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Raspberry Pi 4 Wont Boot Fix. Bootloader Update.

My Raspberry Pi was intermittently no booting. The screen wouldn’t show up. This fixes that problem.

There may be other Reasons you Pi is not booting. anther fix is to try a different display.

Update 18/3/2021
Github for rpi eeprom updates
https://github.com/raspberrypi/rpi-eeprom/blob/master/firmware/release-notes.md

sudo apt update
sudo apt full-upgrade

sudo reboot

sudo raspi-config

Check version with
rpi-eeprom-update

Change between stable/beta updates
sudo nano /etc/default/rpi-eeprom-update

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In this video
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