SuperR4i stopped working completely all of the sudden - help!

I was playing Grand Theft Auto Chinatown Wars (GTACW) on my DSi when the game froze. I turned the DSi off to reboot it, but when the DSi menu came on, the R4 icon was not available to be selected; so, I rebooted the DSi again and still R4 icon was not displayed in the menu. In fact, I even formatted the DSi to see if it will fix it, but it didn't; so, I formatted the MicroSD and reloaded all the required programs to make it run - still no R4 icon on the menu... What could have made this happen? Perhaps the R4 card got fried somehow, is this possible? I know for sure that my DSi is not the v1.4, and it was working perfectly until GTACW froze in the middle of the game....

Background:
-Purchased the Super R4i and MicroSD cards from dealextreme.com
-Had the most current kernel loaded from www.super4i.com, which is v1.20.
-Using an 8 gig MicroSD card by Scandisk
-Had about over 50 games saved in the MicroSD card
-Have been using both cards for about a week or so.

Mind you, I just discovered this "romulation-thing" not too long ago... still very new at this.

Help!
iMDSi

 

Could be a contact problem. Try slipping some paper in the slot to push the R4's connectors closer to the DSi's.

 

Tried this technique, but no cigar... Aaah!

Might just have to pick up a new flash card...

What's the most reliable flash card available? Are they all pretty much comparable of each other?

 

maybe your card is bricked
buy a new one like ezflash vi or acecard 2i