Brightness problems with Zenfone 3 - Asus ZenFone 3 Questions & Answers

Hello,
I was using my Zenfone 3 (in the back of the device is written ZE520KL) normally: Stock ROM, no Root, Never touched the bootloader (It means that I DID NOT installed Custom ROM nor Unlocked the bootloader nor rooted it). Then suddenly the brightness of the device went crazy. I mean, when I boot de device every thing works fines, but when the screen locks up when I unlock it or wake it up the brightness is lower than the lowest brightness configuration possible.
To try to fix it I:
- Change the brightness in the Android - NO success
- Turn off the automatic brightness adjustment - NO success
- Reseted it to Factory settings - NO success
- Flashed a older version of the android using the script from the package downloaded, i think they call it AFT(Actually, here comes something weird: If I try to flash it with the ZE520KL version of the ROM it does not flashes it, I had to use the ZE552KL version to get the flash working) - NO success
- Unlocked bootloader (Installed the TWRP 3.2.3 and the weird thing is that the extreme low brightness problem that I was facing in the Android when the screen wakes up is present in the TWRP. And the worst part is, it happens from boot into it. I even tried to change the settings and set the brightness to the maximum value in the TWRP's settings and nothing changed) - NO success
As I did not have success with anything, I locked the bootloader and flashed the stock image of Android again.
What really bugs me is that if I restart my device by holding the power button for some seconds, the display starts correctly, the auto-brightness works correctly and the brightness settings works just fine.
Could anyone please help me?
Thank you in advance
Freeny

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