mkuu jinsi ya kupandisha sio ishu utahitaji software inayoitwa kies kwenye desktop/laptop yako then utaconect simu na hio desktop/laptop yako then hakikisha desktop/laptop yako ina internet then search for update.
Tatizo nahisi kama official update ya jelly bean kwa internetional user kama haijatoka naona ni kwa carrier dependent tu
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