Develop Bugs

HTC M8 Hong Kong Help (No version_main)

Hi everyone!
I recently unlocked my bootloader and rooted my m8.
I tried using firewater to "s-off" my phone and unfortunately, it did not work out. The way I understand it, I cannot install stock ROMs (such as the 5.0.1 GPE) without "s-off." Now, I want to unroot my phone and stick to waiting for the OTAs to roll out instead.
I followed the instructions in the "returning to stock" thread and noticed that I have no version main (see attached image). I looked around the forums and saw that the advice was to flash the latest TWRP version. Since I'm stuck with a phone that I cannot update, I'm trying to be careful now. Can anyone please confirm if flashing the latest TWRP will bring my version main back?
The noob in me also has a few questions/requests as well:
1. Since my phone is rooted, I cannot receive OTA updates and upgrade to lollipop once these updates roll out?
2. Please tell me which files to download to return to stock. Just trying to be really careful this time around.
3. Lastly, is it also true that I can only install custom ROMs once have rooted? As to stock ROMs, I can't install them until I get "s-off"?
Thanks a lot, everyone! Cheers!

panchizzles said:
Hi everyone!
I recently unlocked my bootloader and rooted my m8.
I tried using firewater to "s-off" my phone and unfortunately, it did not work out. The way I understand it, I cannot install stock ROMs (such as the 5.0.1 GPE) without "s-off." Now, I want to unroot my phone and stick to waiting for the OTAs to roll out instead.
I followed the instructions in the "returning to stock" thread and noticed that I have no version main (see attached image). I looked around the forums and saw that the advice was to flash the latest TWRP version. Since I'm stuck with a phone that I cannot update, I'm trying to be careful now. Can anyone please confirm if flashing the latest TWRP will bring my version main back?
The noob in me also has a few questions/requests as well:
1. Since my phone is rooted, I cannot receive OTA updates and upgrade to lollipop once these updates roll out?
2. Please tell me which files to download to return to stock. Just trying to be really careful this time around.
3. Lastly, is it also true that I can only install custom ROMs once have rooted? As to stock ROMs, I can't install them until I get "s-off"?
Thanks a lot, everyone! Cheers!
Click to expand...
Click to collapse
Your firmware version: 3.32.708.4
I got it from your radio (baseband) number.

xunholyx said:
Your firmware version: 3.32.708.4
I got it from your radio (baseband) number.
Click to expand...
Click to collapse
Thanks for the reply!
Do I have to flash the latest TWRP version before proceeding?

[Australia] HTC 10 Australian

Hi guys,
I got my HTC 10 last week - phone is a big improvement from the m8.
I am running Telstra's latest firmware - Have s-off already...
Telstra's latest firmware is 1.53.841.6 with Leedroid ROM - have been trying to get VOLTE.
I never got VOLTE with stock because I rooted so fast and S-OFF and installed custom ROMs.
So I had to install stock system image 1.53.841.6, reinstall stock recovery and factory reset and VOLTE icon shows up instantly. Install TWRP and VOLTE remains. But if you install a custom rom and do a full wipe seem to lose VOLTE. Also have to have the telstra firmware to VOLTE to work, I tried with WWE and no go. Also had to ring up telstra as it wasn't activated. So if you are having trouble getting it - might be best to double check. Even though my provisioned flag was on. *#*#4636#*#* to check - tap phone info.
@xlrate reported not wiping data and installing VIPER was able to keep VOLTE. (Updated the customize folder in the rom with my Telstra back up, also the build prop to do this) Also TELST001 cid has to be on.
Has anyone got VOLTE working on a custom ROM on WWE Firmware?
So Aussies... Who's got their new HTC 10?
Update - 15/10/16
Thanks to @brantp for providing TWRP backups & OTAs
https://drive.google.com/drive/folders/0B6MWrHVBWC-xZlBQN1BqYUNPRW8
TWRP Backup (untouched System Image + Boot)
- 1.21.841.8 (+ Recovery)
- 1.53.841.6
- 1.80.841.1
- 1.95.841.3
Stock Recovery
- 1.53.841.6
- 1.80.841.1
- 1.95.841.3
OTA
1.21.841.8 --> 1.53.841.6
1.53.841.6 --> 1.80.841.1
1.80.841.1 --> 1.95.841.3
Firmwares- Refer to http://forum.xda-developers.com/htc-10/how-to/2016-05-27-fastboot-flashing-firmware-t3387520 for more info
https://docs.google.com/spreadsheets/d/1EdAHLDDxqf9jH65me_8bY9oXdaYusI0eedpwO6yUY2s/pubhtml
Thanks to @Sneakyghost
Roms- Leedroid, ICE and Viper now support Telstra with carrier support.
If anyone has any of the other australian carriers firmware please post and I will add them to OP.
15/08/16
https://www.androidfilehost.com/?w=files&flid=60869
Telstra RUU provided by @Sneakyghost - Will restore OTA's if anyone has broken them
12/03/18
Telstra OREO update
http://fotadl-az.htc.com/secure/OTA....48.841.31_release_519847tp9bagwfkglchg5u.zip
@Sneakyghost isn't doing the firmware updates anymore.
If you need to use the firmware.zip out of the OREO zip and need to a custom recovery either replace the recovery.img with twrp.img (rename it of course) in the firmware.zip - or flash one after installation.

