How to Unlock a Samsung Gratuit F490
- 1). Remove the back cover of your Samsung F490. Take out the battery and look for a sticker with the 15-digit IMEI number. If the sticker has more than 15 digits, jot down only the first 15 (without dots and dashes).
- 2). Find a company that provides passwords for locked phones. Some of these companies include GSM liberty, Cellf Services and Unlocking (see Resources).
- 3). Contact the company with your phone's IMEI number and the network in which you're locked.
- 4). Enter the email address where you would like to receive the unlock code.
- 5). Enter your PayPal ID and password. The websites also let you use a credit card.
- 6). Wait for the code to arrive by email in two to seven business days.
- 7). Power on your phone with an unaccepted SIM card and enter the unlock code when the phone asks for it.
Source...