“Doesn’t look like there was really a good answer for this question so I’m posting this 8 months later. The following command will reset back to the factory IMEI number if it is lost or forgotten.
You can restore the factory settings with:
AT+QPRTPARA=3
Don’t use too often because it uses intensively Flash and the module at the end can be destroyed
After you execute AT+QPRTPARA=3, ALL configuration will be erased and overwritten with Factory setting values.“
Is I true?
It can kill modem if I will change IMEI too many times? Or no? Or it is only about reset command, but regular AT+EGMR=1,7,"123456789101213" is safe?
Won’t I harm my modem if I will change my IMEI too many times (like 6 times a day)?
@alzhao can you consult with tech team and provide me exact information?
I’m pretty sure this is a non-issue for the average user. I honestly wouldn’t worry about it and it’s not really worth contacting tech support about it unless you were wanting to create a script that will automatically change the IMEI number for each of the SIM slots and expect it to change it a few times a day. If that’s the case, then yes, you had better consult with someone with a higher pay grade.
AT+QPRTPARA=3 may harm your module but I doubt that changing IMEI will. We’re even modifying the file system itself of RM520N-GL and so far no flash wear was indicated (see Simple Admin project on Github). I also change IMEI regularly but not as frequent as changing everyday or even weekly. If you want to revert back to your original IMEI, don’t use QPRTPARA. Simply use EGMR and insert your original IMEI as the value.
