I do not own a PSTV, however, I saw this in another thread and thought it could be of use to you;
From
@yeshuachrist via
http://gbatemp.net/threads/enso-released.478998/page-2
"PSTV INSTRUCTIONS (DON'T NEED TO REBUILD DATABASE or reinstall any programs)
activate henkaku the usual way from the brower or offline installer from the e-mail, then install "enso.vpk" and launch the application from the bubble
next, it asked to reinstall 3.60 OFW, and then downloaded and performed that, it then rebooted to a black screen.
after that, i plugged the ps4 controller with the usb cable into the pstv, and quickly pressed the PS button to get a blue light and then held the L1 button
it booed up normally, and then I ran the ENSO bubble again and then it installed find, then it rebooted normally (with henkaku already active)
(guess I'll delete the offline installer and replace it with the enso bubble, incase I will eventually need it for something) (you don't need to rebuild the database, but if you have to for some odd reason, just move your game folder back into the maidumptool folder and reinstall them, to make the bubbles over, you don't have to ftp anything)
(I stopped using any overclock apps with pstv because it would get extra hot, what I do now, is use two marble coasters on the top and bottom of the pstv as a heatsink, it works)"
Hope this helps! Post back with an update!