T710 microphone issues - Galaxy Tab S2 Q&A, Help & Troubleshooting

Hi,
I have a t710 running ripee's lineage16 version 20200311.
I understand there are some mike issues related to proprietary samsung drivers.
My symptoms are low volume and an echo on google hangouts/duo.
Can anyone provide a link to patches for improving the situation?
Thanks for any help!

Related

[5.1.1][LMY47X] OmniRom UNOFFICIAL

Whats working:
Bluetooth
Wifi
Not working
Audio
Bad Mapped ouya controller
Lines in screen
Cut screen
Download:
OmniROM: http://www.mediafire.com/download/3cx4dj211rbdd5c/OmniROM-5.1.1-20150517-cardhu-HOMEMADE.zip
Souce code:
OTA App: https://github.com/werty100/android_packages_apps_OpenDelta (not configure jet)
kernel:https://github.com/werty100/android_kernel_ouya_cardhu
Device tree:https://github.com/werty100/android_device_ouya_cardhu
Vendor:https://github.com/werty100/android_vendor_ouya_cardhu
Changelog
CHANGELOG:
ALPHA:
Repo sync omni rom
Prebuilt kernel
2015-05-16:
Antutu 22.000
Kernel build
Update some Blobs with nexus 7
New HDMI permissions LP
Fix sound settings
2015-05-17:
OMNI vendor stuff
Some changes in kernel
Improve stability and speed
Other workaround for sound
2015-05-19:
IN PROGRESS
TWRP settings
LZMA compression in kernel
4.7 arm by default
Audio new config
Omni dependecies with 4.7 arm
Fix building OMNIRom complitly
Maybe I fix some WIFI problems in new build and audio oned
WIFI problems fixing now is connecting to encrypted ones...
Lines apeared graphic gliches or my ouya ?¿ Please some test it
More testing....
Audio still the same
Fix random frezzes and reboot....
werty100 said:
Maybe I fix some WIFI problems in new build and audio oned
WIFI problems fixing now is connecting to encrypted ones...
Lines apeared graphic gliches or my ouya ?¿ Please some test it
More testing....
Audio still the same
Fix random frezzes and reboot....
Click to expand...
Click to collapse
https://source.android.com/devices/tv/HDMI-CEC.html reading this....
werty100 said:
https://source.android.com/devices/tv/HDMI-CEC.html reading this....
Click to expand...
Click to collapse
Corrected please this should be the problem with audio and lines new changes in LP at less audio should be fix
werty100 said:
Corrected please this should be the problem with audio and lines new changes in LP at less audio should be fix
Click to expand...
Click to collapse
New build with HDMI new adroid stuff...
I have tested it with ro.hdmi.device_type=4 and it is not working i have no more time and i have uploaded new build with ro.hdmi.device_type=0 for someone to test it.
Does this work for the black edition ouya?
-Edit-
Will go ahead and test for myself. Thank you! BTW I posted the CM-11 rom you were asking about in the other thread. Sorry I didn't get on sooner. All I did was copy firmware from stock ouya into update zip and bluetooth started working.
I need help with audio and also to take logcat i cant take them
werty100 said:
I need help with audio and also to take logcat i cant take them
Click to expand...
Click to collapse
Today no build but i am progresing audio and lines problem and triying to fit twrp on ouya and fix build to complete and also if all this work becoming official omni(i need to talk with them)
werty100 said:
Today no build but i am progresing audio and lines problem and triying to fit twrp on ouya and fix build to complete and also if all this work becoming official omni(i need to talk with them)
Click to expand...
Click to collapse
Making new build with fixes i figure that lines at less should be fix and we have problems with twrp for making it fit using lzma lest see:fingers-crossed::fingers-crossed::fingers-crossed:
Seems that twrp at the moment cant fit ouya working on it...
And working on getting ouya otas zips
And in few minutes i will test build
Overclocking the Ouya has been known to over heat. You may need to replace the heatsink. http://www.eternityproject.eu/topic/1114917-hardware-modding-for-ouya/
Does this utilize the boot menu and start the boot IMG off of /system like the cm11 builds did?
I mapped my Ouya controllers to my Nexus Player running 5.1.1. I'm assuming the mapping should work on this ROM as well. I can share the file that I used and modified to get it to work when I get home.
There is a full set of keymaps available for download in the cm11 thread. I have used it to get my ouya controller working with several ROMs on different devices.
Excited
I'm so happy this ROM is in development. Was worried the OUYA was dead. Keep up the great work guys.
@werty100 - Good on you! Amazing work.
This is what a real developer is like.
Happy to see you around here.
frickinjerms said:
Does this utilize the boot menu and start the boot IMG off of /system like the cm11 builds did?
Click to expand...
Click to collapse
Yes it is using boot menu but now i am having roblems no build now is booting i dont know why is so stupid
Making new release hop it works
Good luck!
hi,
any experience with this rom from somebody?
is it possible to install the current kodi.tv v15 on it?
does it work?
thx

microphone level low - configurable kernel for i9295 ?

On my rooted "samsung galaxy S4 active" (GT-i9295) ... I have been happy with the cm-12.1-20160822-NIGHTLY-jactivelte.zip ... until I used it for telephoning now
The microphone level is really really low. The person on the other end can hardly understand me. And the soundrecorder also has very very low volume.
There are workarounds. I have googled a lot, and found instructions how to root-edit files in /system/ - which all did not help, because one file from the workaround wasn't even existing in my device.
There seems to be another way, using STweaks, but for the above mentioned cm-12.1-... it says "Sorry, no kernel support".
