[ROM][11.0_r58]JAGUAR ONEPLUS 8T OFFICIAL V23 Updated August 6, 2022

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Cats_PJs

Senior Member
Mar 23, 2014
210
70
hey there I tried like 100 of times to flash this rom and couldnt do it, I tried both vanilla and gapps v21 and none of them seems to work for me!!! I have a oneplus 8t and I followed the installation guide process and didnt work out! any help!! ???
I installed twrp and flashed in recovery. Flash twrp again after ROM and reboot recovery. Factory reset. Done. Works for me, don't know if it's recommended
 
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parag0n1986

Senior Member
May 3, 2015
322
75
36
LG V20
OnePlus 7 Pro
@optimumpro I'm not sure why you kicked me out of your telegram channel and banned me, but all I was asking for was help installing your ROM.... I was not rude, was respectful, and now I'm really confused. Whatever though I guess... I followed the instructions exactly on the thread I still can't contact the Google servers when I sign in. Not sure why saying that got me kicked, but have a nice life Good luck with your ROM
 

tinybear2

Member
Dec 30, 2016
16
2
I just came from LineageOS and flashed v21 and noticed that DC dimming does not work. The setting is located in livedisplay, anti-flicker. and changing the toggle does not do anything. I don't know if it is related, but the color profiles also do not work.

I used this rom in the past on the OnePlus 6 and DC dimming was working there. It also works on the current LineageOS 18.1 for this device if you need a reference for the 8T.

Could you look into implementing DC dimming? I can send a log if you can't reproduce.
 

optimumpro

Senior Member
Jan 18, 2013
7,469
14,816
OnePlus 8
I just came from LineageOS and flashed v21 and noticed that DC dimming does not work. The setting is located in livedisplay, anti-flicker. and changing the toggle does not do anything. I don't know if it is related, but the color profiles also do not work.

I used this rom in the past on the OnePlus 6 and DC dimming was working there. It also works on the current LineageOS 18.1 for this device if you need a reference for the 8T.

Could you look into implementing DC dimming? I can send a log if you can't reproduce.
Antiflicker is supposed to reduce flickering in the dark only. It will do nothing in normal conditions.

According to my logcat, profiles do get changed, i.e. 'set profile to 0, 1, 2, 3'.
 

optimumpro

Senior Member
Jan 18, 2013
7,469
14,816
OnePlus 8
Sorry, I forgot to mention that my testing was in the dark at a low brightness setting.
If the normal minimal brightness does not jump in the dark, which it actually doesn't, anti-flicker won't do anything.

Oneplus 6 has its own dc dimming in OneplusSettings, but I remember (when I used Oneplus 6), it also did nothing, because normal minimal brightness never jumped in the dark.
 

tinybear2

Member
Dec 30, 2016
16
2
If the normal minimal brightness does not jump in the dark, which it actually doesn't, anti-flicker won't do anything.

Oneplus 6 has its own dc dimming in OneplusSettings, but I remember (when I used Oneplus 6), it also did nothing, because normal minimal brightness never jumped in the dark.

I'm sensitive to the lower PWM of Amoled panels, and could notice a difference with the setting on LineageOS. It's can be subtle shift to the naked eye, but it's definitely reduces my eyestrain while using it.

I noticed that the feature works on Lineage based roms, specifically I tried out the feature on CrDroid 7 and the CalyxOS beta and both have live display toggles that seem to enable DC Dimming.

I'd be great if I could get it to work, as this is by far the best rom I have tried for the 8T so far.
 

optimumpro

Senior Member
Jan 18, 2013
7,469
14,816
OnePlus 8
I'm sensitive to the lower PWM of Amoled panels, and could notice a difference with the setting on LineageOS. It's can be subtle shift to the naked eye, but it's definitely reduces my eyestrain while using it.

I noticed that the feature works on Lineage based roms, specifically I tried out the feature on CrDroid 7 and the CalyxOS beta and both have live display toggles that seem to enable DC Dimming.

I'd be great if I could get it to work, as this is by far the best rom I have tried for the 8T so far.
That's because my minimal brightness value is lower than in Lineage, so, in Lineage anti-flicker toggle makes it lower, that's why you see the difference there. What I am saying is: in the dark, especially with night light enabled, you have the same conditions, as in Lineage with enabled anti-flicker.
 

tinybear2

Member
Dec 30, 2016
16
2
Sorry to bother you again, but I noticed something else. This time it is in regards to the FOD sensor.

When reading the fingerprint it will temporarily light up the entire display to max brightness. I tried doing a dirty flash to switch the boot slot, and when that didn't work I attempted to do a clean install. Unfortunately neither solved my issue.

I'm attaching a video of it in action, hopefully it better illustrates my problem. (I am also attaching a zip file in case the embed video doesn't work)

edit: I have also added the output of a logcat. Hopefully this helps.

