r4i sdhc error

i have a 8gb r4i sdhc with the latest 1.50b firmware from the vendors website. my problem is when i try to start a rom i get the error: error81 error83 sd disk fragmented reformat etc. i tried the panasonic tool several times with no success, still get the same error when i copy over the firmware and roms.

also tried older firmware 1.473ds . still the same.

thanks for any help
Post Merge: [time]1323804371[/time]
the r4i i have comes in the christmas box and i`ve just read the excellent post above that says this cart may be of poorer quality. if this is the case can anyone recommend a site to purchase the acekardi.

sorry if double posting is not allowed

 

You could try formating it in windows basic under, format in FAT32

errcode=-81 is normal this case.

http://gbatemp.net/topic/179377-ysmenu-error-code-guide/

 

thanks jhon i tried that too, no joy

 

Sorry i'm out of ideas, Just these clone cards for you.

Maybe they is someone hear how has one that knows what to do.

I myself only have an R4 original revolution card, And grate with both WoodR4 and YSMenu.

 

Do you have a second microSD to try with?