I got mine about a month ago.. All I've done so far is root it.. (even after all these years, it still sounds wrong)
I normally run ARHD, but, Mike hasn't mentioned developing for the 10, so, I'm stuck atm, not really interested in running a massively modded ROM. But, last night the OTA notification popped up for 1.53.841.6.. So, I'm going to have to do something - the notification is annoying me. So, I guess I have to work out how to update it.
I hadn't even considered the VoLTE requirements.. I just assumed it would all work, even on a custom ROM. 4G did, I didn't think this would be any different.
Is VoLTE worth hanging on to? I don't really get it.. Is it like VOIP for mobiles?

Vampyric said:
I got mine about a month ago.. All I've done so far is root it.. (even after all these years, it still sounds wrong)
I normally run ARHD, but, Mike hasn't mentioned developing for the 10, so, I'm stuck atm, not really interested in running a massively modded ROM. But, last night the OTA notification popped up for 1.53.841.6.. So, I'm going to have to do something - the notification is annoying me. So, I guess I have to work out how to update it.
I hadn't even considered the VoLTE requirements.. I just assumed it would all work, even on a custom ROM. 4G did, I didn't think this would be any different.
Is VoLTE worth hanging on to? I don't really get it.. Is it like VOIP for mobiles?
Click to expand...
Click to collapse
I have had VoLTE working with Leedroid after I used the telstra 1.53 system/customize & parts of the build.prop on the 1.30 base... Haven't been able to get it working on 1.80 base.
Have had to use the telstra firmware for it work, doesn't work on WWE. So it is kinda a pain to get working.
VoLTE is better call quality and if you are on a call you can use LTE/4g to use the internet... Without VoLTE when on calls your phone 3g
EDIT - don't think OTA will work since you are rooted unless you went systemless root

I guess I don't 'appreciate' VoLTE as much as I should, because I rarely make phone calls..
Sadly, not Systemless root. So, I think I need to go back to stock, update and re-root. It's not something I've had to worry about before. So, it's kinda frustrating, and a little too complicated for me to totally understand.
I was going to de-brand it, and just run the WWE RUU.. But, maybe I'll wait for the 1.80 Telstra update and worry about it then.
I got rid of the notification
**Sent from a uranium powered typewriter**

Anyone experiencing an issue with NFC? While on stock 1.21.841.8 (and locked), worked without issue. Since updating to 1.53.841.6 (and unlocked), can't read my Opal card now ie no vibration, no sound, no anything. Haven't tested my tap & pay banking app yet (which did work without issue prior to updating).

Yes I also had and issue with NFC. Would not read opal card and was an absolute pain to try and read my Amex and Visa card.
Ended up getting another issue with it and returned the phone under warranty for NFC and the other issue.
Still waiting to get a phone back ?
Sent from my HTC One_M8 using Tapatalk

Yeah NFC doesn't work with mine now on 1.53.
I did get a vibrate and a sound when I was on earlier firmware but not now.
Just hoping that the 1.8 update fixes this stuff.......

pablo11 said:
Yeah NFC doesn't work with mine now on 1.53.
I did get a vibrate and a sound when I was on earlier firmware but not now.
Just hoping that the 1.8 update fixes this stuff.......
Click to expand...
Click to collapse
Thats if we get 1.8
I have a feeling we will miss that and get the one after that.

