Samsung Chat 350 C3500 hard reset
Use this method to hard reset your Samsung Chat 350 gt-s3350 phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.
When your gt S3350 phone has frozen, take out battery, reinsert it, then power on your phone.
If you know the hard reset using buttons / keys, pls leave a comment. All comments are welcome! :)