I tried factory reset before, did it again now, didn't help. The fact is that I initially took the file not for my model, as I did it from YouTube videos, but I lost my original file, later I changed the parameters in a non-native file. In addition, I compared files of different models using the program, they are different, despite the fact that they are all from the same E5-553G series. Anyway, I need the original BIOS. Because even updating the BIOS version does not give any result. I tried to activate AMD-V in different ways. So I have a .rom file on my laptop with the original BIOS, but I'm not sure about it because of its size. They wrote on the Internet that this file should be 2048 KB, 4096 KB, etc. an integer MB, mine is 4608 KB in size. Therefore, I am afraid to sew up this version, because I do not want to get a brick. Maybe you still have vars.txt files from the Acer Aspire E15 E5-553G-T0F0 when you helped the previous sufferer in 2017? In principle, it will suit me with virtualization turned on, it doesn't matter anymore, the main thing is to fix the RAM.