So I am looking for alternatives, please help. Some ideas:
a completely different ROM than the cm-12.1-20160822-NIGHTLY-jactivelte.zip - any chance for an Android 6.0.1 anytime soon?
a different kernel which is compatible with i9295 and my (seems to be newest?) CM12.1, with which I can use STweaks or something similar
another app which allows to change the mic boost level
an instructions manual for cm12.1 which tells me which system files to edit how
your way - what else could I do?
Thanks a lot!
Try CM13.1 https://drive.google.com/drive/u/0/mobile/folders/0B7vmsLnZghSUZ0o0aEtLNUdYR1E

[XZ][F8331/2] AOSP Pie builds [Stable] [Updates]

New build up at sx.ix5.org, use version 2018-10-30.
Changelog here: https://sx.ix5.org/changelog.html
Install guide: Flashing AOSP on Xperia XZ
XDA:DevDB Information
AOSP Pie based on Sony Open Devices Project, ROM for the Sony Xperia XZ
Contributors
local__hero, fastbooking, oshmoun
Source Code: https://git.ix5.org/felix/local-manifests-ix5/src/branch/ix5-customizations
ROM OS Version: 9.x Pie
ROM Kernel: Linux 4.x
ROM Firmware Required: .184 / .192
Based On: AOSP
Version Information
Status: Nightly
Created 2018-11-09
Last Updated 2019-05-17
Reporting bugs
Important: Read the bug list before posting. Anyone can add bugs to the list, just follow the rules.
If you have questions, ask them in this thread: Xperia XZ Pie ROMs Questions and Answers Thread
Don't make me ask you for logs every time!​
I will repeat the rules again here:
Rules:
New bugs must include version where error popped up and which oem version you are using
Only reproducible errors
Should include adb logcat (linked in a pastebin service like https://del.dog)
Must include clear description what is wrong
If it is a visual/SystemUI bug, only report it here
If it is an internal bug(e.g. fingerprint crashes device), report it to the Sony bugtracker as well!
Always try to fix the bug yourself first! Then submit a pull request to Sony
Must search if error has already been reported (bug tracker, this document, dev buglist)
If you've reported the issue somewhere else already and just want to track it here as well, add a link
Before reporting a bug, always make sure to isolate it. That means, wipe everything, install only the ROM without GApps and Magisk and see if the problem still exists. Only then report the bug!
---
If you have questions, ask them in this thread: Xperia XZ Pie ROMs Questions and Answers Thread​
---
In 9.11
1. Everything still works
2. Charging with plugged at screen off works
3. On gcam portrait mode and night photo gives purple glitched image
And phone seems to be faster.
Bug: 9.11 with oem v2- Clean install
- Hotspot not working
- Phone call issue - Mic and speaker not working, cannot hear anything or say anything << Listed in the bug
- Top speaker not working
Still testing.
An update
Yes, we know calling is kinda broken right now on both oem versions. Yes, we know you have problems with dualsim devices because you didn't flash the dualsim patcher. Yes, battery life isn't very good because we are testing out some increased CPU frequencies so video doesn't stutter. (you can go back to the 11-05 build which has the old CPU freqs and compare).
We're aware of a lot of these issues, and they are all tracked in the current buglist (see post #2).
Development happens mostly in the Sony open devices program, with a few heroic volunteers contributing. Right now, a lot of work is being done to get the current flagships(think XZ2, XZ3) to a semi-stable state, but work for our device is done as well.
You can check progress in the sonyxperiadev repos. E.g. recently, some changes to the telephony HAL integration have been made, see the common device repo.
Why is it taking so long to fix all this?
Sony buys many of their processors from Qualcomm. Lots of stuff in phones is proprietary and covered in patents, and you can only get the source code if you sign an NDA. So even if Sony wanted to, they could not release the source for a lot of things.
See all the files with the name "qti" in them? That's Qualcomm Technologies, Inc. See all the repos named something like "qcom-something-something"? That's Qualcomm.
When there's a problem, we have to report it to Sony, who report it to Qualcomm. This takes time already. And don't forget Qualcomm has suppliers as well, and so on and so on. The same is true for other parts, e.g. the Wi-Fi chips are from Broadcom.
Then, support for hardware stuff is on many levels. A lot of low-level drivers that are driving the hardware are on the /odm partition(the one that the oemv1/v2 blobs get flashed to). Then there is work to be done tweaking the actual hardware abstraction layer(HAL) interfaces that work with these driver blobs. Then there are kernel drivers that can go wrong and mess up. Then it can be a problem somewhere higher up in the Android frameworks. Lots of detective work.
If new blobs from Qualcomm come out, Sony itself needs to do some testing, and then releases a new oem version. It won't just magically work, we need to tweak the SODP vendor side as well. It could be as easy as changing a version to a newer one, but it could also be a lot harder. The sonyxperiadev crew knows what's needed to integrate these new blobs, but it still takes time and testing.
Qualcomm provide the a lot of the source code to work with their hardware and blobs from the higher-level Android side in their CodeAurora forum (CAF) repositories. The relevant changes then get merged into the sonyxperiadev repos and we can test if it works(or if something new is broken...).
For more info, read the Android documentation on hardware etc.
The chip in our phone, the MSM8996, is quite old already(even the SDM845 in the XZ2/3 is already quite old in processor standards). We can be luck that Qualcomm still provides support. But it's not a priority to them, they want to sell new
ones of course. That is also a reason updates can take longer.
