It looks like you’re looking for firmware for the Huawei B311-221 4G LTE router.
Therefore, the community consensus is shifting toward third-party firmware. Projects like OpenWRT (experimental for B311) and Huawei_B311_V4_Ultimate offer: Huawei B311-221 Firmware
Typical sources:
Issue: "Update Failed" or Router Bricked It looks like you’re looking for firmware for
You need to load content from reCAPTCHA to submit the form. Please note that doing so will share data with third-party providers.
More InformationYou need to load content from Turnstile to submit the form. Please note that doing so will share data with third-party providers.
More InformationYou need to load content from reCAPTCHA to submit the form. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from Turnstile. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from Facebook. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from Instagram. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More InformationYou are currently viewing a placeholder content from X. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.
More Information