The update will take several minutes. Do not disconnect the modem or interrupt the power. Once finished, the modem will reboot itself.
Ensure the standard Huawei Mobile Partner software or basic drivers are installed so your PC recognizes the COM ports. huawei+e303s1+firmware+update+free
This comprehensive guide provides everything you need to safely update your Huawei E303s-1 firmware for free. Prerequisites Before Updating The update will take several minutes
This implies a corrupted firmware update (bricked state). You will need to use an advanced force-flash utility or an older, highly compatible version of the firmware to force the modem back into a stable download mode. huawei+e303s1+firmware+update+free
If you need help finding specific software versions, let me know:
Huawei’s official Mobile Partner software includes an automatic update feature.