A lot of minor issues regarding the handset could be solved through restoring of the factory settings. Go to Settings-privacy-Factory data reset, select "Reset Phone" and click the pop-up icon "Erase everything". The reset process takes about one minute and after that the handset will be restarted and stop on an English interface. Pull out the battery directly and reinstall it to turn on the handset
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A lot of minor issues regarding the handset could be solved through restoring of the
factory settings. Go to Settings-privacy-Factory data reset, select "Reset Phone" and click the pop-up icon "Erase everything". The reset process takes about one minute and after that the handset will be restarted and stop on an English interface. Pull out the battery directly and reinstall it to turn on the handset