Battery problem ? Bootloop when battery unplugged, flash LED when plugged, fastboot ok - Xiaomi Mi A2 Lite Questions & Answers

Hello everybody,
I have a problem with my Xiaomi Mi A2 Lite (with bootloader unlocked but stock ROM) : I changed the screen and digitizer, the phone being okay after a repair and working for a few days. Then it stopped turning on when I press power button (the screen does not turn on). When I plug charger I have the white LED flashing but nothing (even after hours of charging with different chargers and USB cables). I can not go to fastboot by pressing power button down.
I disconnected the battery, the phone starts when plugged into charger but bootloops (with "Your device software can not be checked" and the fixed "android one unlocked" screen). When I replug battery in the bootloop stops and we get back to the black screen/flashing LED state.
I can go to fastboot mode when pressing volume down with battery disconnected, I tried flash_all from the official daisy_images package with no success. I also tried to fastboot boot to TWRP but I get a black screen (with bootloop if battery is unplugged).
I also tried QDL flashing of the official ROM using the guide on the forum, no success either.
I tried swapping the battery for a new one, still doesn't work.
When I dump fastboot vars I have amongst other "battery-soc-ok: no" (with and without battery plugged) and a reported battery voltage of 1000 with battery, 0 without.
I measured (with a voltmeter) the voltage between + and - pins of the battery I have 4.13V.
Would you have any idea of something to try ?
Thank you for your help,

any updates on this?, my unit is stock no reimage or what not but while charging one time it wouldnt turn on white LED flashing also but no display, so i let be , then after awhile i discovered it wont boot up, after several times trying ,i got to boot but went to be stuck on "android one unlocked" screen, i tried draining the battery same results , wtf is wrong with this phone now it works perfectly for the past 3-4 years

I swapped the motherboard and it worked again.

damn, where did you purchase your motherboard? and did it erase the files inside?

Related

[Q] TP2 restarting when loading, not flashing, not hard resseting

Hello, spec's!
I have following problem since august 2010:
After ordinyry ROM (not original) upgrade have usising phone several days, then switching off phone on night, on morning trying switch it on in vain. I've trying recharge akku through cable connected to phone, it charges half of minute then phone swithes on by self(seems like power button abridget but I've checked it with tester), starting showing T-Mobile logo "Stick together" then shows Windows logo then backlight fading then device restarts, so it happen infinite till battery fully goes empty. After that I've bought new battery with independent charger. I've recharging battery with external charger, after complete I placed battery in phone so same scenario with infinite restarting was happen.
Now on phone is installed original ROM and I can't install any other- in bootloader I can install only SPL's, but other ROM's not installs (flashing process freezes on 0%), also hard reset could not completes too- after loading phone in hard reset mode I push "volume up" but nothing hapens.
I haven't any ideas, somebody can help me? Thank you all.

