I just received another RX200 and this one has hardware version 1.04, where my original has 1.01. It is a little different in TC mode. It works on SS with my Triton tank with a .04 SS coil head. The 1.01 will only go to 'temprotection' at the same settings. I previously found a TCR setting of 121 would make the 1.01 work in TC. But the 1.04 version only needs a TCR of 101. Its nice to see not only the firmware upgraded, but the hardware improved too.
Clarification:It appears to me that rx200 default modes for the three popular wires are set using an unknown tank. I have tried ni200 and SS triton heads in the same tank and the default modes don't work. I haven't seen where or why these defaults were made except for marketing. Evolv hasn't been any different, except to keep some people in software hell. The strength of the RX200 is to be able to vary the TCR variable in three saved memory locations for a TC controlled consistently good vape on the same tank with different wires each time. Plug N' Play.