xlrate said:
Thats if we get 1.8
I have a feeling we will miss that and get the one after that.
Click to expand...
Click to collapse
Aparently they have stoped rolling the 1.80 update. Im on vodafone and there website has no update for the htc 10 so i agree that we wont get it

yldlj said:
Aparently they have stoped rolling the 1.80 update. Im on vodafone and there website has no update for the htc 10 so i agree that we wont get it
Click to expand...
Click to collapse
Tried reflashing the 1.53 firmware again (twice) to see if it fixes it, but it's still not working ie Can switch it on and off, but it does not respond to my opal card.
It's only taken Telstra until this month to push out 1.53, so who knows when (or if) 1.80 will happen. Now I'm trying to decide whether it's worth sending back for another handset or waiting to see if the next OTA will fix it. My biggest concern is that the replacement could be on 1.21 and I could possibly end up with the same issue all over again!

pablo11 said:
Yeah NFC doesn't work with mine now on 1.53.
I did get a vibrate and a sound when I was on earlier firmware but not now.
Just hoping that the 1.8 update fixes this stuff.......
Click to expand...
Click to collapse
I just tried to NFC on 1.53 and it isn't working very well, hardly at all. I got it to work 3 times in about 15 mins...
Previously I think when I was on 1.30 firmware it was working well before but just had to hold it near the head phone jack.
Any Telstra users want to test out the Telstra firmwares
http://forum.xda-developers.com/htc-10/how-to/2016-05-27-fastboot-flashing-firmware-t3387520
Make sure you back-up the rom & back up internal storage refer to later posts in that thread.

https://crowdsupport.telstra.com.au/t5/Device-Updates/Software-Updates-01-07-2016/td-p/585953 Telstra 1.80.841.8 firmware is coming 25-Jul
Leedroid is the best rom for Telstra users. Running it myself and working perfectly, now supports Telstra with carrier support & VoLTE working - thanks @LeeDroid
*Only works on Telstra firmware.

Install Ice yesterday (only got my phone Friday ), really like it over the stock rom.
Some people complained about the LED but I like it. My only complaint about my M8 was how bright the LED was specially in the dark when you're trying to get to sleep.
Another problem I'm having is file transfers freeze when using a USB 2 port on Windows 10.
I like my new M10 but not sure if I like it over the M8 as of yet. I preferred the speaker arrangement on the M8 and having the home, back buttons etc on the screen rather then down the bottom.
I have to admit I'm not a fan of the "Samsung" look at all which is why I bought HTC in the past to begin with. I didn't want to be a part of the flock.

Hey guys,
I'm looking to get the 10 but imported, could someone (especially looking for someone with Optus) check their box to see what specific model it is (e.g. 10h or 10u)?
Thanks guys

The Telstra model is a HTC 10h

ICE (InsertCoin) v2.0.6 supports Telstra also now too. Thanks @baadnewz

morgy59 said:
The Telstra model is a HTC 10h
Click to expand...
Click to collapse
Awesome, thanks morgy59

Found out that Telstra's policy for DOA/ELF replacements are within 30 days of purchase. Since a return will result in a repair, I'll wait to see if the OTA will fix the NFC issue first before sending back.
Has anyone experienced an NFC issue on Telstra stock, only to have it disappear after switching to a cusom ROM?

brantp said:
Found out that Telstra's policy for DOA/ELF replacements are within 30 days of purchase. Since a return will result in a repair, I'll wait to see if the OTA will fix the NFC issue first before sending back.
Has anyone experienced an NFC issue on Telstra stock, only to have it disappear after switching to a cusom ROM?
Click to expand...
Click to collapse
I found it worked perfectly fine on wwe 1.30 firmware using Leedroid. Now I'm on 1.53, hardly works at all
Sent from my SM-P605 using Tapatalk

It's doesn't read card on 1.53 on Optus build 710

Root new Android 7 stock ROM

Hi everyone!
New Android 7 Developer RUU is out. I remember that there were several problems with the last Android 6 security updates in September and October. So it wasn't possible to root with the latest SuperSU.zip
Instead you had to use an older version and update to the latest version with Play Store later.
Before I flash the Android 7 RUU, I would like to know if anyone already has experience with rooting latest Stock ROM?
Any problems which occurred? And if the root process was successful, which SuperSU Version have you used? Thanks in advance!

