yashsingh1/xdaforums huggingface dataset:
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Phobophile89:
Okay, so i followed these instructions, but since my a slot was corrupt, i proceeded to flash on my working b slot and now i got no phone.

When i connect my phone to the HTC flashing tool i get an error about my battery being under 30% even though it's full.

Got no phone. help please?

also, i can't boot into twrp to recover because of 3 errors:

1 (Status read failed (Too many links))

2 FAILED (remote: 'Failed to load/authenticate boot image: Load Error')

3 it will just hang during download.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Max128:
What do you have do for having a corrupt slot?

Flash your RUU on slot a with the SD card on download mode. You can find it in the section guide on the phone. You should be ok after that.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] mikalovtch:
​

ViperExperience Alpha 4 (07 June 2020)

Fixes& Updates

5 June 2020 Security patch

[MENTION=1915408]phhusson[/MENTION] patches v218

Fixed autobrightness

Some internal changes

AndroidFileHost​
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] hojnol:
this is pure awesomeness, thanks!
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] wlodarr:
Hi thanks for rom

I got two problems on it (last version Alpha 4)

1. bluetooth sound

-without patch I can connect but no sound on my bt headphones

-with patch I can connect but after few seconds dissconnecting and connecting again, bt app force closes, no sound on headphones

2. Know issue with lodspeak mode after official Android 9

-On videocalls on messanger, Whatsapp etc. microphone dont works, nobady can hear me

-on standard call evrything is ok, but after change mode to hands free microphones dont works

Any ideas?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Ryu08:
It seems like the brightness do react to environment, but never drop below 59% when automatic brightness is on (in Alpha 4).
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Phobophile89:
I've followed the instructions...

Unlocked bootloader from htc page,

Booted into twrp.

Installed update.zip

Flashed system.img from download mode.

That corrupted my slot a.

After that i tried RUU from htc website. The flashing got stock at 6% on pc and 0% on the phone.

Recovered RUU and got stock at 0% on pc and 99% on phone.

I went and tried this tuto again but twrp failed to switch to slot a (reading error or something)

I tried the tuto on slot b and obviously got the same result.

Now my phone won't boot twrp, can't flash using (fastboot flash recovery/system/etc) reading error again...

I haven't tried flashing from sd yet...

Got a link to a good tuto that won't brick my phone even harder???
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Max128:
Is the system is corrupt. On the bootloader you got a yellow message : Your device is corrupt. It can't be trusted and may not work properly. I know that I have got this message the other day after flashing phh rom directly... Many people have got this problem after flashing some gsi is random.

I have found the solution on google and.. Is need to restore at stock... So.. You need to flash your ruu from SD method like I already told you and is will be fine. I do not know what you have done but take your ruu from here https://androidfilehost.com/?w=files&flid=281261 and like I said look in the guide section for flashing ruu.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Phobophile89:
Thank for the tip.

Strangely after a whole day shutted down, the phone decided to boot directly into twrp i had flashed on recovery since like yesterday.

While the recovery from twrp didn't work, i reran the official HTC RUU and, my phone decided to cooperate. My phone is now working, both slot a and b...

That mean i'm retrying the tuto...

EDIT:

So i can't push update.zip because:

adb server version (31) doesn't match this client (41); killing...

* daemon started successfully

adb: error: failed to get feature set: device offline

so i copied update.zip directly into my sd card.

Also i'd need step 10 to be more developped, TWRP have a mean to install .zip, but "flashing from recovery ui" i don't get it. TWRP doesn't have a "recovery" menu...

I installed update.zip, multiple mounting error, and failed verification...

The rest went well.

My issue was my corrupted a slot from the beggining. So being on the a slot i mandatory!!!

Edit 2:

3798 notifications laters, not only Google Play Service kept stopping, but the whole ui froze...

I can't keep my wi-fi open, i can't retrieve the android id needed to permit the phone to run while not being play protect.

And the official HTC RUU won't work because it's the version number...

Damn...

Thank you very much!
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Casper81:
Play store error

HI, thanks for the great rom, it saved my U12+ from replacement. Only since a few days I get the message "Google play store has stopped working" (in dutch) every minute. I did a clean install of the alpha 2 version, when alpha 3 was available I did a dirty flash witch worked fine. Only after a few weeks the message comes out of the blue and can't use play store anymore. Yesterday I updated the alpha 4 version (dirty flash) and several reboots but unfortunately it was not the solution for the problem. Does anyone has an idea what is going on? Thanks!
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] lopek1986:
Volte Working?????
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jorisvdende:
I have the exact same problem, but after a clean install. Too bad :(

I'll try and flash (clean) again tonight, but since you have the problem too, I doubt that'll solve it.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jrocka312:
I am experiencing the same problem. Playstore crashes every few seconds. I did update to Alpha 4 via dirty flash.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jorisvdende:
Clean flashed 3 times this evening. Every time Google Store is crashing whithin seconds after 1st boot. Very strange.

