Updating without battery in the CoolerMaster case via EFI was a failure, I do not recommend. At the end of the update process via EFI it told me it had successfully updated but version numbers had not changed. Instead connect a battery and update via Windows.
Here is what happened when I tried EFI update without battery:
Updating from stock, the mainboard is outside of the laptop in the Coolermaster case. Rear left port is power, read right port is USB-c to monitor, front left port is keyboard, front right port is the USB stick with the update.
Booted, updates started, screen went blank, 5 minutes later screen is still blank. Fan is whirring.
After 10 minutes I powered off and thankfully it was not bricked. It booted in to the update and gave the message “Progress: 0 out of 5 flash steps done. Right PD controller (01) is up-to-date. Skipping flashing. Flashed one PD controller. The system will shut off. Please move the power-source to the other side, to update that PD controller. Then turn the machine back on. The firmware update will continue.”
I powered off and swapped the monitor and power cables, initially it seemed it would not power on but after 2 minutes of mashing the power button it did, and the update resumed. Shortly after, the screen went blank again. This time, the screen came back on after a minute with the message “Unable to redirect file. Script error Status: Invalid Parameter (line number 116) FS0:\framework-firmware-updater\firmware>”
I randomly changed up the ports (power rear left, monitor front left, keyboard rear right, usb stick with bios update front right) and powered on. It told me 2 of 5 had completed. Before I could do anything else it told me it needed to reboot, and it did so automatically. I lost track of what was happening because it was so fast, but the screen went blank and the device powered off. Once again it refused to power back on, so I disconnected it from power and waited 30 secs as suggested. Still it will not power on.
So I swap the left-side ports around as suggested, now it powers on and tells me 3 of 5 have completed. It continues the updates and says update 3 has completed. It moves on to update 4 (H2OFFT-S64) and tells me “Warning: No battery connected, this process requires AC power and a charged battery … . Error, update bios failed! Press any key to return to OS”. I press CTRL-ALT-DEL to reboot, and it appears to start up but there is no output to the monitor, I am treated to a pretty lightshow with red blue and green lights from the mainboard. I try disconnecting and reconnecting the monitor, no joy, so I unplug the power and wait 30 seconds. Just for kicks I swap the power and monitor cables around again.
It powers on and tells me 5 out of 5 flash steps done.
Display output from right-sided ports no longer working.
