yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S2 Android Development] vdelab:
Good morning all

After several days using my tablet rejuvenated with LOS18.1 (version 202111033), even though it was worse at the start, the use of the battery is still quite high and I do not have a really strong autonomy, not as before.

Here below I have some Gsam battery Reports illustrating thisi would welcome your advice.

The graph below are showing his the battery decreases when I am NOT using it. It is screen off, wifi on ( not in plane mode).

The kennel seems to concentrate a lot of the use, but why?

And when in plane mode, then it is much much better.

So, just because wifi can be used, the tablet seems to keep using it, even without solicitations....

View attachment 5501105

View attachment 5501107

View attachment 5501109

GSam Labs - Battery Monitor - Exporter Données

Kernel (Android OS)

6 janv. 2022 07:06:23

Détails Utilisation

Util. CPU:1h 29m 55s
Util. CPU (Fond Seulement):1h 29m 55s
Rester Eveillé:12h 20m 20s
Appl UID:0

Détails Wakelock

Paquets Inclus

Processus Inclus

file-storage
dhd_eventd
mmcqd/0rpmb
ion_noncontig_h
s3c-fb-vsync
cfinteractive0
cfinteractive4
thread_hotplug
ip6tables-restore
mc_log
kauditd
iptables-restore
zygote
ueventd
kswapd0
watchdog/0
watchdog/1
jbd2/mmcblk0p20
jbd2/mmcblk0p22
jbd2/mmcblk0p3-
init
netd
spi0
spi1
spi2
vold
rcu_preempt
hwrng
rcu_sched
irq/512-s2mps13
irq/576-lsm6ds3
irq/590-yas_mag
irq/570-synapti
irq/99-11460000
kthreadd
mc_fastcall
kbase_event
installd
s3c-fb-update
kworker/0:0
kworker/0:1
kworker/0:2
kworker/0:3
kworker/0:4
kworker/1:0
kworker/1:1
kworker/1:2
kworker/1:3
kworker/2:1
kworker/2:2
kworker/3:1
kworker/3:2
kworker/4:1
kworker/4:2
kworker/5:0
kworker/5:1
kworker/6:0
kworker/6:2
kworker/7:1
kworker/7:2
magiskd
mmcqd/0boot0
mmcqd/0boot1
irq/578-lsm6ds3
irq/453-14c1000
mmcqd/0
mmcqd/1
irq/588-cs5032_
ksoftirqd/0
ksoftirqd/1
ksoftirqd/2
ksoftirqd/3
ksoftirqd/4
ksoftirqd/5
ksoftirqd/6
ksoftirqd/7
migration/0
migration/1
migration/2
migration/3
storaged
kworker/0:1H
kworker/1:0H
kworker/1:1H
irq/561-muic-ir
kworker/u16:0
kworker/u16:1
kworker/u16:2
kworker/u16:3
kworker/u16:4
kworker/u16:5
kworker/u17:0
kworker/u17:1
kworker/u17:2
kworker/u17:3

Any guess?

What could I do?

Is there a kennel manager usable with this LOS ROM?

thanks in advance
[Galaxy Tab S2 Android Development] bmwdroid:
@vdelab "kernel adiutor" 0.9.73.. from F-droid is working.

Of course root needed.
[Galaxy Tab S2 Android Development] ADK274:
1103 is great thanks to bmwdroid. Only issue is selinux warnings. Any ideas?
[Galaxy Tab S2 Android Development] ADK274:
Seems to coincide with reboots but on second boot more stable..
[Galaxy Tab S2 Android Development] gutmaj:
I've found some failures in RIL lib startup. Maybe you can find i supportive with modem troubleshooting.
[Galaxy Tab S2 Android Development] halloo13:
I'm curious when will Android 11 based LineageOS 18.1 come out for the Tab S2 2016 (T813) ?
[Galaxy Tab S2 Android Development] gutmaj:
Hi.

Begin of January I've installed this ROM on my 715 encouraged by its fresh look of Android 12 and de-bloated content.

