yashsingh1/xdaforums huggingface dataset:
[Xperia Tablet Z Original Android Development] Rootk1t:
Try mipa kernel.
[Xperia Tablet Z Original Android Development] Tonnyy24:
As a matter of fact, I did tried that kernel, lots of it's versions, in the past 2 hrs. Sadly, any kernel update newer than "pollux_windy-2018-09-02"( the first available one@ https://androidfilehost.com/?fid=1322778262904000420 ), is broken as in, I'm getting drawing artifacts (lags/stutter/frame drops) when scrolling, even in games ( just like here: https://xdaforums.com/t/kernel-8-1-...pollux_windy-2020-10-07.3839726/post-83373841 ) and all of them also have the same issues with Youtube 1080p60fps and gpu overclocking in Kernel Adiutor. I don't really want to switch back to Los 14.1, despite being better overall in terms of performance, guess I'll stick with this one until maybe the Los 16.1 rom will be more stable.
[Xperia Tablet Z Original Android Development] Rootk1t:
More and more videos on youtube are using new av1 codec instead of the vp9, especially high resolution and 60fps ones.

Tablet Z SOC doesn't have support of hardware acceleration of decoding of such videos, so stutter will be unavoidable.

Also performance of gpu on stock rom is comparable with custom ROMs with overclock because, proprietary gpu drivers Sony uses in it's stock firmware are more efficient, than open source ones used in custom ROMs.

So for games or graphics stock ROM is preferable.
[Xperia Tablet Z Original Android Development] Tonnyy24:
I see. Thank for your reply. I remember scoring around 6200points in 3dmark icestorm extreme with the stock android and between 6700-7600points with the custom roms depending on cpu/gpu overclocking. Was thinking that game performance should also be better than with the stock rom because of that, can't exactly relate though since I don't often play lately on this tablet. But I was hoping for smooth 1080p60fps playback on youtube with this rom, that's the main reason I decided to switch from Los 14.1 to 15.1. Funny thing is that 1080p50fps videos work without any issues, both on 14.1 and 15.1 roms...
[Xperia Tablet Z Original Android Development] ushilives:
There is also Lineage OS MicroG 15.1 that has been updated recently too:-

pollux_windy
[Xperia Tablet Z Original Android Development] Rootk1t:
It dropped UNOFFICIAL prefix. So microg los 15.1 builds can be considered official now.
[Xperia Tablet Z Original Android Development] User111111:
Deleted
[Xperia Tablet Z Original Android Development] User111111:
And what about RAM management and CPU tasks (for example, opening apps etc.)?
[Xperia Tablet Z Original Android Development] Rootk1t:
As this device was made in 2013, it's ram and internal storage are quite slow by todays standards.

It's ok for slow pace usage like watching movies, reading books, some casual games or light internet surfing, but cpu and storage intensive tasks like 3d games or opening of large apps are not performing good.
[Xperia Tablet Z Original Android Development] brodo:
Any chance to still find this build somewhere? Espacially "lineage-15.1-20220416-microG-pollux_windy.zip"
[Xperia Tablet Z Original Android Development] ze7zez:
I think so.

there will be a link here soon when I find the file.

edit.

I only have this lineage-15.1-20220416-microG-pollux.zip file.
[Xperia Tablet Z Original Android Development] ushilives:
Can't find it either. However I have found this one from 2021:- https://cloud.mail.ru/public/Mgds/VDL86Cs8L
[Xperia Tablet Z Original Android Development] brodo:
Ok, that's the newest one I could find, but still not with MicroG..
[Xperia Tablet Z Original Android Development] brodo:
Thank you anyway! I will try it, maybe it does work somehow on the non-LTE version.
[Xperia Tablet Z Original Android Development] x52-curcuma:
Is there any specific reason to using LOS-15.1? If you can accept LOS-16, CaHbKaUp's LOS-16,

lineage-16.0-20220131-UNOFFICIAL-pollux_windy, works great and is the last fully functional one. And with MinMicroG-v2.12.0 installed to system works fine. MinMicroG addons to be installed as Moagisk module to complete the setup.
[Xperia Tablet Z Original Android Development] brodo:
There is no special reason to prefer 15.1 over 16. Except maybe that lower android versions tend to be more kind on the old hardware, performance wise. As long as 15.1 does everything I need it to do, I'm completely fine with it. Since I'm not using this device for anything critical anymore I don't care too much for security patches.

I am looking for a build where MicroG is included since my last try to manually install it ended with a bootloop. lineage-15.1-microG seems to be the last official one. Only that it's nowhere to be found anymore.

