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[ROM][UNOFFICIAL][9.0][TB-X704F/L] LineageOS 16.0 for Lenovo Tab4 10 Plus

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Muad.Dib

Senior Member
Dear members, Hope you are all fine. I am new to install this firmware to my lenovo tab4 10 701LV softbank Japense device but i failed to install TWRP and run it on my device. I think the problem is i dont know how to root this device.

Is root is must to do before install this twrp in my deivce?
I am able to successfully upload twrp on my device adb but my device just restart to normal. It didnot went to TWRP bootload.

Is there anyone help me to install this firmware to my device.


Thanks very much.,
Zayad Mohsin
Hey there,

No you do not need to root your device to boot/flash TWRP on it. All you need to do is to unlock bootloader. The matter then is to find the correct version of TWRP which works for your device.

To test TWRP version best is to boot them before eventually flash them. A few things might not work in boot mode from my own experience but you can already test if touchscreen is working ok or make initial devices FULL backups before you start messing up things ;)

So once bootloader unlocked reboot bootloader

fastboot boot c:\twrp-x701l.img

Please note you are on a x704_ device thread, that's not what you seem to own since you said you had 701lv. You need to get the right version for your device trying other versions devices will likely result into failing or worse brick your device.

Hope this helps.
Good luck!

Regards
 
Last edited:

zayad_mohsin

Member
Nov 4, 2010
17
0
Hey there,

No you do not need to root your device to boot/flash TWRP on it. All you need to do is to unlock bootloader. The matter then is to find the correct version of TWRP which works for your device.

To test TWRP version best is to boot them before eventually flash them. A few things might not work in boot mode from my own experience but you can already test if touchscreen is working ok or make initial devices FULL backups before you start messing up things ;)

So once bootloader unlocked reboot bootloader
fastboot boot c:\twrp-x701l.img

Please note you are on a x704_ device thread, that's not what you seem to own since you said you had 701lv. You need to get the right version for your device trying other versions devices will likely result into failing or worse brick your device.

Hope this helps.
Good luck!

Regards[/ICODE]
Thank you very much for your reply but I didn't find twrp of 701LV device. But i read a thread in this forum that someone tries this on the same device which I have. I contact him but he didn't reply yet to me.
 

zayad_mohsin

Member
Nov 4, 2010
17
0
Can you let me know how to unlock the bootloader and second how to backup me whole firmware if i dont any mistake or it would not work then i would able to go back to stock firmware. I did not have any data on that tab i only have concern about stock firmware right now.
 

zayad_mohsin

Member
Nov 4, 2010
17
0
its gets this error while i try boot trwp image
1618143894061.png
 

zayad_mohsin

Member
Nov 4, 2010
17
0
I update the fastboot driver update i didnot wheater it update or not but not work.

Then i follow the command on trwp official website it write the file but did not reboot it on trwp platform. Just restart to normal when i give the command of fastboot reboot.


1618145330641.png



Now device is unlock boot loader
1618145537487.png
 

Muad.Dib

Senior Member
I update the fastboot driver update i didnot wheater it update or not but not work.

Then i follow the command on trwp official website it write the file but did not reboot it on trwp platform. Just restart to normal when i give the command of fastboot reboot.


View attachment 5276159


Now device is unlock boot loader
View attachment 5276161

Right after flashing recovery to device and rebooting to bootloader (the screen above) just use the vol+/vol- button to select recovery, press power when on it, and that should do the trick. It does for me.

Hope this helps.

Regards.
 

Muad.Dib

Senior Member
Screenshot_20210420-224812_Settings.png


First built for the tablet done. It installed so I guess it can't be that bad ;)

I have not touched anything, just repo sync and built.

Now I am going to test a bit further, I have everything to install since I came from fresh stock and let you know if things work properly.

Would any of you interested in the update or you all moved to Q already?

Personally I want to stay on P a bit longer so I'll keep building for msyelf to apply security patches.

Cheers!
 

m0lek

Member
Oct 26, 2014
28
4
Congratulations!

I had moved to Android 10 due to lack of security updates.

Android 10 is pretty stable, but my tablet can not use a SIM card to access 3G/4G as with LOS 16.0 (Pie).

Please share your build after you test it throughly

Thanks in advance.
 

Muad.Dib

Senior Member
lineage-16.0-20210420-UNOFFICIAL-TBX704

latest build available with the April 2021 security patch.

The sources used were the one provided on page 1 based on Lenovo-devs work which includes @highwaystar_ru (who allowed me to share my LOS16 builds) so thanks to them/him. Obviously also huge thanks to LineageOS team for their continuous work and support making incredible things still possible with our aging, yet still fully functional hardware!

All I did was sync the repo and build - the latest patch was added by the LOS team.

For me everything is working fine on my F flavor of the tablet, but I see no reasons why things which were working before would not be working anymore since all what was added was lastest security patch.