My setup (clean install over stock Marshmallow):

> LOS: lineage-18.1-20211209-UNOFFICIAL-gts28ltexx

> gapps: open_gapps-arm-11.0-nano-20211211

> twrp: 3.6.0_9-0-gts28ltexx

So far not much days of usage, but a few findings are there

A. SE warnings at startup

B. quite fast battery drain

C. Missing SIM, IMEI and finally modem not operating - probably problem with modem startup and/or RIL. GSM nor LTE doesn't work.

I'm eager to contribute to troubleshoot it, therfore enclosing some log files with suspected errors. Hope will help devs to nail it down, or tell it is only unique issue I have on my setup.

There is many times reoccurring fail related to libsec-ril.so opening.

Can anybody else share their logcat -b radio and see whther RIL startup is problem there?
[Galaxy Tab S2 Android Development] skas_2002:
Using 1203 version on my t815 since 1203(1209 wifi not working). Also experiencing battery drain and no sim. Otherwise tablet works as if it is new.
[Galaxy Tab S2 Android Development] bmwdroid:
Just thank me for storing it.

Thanks gotta go first to dev @ripee.
[Galaxy Tab S2 Android Development] Itzi9:
Hey @bmwdroid could you please provide me the link to the 20211103 build for T810 as well?

Thanks in advance
[Galaxy Tab S2 Android Development] ripee:
Thanks gotta go first to ananjaser.
[Galaxy Tab S2 Android Development] mikey williams:
@bmwdroid could you please provide me the link to the 20211103 build for T810 as well? TIA
[Galaxy Tab S2 Android Development] gutmaj:
If poasible I'm also interested to test 1103 on my 715 device. Can I get download link?
[Galaxy Tab S2 Android Development] bmwdroid:
@mikey williams @gutmaj done but only gts210wifi ROM available
[Galaxy Tab S2 Android Development] gutmaj:
Thanks, but it not apply for my device unfortuanetly, whiel I have 715 device
[Galaxy Tab S2 Android Development] chappatti:
@bmwdroid Can you please provide me the link to the 20211103 build for T810?

Many thanks!!
[Galaxy Tab S2 Android Development] chappatti:
Would really appreciate a link to that version, please!!
[Galaxy Tab S2 Android Development] Sappron:
Hi guys and devs just wanna ask if there is some plan about android 12 on this tab.
[Galaxy Tab S2 Android Development] chappatti:
No one has a link?
[Galaxy Tab S2 Android Development] Itzi9:
Re-post, in case it was missed:

Hey @bmwdroid could you please provide me the link to the 20211103 build for T810 as well?

Thanks in advance
[Galaxy Tab S2 Android Development] ananjaser1211:
The libsec-ril file has been incorrectly patched (usually it is due to a bug in patchelf on some OS'es) , so the library is basically broken and wont load. i patch my libraries with patchelf version 0.9 which works fine so ripee can repatch the file with that version and it should be ok
[Galaxy Tab S2 Android Development] metterschling:
According to this Oneplus 3T device thread, Android 12 requires a recent kernel. This might be a huge barrier to get support for our devices as well. Bringing a new Linux kernel to a device is a massive project.
[Galaxy Tab S2 Android Development] metterschling:
Here is the script I used to inspect libsec-ril.so files on the ROM builds - might be useful for others:

#!/bin/sh
# Example: losimgmount.sh lineage-17.1-20210825-UNOFFICIAL-gts28ltexx.zip
unzip $1
brotli --decompress system.new.dat.br -o system.new.dat
sdat2img.py system.transfer.list system.new.dat system.img
mkdir mnt
sudo mount -t ext4 -o loop $(pwd)/system.img $(pwd)/mnt/

The brotli tool could be installed with apt on my Ubuntu system, sdat2img I got from here.
[Galaxy Tab S2 Android Development] rholm:
What app is holding the lock?

Cheers,

Rich
[Galaxy Tab S2 Android Development] bonuzzz:
Camera
[Galaxy Tab S2 Android Development] rholm:
What if you kill or freeze it? I don't see it. Is it the standard camera app?

Cheers,

Rich
[Galaxy Tab S2 Android Development] bonuzzz:
I think something locks or breaks camera interface. I could not advice anything here...
[Galaxy Tab S2 Android Development] dannychow:
I find that the AudioFX EQ only works using the internal Music Player but not other apps like youtube or even ring tone. So, the internal speaker easily be distorted by the heavy bass at high volume.

You can install ViPER4Android and reduce the bass (all the frequencies under 1kHz). It can improve the sound cracking issue and it applies to all other apps like youtube etc.
[Galaxy Tab S2 Android Development] snsnse:
Does someone (most likely the devs) know whether the MHL interface is fully supported in this build of LOS 15.1? Or are there known issues regarding audio over HDMI?

Thanks again
[Galaxy Tab S2 Android Development] bonuzzz:
short answer is audio over hdmi doesn't work here.

long answer is current audio implementation doesn't support audio over hdmi and probably will never be. because of that to be honest i didn't test mhl here and disabled hdmi support in later builds.

I have another audio implementation and i will test audio in mhl if i find cable in my mess.

And it also depends what tablet variant you have.
[Galaxy Tab S2 Android Development] snsnse:
Thanks a lot for clarifying the current status. As mentioned in the previous posts, video over HDMI works just fine (T815 variant), so I guess HDMI support is not disabled entirely? It'd be great to have MHL/HDMI working on the T815, actually it was the reason I bought this variant in the first place ;) Please let me know how I can help (although I doubt private life will leave room for any coding at the moment).

Cheers
[Galaxy Tab S2 Android Development] bonuzzz:
I found mhl cable. I dont have audio over hdmi on both implementations. Tried to fix quickly, but unsuccessfully. I doubt this situation will change further, so if you need mhl it's better to stay with stock rom
[Galaxy Tab S2 Android Development] TomKeddie:
Minor issues on 715Y

I'm loving the new lighter feel of my 715Y using this rom (20190130) but I'm seeing some weirdness that would be good to dig into a little.

- The phone is stuck on handsfree, audio comes from the speaker at the bottom regardless of the handsfree setting.

- When I send SMS I get an error message about how the message could not be sent although people receive messages I send, I've tried varies apps, all report an error on send.

- I mentioned this on telegram, I see the wrong carrier name displayed, my carrier (Public Mobile) is a MVNO, I see the name of the parent provider (Telus). This isn't a big deal unless it's indicative of something else wrong. Both are listed in the apns-conf.xml file.

I'm a competent c/c++ developer, would be happy to dig a little but I need some pointers.

Thanks,

Tom
[Galaxy Tab S2 Android Development] davidnw:
If you check the daily change log you will see that the Developers are actively working on Bluetooth and audio issues,. They added more today so wait a few days and do an update.
[Galaxy Tab S2 Android Development] dannychow:
I 've tried the 20190130 build on my T815 device for a few days. In general, it 's very fast and stable for my daily used.

I found the following issues so far:

1. VPN doesn't work. Everytime I try to connect to a VPN server, it return "unsuccessful" very fast.

2. The build-in EQ app, AudioFX, only applies to the build-in music player app. It can't apply to other music player, video player, youtube, etc.

So, the speaker easily have crack sound at high volume when playing youtube, ringtone, etc. (In stock ROM, I beleive it applied a default EQ filter to cut the bass to prevent the crack)

Workaround - Install Viper4Android for EQ instead.
[Galaxy Tab S2 Android Development] davidnw:
I just tried the Tunnel Bear VPN app and service on my T813 and it works.

If you have a ad blocker app installed ( I have Blokada} it may use a local VPN to operate and you have to turn it off to use another VPN.

AudioFX works for me using VLC
[Galaxy Tab S2 Android Development] amau05:
A t810 here and ProtonVPN app work fine even the function to prevent connection without VPN.
[Galaxy Tab S2 Android Development] tabbinG:
Nougout keycodes on oreo

Hi

i have a external keyboard and it seems all roms dont have any keycodes for android setup. Or has there been a major change. Is it possible to import the keycodes into the next rom release? external keyboard helper does not work, or fix this problem on any roms.

I ask here as this rom works best for me.
[Galaxy Tab S2 Android Development] ABLomas:
T710 with latest (01.30) build.

Clean tablet without any apps (gapps installed from 1st post, nothing more) drains 42% battery/24h (so in 2 days battery is empty) with wifi off.

Settings > battery do not show anything consuming battery (1% google play services, 1% display - prob. when i was checking).