Njoatun said:
Hi everyone!
New Android 7 Developer RUU is out. I remember that there were several problems with the last Android 6 security updates in September and October. So it wasn't possible to root with the latest SuperSU.zip
Instead you had to use an older version and update to the latest version with Play Store later.
Before I flash the Android 7 RUU, I would like to know if anyone already has experience with rooting latest Stock ROM?
Any problems which occurred? And if the root process was successful, which SuperSU Version have you used? Thanks in advance!
Click to expand...
Click to collapse
I've used this to root stock Nougat ROM and it worked fine https://download.chainfire.eu/1014/SuperSU/SR5-SuperSU-v2.78-SR5-20161130091551.zip
Anyway make a backup.. just in case it doesn't work
EDIT: It will reboot the phone at least 2 times before booting into system

Mat08.cc said:
I've used this to root stock Nougat ROM and it worked fine https://download.chainfire.eu/1014/SuperSU/SR5-SuperSU-v2.78-SR5-20161130091551.zip
Anyway make a backup.. just in case it doesn't work
EDIT: It will reboot the phone at least 2 times before booting into system
Click to expand...
Click to collapse
Do we need to modify system in twrp? before installing this?

shaygia said:
Do we need to modify system in twrp? before installing this?
Click to expand...
Click to collapse
No there's no need, at least I didn't change anything and it worked well

I just wanted to add this as a note as I did not see anyone else having these issues in nougat (7.0). Do not install SuperSU 2.78-201609011115. If you do your mobile data option in the notification bar will be grayed out. Your cell signal will have a slash through it and cell signal will no longer work. I do not know if other versions of SuperSU will also cause this symptom.
If this happens to you restore from a backup in recovery or if need be run the RUU again.
Mat08.cc's linked version of SuperSU does work!!!! Thanks!

My m9 doesn't want to upgrade. After it download the Nougat ,it says that I'm running modified system. My phone is att but converted to developer edition. The way I was updating my phone each time so far was with RUU file and I didn't gave any issues until now. Please help . Thanks in advance.

dohcvtec said:
My m9 doesn't want to upgrade. After it download the Nougat ,it says that I'm running modified system. My phone is att but converted to developer edition. The way I was updating my phone each time so far was with RUU file and I didn't gave any issues until now. Please help . Thanks in advance.
Click to expand...
Click to collapse
Excuse me, I did not understand.. The phone has received the upgrade but can not install it?

Yes, that is correct. The issue was that my CID was 11111111. Changed it to BS_US001, downloaded, installed successfully. Now I just ran in another issue. Tried to root it so I did: twrp 3.0.2, then installed supersu-v2.78, device booted, cinfirmed rooted but doesn't recognize that there is a sim card inside. Ideas? Thank you!!!

dohcvtec said:
Yes, that is correct. The issue was that my CID was 11111111. Changed it to BS_US001, downloaded, installed successfully. Now I just ran in another issue. Tried to root it so I did: twrp 3.0.2, then installed supersu-v2.78, device booted, cinfirmed rooted but doesn't recognize that there is a sim card inside. Ideas? Thank you!!!
Click to expand...
Click to collapse
Have you installed this one << https://download.chainfire.eu/1014/SuperSU/SR5-SuperSU-v2.78-SR5-20161130091551.zip >> ? (2.78-SR5)

dohcvtec said:
Yes, that is correct. The issue was that my CID was 11111111. Changed it to BS_US001, downloaded, installed successfully. Now I just ran in another issue. Tried to root it so I did: twrp 3.0.2, then installed supersu-v2.78, device booted, cinfirmed rooted but doesn't recognize that there is a sim card inside. Ideas? Thank you!!!
Click to expand...
Click to collapse
Definitely an incorrect SuperSU apk. Use the one in OP of http://forum.xda-developers.com/one-m9/general/nougat-coming-t3513698

Okay. Will try and get back to you. Thanks
P. S. Am I the only ine who is experiencing Messages failing and sending reports to HTC? Ever since I switched to Nougat, every time when I receive/send a text the app fails and when I try to access notifications it fails automatically as well. Ideas? Thank you

idontkn1 said:
Definitely an incorrect SuperSU apk. Use the one in OP of http://forum.xda-developers.com/one-m9/general/nougat-coming-t3513698
Click to expand...
Click to collapse
Reporting back:
After installing the SuperSU that you gave, everything works normally. Thank you very much.
There is an update which my phone didn't want to install. It said that the update is for himaulatt and my phone is himaul. Is it because phone is rooted and with twrp recovery? When I install the update manually via RUU from laptop, works fine. It just pisses me off cause I have tk start from scratch with my phone but update is successful. Had this issue for a while now amd was trying to figure it out. I really don't want to keep wiping the phone every single time there is an update. Thank you in advance.
Best Regards

