upgrade ssd portion of fusion drive
I have a late 2012 Mac Mini with 1.1 TB Fusion drive. I would like to upgrade the ssd portion of the fusion drive, but I am getting conflicting information. I know that if it only had an hdd I can add an ssd and create a fusion drive. A web search seems to indicate that is possible. However, I was told by a local authorized Apple repair shop that on a late 2012 mini w/ fusion drive, the ssd is soldered to the main board and cannot be upgraded. Has anyone actually replaced the ssd on a 2012 mini w/ fusion drive? I'm reluctant to tear into it if it is not even possible to do the swap. If not possible, I will probably split the fusion drive into 2 drives. Thanks!
Mac mini (Late 2012), OS X Yosemite (10.10.3), fusuin drive