yeah i used ELM327 - forscan really good- u can switch off/on rear wiper function on reverse - annoying though lol
How / what you linking to ..you get better functions on a pc/laptop - never tried the lite on a phone...
Also when you first link bluetooth - i had 2 errors - one no connection - just keep trying it will eventually appear - i can also say will not work with iphone bluetooth...well let me know ifit does none of mine did