Hi,



I know I'll probably get some hate for this but here goes.



OxygenOS comes with a new bootloader. I tried to reflash Cyanogen 11S using this bootloader and it had hardbricked my device (no signs of life at all).



I've been flashing ROMS for years and years - I'm no noob so I can only assume there is something in the OxygenOS Fastboot whch doesn't play nicely with Cyanogen 11S/Kit Kat.



I hope I can recover from this if not hopefully OnePlus will be able to advise.



Just thought I would warn everyone please be careful!!!!!!



I encountered my issue after flashing rpm.mbn rebooting into bootloader then it just died.

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