Also, consider troubleshooting: if the firmware update via SD card doesn't work, possible causes like incorrect SD card formatting, wrong firmware file, or incompatible firmware version. Tips on verifying the firmware file's integrity via checksums if available.
User might be looking for a step-by-step guide for updating firmware using an SD card. But they might not know if their firmware update includes this method. I should check if Huawei supports SD card based firmware updates for this model. If not, maybe the user found a method and needs validation. If yes, then detail the steps. Otherwise, suggest alternative methods like using the router's web interface or Huawei's PC software. Huawei T1-701u Firmware Sd Card
Security aspects: firmware updates usually fix vulnerabilities, so it's important to keep the router updated. Also, if the user is performing this update to enable certain features or resolve network issues, that could be part of the report. Also, consider troubleshooting: if the firmware update via