Yes, but the modem NVRAM will retain v1.0’s band profile, potentially causing intermittent connects on v0.9. A full modem AT command reset ( AT+QRST=1 ) is required after downgrade.
settings to ensure your APN (Access Point Name) is configured correctly for your mobile carrier. 4g630-v1.0.0.29-en
Additionally, default admin credentials ( admin:admin ) now trigger an on first login after flashing. Yes, but the modem NVRAM will retain v1
Do not flash this firmware on 4G631 (dual-SIM variant) or legacy 4G620 hardware. The bootloader checks for hardware ID mismatch. 4g630-v1.0.0.29-en