Here are the steps I've done:
- bought a CAC 1173 mini DisplayPort 1.2 to HDMI 2.0 cable
- connected the MBP 13" to a samsung UHD TV w/HDMI 2.0 input
- enabled PC mode and UHD Color on HDMI 2.0 input (but still having 4k@30hz)
- downloaded SwitchResX and found 3840x2160/60p in the current resolution tab
(no need to disable SIP at all)
- selected that resolution setting and got 4k@60hz now working on my TV but..
- since the text and menus were very very small I've tried with 1080p/60 in HiDpi mode and wow
- still 3840x2160/60p but with the FHD look for better representation.. gorgeous!
hope this can help someone else.
