Your Nokia N139DL is now permanently unlocked and will automatically search for and connect to the new network. Troubleshooting Common Unlocking Issues 1. "Invalid SIM Card" or No Prompt Appears
You will need to provide your phone number, IMEI number (dial *#06# to find it), and email address.
These devices generally require 12 months of active service before becoming eligible for an unlock. Step-by-Step Instructions to Request an Unlock Code nokia n139dl unlock
Some newer units may unlock automatically after 60 days of active service without needing a manual code. 2. Bypassing a Screen Lock (Forgotten PIN)
If you do not meet the carrier's eligibility requirements—for example, if you bought the phone used, it was never activated, or you want to use it immediately without waiting 60 days—you may consider a third-party IMEI unlocking service. How Third-Party Unlocking Works Your Nokia N139DL is now permanently unlocked and
This usually means the code you entered is incorrect, or you have the wrong carrier selected for the unlocking service. Solution:
If you insert a foreign SIM card and the phone does not ask for a code, verify that the SIM card is pushed entirely into the slot and active. If it still doesn't prompt, the device firmware may be heavily restricted, or the device is already unlocked. These devices generally require 12 months of active
If you insert a foreign SIM card and the phone does not ask for a code, but instead says "Invalid SIM" or shows no signal bars:
Double-check that you entered the numbers correctly. If the official codes fail, verify that you provided the correct IMEI. Be cautious: entering an incorrect code too many times (typically 3 to 5 attempts) can permanently the phone, preventing it from ever being unlocked. 3. Network Compatibility Limits
: Enter the provided unlock code(s). Upon success, the screen should display a message like "SIM Restriction Off" . Resetting a Locked Screen
For networks like Rogers/Fido, use #pw+[Code]+7# instead. For T-Mobile USA, use +1 ; for TELUS/Bell, use +5 .