 

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  • logcat.txt.zip
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Last edited:

parag0n1986

Senior Member
May 3, 2015
322
75
36
LG V20
OnePlus 7 Pro
Sorry to bother you again, but I noticed something else. This time it is in regards to the FOD sensor.

When reading the fingerprint it will temporarily light up the entire display to max brightness. I tried doing a dirty flash to switch the boot slot, and when that didn't work I attempted to do a clean install. Unfortunately neither solved my issue.

I'm attaching a video of it in action, hopefully it better illustrates my problem. (I am also attaching a zip file in case the embed video doesn't work)

edit: I have also added the output of a logcat. Hopefully this helps.

View attachment 5649081
Be careful asking too many questions. You mlght get banned...
 

JedidroidX

Senior Member
Jan 30, 2015
136
50
Just wanted to say that that this rom is maybe the "best" A11 for the Oneplus 8t by far. OP is also very reliable and actively tuning and tweaking with constant updates. Love how fast a build comes out every month with the new security patch.

It's rare to see such active development and for a while. "OptimumPro" you get many kudo's and thanks!

Thinking of doing an A12? Was just wondering, and thanks again!
 
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tinybear2

Member
Dec 30, 2016
16
2
Sorry to bother you again, but I noticed something else. This time it is in regards to the FOD sensor.

When reading the fingerprint it will temporarily light up the entire display to max brightness. I tried doing a dirty flash to switch the boot slot, and when that didn't work I attempted to do a clean install. Unfortunately neither solved my issue.

I'm attaching a video of it in action, hopefully it better illustrates my problem. (I am also attaching a zip file in case the embed video doesn't work)

edit: I have also added the output of a logcat. Hopefully this helps.

View attachment 5649081

@optimumpro
I'm attaching a dmesg log since I forgot to upload one. If you need any more logs/information let me know.

Hopefully you can find a fix.
 

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  • dmesg.zip
    92.6 KB · Views: 5

iTalisman

Senior Member
I need some info before flashing this masterpiece ROM :)

1. I want to flash the vanilla version then flash NikGapps Core and follow the regular procedure just like other ROMs. Will it be OK?

2. Can I install the Magisk v25.1 apk just as its mentioned in the OP and it would update it to magisk 25.1?

3. I am currently using AICP A11 and have definitely AICP populated on both slots since I have updated the ROM many times. Is it mandatory to populate both the slots with OOS A11 or I can just simply flash it like I flash other custom ROMs?
 

1freeflyer

Member
Oct 13, 2021
13
0
I recently loaded your ROM to compare to Havoc. Overall, i like this better save for the Camera and gallery apps.
Would you have interest in porting the app for those that Havoc uses?
 

optimumpro

Senior Member
Jan 18, 2013
7,469
14,816
OnePlus 8
I need some info before flashing this masterpiece ROM :)

1. I want to flash the vanilla version then flash NikGapps Core and follow the regular procedure just like other ROMs. Will it be OK?

2. Can I install the Magisk v25.1 apk just as its mentioned in the OP and it would update it to magisk 25.1?

3. I am currently using AICP A11 and have definitely AICP populated on both slots since I have updated the ROM many times. Is it mandatory to populate both the slots with OOS A11 or I can just simply flash it like I flash other custom ROMs?
1. You should flash the full version, with minimal Gapps included.

2. Magisk 25+ has issues with several roms and Android versions, i.e., the manager gets stuck on logo screen. This has been reported many times, but for some reason Magisk devs, instead of fixing the issue, consistently close the reports for various reasons see here, here, and here. However, Magisk 24.3 works fine and passes Safetynet.

3. If AICP 11 works on both slots, i.e., you've updated AICP and it worked on both slots, you don't need to flash OOS-11.
 
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  • 1
    Try using twrp recovery to flash the magisk zip. Twrp works great with android 11 such as Jaguar. Don't adb side load, in twrp just use the install option and select the magisk zip.
    I think I did it right. I used twrp to flash 24.3 magisk as a zip. SafetyNet passes will no issue. Banks and gpay works.
    1
    August 6. New release V-23

    1. August security patches
    2. Android r58
    3. 5G network options in OneplusSettings

    Download in post #3.
    1
    Can someone post a magisk patched boot image please. I'm currently away without my laptop on vacation with family and lost root when updated.
    This is not a patched image, but if you install Magisk 24.3 manager and put the attached onto internal storage, you can patch it on your phone. Then you can flash the patched kernel normally.
  • 14
    TELEGRAM CHANNEL ADDED: HERE
    TELEGRAM CHAT GROUP: HERE

    Jaguar is available on locked bootloader with working root (Magisk)

    VERSION 19 FIXES SAFETYNET ISSUES WHEN USING MAGISK 24.3
    See complete instructions Here


    You can actually use alarm when the phone is shut down. It would boot 2 minutes prior to scheduled time and trigger the alarm on time

    This is official build of Jaguar Rom.