I had no issue with batery drain in stock firmware, at least not at this rate. Currently testing if it would work better with extreme battery saving, but this does not sound right. And it actually drains battery - can't turn on tablet after 3 days, plugging into charger it shows 1% so it's probably completely empty.

Anyone noticed something similar? How can i check detailed battery data?
[Galaxy Tab S2 Android Development] xormaster:
Hi

this is a very good and stable ROM , but I can not use my exFAT formatted SD-Cards.

I have video- and WIKI-Files with more the 4GB file size on my SD-Cards so it is not possible to use FAT formatted cards.

Is there no exFAT support in this Lineage ROM ? Can I instead use ext2, or maybe the journaling ext4?

Thank you
[Galaxy Tab S2 Android Development] zouplouf:
Instructions for the non-technicaly enclined

Hello. I am a little shy to post as I seem to be way less expert than you guys.

I am a simple Tab S2 (T810) user that has Samsung 7.0 installed but I am interested in trying this ROM.

I read the instructions in the first message but they are too technical for me.

Are there more simple step-by-step instructions to get from my current state to final installation of this ROM ?

Thank you, Louis
[Galaxy Tab S2 Android Development] tripLr:
Flash twrp the first time for Aany device

1. search for odin and unzip it onto a windows computer

2. Download the twrp mentioned in the OP (first post) to your windows computer.

3. Download the rom in the OP link to your tablet.

4. Boot the tablet to download mode.

5. Open up odin and plug in your tablet with usb to windows computer. Windows should install Usb drivers

If not search for samsung 710 usb drivers windows<yourversion>

6. If succesfull the com window in odin will light up with a blue status.

7 turn off auto reboot in odin

8. Using AP button, browse to the twrp file you downloaded and select

9. Flash twrp

10. After successful flash you must NOT allow the tablet to reboot or you will have to try the above all over on this device you can't pull the battery, but you can force a reboot by usi g the dowNload keys AT THE SAME TIME (home, power, volume down). This forces a reboot anytime

Important, as soon as th3 screen goes blank, press and hold AT THE SAME TIME (volume UP , home and power ) referred to as restore or boot to twrp.

Once twrp comes up the first time, it will ask you for write access, allow.

Click bqckup, select storage (internal, external sdcard, or otg) select all partitions, and save your stock rom prior to flashing the new one.

Select wipe, custom wipe, and wipe ONLY SYSTEM AND DATA AND CACHE

Go back select Install and look for where you download the rom.

Install the rom, root is included

install gapps now or later.

If you install gapps, you will boot up and then be asked to setup your google account via wifi.

EnjOy :laugh:
[Galaxy Tab S2 Android Development] metterschling:
Thank you so much @ananjaser1211 for your prompt reply and resolution! You rock!
[Galaxy Tab S2 Android Development] bmwdroid:
@chappatti @Itzi9 you've got mail
[Galaxy Tab S2 Android Development] gutmaj:
Hi. Where I can find LOS17.1 which works on T715. I' m looking for something where modem works - would like to avoid fallback to stock ROM. Can you share any link?
[Galaxy Tab S2 Android Development] vdelab:
Hello,

back after a little more than a week on the LOS18.1 (20211103 version).

It is running quite well, and the only (but main) issue is really the battery drain.

I think that I would not be able to keep the device alive and connected (wifi) for more than 12h, quite lower than the stock ROM I moved from.

What is weird is that it is really when Wifi is ON. In plane mode (or just wifi off), the drain disappears (I think it could last almost a week at the rate I have seen).

I am trying now to use naptime (rooted) and I'll see if it brings added value.

I'll keep you posted.
[Galaxy Tab S2 Android Development] Lolo78:
Hello @bmwdroid may I also have the link to the 1103 build ?

