[SM-T550][LineageOS][Unofficial][Android Pie] Galaxy Tab A 9.7

[virsys]

Lineage OS 16.0 for the SM-T550 is here!

This is an early stage alpha build; not all features are working well at the moment.

#include <std_disclaimer.h>

/*
 * Your warranty is now void.
 *
 * We are not responsible for bricked devices, dead SD cards,
 * thermonuclear war or you getting fired because the alarm app failed. Please
 * do some research if you have any concerns about features included in this ROM
 * before flashing it! YOU are choosing to make these modifications, and if
 * you point the finger at us for messing up your device, we will laugh at you. Hard & a lot.
 *
 */

In the beginning I would like to thank:
Lineage OS team,
Contributors:
deadman96385
MSM8916 team
elginsk8r

Instructions
It is STRONGLY recommended to fully wipe your device before flashing and please avoid restoring system apps and system data with Titanium Backup as this can cause stability issues that are very hard to debug.
If you believe you know what you're doing - then fine, go ahead, but please don't complain if you experience any strange behavior.
How to flash:
(Again: Don't do it if you don't know it!)

1. Download the ROM and GApps and transfer them to your device.
2. Boot to recovery (TWRP recommended).
3. Wipe the System, Cache, Data and ART/Dalvik cache.
4. Flash the ROM Zipfile.
5. Flash the GApps (optional, needed for e.g. Google Playstore to work).
6. Flash the root solution of your choice (optional).
7. Reboot your device.

Reporting bugs:

• Grab a logcat right after the problem has occurred. (Please include at least a few pages of the log, not just the last few lines, unless you know what you're doing.)
• If it is a random reboot, grab /sys/fs/pstore/console-ramoops and /sys/fs/pstore/dmesg-ramoops-0. (Do not bother getting a logcat unless you can get it just before the reboot. A logcat after a reboot is useless)

Remember to provide as much info as possible. The more info you provide, the more likely that the bug will be solved. Please also do not report known issues. Any bug not reported in the bug report format below may be ignored.

What is your--
LineageOS version:
LineageOS Download url:
Gapps version:
 
Did you--
wipe:
 restore with titanium backup:
reboot after having the issue:
 
Are you using--
a task killer:
a non-stock kernel:
other modifications:
 
Provide any additional information (observations/frequency of problem/last version it worked on/etc) as needed:

Issues
- SELinux permissive
- encryption
- audio through speakers is broken, headsets and bluetooth audio works
Download link: https://www.androidfilehost.com/?w=files&flid=284367

XDA:DevDB Information
Lineage OS for the SM-T550, ROM for the Samsung Galaxy Tab A series

Contributors
virsys, @deadman96385, @Galaxy-MSM8916 team, @elginsk8r worked on the device trees
Source Code: https://github.com/Galaxy-MSM8916

ROM OS Version: 9.x Pie
ROM Kernel: Linux 4.x
Based On: LineageOS

Version Information
Status: Beta

Created 2018-11-06
Last Updated 2018-11-16

 

[TheMadScientist]

First....
I will have to give this a try
Thank you for your contribution good sir

 

[Kawakigachi]

My model: SM-T550

Thank you for downloading! I am going to test about LineageOS 16, if I have problem? I will talk with you. ?

Well, I like new ROM Pie.

---------- Post added at 02:01 AM ---------- Previous post was at 01:27 AM ----------

I have one problem. Please read here:

I did make to flash ROM and GApps, but... Error

Checking for MD5 file...
Skipping MD5 check: no MD5 file found
Warming: No file_contexts
E3004: This package is for device: gt510wifi,gt510wifixx,SM-T550; this device is.
E: unknow command [log]
E: Error executing updater binary in zip '/external_sd/SM-T550/lineage-16.0-20181106-UNOFFICIAL-gt510wifi.zip'
Error flashing zip '/external_sd/SM-T550/lineage-16.0-20181106-UNOFFICIAL-gt510wifi.zip'
Updating partition details....
.... Done

How do I do? I'm waiting your answer! Thanks for test!

 

[TheMadScientist]

Thank you for downloading! I am going to test about LineageOS 16, if I have problem? I will talk with you.

Well, I like new ROM Pie.

