Can you use a processor tray designed for a 2010-2012 model after the firmware update? Not inclined to actually replace the CPU chips.

kyleからの引用：

Yup, the Panasonic UJ-135-A will work just fine.

The web site says 12.7 mm while the original drive says 12.5 mm. Small difference, but could be a problem closing the case or aligning the disc in the slot.