Hi @ all
I switched to the latest official LineagOS 15.1 and everything works like a charm.
I realized that the Button Combo for EDL does no long work as already mentioned in the LineageOS thread. No problem so far since I can reboot to EDL via adb.
However, I would really like to restore this...
I will provide the different Stock Recoveries for the HTC One which hopefully suit your Nandroid Backups. ;)
Thanks to crushalot who provides the RUUs and OTAs on htc1guru.com and at xda-developers.com: [COLLECTION][GUIDE] HTC M7 RUU, OTA, and Stock Nandroid Downloads
Thanks to Guich...