Phone is stuck on boot ( S-on - no adb - custom recovery )

Hello everyone,

My friend has tried to get into the rooting scene and without proper knowledge he managed to get himself stuck on the boot screen.
I offered him my help, since I thought that this would be an easy fix because the phone still has access to the TWRP recovery.
What I didn't know is that the phone was branded and S-on. The CID is: VODAPE17.
Another problem is that I can't get adb to work. I have installed HTC sync and on my personal nexus 5 adb works just fine.

To sum it up:
CID: VODAPE17
The bootloader is unlocked
S-on
Acces to custom recovery
no backup
no adb
fastboot works

What I have tried:
I tried to get the device S-off with HTC dev. But it required me to boot up the phone, so that didn't work out.

I have found a nand backup that should work with this CID on this page: http://forum.xda-developers.com/show...2701376&page=5
This one: 3.29.161.9 - TWRP Thanks to Petert87 (what does that number: 3.29.1619 mean?)
I unpacked the file. Send it to the internal storage and renamed it to a backup that I had made myself (otherwise TWRP wouldn't recognize it?).
After wiping I restored the backup, but to my surprise the phone still was stuck on the HTC one logo when I tried to boot it!

I tried to get as much information from the phone as possible.
This is what I got:

version: 0.5
version-bootloader: 3.19.0.0000
version-baseband: 1.25.214500021.06G
version-cpld: None
version-microp: None
version-main: 4.19.161.2
version-misc: PVT SHIP S-ON
product: m8_ul
platform: hTCBmsm8974
modelid: 0P6B10000
cidnum: VODAPE17
battery-status: good
battery-voltage: 0mV
partition-layout: Generic
security: on
build-mode: SHIP
boot-mode: FASTBOOT
commitno-bootloader: 3aa067db
hbootpreupdate: 11
gencheckpt: 0

My question

Can anyone help me to get this phone running again? I don't really know what to do anymore. :(


Every bit of help is appreciated very much! :good::)
Thank you in advance!

Sietse