[ROM][10]LineageOS Z4Tablet[SGP712/771] - Xperia Z4 Tablet Android Development

There is Android Q ROM for Xperia Tablet Z4.
This is a quite stable rom, but there are:
- a broken camera (there is a small chance that someday it'll be fixed);
- when the tablet is off, during charging, the diode will always light red;
- FM radio;
- Hardware encryption (external SD Card as internal storage)
- LiveDisplay;
Many games like clash of clans crash after some time of using;
It works quite laggy.
How to install:
1) use TWRP 3.1.1 or 3.4.0 (this is better). If you using 3.1.1 one, remove the first two lines from updater-script (\ META-INF \ com \ google \ android);
Code:
assert(getprop("ro.product.device") == "SGP771" || getprop("ro.build.product") == "SGP771" ||
getprop("ro.product.device") == "karin" || getprop("ro.build.product") == "karin" || abort("E3004: This package is for device: SGP771,karin; this device is " + getprop("ro.product.device") + "."););
Note, I often upload ROM with having two lines removed.
2) wipe system, data, cashe, dalvik;
3) Flash the firmware, gapps, magisk and that’s it.
Change log:
20200620 - livedisplay now fully works.
20200730 - fixing memory leaks in the kernel.
20200812 - fixing led and light sensor.
20201023 - camera fix.
Last builds (mirror) are here.
Sabar_op link
Kernel sources.
We must be infinite grateful to sabar_op for his hard work in development of this rom and Bernie and Tarkzim who help to update kernel for kitakami devices. :good:.
Battery consumption significantly reduced! For further reduction, please follow these instructions https://forum.xda-developers.com/showpost.php?p=83211949&postcount=197 .

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First of all: Thank you for keeping our device with up to date rom. Very much appreciated. I am still on LOS 7.1. and would like to move on to a more recent rom with current security patches.
The first two lines in updater-script of lineage-17.1-20200620-UNOFFICIAL-karin/ read
Code:
ui_print("Target: Sony/karin/karin:10/QQ3A.200605.001/eng.sabar.20200621.001556:userdebug/test-keys");
package_extract_dir("install", "/tmp/install");
and not what is written in the post. What is the problem? I want to use TWRP 3.1.1. for flashing. Am I missing something?

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Hybel1507 said:
First of all: Thank you for keeping our device with up to date rom. Very much appreciated. I am still on LOS 7.1. and would like to move on to a more recent rom with current security patches.
The first two lines in updater-script of lineage-17.1-20200620-UNOFFICIAL-karin/ read
Code:
ui_print("Target: Sony/karin/karin:10/QQ3A.200605.001/eng.sabar.20200621.001556:userdebug/test-keys");
package_extract_dir("install", "/tmp/install");
and not what is written in the post. What is the problem? I want to use TWRP 3.1.1. for flashing. Am I missing something?
Click to expand...
Click to collapse
Before the uploading roms, I ckeck it on my own to see whether it works and as far as remember I've done this step.
All you need to do is to wipe necessary and flash the rom with twrp 3.1.1. If you will have zero byte internal storage, you have to format it by twrp.

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May I ask where the source code for this build is located at ? (both kernel and rom)

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kevinhecox99 said:
May I ask where the source code for this build is located at ? (both kernel and rom)
Click to expand...
Click to collapse
It's not still published.
Last ROMs work better.

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alex009988 said:
It's not still published.
Last ROMs work better.
Click to expand...
Click to collapse
Which version works best (which date)?
Also why not put the files on androidfilehost, this site looks unusual and with no source code available people should be careful what they are installing.

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belrik said:
Which version works best (which date)?
Also why not put the files on androidfilehost, this site looks unusual and with no source code available people should be careful what they are installing.
Click to expand...
Click to collapse
The sources of common tree and kernel are in https://github.com/Sony-MSM8994-Dev
I am just doing a bit modification to match our device, while the device tree can be found in my github.

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Hi all, what about the camera with this ROM?

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belrik said:
Which version works best (which date)?
Also why not put the files on androidfilehost, this site looks unusual and with no source code available people should be careful what they are installing.
Click to expand...
Click to collapse
The last ones are most stable from 30072020. The 12082020 with fixing led and light sensor.
I use my own cloud storage as this would be saved for many years and it's fast enough to download.

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1GTRBG said:
Hi all, what about the camera with this ROM?
Click to expand...
Click to collapse
No hope for z4 tab camera as long as these guys find the solution for z5 https://forum.xda-developers.com/z5-compact/development/rom-lineageos-17-1-z5c-suzuran-t4052973

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Thanks for the rom.
Is the latest build (12082020) compatible with SGP712 (karin_windy), or I should use 30072020-karin_windy for my SGP712?

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joyirwin said:
Thanks for the rom.
Is the latest build (12082020) compatible with SGP712 (karin_windy), or I should use 30072020-karin_windy for my SGP712?
Click to expand...
Click to collapse
You must use the second one 30072020.

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How are The battery performance compaired to stock?

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torben5247 said:
How are The battery performance compaired to stock?
Click to expand...
Click to collapse
I have not used stock for years. But i can say performance is quite well and it's better then for los 15. Dont afraid just try it.

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@alex009988
I installed 120820 on My lte tablet.
This version is Working very well!
Thanks to the hardworking devs??

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Can someone post a specific way to install this ROM? I would like to try it as 7.x is killing my battery and I do not use the camera anyway.
Thank You

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Metoposcopy said:
Can someone post a specific way to install this ROM? I would like to try it as 7.x is killing my battery and I do not use the camera anyway.
Thank You
Click to expand...
Click to collapse
Install twrp 3.4.0, wipe system data cashe dalvik, install ROM magisk and gapps.

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alex009988 said:
Install twrp 3.4.0, wipe system data cashe dalvik, install ROM magisk and gapps.
Click to expand...
Click to collapse
twrp site doesnt list any versions for Z4 tablet. Are there any links or threads taht can provide a compiled / genuine twrp link. Appreciate it.
i tried from some threads version 3 of TWRP and it didnt work on my 771

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rb69 said:
twrp site doesnt list any versions for Z4 tablet. Are there any links or threads taht can provide a compiled / genuine twrp link. Appreciate it.
i tried from some threads version 3 of TWRP and it didnt work on my 771
Click to expand...
Click to collapse
Download 3.4.0 from first page of this thread.

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alex009988 said:
Download 3.4.0 from first page of this thread.
Click to expand...
Click to collapse
I tried using 3.4.0 for karin_windy but the recovery wouldn't boot. Reverted back to 3.3.1 and used it to flash.