New 7201 AU915 Cannot configure

Issue:Cannot configure new 7201

Setup:7201 connected to RAK Serial port tool


Details:I have just received a new 7201 button, Press/Hold button 1 to enter cfg mode makes button 3 go solid RED not all buttons blue as per docs. The Cfg tool returns AT Command ERROR when trying to query the version. Have removed/reconnected battery. What version firmware should the 7201 have? Any tips suggestions please…Thank you.