I have got a problem with my samsung galaxy nexus stock version,
without root or unlocked bootloader.
The problem is about the 3g connection and wifi when I turn off the display.
3g: when I turn off the display, after a few minutes, the phone loses the data connection. It is like it goes in power saving mode because when I
turn on the display the signal icon turns grey and after a few instants blu. In fact mail, notifications, and whatsapp's messages are notified with
a 10-15 minutes delay.
wifi: same problem, when I turn off the display I lose the signal. When I turn on the display, the wifi icon disappear for an instant, become grey and then blue. Until it turns blue I don't get notifications.
I have already done several factory resets, disabled power saving settings
and I don't use any power management apps.
SMS and calls works fine.
help me please