[Q] Phone won't turn on! Vibrates and Green LED only

morning guys/gals,
last night i put my phone to charge, woke up this morning and turned on the screen and it said "no sim card detected, reboot device". Now when I rebooted the device all I get is 5 vibrates and the green led light stays on. Screen stays blank!!. I tried battery pull several times, tried vol-down + power but all I get is the vibration with the screen off and the led on.
When I hook my phone to the laptop I can't access it via fastboot/adb, it shows up as "Qualcomm CDMA Technologies MSM" with a yellow exclamation mark in the device manager. I tried forcing different drivers on it (e.g. adb composite, bootloader) but none let me access the device via cmd.
Now I got clockwork, running latest android revolution 2.0.8, device is radio-soff and eng-soff.
What am I to do now? Is there possibly a hardware fault? If I cant get to access to the device to restore it to stock, I'm going to struggle to get the device replaced, isnt it?
any help is very much appreciated!!!
What ROM were you running on it Prior to this happening?
was there any apps running in the background?
the Vol - + Power should get you into bootloader, if you cant get into bootloader I would be tempted to say fooked, and take it back to the shop as they wont be able to boot it either,, but thats the defeatist attitude...
lefty83 said:
morning guys/gals,
last night i put my phone to charge, woke up this morning and turned on the screen and it said "no sim card detected, reboot device". Now when I rebooted the device all I get is 5 vibrates and the green led light stays on. Screen stays blank!!. I tried battery pull several times, tried vol-down + power but all I get is the vibration with the screen off and the led on.
When I hook my phone to the laptop I can't access it via fastboot/adb, it shows up as "Qualcomm CDMA Technologies MSM" with a yellow exclamation mark in the device manager. I tried forcing different drivers on it (e.g. adb composite, bootloader) but none let me access the device via cmd.
Now I got clockwork, running latest android revolution 2.0.8, device is radio-soff and eng-soff.
What am I to do now? Is there possibly a hardware fault? If I cant get to access to the device to restore it to stock, I'm going to struggle to get the device replaced, isnt it?
any help is very much appreciated!!!
Click to expand...
Click to collapse
it sounds like a h/w fault, i had a simlar problem on my classic desire, turned out it was the 3rd party battery i bought that was at fault, yours sounds diffrent though hope you sort it out
darkenedhammer said:
What ROM were you running on it Prior to this happening?
was there any apps running in the background?
the Vol - + Power should get you into bootloader, if you cant get into bootloader I would be tempted to say fooked, and take it back to the shop as they wont be able to boot it either,, but thats the defeatist attitude...
Click to expand...
Click to collapse
ok very strange, I was playing i around with the phone, now if I pull the battery and connect it to the usb cable the light went red instead of green and it automatically booted in clockworkmod (thanks to the "bug"). vol down + power didnt get me there so once I was in clockwork I thought let me wipe battery stats (eventho I wiped them when rom was freshly installed). I thought the device is unplugged but the green light stays on (after full charge), maybe battery issue. Now after wiping battery stats I'm able to boot the device again.
Thats weird but hey atleast my device is back on track. Either faulty battery or some software bug, either way if anyone experiences a similar issues (phone wont boot, just vibrates 5 times and green led), just pull battery, connect phone to usb cable on your laptop or wallcharge and clockwork should boot up, wipe battery stats and u should be fine
You gotta love that ClockWorkMod recovery image
Hi
I had the same issue yesterday. After one hour of stress(I have DHD for 4 days), I finally find out solution which worked for me:
1.) pull out the battery from phone for at least 10 minutes.
2.) connect phone to the charger.
3.) pull battery to the phone and wait
4.) after orange light recovery should boot up.
5.) wipe battery stat.
6.) enjoy your phone again.
Hope this will help to somebody .
May I know why such incident occured?
thermoska said:
Hi
I had the same issue yesterday. After one hour of stress(I have DHD for 4 days), I finally find out solution which worked for me:
1.) pull out the battery from phone for at least 10 minutes.
2.) connect phone to the charger.
3.) pull battery to the phone and wait
4.) after orange light recovery should boot up.
5.) wipe battery stat.
6.) enjoy your phone again.
Hope this will help to somebody .
Click to expand...
Click to collapse
my phone doese not turn on, when i press the volume - with power button, green light blinks. would not go in to recovery mode. when only power button is pressed it vibrates three times and amber light flashes.
please help
ray00136 said:
my phone doese not turn on, when i press the volume - with power button, green light blinks. would not go in to recovery mode. when only power button is pressed it vibrates three times and amber light flashes.
please help
Click to expand...
Click to collapse
Having the same problem and wiping battery stats isn't working for me! See here for more info on my problem!
thermoska said:
Hi
I had the same issue yesterday. After one hour of stress(I have DHD for 4 days), I finally find out solution which worked for me:
1.) pull out the battery from phone for at least 10 minutes.
2.) connect phone to the charger.
3.) pull battery to the phone and wait
4.) after orange light recovery should boot up.
5.) wipe battery stat.
6.) enjoy your phone again.
Hope this will help to somebody .
Click to expand...
Click to collapse
Thanks for your reply! this worked for me, allmost.
I did however had to press the Power button ONCE to start the phone.
- Plugged in charger, pulled in battery, (orange light was turned), then after 25 sec I pressed the Power button - and Voila! My Phone started as normal.
I diden't need to do any "Wipe battery status", but after reading about it I did it anyway. It was'nt necessery though in my case.
THanks a lot you guys for your replys! I thought for sure my phone was dead.
try sptool to format your phone except the boot loader then try to flash the phone, if its not working then change the mother board !!!!!

