Charging only after reboot - Lenovo P2 Questions & Answers

I have strange problem with charging. When device is running and I plug a cable then it's not charging. But if I power in or reboot with plugged charger then everything is ok until I remove and plug in cable again. Then I must reboot device...
Also when phone is off and I plug a cable then it's charging ok.
I tried wipe all, restore system, even install new ROM from scratch. Always the same... Any idea?

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[Q] reboot stuck in a cycle unless usb cable is plugged in

I was using Cyanogenmod 10.1.3 for few months just fine but few days back it started doing random reboots. The reboot doesn't complete at all and goes in cycles until I connect a USB cable attached to PC or wall socket. It just boots fine with USB cable connected. Once fully booted, I can disconnect the USB cable and everything is fine (until there is another random reboot or I choose to reboot)
I went back to stock (4.1.2), and it has the same exact issues. A random reboot can take few hours to a day. Is it possible that my battery is acting? Does boot process require more juice at some point that the battery is unable to supply? Appreciate any help.
malahal said:
I was using Cyanogenmod 10.1.3 for few months just fine but few days back it started doing random reboots. The reboot doesn't complete at all and goes in cycles until I connect a USB cable attached to PC or wall socket. It just boots fine with USB cable connected. Once fully booted, I can disconnect the USB cable and everything is fine (until there is another random reboot or I choose to reboot)
I went back to stock (4.1.2), and it has the same exact issues. A random reboot can take few hours to a day. Is it possible that my battery is acting? Does boot process require more juice at some point that the battery is unable to supply? Appreciate any help.
Click to expand...
Click to collapse
The problem seems to be none other than your power button getting stuck. This is a very common problem with SGH-T989/D phones. Please follow the steps in the following link to get your phone working properly once again.
https://www.youtube.com/watch?v=pqBgbN8NLjI
Regards,
Xx Jafours xX

Gran Duos won't boot, restart on logo but works with usb recent flashed firmware

Hello guys, hope anybody here had this problem and was able to solve it.
I have a GT-I9082L from a friend here.
The phone won't boot, he was using the phone and suddenly it got crazy and started vibrate non stop.
When he tried to turn his phone on, it goes to the samsung initial logo (the one that display the model, at the very start), and reboot. It keeps doing this.
So I decided to flash the stock firmware via Odin, it was sucessful. The phone was working fine while it was with the usb plugged in (right after I flashed the FW).
When I unplugged the USB, the phone restarted and came back to the same problem.
I decided to flash again, same problem. It keeps running just fine but as soon as I remove the usb cable, the same thing happens, reboot and reboot.
I think the phone is not being able to keep the files in the internal storage. Somehow when I unplug the cable, it seems to erase all files inside.
Does anybody had the same problem? Or somthing similar?
What should I do?
Works on any power source
Guys, when I plug any power source it works. I think it is not being able to keep the energy from the battery. But the battery seems to work fine since when I plug it the battery icon shows as charging correctly.

Phone not charging or connecting to PC without recharge

My ZE551ML has recently stopped charging or connecting to my PC unless I first plug it into power and restart it or charge it when powered off. I've tried a factory reset which did nothing to fix the problem. Does anyone have any ideas?
Have you tried a hardware reset including wipe cache partition? http://www.asus.com/us/support/FAQ/1011956/
Do you have a different USB cable to test with?
Sincerely,
ASUS_USA
I've tried several cables as well as wiping the cache. Still the only thing that works is to restart the phone while it's plugged in

[Solved] Phone thinks USB is always connected

Update/Solution: After various reboots, factory resets and the original rom restore the problem mysteriously solved itself
Hi,
I have a massive problem.
The phone started thinking USB is connected, and always shows the "USB for charging" notification.
I need to turn it off, plug in usb, start it again to make it charge
And much worse: when I remove the USB, it keeps a wakelock, because it thinks USB is still connected.
running CM13 nighly built on the 16th.
Wiping cache did nothing
Edit: Factory reset did nothing either
I really hope you have some idea, else I have to factory reset and send it in for replacement
Thank you all

H815 TWN Charging, reboot and USB connect problems

Hi guys, a week ago my phone H815 TWN started to act very strange.
Symptoms are:
1. Charging very slow and when unplugged still shows charging sign. (Fixed when remove battery but reoccurs when charging again)
2. On power off the phone reboots does not power off.
3. When battery is removed and placed back the phone boots without pressing any buttons.
4. When connected to PC via USB and then disconnected the USB connect manager notification remains active. (The phone is recognized from the PC)
Things I tried to fix the problem (unsuccessfully)
1. Cleaning the USB charging port
2. Hard and soft reset the phone.
3. Took the battery out for more than 10 min
I suspect that it is a hardware problem, as next step I am thinking to flash the firmware.
Does anyone experienced the same problems or has any idea what might be wrong?

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