A true addresses all three issues simultaneously.
: Unlocking your firmware may void your manufacturer's warranty. Proceed with caution and ensure your device is fully charged or connected to a stable power source. how to unlock the Airtel Vida M2 LTE Mifi M022 - Scribd
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: Specific versions (e.g., L02H-1-10 ) often result in a "temporary" unlock. In these cases, the router will relock every time it is restarted, requiring the user to repeat the final tool steps to use a different SIM again.