Regarding full forced-reboot crashes:
Sadly, as of now, for some people the "/sys/fs/pstore" folder does not get populated after a crash. This is important to diagnose what happened.
You can apply this patch to force a kernel panic on every reboot, but I would recommend that you do
so only if you know what you are doing.
Regarding battery life:
Please install BetterBatteryStats
and find out what is draining the battery.
This could really help us out! But first, make sure you are not running any GApps, because the Google Mobile Services are a massive pile of battery drain.
If you absolutely have to use GApps, please run only the "pico" GApps version!
---
About the posts here:
Like 90% of posts here and in the old thread are full of people who just plain refuse to read, asking how to install or demanding someone help them out with something that has already been answered time and time again. This makes it extremely annoying for the us who have to scroll through pages of useless stuff to find the genuine bug reports. You do realize this site is literally named "xda-developers", right? If you're unclear on the concept, please read this: https://forum.xda-developers.com/showpost.php?p=16682226&postcount=2441
"This doesn't work!" - "This thing crashes!" - That gives us almost no clue what is happening. We need logs, or we can't do anything about it. I have only one phone, and I only use the stock ROM. There are a lot of nice testers who send others and me helpful bug reports, with detailed explanations in what circumstances it occured, with proper logs.
With that info, the Sony open devices team and us can actually look into issues.
So please, if something doesn't work AND we are not aware of it yet, post it to the bug list (not here!) and attach a link to a log that you uploaded, e.g. to a service like hastebin.com.
nhicko95 said:
how is battery life?
Click to expand...
Click to collapse
Test it out, please. And don't forget to report the diagnosed battery stats.
DarkPrinciple said:
I should be able to get to 12 lunch with my battery being more than 50%
Click to expand...
Click to collapse
I've tweaked for more performance right now, but you can use 11-05 to get old CPU freqs. Also, please help hunt down what is draining the battery, it's most likely too many held wakelocks, but it could be any number of things.
bihslk said:
So what is the latest and best working version of this rom?
Click to expand...
Click to collapse
It's literally in the first post.
bihslk said:
Rom is pretty OK but really annoying top speaker bug. Only lower one works.
Click to expand...
Click to collapse
That is already in the bug list. Please read the bug list before posting.
Update 2018-11-16
Some new developments are happening.
Oem binaries version 3 are out. This should give improved power management. The SODP team has also worked on getting audio handling during calls to work. A big thanks to oshmoun for his work on the audio manager. This change was introduced on the 11-15 build. The issue of no call audio when a bluetooth headset is connected is still present as of now.
Changed IRQ handling (PR by Angelo/"kholk"). This should give better battery life and maybe faster wakeup from deep sleep. But could also lead to instabilities and crashes. Send logs & pstore, see post #2. This change was introduced on the 11-15 build.
Testing kernel 4.9.137 i in progress (we are currently on .103). This means stability and security enhancements from upstream linux. Thanks to Nathan Chance who opened this pull request..
But some of those upstream changes might be incompatible with our Sony kernel, so we have to test that. Send logs & pstore, see post #2. This change was introduced in the 11-16 build. If the 11-15 and 11-16 builds are unstable, revert to an older one. But please be brave and run them for at least a day to get us logs of potential crashes.
---
optixperiaa said:
I am always confused about "flash latest stock ftf" part about roms as a newbie.. if we flash sony's ftf how can we flash rom ? isnt it overwrite ?
Click to expand...
Click to collapse
Your phone software is made up of many layers. The ROMs like omni or this AOSP-based one only modify your /system and /boot partitions.
But when you update your stock firmware via flashtool, you also update your phone modem firmware, your qnovo charging controller firmware, your lower-level bootloaders etc. That is why we instruct you to update to the latest stock firmware. You could theoretically skip flashing /system in flashtool(because it will get overwritten anyway, as you've already discovered) and directly flash a custom ROM afterwards.
When you're coming from omni, there is no need to flash stock firmware again in between, because your other partitions stay the same. Just a new /oem is needed.
viori said:
flash omni_kagura-2018-11-20_UNOFFICIAL_TESTBUILD-2
Click to expand...
Click to collapse
Again, please keep this thread about development for AOSP. The omni builds are not meant for you.
If you have trouble installing then simply don't use it.
DO NOT POST HERE FOR HELP OR YOU WILL BE REPORTED. Read everything before posting.​
If you have questions, ask them in this thread: AOSP 9.0 Pie builds for F8331/F8332​
The OP has requested that you do not post questions in this thread, please use the thread he states in the OP to do that.
If you have questions, ask them in this thread: AOSP 9.0 Pie builds for F8331/F8332
Click to expand...
Click to collapse
Thanks
Thread cleaned
General update
Newer builds will have selinux set to "enforcing". Most denials should have been fixed or are irrelevant. If you encounter any problems, selinux-related or anything else, please report them to the Sony bugtracker or - even better - submit a pull request to the selinux-policy repo.
Update 1: vendor blobs aren't binderized correctly atm, so no network. You can set selinux back to permissive to fix most issues atm.
The Wi-Fi hotspot has been fixed thanks to oshmoun. In newer builds, it should be using less battery.
Next thing we're going to tackle is deep sleep and battery drain. Big pain point and one of the last blockers, apart from the camera and bluetooth in-call audio.
You might have noticed that the omnirom device trees have been updated to 9.0. Nightly testing builds work fine, but they have the same issues as the AOSP-based ones.
Work is also under way to get a Pie-based TWRP recovery stable, with support for FDE encryption(this means that you will be able to back up your encrypted installations). Mounting /userdata works, but the builds are not ready for public release yet.
