Nokia 820 won't read micro sd card

[Burnout421]

depends on the Class of the memory card, just read up on the windows phone approved ones!

Read up where, exactly?

 

[nemesm]

I also bought a Sandisk 32g class 10 card. I can copy videos over just fine, but I can't sync music - the built in hub just won't recognize anything, says the folder is empty. Tried formatting every which way, no improvent. It really sucks that I have to keep my music on the internal memory, I ran out of space in a day. I don't know but it seems every possible bug that exists for a windows phone rears its ugly head when it comes to my device. Do you have any ideas if GDR3 fixes any of these issues? Or do you happen to have a suggestion to my regarding the syncing issue? I would really appreciate it.

 

[nemesm]

In the end, hard reset fixed it. I did it with the card inside the phone. Now I had no issues copying over songs and videos, everything's just fine!

(For now, I hope the duplication problem won't resurface...)

 

[Cryio]

Maybe the card is too slow? I don't think WP likes anything below a Class 3 or 4.

 

[finnius]

Although I do not have a Nokia, I am sort of having the same problem with my HTC 8XT. My microSD card was working fine (32GB, Kingston), but files "seemed" to be self-replicating. Songs and pictures were showing up dozens of times, but didn't actually show up that way if I put card in PC and looked. Went to Windows Store and the guy (who seemed pretty clueless) suggested I reformat the card to make sure it matched my PC. Checked my PC and it is NTFS so I reformatted that way, no longer worked. Files synced, but when I tried to access from my phone it said nothing was there. If I opened from PC, files showed up and opened no problem. Tried exFAT - got same result. Tried FAT - same result. So a card that was working with issues was reformatted and now will not work in phone. If I check storage space from phone, it shows files are there, but they don't show up under music memory used or pictures, show up under "Other" and the phone wont recognize them. Any suggestions? I saw one somewhere that suggested now reformatting my phone. Kind of a frustrating problem.