Please help me, I'm gonna get in BIG trouble. Please help me... Thanks!
Schon Villamor said:
So earlier, I unlocked my Redmi 9T phone using the Xiaomi Official Tool, then flashed TWRP using XiaoMiTool V2, I opened cmd and entered fastboot reboot recovery, it's still in fastboot mode, I tried Power button + volume buttons and still stuck on fastboot and before it boots into fastboot again, it shows a charging battery icon. I plugged in my phone to my pc and selected "My phone is bricked" in XiaoMiTool V2 and waited for 1 hour to finish the download, it tries to install but when it gave me an error, I closed it and tried to reboot my phone, NOW IT'S SHOWING A CHARGING BATTERY ICON AND CAN'T DO ANYTHING! I keep turning on my phone but it only shows the battery and turns itself off quick. PC/ADB can't detect any, can't boot into fastboot, can't boot into system, can't boot into recovery. Please help me, I'm gonna get in BIG trouble. Please help me... Thanks!
Click to expand...
Click to collapse
You have missed the subforum:
This is here for Mi 9T /Redmi K20
You are asking about Redmi 9T
That's totally different name, phone model, hardware, Android version.
After all, your phone model is about two years newer than our Mi 9T here
Specially you made a big mistake if you maybe downloaded and flashed the TWRP for Mi 9T/Redmi K20 to your Redmi 9T, and bricked your phone
One needs to be careful about the phone models!!!
zgfg said:
You have missed the subforum:
This is here for Mi 9T /Redmi K20
You are asking about Redmi 9T
That's totally different name, phone model, hardware, Android version.
After all, your phone model is about two years newer than our Mi 9T here
Specially you made a big mistake if you maybe downloaded and flashed the TWRP for Mi 9T/Redmi K20 to your Redmi 9T, and bricked your phone
One needs to be careful about the phone models!!!
Click to expand...
Click to collapse
I apologize, I did not know that they're different, but how can I fix this?
Schon Villamor said:
I apologize, I did not know that they're different, but how can I fix this?
Click to expand...
Click to collapse
Generally, you should be able to fix by flashing the stock firmware via MiFlash again
But if you also locked your Bootloader by using the MiFlash last time, you will not be able to flash anything and you will need to seek around for the paid EDL support
Better ask on the XDA (sub)forum for your Redmi 9T:
Redmi 9 Power / 9T
The Redmi 9 Power is a 6.53" phone with a 1080x2340p resolution display. The Qualcomm SM6115 Snapdragon 662 chipset is paired with 4GB of RAM and 65/128GB of storage. The main camera is 48+8+2+2MP and the selfie camera is 8MP. The battery has a 6000mAh capacity.
forum.xda-developers.com
zgfg said:
zgfg said:
Generally, you should be able to fix by flashing the stock firmware via m
zgfg said:
Generally, you should be able to fix by flashing the stock firmware via MiFlash again
But if you also locked your Bootloader by using the MiFlash last time, you will not be able to flash anything and you will need to seek around for the paid EDL support
Better ask on the XDA (sub)forum for your Redmi 9T:
Redmi 9 Power / 9T
The Redmi 9 Power is a 6.53" phone with a 1080x2340p resolution display. The Qualcomm SM6115 Snapdragon 662 chipset is paired with 4GB of RAM and 65/128GB of storage. The main camera is 48+8+2+2MP and the selfie camera is 8MP. The battery has a 6000mAh capacity.
forum.xda-developers.com
Click to expand...
Click to collapse
How can I flash when my phone can't boot into fastboot? Can't boot into anything, it just shows the battery charge screen when I turn it on (even without plugging it in a charger). I have my bootloader unlocked
Click to expand...
Click to collapse
Click to expand...
Click to collapse
But you can ask in the right XDA subforum for your phone - where somebody familiar with your device could help you, or you cannot (or you don't want)?!
If you hard bricked your phone then you will need to find somebody to help you with the paid EDL account - usually they cannot advertise on XDA since advertising the paid support is forbidden. You should seek around on TG channels and so
That was the last my answer for you. Cannot help you better for your different phone. Good luck

Redmi 7A won't turn on, but windows see a File-Stor gadget or an MTP Device

I had a Redmi 7A and changed for a Redmi 9T. I let the Redmi 7A alone for a long time, and today I took it, but it won't boot. Not only that, but I tried a lot of things like booting into EDL mode, booting into fastboot, disconnecting the battery… But as far as I am, I always get a black screen and ADB or my computer don't recognize it as a phone. I would like to use it to try to install custom ROMs without risking to brick my main phone.

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