Honor 8 AL00 update failed

Hello everyone,
I come to you because I am exhausted about an update that failed, and I have no idea to how to solve this problem although I tried innobracle things since almost two months (after-sales service, forums, test install firmwares ...) !
The problem is that I live in France and I bought a china/asiatic (?) version of the Honor 8 (FRD-AL00) instead of an european version (FRD-AL09) and so I received an update that was not compatible.
I was in Android 7.0 and EMUI 4.1 maybe... and this update soft-bricked the phone (eRecovery menu). Therefore I had to flash a ROM.

First I tried a lot of firmwares with Android 7 and Emui 5.0, but it did not work.
Then I tried to rollback the version. I used an intermediate file to prepare restoring (FRD-LXX EMUI5.0 + Android7.0 to EMUI4.1 + Android6.0) and I installed the firmware FRD-AL10C00B175_android6.0_emuie4.1 (so AL10 and not AL00). That was the first time that I succeed to install something, but that was a chinese version, and actually it does not work, I loop on the setup menu at the launch, when you have to choose the language.

Then I tried install again other firmwares but nothing works! All versions I tried not works "Incompatible with the current version" in eRecovery.
I search a lot on internet, on forums etc... and I did not find anything exept the fact that the original ROM was certainly an edited ROM, installed by the importer, which is an european version that can be installed on AL00.
A solution that worked for people who dit not rollback their version is to flash this edited ROM version (h t t p s : / / yadi.sk/d/_2GHOvkr3Num8B) , from this tutorial (h t t p s : / / translate.google.fr/translate?hl=fr&sl=fr&tl=en&u=http%3A%2F%2Fforum.f randroid.com%2Ftopic%2F261625-gros-probleme-mise-%C3%A0-jour-emui%2F%3Fpage%) (original tutorial : h t t p s : / / translate.google.fr/translate?sl=auto&tl=en&js=y&prev=_t&hl=fr&ie=UTF-8&u=http%3A%2F%2F4pda.ru%2Fforum%2Findex.php%3Fsho wtopic%3D808947%26st%3D4960%23entry66154729&edit-text=&act=url).
I tried and it did not work because I did the rollback maybe.

So... do you have any solution?
I tried to install tens and tens of incompatible firmwares. Do you know what firmware version could work to restart my phone?? (For example I tried all Full-MF versions (h t t p s : / / boycracked.com/2017/06/15/official-huawei-honor-8-frd-al00-stock-rom-firmware/) and a lot in Android 6)
Another solution is to unlock the bootloader to force install the edited Rom Version, but I don't want to totally brick the phone...!!

So what are your recommendations?

Thank you in advance,
I really hope you can help me!

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