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 https://github.com/raspberrypi/linux/issues/3065
If you'd like to try this then download https://drive.google.com/open?id=1hrnzA ... 7_9_kkq3Jm and follow the instructions in the embedded README.txt
You can revert to the original production version by downloading it again from https://www.raspberrypi.org/downloads/ 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