even though qfil didn't work after i wrote that post i opened miflash and was able to unbrick my z839 back to factory through a stock fw someone posted in another thread https://forum.xda-developers.com/t/...-z839-specs-information.3696635/post-78929080@luridphantom
Same issue. That tool will kick it from comm 10 to comm 12, but gets that weird error whenever I try to flash it with QFIL.
I wonder if the fact this tool was built for different phone has anything to do with it. And if so, can we modify it to the n9560.
I haven't tried to use miflash yet. I was checking out the firmware I downloaded, looking to see if I could skip a few steps to unlock the bootloader by doing that thing with the boot image before I even flash it, but the boot image is a lot different.
You say it's a big step forward. I hope you're right.
with this dfu to edl miflash method, as long as you have a copy of the stock fw your phone should never be truly bricked