Chosen Solution
Ok I’ve got a customers iPad Pro 10.5 A1701 here and it’s not booting. I’ve tried a new battery and have checked all over the board under the microscope and cannot find any noticable damage. Amp meter is showing 0.40 - 0.42 Amps, 4.94 Volts. I’ve checked the screen connectors and LCD but again, no noticable damage. It could be Tristar IC but not sure where the IC is on the board.
To make sure that your iPad Pro isn’t just stuck on black screen, try to do a forced restart. Here’s how to force restart an iPad Pro: Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. dqfanfeedback