My Galaxy Nexus goes into charging mode but when it isn't plugged in. The battery symbol then indicates a charging and when in suspend mode, the display turns on which drains battery rapidly. I am still able to actually charge the phone by attaching an usb cable.
The problem is largely discussed in http://forum.xda-developers.com/showthread.php?t=1427539 with different suggested solutions:
- send device to Samsung for repair
- use a custom ROM
- fully drain the battery and charge it over night
- replace USB port
- clean USB port
I guess it is an hardware problem. But before sending the device to Samsung (and beeing without phone for a while) I would rather like trying to clean the port or other "quick" solutions. Has anybody instructions to do so?