ndstt is killin me. can anyone help?!

My friend got me the ndstt for Xmas, turned me on to this site, showed me how to use everything and I was in DS bliss. Then all of a sudden, my DS wouldn't boot up the card. It was working fine for 2 days then the following scenarios began occurring: 1. Initial top screen "Nintendo DS" & bottom screen "Warning - Health & Safety" displays show, but then both screens go to white and nothing more happens
2. Initial top screen "Nintendo DS" & bottom screen "Warning - Health & Safety" displays show, but then top screen goes black and bottom screen goes to white and nothing more happens
3. Initial top screen "Nintendo DS" & bottom screen "Warning - Health & Safety" displays show, and then top screen shows "Loading" icon but then freezes and goes no further
4. Bottom screen shows "Warning - Health & Safety", but "greyed out"/dim, and goes no further. Top screen displays nothing at all *** this is the most common occurrence**When no Micro SD card is inserted is says "no card?" so the TT card seems to be ok I assume... I like to consider myself to be fairly knowledgeable when it comes to tech, and have tried the following:
I have formatted my 2GB SanDisk card twice and installed the firmware correctly each time with the same results,
I have taken the 1GB Sandisk card from my cell phone, formatted it, and installed everything and again- same result.HOWEVER-- If I have the patience to restart my DS about 70 or 80 times, it will eventually boot out of pure luck... then I don't want to turn it off! lol.Can ANYONE please shed some light on this for me?! I want so badly to enjoy this more, but it's becoming more of a hassle than anything.Thanks muchly!!

Hmm, I used to get that greyed out health warning with my DSTT I used to have too, but a simple format fixed that. Maybe a fake? Or try maybe another MicroSD?

Thanx for the reply, but I have already tried the 2 Micro SD's that I own, the 2GB SanDisk that I got with the DSTT, and my 1GB SanDisk from my phone.. both with the same results. The only option I would assume is the DSTT is a fake?? But it was working fine for 2 days before it began freaking out. And again, if I turn it on and off about (literally) 70 times or so, one of those times it actually boots up. Wouldn't the fake fry my SD card too(as I've read in other posts)? I put the 1GB back in my phone and it's fine..I hope somone knows why this is happening and can help. Thanks!

If you have used 1.16 firmware and its a fake it might have fried Dstt buyt try 1.15
it dosent have fake killer in it.
BILL

make sure the sd card is in fully????i meen fully.

Yes, generally fakes tend to work for a short period before busting up. Maybe try downgrading since DSTT warned their new firmware would brick or stop working on fakes.