The older buster doesn't have the proper firmware for the Pi4 boards, and newer Pi4's are coming with the firmware on them (unless they are the 8G versions)? you can take your older one and put it in the Pi 3, and do the apt update, apt full-upgrade and rpi-update, shut it down and pop it into the Pi4 and it will boot.? Once it's loaded on the Pi4, do the update/upgrade again, then do a sudo rpi-eeprom-update -a -d and reboot again
All,
Bought two new Pi 4 boards in early
December.? They will not boot my PiGate image which is built on Raspbian
Buster, but an OS build from 2019.? Doesn't matter what size SD card,
just won't boot.? The GREEN LED flashes 4 times slowly and then 4 times
fast, then repeats.? This means there is something in the boot loader
that is failing.? This happens with both the new boards.? I bought a new
Pi 4 board in late November and it boots OK.? The same image works with
all older Raspberry Pi boards, including the Pi Zero.
Downloaded
and made an SD card with the latest Raspbian Buster from Dec 2020 and
it boots OK.? So there is something different on the newer Pi 4 boards,
unless I just happened to get two boards from Adafruit that are
defective in the same way.
This is not a power supply issue.
Just curious if anyone else has seen this
Mark
KD0QYN
