Z2 backlight ways

Hello, I have a problem with the Sony Xperia Z2 (D6503), has no display backlighting. The image is displayed on the screen ... but there is no backlight. I changed already display - nothing helped. I checked the fuses near flex connector and near CPU and I think It's OK.
Has anyone backlight ways?
Best regards
Kristoff

Suggest ways to make a TWRP backup directly onto the PC.

I just bought MOTO E xt1022 aa month ago and have rooted,unlocked and flashed custom roms on it successfully with noobish knowledge so far. While doing this, I had to several times make backups via twrp.

Can we make these backups directly on the PC by connecting the phone to the PC when it is booted in recovery without using the sdcard at all ?