    I have been building Android roms since 2012 for various devices including multiple Sonys, Lenovo Zuk, Oneplus 3, Oneplus 5 and Oneplus 6. You can check my Oneplus 6 or
    Oneplus 6T or Oneplus 8 threads and browse my profile.

    Jaguar rom is focused on hardening of AndroidOS and kernel. As such, the rom has hardened bionic, art, framework and tightened security.

    1 Rom control with custom Power options, Statusbar, Buttons, Navbar, Quicksettings, Lockscreen, Notifications, Gestures, Themes etc...

    2. Heavily modified Art, Bionic System/Vold and System/Security

    3. Telephony response to Type Zero sms ('silently acknowledged') disabled

    4. Toggle to disable Captive Portal logging.

    5. Speakerphone proximity sensor toggle - could be set to automatically switch to speaker when not at the ear

    6. IMEI and phone numbers hidden in About menu

    7. Built-in encrypted DNS providers, such as: Cloudflare (US); LibreDns (Germany); AdguardDns (Cyprus); and PowerDns (Netherlands)

    8. Wakelock and Alarmblocker

    9. Fully working Call recording with the button visible in Dialer

    10. A choice between the latest Bromite and Vanadium webview

    11. Deskclock app modified to work with PowerOn alarm. The app will boot the phone 2 minutes before scheduled time to trigger the alarm on time

    12. Default Dark mode

    13. All regular customizations plus. You tell me which feature is missing.

    14. Prebuilt Magisk 23. You don't have to flash it, just install the attached Magisk.apk.


    Bugs: AOD working, but no info shown on lockscreen (works fine on other Onepluses)

    Install instructions:

    If this is your first time coming from stock to a custom rom, you MUST have Android 11 stock in both slots. So, either have a few stock updates over the air (to populate the second slot) or flash stock rom with TWRP

    1. Install Jaguar recovery via fastboot: reboot in fastboot and execute the following commands on your connected PC terminal:

    Code:
    fastboot flash recovery_a recovery.img
    fastboot flash recovery_b recovery img

    2. Download the rom on your PC. Boot the phone into recovery, set recovery for sideloading, then type on your PC terminal (which should be opened in the same directory where you had downloaded the rom):
    Code:
    adb sideload 'name of the rom'

    3. Factory reset and reboot. You are done. If you want root, DO NOT FLASH MAGISK ZIP, just install Magisk manager (apk) as a normal app.

    PICO Gapps has been tested successfully with this rom.

    All downloads are in post #3

    XDA:DevDB Information
    JAGUAR R, ROM for the OnePlus 8T

    Contributors

    optimumpro

    Kernel Source Code: HERE

    ROM OS Version:
    11.x R
    ROM Kernel:
    Linux 4.x
    ROM Firmware Required:
    no lower than Android 11
    Based On: AOSP/Lineage/DirtyUnicorn/Crdroid

    Version Information
    Status:
    Stable
    Current Stable Version: See post #3
    Stable Release Date:
    2021-01-26

    Created: 2021-10-05
    Updated: 2022-08-06

    Credit: AOSP, Lineage, DU, Crdroid, GrapheneOS, CalyxOS Bromite webview
    7
    The rom could be used on locked bootloader with ROOT (donate feature) with or without Gapps.

    The benefits of LOCKED BOOTLOADER combined with WORKING AVB-2 protection are:


    Get back your DRM L1 certificate. Most banking apps will work regardless of Magisk.

    Security: Nobody and nothing can modify Kernel, Recovery and Virtual Partitions without triggering a red screen of death with the message 'your device is corrupted and cannot boot'.

    At that point, the only option is to unlock bootloader. But, if a user had previously disabled OEM unlock in Developer settings, then unlocking becomes unavailable, and so does flashing via fastboot. In other words, if your phone gets into the hands of an adversary, their only option is to use MSM tool to make the phone work again, but no access to your data or any other partition.

    Why prebuilt Magisk? Because you can't modify kernel or recovery on locked bootloader post installation, and that's exactly what Magisk does.

    See attached som screenshots:
    5
    November 4, New release V-14

    1. November security patches
    2. Android r49
    3. Updated vendor blobs
    4. Ambient display sensor fixed
    5. Snap camera replaced with Open Camera

    Download in post #3.
    5
    December 7: New Release V-15

    1. December security patches
    2. Android r50
    3. FOD features are back
    4. Nightlight and NightDisplay with picture adjustment and antiflicker are back
    5. Double tap to wake is visible
    6. Safetynet should pass (need to confirm)

    Download in post #3.
    4
    October 16. Updated release:

    1. Removes the leftovers of Livedisplay that was suppressing AOSP implementation
    2. Face unlock fully working.

    Download in post #3.