Unlock Sony F5121

Unlock Your Sony F5121 Easily & Safely

How to unlock Sony F5121 by code

Unlock Sony F5121 fast and secure by code so you can use it with the network of your choice. You didn't have to run any complicated software or need any technical expertise. Also your phone will be permanently unlocked even after firmware updates and you don't loose your warranty. To get the code to unlock Sony F5121 you need to provide IMEI number. To get the IMEI number dial *#06# on your keypad or look at the sticker behind the battery of your Sony F5121. Your IMEI number may be 15 or 17 digits long but we need only first 15 digits of your IMEI number.

Depending on the locked network of your Sony F5121 you may get the following codes:

NCK Code
CCK Code

Important Note: Please make sure your Sony F5121 is not HardLocked means you have enough attempts left to enter the unlock code. To check whether your Sony F5121 is HardLocked or not, follow the instructions below:

  1. Press *#*#7378423#*#* to access the service menu
  2. Select the Service info
  3. Select the Simlock
  4. You will see a menu as example below


[X] Network 10 <== This means you have 10 attempts left to enter the code.
[ ] Network Subset 10
[ ] Service Provider 10
[ ] Corporate 10
[ ] SIM 0

If it shows [ ] rather than [x] for all the boxes above, it means your phone is fully unlocked.

If it shows [X] Network 0, it means you have 0 attempts left to enter the code and your phone is hardlocked.

Instructions to unlock Sony F5121

Once you get the unlock code for Sony F5121 you can enter it by using the following instructions:

  1. Insert a non-accepted sim card (the sim card which is not supported by your phone)
  2. Your phone prompts to enter Sim Network Unlock Pin or Unlock Code
  3. Then Enter NCK or Network code and confirm
  4. Your Sony F5121 is now unlocked

Device Information »

Check your Sony F5121 unlock code price and availability by providing the details below.

Important: Select the Current Network of your Sony F5121. Do NOT select the network you want to use.

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