My phone hangs and i pull out battery again starts it then it not starts again ...........
SOURCE: Sony Ericsson z550i
Take it to its service center b'coz i cant help u without having it near me
SOURCE: how to format phone memory z550i
First of all backup ur every important thing.Switch off ur phone hold
*,3 and green call button at the same time and switch on ur
phone.problem resolved.
Regards,
Sandeep Singh
SOURCE: how can i format my sony ericsson z550i
best way, if there is no software problem like continuos on & off connect data cable then select data transfer mode and format it from your computer.
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