[Q] Help please..HTC ONE stuck...no OS topic

Hello,

So story goes....phone was attempted an software upgrade which caused the phone to be stuck in a boot loop. So i have since got it in to recovery mode. Currently the phone is bootloader unlocked (via htcdev)....S-ON. I have managed to install twrp but all attempts to install an OS have failed. I have tried fastboot flash and also install from zip via twrp. My phone is detected by my laptop when i go in to twrp however i do not see any folders within the twrp folder. Any ideas of what my next steps could be? Thanks so much in advance. My phone info is...

(bootloader) version: 0.5
(bootloader) version-bootloader: 1.57.0000
(bootloader) version-baseband: 4T.29.3218.08
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 6.09.401.11
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) meid: 00000000000000
(bootloader) product: m7_ul
(bootloader) platform: HBOOT-8064
(bootloader) modelid: PN0710000
(bootloader) cidnum: HTC__001
(bootloader) battery-status: good
(bootloader) battery-voltage: 4222mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: dirty-6d8a0b9b
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0