Huawei E3372h sub-model E3372H-510 is available in Guatemala with Tigo carrier. It is a hilink dongle and comes with firmware version 22.180.09.00.288 and WebUI 17.100.07.00.288.
Some info of E3372H-510 dongle:
Found modem: E3372
Model: Huawei E3372h-510
IMEI : 866658*****
Serial NR. : K2UDU1***********
Compile date / time : Oct 22 2015 21:17:35
Hardware ver. : CL2E3372HM
Dashboard version: WEBUI_17.100.07.00.288
SIM-Lock status: Locked (Card Lock)
Wrong codes entered : 0 (unlock attempts left : 10)
As you can see that, it comes locked to Tigo Guatemala, but 10 attempts are left to enter the code. When you change the SIM card from another carrier and plug the modem into the PC, it will prompt you for an 8-digit unlock code. This means, once the correct code is entered, it is unlocked forever.
This data-card can be unlocked without changing the firmware as it can un-customized firmware. There is no need to change the firmware and there will no loss of warranty.
How to Unlock Huawei E3372h-510 (Firmware 22.180.09.00.288) [FREE]?
1. Change the default SIM card with any other network provider.
2. Connect to Windows USB PC port.
3. Open My Computer >> Virtual CD-ROM and install in PC.
4. It will automatically open the dongle’s default page and ask you for an 8-digit unlock code.
5. Close the browser.
6. Run DC-unlocker as administrator.
7. Click on the Search button of the DC-unlocker.
8. You will notice that CD-ROM is again available on My Computer.
9. Now install FC drivers.
10. Again, click on the Search button.
11. You will see the details of your modem in the DC-unlocker app.
12. At the end of the result, in a new line, paste the following:
13. Press Enter from the keyboard.
14. Copy the whole encrypted data and keep it in a notepad file (I will ask for these details after getting the amount of unlocking).
15. Since unlocking of Tigo Huawei E3372H is free of cost, comment with the model, network, IMEI, country, and NV hash code.
16. It will be replied to by our team.
Once encrypted data are received, it will be converted into Unlock Code and will be replied to.
17. Again, put another SIM card in the dongle and connect to the PC.
18. When it will ask for Unlock Code, then enter the code and your E3372H Tigo will be unlocked permanently.