Hi,
Can you please check with your distributor if you don’t know about the pin?
The boot pin was actually documented at Table 14 of FXT user guide:
http://developer.sierrawireless.com/en/Resources/Resources/AirLink/Hardware_specs_user_guides/AirLink_FXT_Series_User_Guide.aspx
Just for reference, similar issue faced by the community:
[url]most AT command will return error After update the software - #6 by mi1]
I believe your distributor can give you good instruction and even required tool on how to erase the OpenAT application.
Thx
L