Very slow in EFI (internal keyboard, touchpad too)

Hi all. I put myself in trap. I bought MacBook Pro (Early 2015) MBP12,1 from reseller and don't receive warranty. Official 3rd Apple Service Center say "You don't have documents about warranty – we can't repair you mac for free, but you have free apple warranty (one year) that's why we can't fix this machine for money). So About problem:

After Firmware update (≈ in April month) I get problem with EFI. In EFI mode my mac very very sloooow. (Video on YouTube: https://www.youtube.com/watch?v=74Z56UJ_Zaw)

Diagnostic Tools slow but show problem with SDCARD (In OS all fine and card read/write normally).

And when I enable FileVault I can't enter password (keyboard and touchpad slow slow). I can type password only with USB devices (USB keyboard – password and USB Mouse – choose account). More info on this forum thread: http://forums.macrumors.com/threads/retina-macbook-pro-13-suddenly-freezes-upon- restart.1957979/#post-23899694

Anybody know solution? Maybe possible reflash firmware? (--force flag etc...)

P.S. I already try Reset SMC/Reset NVRAM/Fully reinstall OS (with dd if=/dev/zeo of=/dev/rdisk0)

P.P.S. Thank you %user% for reading this and maybe try to help!