[ROM][11.0_r56]JAGUAR ONEPLUS 8 OFFICIAL V21 Updated June 7, 2022

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optimumpro

Senior Member
Jan 18, 2013
7,414
14,768
OnePlus 8
thanks...currently sitting at 70% for 20 mins now. you've said before this is normal...should i just let it finish? what could i do if it fails to flash?
It should take no more than 3-4 min. If you have step 2 on the bottom of the phone screen and 'adb; failed to read command: Success' on PC terminal, you are done. Otherwise, shut down the phone and repeat.
 

cjvzla

Senior Member
Apr 25, 2011
309
27
OnePlus 8
It should take no more than 3-4 min. If you have step 2 on the bottom of the phone screen and 'adb; failed to read command: Success' on PC terminal, you are done. Otherwise, shut down the phone and repeat.
shut it down and tried again and got : adb: failed to read command: No error , phone still says step 1/2 at the bottom, should i try again?
 

optimumpro

Senior Member
Jan 18, 2013
7,414
14,768
OnePlus 8
May 29. New release V-20.2

1. Captive portal now On/Off
2. Addressed some apps crashing with message "missing Internet permission'
3. HBM fixed, now fully working (Auto HBM is recommended with trigger set to 50000 lux in Oneplus Settings)
4. One shot auto-brightness
5. In-call volume increased for Speaker and Headset

Download in post #3.
 
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scorpio76r

Senior Member
Jan 10, 2016
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All over like street lights
May 29. New release V-20.2

1. Captive portal now On/Off
2. Addressed some apps crashing with message "missing Internet permission'
3. HBM fixed, now fully working (Auto HBM is recommended with trigger set to 50000 lux in Oneplus Settings)
4. One shot auto-brightness
5. In-call volume increased for Speaker and Headset

Download in post #3.
Thank you for this update. I have been able to see my phone screen now while outdoors in sunny areas. 👍
 
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optimumpro

Senior Member
Jan 18, 2013
7,414
14,768
OnePlus 8
June 7. New release V-21:

1. June security patches
2. Android r56
3. Automatic sleep/suspend mode (scheduled by a user) in Settings/Battery
4. 'Internet permission missing' issue with several apps fixed. Now, all apps including Googleplay, as well as third party apps, have no problems connecting to the internet (no F/C)

Download in post #3.
 

partridge79

Senior Member
May 25, 2015
827
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Gardner
lol literally just msm'd my device cause of that issue (thought it was my end) and went for a clean slate, yet when adb sideloading romzip it keeps failing with a 94% * cant read command \ followed by my filepath? anyone know what i'm doing wrong?
 
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optimumpro

Senior Member
Jan 18, 2013
7,414
14,768
OnePlus 8
lol literally just msm'd my device cause of that issue (thought it was my end) and went for a clean slate, yet when adb sideloading romzip it keeps failing with a 94% * cant read command \ followed by my filepath? anyone know what i'm doing wrong?
That's normal with Google/Lineage type recoveries. You are fine, just boot in system... .

Edit: After reaching 94%, it usually takes about 40 seconds to finish: you will know when done once your terminal session returns to the usual prompt, and on the phone, it will show step 2.
 
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whc2001

Member
Sep 20, 2015
26
6
Does the ROM support Magisk 25+? I flashed the latest version and installed Magisk 24.3, but it says Magisk not installed rather than already activated like the post said. I extracted boot.img, patched and flashed back, it says Magisk and Zygisk enabled, but LSPosed Zygisk module is not working. Installing Magisk 25.0 or above will cause the Magisk app to just hang at splash screen. Not sure what I did wrong...
 
