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one time was that the signal bar is max, but i couldn't dial nor anyone can call me for a whole day
if i turn off the phone, the screen is off, but the lcd outside remains on, i had to take the battery out to turn it off
once i turned it back on, everything was ok
then a few time the signal was OUT, if i set it to offline mode, then online mode, there's signal again (it happened at office and on the street)
is there anything i can do? i tried master reset, but the problem just comes back once in a while
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