I have searched for a while now, and I think I need a little help form you guys...
A friend of mine got her phone locked because she had failed to enter the correct pattern several times. Unfortunately, there is no Internet connection enabled, so the gmail-verification doesn't work. The phone is not rooted, and USB debugging is not enabled. I thought I could solve it by putting some files on its sdcard, but there seems to be an internal sdcard partition (when I remove the physical sdcard, I still have a big list of files in Recovery Mode > apply update from sdcard...
Is wiping everything my last chance ?
The phone is a Samsung GT-S6802B.
Thank you for your answers