Chosen Solution
I facing this issue while restarting the phone and it stuck on blue Lenovo boot screen for many hours and never start up in to the os. I try hard reset hold Power & Volume Up & Volume Down same issue stuck on Lenovo boot screen.
Hi, If you are holding all 3 buttons together then this is not the right way to do it. The procedure for a Lenovo P2 hard reset using the hardware buttons is to use only the Power and Volume Up buttons to get into the boot menu area so that the Recovery menu can be selected. Here’s a link that shows how to do it.
peksung possibly time to reinstall the firmware. Check this out for the How-to.