Chosen Solution
I can put my phone in the DFU mode, however once I attach it to the power supply (and therefore disconnect from iTunes) it brings itself back into the normal boot. I would like to probe the logic board with the multimeter in the DFU mode, but I find it difficult. Is there a way to keep the phone in the DFU mode? One option that came up to my mind would be to keep it connected to iTunes while probing. Or am I doing something wrong altogether and the phone should stay in the DFU mode?
why do you connect it to the power supply after putting it in dfu mode, just keep the supply attached and enter dfu
