Uganda Airtel has launched customized firmware modem Huawei E3131s-1 and it is not possible to unlock it without flashing the firmware. Earlier the company has launched the same dongle with un-customized firmware and unlocking was easy.
Found modem : E3131s-1EW
Model : Huawei E3131
IMEI : 8627***********
Serial NR. : N8S7SA1281*******
Firmware : 21.157.48.00.846
Compile date / time : Jul 3 2012 10:07:42
Hardware ver. : CH2E303SM
Dashboard version : UTPS21.003.28.13.846_MAC21.003.28.12.846_LNX21.003.28.06.846
SIM Lock status : Locked (CardLock)
Wrong codes entered : 10 (unlock attempts left : 0)
Notably, firmware version 21.157.48.00.846 remains unchanged but unlocking counter left is 0, means it will not accept any unlock code now.
How to Unlock Customized Huawei E3131s-1 Uganda Airtel Modem ?
1. Download Firmware Huawei E3131s-1 21.158.13.00.297 (Dialog Sri Lanka) (Download Link).
2. Download Universal Master Code to generate the firmware code.
3. Change the default SIM with another network provider SIM and plug the dongle to Windows PC.
4. If internet is already connected then disconnect it.
5. If dashboard / software automatically opens then close it. See on taskbar also, if it is running then evict it.
5. Now, run free Universal Master Code tool and go to Huawei tab and generate the firmware code for your IMEI.
6. Note down the flash code.
7. Now, run the firmware update, which you have already downloaded.
8. When it asks you password then use the flash code, which you have already generated in 5th step.
9. Proceed with further steps and wait till finish wizard.
Now, your customized Huawei E3131s-1 Uganda Airtel Modem has been successfully updated with unlocked firmware and your dongle is ready for unlocking.
Now, purchase the correct unlock code for your device. Download card lock unlock tool. Detect the dongle under card lock unlock tool and enter the NCK / unlock code and click on OK. Now, you device is successfully unlocked.
You can also use unbranded Huawei Mobile Partner 23.015.02.00.03 for Windows 8.1 & Mac 10.10.