| Error Message | Meaning | Solution | |---------------|---------|----------| | Invalid firmware file | UPD corrupted or wrong model | Re-download, check filename includes correct hardware ID | | Firmware signature mismatch | UPD not signed for this unit (carrier lock) | Use only your carrier’s official updates | | Low battery / power unstable | Voltage drop detected | Use original 48V PoE adapter, not passive PoE | | Upgrade failed at 99% | Modem partition write error | Retry; if persistent, modem hardware failure | | Device stuck in boot loop after update | Kernel panic or wrong rootfs | Perform emergency recovery with known-good UPD |
Troubleshooting
If the OTA check says "No updates" but you know a newer version exists (often found in forums or provided by ISP support), you can manually flash it: zte mc7010 firmware update upd
A: No. Firmware updates do not change SIM lock status. Network unlocking requires an unlock code from your original carrier. | Error Message | Meaning | Solution |