Update
New build up (2018-12-08)
Camera key works
Update to December security patch(12-05, r21)
Fingerprint should not crash device on enrollment any more
Allow setting lower minimum brightness
Double-tap-to-wake off by default(but can be enabled)
Plugging in charger with screen off should be fixed
Once again, I invite anyone who would like to help out or just learn a bit about building and tweaking to take a look at the sources posted here.
There will be a guide on how to build only the kernel and experiment with a custom boot.img shortly.
The build guide on sx.ix5.org for reproducing these AOSP builds should bring you up to speed, and if you need help building or just want to chat, the telegram group in post #1 is open to you.
local__hero said:
New build up (2018-12-08)
Camera key works
Update to December security patch(12-05, r21)
Fingerprint should not crash device on enrollment any more
Allow setting lower minimum brightness
Double-tap-to-wake off by default(but can be enabled)
Plugging in charger with screen off should be fixed
Once again, I invite anyone who would like to help out or just learn a bit about building and tweaking to take a look at the sources posted here.
There will be a guide on how to build only the kernel and experiment with a custom boot.img shortly.
The build guide on sx.ix5.org for reproducing these AOSP builds should bring you up to speed, and if you need help building or just want to chat, the telegram group in post #1 is open to you.
Click to expand...
Click to collapse
Great job.
I already built a custom Pie kernel about a week ago to gain better performance but the charging bug was driving me insane :crying:
I guess now's the time to go back to the mighty Pie and try building a nice and hopefully stable Marrow Kernel.
Cheers
Finally a new build is out!
I can't pass safety net on latest build.
Any ideas what should I use ?
Since modules for spoofing fingerprint simply don't work.
I tried universal safety net fix but with no avail.
V 12.15
Charging working fine. But i have problem with camera, photos are very dark.
Sometimes touch screen not working and i need to switch the screen and on again.
ov2rey said:
Sometimes touch screen not working and i need to switch the screen and on again.
Click to expand...
Click to collapse
Disable Dt2w
oem v4 is out
DahakePL said:
Disable Dt2w
Click to expand...
Click to collapse
Thank you It's work!
Layns said:
oem v4 is out
Click to expand...
Click to collapse
i am testing v4 on latest build aosp_f8331_2018-12-21-NIGHTLY-permissive.
Screen unable to display after update to oem v4
https://developer.sony.com/file/download/software-binaries-for-aosp-pie-android-9-0-kernel-4-9-tone/
ov2rey said:
Thank you It's work!
i am testing v4 on latest build aosp_f8331_2018-12-21-NIGHTLY-permissive.
Screen unable to display after update to oem v4
https://developer.sony.com/file/download/software-binaries-for-aosp-pie-android-9-0-kernel-4-9-tone/
Click to expand...
Click to collapse
I tried it works fine but the camera sucks and the sound is bad, the screen opening with double tap is running slow, the charge is a little quick

Bluetooth audio improvement

Hi,
i tried to contact the Lineage OS 15.1 (Oreo 8.1) oxygen authors to issue a patch in accordance with the great work of this threats author
https://forum.xda-developers.com/showpost.php?p=77673730&postcount=94
, but haven't gotten any response yet. As I am having severe issues with the bluetooth audio quality in a car install and removed the device for troubleshooting, which is why I am looking for a quick solution. Could anyone who has the means and knowledge provide me with the patched files for the mentioned rom or even a full patch for the system?
I guess others here would appreciate a patch also.
Somehow I can't add links or files, so please send me a personal message if you are able and willing to help, so I can transmit the files.
Help would be greatly appreciated. Thank you in advance.
Did you tried using viper4android app
funfly11 said:
Hi,
i tried to contact the Lineage OS 15.1 (Oreo 8.1) oxygen authors to issue a patch in accordance with the great work of this threats author
https://forum.xda-developers.com/showpost.php?p=77673730&postcount=94
, but haven't gotten any response yet. As I am having severe issues with the bluetooth audio quality in a car install and removed the device for troubleshooting, which is why I am looking for a quick solution. Could anyone who has the means and knowledge provide me with the patched files for the mentioned rom or even a full patch for the system?
I guess others here would appreciate a patch also.
Somehow I can't add links or files, so please send me a personal message if you are able and willing to help, so I can transmit the files.
Help would be greatly appreciated. Thank you in advance.
Click to expand...
Click to collapse
I better suggest you my friend to move to arrow os pie from Hard_Rock83 and install viper4android apps posted by me , also there is impulse files those I linked there you find the best sound for everything headset, handset and Bluetooth.. try and report back
As per I know nobody can really enhance or make any patch for Bluetooth audio.
Viper4android can provide you the best solution and you can even find gain option there so that you increase the volume of bluetooth and other devices..

[UNOFFICIAL][ROM]BETA LineageOS 18.1 for SM-T715 - June 18, 2023

LineageOS 18.1 UNOFFICIAL for 2015 Samsung Galaxy Tab S2 SM-T715 ONLY​Model: SM-T715 (LTE) - gts28ltexx - 8" screen, Exynos 5433 SoC, LTE
This is the ONLY model that the ROM will work on.
There is NO ROM for the T710, T810 or T815 in this thread. Questions about T710, T810 or T815 will be completely IGNORED.
For T710 please use the equivalent ROM at its separate XDA forum thread.
For T810 please use the equivalent ROM at its separate XDA forum thread.
You MUST READ posts 1-3 (about 10 minute read) before deciding to install this ROM. If you think this is an unreasonable request, then stop reading now and find another ROM. Thank you.
