P9 Lite boot loop - Phone and FRP Unlocked

Hey there!
I am opening this thread because my phone cannot turn on. It tries to turn, it shows the screen cannot be trusted and the it goes to erecovery. I have not done anything recently, but I noticed a few days ago that there was an update to a Huawei's app and probably that one was the cause.

I can access to TWRP recovery, my phone and FRP is unlocked. How can I bring again the phone to work (without deleting anything if possible)?

Thank you!