I wrote a guide over on the OnePlus forum to simplify the exploit that ifg found here: http://forum.xda-developers.com/onep...-data-t2862593
I took his guide and simplified it here: https://forums.oneplus.net/threads/g.../#post-5039021
I don't know if it will work with the 33R update though. It worked with 30O, and 33R is pretty much the same thing. So, would anyone like to try this exploit out for me? You must have a locked bootloader and be on 33R.
PM me for the link to the exploit. It involves downgrading the bootloader to the 25R version, temp-booting into TWRP, flashing @Mnt-XDA's bootloader exploit, then re-upgrading to 33R.