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How to launch Vaio Sony T13 (Ivy Bridge - July 2012) in UEFI mode to install 12.04.1?

I tried long press F11, but doesn't work.

How to boot into Live USB/CD with UEFI on latest Vaio S series?

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have you tried f2 key? and delete key? – RJ45 Sep 3 '12 at 10:01
f2 = entering into bios but no efi bios option (confirm by VAIO link by phone) del key I didn't try yet (I try tomorrow ) thank – geekmps Sep 4 '12 at 9:16

If you have "ASSIST" key on your laptop you need to use that button to power your laptop instead of POWER button. Power off your laptop then click assist button for 1-2 seconds. Your laptop will power on and bring a list of UEFI options for you. Select boot from usb/optical drive to boot the Ubuntu media with UEFI support.

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