First screen replacement service messup
I've been replacing screens for months now, and I accidentally nicked the entire front sensor flex cable on a customer's standard iPhone 14. I didn't think much of it at the time, but now their phone is having serious issues.The screen is fully black. The phone seems to turn on, but there is no display at all.I know I have to take full responsibility for this and make it right. I don't even know what to do next. What is the best way to handle this repair so they don't lose functions? Any advice works.