I found this one and petefoth was so kind to upload his LOS20-microg build for pollux-windy again. (https://sourceforge.net/projects/pf-custom-roms/files/pollux/)
[Xperia Tablet Z Original Android Development] brodo:
Turns out... TWRP wont even flash it when the name is slightly wrong.
[Xperia Tablet Z Original Android Development] x52-curcuma:
LOS-15 or LOS-16, there 's no difference regarding the security patches. Both are too old and no support from Lineage anyway, ha ha.

As far as microG is concerned, at least LOS-16 is very easy to do. I've tried various microGs (MinMicroG, BitMicroG, NanoMicroG etc) in the past and found MinMicroG-Core 2.12.0 works the best.

And I've tested LOS-20. It is nice but lack of GPS and Bluetooth is not good for me. Also screen rotation on microG version is not working on my pollux-windy.

Good luck!
[Xperia Tablet Z Original Android Development] chext18:
下不了/怎么回事？
[Xperia Tablet Z Original Android Development] brodo:
I will try with LOS16 or 15 then. To be honest, I've never heard of variations of MicroG and after a quick search I found only MinMicroG. As far as I understand I simply install a MinMicroG package via Magisk?
[Xperia Tablet Z Original Android Development] x52-curcuma:
I don't remember what I did with LOS15. I've been using LOS16 on Pollux Windy for ages.

My current rom is lineage-16.0-20220131-UNOFFICIAL-pollux_windy released by RootKit, if I remembered correctly.

There are a few microG installation program. Used to be from BitGApps too. So far to me, MinMicroG is giving me the best result. You can install either as systemless (as Magisk module) or system. For some reason system install works better for me. Rename "MinMicroG-Standard-2.12.0" to "system-MinMicroG-Standard-2.12.0" makes it install as system. If flash before installing Magisk, default installation mode is system without renaming, I think.

How I did :

I did the backup of all applications with Swift Backup.

Reboot to TWRP, wipe Dalvik, cache, system, and data. (Make sure you make NANDbackup before wiping!)

Flash rom and Magisk (I used 24.1, higher one may cause boot loop)

Start Tab, install Magisk app and set it up (without up date to newer version)

I install Busy Box but not required.

Reboot to TWRP and flash MicroG, reboot to system.

Go to Magisk and install add-ons of MinMicroG as module.

After reboot system again, go to MicroG app and make sure all the boxes are check marked, and do the setups like location etc.

Restore all the apps using Swift Backups.

I disabled Google Playstore. Most of my apps are from FOSS, and some from Aurora Store.

I hope I remember the steps correctly.

Edit:

I forgot to mention one thing. After #9, reboot to TWRP and flash NanoDroid-23.1.2.20210117.zip

You can download it from Nanolx/NanoDroid at GitHub. With this, it seems like syncing with Google Contact, Calendar better. Mybe no need....
[Xperia Tablet Z Original Android Development] brodo:
Thank you for this detailed walkthrough!

I tried it this way with lineage-16.0. I hadnd't had any problem recently with Magisk 27 and the patch image installation but go for 24.1 for now.

After first boot the ROM gave me a black screen and the only UI elements was the power off/reboot menu after long pressing the power button. Removing the sd card solved this problem at first and I could set up Lineage. But there seems to be a bigger problem with the sd card. After another reboot it got stuck seemingly forever on "Tablet wird gestartet..." (maybe "starting up tablet..." in English) while checking contents of the sd card. I will try with a different card but for now I go on without.

What do you mean by add-ons of MinMicroG? Where do I find these and do I need them to make everything properly work? All the boxes of MicroG are already checked without any add-ons.

Location services don't work yet. Do I need add-ons for these?

Flashing NanoDroid-23.1.2.20210117.zip gave me a bootloop.

Edit

: not a bootloop, it just took ages to install a lot of apps I don't need at all.
[Xperia Tablet Z Original Android Development] x52-curcuma:
Sorry for your troubles. I guess even the same model tablet does not react the same way...

Is your SDCard formatted as extension of the internal storage? Mine is a separate one in fat format and never got the problem with any of my Sony Tabs.

Add-ons for MinMicroG is for fake Play store and Aurora store modules. You can get them at:

github.com/friendlyneighborhoodshane/minmicrog

For location service/GPS function, it's a different story. And that is the main reason why I stop testing LOS-20/21. But LOS-16 works with a little bit extra set ups.

First, install FasterGPS fro F-Droid. This app will re-write GPS.conf more suitable to your present location whenever you want.

I don't remember where I got the info, microG's unified Nlp is registered to system but fails to get the location. So you need to issue commands as root to device. The easiest way to me was just connect the tab to PC with usb cable and start adb shell, and paste the following lines as root.

pm grant com.google.android.gms android.permission.ACCESS_FINE_LOCATION

pm grant com.google.android.gms android.permission.ACCESS_COARSE_LOCATION

pm grant com.google.android.gms android.permission.ACCESS_BACKGROUND_LOCATION

That's all and GPS star working, quick, accurate.

So may be in your case you don't need NanoDroid. Maybe I didn't either!

But again, no tablets work exactly the same way, different apps and setups etc. So you may need to tweak here and there. I just hope my past trial and error with different microGs and various different setups might help you de-google this tablet.

Hey Brodo, I realized that we are discussing about LOS-16, but this is the forum for LOS-15! Maybe we should move to LOS-16 site if we continue.....
[Xperia Tablet Z Original Android Development] De7ro:
Hey i just installed your build with twrp-3.7.0_9-0-pollux_windy and wanted to use gapps, i sideloaded this: MindTheGapps-8.1.0-arm-20180808_153837 which the lienageos 15.1 guide recommends for this tablet , everything was going fine, it booted perfectly but suddenly the tablet froze and now it wont turn on. Your guide provided a link to gapps package which is compatible with android 8.0 but i used one which is compatible with 8.1, could this be why it crashed? Im also wondering if there is anything i can do about it or if ive lost my tablet, sorry if my explanation is not clear im a noob.
[Xperia Tablet Z Original Android Development] brodo:
If it's not a harware problem, your tab is hardly lost. LOS 15.1 corresponds to Android 8.1 so your MindTheGapps package should be fine.

You could check for a sign of life by holding volume up while plugging in an usb-cable (maybe the other end needs to be connected to a pc). This invokes fastboot mode and you see the power LED lighting up in blue. If you are in fastboot mode, you can try to flash TWRP temporarily into the boot partition and reboot, like so: https://wiki.lineageos.org/devices/pollux_windy/install/#installing-a-custom-recovery-using-fastboot

Maybe you can go on from there. At least you can try to save data or make a backup when in (temporarily) TWRP.
[Xperia Tablet Z Original Android Development] De7ro:
Hey, sorry for the late response, for whatever reason the tablet just refused to turn on but it now works perfectly, idk why but its fixed!
[Xperia Tablet Z Original Android Development] brodo:
Glad to hear that. Yeah, sometimes these things need just a little bit of time.

I once had a faulty charging cable that made my Xperia XZ1c turn off instantly and it showed no sign of life after that either. But with the "hold vol up and plug in an usb-cable"-method I could set it into fastboot mode and boot to system from there (via Windows cmd).

I guess it was a safety mechanism or some confusion in the circuitry (power surge, shortage, wrong polarization...) that made it play dead for a while. Seems it's really hard to actually kill these devices :)
[Xperia Tablet Z Original Android Development] ric84:
For everyone, who wants to know how it looks like :

https://youtu.be/4v0NTcUhu44

[YOUTUBE]https://youtu.be/4v0NTcUhu44[/YOUTUBE]
[Xperia Tablet Z Original Android Development] lineagefan123:
I found out what the reason is. It's the NFC.

When I disable it, there's no more phantom touches. When I enable it, they are back. It's not in every environment, could have to do with static load or something like this.

I didnt have this problem when I used unofficial lineage 14.1 for a year so I'd assume NFC was disabled per default there.

With official 14.1 I also had the problem. Now with 15.1. So it might be good to disable the feature per default.
[Xperia Tablet Z Original Android Development] jhcomputerguy:
I was able to boot into recovery fine on this rom although I don't only press volume down. Power down the tablet. At the same time as you are pressing the power button, alternate volume up and down quickly until you see the recovery screen. Works for me every time.
[Xperia Tablet Z Original Android Development] Angel155095:
Error Flashing

Hi I need some help, I try to flash the rom and the recovery show me an error number 7, I wipe and factory reset and nothing. I attach an image showing the error. Thanks for your help.
[Xperia Tablet Z Original Android Development] risant:
any nightfly release?
[Xperia Tablet Z Original Android Development] bowguy:
You need to update your recovery to 3.2.x. I had the same issue until I did the update. See the OP that you copied.
[Xperia Tablet Z Original Android Development] Angel155095:
Ok, but I download the latest image (twrp-3.0.2-0-pollux_windy) and doesn't work either, I don't know how to download the newest recovery (3.2). Thanks for your help.
[Xperia Tablet Z Original Android Development] bowguy:
Click the link to TWRP 3.2.x

Click the link under the development downloads.

Download twrp-3.2.1-0-pollux_windy.zip

Then follow the directions under

HOW TO INSTALL EASILY TO FOTA :

Skip the optional step and boot to recovery, install zip
[Xperia Tablet Z Original Android Development] sparkorn:
google play services has stopped

hi guys , no matter what i do after i installed this rom and flashed gapps 8.1 after my first boot i have google playe services has stopped working when i try going to setup my google account of go on play store and ive tried all the trouble shoot steps with clearing the cache as well as other trouble shooting steps found online.

Any ideas guys?
[Xperia Tablet Z Original Android Development] mirek54:
I have had the same problem. The tablet will not charge every time randomly, sometimes helps to reset, but once it was completely impossible. That's why I'm back on Lineage 14.1
[Xperia Tablet Z Original Android Development] lv19971030:
you can flash the zip provided in #6,wipe your data and cache then try again. it works.

---------- Post added at 04:23 PM ---------- Previous post was at 04:17 PM ----------

this rom is excellent.but supersu and gapps cannot be installed correctly.please fix it in the future update. thank you!
[Xperia Tablet Z Original Android Development] Rootk1t:
Supersu is kinda obsolete now. Use Magisk.

Gapps with fix in post #6 are working good. But you need to flash gapps after the first successful boot.
[Xperia Tablet Z Original Android Development] ric84:
I could install Gapps and SuperSU, everything works to me pretty well ;)
[Xperia Tablet Z Original Android Development] dude010:
Same issue for me as well. But even worst. Battery went down to 12% and it shut down. Now it's not charging and I can't boot into recovery or fastboot. That's not that great. Any idea?

But hey.... I'm not complaining. Thanks for the work to bring Oreo to our old Tablet. Quite impressive!

Thanks for your help.

Edit:

I managed to boot into TWRP (don't asked me how I made that but then I could charge my XTZ and went back to LineageOS 14.
[Xperia Tablet Z Original Android Development] shkyamuni31:
HI

Thanks for all your work

I just let my small contribution when i face off an issue.

You said to "install opengapps" after reboot and setup

That's exactly what was my issue.

If i do that , that 's not working on my SGP311...

All was installed , but when i try to use gmail, or something from GOOGLE, i was stuck on infinite "checking informations" loop.

However , when i install lineage 15.1 .zip then (no reboot - still in twrp 3.2.1) opengapps 8.1 directly after

All was OK

Hope it could help other users.
[Xperia Tablet Z Original Android Development] CaHbKaUp:
In my case opengapps 8.1 makes crashing SetupWizard if flashing right after LineageOS 15.1.

To solve you current problem read this https://xdaforums.com/showpost.php?p=75216800&postcount=6
[Xperia Tablet Z Original Android Development] merrymeal:
Model: pollux_windy

TWRP: 3.2.1.0

System: lineage-15.1-20180115-UNOFFICIAL-pollux_windy.zip

Open GApps: open_gapps-arm-8.1-stock-20180213-UNOFFICIAL.zip

It only worked installing LineageOS and then GApps at the same time (right one after the other), like shkyamuni31 said.

Terrific work, CaHbKaUp! :good: Everything is working smoothly, even better than LineageOS 14.1 official.
[Xperia Tablet Z Original Android Development] hellcat50:
for me it worked too with directly flashing
[Xperia Tablet Z Original Android Development] flofea2006:
Thanks for an excellent job. in my case I install lineageos 15.1, I install the gapps 8.1, I press in reboot but the lineage logo does not pass, it goes back to restart and enters twrp. I have not been able to enter the system, I already did the wipe to them and neither can they support me, my tablet is the SGP311
[Xperia Tablet Z Original Android Development] merrymeal:
Try this (the dd Install Method part). It worked for me.
[Xperia Tablet Z Original Android Development] flofea2006:
Something I'm doing wrong, perform the dd install procedure, install lineage-15.1-20180115-UNOFFICIAL-pollux_windy, open_gapps-arm-8.1-stock-20180218-UNOFFICIAL, restart, but the tablet remains the same, the lineage logo does not pass and restart the twrp
[Xperia Tablet Z Original Android Development] ric84:
Update works pretty well. But still an Issue with 60 fps Videos on Youtube, its still stuttering. Hope you or the Lineage Team can fix this soon :)

