Keydiy key tool is able to clone Toyota G chips. Here are questions frequently asked and answers by experienced users.
Q: Is this still G chip since KD says is clonable or its maybe H chip ?
A: It is G chip. They are cloneable at the moment. Not H chip however, to my knowledge!
Q: clonable on cN 5 ?
A: yes CN5- once you decode you key, in read and copy function
Q: I have this type of cn5 for writing
Nad there is 72 G clone on Keydiy
A: you can clone no problem.
Q: Auto detect-clone all ok but cant write on this CN5 I have. To try under 72G clone or to try another chip ?
A: do you have Cn2 chip? Try that
Result: Used one cn5 normal capacity and it was written fine. All ok spare key finished.
Btw, If memory serves me have used LKP-02 no issues. Just did a 14 Toyota Tacoma G the other day. lkp02 is the most cost effective option
Keydiy programmer tech support:
http://www.chinacardiags.com/wholesale/kd-x2-keydiy-remote-unlocker.html