Hi,
I have a B2 that wouldnt power on (no LED's showing) and tried with two seperate power supplys,
I opened it up to see if was anything obvious and found if I have the power connected and then power the Raspberry PI directly via USB it starts up fine, and even after I remove the USB cable it continues to run fine.
Once the device is powered off the same problem happens, no power / LEDs unless I start it up with the USB cable
Has anyone seen this before / could recommend any way to get it fixed?
Thanks