The Huawei B311-221 is a popular 4G LTE CPE router often locked to specific internet service providers (ISPs) like Zong or Libyana. Unlocking it allows the use of any SIM card from any carrier globally

For the technically fearless, you can create a custom unlock firmware using . This is 100% free but requires Linux knowledge.

When users search for "unlock firmware free" , they typically mean one of two things:

You will need this 15-digit number to generate an unlock code: Check the of your router.

Some Huawei B311 models use an algorithm for unlock codes. Try this free calculator: