[ROM][DEVELOPMENT][9.0] LineageOS 16.0 [POLLUX/POLLUX_WINDY][UNOFFICIAL]

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Rootk1t

Senior Member
Jun 2, 2013
1,656
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The overall performance of this device isn't what you expect from a modern device, due to outdated hardware (4 kernels @ 1.5 GHz max, only 2GB RAM etc). But it is still much better than stock as far as I remember (I switched ~5 years ago). I'm running it with Kernel Adiutor to boost CPU which makes it OK to work with. Only thing that's a bit annoying for me is that it takes up to a minute to be truly responsive when woken up from a longer sleep period. Well, we all get old, don't we?
What I still like about it is it's battery. I don't watch TV or videos on it so I'm still having up to 5 days going from 80% down to 15%. Really not bad for a 9 year old device!
I share you opinion about our device.
Though things that distract me: long app installation due to very slow internal storage and insufficient RAM which leads to killing apps, as only browser with several tabs can consume all available RAM.
Though for slow paced usage (reading of books, casual games, watching movies, some photo editing, light surfing) it's quite ok. Battery life is also good, though it depends on how many cycles battery had during it's lifespan, so mileage can vary.

BTW, can your share your Kernel Adiutor settings (like what governers are you using for CPU&GPU and maybe some storage tweaks if you have them)?
 
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lm089

Senior Member
Jun 26, 2011
652
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Munich
BTW, can your share your Kernel Adiutor settings (like what governers are you using for CPU&GPU and maybe some storage tweaks if you have them)?
Sure, but I'm afraid that my knowledge re: these things is very basic.
All in all I was looking for longer charging cycles combined with better responsiveness.
Main thing I did was pushing cpu frequency limits on both ends: up to 1782 and down to 192MHz. The upper limit indeed has some effect. I chose the lower end hoping to have some extra battery savings in near-idle situations, but I don't know if that really is doing any good. I leave it there anyways.
For CPU governor I chose "ondemandplus" after experimenting a bit. I feel that it suits my purpose.
GPU-wise I also pushed max speed up to 487MHz.
In regards to storage I didn't do much. Just chose the "aggressive" profile for the low memory killer. But I did that only recently so there's no experience yet.
That's it basically, at least in the kernel area.
On my hunt for longest possible charging cycles I also experimted with WiFi settings, like using an app to switch off Wifi shortly after screen goes off. That sort-of worked, but I found that the device had big problems getting into gear after longer standby periods. So I gave up on this, and since then my tablet is really quite responsive.
 
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Tomek0000

Senior Member
Jun 14, 2015
484
133

Tomek0000

MagiskHide_Props_Config and riru are not needed to pass safety net.
I happen to pass it only with enabling Zygisk and configuring DenyList on Magisk v24.1 or with MagiskHide in prior versions.
Ritu was for older magisk and safety net universal. I know , magisk hide is not need everytime but I use common procedure for all my devices and do not have to use all installed apps.
 

Tomek0000

Senior Member
Jun 14, 2015
484
133
Only thing that's a bit annoying for me is that it takes up to a minute to be truly responsive when woken up from a longer sleep period. Well, we all get old, don't we?
What I still like about it is it's battery. I don't watch TV or videos on it so I'm still having up to 5 days going from 80% down to 15%. Really not bad for a 9 year old device!
I do not see any time needed by tablet when I start it from standby to be full responsible. It seems to be full ready at once.
Fresh Los needs only 0.1% battery/hour in deep sleep. When I added my apps it increases to 0.16 and it is very good.
This 5 days is a time of working with LCD turned off? My observation is a using much battery with LCD on and it is not comparable with other devices. But battery is enough for charging only once a day.
 

lm089

Senior Member
Jun 26, 2011
652
207
Munich
I do not see any time needed by tablet when I start it from standby to be full responsible. It seems to be full ready at once.
You're right, it's the same here now after I found which setting/app was causing this
This 5 days is a time of working with LCD turned off?
:D I'm aware that this statement is very provocative. Of course, screen on consumes a lot of energy.
What I wanted to say is that even after 9 years the battery is still very healthy and can still handle 5 days and more in pure standby mode. In "real life" I have to charge it more often, of course
 

lm089

Senior Member
Jun 26, 2011
652
207
Munich
What app was causing such behaviour?
WiFi automatic by j4velin. Not a bad app if I want to make sure that wifi is disabled while the device is in standby, still am using it on another device. But the tablet apparently has problems recovering from long standby periods if the app is active. Since I removed the app 5ablet is much more responsive after long standby. Drawback is a significant higher batter drain in standby. Still ok, but...
 

Tomek0000

Senior Member
Jun 14, 2015
484
133
Drawback is a significant higher batter drain in standby. Still ok, but...
Is the turn on/off wifi the only problem ? You can find other apps or use any automation. I have many scripts in Automagic and the script not only turn off wifi but set battery saver after screen lock ...
 

lm089

Senior Member
Jun 26, 2011
652
207
Munich
Is the turn on/off wifi the only problem
That's what I tested over the weekend by simply switching WiFi Off manually for 24 hrs. Apparently that doesn't have the impact that this app is having. You're right, I'll be hunting for alternatives. Automagic is a good idea, I even have a licence for it but quit using it for whatever reason... would you care to share your script(s)?
 
Aug 3, 2011
7
1
Thank you to all involved in releasing the September 9, 2021, version of the ROM. I have owned this tablet since 2013. It feels like a new (and faster) version of the original tablet. Thank you again for all that you do to prolong the lives of perfectly good hardware that would otherwise be rendered useless.
 
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lm089

Senior Member
Jun 26, 2011
652
207
Munich
Could someone please reupload the most recent build (Jan 31, 2022)? On several attempts at downloading it I get redirected to ads or, worse, porn. Thanks!
Just tried the pollux_windy link from this post, appears to be working fine, though I didn't really download it now. I no longer have the zip file on my PC, I should have it somewhere on one of my external archive drives. If you can't get it elsewhere PM me then I can go looking for it
 

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  • 1
    Thank you to all involved in releasing the September 9, 2021, version of the ROM. I have owned this tablet since 2013. It feels like a new (and faster) version of the original tablet. Thank you again for all that you do to prolong the lives of perfectly good hardware that would otherwise be rendered useless.
  • 36
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    This is an Unofficial builds for Xperia Tablet Z LTE/Wi-Fi.
    About ROM
    LineageOS is a free, community built, aftermarket firmware distribution of Android 9.x (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.

    The source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit our Gerrit Code Review. You can also view the Changelog for a full list of changes & features.

    Installation
    • Download the latest build
    • Place ROM in your SD card or Internal Storage
    • Reboot into recovery mode
    • Full wipe and factory reset (recommended)
    • Flash ROM
    • Reboot
    Downloads
    Pollux: AFH
    Pollux_windy: AFH
    LineageOS addonsu for root access
    • (Information) Read the Root section of the Q&A thread
    • (Download) Download the addonsu for arm : LineageOS Downloads / Extras
    • (Optional) Flash the zip on a working Lineage installation (once)
    • (Information) Upon ROM updates, the addonsu is preserved
    • Reboot
    Recommended Recovery (optional)
    Gapps (optional)
    OpenGapps (ARM/Android-9.x): http://opengapps.org
    Sources
    Kernel: apq8064

    XDA:DevDB Information
    LineageOS 16.0 for the Sony Xperia Tablet Z, ROM for the Sony Xperia Tablet Z

    Contributors
    CaHbKaUp, CyberWalkMaN, AdrianDC, Chippa_a
    ROM OS Version: 9.x Pie

    Version Information
    Status:
    Testing
    Beta Release Date: 2021-09-16

    Created 2019-04-26
    Last Updated 2021-09-17
    13
    FEATURES AND ISSUES
    Code:
    - Boot : Ok
    - GApps : OpenGApps Nano Ok
    - FOTA Recovery : Ok (see below)
    - WiFi : Ok (real SONY MAC address)
    - Bluetooth : Ok (real SONY MAC address)
    - WiFi Hotspot : Ok (2.4GHz only)
    - RIL - Phone - Data : Ok
    - GPS : Ok
    - Camera : Ok
    - Camcorder : Ok
    - MicroSD : Ok
    - Accelerometer : Ok
    - Compass : Ok
    - Gyroscope : Ok
    - AOSP sensors : Ok
    - FM Radio : Work In Progress
    - Microphone : Ok
    - Audio & external audio : Ok
    - Bluetooth audio : Ok
    - NFC : Ok
    - Kernel : Ok, Updating frequently
    - Graphics : Ok
    - 3D Rendering : Ok
    - Clock : Ok
    - Offline Charging : Ok
    - SEPolicies : Work In Progress
    13
    New update build 2021/08/10
    Changes:
    • August 2021 Android security patch
    12
    New update build 2021/06/08
    Changes:
    • June 2021 Android security patch
    12
    New update build 2020/04/15
    Changes:
    • April 2020 Android security patch