---------- Post added at 02:01 AM ---------- Previous post was at 01:27 AM ----------

I have one problem. Please read here:

I did make to flash ROM and GApps, but... Error

Checking for MD5 file...
Skipping MD5 check: no MD5 file found
Warming: No file_contexts
E3004: This package is for device: gt510wifi,gt510wifixx,SM-T550; this device is.
E: unknow command [log]
E: Error executing updater binary in zip '/external_sd/SM-T550/lineage-16.0-20181106-UNOFFICIAL-gt510wifi.zip'
Error flashing zip '/external_sd/SM-T550/lineage-16.0-20181106-UNOFFICIAL-gt510wifi.zip'
Updating partition details....
.... Done

How do I do? I'm waiting your answer! Thanks for test!

I can say it possibly a bad download or something on your end I flashed this last night with very few issues I have not used LOS in a long time but I was impressed

 

[DJCodeBlue]

For some odd reason it's not working for me. At first it gave me Error 7 code telling me that my device isn't a T550. Then I manually removed the "assert" check lines from the ZIP file to force the install without a device check. It installed. But I can't boot into the OS. It just kicks me back to TWRP every time.

Never mind, after trying once more, it finally worked.

 

[TheMadScientist]

For some odd reason it's not working for me. At first it gave me Error 7 code telling me that my device isn't a T550. Then I manually removed the "assert" check lines from the ZIP file to force the install without a device check. It installed. But I can't boot into the OS. It just kicks me back to TWRP every time.

Never mind, after trying once more, it finally worked.

Hey does this lag like crazy for you
even setup took me forever to get passed I normally let a new flash sit around for about a hour to the the system calm down still real laggish

 

[DJCodeBlue]

Hey does this lag like crazy for you
even setup took me forever to get passed I normally let a new flash sit around for about a hour to the the system calm down still real laggish

It wasn't that bad actually, it seemed to settle in for me. But I switched back to an Oreo rom for the time being for the bugs to get ironed out. Now I'm dealing with a super sluggish ROM lol. Do you have any recommendations for a good Oreo debloated ROM that performs great on the T550?

 

[TheMadScientist]

It wasn't that bad actually, it seemed to settle in for me. But I switched back to an Oreo rom for the time being for the bugs to get ironed out. Now I'm dealing with a super sluggish ROM lol. Do you have any recommendations for a good Oreo debloated ROM that performs great on the T550?

Not oreo im trying to find anything that dont lag now
I ended flashing stock nougat and rooting it...
Been working on that....
I got so used to my s8 This tablet seems kinda slow lol I tried another rom I think that jazz rom but about the same lag and I couldnt remove home screen icons without uninstalling them the little popup menu wouldnt work

---------- Post added at 07:14 AM ---------- Previous post was at 07:13 AM ----------

I still have expectations for this old tablet without any doubts there are a few of us out here with the 550 so we can band together and get something going I just got mine so Im stuck with the device for a while

 

[virsys]

Switched from a S8 to this tablet, that's real fortitude .. May I ask why you did this? The tablet is already antique. This is called a feature for slowing movement. Audio is working now, I will upload a new build tomorrow. I was able to install gapps without any problem and I don't feel like the device is "laggy as hell". Make sure to select Android 9 and ARM at opengapps.org, I choose always pico there and have no issues.

 

[Kawakigachi]

Switched from a S8 to this tablet, that's real fortitude .. May I ask why you did this? The tablet is already antique. This is called a feature for slowing movement. Audio is working now, I will upload a new build tomorrow. I was able to install gapps without any problem and I don't feel like the device is "laggy as hell". Make sure to select Android 9 and ARM at opengapps.org, I choose always pico there and have no issues.

I have one problem. Please read here:

I did make to flash ROM and GApps, but... Error

Checking for MD5 file...
Skipping MD5 check: no MD5 file found
Warming: No file_contexts
E3004: This package is for device: gt510wifi,gt510wifixx,SM-T550; this device is.
E: unknow command [log]
E: Error executing updater binary in zip '/external_sd/SM-T550/lineage-16.0-20181106-UNOFFICIAL-gt510wifi.zip'
Error flashing zip '/external_sd/SM-T550/lineage-16.0-20181106-UNOFFICIAL-gt510wifi.zip'
Updating partition details....
.... Done

How do I do? I'm waiting your answer! Thanks for test!