dohcvtec said:
Reporting back:
After installing the SuperSU that you gave, everything works normally. Thank you very much.
There is an update which my phone didn't want to install. It said that the update is for himaulatt and my phone is himaul. Is it because phone is rooted and with twrp recovery? When I install the update manually via RUU from laptop, works fine. It just pisses me off cause I have tk start from scratch with my phone but update is successful. Had this issue for a while now amd was trying to figure it out. I really don't want to keep wiping the phone every single time there is an update. Thank you in advance.
Best Regards
Click to expand...
Click to collapse
You might want to read the latest posts in the TWRP thread. The important part starts here.

Flippy498 said:
You might want to read the latest posts in the TWRP thread. The important part starts here.
Click to expand...
Click to collapse
I just read the threads you gave me. I understood the process. I will search for the zip file cause this seems to stop me right now. Everything else makes sense from top to bottom. Thank you very much once again.

Looking for some help getting off Vzw ROM to custom

Hello all,
Long story short I currently have an Unlocked 10, rooted, s off, and bootloader unlocked. I have flashed over the Verizon rom and radios last year and left it this way for a while. I'm getting to the point where I'm about ready for a factory reset but figured I might as well update if I'm going to do that. Better yet I'd like to get on LeeDroid but preferably on Android N.
So I need to update to an Android N ROM first, then over to LeeDroid. I can do it, but frankly I do this stuff so little that every time I get a little nervous. My 10 is my daily driver but I currently have a raggedy s6 here I can pop a sim in for a minute if needed.
So I'm wondering would it make sense to just do a backup, flash the latest Unlocked N version then flash LeeDroid? Wouldn't my Verizon radios stay where they're at, or will flashing those roms over write them? And, none of this flashing should overwrite my recovery, should it?
Also, I apologize if this is not appropriate but my other option at this point is to ask, are there any fairly well regarded XDA friends here with some spare time that would be open to taking 20 bucks or so to get me fixed up remotely over teamviewer or something?
Thanks for all your help. I don't post here often but when I do I always find the direction I need as someone who is not a frequent modder anymore lol.

Launchpadmcqu4ck said:
Hello all,
Long story short I currently have an Unlocked 10, rooted, s off, and bootloader unlocked. I have flashed over the Verizon rom and radios last year and left it this way for a while. I'm getting to the point where I'm about ready for a factory reset but figured I might as well update if I'm going to do that. Better yet I'd like to get on LeeDroid but preferably on Android N.
So I need to update to an Android N ROM first, then over to LeeDroid. I can do it, but frankly I do this stuff so little that every time I get a little nervous. My 10 is my daily driver but I currently have a raggedy s6 here I can pop a sim in for a minute if needed.
So I'm wondering would it make sense to just do a backup, flash the latest Unlocked N version then flash LeeDroid? Wouldn't my Verizon radios stay where they're at, or will flashing those roms over write them? And, none of this flashing should overwrite my recovery, should it?
Also, I apologize if this is not appropriate but my other option at this point is to ask, are there any fairly well regarded XDA friends here with some spare time that would be open to taking 20 bucks or so to get me fixed up remotely over teamviewer or something?
Thanks for all your help. I don't post here often but when I do I always find the direction I need as someone who is not a frequent modder anymore lol.
Click to expand...
Click to collapse
To minimize potential problems I would start fresh going from M to N.
Flash the full N RUU.exe. Flash the latest TWRP, then flash LeeDroid. New firmware, TWRP, and custom rom.

comstockload said:
To minimize potential problems I would start fresh going from M to N.
Flash the full N RUU.exe. Flash the latest TWRP, then flash LeeDroid. New firmware, TWRP, and custom rom.
Click to expand...
Click to collapse
Would you suggest Verizon N rom since I'm already on Verizon M or would Unlocked N be better?

