Develop Bugs

Phone Will Not Boot When Charging (CM & Derivatives)

When I power off my phone with it plugged in to either an AC or USB power supply, the battery icon appears but the loading circle just remains on the screen indefinitely and the battery charge level never appears. Seemingly related to this, if I try to boot up the phone by holding down the power button then the screen just goes blank followed by the battery icon with the loading circle reappearing. Even if I pull out the power supply, the battery icon and loading circle remains on the screen and the phone still won't boot.
Thus the only ways to boot the phone once the power supply has been plugged in is to:
a) Remove the battery and replace it
b) Boot into download mode and select reboot at the warning screen
c) Boot into recovery mode and select reboot
As stated in the title, it only applies to CM nightlies and derivatives. If I flash back to stock firmware the problem doesn't happen anymore. I was wondering if anyone else is experiencing this and if there is any solution or workaround whilst still remaining with a CM based ROM.

I have the same problem with my Note 2. I unplug the charger, hold down the power button for a few seconds until the battery icon goes away. Then I hold down the power button again until it boots. Then I plug the charger back in.

d
its rare

Apologies for originally posting this thread in the general section.
hacktock said:
I have the same problem with my Note 2. I unplug the charger, hold down the power button for a few seconds until the battery icon goes away. Then I hold down the power button again until it boots. Then I plug the charger back in.
Click to expand...
Click to collapse
Ok thanks yeah that works for me too. I think its probably a kernel issue seeing as download mode (bootloader), recovery mode (different kernel) and stock firmware (different kernel) all boot OK. Unfortunately Cyanogen don't accept bug reports for CM nightlies, even when there is no other version available.

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

GT-P5210 - only download mode, not charging

Hello!
I have a Samsung Tab 3 10.1 (GT-P5210), that is fully stock nothing happened. When trying to boot it up or put it into recovery mode - nothing happends. I can't get the Samsung logo to appear or anything. At first I thought the LCD was broke but when I put it in download mode the screen shows me everything going on.
I can't charge battery - input power: 5.1-5.2V and 0.00A.
So I can only put in download mode.
I tried reconnect battery cable, but without any effect.
What's wrong?

I,having same thing, i kept pushing button combos and plugging it in until it just starts charging. Took a few times. Get it to 100%full before you flash amything on tis device

Samsung Galaxy J6+ flashing crash - Boot loop endlessly

Hello,
I have a problem with my phone : Samsung J6+ (SM-J610FN/DS)
I have crached a flashing Rom with Odin and I'm sure it is because of that my phone can't start by pressing the power button.
Now my phone has the message : An error has occurred while updating the device software. Use the emergency recovery function in the smart switch PC software ...
The thing is that it is rebooting and looping without end every 2 seconds on that green screen with that message ...
Only thing I can do is, with the USB cable connected, when the green screen is up, I can push VOL down + VOL up and I can go in download mode.... Then I can push on VOL up but right after the phone reboot in loop again and again ...
Another thing is that without USB cable connected I can't start the phone.
What can I do ?
First thing, I can't start my phone if it's not connected with the USB cable.
Second thing, when I connect my phone with the USB cable, it starts automaticaly even if I didn't push the power button and it's looping and blinking and rebooting endlessly.
Also the phone don't seems to know how charging himself when USB cable connected.
Is it a Bricked samsung phone ?
If it is, how unbrick it ?

Bro, its just discharged when you flashed it

Help Please
User said:
Bro, its just discharged when you flashed it
Click to expand...
Click to collapse
I am getting same issue but each time its on charge it reboots and I can see the screen getting laggier ! And its 3 hour in charge and It still persisits. So should I charge it overnight while its still in boot loop?
---------- Post added at 06:40 PM ---------- Previous post was at 06:35 PM ----------
iddik said:
Hello,
I have a problem with my phone : Samsung J6+ (SM-J610FN/DS)
I have crached a flashing Rom with Odin and I'm sure it is because of that my phone can't start by pressing the power button.
Now my phone has the message : An error has occurred while updating the device software. Use the emergency recovery function in the smart switch PC software ...
The thing is that it is rebooting and looping without end every 2 seconds on that green screen with that message ...
Only thing I can do is, with the USB cable connected, when the green screen is up, I can push VOL down + VOL up and I can go in download mode.... Then I can push on VOL up but right after the phone reboot in loop again and again ...
Another thing is that without USB cable connected I can't start the phone.
What can I do ?
First thing, I can't start my phone if it's not connected with the USB cable.
Second thing, when I connect my phone with the USB cable, it starts automaticaly even if I didn't push the power button and it's looping and blinking and rebooting endlessly.
Also the phone don't seems to know how charging himself when USB cable connected.
Is it a Bricked samsung phone ?
If it is, how unbrick it ?
Click to expand...
Click to collapse
Did you fix the issue? please Help me if you did. I am getting same issue right now on my moms fone same brand j610f please do help.

Hello, I got the same problem. This happen because the battery is empty and the only way to charge again is open the phone and extract the battery to charged it with a external power supply

I recently tried to install a custom ROM in my samsung j6+ but halfway through it my PC turned off.
Then the problem starts i decided to reboot my phone but it shows this error "No command" " #Reboot recovery cause is [[check_bootmode]RebootRecoveryWithKey]#
Block-based OTA
Supported API: 3
# MANUAL MODE v1.0.0#
E:Failed to mount / cache: Invalid argument
The error message keeps appearing for just a fraction of a second then disappear and appear again
I tried to go to recovery mode but no luck i cant get to it
I drained the battery to turn off the device then go download mode but after get to it, it also keep restarting
help me please. thank you

iddik said:
Hello,
I have a problem with my phone : Samsung J6+ (SM-J610FN/DS)
I have crached a flashing Rom with Odin and I'm sure it is because of that my phone can't start by pressing the power button.
Now my phone has the message : An error has occurred while updating the device software. Use the emergency recovery function in the smart switch PC software ...
The thing is that it is rebooting and looping without end every 2 seconds on that green screen with that message ...
Only thing I can do is, with the USB cable connected, when the green screen is up, I can push VOL down + VOL up and I can go in download mode.... Then I can push on VOL up but right after the phone reboot in loop again and again ...
Another thing is that without USB cable connected I can't start the phone.
What can I do ?
First thing, I can't start my phone if it's not connected with the USB cable.
Second thing, when I connect my phone with the USB cable, it starts automaticaly even if I didn't push the power button and it's looping and blinking and rebooting endlessly.
Also the phone don't seems to know how charging himself when USB cable connected.
Is it a Bricked samsung phone ?
If it is, how unbrick it ?
Click to expand...
Click to collapse
Have you got the issue fixed on you phone?

Since you can reach download mode - why not doing a clean flash with the correct firmware?

Battery problem ? Bootloop when battery unplugged, flash LED when plugged, fastboot ok

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?