Some problem appear when try other different firmware ex ( Golden Radio) and want to return to harduino
Need esptool v3.9.9 select esp32, connect to your radio and press erase to clean memory.
Then install harduino firmware.

Before cleaning symptoms
No connect to wifi, will lock licence key and need to reset key.

Hello. I need a license key for the ATS25X2. My email address is sq7otg@gmail.com

h-radio activated thanks to atsxkey@gmail.com.
I received the key instantly. I had some trouble with activation, but atsxkey@gmail.com helped me out, and everything is working now. Highly recommended!!!!!!

Thanks for licence
atsxkey@gmail.com
Work great.

MARC21
i have sent licence key, please cofirm activation

Bonjour j aurais besoin d une clé appareil bloqué comment procedé merci

marc

thank you from the bottom of my heart.
you saved me from a mistake. quick response to emails, license received within minutes of payment. The whole process took less than 20 min.
Kind and fast, answered questions even after activation. 100% recommended

Dar enormemente las gracias a atsxkey@gmail.com, primero por su gran rapidez y segundo por su gran profesionalidad.
Da gusto contactar con gente tan amable y profesional.
Atentamente recomendable.
Muchas grcs!!!

ATS25+
Slightly confused on procedure, doing it on web site, what key strig goes where, otherwise flowless process of activation of revision 4.2, Next day upgraded to 4.21, license not required again

a very big thank you to atsxkey@gmail.com for sorting my big problem of getting my license key sorted out but we got there in the end 100% happy so i thank you again MR-atsxkey@gmail.com. ALL THE BEST MY FRIEND 73S TO YOU. REGARDS PAUL.

Thanks for the code
atsxkey@gmail.com