1. Backup all of your data to your laptop or cloud before performing any resets.
  2. Before resetting, remove your SIM card and any memory card. If possible, make sure the phone is charged to 100% so that the phone will be powered to complete the reset process.
  3. Follow the instructions below for your model of phone.  If your model is not listed please visit the BenQ-Simens website for further information.



Most models including:

Mseries includingM30 (2000)
Aseries includingA50 (2002)
S68 (2006)
ME75, S66
C series including C25

Phone off - hard reset

  • Turn the phone on.

  • Type in this code:*#9999#

  • The phone will restart.

From the menu

Go to Settings > Phone > Reset phone.



Phone off - hard reset

  • Locate the recess Reset at the bottom of the phone.

  • Press and hold Power button.

  • Insert the Stylus into the Reset recess.

  • Hold these in until the screen fades off.

  • Release when the screen has completely faded.


While we make every effort to ensure that the material and information on this website is accurate and up-to-date when published, it is general information intended as a guide only. Please keep in mind that you are responsible to ensure that any personal information has been erased from your mobile device. If needed, seek advice relevant to your mobile phone from the manufacturers.