KbsPro for Acer Aspire E15 E5-553 E5-553G E5-573 E5-573G E5-573T Laptop Backlit Keyboard Hungarian HU Magyar Billentyűzet
Compatible with those
Difference
Confirm your laptop models in this ways
Your keyboard wants replacement when in those situations
Replace and install the keyboard
For installing instruction, please refer to below video(here we appreciate for those kind people who share their keyboard installing videos):
https://youtu.be/21Yf-gBEubM
The whole installing process probably takes about 30 to 50 minutes. It requires some DIY skill.