I have a M8w that's completely stock and up-to-date. I just couldn't find out yet weather there is a difference between M8 and M8w when it comes to rooting and custom recoveries. Since I assume I need that in order to do a nand backup you'd have to wait a few days... But I guys I could help you out on that one
Sent from my HTC M8w using XDA Premium 4 mobile app
Sent from my HTC M8w using XDA Premium 4 mobile app