Many thanks in advance ;)
[Galaxy Tab S2 Android Development] bmwdroid:
@Lolo78 you should have it by now
[Galaxy Tab S2 Android Development] gutmaj:
@ripee @ananjaser1211 are you planing new build (for 715/815) with correctly patched libsec-ril?
[Galaxy Tab S2 Android Development] gutmaj:
@vdelab do you have somehwere archive of 1103 build for 715 device?
[Galaxy Tab S2 Android Development] vdelab:
Hello @gutmaj ,

Unfortunately I have only the T810 version.
[Galaxy Tab S2 Android Development] metterschling:
@gutmaj I've sent a PM. Please note that the 20210825 build has got various issues like MTP, ADB not working. But RIL should work.
[Galaxy Tab S2 Android Development] kennyh327:
Hi @bmwdroid , could I please also get a link for:

lineage-18.1-20211103-UNOFFICIAL-gts210wifi ?

Thank you
[Galaxy Tab S2 Android Development] Highlander0681:
Hello. Would I be able to run Netflix in FullHD (or at least HD) with this ROM? With the stock (android 7) it's limited at SD.
[Galaxy Tab S2 Android Development] bmwdroid:
@kennyh327 should have got PM
[Galaxy Tab S2 Android Development] sirrupil:
To elaborate on installing SM-T815/Y: gts210ltexx on T817T:

Starting from stock Android 7.0

Backup all your data!

Enable OEM Unlock, if it isn't already

Boot to Download Mode

Use Odin3 to flash twrp-3.6.0_9-0-gts210ltexx.img.tar

Boot to Recovery Mode

Swipe to allow modifications

Make a full backup of all partitions using TWRP and copy it to your PC or somewhere off your tablet!

Wipe, Advanced Wipe, select Dalvik/ART Cache, System, Data, Internal Storage, Cache, then Swipe to Wipe

Back, Back, Format Data, type yes, click checkmark to continue.

Go Back, Back, Back, Mount, Only need to select Data, click Mount USB Storage

Connect to PC via USB

Copy lineage-18.1-20211209-UNOFFICIAL-gts210ltexx.zip to Internal Storage

Copy boot.img from lineage-18.1-20211209-UNOFFICIAL-gts210ltexx.zip to Internal Storage

Copy new.system.img to Internal Storage (to get this file, use system.new.dat.br Extractor Tool, url: https://www.droidwin.com/extract-system-new-dat-br-and-system-new-dat-files)

Copy Magisk-v23.0.zip to Internal Storage

Click Unmount in TWRP

Select to mount System

Back, Install, choose lineage-18.1-20211209-UNOFFICIAL-gts210ltexx.zip, Swipe to confirm Flash, it will fail

Go back, click Install Image, choose boot.img, select Boot, Swipe to confirm Flash

Go Back, Back, Back, Mount, select System to mount it again

Go Back, Advanced, Terminal, type the below commands:

rm -r /system/*

mkdir /tmp/sys

mount /sdcard/new.system.img /tmp/sys

cp -R /tmp/sys/* /system/

Go Back, Back, Install, choose Magisk-v23.0.zip, Swipe to confirm Flash

Reboot System
[Galaxy Tab S2 Android Development] joshumbriaco:
Is there a file lineage 18 for the gts210vewifi?
[Galaxy Tab S2 Android Development] TimDawgz:
Link to that file is in post #1. Folks have been asking for links to 1103 because it's no longer on the dev's backup.
[Galaxy Tab S2 Android Development] joshumbriaco:
Thanks for the quick response! that is great news, but I found out that I have a gts210vewifi. Is there a lineage 18 file for the gts210vewifi?
[Galaxy Tab S2 Android Development] TimDawgz:
I believe that gts210vewifi is model T813, which doesn't appear to be supported on this ROM. I would try checking out the Lineage 17.1 thread to see if that helps.

[ROM][UNOFFICIAL][10] LineageOS 17.1 [T713][T719][T813][T819]

LineageOS is a free, community built, aftermarket firmware distribution of Android, which is designed to increase performance and reliability over stock Android for your device. All the source code for LineageOS is available in the LineageOS...

xdaforums.com
[Galaxy Tab S2 Android Development] TimDawgz:
I know that I'm replying to an older message, but this helped me out.

I had flashed with the 1103 build and OpenGapps. It was mostly fine, but there were still a few minor issues. Switching over to BiTGapps solved those remaining issues.
[Galaxy Tab S2 Android Development] lojelo:
Hi bmwdroid

Is there any chance you can send me a download link for lineage-18.1-20211103-UNOFFICIAL-gts210wifi just started having WiFi disconnection issues with the latest version.

