Hi I'm trying to root my oneplus two following the oneplus youtube video, and I've got as far as flashing TWRP. I've flashed twrp-3.0.2-2-oneplus2 through fastboot flash recovery command. All seems to go well - sending recovery OK, writing recovery OK, but when I try to boot into recovery I get the standard Oxygen OS recovery. I'm stuck. Is there any solution? Something I've missed?
Please help.

I didn't find the right solution from the Internet.

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