How To Unlock Cell Phones?

How do some cell phone service shops unlock phones in India?

• How do they do it?

• Answer:

  They do it through some software commands which are differ from model to model and carrier to carrier. For example if you need to unlock AT&T Galaxy S4 : Open the dialer. You will need to enter a code in the dialer to open the Service menu. Once the dialer is open, enter the following code: *#27663368378# Select [1]UMTS. After you enter the code, the phone will automatically open the ServiceMode menu. From here, select [1] UMTS. Open the Debug menu. In the UTMS menu, select [1] DEBUG SCREEN. In the Debug menu, select [6] PHONE CONTROL. In the Phone Control menu, select [6] NETWORK LOCK. Select [3] Perso SHA256 Off. When you select this option, you should receive the following displayed on your screen: SHA256_ENABLED_FLAG[1] SHA256_OFF => SHA256_ON Tap the first line. Select SHA256_ENABLED_FLAG[1] with your finger. The phone should display: MENU NOT EXIST PRESS BACK KEY In order to continue, press the menu button on your phone and select Back. Make sure that the settings changed correctly. When you back up, the message from Step 4 should now be displayed as: SHA256_ENABLED_FLAG[0] SHA256_OFF => Not Change Return to the UMTS menu. Press the menu button and select Back four times until you are back in the UMTS Main Menu. Select [6] COMMON and then select [6] NV REBUILD. The following message should be displayed: Golden-Backup exist You can Restore Cal/NV Restore the backup : In the NV REBUILD menu, select [4] Restore Back-up. The phone will automatically reboot. At this point the phone is unlocked. You can insert a SIM card from another carrier to use another service. for more visit : http://nothinggeek.com