Can I safely go back to ViperU12+ 3.0.0 | 2.55.401.1 from this one? I'll try anyway, since there are not that much options left I'm afraid...
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] just-only:
I hope that developers can solve the problem of Bluetooth headsets as soon as possible. After all, this function is quite practical. Thank you
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] marcsiev:
do someone else have problems with mobile data?

SOLVED.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] äppler:
worked for me now beside the bluetooth audio not working. thanks.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] marcsiev:
Vendor fix if Bluetooth is not working at all or music over Bluetooth?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Danfinelli:
So I get thru this no problem and Google device is certified. Pass safety net etc. I can even use Pokemon go. Only thing is camera now crashes everytime I open. Also Wells Fargo doesn't seem to work either but I care more about a camera fix please
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Sirbo_239:
Same here in alpha 1. Haven't upgraded till now
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] marcsiev:
Why the vendor fix is "down"?

Is it not fixing Bluetooth audio anymore?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Danfinelli:
I found the file searching through android file host. Downloaded and dirty flashed. Works great. I couldn't even get the audio to play through the Bluetooth before I flashed. Now it works like new. I "fixed" my camera problem form earlier by just living with a device that's not certified and keeping my original finger print. Surprisingly I can still play Pokemon lol. Great ROM guys. If not for you I wouldn't have a phone right now. I tried to flash my backup because of the camera problem and it just got stuck in a bootloop. So I'm stuck on this ROM but with a camera and Bluetooth I'm not complaining. Thanks again
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Sephiroth43:
I had problems with playstore crashing too, cts mismatch fail but basic integrity was fine but my device was uncertified in playstore. I couldnt run Magisk hide props and busybox in termux i got an error with services.sh.... . But when i deleted all Magisk modules except hide props and busybox i could change cts and my device got certified by playstore and since then play store run normally without force close.

But i got one strange bug, if i call someone i cannot hear anything from the phone speaker. but by switching to loudspeaker everything is fine.

SO in conclusion i would say the problems lies in the modules for now i think. With hide props and busybox everything good so far.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jorisvdende:
Good to see you got it solved.

Though my Play Store is force-closing, and I don't even use Magisk...

I installed the rom by temp booting twrp.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] Sephiroth43:
I forgot to mention, that i have activated Magisk Hide too. I am not an expert, maybe it is required to use magisk + magisk hide in order to get the device certified.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] The_Walking_Playground:
Hi,

Downloading and installing the latest Play Store from APKMirror solved the force closing issue for me.

TWP
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jorisvdende:
I tried earlier and it didn't work.

I just now tried again and the latest (today's) apk seems to have solved it!

Thanks!!

Note: I'm now setting up my new OnePlus 8 pro :laugh:
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] marcsiev:
I am so Glad, that the system works perfekt now.

Sense works, Bluetooth audio works (in car, not on Bluetooth in-ear speakers), camera works.

I flashed the pixel experience from March first, than the viper experience dirty over it.

AWESOME.

now I don't need to buy the Pocofone F2 Pro

---------- Post added at 12:12 AM ---------- Previous post was at 12:11 AM ----------

Worked for me. Thanks
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] marcsiev:
Flashing the fix was maybe just the 1st part of solving Bluetooth.

2nd is deactivate hd option (look screenshot)
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] just-only:
I have flashed the patch but there is no HD option, nor can I use the Bluetooth headset as the output:confused:
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] marcsiev:
It's strange. I was in my car yesterday and music streaming was possible with Bluetooth.

At home with devices not. After I disabled the HD music thing, my devices worked

My car Bluetooth got no hd., My earphones got it.

So I'd has to be the codec from devices I think
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] k9online:
U11 Plus A-Only

How hard would it be to get this ROM running on my U11 Plus? I had BlissBass for Treble running quite smoothly before, but went back to stock simply for my EdgeSense capabilities (love squeezing for flashlight, brilliant :) ) However, as I'm sure you know, the U11 Plus is A-Only, I'm quite tech savvy but have never really messed with anything too technical as far as Android ROMS. I've found guides on converting A only to A/B, but none in the other direction. I greatly miss the days of running ViperOne and would LOVE to get to use this ROM without having to upgrade to a U12 Plus. Any direction/assistance in what I could try would be greatly appreciated. I don't like asking for people to do the work for me considering all the hard work you already put into projects like this, so if you think it's something I could do on my own, I'd be willing to try. Thank you in advance.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] mariosaraylian:
k9online:

Unfortunately, it's not THAT simple. Different phone, different Firmware, different hardware footprint/platform.

The Devs would need to re-write and port it over to the Firmware for the U11+

Also, check your PM Inbox...
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] k9online:
Actually, this is a GSI. So it shouldn't be that difficult whatsoever.