If you are coming back from any other version of A or LOS I strongly recommend a fresh install.

Enjoy ;)

LOS16 Downloads for TB : X704
md5sum : 269f07113459f2cd1ab756bbabcc3245
[GDrive] : https://drive.google.com/file/d/1NlzK7BaFiSwaQY6E1Rrmw4zq5Vk82DYQ/view?usp=sharing
[MEGA] : https://mega.nz/file/yM9khQTD#wPXdYJwxQKz6ifzdDBN4FSTAHzrRwM2mczXm67SJtYY
[Yandex] : https://disk.yandex.com/d/SkL7te1MRpPY_g
 
Last edited:
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Muad.Dib

Senior Member
Congratulations!

I had moved to Android 10 due to lack of security updates.

Android 10 is pretty stable, but my tablet can not use a SIM card to access 3G/4G as with LOS 16.0 (Pie).

Please share your build after you test it throughly

Thanks in advance.

Hey @m0lek out of curiosity have you tried my updated version and does your SIM works in there? I only have the F (wifi) version of it so Idk. Please let me know.
If interested and working I might be sharing my updated builds once a month.

Cheers!
 
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Muad.Dib

Senior Member
lineage-16.0-20210516-UNOFFICIAL-TB8704
latest build available with the May 2021 security patch.

The sources used were the one provided on page 1 based on Lenovo-devs work.

All I did was sync the repo and build - the latest patch was added by the LOS team.

Enjoy,



LOS16 Downloads for TB-X704
2021, May 5th security patch
md5sum : 65cba45b564a8642ad8bdbf5a7e1b6cb
[GDrive] : https://drive.google.com/file/d/19q_RP7yITKuDG-RTPWjGGleJhpL753mn/view?usp=sharing
[ MEGA ] : https://mega.nz/file/WM0FlAaQ#0Ewox34e3t1ZRvWbZ_dQLyOErmCcXMLcFPeCju_3GeE
[Yandex] : https://disk.yandex.com/d/FzkdRK_yc1UAaw
 

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  • 44
    http%3A%2F%2Ffiles.paulfasola.fr%2FCyanogenMod%2FLineageOS.png


    Code:
    /*
     * I'm not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed (like it did for me...). 
     * 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.
     * Same statement for XDA.
     */

    LineageOS is a free, community built, aftermarket firmware distribution of Android 9 (Pie), 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 works:
    Wifi
    Bluetooth
    Audio
    LED
    USB
    RIL
    Encryption
    Fingerprint
    Camera
    Hall sensor
    DT2W
    Selinux Enforcing

    Broken
    nothing

    Source code:
    device: https://github.com/lenovo-devs/android_device_lenovo_TBX704
    device-common: https://github.com/lenovo-devs/android_device_lenovo_tb-common
    kernel: https://github.com/lenovo-devs/android_kernel_lenovo_msm8953
    vendor: https://github.com/lenovo-devs/proprietary_vendor_lenovo

    Important
    If you are using this ROM first time, wipe data. Wipe data completely. I mean the option where you need to enter "yes". Use this option and then flash the rom.
    This ROM only works with the TWRP I added.

    If you want to use GAPPS, flash it directly after flashing ROM. Don't let the ROM boot. Otherwise your device will not get certification, so you will not have Google Access.


    Instructions (thx @matshias, just changed few lines to get ROM flashing working)

    1. Put your ROM (and GApps) onto your sdcard (sdcard must be exfat or fat32, NTFS not supported)
    2. Install fastboot and adb on your PC, e.g. from here
    3. Enable developer options and in there select to unlock your bootloader by enabling OEM unlock and enable USB debugging
    4. Connect your PC to your tablet and run
      Code:
      adb reboot bootloader
      using adb on command line. The tablet will reboot into bootloader mode where you will only see the Lenovo logo. Now you use
      Code:
      fastboot oem unlock-go
      to unlock. This will factory reset your device
    5. Don't setup, cause you will need to format your tablet later again. Shutdown tablet. Hold volume up and power button to start to bootloader
    6. Then run
      Code:
      fastboot flash recovery twrp-3.2.3-0-<your-filename>.img
      to flash TWRP
    7. Select with volume buttons "Recovery Mode" and press power button
    8. Select to write to system, otherwise you can't flash ROM
    9. Backup at least system and boot partitions to your sdcard cause you will wipe data in next step. Choose "System Image" for the system partition backup.
    10. Format data using this tutorial
    11. Flash ROM
    12. Optionally flash SuperSU or Magisk in TWRP which should install system less. Keep OEM unlock enabled if you flash or modify anything
    13. Restart


    Download
    2019-08-12 (hotfix)
    • hotfix: fix camera
    • security patch level: 2019-08-01
    ROM
    TWRP (Use this for TB704L too; you guys don't need 4g in recovery :p)

    You can also get the latest ROM updates from codeworkx here:
    https://sourceforge.net/projects/lineageos-on-lenovo/files/16.0/TBX704/
    Bulids are same, just update.

