Display is black:
Check the battery status, charge the battery for 24hrs
or, if necessary, replace it (6 months warranty). Check
the background image.
Blocked PIN:
Check whether the PIN code was entered correctly. If
the PIN code has been entered incorrectly 3x, the SIM
card is locked and you will need the PUK code:
(Please contact your network operator for your PUK
code).
I do not hear the other caller
Check the volume settings.
Try restoring the factory settings.
Briefly remove the battery and restart the device
Note: If a specific problem could not be solved using
this information, please contact customer service at
www.beafon.com. Please do not try to repair the
phone yourself.