In the first pic or top side, in the pic above the Wolfson Ultra-Low Power Stereo CODEC(blue box) you will see 6 pins with the words PWR,USB BOO,RST. If you short the middle pin closest to arrow with copper ground tape, you can fastboot the device using a plain 4pin usb cord. Useful for recovery boot loop or soft bricked devices. The other 2 pins named, Pwr will turn device on /off if broken physical buttons (long "press" the same as if using buttons). RST will power cycle /hard reboot device, don't jump the other side of pins (the side with the 1400 numbers) I have successfully tested this on first and second generation kfhd7