[ROM][UNOFFICIAL][11][tb8504f/x] LineageOS 18.1 for Lenovo TAB4 8

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noxdull953

Member
Aug 17, 2020
36
1
I do not live in Delhi...
Also, just flash the stock rom using qfil only, that's more then enough, messing with device partitions is dangerous and there's also a slim chance that you might hard brick it...
But, I think that your school might have made some extremely low level changes to it, or might have paid Lenovo extra to remove direct boot to recovery mode...

For now, the temporary ways to enter recovery mode without adb are,
To reboot to recovery from magisk or from the power menu itsef...
Yes lenovo may have made some changes because when device was given to us, it was locked to run any app other than some Educational Apps provided with device.
 

ZONTAC

Member
i will advise like @Hausemaster, if it is not neccessary don't do it, and you will also lost device imei number and sim will not work.
I will do this after few months and i have backup of imei,mac, etc as i already faced blank imei corrupt mac address and i know how to repair My imei,mac etc through qualcomm tool(qfil and rebuilder) as i already did many many experiments on this tab(except wiping partition) .
Btw thanks.
 

VN Tinkerman

New member
Dec 18, 2021
1
0
I will do this after few months and i have backup of imei,mac, etc as i already faced blank imei corrupt mac address and i know how to repair My imei,mac etc through qualcomm tool(qfil and rebuilder) as i already did many many experiments on this tab(except wiping partition) .
Btw thanks.
Hello, I'm a newbie here, and I aslo suffer from the same symptom like you as a result of installing a custom rom on my TB-8504x(crDroid 6.24). However, I managed to QFIL this guy with its stock rom of Nougat(android 7) and can finally fix this problem. Anyway, I hope this can work on your device.
 

Herroos

New member
Jan 3, 2022
3
0
Thanks for supporting this device!

I'm considering moving to this from your crDroid ROM but wondering what this means:
  • GPU rendering lag
How does it affect everyday use?
 

Hausemaster

Senior Member
Dec 2, 2020
411
100
(Unrelated to above) For some reason the device would occasionally black screen and requires a force reset, especially during extreme loads.
Im not sure why, it happens to me too, I wish I had my pc on hand, i could get logs, and the gallery go app causes this issue which is funny...
Edit: It happens for me mainly when I keep a photo open for a few minutes in the google gallery go app...
 

Hausemaster

Senior Member
Dec 2, 2020
411
100
So would you still recommend this ROM instead of a more stable Android 10 ROM? As I said, running crDroid and it works great.
I wouldn't if you need snappy systemui feel...
EdIT: WheN you scroll down for quick settings it lags, android P and Q navigation lags...
But everything else is fine other than these...
 
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Lê Hữu Huy

Senior Member
Sep 4, 2014
77
26
HCMC
zYkSW7S.png



Code:
/*
I'm not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed.

Please do some research if you have any concerns about features included in the products you find here before flashing it!

YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you.

Your warranty will be void if you tamper with any part of your device / software.
*/


LineageOS is a free, community built, aftermarket firmware distribution of Android 11 (R), which is designed to increase performance and reliability over stock Android for your device.


LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.


All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review.



What's working :

  • Boot
  • RIL (Calls, SMS, Data)
  • Wi-Fi
  • Bluetooth
  • Camera
  • Camcorder
  • Video Playback
  • Audio
  • Sensors
  • LED
  • GPS/GNSS


Known issues:
  • GPU rendering lag
  • No VoLTE


Instructions :
  • Download the ROM and Magisk (Optional)
  • Wipe System, Data, Dalvik, Cache.
  • Flash the ROM, Magisk (Optional).
  • Reboot and Enjoy.


Download :
Device sources: https://github.com/TB8504
Are you still developing this project? Can Tab4 8 update to Android 12? How can I donate to you to keep this project going? Thank you, hope to hear from you soon.
 
Jan 22, 2022
21
1
Yeah so, I would like to request pixel experience ROM for lenovo x304l/f/x. I own the device and can test the ROM if you want. You might be busy but if can make the rom, I would be grateful.
 

adazem009

Senior Member
Are you still developing this project? Can Tab4 8 update to Android 12? How can I donate to you to keep this project going? Thank you, hope to hear from you soon.
Yes, I'm still working on it. I'm still waiting for Android 12 CAF releases targeting to msm8937. After they''re there, it should be possible to build it using the device trees from Android 11 (with a few changes).
 

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  • 1
    Update
    Download
    • April 2022 security patch.
  • 4
    zYkSW7S.png



    Code:
    /*
    I'm not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed.
    
    Please do some research if you have any concerns about features included in the products you find here before flashing it!
    
    YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you.
    
    Your warranty will be void if you tamper with any part of your device / software.
    */


    LineageOS is a free, community built, aftermarket firmware distribution of Android 11 (R), which is designed to increase performance and reliability over stock Android for your device.


    LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.


    All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review.



    What's working :

    • Boot
    • RIL (Calls, SMS, Data)
    • Wi-Fi
    • Bluetooth
    • Camera
    • Camcorder
    • Video Playback
    • Audio
    • Sensors
    • LED
    • GPS/GNSS


    Known issues:
    • GPU rendering lag


    Instructions :
    • Download the ROM and Magisk (Optional)
    • Wipe System, Data, Dalvik, Cache.
    • Flash the ROM, Magisk (Optional).
    • Reboot and Enjoy.


    Download :
    Device sources: https://github.com/TB8504
    3
    Update
    Download
    • December 2021 security patch
    • ... Merry Christmas :)
    2
    Bro I have installed this rom, thnks for ur work but it's lagging ... is it only happening with me or with everyone !! so i decided to give a try to ur crDroid rom , again u guys are doing gr8 work !!
    It's happening to all of us (see the "Known issues" section above). Updating some vendor blobs should fix it, but I think I'll need some help with it.
    2
    Are you still developing this project? Can Tab4 8 update to Android 12? How can I donate to you to keep this project going? Thank you, hope to hear from you soon.
    Yes, I'm still working on it. I'm still waiting for Android 12 CAF releases targeting to msm8937. After they''re there, it should be possible to build it using the device trees from Android 11 (with a few changes).