Hi, i have pi 3 b+ and it is always displaying the lightning bolt icon. now i know that disabling it is stupid and am not trying to do that. and i thought that my power supplies suck so i connected it to my lab bench supply,
- set 5.1V 2.5A and turned it on. - jup still lightning bolt with under-voltage warning...
-- measured input voltage = ~4.6V
- set 5.3V 3A and turned it on. - jup still lightning bolt with under-voltage warning...
-- measured input voltage on raspi = ~4.8V
- set 5.5V 4A and turned it on. - no lightning bolt... aaand its back again (sometimes)
-- measured input voltage on raspi = ~5.1V
so after these tests i know that there is a problem - the lightning bolt should only appear if voltage is below 4.65V
i cant even tur on the raspi with 5V power adapter from the wall (rated 5V 2.5A) - it keeps rebooting..
so i have used it for some time now and am trying to make magic mirror and the lightning bolt all the time through the mirror is not immersive
so that is why i am here, maybe some suggestions? i really dont think that a higher rated power adapter would help...