CHANGING SIM WITHOUT CODE

FOLLOW THE STEPS:

1 - put your new sim card inside the phone, but not totaly plugged (the phone don't see the sim and boot without)

2 - put the batterie on but leave a little space to push forward the sim at the end

3 - boot the phone, it will say 'no sim'

4 - push the sim with something slim (a knife ie)

5 - reset the phone with the hard reset code *2767*3855# 

additional step apply to the instructions above: when the phone prompt for a code, type 0000 first, optionally after that one the code of the simcard.

that's it. Don't let the phone turn off, or you will need to re-do the same tuto again.