What did I just buy

Went to calibrate using the function generator and variable capacitors as suggested in manual 0.92b. Opened the back of the case and found the following:

DSO quad - 1.jpg
DSO quad - 2.jpg
DSO quad - 3.jpg

What did I just buy and how do I calibrate it to get it working properly???

apparently you have the 2.7b hardware newest hardware, and I have no idea on how to calibrate it… also charging it fully before you calib is a very good idea

You calibrate it the same way.
The adjustments caps are under the battery.
The hard part is on mine the battery was stuck on with double sided tape and it was hard to remove it without damaging the it.