Optimize your storage space for ZX551ML,ZE550ML,ZE551ML

FAQBotFAQBot admin
edited September 2020 in FAQ

If you often encounter full or insufficient storage in your phone , please upgrade your firmware to the latest version for supporting this feature and to optimize the internal storage in a  few seconds to the best condition and status. Please refer to(How to update firmware on my phone?).

Firmware edition: 

ZE550ML: V2.20.40.144(WW)

ZE551ML: V2.20.40.174(WW)/V2.20.40.174(JP)

ZX551ML: V2.26.40.52(WW)/V2.26.40.53(JP)/2.26.40.56(CN)

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