your engineers have passed some information about how to set the country code via serial interface like follows:
<ORnvram_set CountryCode KR && nvram_set CountryRegion 0 && nvram_set CountryRegionABand 0>
as an example for setting KOREA country code
The command obviously executes, as the web-page does show the change in country code, but:
- from then the module doesn’t react anymore to any serial command and
- the new setting is not stored in flash, as the setting is reset after next power up
If the module needs to have another hardware reset after setting…no problem
but the setting needs to be stored on a permanent base.