Did you unplug battery and use Anti Static? If not blown Backlight Filter

Try new Proxy Sensor / Front Camera

No Not even apple Hopefully you have an iCloud Backup

If you cannot remember your lock screen password then your only option is to restore the iPhone / iPod on itunes The device will need to be in DFU Mode You will however lose all your data How to Open iTunes and connect the iPhone to your Mac. Press and hold the Home button and the Sleep/Wake button at the same time. As soon as the screen goes black release the Sleep/Wake button. Continue holding the home button until you iTunes pops up a message telling you that it has detected an iPhone in recovery mode. Click on restore

The best way to do this is to either format the memory card or reset the phone If you reset the phone then you will lose everything on the phone To reset a N7000 do the following Turn the phone off Then hold and press Volume Up + Home button + Power button. Release all buttons when you see Samsung logo. Then you will see Android green man and next Recovery Mode menu. Now select option "wipe data/factory reset" using Volume butttons and confirm with Power button. Choose option "yes" with Power button. After that press Power button to confirm operation "reboot system now". Your phone is now reset to factory

Change either proxy sensor or charging port Both have a mic on the part

If it was searching for signal the stopped working then I suggest that the modem has stopped working. You did the worst thing possible by updating. The phone is clarified by Apple and I bet that the phone does not have an imei. Therefore iTunes throws up error 1 or -1 Nothing Can be done to fix this

No, they are specific

Not the long screw that is the problem, its the new screen faulty put your old one back on to test

Your on an old ios Update and it should cure the problem