Because firmware unlocking treads legal grey areas (DMCA anti-circumvention in the US, though rarely enforced for personal use), official sites do not host these files. Your best sources are:
After unlocking, you must verify that the restrictions are truly gone. Vida M2 Lte Router Firmware Unlock
If your carrier firmware disabled the external antenna ports, unlocking re-enables them. Connect a high-gain MIMO antenna to significantly improve rural or fringe area reception. Because firmware unlocking treads legal grey areas (DMCA
Click Download or Flash.
Wait for the “Download Complete” message (5–10 minutes). Click Download or Flash