I am currently working with the Quectel RM520N-GL modem and need assistance in restoring the device to its factory default configuration.
I have researched potential AT commands to achieve this and have found the following options:
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AT&F: While this command appears to reset some settings, it does not seem to restore all modem configurations to their factory defaults.
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AT+QPRTPARA=3: I have read that this command may restore more comprehensive settings but could potentially damage the modem. Therefore, I am not going to use it without further confirmation.
Given these considerations, I would appreciate your guidance on the correct command to use for safely restoring the RM520N-GL modem to its factory default settings. I need to implement this for a customer project, so this operation will need to be performed repeatedly, not just as a one-time development task. Additionally, I would like to confirm whether it is necessary to reboot the modem using the AT+CFUN=1,1 command after performing these reset operations, or if it will be recommended.
Thank you in advance for your support
Gonzalo