Yes, I thought we were all measuring from the PCB up ?Btw, the 1.51mm height includes the BGA connections. See pages 28-29 of the datasheet for package measurements.
You're right, in fact I half remember the RK3399 needs a blob for the laptop screen and the IMX8 one blob for the HDMI ? I no longer remember the source, so I might be wrong.Yea I just wanted people to be aware that it is very difficult to be blob free
Also, the ARM Trusted Firmware sources include a blob for HDCP, but you can remove it and recompile and the RK3399 seems to be happy (not tried with protected content).
It's hard to live blob free but for me it's important.