Ps4 slim 2016 disc drive issues

Got someone to change my disc drive because it stopped taking in and reading discs, but that didn’t help. They say its most likely the chip thats married to my motherboard that might be fried but in the case of that what do I do?

Could be a fuse on the board… start by checking fuses continuity…

The fuses were checked and passed inspection. The technician said it was the chip in the motherboard cause they checked everything else. How much does it cost to fix something like that you think?