_Ronin_

i sent you a link... give that a try

I know im massively necroing, but what OP described is exactly my problem. So would you mind providing me a solution as well please?

Hei!

I decided to post, and ask for help, since browsing through few 10 pages and searching for answers didn't work.

Basically my f900bt acts like this:
When turned on buttons flash with color for 3 seconds, screen doesnt turn on, and a cd is spinning, basically looping around.

I can not access test mode nor service mode. there were few tries i got to blue screen saying "please push reset key again", but that screen insta dissapeared, and the button light up and cd spinning loop starts again.

But yea, test mode won't start. seems its just trapped in that cd spinning button flashing loop.

Does not want to load anything from Sd card either.

So I was wondering is there any way to force stop it with spinning CD, or any way of completely resetting device or something like that.

Screen shouldn't be broken since, there is a 1 sec splash screen every now and then when i start it + that occasional blue screen saying "please push reset key again".

If it would help I can upload a video, how it looks.

And hoping for some help.

Cheers!