DISCLAIMER
I am not responsible for lost data, identity theft, lost money, security vulnerabilities, bricked devices or any other hardware or software malfunctions that comes as a result of flashing this ROM.
All involved in bringing this build to you are working voluntarily on it in very limited spare time, and their other life commitments have much higher priority. Don't expect a prompt, or even any, response to questions and bug reports.
Before attempting to install this ROM
1. Ask yourself: would bricking your device be a disaster for you? If yes, don't try this ROM! It can't be guaranteed stable and reliable enough to depend on for daily use.
2. BACKUP YOUR DATA AND EXISTING ROM. Be prepared for a complete restore if anything goes wrong.
3. RESEARCH adb, fastboot, Odin/heimdall, and TWRP and how to use them, if not already familiar with these.
What works
bluetooth
wifi
GPS
brightness
audio through loudspeaker
audio through headphone jack
audio over bluetooth
SELinux enforcing
DRM level 3 (SD definition)
deep sleep
RIL - mobile data and telephony/SMS/Cell Broadcast - some limitations for telephony audio options apply, see below
vibration and haptic feedback
hardware buttons and lighting
What doesn't work
fingerprint. As retiredtab wrote in post 1891 at
https://forum.xda-developers.com/t/...t810-t815-t815y.3879302/page-95#post-85533725
the team will not spend anymore time looking at fingerprint. If you need fingerprint to work, stay with stock Samsung ROM.
DRM level 1 (no HD definition). There's more detail in post 1891 above. I will not be trying to achieve level 1 for HD definition. If you need HD definition for your streaming media, stay with stock Samsung ROM.
If you charge the device while it's powered off and then want to power it on, you MUST wait at least 30 seconds AFTER disconnecting the charger cable before pressing the power button otherwise you might run into strange boot problems such as the touch screen not working. While recent builds solved the touchscreen issue, you still might see excessive battery drain until you perform another reboot.
For telephony audio, currently only the loudspeaker option is working. If you try to use/switch to bluetooth audio during a phone call, the audio stack will go wild and afterwards loudspeaker will stop working too until you perform a reboot.
Please note that for an incoming call, it might take a couple of seconds until both sides can hear each other.
I have invested a lot of time trying to troubleshoot the audio routing, and this is for sure a device-specific issue most likely due to the the old Samsung binaries so chances are almost zero to get that fixed.
Possibly other features that I haven't tested or do not use.
Source Code
See FAQ 1 for links in post #2.
Thanks
LineageOS team for the upstream source code.
@retiredtab, @ananjaser1211, @lpedia, @Yogi555 and @CuckooPenguin for spending nearing 1 month fixing the 2 most biggest bugs in 17.1 that plagued users for nearly 10 months: the wifi instability and random reboots. These are discussed in detail at
https://forum.xda-developers.com/t/...rs-running-any-version-of-android-10.4308193/
https://forum.xda-developers.com/t/...rs-running-any-version-of-android-10.4308203/
A special shout out to retiredtab for providing the T710 ROM and code here which is the base for this ROM. Also this ROM would not have been possible with all the help and mentoring he provided during the past 6 months of development. Also many thanks to lpedia and bluess57 for their outstanding hints and tips.
All past contributors of the exynos5433 code, especially ananjaser1211 for his major contributions and @ripee for working on prior gts2 builds until end of 2021.
@rINanDO for his lmkd spam fix in 18.1.
Alpha testers: simon-edwards for the many hours testing and helping troubleshooting RIL, SELinux policies and various gapps options; Don K and Sir Thopas for addional RIL model testing.
@bluess57 for his excellent code donations for the gts2 LTE models.
retiredtab and lpedia for providing the blueprint for this forum entry and the FAQ in post #2 and constantly improving it. This work is just a little contribution standing on strong shoulders of previous contributions.
Frequently Asked Questions. You MUST READ this before posting any questions. Thank you.
QuestionAnswerQ1. Can I build this ROM for myself? Where are the source and kernel source files?A1. Yes, you can. The source files are listed below.
Kernel
https://github.com/metterschlg/android_kernel_samsung_universal5433
Device Tree
https://github.com/metterschlg/android_device_samsung_gts2-common-selinux
https://github.com/metterschlg/android_device_samsung_gts28ltexx
Vendor
https://github.com/metterschlg/proprietary_vendor_samsung
In addition, there is a repo diff file for device-specific tweaks needed to work and a roomservice.xml (local manifest file) file so you can build this rom yourself. The other patch required for tcp/ip is at https://github.com/DerpFest-11/pack...mmit/22fd53a977eeaf4e36be7bf6358ecf2c2737fa5e
Build manifest can be found at
https://github.com/metterschlg/local_manifests/blob/lineage-18.1/gts28ltexx.xml
Build environment setup is docmented (as code) at
https://github.com/metterschlg/los-devel-scriptsQ2. Is this ROM suitable as a daily driver?A2. It might be, depending on your requirements. You would need to try it yourself, with your preferred apps, to see if suits your purposes. I've been using it myself since mid April 2022 with no major issues.Q3. What do I do if my app xyz doesn't work?A3. I can't help diagnose problems with random apps I know nothing about. If the app is critically important to you and it doesn't work on this ROM, go back to a ROM where it did work.Q4. Why is this ROM laggy and/or buggy?A4. The device will be noticeably slower if you're using any Gapps package. Consider going gapps-free. A lot of apps will work without Google's services, or there exist alternatives that will. Check out F-Droid, Aurora Store, NewPipe, etc.Q5. What TWRP should I use?A5. I use official TWRP 3.6.1_9. Get it from
https://twrp.me/samsung/samsunggalaxytabs280ltexx2015.htmlQ6. Why should I use this ROM?A6. You don't have to! If you don't like it, go back to your old ROM.Q7. Will you offer monthly updates with security patches?A7. I plan to do so. I will try to update the ROM with the monthly security patches after LineageOS has released them, free time permitting. Each monthly build will be quickly tested to make sure the ROM still works, before it's made available (which might in some cases delay the release).Q8. I'm a newbie. Can you provide step by step instructions?A8. We simply don't have the time to do this, but there are lots of tutorials, videos, etc online showing how to flash custom ROMs and how to deal with common problems. Newbie questions are also accepted in the XDA General Questions and Answers forum. Having said that, @pflyaz has kindly make a guide in post #37.Q9. Can I report a bug with respect to the ROM?A9. Yes, but you need to supply the following information. If you don't, I won't look at it.
