Hello,
Was until recently one happy owner of an Acer Liquid Gallant E350 [dual sim].
From 2/3 weeks, the operating system is collapsing.
After startup, the mobile phone is terribly slow.
Whenever I turn on the internet data, all applications [Android system] start to crash, and stays completely inoperable.
I tried to remove some applications (which could be compromising the system), but amazingly after I remove the apps and restart the smartphone, the applications are still there!
- I've tried to through the "Settings >> factory reset without backup" and... nothing everything the same.
- I've tried "POWER + VOL UP" >> "Wipe data / factory reset" + "wipe cache partition" and everything remains the same!
- I've tried downloading the Stock Rom [OS_Acer_AV041.E350.1.000.22.WW.GEN1_A40I_A.zip] and through the Android system recovery, "Apply update from sdcard, appears an error" Signature verification failed "
Please, someone with a hint or could indicate how I can get this mobile phone to work properly or do a hard reset?