You could try this. Refers to screen muting. https://support.vizio.com/s/article/No-Video-No-Picture-Black-Screen?language=en_US Generally speaking, the black screen with backlight only is a very common symptom for Vizio Tvs with a failed main board and or corrupted firmware. Just not sure how that would come from messing with settings though. #
Few things you could try to resolve error 9. Put the phone in DFU mode before trying to restore it. Try another cable. Try using a program called 3u tools to restore it just in case its an issue with itunes. Thats all I got, if those fail then I think it will be a hardware issue.
2 ways to find out without opening the console. Either try another ps4 in the same location to rule out a wifi signal issue or interference or you can take the ps4 somewhere else with wifi and see if you run into the same issue. The antennas dont really go bad unless the console has physical damage. Also check the speeds when you do the internet test. If they are low, move the console closer to the router and see if its improves.
I dont like to assume anything so i have to ask, did you try another lcd? I didn't see if you mentioned whether you did or not. Also Im curious what temp do you use to remove the touch ic's. Ive been starting with 270 to get them off then 240 from there on out. Never had an issue with anything else getting damaged and I dont use tape or heatsinks to protect the other chips.
If the battery will not hold any charge whatsoever, and the laptop only runs off the charger then theres a chance you may be having a logic board issue or a battery issue. How was the battery working before it stopped working? Did it get worse over time or one day it was normal and the next day it was dead?
The digitizer usually only affects the touch function, the LCD is what shows picture so it kinda sounds like thats what your having an issue with if the picture is distorted or irregular. Also where you are putting pressure happens to be about where the LCD plugs into the logic board. There is usually a metal shield over that connection to prevent it from coming loose so its tough to say what happened for sure until you open it and look under that shield. If everything is connected properly you may need to replace the LCD.
Have you checked voltage on the battery? Maybe the new battery was junk and died already, especially if it was an ebay part. Use a multi meter on the outer pins of the battery connector. Report back what you find.
Missing a screw shouldn't cause that. The phone has 2 mics and the one your having an issue with would be the one on the bottom connected to the charge port. Its right in between the charge port and headphone jack. Make sure the flex cable coming from the charge port is secure to the logic board. If you can open it and just reseat the connections and make sure the mic is in place properly. Also look for damage around the charge port area, there are some small components that could get damaged but thats less likely. Sometimes the mesh on the bottom covering the mic can get clogged but I dont think thats your issue.