Provide an adb logcat of the problem, and if possible describe how to reproduce it. Note that I can't help if it involves downloading any app I don't already use that requires payment or creating a userid/password.
To get a logcat, open a terminal window on your PC, connect your device to it via USB, and do this:
Bash:
# clear the logcat first
adb logcat -c
# start logcat trace
adb logcat > problem.txt
# reproduce problem
# wait until problem has occurred,
# then stop trace by hitting ctrl-c then zip the problem.txt file
# before uploading it.
Q10. How long will you build 18.1 for this device?A10. For now, 18.1 will be built for all of 2022. After that, we will make a decision depending on a number of factors.Q11. Do I need to erase everything and format my data before installing this ROM for the first time?A11. Under most circumstances, yes.
If you're coming from stock Samsung Android, or an earlier version of LineageOS, or a different custom ROM, you MUST 'clean flash': boot to TWRP recovery, wipe system, data, dalvik/art cache, and cache partitions, then Format Data, then install this ROM.
If you don't do this you're likely to run into problems, such as getting stuck at the boot animation for more than 5 minutes.Q12. What Gapps should I use?A12. Your choice! There are several well-known Gapps packages, such as NikGapps, BiTGapps, OpenGapps, and MindTheGapps. OpenGapps is being removed as per this post. Do your own research as to what is the most reliable gapps option for you.
I recommend installing the SMALLEST version of any of these, preferably with just the minimum Google services needed to access the Play Store and run apps that depend on Google services.
You could also consider Google alternatives, such as Aurora Store, which mirrors the Google Play Store apps but doesn't need any Google services itself. Many Play Store apps do not actually depend on Google services.
If you are going to install any Gapps package, follow the installation instructions given for that particular package.Q13. I'm having problems with Gapps. Can you tell me why it's not working?A13. I can't answer any questions about Gapps, because I don't use them. Ask your questions on the XDA thread for the Gapps package you're using.Q14. Why isn't my post answered?A14. There are several possible reasons: the question is answered in the FAQ (in which case it will be ignored completely); or it involves apps or operating systems that I don't use; or it's about Gapps, which I don't use; or I simply have not had time to answer any questions.Q15. What speed up/optimization tips do you suggest?A15. These steps can make a big difference to performance:
Turn off animations. Go to Settings > System > Developer options, scroll down to the Drawing section, and set Window, Transition and Animator scale all to "Animation off".
Don't install Gapps unless you depend on something that only Google is providing. Use Aurora Store to get your preferred Play Store apps - they will all be available on Aurora Store. You can choose to access this anonymously or use a Google account.
Don't run more than two apps at the same time. You can probably listen to music in the background and use a web browser at the same time.
Use a web browser with built-in adblock and privacy features, such as Brave.
Use NewPipe to watch your streaming content. It has built in adblock so you don't have to watch forced ads.
Look for apps that are open source, ad-free and lightweight.
Q16. Does this ROM support Magisk so I can root my device?A16. Magisk works with this ROM and I'm using it, but that could change with any revision and changes by Google. However I can't help with any related issues. Direct any questions about Magisk to the XDA Magisk forum.Q17. Will this ROM ever become official?A17. Never. Official maintainers have onerous responsibilities, and I know my device trees, code organization and git commits will NOT meet LineageOS standards. I'm not able or willing to take on the responsibilities and commit the extra time to supporting an official build.Q18. What is the difference between this ROM and others?A18. This ROM tries to be pure LineageOS with little or no modification. Other ROMs may come with a different UI, different bundled apps, etc.Q19. Will there be any major 18.1 code modifications in the future?A19. I don't anticipate any major modifications. There may be some slight tweaking to the SEpolicy, small bug fixes and minor code cleanup, but all the hard work - getting the ROM up and running, and fixing all the major bugs - has been done. This doesn't mean the code is perfect or well organized, but I won't be making any major changes.Q20. Why did you fork the trees?A20. I wanted my own private branch where I could make changes that would only affect my own personal builds.Q21. Can you build a variant of this device? For example, a S-pen version?A21. I cannot and will not try to build for a variant device if I don't physically have that device. I have to be able to boot and test it myself, and there's no guarantee that I can get those variant features working. So I will NEVER build T710, T810 and T815.Q22. Does this ROM have any wifi connection issues?A22. This ROM's wifi has been stable on the specified device ever since lpedia and retiredtab determined the root cause of the wifi problems back in July 2021 and re-installed the original S2 network 'blobs' with LOS 17.1.Q23. Is this ROM secure so I can do financial transactions?A23. Although Android monthly security patches do improve general security, this ROM's outdated kernel and old proprietary vendor blobs/drivers will NEVER get updates of any kind, and could have significant security holes.
