I can confirm with Vlad’s instructions that this is working on Raspberry pi 4 8GB when previously it was not. The big thing I think everyone is hitting a wall at is the bootloaders being up to date and not being able to go backwards on the version. I had to download the July version of the bootloader on the 16th.
- I had to go to the following URL: https://github.com/raspberrypi/rpi-eeprom/releases
- Look for the eeprom listed: rpi-boot-eeprom-recovery-2020-07-16-vl805-000138a1-STABLE
- Extract the files from the zip and winscp or SCP transfer the files into the /home/pi directory.
- Run the following command to revert the eeprom to July 16th. Please note you must be in the same directory in where you put the files via SCP. sudo rpi-eeprom-update -d -f ./pieeprom-new.bin
- sudo reboot the system and wait for it to boot up and shut it down and replace the MicroSD card with the SSD in the USB 3.0 Port.
Please note as well, now that I started to think about this. You can use wget to receive the files into the /home/pi directory and unzip it from there.