Solved! Undo Rollback android 7.0 to 6.0 (Huawei P9 lite)

Jun 17, 2018
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About a year ago a did a rollback on my Huawei P9lite from Android 7.0 to 6.0. Now i want to update it back to the latest version available.
The phone won't do it automatically and I also can't find the right package online to do it manually. Does anyone have some advice on how to do this?

The current build is VNS-L31C900B160 (It also used to be C432 for europe instead of C900)
The phone hasn't been tampered with aside from the rollback.

Thanks in advance