The best i can find..for the moment.
Check this = click
The tristate it's to debrick:
from my experince soldering a wire to the nor tristate point did nothing, try this method instead. manually patch your nor backup. place the patced backup and the e3_downgrade.bin file onto the SD card then put all the switches on the flasher down and hold start and turn on the console. if the console stays on and the flashing process begins when completed after rebooting the console should boot normally on the firmware you were trying to install, if you see two blue flashing lights and the console just turns off try this.. all switches down except the 6th one (lock/unlock) hold start on the flasher and turn on the console providing that the console stays on once finnished flashing DO NOT TURN THE CONSOLE OFF instead put the last switch down and press start again. once finnished reboot and hopefully the console should be back to life.