Nokia N139dl Unlock High Quality Guide

To unlock your (also known as the Nokia 2760 Flip Go to product viewer dialog for this item.

Call Tracfone support. Ask them for the "Sim Network Unlock PIN." If you're eligible, they have to give it to you by law. nokia n139dl unlock

Using a "Bad IMEI" check: If your phone’s IMEI is clean (not stolen), some free generator sites claim to work. Almost all are fake for Nokia models. Do not waste time.
Asking for an exception: Call the original carrier, explain hardship (traveling internationally, need to use local SIM). Some representatives have discretion to unlock early, but this is uncommon for prepaid Tracfone models.

Insert the original Tracfone SIM that came with the phone (or a Tracfone/Total/Straight Talk SIM that has been active in it for >60 days).
Connect to Wi-Fi (mandatory – the unlock app needs internet).
Open the app drawer and find "Device Unlock" (icon: padlock with a key). If missing, dial ##7820# (##UNLOCK#) on the keypad.
Tap "Request Unlock" > "Mobile Data" (or "Wi-Fi" if data fails).
The app will contact tfunlock.tracfone.com (visible if you sniff network traffic). Server response will be one of:
Critical warning for AT&T users:

AT&T maintains a whitelist of VoLTE-compatible devices. The N139DL is not on AT&T’s whitelist . If you insert an AT&T SIM, you may get LTE data but calls will fail (no 3G fallback). Use T-Mobile or a T-Mobile MVNO (Mint, US Mobile GSM) instead. Nokia N139DL Go to product viewer dialog for this item

Step 4: Enter the Code

Once you have the 8–20 digit unlock code: Using a "Bad IMEI" check: If your phone’s

Unlocking your Nokia N139DL gives you the freedom to choose your own carrier and save money on better plans. Always attempt the free carrier method first before paying for a third-party service.

If your SIM card specifically is locked (asking for a PUK code):

Conclusion