How to activate AT&T 4G/LTE on Rfinder radios

There is a special procedure to activate the 4G LTE service on your RFinder with AT&T Wireless:

Send an e-mail to jr5788@att.com with W2CYK@rfinder.net in CC.
SUBJECT: M1 CONVERT TO LTE
BODY:
«JOSH, PLEASE CONVERT MY M1 TO LTE.
MY IMEI IS: <PUT YOUR IMEI HERE>
MY PHONE NUMBER IS: <PUT THE PHONE NUMBER OF OF YOUR M1 HERE>
MY AT&T PIN IS: <YOUR AT&T 4 DIGIT PIN>

 

Then, you just need to wait up to few days until the activation is in place. Enjoy your RFinder LTE capabilities.

Such procedure is not necessary in other countries.