Perfect 
It's a relatively simple process too.
It's a relatively simple process too.
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Can't Update System Software
- Thread starter Joey Golumpus
- Start date
lonyoi2804
Lurker
I cant update my zte a520 software system
Joey Golumpus
Newbie
I'm not totally sure, but it looks like that model of phone has only had one official version of system software. Are you running Android 7.0?