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scorpio76r

Senior Member
Jan 10, 2016
1,415
515
All over like street lights
Does the ROM support Magisk 25+? I flashed the latest version and installed Magisk 24.3, but it says Magisk not installed rather than already activated like the post said. I extracted boot.img, patched and flashed back, it says Magisk and Zygisk enabled, but LSPosed Zygisk module is not working. Installing Magisk 25.0 or above will cause the Magisk app to just hang at splash screen. Not sure what I did wrong...
Flashing magisk 24.3 via twrp worked for me. Just saying
 

optimumpro

Senior Member
Jan 18, 2013
7,414
14,768
OnePlus 8
Does the ROM support Magisk 25+? I flashed the latest version and installed Magisk 24.3, but it says Magisk not installed rather than already activated like the post said. I extracted boot.img, patched and flashed back, it says Magisk and Zygisk enabled, but LSPosed Zygisk module is not working. Installing Magisk 25.0 or above will cause the Magisk app to just hang at splash screen. Not sure what I did wrong...
It is possible that my own version with prebuilt magisk 23 got posted. So, try to use 23 uninstaller first and then use Magisk 25.
 

whc2001

Member
Sep 20, 2015
26
6
Nevermind, according to discussion in the Telegram chat it's likely the compatibility problem of Magisk.
 

optimumpro

Senior Member
Jan 18, 2013
7,414
14,768
OnePlus 8
are you planning to move to oos12 anytime soon sir?
Name one Android 12 rom that doesn't have at least one problem listed below:

Reboots, black screen, UI freezing, lack of Volte (in many countries there is no longer 3G coverage), low call/mike/speaker volumes, overheating, faulty scrolling, lack of features (compared to 11), buggy proximity sensor, buggy automatic brightness.

Android 12 is a fluke with a slightly updated UI.
 

judaxxx

Senior Member
May 8, 2012
224
84
Samsung Galaxy Note 10+
Name one Android 12 rom that doesn't have at least one problem listed below:

Reboots, black screen, UI freezing, lack of Volte (in many countries there is no longer 3G coverage), low call/mike/speaker volumes, overheating, faulty scrolling, lack of features (compared to 11), buggy proximity sensor, buggy automatic brightness.

Android 12 is a fluke with a slightly updated UI.
crDroid 8.5, almost perfect.
I sincerely believe that Jaguar would be the same or better
 

optimumpro

Senior Member
Jan 18, 2013
7,414
14,768
OnePlus 8
crDroid 8.5, almost perfect.
I sincerely believe that Jaguar would be the same or better
I don't recommend updating to it yet as it has bugs like no bluetooth audio, missing fingerprint tweaks (custom icon + animation) and high brightness mode QS toggle is missing. There'll be a new build out soon that'll fix these issues and maybe have the June security patch and release as 8.6. But idk atm
Hi, I made the mistake of updating and now encounter many of mentioned bugs. Can I downgrade by just sideloading a previous zip file (without wiping) or should I wait for the next update and live with the bugs.

link for the above quotes
 

A30N

Senior Member
Mar 26, 2011
129
44
Los Angeles
I came from OOS 12 directly, should I have flashed OOS 11 to both slots first before flashing this ROM? I didn't see any mention in the instructions here but it seems to be required for other ROMs.

Everything seems to be working except for a minor SystemUI crash when I disconnect from Android Auto.

Also have the Magisk hanging on logo issue with v25 but AdAway and Root Explorer work with the v24.3 manager.

Let me know if I have the steps in order:
1. Flash OOS 11 stock to both slots
2.Flash TWRP or Jaguar Recovery to both slots
3.Sideload Jaguar to both slots
4. Patch boot.img and sideload Magisk

This ROM completely fixed the daily overheating issues and battery drain I was having on OOS 12, and I love the customization options, so a big thank you to OptimumPro!!!
 

scorpio76r

Senior Member
Jan 10, 2016
1,415
515
All over like street lights
I came from OOS 12 directly, should I have flashed OOS 11 to both slots first before flashing this ROM? I didn't see any mention in the instructions here but it seems to be required for other ROMs.

Everything seems to be working except for a minor SystemUI crash when I disconnect from Android Auto.

Also have the Magisk hanging on logo issue with v25 but AdAway and Root Explorer work with the v24.3 manager.

