Windows 7, 8, or 10. (If using Windows 11, you may need to run the application in "Compatibility Mode" for Windows 7).
Does not work on macOS or Linux without a Windows emulator (Wine is unreliable for this tool).
| Series | Examples | |--------|----------| | | E303, E303s-2 | | E3131 | E3131, E3131-2 | | E3272 | E3272, E3276 (4G LTE) | | E3372 | E3372h-153 (Hilink mode) | | E3531 | E3531, E3531s-2 | | E5573 | E5573s-856 (Mobile WiFi hotspot) | | E5785 | E5785Lj-22a (4G+ router) | | B310 | B310s-927 (CPE router) | download huawei modem unlocker v581b by bojs latest updated
Improperly attempting to modify a modem's firmware or entering incorrect unlock codes multiple times can "brick" the device, rendering it permanently non-functional.
Reddit user 4G_Gremlin wrote last month: "Downloaded 'BOJS v581b final final' from a random blog. My antivirus screamed, but I disabled it. Now my E3372 only shows a red light and my PC has a cryptominer." Windows 7, 8, or 10
: Connect the modem to your PC, install basic drivers, and run the Bojs unlocker.
BOJS v581b doesn’t beg for permission. It exploits a legacy debug interface left over from Huawei’s older chipset architecture (especially the HiSilicon Balong V7 and V9 series). The tool sends raw AT commands—like AT^SF=1 or AT^NVWR=... —that the modem accepts because it thinks a Huawei engineer is on the other end. | Series | Examples | |--------|----------| | |
For a safer approach, users can often request an official unlock code from their original network provider, sometimes for a small fee or after a contract period. 5. Compatibility
Right-click the executable file and select . Step 2: Configure the Software