Hello @digiajay
ok, understood.
Well, you cannot set a different EOL character and therefore you cannot use UART block read line.
However you can use block count of available and read 1 bytes etc. to read chars sent from your device. As long as the char received is not your EOL char, append them into a buffer. And when you receive your EOL char do something with the chars accumulated in the buffer, then clear the buffer and start over.
Thanks
Felix