Many thanks
[Galaxy Tab S2 Android Development] bmwdroid:
Hi @lojelo just done.

Please put a "@" before the members name which results there in a notification.

I've just seen your post accidentally.
[Galaxy Tab S2 Android Development] lojelo:
Many thanks for this will give an update soon as I have updated the tablet.

Well I would get back to you sooner with an update with it working, but I am having problems with my tablet not letting me boot into twrp I have just flashed it again with odin and I just can't get back into twrp.
[Galaxy Tab S2 Android Development] bmwdroid:
Same problem on mine when I first flashed TWRP.

Think I needed 5 flashs as my power button doesn't work properly.

Uncheck "Auto reboot" in Odin gives you more chances to access TWRP. Or don't uncheck it and press button combo even before it reboots automatically.

Can't remember if terminal command "fastboot reboot recovery" works but might try as well when "auto reboot" is unchecked.

Of course ADB has to be installed first.
[Galaxy Tab S2 Android Development] lojelo:
Finally got in it but having problems when adding openapps or bitgapps

When trying open_gapps-arm-11.0-pico-20220121 I get several different errors from code 61 or 64

when trying BiTGApps-arm-11.0.0-R44_signed.zip it just errors then dismounts
[Galaxy Tab S2 Android Development] bmwdroid:
Try to get hold of older versions.

Last one I used was 41.

Kept 29 and 38 as well which worked as well.

Btw. when having installed Magisk to root I suggest this to reboot wherever to you want without using buttons.
[Galaxy Tab S2 Android Development] lojelo:
Got gapps installed took another download must have had a corrupted download.

The tablet has been rooted for quite a while I rooted it with Odin & CF-Auto-Root-gts210wifi-gts210wifixx-smt810.tar

Which reboot app is that mate cos there is no url in the title and will this boot me into twrp using the recovery button!

Only just noticed that CF-Auto-Root doesn't actually root the device, here we go again with more attempts to get into twrp lol

Wow quite surprised only took 1 attempt to get into twrp this time, installed Magisk, installed quick reboot and everything is working like a charm.

Many thanks @ bmwdroid for all your help.
[Galaxy Tab S2 Android Development] shorty1483:
Does anyone still have lineage-18.1-20211103-UNOFFICIAL-gts210ltexx version?

Thanks
[Galaxy Tab S2 Android Development] bmwdroid:
I do and have sent you PM
[Galaxy Tab S2 Android Development] shorty1483:
Thank you but I'm searching for gts210lte version. 😜
[Galaxy Tab S2 Android Development] Wojomo:
Hi everybody!

Just wanted to share some experiences with my T810 and the 1208.

After installation I also had these issues with deconnecting WIFI and battery consumption.

After another 2 days I lost patience and asked for the 1103 to @bmwdroid .

However, since that day and w/o having installed the 1103, the 1208 is running rather in a satisfactory way. Every 4to5 days I find a disconnect. But double tap on flight mode is settling the issue.

Battery drain seems not much worse than before (not to forget the tablet's age...).

Would you nevertheless recommend to switch back to 1103?

Thanks for your hints.
[Galaxy Tab S2 Android Development] dynobear:
@dcaffeine8d that sounds great and I'd love to try this as well. However, my sm-t810 isn't rooted, so I wasn't able to use nktweaks.

Would anyone know how to configure allowing wlan wakelocks using ADB ?

Otherwise / in the meantime, @bmwdroid would you be so kind to provide me the link to the 20211103 version for the gts210wifi ?
[Galaxy Tab S2 Android Development] bmwdroid:
Sorry mate.

I've overlooked that and don't have it.
[Galaxy Tab S2 Android Development] shorty1483:
What exact wakelooks did you allow? wlan_ctrl_wake and wlan_rx_wake?
[Galaxy Tab S2 Android Development] dynobear:
@bmwdroid would you be so kind to provide me the link to the 20211103 version for the gts210wifi ?
[Galaxy Tab S2 Android Development] bmwdroid:
@dynobear just done
[Galaxy Tab S2 Android Development] dynobear:
I can confirm that @MrBlubke , on my T810 the physical home/fingerprint butten did never lid up either