Touch Screen Bottom part stop workin Suddenly

1265

3

2017-09-07 02:08

This morning bottom part of touch screen stop working.
It's very strange.Just the bottom section (where usually menu icon are).

Firmware is 6.4.... (i don't remember exactly).

The phone is 6 months old. No previous issues.
I've already tried to restore the phone, clearing everything and
even to downgrade to firmware 5... (stable).

Nothing worked.

Anybody is experiencing something similar?