Rom is working great! thanks for your hard work! SM-T550 is getting some extra life!
Stable and fast!
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Which version did you install?
e-1.20-r-20240321-UNOFFICIAL-gt510lte.zip is the one I used.
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Yes, this is the ROM that works
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Thanks once again! Would like to build my own e-os one day, just little busy with other projects at the moment.
Enjoying some of andys GSI builds also.
Well, here you go if you want to build yourself:
Thank you was reading earlier.
So am I using this right? It looks like that list has no e/os/ ROM matching SM-T510, or gta3xlwifi. Is this true?
No. There is no ROM.
You can try this ROM if you want:
https://xdaforums.com/t/10-0-unofficial-gsi-resurrection-remix-v8-6-5-sm-t510-gta3xlwifi.4215343/
There are some sources but they might not work…
https://github.com/mrki1111/roomservice/blob/main/roomservice.xml
https://github.com/exynos5420/android_device_samsung_gta3xlwifi
Hello, my teacher ronnz98 ,I am lost among many suggestions. Please, I want to help my sister because many of apps are no longer support Android 5 I need to install the Android 10 system on a tab sm-t555 please, send to here the links of rom and the recovery to install them on the PC , have a good day 
e-1.20-r-20240321-UNOFFICIAL-gt510lte.zip should be the correct ROM for you.
Since I do not own the tablet I do not know the installation procedure but maybe @bobcanberra can help you with that
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Follow this guide but instead of installing SU, install Rons custom image. Once twrp is installed its very straight forward to install the custom rom.
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@ronnz98 @bobcanberra thank you guys so much, but He explained the 7.1.1 system, and I am looking for Android 10 because I found 11 and 12 alpha, I think, but there may be errors, instability, and heaviness on the device. But if you do not have information, there is no problem. Thank you for the response and help
First you need to upgrade your Samsung firmware to latest T555XXU1CRG1 based on android 7
https://samfw.com/firmware/SM-T555
Then install twrp_3.1.1-1
https://androidfilehost.com/?fid=673791459329063717
Then /e/OS-R based on Android 11
e-1.20-r-20240321-UNOFFICIAL-gt510lte.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-1.20-r-20240321-UNOFFICIAL-gt510lte.zip/download
or /e/OS-S based on Android 12 if available and working. (Unofficial LineageOS 20 based on Android 13 exist)
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e-1.20-r-20240321-UNOFFICIAL-gt510lte.zip is Android 11 based…
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I’ll do what you said thank you again for your helping 
Yes Im running this image much fast then android 7/8 on the samsung.
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@bobcanberra Are you talking to me sir ?
@piero My teacher, I tried installing the system from the first link successfully, but the device failed to boot after installing the WTRP … I could not open the recovery mode… I could not even open the device… except after pressing the home + volume up + volume down + power button together for 15 seconds or more… I installed WTRP From the internet and the version was 1.0.2 I think so, I will check…but after doing all the steps, the upgrade from the third link failed. Are you sure that the system is compatible with it? I used the basic system that has the Swiss flag on it because its history is more recent than the rest. Do you think the problem is here?
HI,
I’m trying to install this rom on my T555.
after a few hours of research I managed to find a TWRP updated enough to make flashing work.
(I had to remove the assertions to flash the image correctly because TWRP couldn’t find the model name correctly…)
the problem is that it stays on the initial loading screen (the one with the “e” and the ball going up and down) and doesn’t move from there.
after a few minutes it returns to TWRP.
What could it be?
I’ll answer myself,
For sm-T555 ( gt510lte )
the working TWRP version is 3.1.0-1, found here: https://xdaforums.com/t/recovery-twrp-3-1-0-1-galaxy-tab-a-sm-t350-355-357-550-555-sm-p350-355-550-555.3426560/
the rom will not install directly because TWRP does not correctly identify the device name, so you need to:
- extract the ROM zip
- edit the META-INF\com\google\android\updater-script file by removing the line with the asserts on the device name (it should be the first)
- repackage the zip
at this point, format and wipe from TWRP and then install the previously “patched” ZIP.
Magisk-v27.0 works for root
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