It even mentioned in the description that it hopes to be a perfect option for people without HTC devices that would like to take advantage of HTC software or people like me that don't want to give up things like HTC Edge Sense. The U11+ shouldn't be a far cry in terms of a GSI based ROM. I'm hopeful at least. :)
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] marcsiev:
Camera fix GCam

Could someone send me the original file from Rom?

System/vendor/lib/hw

Filename

com.qti.chi.override.so
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] GaetanoS.89:
What happen? Why you need that file?

I have one but it is not the original one, is the one modified to let the Gcam working.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] hek.je:
I'm trying to download Viper Experience 10 GSI (Alpha 4) from androidfilehost, but keep getting an error "OOPS! no mirrors found."

Anyone here with a backup link?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] hek.je:
I'm in trouble.....

Okay. I managed to download Viper Experience 10 GSI (Alpha 4), and tried to install it according to the instructions in the 1st post.

The phone I'm trying to flash just got back from the shop as the screen was not responding anymore.

The shop fixed it, but did reset the phone too (it was rooted, but still on the standard rom).

As it was reseted, I wanted to give this Viper ROM a try. (used to have it on my old HTC10).

Anyway. I'm now looking at the screen showing me This device is corrupt. It can't be trusted and will not boot.

The device_state is Unlocked, and I can still boot in to TWRP, but thats about it.

When in TWRP and going into Reboot it is telling me that I am in Slot: B

(I might have wiped slot A?)

I still have an adb connection too.

Any advice to get this to work is appreciated.

Thank you and please stay safe
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] The_Walking_Playground:
Hi,

The vbmeta zip from the OP only patches slot a. You would need to patch slot b since that's the current slot you're on. I modified the zip from the OP to flash to both slots. Try flashing that and see if you boot.

TWP
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] hek.je:
Thank you. I'm going to give this a go later today.

I will report back to you.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] 禾:
bluetooth problem

Bluetooth not working，what should I do

Can't connect and play audio.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] The_Walking_Playground:
Hi,

I installed the latest version of the ROM, flashed the BT/Vendor fix zip, and then formatted data in TWRP for a clean flash, and BT audio works fine for me. Maybe you should try that.

TWP
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] hek.je:
Okay. Got Viper alpha 4 on the phone, however when setting things up it keeps complaining that the device is not Play Protected.

When clicking OK, it keeps hanging on "Just a sec..."

Also. So now and then during this process I get a popup with "Sense Home keeps stopping", and a popup about "Google Play service keeps stopping"
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] marcsiev:
For the Sence Home problem go to the settings and give all permissions
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] hek.je:
Unfortunately it does not boot into the system so I can not change this setting.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] hek.je:
Over and over again :(

I've absolutely no clue how to fix this.

It keeps looping....

And back to screen 1 again...
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] hek.je:
I'v gone back to RUU for now.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] shjeanpy:
Please let me know if this realase can be flash on another device than HTC, thanks in advance
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] elimiriel:
About VoLTE

I've grasped some logs for you to help issue about VoLTE. I think there are troubles on linking/missing files(but even stock /system doesn't have these files), and permissions. The logcat inside attachment says

CANNOT LINK EXECUTABLE "/vendor/bin/hw/vendor.trustonic.*": library "vendor.trustonic.*.so" not found
Permission Denial: android.telephony.action.SIM_SLOT_STATUS_CHANGED broadcast from com.android.phone (pid=2133, uid=1001) requires android.permission.START_ACTIVITIES_FROM_BACKGROUND

and other errors.

* I used this patch also.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] wlodarr:
I flashed viper from full stock rom (with permanently twrp) worked very well

then i wanted to back to stock pie but now ruu cant flash,

hosd_signed.img_b@FAIL

8 RU_SIGNATURE_FAIL

8 RU_SIGNATURE_FAIL

FAIL8 RU_SIGNATURE_FAIL

only oreo ruu working but no ota updates

if I want flash again viper phone booting with google logo but screen is blinking and does not respond to touch
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jrocka312:
Is anyone having issues enabling high accuracy in location? Even though my settings are on, apps that need high accuracy are unable to see this. Anyone having the same issue?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] just-only:
I want to know if there will be an updated version in the future?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] donmarkoni:
IMO you should update your manners first.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] xth88312:
Hi,I follow the tutorial step by step and finish system.img After that, the restart prompt is as shown in the figure. What is the reason for this?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jrocka312:
Location doesn't work at all actually. Anyone have any ideas?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] mariosaraylian:
OS is not installed correctly. Follow these steps exactly:

Starting from Stock:

