Thanks, that did the trick. Cards were what I got when I purchased device and were EXFAT which I guess won't work for FW update but seem fine for songs. Thanks for the simple fix. Time to test everything else.

Just got my DX80 and first order of business was to upgrade firmware. No matter what I've done, following directions found in forums I can't get past this: System restore 5.0. Any ideas what I'm doing wrong? Have a long history of phones and such that I've done FW upgrades and such but I'm...

Had a PK1 and then got an OK1 and gave the PK to my wife. First pair of OK1 started buzzing in left earpiece after about 10 months. Sent in and got a warranty replacement. Going on about 8 months on new ones and they just started a light buzz on quiet pieces at certain frequencies. Notice it a...