- Device not charging
- No access to data services
- SD card un-mounted or removed message
- Device is not recognized by Windows XP, Vista, or 7 when connected to a PC
- Predictive text with the Android keyboard is not working
Sprint has been actively tracking the issues as well as some of the possible workarounds for the situations listed above. No date has been set for a fixed version of the update but they are working to get things sorted out as soon as possible. Until then, it's probably best you stay away from the update.