Unlocking a Samsung i5510 is possible with a SIM card version of the smartphone. Samsung i5510 unlocked phones will work on any SIM card based phone network, such as AT&T, T-Mobile and Sprint PCS. In order to fully unlock your Samsung i5510 you will need to an unlock code. This unlock code will remove the SIM lock that comes on many SIM based Samsung cell phones by default. Once this SIM lock is removed, you will be free to use your Samsung i5510 with any GSM or SIM card based mobile phone carrier you wish.
Getting an unlock code can be free often if you cann up your Samsung i5510 phone carrier’s support line. Request an unlock code and in exchange they will need your phone’s IMEI number, which on a Samsung i5510 you can simply get by typing *#06# and hitting send or enter on your keypad. Your Samsung i5510′s IMEI number is used to calculate your Samsung unlocking code. If you do not currently have a carrier or cannot get a free one, then I would suggest you review some of the unlock code websites I have provided later in this guide.
How To Unlock A Samsung i5510
Here are the steps to follow to unlock your Samsung i5510 to all GSM mobile phone carriers and networks:
1. Power on your Samsung mobile phone with an unaccepted SIM card inserted.
2. Your Samsung mobile will prompt you for a password (unlock code).
3. Enter your Samsung unlock code.
Otherwise, if your Samsung mobile phone displays “Insert Correct SIM Card” then:
1. Turn on your Samsung phone with an UNACCEPTED SIM card inserted.
2. Type: #7465625*638*CODE# (Where CODE is your Samsung unlock code.
Note: Although the Samsung i5510 is not currently released, these instructions will work assuming it is a SIM card version of the phone which appears to be so according to preliminary specifications.