Revert Browan Micro LoRaWAN Gateway to original (Browan) configuration

Revert Browan Micro LoRaWAN Gateway to original (Browan) configuration

Can you please help me to revert my Browan Micro GW to its original configuration - I bought it from the ThingPark Store and it came configured for ThingPark Community, but I would like to use it with my own backend instead.

Thank you in advance