After using a device you just bought a few weeks ago, you might find some weirdness going on, as experienced by some of the Motorola DROID RAZR HD/MAXX HD (XT926/XT925) users who have problems with the SD card. They randomly get a notification error “Card removed unexpectedly”, which tells you that the SD card has been uprooted suddenly from the device, even though the card still on the inside. This isn’t just an error notification, since the card can’t be recognized by the device once you get this alert, you can check it via File Explorer app.
A user even notice that his SD card (Sandisk 32GB Class 10) damaged after encountering this issue. We don’t know for sure why such a thing happens, due to bad SD card or a faulty device. There’s short term solution in case you having this problem is to carry out a system restart. You can also try to re-inserting the SD card, replace with another card, or even try to formatting the card with the PC. It never hurts to try, since the problems experienced by each person may be different. When these issues come back again after a few hours, just try to get a new SD card or or go to the Verizon store to repair your DROID RAZR HD.