both of the power supplies are 5v/3A. both work with my other pine64 using either the micro usb or euler. actually for 6 months the pine64 in question booted just fine with either supply using either micro usb/euler. it was not until after 6 months the pine64 in question begin the boot problems. so in my mind it points to some type of fault with the pine64. but then just out of trying everything i started to power one supply then the other and i was surprised it booted and even more surprised it did not fry the board.
power supply, https://www.amazon.com/gp/product/B006QY...UTF8&psc=1
micro usb adapter https://www.amazon.com/gp/product/B019CX...UTF8&psc=1
edit: the thing that comes to mind is a capacitor that may help provide additional juice during the boot sequence that is no longer good and thus this additional power needs to come from another source, enter the 2 power supplies, to get the board past the boot sequence at which point the board can operate at levels of current provided by one power supply. thing is it is no longer as easy as it once was to identify a blown cap so that sorta rules out visual inspection of the board, for me at least, particularly when where the cap is placed is an unknown. i can see it on a schematic that is available but that is not much help in identifying the physical location.
power supply, https://www.amazon.com/gp/product/B006QY...UTF8&psc=1
micro usb adapter https://www.amazon.com/gp/product/B019CX...UTF8&psc=1
edit: the thing that comes to mind is a capacitor that may help provide additional juice during the boot sequence that is no longer good and thus this additional power needs to come from another source, enter the 2 power supplies, to get the board past the boot sequence at which point the board can operate at levels of current provided by one power supply. thing is it is no longer as easy as it once was to identify a blown cap so that sorta rules out visual inspection of the board, for me at least, particularly when where the cap is placed is an unknown. i can see it on a schematic that is available but that is not much help in identifying the physical location.
