2 SSDs to your computer's motherboard and the router ... That's how easy it is to update the firmware of your SSD. The method highlighted above will work for SATA and external SSDs, too.
To prevent errors, allocate a small page file (e.g., 800MB) to the C: drive while setting the larger page file on the secondary SSD. Restart the computer and verify the configuration. Read ...
But you can leave those woes behind you with this crazy deal. Right now, you can get an easy SSD upgrade for your Steam Deck, bumping it up to 2TB for just $125 on Newegg with a coupon code.