MacBook air not turn on, black screen with backlight after update

Hello,

I have a problem with my mid 2013 MacBook Air,

I’ve made an update from macOS from Mojave to Catalina. During the update something happened, when I gone back to my Mac I saw only black screen with backlight. I didn’t touch it for whole night, at the morning Mac was at this same state.

I decided to force turn off with power button and now it’s not booting. No apple logo, no start sound. When I press power button I do hear the fan, so its working.

After 5 seconds the Mac turns on the backlight and I see black screen backlighted. Heat pipe from cpu is heating up like normal using.

It’s not LCD issue, I tried to change backlight level with no success… I tried PRAM reset and SMC, nothing happened.

I opened the system and looked at the motherboard but it looks normal. I don’t know that is important but 1 week ago i replaced SSD to original one (i’ve changed one year ago from 128 to 512 Samsung EVO with adapter). I tried tu turn on without SSD but nothing changes…

Is something what i have to try to bring my lovely computer back to life? :(