In addition, although the ROM is SElinux enforcing, there's a good chance that the rules written (about 800+ lines of code) have some errors.
If the device is rooted, this would further weaken the security.
With this information, it's up to you to make an informed decision about whether you trust this ROM to be secure enough for your financial transactions.Q24. Okay, I understand the consequences and willing to take the risks outlined, now where can I find the BETA ROM?A24. Downloads are at
https://sourceforge.net/projects/los4sgt/files/los18.1/
Please note that there are two builds for every date. Start with the enforcing build, if you hit issues, flash the permissive boot image to determine if your issue is related to SELinux. If you have Magisk installed, you first need to patch the permissive boot image with the Magisk app before flashing.
If your initial enforcing build install does not have working RIL, you might need to fix SELinux labeling of your EFS partition. To do so, use ADB in root mode. Please note that ADB root needs to be enabled in the developer options of your device. Then use the following commands from a PC connected via ADB:
Bash:
adb root
adb shell
# Check if SELinux relabeling is required, do not modify anything
restorecon -R -v -n /efs
# If you see some "Relabeling..." output, run the real relabeling
restorecon -R -v /efs
Release notes
June 18, 2023 Release
June 2023 LineageOS & Android security fixes. >5500 files changed.
May 14, 2023 Release
May 2023 LineageOS & Android security fixes. >5600 files changed
April 23, 2023 Release
April 2023 LineageOS & Android security fixes. >4600 files changed.
March 26, 2023 Release
March 2023 LineageOS & Android security fixes. >27000 files changed.
February 18, 2023 Release
February 2023 LineageOS & Android security fixes. >21000 files changed.
January 22, 2023 Release
January 2023 LineageOS & Android security fixes. >4200 files changed.
December 17, 2022 Release
December 2022 LineageOS & Android security fixes. >3800 files changed.
November 13, 2022 Release.
November 2022 LineageOS & Android security fixes. >4000 files changed.
Kernel improvements by Ananjaser
Starting with these builds I will only publish the SELinux enforcing ROM. If you encounter issues that might be SELinux-related, please first flash the boot_permissive-<date>.img as boot image and re-try to help me identify if the issue is SELinux-related.
October 22, 2022 Release.
Initial public release. First 18.1 T715 ROM with working RIL, also first 18.1 T715 ROM with SELinux in Enforcing mode. T710/T715 common code based on retiredtab's work for T710 so all his latest changes apply as well.
Reserved #3
Reserved #4
Reserved #5
Congratulations on this release @metterschling and @retiredtab , great to see!
@metterschling If you don't mind a couple of comments about your scripts, you need not have created a patch for my script. You could have just forked mine and pushed your changes to it. No need to complicate things for novice builders. Secondly, I'm sure your gts28lte tree can be a source of inspiration for the other 3 variants so as to build a complete set. Thirdly, you may be able to let gts28wifi users flash your builds if you add gts28wifi as a TARGET_DEVICE, to make it easier to cover more users in the meantime. Fourthly, you clone so many repos when it could be cleaner to fork then substitute your forks in the roomservice. This could avoid potential repo syncing errors.
ripee said:
@metterschling If you don't mind a couple of comments about your scripts, you need not have created a patch for my script. You could have just forked mine and pushed your changes to it. No need to complicate things for novice builders. Secondly, I'm sure your gts28lte tree can be a source of inspiration for the other 3 variants so as to build a complete set. Thirdly, you may be able to let gts28wifi users flash your builds if you add gts28wifi as a TARGET_DEVICE, to make it easier to cover more users in the meantime. Fourthly, you clone so many repos when it could be cleaner to fork then substitute your forks in the roomservice. This could avoid potential repo syncing errors.
Click to expand...
Click to collapse
Thank you @ripee. Just to be sure: all you above comments are related to my build environment setup script here, correct?
I agree with regards to the patch, this is how I started and just wanted to document my steps as code. During my next free cycle, I'll be looking at reworking this.
Regarding 2) as mentioned in the opening post my work is already the result of synergies between code trees for the other devices, mainly based on retiredtab's trees, and we keep the common set wherever possible.
So there is no need for 3) as gts28wifi users can directly use the equivalent one linked on the top of post #1.
For 4) I'm open for suggestions which clones you are referring to. As an example, I don't want to fork the entire LineageOS tree just to apply the small NetworkStack patch.
metterschling said:
Thank you @ripee. Just to be sure: all you above comments are related to my build environment setup script here, correct?
I agree with regards to the patch, this is how I started and just wanted to document my steps as code. During my next free cycle, I'll be looking at reworking this.
Regarding 2) as mentioned in the opening post my work is already the result of synergies between code trees for the other devices, mainly based on retiredtab's trees, and we keep the common set wherever possible.
So there is no need for 3) as gts28wifi users can directly use the equivalent one linked on the top of post #1.
For 4) I'm open for suggestions which clones you are referring to. As an example, I don't want to fork the entire LineageOS tree just to apply the small NetworkStack patch.
Click to expand...
Click to collapse
@ripee I've pushed a new version of the build environment setup script, following your guidance. Please let me know if there are more areas of improvement, very much appreciated!
November build lineage-18.1-20221113-UNOFFICIAL-gts28ltexx.zip uploaded. Please see FAQ #24 for the download link.
November 13, 2022 release notes:
November 2022 LineageOS & Android security fixes. >4000 files changed.
