can you please help me to find correct ruuvzw is shortform for verizon. wlv is product code for verizon.
Another example spr for sprint but product code is whl
I suggested a GSM based ROM with support for Verizon. You can find some of them in M8 development section as your concern is the hotspot. I don't know installing a Vzw based ROM will cater your need.
Briefly going thru Vzw forum, I see only this a GSM rom with verizon support
https://forum.xda-developers.com/ve...t/rom-nusenseven-marshmallow-sense-7-t3266678
Maybe there are others not so sure.
For testing purpose only maybe you can try this ROM. I used it before so I know there is Verizon support.
https://forum.xda-developers.com/htc-one-m8/development/rom-sense-6-12-401-4-mra58k-stock-t3296066
Install and select verizon in installer. Test for hotspot.
Later you can try others in M8 gsm section - https://forum.xda-developers.com/htc-one-m8/development
Most important, never flash any firmware other than verizon.
C:\adb>fastboot getvar all
(bootloader) version: 0.5
(bootloader) version-bootloader: 2.49.0000
(bootloader) version-baseband: N/A
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 4.14.709.10
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno: FA495WG00459
(bootloader) imei: *******************
(bootloader) meid: 00000000000000
(bootloader) product: t6ul
(bootloader) platform: HBOOT-8064
(bootloader) modelid: 0P3P52000
(bootloader) cidnum: HTC__621
(bootloader) battery-status: low
(bootloader) battery-voltage: 3520mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: dirty-d0e3b226
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!