mi3 won't boot up - Mi 3 Q&A, Help & Troubleshooting

I can't boot up to OS since i charged my battery full and automatically turn off,any solutions about that the notifications light not working,i can't even access recovery mode and fastboot,even can't even charge the battery
used OS: LineageOS 14.1(7.1.1 Nougat)

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[Q] blinking backlight (dead phone?)

Somebody give me some hope please. I was minding my own bidness when I (like a dumbass?) ran my battery down too low. At 5%, it shutdown and I plugged it in to charge. I'd done this several times before without any problem. The reported battery percentages had been way off recently and I was hoping to "retrain" android to report it more accurately.
Now it won't boot/post. I can get it into download mode, emergency dload mode (ARM9 mode), or ramdump mode. Any other mode (recovery for example only results in it just blinking the backlight on and off about once every second. The battery charges fine.
It is a Galaxy Ace (GT-S5830). I am able to flash it with odin. I used the following firmware package. S5830BGKT4_S5830XECKT4_S5830XWKT8_HOME
Is there another procedure I should try?
serial: R21C14GH79V
ssn: S5830GSMH

I9305 bootloop - stock rom no root

Hello,
My friend just brought me a I9305 lte version and it has a bootloop. I was looking for any help via many forums but most of the problems are caused by software modification problems. This phone was never modified, it had stock rom and was never rooted. Phone hanged while writing and sms and it turned of and started to bootloop.
1. Battery was removed for few hours
2. Phone was bootlooping till battery completely charged off.
3. I can't access recovery mode
4. I can access download mode for few seconds and after that phone restarts again(can't press volume up to acknowledge entering download mode only first screen appears for 2-3 seconds)
5. I can enter download mode by only holding menu + volume down.
Phone was in servce and they told that this is due to CPU issue and wanted to charge them for around 180$
6. I do not know what system version it had before.
Any ideas how to unbrick it?
If you are not able to stay in Download mode, then I would also suggest a hardware issue. Especially if no tampering has been done to the phone.
Does the phone get very hot ? such as rebooting due to overheating ?

[Q] restart only possible via USB cable.

My S3 mini GT-I8190, Android 4.1.2 might be broken. It felt into water. After three days of drying it I could restart it again. Here is the problem : When I shutdown the cell phone and try to switch it on it always runs into the android recovery mode. When I select reboot then it boots again into the android recovery mode. When I take off the battery and put the battery back and plug in via USB the power supply or do re chargung via PC then when I swith on the cell phone it starts normally. I re charged completly the battery. But no change in the behaviour. I tried to reset to factory mode via the android recovery mode. But the same behaviour. Any ideas ?

[HELP REQUIRED] Bricked Honor 4x

I was using the latest "release" of MOKEE custom ROM & today my phone automatically goes blank. I tried restarting it by holding the power button for 10 seconds but it is showing only boot logo & then completely blank. It is not switched off because only force restart is working. I tried to go to recovery but it is also blank. It is also not charging but it is charging only when battery is critically low. Only I can enter in 'Fastboot & Rescue Mode'. I tried flashing android stock rom emui 4.1 but it is still blank. Please help.. :crying:

After wiping all the data and cache etc. my phone suddenly stops charging

After wiping all the data and cache etc. my phone suddenly stops charging and got stuck to 4%. But I am able to boot into twrp recovery mode and while using recovery mode battery goes down to 3%. I have connected the charger to the phone but no led light is showing up nor TWRP is showing + sign after battery percentage. What should I do, please help?

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