After verifying our devices were eligible for unlocking our support rep
provided us with instructions for unlocking our novatel mifi 2372.
Below are the instructions:
My question how do I get the utility? I tried downloading
the drivers to see if the utility was bundled, however it
was not. Any advice would be appreciated.
MiFi 2372 - Using the SIMS Unlock Utility
1 Close any connection manager in use.
2 Novatel Wireless Driver must be installed. Run Driver Installer to install the Novatel Wireless Driver (NvtlDriverEthernet_V2.03.06.009.msi).
3 Run SimUnlockUtility.exe.
4 Connect the device with USB cable.
5 Waiting for Unlock Code Entry displays.
6 Enter the 10-digit unlock code.
7 Select Unlock.
8 Successful Unlock or Device Already Unlocked displays.
Note: If Device Already Unlocked appears in the red banner, the device is already unlocked.
9 Wrong Unlock Code Entered displays - This message appears in the red banner if the unlock code is entered incorrectly. Example: Wrong number of digits entered - Unlock code must be exactly 10 characters including leading zeros.
I wasted an afternoon/evening trying to unlock my AT&T-branded MiFi 2372... and succeeded.
There is no SimUnlockUtility.exe
Here's a not-so-brief walkthrough to save other people a lot of grief. Created a throwaway account here just for you guys
Obtain a SIM card from a carrier other than AT&T
Remove the battery and note down the IMEI
Call AT&T Wireless customer service and request your free subsidy code (10 digits)
You need Novatel's MobiLink 3 software package suite to unlock the MiFi. No sketchy unlocking software necessary, nothing to buy if your device has been out of AT&T service for more than 90 days. There are two ways to guarantee that you obtain the proper MobiLink3 software package tailored for the MiFi 2372.
METHOD 1: Search for the ISO filename directly
20418676.Novatel.Multi-Product.001.iso (available in a ZIP archive)
METHOD 2: Locate and download the Novatel MiFi 2372 generic firmware package