1. Android Central Question's Avatar
    I have an Acer Z110 phone. When I select 'System upgrade' it always returns ' Service temporarily unavailable'. Is there any way round this problem?
    03-25-2018 04:57 AM
  2. RumoredNow's Avatar
    That phone is over 7 years old. It never went past Gingerbread. Likely the servers at Acer have stopped supporting the device and that would cause the error you see.


    If you need a higher version of Android, it looks like it is time for a new phone.
    03-25-2018 05:40 AM

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