Corrupted download or incompatible board version. Solution:
Make sure you have properly configured the APN (Access Point Name) for your new SIM card. A correct APN is required for the router to connect to the 4G network. dialog huawei b310s-925 unlock firmware download
Flashing firmware carries risks, including permanently bricking your device if done incorrectly. Ensure you have the following ready before starting: Corrupted download or incompatible board version