mobile network and Wi-Fi are blocking The problem of my phone is, mobile network and also Wi-Fi connection are sometimes blocking. it happens randomly. On the screen, it shows everything is regular and there are connections, however, if I try to connect to network/Wi-Fi, it fails. The only solution is to restart the phone. Do you know what is the problem? I guess old rom....

My phone is Samsung Galaxy s II lite (AKA Samsung I9070 Galaxy S Advance).

Model number: GT-I9070

Baseband version: I9070BULK1

Android ver: 2.3.6

Kernel: 2.6.35.7-1211698

Build number: GINGERBREAD.BULK1
This issue happens for many models.

Let me say a simple scenario

You are in a call, suddenly the signal has gone and call drops. Then even waiting for a long time, the signal is not coming.

This is because, the phone didn't attempt to connect to a network anymore.

The solutions


Turn on airplane mode and after 5-10 seconds, turn off it.
Go to operator selection -> manual -> search and choose the operator, later change to automatic.
As you said, restart the phone.