[Q] how to unroot HTC One topic

i need to unroot and install stock recovery, so i can update to 4.4.2
s-off with rumrunner
Thanks! :laugh:

(bootloader) version: 0.5
(bootloader) version-bootloader: 1.55.0000
(bootloader) version-baseband: 4A.21.3263.04
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 3.63.161.6
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno: ****
(bootloader) imei: ****
(bootloader) meid: 00000000000000
(bootloader) product: m7_ul
(bootloader) platform: HBOOT-8064
(bootloader) modelid: PN0710000
(bootloader) cidnum: VODAP102
(bootloader) battery-status: good
(bootloader) battery-voltage: 4043mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: dirty-ea0bccbd
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0