IPad Pro 12.9 No touch after screen replacement repair

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IPad Pro 12.9 No touch after screen replacement repair
Device IPad Pro 12.9 1st Gen, iPad Pro 12.9 2nd Gen
Affects part(s) motherboard
Needs equipment soldering iron
Difficulty ◉◉◉◌ Hard
Type Soldering


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Problem description

Fixing an iPad Pro 12.9 that no longer responds to touch input after a screen replacement / device disassembly.

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Symptoms

  • Non-working touch

Solution

If there is no touch after attempting a screen replacement with a known-good screen, most likely the screen was connected/disconnected with the battery plugged into the board. This can result in a blown touch filter on the far end of one of the display connectors. Replacement of this component will often times resolve touch issues.