You should consider a hard reset for the MT11i in the following scenarios:
Sony Ericsson MT11i Hard Reset – Factory Reset Without Password (2 Methods)
Solution: This is a corrupted system file. You must reflash the stock firmware using Sony PC Companion (Sony’s official repair tool) or Flashtool (third-party). This is beyond a hard reset.
Before we dive into the steps, it is crucial to understand what a hard reset actually does.
A hard reset restores your Sony Ericsson MT11i to the exact state it was in when it left the factory. It wipes all user data from the internal memory, including:
What a hard reset does NOT fix:
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