1. Boot latest official TWRP.

2. Perm Install that same TWRP using Install Recovery Ramdisk.

3. Flash VBMETA zip (make sure you're on "Slot A" first).

4. Flash ViperExperience System Image.

5. Format Data - > (Type Yes).

6. Flash BeyondStock Kernel.

7. Reboot TWRP Recovery.

8. Flash Magisk.

9. Reboot to System.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] xth88312:
Thanks, I'll try again according to your steps.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] The_Walking_Playground:
Hi,

That looks like the same problem someone else previously posted. See here for the solution: https://xdaforums.com/u12-plus/deve...erience-alpha-1-android-t4063321/post82972469

TWP
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] xth88312:
thanks a lot
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] teh_pwnrer:
I cannot flash temp recovery

it says in download mode when I type fastboot boot recovery.img sending okay then booting... and it hangs

on the phone it says flashing 1/1 done

start downloading

I cannot get it to boot temp recovery in fastboot mode but adb devices only works when I am booted into android I think my usb/mtp drivers are out of date and HTC has deleted the sync manager off the website to download new drivers

does anyone have the proper usb/mtp drivers available for download?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] JEANRIVERA:
the instructions are clear on the OP, to boot temp recovery it must be done in bootloader mode, not download mode. :eek:
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] teh_pwnrer:
PS C:\platform-tools> fastboot boot recovery.img

Sending 'boot.img' (34432 KB)

then just hangs there nothing happens on the phone screen it just hangs out at the bootloader screen
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] mawoods75:
I had the same problem at one time. I ended up trying different cables, a different version of twrp, and even a different pc. What finally worked was using the latest official twrp along with my surface pro 6 rather than my laptop. I also downloaded just the platform tools package, not the full android studio SDK.

I would recommend:

- uninstall platform tools

- download and install latest version of platform tools

- reinstall htc sync manager, then uninstall and leave phone drivers

- start from a booted phone

- connect your cable and make sure your device is recognized

- adb reboot bootloader

- fastboot boot twrpname.img

That should get you into twrp.

---------- Post added at 12:49 AM ---------- Previous post was at 12:32 AM ----------

Video does not work for me either. Camera seems to work fine, but video hangs at 0:00 and I have to force close the camera app. The only other issue I've found is with bluetooth - it won't stay connected and stream audio to my wireless earbuds with a microphone. I can, however, connect and stream to a regular wireless speaker and my bluetooth adapter in my vehicle just fine. Issue seems to be devices with a microphone - which seems to be a common issue across most gsi roms from what I read (in call bt not working). However, Viper is the only gsi rom I can get to connect to my non-mic bt devices; aosp, lineage, resurrection remix all won't connect to any bt device for me.

Two minor issues with Viper - otherwise, great job team! Can't wait for the first beta and stable releases.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jhr5474:
I tried flashing this on my Dugl and it told me that it cant be flashed on a production model? any ideas?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] äppler:
For sound I disabled the HD from headphones. Worked for me
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] jrocka312:
Does anyone ele experience issues with location? I cannot get applications to recognize high accuracy. This is enabled in settings.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] mawoods75:
That worked for audio streaming - thanks for the suggestion! However, in-call Bluetooth still doesn't work.
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] äppler:
I don't want a date but is an update coming?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] JEANRIVERA:
yes, please stay tuned ;)
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] äppler:
Great news to start my working day;)

At the moment I'm back on stock. I make astro photos but long time shoots does not worked for me. Pro mode HTC camera app

Any idea?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] äppler:
And why Not for our Phone an official Android 10?
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] mikalovtch:
ViperExperience Alpha 5 Update

​

ViperExperience Alpha 5 (16 August 2020)

Fixes& Updates

5 August 2020 Security patch

[MENTION=1915408]phhusson[/MENTION] patches v222

Added EdgeSense settings to Settings

Added EdgeSense QS Tile

Some unvisible changes in system for futher updates like OTA, FaceUnlock

P.S. At this moment I'm not able to work on ROM fully. Unfortunately, my U12+ doesn't turn on anymore and I have to wait and send all my builds to testers that not so much effective like when you do it by yourself. I hope all problem will be solved soon and I will be able to work on the rom fully. A lot of things like FaceUnlock, all Camera features and OTA Updates require deep learning of all mechanisms in original HTC U12+ ROM and it take a lot of time. So please be patient and sorry me if smth doesn't work properly. I'm trying to do all my best that I can.

AndroidFileHost​
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] sardroid:
Is this link ok? 3. Download „vbmeta_noverity.zip“ from Androidfilehost.com

When flash update.zip : E3004: This package is for "beyond2" devices; this is a "htc_imedugl". Any solution?

Updater process ended with ERROR: 7

Error installing zip file '/externat_sd/update.zip'
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] The_Walking_Playground:
Hi,

Try the one here: https://xdaforums.com/u12-plus/deve...erience-alpha-1-android-t4063321/post82972469

TWP
[HTC U12+ ROMs, Kernels, Recoveries, & Other Develo] sardroid:
Same error.