How to Fix iPad Pro Won’t Turn On

If your iPad Pro won’t turn on, especially after water damage, follow these steps to diagnose and repair the issue.

There are several reasons why your iPad may be having trouble turning on, from software and hardware issues to insufficient space on your device. Here are some of the most common causes. This problem can affect all models of iPads, and the solutions you should try are the same for any iPad model you use. This guide will take you through the entire troubleshooting and repair process step by step.

if your iPad won’t turn on, its battery is probably drained. In such a situation, connect your device to its Apple original charger to charge its battery. Leave the iPad to charge for an hour or more until the battery is fully charged. Now, check if you can turn on ,if your iPad has a blank screen, it could just be a dead battery. A dead battery is the most common reason for an iPad not to turn on. But the problem could be more serious than that, including corrupted software or a hardware issue.

Step 1: Initial Checks

1. Press the power button to check if the iPad Pro turns on. If it does not respond, proceed to the next step.
2. Connect the iPad Pro to a power source and wait for a few minutes. If the device still does not turn on, move forward with further diagnostics.

• Press and quickly release the volume button closest to the top button.
• Press and quickly release the volume button furthest from the top button.
• Press and hold the top button until your device begins to restart. …
• Keep holding the top button until you see the recovery-mode screen.

Step 2: Disassemble the iPad Pro

1. Prepare for Disassembly
   • Place the iPad Pro on a heating pad and set the temperature to approximately 70°C.
   • Use a pry piece to carefully separate the screen from the body. Be mindful of the angle and direction to prevent damage to flex cables.
2. Remove Internal Components
   • Unscrew the shielding cover with a precision screwdriver and detach it.
   • Disconnect the flex cables connecting the screen to the motherboard.
   • Continue removing screws on the motherboard shielding cover and detach it.
   • Use a pry piece to gently separate the battery connection from the motherboard.

Step 3: Check the Boot Current

1. Use a Direct Current Supply to power the motherboard.
2. If the current jumps to 2.7A without triggering a boot-up, this indicates a short circuit in the main power supply circuit.

Step 4: Identify the Short Circuit

1. Measure Diode Values
   • Use a multimeter in diode mode to check the main power supply circuit.
   • A normal diode value is around 534. If a nearby capacitor shows a value of 0, it indicates a short circuit.
2. Find the Faulty Component
   • Apply rosin to the motherboard for visual detection of the short circuit.
   • Apply 3V to the motherboard and observe under a microscope.
   • If the rosin on a specific capacitor melts, it confirms that the capacitor is faulty.

Step 5: Replace the Faulty Capacitor

1. Use a hot air gun at 340°C with airflow setting 3 to remove the defective capacitor.
2. Protect the surrounding battery during the process to avoid further damage.
3. Allow the motherboard to cool and measure the diode value again. If it returns to 156, the issue is resolved.

Step 6: Reactivate the Battery

1. Clean the motherboard with PCB cleaner.
2. Apply a voltage of 4.2V to the main power supply circuit to reactivate the battery.

Step 7: Reassemble the iPad Pro

1. Reinstall the shielding cover and screws.
2. Remove any remaining double-sided tape on the screen and rear cover housing.
3. Apply new double-sided tape and secure the display.
4. Turn on the iPad Pro to confirm the issue is resolved.

Final Testing and Observations

• The iPad Pro should now turn on normally.
• If the screen shows signs of water damage but the device functions properly, replacement is recommended but optional depending on the user’s preference.

If you find that your iPad won’t power on, there are a couple of solutions to fix this. You can try to charge your iPad using an Apple-certified charger and USB cable or hard reset your device to see if it turns on. Moreover, if it is due to failed updates, restore your iPad to a previous version using Recovery Mode. However, by using Recovery Mode to repair ‘iPad won’t turn on’ issue; you will lose all your iPad existing data. In such a situation, use professional iPadOS repair software to fix this issue.

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