Leslie Leslie

Use 3U Tools (Freeware) to power off your iphone .

Try to update your phone without front cam and back cam attached, only logic bord, dock connector and touch. ( and of course battery )

You can use 3U tools to recover originaal screen serialnr. You can find this in in view verification report> screen serialnumber

You can buy them from a chinese website for less then 5 bucks,

The flex for the home button on your iphone 7 runs behind the metal backplate on lcd screen, you need to buy a screen, they dont sell them separate.

Apple only will help you if you have the original invoice of the ipad.

You must restore it in DFU mode with itunes becouze there are some left parts of Cydia in your ipod.

You can try to put a new battery in it and look if that will help, it is the cheapest way.

To test the primary microphone on the bottom of your iPhone, open Voice Memos and tap the record icon. Then speak into the microphone and tap the play icon to play back the recording. You should be able to hear your voice clearly. To test the front microphone, open the Camera app and record a video using the front camera. To test the rear microphone, open the Camera app and record a video using the back camera. When you play back the video you should hear your voice clearly. If your voice sounds faint when you’re on a phone call, make sure that your rear microphone isn’t blocked or covered. If Siri can't hear you, make sure that the receiver and front microphone on top of your iPhone aren't covered or dirty.

Only Apple you can trusth, all other will likley scam you.