Hi all – I’m about to give up on this. I work in IT so I know my way around and I’ve got all the hardware to perform the upgrade and clone the disk. I performed a similar procedure that works well when upgrading windows/linux machines (disk or sector clone, expand partitions, etc…)

However, after reinstalling the cloned SSD back into OLED with the data from the old deck, it was stuck a boot loop. It could be a firmware issue, or something with TPM encryption, perhaps the hardware changed too much? I’m not familiar enough with the steam deck to figure it out. But I thought I’d post just to give anyone else a heads up who thought to try this. I am missing something but I’m not sure what.

I’m just going to re-image it and reinstall everything manually. Oh well.

I’m open to ideas if anyone else manages to get it to work.