any one tell how to update rooted m9+ taiwan v1.85.401.6 to latest ota updates

Can any one tell me why we we need stock recovery .... and I had flash 1.85.401.5 after that again fail to update v 1.86.401.6 can any one help me and give a tutorial how to update rooted HTC One M9 plus Taiwan and my ota version is 1.85.401.6.
I have showing new updates available but when I updates it downloaded but fail to updates.....plz plz any one help me

Download from this link

Can someone tell me which stable rom has its car bluetooth rom working?

Hi guys!

Have someone met the same problem as me? its so frustrating. im always having problems with the official miui rom or some of our beloved developer rom. Either it doesnt save the bluetooth info in my car (ie everything i switch on the car, i need to rekey in the password) or the bluetooth just switch off every few secs..

Perhaps I havent tried all the roms, but can someone tell me which rom is working for the car bluetooth? would really appreciate it!

Download from this link