Kernel improvements by Ananjaser
Starting with these builds I will only publish the SELinux enforcing ROM. If you encounter issues that might be SELinux-related, please first flash the boot_permissive-<date>.img as boot image and re-try to help me identify if the issue is SELinux-related.
Enjoy!
metterschling said:
Thank you @ripee. Just to be sure: all you above comments are related to my build environment setup script here, correct?
I agree with regards to the patch, this is how I started and just wanted to document my steps as code. During my next free cycle, I'll be looking at reworking this.
Regarding 2) as mentioned in the opening post my work is already the result of synergies between code trees for the other devices, mainly based on retiredtab's trees, and we keep the common set wherever possible.
So there is no need for 3) as gts28wifi users can directly use the equivalent one linked on the top of post #1.
For 4) I'm open for suggestions which clones you are referring to. As an example, I don't want to fork the entire LineageOS tree just to apply the small NetworkStack patch.
Click to expand...
Click to collapse
If gts28wifi users get an error that their device is not gts28ltexx, then yes it would be necessary to add it as a target device in the tree. Lineage uses the networkstack repo from google, which you can tell cuz they track the aosp remote, so in this case we have nothing to fork and substitute. Only a patch of google's own repo would be convenient.
Just to clarify, since there has been discussion about the WiFi version (t713), can this ROM be safely flashed on one?
Also I believe I have a t715Y... Would this t715 ROM work on it?
(I have three Tab S2 units -- two t713 models and a t715Y.)
Thanks
KeepingItCuttingEdge said:
Just to clarify, since there has been discussion about the WiFi version (t713), can this ROM be safely flashed on one?
Also I believe I have a t715Y... Would this t715 ROM work on it?
Click to expand...
Click to collapse
The T713 and T715 have completely different chipsets. T713 is msm8976 and T715 is exynos5433.
If your T715Y is known as "gts28ltexx" OR "gts28lte" as described in post #1, then you can flash this rom on it. You can download an utility called devcheck by flar2 to verify. Your device name will be shown in the system tab under device.
https://play.google.com/store/apps/details?id=flar2.devcheck
metterschling's code checks for gts28lte,gts28ltexx using this below
https://github.com/metterschlg/andr...s28ltexx/blob/lineage-18.1/BoardConfig.mk#L17
KeepingItCuttingEdge said:
Also I believe I have a t715Y... Would this t715 ROM work on it?
Click to expand...
Click to collapse
Most likely, ROMs for the T715 work on the T715Y according to some XDA posts. Like this one. I don't own a T715Y, so can't test myself.
December build lineage-18.1-20221217-UNOFFICIAL-gts28ltexx.zip uploaded. Please see FAQ #24 for the download link.
December 17, 2022 release notes:
December 2022 LineageOS & Android security fixes. >3800 files changed.
If you are coming from a previous version of these builds, you can dirty flash, otherwise please perform a factory reset and format data before installing this ROM.
Enjoy
Hi friends, after loading from TWRP twrp-3.7.0_9-0-gts28ltexx.img.tar on my SM T710, my tab gets stuck on booting with lineageos graphics. I made the backup with TWRP if I upload the files can I repair the tab as before?
mikelosat said:
Hi friends, after loading from TWRP twrp-3.7.0_9-0-gts28ltexx.img.tar on my SM T710, my tab gets stuck on booting with lineageos graphics. I made the backup with TWRP if I upload the files can I repair the tab as before?
Click to expand...
Click to collapse
If I understand correctly, you picked the gts28ltexx version which is for the SM-T715. If your device is the SM-T710 (gts28wifi) I'd strongly recommend to use the ROM and matching TWRP linked in this thread.
If your device is SM-T715, please see FAQ #5 in post #2 of this thread. I use the downlevel TWRP because newer ones did not work for me.
I use a SAMSUNG SM-T715 device just as described:
Model: SM-T715 (LTE) - gts28ltexx - 8" screen, Exynos 5433 SoC, LTE.
To be able to install the ROM I used "TWRP twrp-3.7.0_9-0-gts28ltexx.img.tar"
After several attempts I could neither restore the BACKUP nor start the operating system. I had to do a complete WIPE and at that point lineageos advanced, now I'm having problems, I don't have the gapps I downloaded version 11 for ARM but despite having enough space it gives me an error "70" not enough space. I have no google services and no PLAYSTORE, I am in a critical situation, how can I install the google PlayStore? I can't even add gmail account from settings, it's a disaster.
metterschling said:
If I understand correctly, you picked the gts28ltexx version which is for the SM-T715. If your device is the SM-T710 (gts28wifi) I'd strongly recommend to use the ROM and matching TWRP linked in this thread.
If your device is SM-T715, please see FAQ #5 in post #2 of this thread. I use the downlevel TWRP because newer ones did not work for me.
Click to expand...
Click to collapse
Finally I come to the conclusion, after fully formatting my SAMSUNG SM T715 the ROM started up, the problem was the wrong recovery, using the version indicated in the guide above everything started up correctly.
Unfortunately this ROM is full of bugs and its use is useless, below I will list all the problems it causes during use:
1. 4g calls don't work, during the call you can't hear anything either incoming or outgoing.
2. Bluetooth only works with music while in call it remains mute.
3. the only way to call is to keep the speakerphone open otherwise the call will be silent.
4. Whatsapp is impossible to use and only allows you to use it in beta.
5. Smart Switch as for whatsapp does not work with custom ROMs
6. Does not sync contacts even though sync has started.
It's really a shame after all these hours to find that you've only wasted so much time.
Maybe I've done something wrong, I don't rule it out, maybe someone will be able to give me some advice.

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