[ROM][7.1.2][UNOFFICIAL] LineageOS 14.1 - SM-T550/SM-T555 - Samsung Galaxy Tab A series ROMs, Kernels, Recover

LineageOS is a free, community built, aftermarket firmware distribution of Android 7.1.2 (Nougat), which is designed to increase performance and reliability over stock Android for your device.
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Code:
#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.
*
*/
LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. You will need to provide your own Google Applications package (gapps). LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.
This thread is for Official LineageOS 14.1 builds for SM-T550/SM-T555. The following will not be supported here:
Custom kernels
Mods
Xposed
I don't support Xposed and any logcat which includes a Xposed module will be ignored. You're kindly invited to not report bugs if you:
Flashed a custom kernel
Installed or did mods from any source other then this thread
Modified system files
First time flashing LineageOS 14.1 on your device, or coming from another ROM?
Download the zip(s)
Install a compatible Recovery (If you installed twrp early on you may need to reinstall it due to the device name changing)
Wipe data/factory reset
Flash LineageOS
Install the Google Apps addon package (Optional)
Reboot
SM-T550/SM-T555 Downloads
Google Apps:
http://opengapps.org/
Kernel
https://github.com/Galaxy-MSM8916/android_kernel_samsung_msm8916
Device Tree
https://github.com/Galaxy-MSM8916/android_device_samsung_gt510wifi
Aytex, who made all of the banners on this post.
Galaxy-MSM8916 Dev team​

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This build is designed for the Wifi-only variant (SM-T550) but it will flash and boot on the LTE variant (SM-T555), your tablet will act like a wifi only tablet so you will not have calling, texting, mobile data. In the future, I may make a SM-T555 build that has working telephony but probably not due to me not having one.
What's working:
Wifi
Bluetooth
Sensors
Video
Offline charging
Hardware buttons
What's broken:
GPS is flaky
Camera
Audio
Changelog:
4/18/18
Initial release

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For some reason it's not booting on my device if I take the older version from you Android host profile it boots and only audio thorugh the devices speaker isn't working

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@Deadman9365 Hi! Could you tell me which TWRP do you use? I found on the web only an UNOFFICIAL one which works only on MM... Could you help me, please? I would like to try this ROM

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I have the same problem as user nils_92.
The old "nightly" version (lineage-14.1-20170619-NIGHTLY-gt510wifi) boots, but the new one (Sean_lineage-14.1-20180418-UNOFFICIAL-gt510wifi) does not. Here the device restarts again and again before it has been completely loaded for the first time. Tested with "TWRP-3.1.x-omni-7.1_j16_20170609_gt510wifi" and "TWRP-3.2.1.1-lineage-15.1_j2_20180418_gt510wifi" as recovery

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I also tested the recoverys, the flashing of other custom roms for the SM-T550 works fine. So here you can rule out the error. What I haven't tried yet was to leave the device alone and see if it might catch itself again and then boot into the operating system at some point.
I can confirm for the nightly-version that the camera and the sound do not work.
Looking forward to testing the final version.

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Is work still being done on this rom? I checked the github but i dont see any recent commits

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Title says lineage 14.1 but github link are stating 15.1?
I am looking forward to flashing the next release and getting some more juice out of this tablet

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Can I flash it on SM-P550?
I have T550 before; i just trade off for S pen.

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New version not booting.

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I have tablet (Samsung Galaxy Tab A 9.7) SM-T550
I do install TWRP 3.1.0.1 with ROM LineageOS 14.1.
1) Use to Wipe Factor Reset
2) Use to install Rom
3) Use to install GApps
4) Reboot
But, its not working (When i start "reboot") > "SAMSUNG GALAXY TAB A 9.7" after "LINEAGEOS" cant open launhcer, its alone off tablet and on again...

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Thank you developer and thank you all for not responding me.
Finally I have bricked my Tab, I'm very thankful to you guys.

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samymarboy said:
Thank you developer and thank you all for not responding me.
Finally I have bricked my Tab, I'm very thankful to you guys.
Click to expand...
Click to collapse
First sentence says
* We are not responsible for bricked devices, dead SD cards,
Click to expand...
Click to collapse
so no need to thank anyone also it's been mentioned multiple times that there seems to be an issue and that it doesn't boot just get over it and flash stock or any other custom Rom for this device.
Not to mention that you seem to have a different device after all...

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nils_92 said:
First sentence says so no need to thank anyone also it's been mentioned multiple times that there seems to be an issue and that it doesn't boot just get over it and flash stock or any other custom Rom for this device.
Not to mention that you seem to have a different device after all...
Click to expand...
Click to collapse
Where was you when I asked a question before flashing ?
Why your ramping now? When I didn't want a reply from you ?

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samymarboy said:
Where was you when I asked a question before flashing ?
Why your ramping now? When I didn't want a reply from you ?
Click to expand...
Click to collapse
Don't complain if you don't want a reply read the description and don't flash on an unsupported device and all of you issues are solved! Good luck for the future you'll need it

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I'm using SM-T550 with TWRP
It doesn't working launcher it's alone off and on again.. please help me?? I like lineageaos

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Hi @deadman96385 nice to See you Continue working on this tab?. Still got my sm-t555 running so i hope there will be a release for lte Version. Tell me if
i can Test for you again

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I'm working in order to keep this device alive, too.
Oreo works and the camera is working in my testbuilds, except for some grainy previews in the camera app.
I'll release a build when the speakers are working. Headphones are working already.
Stay tuned

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Audio is working now. Feel free to use my vendor & device tree here @deadman96385. There are still some camera related issues, for instance the bad preview in the stock camera app. Using a different camera app solved this issue for me. Since deadman already supports Lineage OS, I'll build & support AICP. Android Oreo works on the tablet, I hope deadman will switch to the newest version of android soon. If there's some time in the next month I'll try to fix the remaining issues (the camera and SELinux permissive). Maybe I have time to build a SM-T555 version, too. But I don't own this type of tablet, so I would definitely need some testers.

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virsys said:
Audio is working now. Feel free to use my vendor & device tree here @deadman96385. There are still some camera related issues, for instance the bad preview in the stock camera app. Using a different camera app solved this issue for me. Since deadman already supports Lineage OS, I'll build & support AICP. Android Oreo works on the tablet, I hope deadman will switch to the newest version of android soon. If there's some time in the next month I'll try to fix the remaining issues (the camera and SELinux permissive). Maybe I have time to build a SM-T555 version, too. But I don't own this type of tablet, so I would definitely need some testers.
Click to expand...
Click to collapse
Nice work, I've been busy with other devices. But more then willing to work with you on the camera. I'll get your changes merged into the primary trees. Let me know via PM your email, hangouts, telegram username or whatever so we can have a chat.