Flashing Apple logo on power-up sequence (iPhone 12 Pro / iOS 14.3)
I am noticing a weird problem with the power-up sequence. Where you would normally expect the Apple logo to appear within a couple of seconds after holding onto the power button, and then the ready / unlock screen. In my case, I see an extra "quick flash" of the Apple logo BEFORE the regular power-up sequence (i.e. steady Apple logo followed by unlock screen).
The phone is less then a week old and the only unusual thing is it hung multiple times when I first set it up via direct iPhone to iPhone transfer. I ended up having to hard reboot it a few times. Since then, I have tried hard rebooting, FULL reset to factory settings w/ all contents removed, and now even install 14.4 beta (just to trigger a software update) -- but the flashing logo issue still remains.
While there does not seem to be a problem once the phone is booted up and in use, I am a bit worried that there may be an underlying hardware (or software?) problem which is best dealt with earlier than later into the ownership. It is definitely not normal.
Has anyone actually come across similar issues? Any thoughts or suggestions on other actions I can try?
Thanks in advanced.