I was looking over the forums at OnePlus, there seems to be a lot of folks having problems with the 38R update. More specifically, have used OTA to update to 38R. Problems include random reboot, GPS failure, zoom failure etc.…
Recovery Manager and USB storage
USB Storage to the rescue!
Getting a taste of KitKat

Trying out Android 4.4 or KitKat on my Galaxy S2.