Hi Everyone

I am new to this forum and sincerely apologise in advance if my post is in the wrong thread.
I'm hoping that by posting in "HELP" it will convey my urgency..

My problem
I bought a new Samsung Galaxy Tab A in Duhok, Kurdistan Region of Iraq. (Model SM-T550 - wifi only, no sim slot)
The Tab is for my wife, who speaks Thai and very limited English... (Yeah I know I should have taught her more English but that's a new thread altogether...lol)

I'm trying to find Firmware that includes the THAI language UI but in the last 6 days I have only run into other countries' firmware options...

I have contacted Samsung Customer Support and also went into totally ridiculous online chats with their support agents more than once... It was like that movie where the guy dies and starts all over again..and again...and again...

My VERY limited technical skills notwithstanding, I am hoping anyone here can help me get a THAI UI option for my wife...and thereby improve my sex life (The last is probably wishful thinking...lol)

Thanking you for any advice or help offered.

Best regards,
Vincent