    Older downloads

    2019-07-14
    • security patch level: 2019-07-05
    ROM
    TWRP

    2019-06-22 (thx @codeworkx)
    • bugfixes and performance improvements
    • fix camera detection for ov8856 sensor
    ROM

    2019-06-09 (thx @codeworkx)
    • bugfixes and performance improvements
    • set_permissive.zip patch no more required
    • TWRP 3.3.0 support
    • security patch level: 2019-06-05
    ROM

    2019-05-14
    • fixed sim issue for x704l caused in last update
    • fixed a little issue on x704l (should improve battery life)
    • added double tap to wake
    • latest changes of LineageOS
    ROM

    2019-05-10
    • fixed wifi after fresh installation
    • changed scheduler to bfq
    • added wireless display broadcast
    • improved performance
    • removed ril elements from X704F variant
    • security patch level: 2019-05-05
    ROM
    SIM fix for X704L

    2019-04-30
    • fixed fingerprint bug caused by SELinux
    • removed PS3/PS4 controller hid, as it doesn't work
    • optimized performance
    ROM

    2019-04-28
    • fixed notifcation led (light was only red for notifications)
    • fixed ril values
    • added support for PS3/PS4 controller
    • SELinux is enforced after boot
    ROM

    2019-04-24
    • fixed hall sensor
    • fixed camera
    • fixed long time to wake up screen
    ROM

    2019-04-22
    • fixed fingerprint removement after reboot/user switch
    • fixed partially camera (same like in 15.1)
    • fixed reboot to recovery and bootloader for advanced reboot menu
    • fixed long time to wake up screen
    • fixed deep sleep
    ROM

    2019-04-21
    • intital release
    • TB-X704L is now integrated, no more additional zip required
    • You can update from previous version
    ROM


    Optional downloads
    Dolby Digital Plus (use the TWRP one)
    GAPPS (use 9.0 arm64; I suggest using pico variant)

    Mounting system rw
    This is impossible on our tablet. The bootloader enforces verity check, which causes this issue.
    The only possibility is to modify bootloader, what is dangerous and requires good knowledge.
    there is a workaround using magisk with a mod. which mounts your system rw on mount:
    https://forum.xda-developers.com/showpost.php?p=79681018&postcount=259

    Thanks
    @highwaystar_ru (he gave me the important hint, also used his sources and his thread :eek:)
    @LumenReaper (for his work with CM14.1, where I took big part of his device tree :fingers-crossed:)
    @Flowah123 for the TB-X704L files :fingers-crossed:

    Donations
    Thanks to @rorzer, @Preyer11, @Tschumi, @MrMagic, @max_work, @vicenza & 5 x anonymous :D

    Please don't support Lenovo and buy their tablets
    Code:
    [I]Updates vary depending on the model where our tablets receive Android and security updates after the introduction. 
    We announced Tab 4 10 Plus in February 2017 and since then it has received seven OTA updates. 
    However, this model has reached the end of its update cycle and will not receive any more updates in the future.
    - Lenovo (2018-05-11)[/I]
    Just seven updates and not even one major upgrade, please don't support them.

    Reporting bugs
    Please tell what mods you are using and what tablet variant (TB-X704F or L or ABCDEFGH..)
    If your tablet doesnt start:
    go to TWRP. use file manager, go to sys/fs/pstore, copy the files and upload it here.
    if your tablet starts and bug appears later:
    go to TWRP. use file manager, go to sys/fs/pstore, copy the files
    start your tablet normal, let the bug appear, enter adb root
    use adb logcat and adb shell dmesg, copy the content to a text file and upload here

    XDA:DevDB Information
    [ROM][UNOFFICIAL][9.0][TB-X704F/L] LineageOS 16.0 for Lenovo Tab4 10 Plus, ROM for the Lenovo Thinkpad Tablet

    Contributors
    yener90, codeworkx
    ROM OS Version: 9.x Pie

    Version Information
    Status: Testing

    Created 2019-04-21
    Last Updated 2019-06-11
    12
    Update
    2019-07-14
    • security patch level: 2019-07-05
    ROM
    11
    Update
    2019-04-28
    • fixed notifcation led (light was only red for notifications)
    • fixed ril values
    • added support for PS3/PS4 controller
    • SELinux is enforced after boot
    ROM
    11
    @yener90

    Interested on making this official?

    Sent from my OnePlus 6 using XDA Labs

    Sure, why not?
    This would be really nice.
    10
    Time to make some music here :p

    Update
    2019-05-10
    • fixed wifi after fresh installation
    • changed scheduler to bfq
    • added wireless display broadcast
    • improved performance
    • removed ril elements from X704F variant
    • security patch level: 2019-05-05
    ROM
    SIM fix for X704L