[Q] Can I save my phone? topic

Hey xda-developers, can you please help me save my phone from the dead?

I have a HTC One M7_UL PVT SHIP S-OFF RH phone.
It's LOCKED thanks to HTC1Guru reset (which I'm part way through)
S-OFF is paid to Sunshine
I'm no longer in position to give you any numbers on anything but:

• CID: HTC__001
  HBOOT_ 1.44.0000
  Radio: 4T.29.3218.08
  OpenDSP: v32.120.274.0909
  eMMC-boot

These numbers may or may not be stock, I've changed CID a couple of times before.

My big problem is that I failed a RUU-flash as the device started automatically after the preflash and I missed to run the command immediately.
I can only boot into HBOOT, FASTBOOT and RECOVERY(TWRP-v2.8.0 - red flag).
I left the fastboot option in my phone off last time I did any modding with it, so I can not connect fastboot to my PC. The common <waiting for device> showing. Only fix is to change the settings in the phone.

I am able to do the old UPDATE.ZIP method by mounting my phone with MTP in RECOVERY-mode. But I don't know and could not find any guide form my phone. I've never been able to get adb sideload working but adb push is just enough.

I have a backup, I think before I did S-OFF, and all my files is accessible if I cared more about them. (Most things are stored in clouds anyway and settings are easily adjusted on the go.)

I didn't read up to much, but I really hope there is a way to save my phone so it can help me with school and other things. (I have all my calenders and alarms telling me what to do.)