Thanks alot for all your Work (Hobby) :D
[Xperia Tablet Z Original Android Development] merrymeal:
You can try flashing FOTA formatter and TWRP from TWRP.
[Xperia Tablet Z Original Android Development] acdcat:
Hello thanks for all the cool romzzzz

anyone else have a problem with the screen rotation not working

thanks again
[Xperia Tablet Z Original Android Development] arogl:
I have just flashed and having problems with auto rotation and connecting to a WPA2 secured WLAN.
[Xperia Tablet Z Original Android Development] Poncho007:
I also have trouble with the screen rotation, everything else seems to work
[Xperia Tablet Z Original Android Development] flofea2006:
I did what you say but it stays the same, it restarts to twrp.

edit. also install lineage 14.1-20171212 with the gapps 7.1. it does not go beyond the lineage logo, I left it for half an hour and I do not start the system.
[Xperia Tablet Z Original Android Development] merrymeal:
Try with Flashtool. Time ago it worked for me.

1. Install Xperia Tablet Z drivers when running Flashtool.

2. Connect tablet in fastboot mode to PC.

4. Flash a TWRP img file (here there are earlier TWRP versions. TWRP-3.1.1-pollux_windy-FOTA-20170928.zip worked for my pollux_windy).

5. Reboot tablet to recovery and flash LineageOS.

5. Reboot and complete wizard.

6. Flash GApps from TWRP.

7. If everything is fine, update TWRP using dd Install Method.
[Xperia Tablet Z Original Android Development] flofea2006:
excellent, it worked, Flash TWRP img fileTWRP-3.1.1-pollux_windy-FOTA-20170928.zip, then install lineage 15.1 and the gapps 8.1 stock. I appreciate your support, thank you very much
[Xperia Tablet Z Original Android Development] MiguelSpartan:
how is this rom? is it fluid? bugs?
[Xperia Tablet Z Original Android Development] MarcoHD2:
hello,

this rom is excellent but the last update broke sensors and camera. Back to 20180115 version.

I'm on pollux_windy.
[Xperia Tablet Z Original Android Development] Bossey1:
GApps flashes after Magisk but Google Play Services keeps shutting down

Hi

on my SGP321 Tablet Z GApps 8.1 flashes after Magisk but Google Play Services keeps shutting down and will not allow adding of any Google accounts so play store is inaccessible.

I've tried wiping cache and Davlik after flashing GApps

I've tried wiping all my partitions including system and data then flashing Lineage os 15.1, rebooting to system them rebooting to recovery and (a) flashing GApps, rebooting to system. Same shutdown. (b) flashing 15.1 then Magisk then GApps. Same shutting down.

i even tried this: https://www.androidfilehost.com/?fid=817906626617958577

before flashing GApps but it doesn't solve the problem and stops Magisk installing.

I've done 10 wipes and installs now in different orders and always play services will not remain working so google initialisation is a non starter.

perhaps someone with this rom working successfully can post a GApps config file for the rest of us. I think I'm going to love this rom if I can make it work with GApps and Magisk so my banking apps and others like Alexa etc can work as they did with 14.1

Help :D
[Xperia Tablet Z Original Android Development] Bossey1:
Update

I used the advanced wipe and wiped Davlik, Data, system.

without rebooting:

I flashed 15.1 Pollux

returned to install and flashed Magisk

returned to install and flashed gmscore_sys-8.1.zip (https://xdaforums.com/showpost.php?p=75216800&postcount=6)

returned and flashed Open GApps 8.1 aroma with all the defaults.

Lo & behold a reboot without wiping davlik or cache then worked and started the registration process. All seems stable since midnight last night.

Just need to work out what to do to get Santander Uk mobile app working as even though I've hidden Magisk it still refuses to work.

Progress :victory:
[Xperia Tablet Z Original Android Development] manicmarvin:
This is great! Thank you guys. Just installed the 20180323 build which has fixed screen rotation and my camera app.

Straight install followed by wiping cache.

Loving my old paperweight again
[Xperia Tablet Z Original Android Development] tres_linguas:
Oreo for Pollux?!? Amazing!!!

Can't believe there is Android O for my freaking old Sony Tablet now - thanks a lot, dev :good::) I will flash the ROM soon and am already excited about it :)
[Xperia Tablet Z Original Android Development] tres_linguas:
Hey guys, the Rom is really great, my first impression is that it is actually even smoother than nougat and the look/ design for my taste is also fresher :svetius:

I don't know if anybody has the same problem but miracast does not work :crying:

I already tried the old "add-wlan.wfd.hdcp=disable-to-build.prop" -trick, but it doesn't solve the issue.

Any ideas how to fix it? Any hints are welcome :)

EDIT: works with Chromecast, but not with 'real' miracast (I tested using Microsoft Wireless Display Adapter)