[Q] [Help] Defay dead - what could be the reason and how to rescue?

I've owned the DEFY for over two months, it is rooted but not flashed. Installed many apps and it had been working fine.
Today it suddenly go black when charging. Then, when pressing the power button, nothing happened. At first, when it was plugged into the PC USB port, the white LED was on. But later on, even the LED was always off.
Connected to PC via the USB cable, take the battery off and put it on again, the USB connecting and disconnecting sound was played on the PC. The Windows XP hardware manager briefly showed "Motorola USB device" and then it disappeared.
The screen is always black. Nothing seems to happen when pressing the power button, power+volume up, or power+volume down.
Please help!
I borrowed another DEFY and charged the battery to 100%. The problem persisted. The battery is good, for it can be used with the other DEFY.
Did you overclock your Defy? If yes, this might be your answer!
No. It has never been over-clocked. Just normal usage all the time.
If it can't even get to the recovery (hold volumn down) or bootloader (hold volumn up) screens, there's probably nothing can be done other than sending back for repair.
DEFY won't start after Flashing Chinese Froyo ROM
Hi,
I have the same problem: tried to flash Jboogie3 BlurlessGinger(2/16/2011).
Donwloaded the chinese rom from this thread: http://forum.xda-developers.com/showthread.php?t=895448
Flashed with RSD Lite: Result was "finished" and "PASS".
Pulled out the USB-Cable, LED light went off, but nothing happend.
Tried to reboot but no reaction from my DEFY. Even after pulling out the battery.
No Recovery Boot and no Bootloader Mode. :-(
Can anyone help please.
Thanky you in advance,
hartmuna
--------------------------
Hey guys,
luckily RSD was still able to connect to my DEFY even though it seemed dead. I reflashed the PL Froyo rom and it booted up smoothly. So be aware of the chinese rom!

Htc 816g Bricked and wouldn't connect to PC anymore. after installing recovery

Yesterday i attempted to install a custom recovery on HTC desire 816g. using fastboot command the process went fluently in fastboot mode but when i tried to open the recovery from hboot the screen got stuck at htc logo. After a while i gave up soft reset the phone using hardware buttons and since than the major problem began.
On restart the device screen turned blank as in didn't display anything and the red notification led stayed on. It stayed like this forever so i plugged in the charger and reset the phone again . Now it showed me just the battery icon with charging sign in the middle with no signs of how much it is getting charged or how much it is charged. It just stuck on the charging on and of course the red notification led continuously turned on. when unplugged and restarted it again stayed blank with red led on forever. SO i thought if its a mtk chip i would just reset the device by inserting the stock rom using sp flash tool. So i reset my phone where the led turns of for a second and turns i believe which is resetting it and connected the usb and nothing. windows does not simply detect the HTC anymore. SO i opened the device manager to see if it at least shows up as an unknown device in it but nothing. It simply does not show up. I have tried everything. restarting it connecting the usb unplugging the usb before restart on restart after restart all possible combination nothing works. But the led keeps strongly flashing red. So i thought its the battery problem. I kept it as is with red light flashing it discharged on its own and now when i attempted to start it the red led was blinking now. So i put it on charging overnight. And after all efforts its still the same. I need your help the most. Cant loose a phone now. Is it permanently bricked?

Z1C Overheating - unable to boot / charge

Hi guys,
I have been "gifted" by broken Xperia Z1C and I'm trying to fix it.
The issue is that when I try to power on, it's trying to boot, but it will turn off during blue animation, not sure if it's boot logo. However, when I try to charge the phone, it will show
"Your device turned off due to overheating. Charging will continue after the device has cooled down." and as you supposed, it will never happened.
I have tried:
- hard reset by volup + power button
- reset with red button near sim card
- xperia companion repair - result: successfully repaired, but nothing happend to device
- flashing older firmware D5503_14.5.A.0.270_Generic BAL.ftf using Flashtool - successfully but nothing happened
- some magic commands with fastboot.exe, nothing happened
Then I have tried to change battery from another Z1C, device is not responding on power on button (just 3 times red led blinks after charger connected) . Then I have put back the original battery to broken device, same overheating issue.
Now I think it's hardware issue, or do you have any ideas? Why another battery don't works?
Thanks

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