IPad Pro 11 Not turning on, drawing no current with little ticking noise repair

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IPad Pro 11 Not turning on, drawing no current with little ticking noise repair
Device IPad Pro 11in 1st Gen
Affects part(s) Main Logic Board
Needs equipment multimeter, soldering iron, soldering station
Difficulty ◉◉◉◌ Hard
Type Soldering


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Problem description

Solving an issue where the iPad 11" 1st gen is not turning on with ticking noise.

C3800 (Figure 1)

Symptoms

  • Ticking noise
  • Drawing 0A (no current)
  • Not turning on

Solution

This specific problem was traced to a shorted line on PMIC/CD3217. The culprit was a shorted cap C3800 (Figure 1).

It could also be one (or both) the 2 "middle pins connecting from the board to the battery (clk and dat0) that could have been damaged when the battery gets lifted, just make a straight jumper from the motherboard to the battery and that will solve the issue.