[General Questions and Answers] ClownWorld:
Edit i figured everything out except the drivers issue fastboot waiting for device, I'll try to find the answer to this as well for the future.

I'm aiming to get to installing Cyanogenmod/LineageOS Android 6.0 on a HTC Sensation Z710E. So far I've managed to unlock the bootloader, installed TWRP 3.1N0-0 and successfully zombie'd (no bootable os installed or seemingly can be installed... :silly: ) (Upon system boot the device permanently displays green "htc" with white background.) the device whilst trying to install a custom rom with S-ON. (Wups) I also tried installing what seems like stock android images, but even after editing the script(s) to remove the assert lines (error: 7 whilst flashing in TWRP) so that it could be "successfully" installed, all seemingly in vain, as I was met by the same old zombo-green-htc.

"*isnt my unlocked via htcdev bootloader the same as s-off? i thot thats what unlocked means?

sorry, no. its not the same. the key difference is that htcdev unlock only allows access to boot/system/recovery. the phone is still s-on,and still doing plently of checks that prevent you from:

-changing firmware

-changing your splash screen

-going backwards in software/firmware build version numbers."

:D

I've tried re-locking the device and downloaded the .exe RUU firmwares from androidruu

I'm not sure if these are hboot updates or actual Android stock rom/firmwares. Regardless I've tried them after running the fastboot oem lock command (RELOCKED) and they say that something along the lines of "the hboot version is older (error)"

Where does one get actual android stock firmware / rom images which are flashable in TWRP, I've installed android studio as well if that's where it's at. It's not so easy to find them, granted the device is ancient nor was it ever a flagship, I think.

Driver problems: when the OS was installed the adb commands were working, but fastboot was permanently "waiting for device" Adb interface driver is installed, also have myhtc drivers, there's still a yellow icon and nothing called "fastboot driver or device" in device manager.

I could post some screens from usbdeview if that's helpful? Or maybe there's some software that's helpful with sorting out driver conflicts etc?

Here's some relevant info from getvar all:

INFOcidnum: HTC__032
(region)

INFOproduct: pyramid
(software version)

INFOversion-bootloader: 1.27.0000 (HBOOT ver)

INFOsecurity: on (S-ON)

To be redundant

Bootloader says:

Unlocked

Pyramid PVT Ship S-ON RL

Hboot-1.27.0000

eMMC-boot

So unless things have changed and there are better methods, I guess I need to install a stock official android preferably latest one for the sensation, or an earlier android os and then update it through the wifi say, and then unlock the bootloader if necessary, and install recovery, root if necessary, and then I'll be able to S-OFF through Juopunutbear or rumrunner. Which is what I should have done instead of doing a factory reset in twrp without backing up and ending up wasting a lot of time on trying to install firmwares which seem to all have been custom.

So once again, basically I need an official stock rom for htc sensation z710e, which I'll flash in twrp. The fastboot <waiting for devices> problem remains.