Nexus 6P stuck on boot

Hello :),
After trying to root my phone, I accidentaly switch to install the TWRP root. After this I was stuck on boot.
I tried a lot of thing with no solving :
- Using the Nandroid backup -> don't work, I am stuck on boot
- Using the Nandroid backup and then remove the lockscreen files -> don't work, stuck on boot
- adb sideload from cyanogenmod13 -> don't work, error : 64, need to factory reset.
- Factory reset then adb sideload from cm13 -> don't work, stuck on boot
- Factory reset then adb sideload from Nexus6P_6.0.0_MBD08K.zip -> don't work, stuck on boot
- Factory reset then push file cm13 then flash -> don't work, stuck on boot
- Factory reset then push file Nexus6p_6.0.0_MBD08K.zip then flash -> don't work, stuck on boot

I don't know what else I can try, how that is possible ?

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