Let me know if I have the steps in order:
1. Flash OOS 11 stock to both slots
2.Flash TWRP or Jaguar Recovery to both slots
3.Sideload Jaguar to both slots
4. Patch boot.img and sideload Magisk

This ROM completely fixed the daily overheating issues and battery drain I was having on OOS 12, and I love the customization options, so a big thank you to OptimumPro!!!
If you are using twrp recovery, the steps have already been mentioned in this thread. Just go back some pages here and, yes oxygen 11 has to be flashed to both slots.
 

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  • 3
    Does the ROM support Magisk 25+? I flashed the latest version and installed Magisk 24.3, but it says Magisk not installed rather than already activated like the post said. I extracted boot.img, patched and flashed back, it says Magisk and Zygisk enabled, but LSPosed Zygisk module is not working. Installing Magisk 25.0 or above will cause the Magisk app to just hang at splash screen. Not sure what I did wrong...
    Flashing magisk 24.3 via twrp worked for me. Just saying
    2
    are you planning to move to oos12 anytime soon sir?
    Name one Android 12 rom that doesn't have at least one problem listed below:

    Reboots, black screen, UI freezing, lack of Volte (in many countries there is no longer 3G coverage), low call/mike/speaker volumes, overheating, faulty scrolling, lack of features (compared to 11), buggy proximity sensor, buggy automatic brightness.

    Android 12 is a fluke with a slightly updated UI.
    1
    Does the ROM support Magisk 25+? I flashed the latest version and installed Magisk 24.3, but it says Magisk not installed rather than already activated like the post said. I extracted boot.img, patched and flashed back, it says Magisk and Zygisk enabled, but LSPosed Zygisk module is not working. Installing Magisk 25.0 or above will cause the Magisk app to just hang at splash screen. Not sure what I did wrong...
    1
    crDroid 8.5, almost perfect.
    I sincerely believe that Jaguar would be the same or better
    Almost doesn't cut it for me especially when I rely on native call record.
    1
    This morning I redid my phone from scratch the proper way and all is working so far. I flashed the factory OOS11, then flashed Jaguar to both slots. I have Slot A with Jaguar's recovery and Slot B has TWRP recovery. Both slots have a Patched Magisk 24.3 boot.img. I can switch between them easily by using the fastboot --set-active=x command. Systemless hosts enabled with AdAway, Zygisk enabled and deny list configured. Passes SafetyNet for banking and game apps. Really snappy and fast in any task compared to OOS11 or OO12!

    Thanks again for the ROM and support!
  • 8
    TELEGRAM CHANNEL ADDED: HERE
    TELEGRAM CHAT GROUP: HERE

    VERSION 19 FIXES SAFETYNET PASSING (WITH MAGISK 24.3)
    See detailed instructions here


    You can actually use alarm when the phone is OFF. It would boot 2 minutes before 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 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

    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 to 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, just install Magisk manager (apk) as a normal app.

    PICO Gapps has been tested successfully with this rom.


    All downloads are in post #3.

    All subsequent releases will be in post #3

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

    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: 2021-09-29
    Updated: 2022-06-07

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

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


    Get your DRM L1 certificate back. Most banking apps (if not all) will work with or without Magisk: you cimply get a warning 'your devices is rooted', but you can proceed to login

    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.


    Also, see some screenshots attached:
    5
    November 3, 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.

    P.S. To those who complained they couldn't find 'double tap to wake' toggle:

    Earlier, I posted a screenshot of my Oneplus 8 (not 8 Pro or T) that clearly showed the feature. Moreover, just to make sure, I did a clean flash of the latest release, and the feature appears in Settings/Display between 'Lockscreen' and 'Wake on plug'.

    So, if you still have a 'no show', that's not the rom, but addon(s) you've installed. Or, you used TWRP to restore data (TWRP is utterly incapable of restoring data without corruption) or a version of Gapps or Xposed or Magisk addons: you should know better which one... .
    5
    October 20. New release

    1. Built from scratch in a separate environment from other devices to get rid of conflicts.

    2. Clean-flashed on my own Oneplus 8: everything seems to be working

    Download in post #3.
    4
    March 23. New release.

    1. From now on there will be 2 versions of the rom Full and Vanilla
    2. Updated kernel, which includes Spectre 2 implementations
    3. Updated icons for Display calibration

    Download in post #3.