Change Firmware

Hello guys, i wanna ask
is it okay to change firmware 4.x.xU to 4.x.xA or I ?

how can i change it? just download then click it or why?

thanks before :)


@juju read the F.a.Q.
To all but “I” you may change as it’s described in the F.A.Q.

If you want the international firmware, you may find a guide in the General Section.
But having the “I” firmware on Chinese phone has draw backs, as described in the guide.

My recommendation is, unless you want a specific language, that’s missing in “A”, stick to the " A" firmware.

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