Naza m V2 and gains

[apollo7]

This is strange, i have installed a (mint) condition Naza M V2 into my new build reptile TBS 500 and doing all the set up in M assistant i get X-2 ERR and it wont let me adjust the main gains, i can set the attitude gains but nothing else.
I did plug the LED/PMU wire into X2 by mistake but changed it to X3 as it should be.....but still getting the X-2 ERR
can any one shed any light on these 2 issues please

[apollo7]

Pats himself on the back 
Fixed it myself, did a restore to default, hey presto X-2 ERR gone and now done the gains setting, it should fly but may want a tune up to get right