adb device not found
Find a recovery, such as CWM or TWRP, and download an image. Then use "fastboot boot recovery.img" to boot into the recovery file and reflash a stock ROM, which should solve the problem. Note that even if you don't have a sd card, you should have a partition called /sdcard on the internal memory, which you usually can push files to. Also note that adb access can usually be gotten in recovery. Good luck!