[Ricky D'Angelo]

I bought two old kobo wireless ereaders from shopgoodwill about a year ago both for under 10 dollars. One Kobo worked fine until an update which rendered it useless. A search for this fix revealed this kobo has a memory card which can be flashed so maybe one day I'll bring it back to life. The other kobo had a D-pad which crumbled so for a time I used it as a picture viewer. Then I needed a memory card for my kindle fire so I decided to swap out the kobo sd card to the fire. The SD card reformated fine but later I got a warning about the SD card being too slow. Since I don't plan on watching movies on my fire tablet is it safe to leave the kobo sd card or is it simply too slow/old?