My GT-5570 hangs (freezes) randomly. This happens only when the mobile is in sleep mode. When I press the ON button to wake it up nothing happens.
In this hanged state, I tried the following:
1. Tried to call my (this hanged) mobile from another phone and the bell was going but no ringtone/vibration happened.
2. In a seperate time, I tried to connect to USB, My laptop detected the phone but didnt showed the folders. Also charging sign didnt showed up. The screen is simply dead.
To Fix it I have tried to hard reset the device by going through menu-> settings->privacy->Factory data reset. It did reduced the frequency to hangs to doesnt fix the issue.
Also I have updated it to the latest firmware: PDA:KC1 / PHONE:KC1 / CSC:KC1 (INU).
On a side note before the last upgrade, there used to be few random reboots but havnt seen any recently after upgrade.
Kindly reply if anybody is facing the same issue or has a resolution.
(I am weary of handing it over to customer support as they say it will take 10 days and I dont want my new mobile to get dirty