 

[virsys]

E3004: This package is for device: gt510wifi,gt510wifixx,SM-T550; this device is.

Sometimes that issue is caused by TWRP. It means that TWRP fails to get the device model, which is required for new install scripts. Consider updating TWRP.

 

[Kawakigachi]

Nice! Good News! LineageOS 16

Sometimes that issue is caused by TWRP. It means that TWRP fails to get the device model, which is required for new install scripts. Consider updating TWRP.

Thanks for help us! Now, my tablet works. Ready, I test all in my tablet. Wow! It's very great apps or boot, all.... I really love in your new ROM LineageOS 16. If you tell me about the Audio doesn't working"? No problem.... I am using "headsets and bluetooth audio works", its better . ????

Thank you for great ROM LineageOS 16. I give you "Rating: 100% or 5 Star" I'm waiting in your answer!

 

[dfg30988]

Sm-T555 please

Switched from a S8 to this tablet, that's real fortitude .. May I ask why you did this? The tablet is already antique. This is called a feature for slowing movement. Audio is working now, I will upload a new build tomorrow. I was able to install gapps without any problem and I don't feel like the device is "laggy as hell". Make sure to select Android 9 and ARM at opengapps.org, I choose always pico there and have no issues.

Please make build for T555 (I tried to edit it, but then the animation doesn’t start up )
Put your aicp 13.1, which you did not even publish here, but there are two errors: the camera does not work, and there is no sound except vibro

 

[virsys]

Please make build for T555 (I tried to edit it, but then the animation doesn’t start up )
Put your aicp 13.1, which you did not even publish here, but there are two errors: the camera does not work, and there is no sound except vibro

I don't even get why you are trying to point the finger at me because of this. Trying to edit compiled builds is very dumb. Go ahead and compile it from scratch. I don't own a SM-T555 -> I can't test my builds properly. The result is a half-broken always-alpha build like the one on my afh account. That's the reason why there is no thread. Feel free to donate me that tablet, maybe I find some time to build it then for you.

I've updated the SM-T550 build now btw, audio is working now. I've tested the gapps-setup, too. It took me 30 seconds to get through. The device was fully wiped, maybe that's the reason for the speed..

 

[crazyfuffi]

Everything I need works fine

I just started thinking about using my old Samsung Tablet again as a remote.

When I saw that there is a LineageOS build available I just installed it.

Everything I need to use my tablet as a remote works perfectly fine and way better and faster than with the crappy touchwiz on our device.
Installation was done in 15 minutes or even less.


Thank you very much for your efforts!

 

[layman22]

Waiting for the stable version for this...
Thanks Virsys to keep alive this fossile

 

[virsys]

Waiting for the stable version for this...
Thanks Virsys to keep alive this fossile

Good morning layman,
the version is quite stable actually. The only things missing are SELinux and the encryption/decryption of the internal storage does not work. May I ask you for the build number of the original operating system made by Samsung? These builds are for the SM-T550/gt510wifi/Samsung Galaxy Tab A 9.7 WiFi only. Have you enabled OEM unlocking in the developer options if there is this option?

 

[layman22]

Good morning layman,
the version is quite stable actually. The only things missing are SELinux and the encryption/decryption of the internal storage does not work. May I ask you for the build number of the original operating system made by Samsung? These builds are for the SM-T550/gt510wifi/Samsung Galaxy Tab A 9.7 WiFi only. Have you enabled OEM unlocking in the developer options if there is this option?

Dear Virsys, now I'm using your Oreo AICP build, so I can't tell you the original Samsung os's build number unfortunately...
But it was crap with full of needless ****s :laugh:
Than now I'll test this Pie build soon!
Thanks for your reply and have a nice day!

 

[DazzaHoy]

My model: SM-T550

Just tried to flash and when it starts i get
Android System
There,s an internal problem with your device . Contact your manufacture for details.

When i start to setup if i skip wifi setup all goes fine but if i sign into wifi i get setup has stopped , other than that all else works great.

 

[virsys]

It's still an alpha version and it will stay alpha until LineageOS 16.0 is officially released. To minimize the bugs avoid dirty flashing and restoring apps with titanium backup. Use ARM Pie gapps from opengapps.org, I recommend using nano or pico.