[HACK][ROOT][Device=Bulldog][HP-Pro-Slate-10-EE-G1]

Hi community,

I'm struggling with this HP Slate 10 ee G1 tablet ( ).
The thing is, HP obviously doesn't know about good practices. The whole boot chain is locked. This begin with an ugly Bios that cannot disable secure UEFI, this ugly efi that doesn't boot anything that is not signed, this ugliest fastboot that just not implement all function but just secure update and wiping and of course secure booting.
So, with this post, I was able to root the device ( ) - good job HP...
Every flash of boot.img result in bootloop.
Every Nandroid restore of the system partition on the same tablet, without any reboot, just save and restore, result in a bootloop.

Does anyone struggling whith one of these ?
Does anyone have an idea to break the bootchain ?

If any engineer from HP is listening : "BOOOOOOOORRRRRRRING !"

update (12/10/2016) :
And finally I got it. I manage to boot what I needed to. Bootchain is broken. And it's quite easy after all.
Hints :
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There is no straight forward tools, but maybe I'll wrote some, or not.

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