Try unplugging the home button connector all together. If an iPhone 7 home button cable is plugged into an iPhone 8 connector, there will be issues with touch and home button because the connectors are very slightly different.
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Try unplugging the home button connector all together. If an iPhone 7 home button cable is plugged into an iPhone 8 connector, there will be issues with touch and home button because the connectors are very slightly different. If touch works afterward, I have an idea of what might restore touch function and possibly home button function. I hope this helps!
Try unplugging the home button connector all together. If an iPhone 7 home button cable is plugged into an iPhone 8 connector, there will be issues with touch and home button because the connectors are very slightly different.