I have FEZ Domino and I tried to connect it to a external board. The external board has 12 V stabilized voltage (11.63V according to my voltmeter). I used the external pins on Domino - Vin and GND because I saw that these pins are connected directly to the original power supply for the board. The result was not every time Domino booted normally sometimes, but sometimes I have to press the Reset button to boot normally.
Then I tried to connect it to the PC only with the USB cable and everything was normal.
After that I tried to supply the external board from the original Domino’ power supply using Vin and GND. Then the Domino didn’t boot and when I touched the chip it was hot. I disconnected it and wait a little bit to cool down and connected it to USB. But the only result was that the chip is getting hot.
Do you think it still has hope for it and what should I do or I should wait for my new one to be delivered?
Thank you in advance,