I had unlocked the bootloader via HTCDev, gained root and also S-Off using firewater, phone was still on stock rom.
I wanted to unroot my phone and lock the bootloader as I was returning it.
I managed to unroot and lock the bootloader, but when I put back S-On, the phone now shows ***Tampered*** ***Locked*** and S-On.
Currently the phone boots fine and works with no issues, however I am unable to get into recovery (just brings me back to the bootloader). The phone is not detected by ADB but is found by Fastboot. So far I have tried to uninstall the HTC one drivers, reinstalled the drivers with HTC sync manager, also tried by installing the drivers on their own to no avail. When in ADB and I type adb devices, it just shows: List of devices attached (my device is not detected. I have also tried on a fresh install of Windows 7 and I get the same result.
Here's the info for my HTC One from fastboot getvar all:
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