: The modem should now accept the new SIM. You may need to manually configure the new network's APN settings to connect to the internet. Important Safety and Compatibility Considerations
If you are looking to unlock your Huawei modem, dongle, or mobile Wi-Fi device to use with any network SIM card, the is one of the most reliable, free, and popular tools available. Developed by Bojs from the Philippines, this utility allows you to remove network restrictions, often known as "network locks" or "SIM locks," enabling you to switch service providers without buying a new device.
: Plug your Huawei modem into a USB port using a standard cable. Scan Modem : Open the tool and click
Note: Modern 4G LTE and 5G Hilink modems (like E3372 or E5573 on newer firmware) may require boot-shot methods or different unlocking algorithms. Step-by-Step Installation and Usage Guide
: Clears the SIM lock counter and unlocks the modem across device restarts. download huawei modem unlocker v581b by bojs latest updated
A $10 locked ISP modem becomes a universal unlocked device ready for any network.
Plug the USB modem into an open USB port on your PC. Close any proprietary carrier dashboard software that launches automatically. Step 2: Running the Tool
The Ultimate Guide to Huawei Modem Unlocker v5.8.1B by Bojs If you use a USB modem or Wi-Fi dongle, you know the frustration of network locking. You buy a device from one carrier, but you cannot use a SIM card from another provider.
Response: OK means success.
The remains a "must-have" in any technician’s digital toolkit. Its simplicity and the fact that it’s free make it the go-to solution for reviving old modems and gaining the freedom to switch to cheaper data plans.
: Check your Windows Device Manager. Ensure your device is categorized under "Ports (COM & LPT)". If missing, reinstall the official Huawei USB Driver package .
Can enable or disable voice calling capabilities on supported hardware.
By following these safety measures and verifying the integrity of the files, you can minimize risks while using the unlocking tool. : The modem should now accept the new SIM
: Windows XP, 7, 8, 10, or 11 (32-bit or 64-bit).
A widely used professional tool with a more frequently updated database.
| Tool | Pricing | Best for | |------|---------|----------| | Paid (~$15) | Older 3G/4G modems | | Huawei Code Calculator | Free | E173, E303 series only | | Universal Master Code | Free | Very old E1550, E156G | | HCU (Huawei Calculator Utility) | Paid | 2016-2020 modems |
