Sony xperia z4. help needed

my z4 keeps switching itself off nikiwasha data especialy when battery % is below 60
battery ni ya kujiekea as you know zinakuanga na inbuilt battery.
yenye niliekewa iko poa tulitest na phone ingine na haukuzimika.
What could be wrong with this Z4?.. help a brother

Mtu Wa SQNY unaitwa…

I had the same problem a while back nliship batt from ebay uk nka replace it worked fine untill reboots came when turning on data nlipitia xda hdi nkachoka no solution then i downloaded a .tft file nka reflash to stock magically it worked for me. xperia Z3+

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Sony mobiles hukuwa na special power ic that identifies original batteries and chargers. just get an original battery ata charger haitumiangi zingine must be original Sony accessories

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flash firmware ingine

Hakuna make kama Z4. Tuanzie apo. But kuna Z3+

The Sony ferker

Sounds applicable.I’ll try

Might be the case here

boss there is no sony Z4 only Z3+ but the one you’re referring to naijua. just hard reset it na itajiita android n all you problems with “Z4” will phwiii’… disappear

in some markets z3+ is sold as z4

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