First, you will be needing a software called DC-Unlocker, its same as the one i posted on the tutorial relating to unlocking glo netpro modem but that software called be used in unlocking this sort of modem. I’d recommend you download the latest version of this software which is version dc-unlocker_client-1.00.0975 from dc-unlocker website here.
You also need a working dc-unlocker username and password, this is required for authentication when unlocking the modem using the dc software.
You also need to have dc-unlocker credits loaded on your account
username and password, depending on your modem but I’d recommend getting
like 6 credits and 1 credit costs 1 euro. You can purchase credits via www.dc-unlocker.com/buy using paypal funds.
You will be needing an active internet connection on your computer, this is to enable your dc-unlocker software connect to the internet in other to verify and successfully unlock your USB modem.
Have you got all that in place? Next…
Connect your Glo Bolt or MTN Huawei E303 USB Modem
to your PC with an unsupported sim card via a USB Port and when it
prompts you to insert your unlock code, simply close the modem interface
window and launch your downloaded DC-Unlocker Software.
Use the DC-Unlocker Software as i have formally illustrated on this post to detect your E303 modem. After successful detection, click on Server and input your already credited username and password.
Head back to the Unlocking option and click on Do Job,
the software will connect online and after successful verification of
your username and password, your huawei modem will be unlocked and you
should get a successful notification.
Close DC-Unlocker, remove and re-insert your GLO or MTN E303 Huawei
Modem using an unsupported device and you shouldn’t get an error again
because you are good to using your modem with other network sims.
This tips should work in unlocking both E303 Huawei and ZTE modems, for more questions or comments, please use the comment box.