Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
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Location: Cambridge

Updated bootloader for Raspberry Pi 4 [old and obsolete!]

Wed Jul 17, 2019 3:36 pm

sudo apt update; sudo apt install rpi-eeprom

We are about to release a new version of the Pi4 bootloader. Along with some minor bug fixes this resolves a potential problem for some HATS in the halt state due to the change to power off rather than switching to the low power state. This release now changes the behaviour to be the same as earlier models where both 3V3 and 5V pins remain powered on following 'sudo halt'
See also

If you'd like to try this then download ... 7_9_kkq3Jm and follow the instructions in the embedded README.txt
sha256sum acd3334ae897a6672056700740c97c3dd09f0e2b5a615d4467a6f888472d05e8

You can revert to the original production version by downloading it again from and following the same process.

If all goes well then this will become the default image used for manufacture

Code: Select all

Release notes
2019-07-15 - RC3.3 - Git 514670a211212cbbbbd5bcf91555c86ca4750897
   * Turn green LED activity LED off on halt
   * Pad embedded config file with spaces for easier editing by end users.
2019-07-12 - RC3.2 - Git 8963e26a3404d153abd229f5d6aa649437f61230
   * Halt now behaves the same as earlier Pi models to improve power behavior at halt for HATS. 
      * WAKE_ON_GPIO now defaults to 1 in the EEPROM config file.
      * POWER_OFF_ON_HALT setting added defaulting to zero. Set this to 1 to restore the behavior where 'sudo halt' powers off all PMIC output.
      * If WAKE_ON_GPIO=1 then POWER_OFF_ON_HALT is ignored.
   * Load start4db.elf / fixup4db.dat in preference to start_db.elf / fixup_db.dat on Pi4.
   * Embed BUILD_TIMESTAMP in the EEPROM image to assist version checking.
2019-05-10 RC2.1
   * First production version 

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Re: Updated bootloader for Raspberry Pi 4 [old and obsolete!]

Tue Jun 02, 2020 12:41 pm

initially moved here (removed for our readers) because it seems to give bad information, and has a broken link now
Was re-activated and moved to off topic because someone didn't understand it was obsolete information. :mrgreen:

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