Launchpadmcqu4ck said:
Would you suggest Verizon N rom since I'm already on Verizon M or would Unlocked N be better?
Click to expand...
Click to collapse
Get a copy of your current M rom for the firmware you currently have and download that. Remember, we're talking full roms not updates. Now get the latest N rom for your device (full ruu.exe). Now you have options. I would flash the N rom, then the latest TWRP, then LeeDroid. Any problems, and you can go right back to M. I always use TWRP 3.0.2-6 with M. So if I go back to M I flash that version of TWRP (from within TWRP itself) first. Take your time. You can do this. You can get the latest N rom from HTC's website. To get your M rom you'll have to search for it using your firmware numbers. Someone should have a copy.
BTW, you can watch ROOT JUNKY's videos on youtube as a refresher on the basics of flashing TWRP and so on. Don't use his files though. They're old.

comstockload said:
Get a copy of your current M rom for the firmware you currently have and download that. Remember, we're talking full roms not updates. Now get the latest N rom for your device (full ruu.exe). Now you have options. I would flash the N rom, then the latest TWRP, then LeeDroid. Any problems, and you can go right back to M. I always use TWRP 3.0.2-6 with M. So if I go back to M I flash that version of TWRP (from within TWRP itself) first. Take your time. You can do this. You can get the latest N rom from HTC's website. To get your M rom you'll have to search for it using your firmware numbers. Someone should have a copy.
Click to expand...
Click to collapse
Yeah I think you're right. I made it this far lol. But the N rom from HTC would just be the unlocked N wouldn't it, not Verizon? I know the Verizon ruu is over in the Verizon HTC 10 forum here so I could get that. Also I think I need to go brush up on firmware vs rom I tend to think they're the same thing but they're not, right?

Launchpadmcqu4ck said:
Yeah I think you're right. I made it this far lol. But the N rom from HTC would just be the unlocked N wouldn't it, not Verizon? I know the Verizon ruu is over in the Verizon HTC 10 forum here so I could get that. Also I think I need to go brush up on firmware vs rom I tend to think they're the same thing but they're not, right?
Click to expand...
Click to collapse
I see. By "unlocked" you mean the US unlocked GSM HTC 10. I wouldn't mess with trying to alter your radios right now. Yes, stick with Verizon on everything. LeeDroid should run fine with that. Installing a new HTC rom changes your firmware. It will be updated as you go to N. If you decide to back to M, it will be downgraded. Installing a custom rom won't change your firmware. A full rom is composed of several components. The firmware is one component.

comstockload said:
I see. By "unlocked" you mean the US unlocked GSM HTC 10. I wouldn't mess with trying to alter your radios right now. Yes, stick with Verizon on everything. LeeDroid should run fine with that. Installing a new HTC rom changes your firmware. It will be updated as you go to N. If you decide to back to M, it will be downgraded. Installing a custom rom won't change your firmware. A full rom is composed of several components. The firmware is one component.
Click to expand...
Click to collapse
Ohhh okay I follow. Yeah sorry I did mean the GSM Unlocked model, I bought direct from HTC. But I couldn't get it to work on unlocked firmware with Verizon so I ended up flashing the Verizon ROM and radio last year.
So I'll grab the Verizon RUU and flash that, then LeeDroid. And update my TWRP. Its long over due anyways lol
Can't thank you enough for your help. I'm going to give it a shot this weekend I think. I really want to run LeeDroid!

HTC 10 Home button and finger print not working

I unlocked and rooted 2 HTC Sprint 10 phones and installed Viper rom on them. I later discovered both home button and finger print are not working.
If you check settings, I can't even find finger print anywhere.
I don't know if anyone has experienced this before.

My guess is that the phones are running the "old" marshmallow firmware while a new Android Nougat rom is installed.

Mr Hofs said:
My guess is that the phones are running the "old" marshmallow firmware while a new Android Nougat rom is installed.
Click to expand...
Click to collapse
You might be right, how do I fix this.
Thanks

olalekanbabs said:
You might be right, how do I fix this.
Thanks
Click to expand...
Click to collapse
Does Viper no longer ask you which firmware you're on during install? If it still does, reinstall and choose marshmallow.
Else you could update your firmware manually, but safest/simplest route is backing up your phone and running the latest ruu, and then reinstall twrp and Viper.

Tarima said:
Does Viper no longer ask you which firmware you're on during install? If it still does, reinstall and choose marshmallow.
Else you could update your firmware manually, but safest/simplest route is backing up your phone and running the latest ruu, and then reinstall twrp and Viper.
Click to expand...
Click to collapse
Did as advised, everything is working perfectly now.
Thanks guys.

Just in case anyone comes across this thread as a search result, the exact same symptom can be caused by dropping your HTC 10 the wrong way. My wife found that out several months ago. Only having it exchanged would fix it.