¿El iPad Pro no se enciende? Aprende a arreglarlo después de un daño por agua

Have you encountered the disheartening situation of finding your beloved iPad Pro damaged by water and not working properly? Whether you mistakenly dropped it in the bathtub or spilled water on it, we’re here to assist you. This blog post provides precise details and proven methods to recover your water-damaged iPad Pro.

Initial Troubleshooting:

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser
  • When your iPad Pro won’t turn on due to water damage, try pressing the power button.
  • If it still doesn’t power on, connect it to a power supply and check for signs of life.
How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Disassembly and Heating

To begin the repair process, you’ll need to disassemble the iPad Pro.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Place the iPad Pro on a almohadilla térmica and heat it to approximately 70°C. Carefully separate the screen using a pry tool, paying attention to the angle and direction to avoid damaging flex cables.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Motherboard Inspection

Remove screws from the shielding cover with a screwdriver and detach the shielding cover.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Disconnect flex cables and proceed to remove screws from the motherboard’s shielding cover.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Inserte un palanca between the battery and the motherboard and disconnect the battery.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Check the motherboard’s boot current; it should be normal when powered with a direct current supply.

Identifying the Short Circuit

If the boot-up hasn’t been triggered and the current jumps to 2.7 A, there’s likely a short circuit in the main power supply circuit.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Measure the diode values of the main power supply circuit using a multimeter. A normal diode value is around 534 ohms.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Look for nearby capacitors with diode values of 0; this indicates a short circuit.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Short Circuit Location

Due to the presence of numerous interconnected components on the circuit, we employ rosin detection to locate the component causing the short circuit. In this case, the rosin dispenser is utilized for dispensing the rosin. It offers a simpler and more effective operation when compared to the conventional soldering iron.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Apply a voltage of 3 V to the motherboard and look for melted rosin on a capacitor, indicating damage.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Component Removal

Remove the damaged capacitor with a hot air gun at 340°C and airflow set to 3. Ensure you protect the surrounding battery from heat damage.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Testing and Activation

After the motherboard cools, measure with a multimeter again; the diode value should return to a normal value (around 156 ohms).

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Power up the motherboard to trigger the boot-up; the boot current should jump normally.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Activate the battery by cleaning the motherboard with PCB cleaner and applying a voltage of 4.2 V to the main power supply circuit.

Reassembly and Final Testing

Utilize PCB Cleaner to clean the motherboard. Take out the Pry Piece. Activate the battery by applying a voltage of 4.2 V to the primary power supply circuit.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser
How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Prepare the iPad Pro for testing by putting together its components. Secure the screws and attach the shielding cover. Prior to placing the screen, ensure that the double-sided tape on both the screen and rear cover housing has been removed.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser
How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Apply fresh double-sided tape and proceed to install the display.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Power on the iPad Pro to observe if it starts up without any issues. If the iPad Pro powers on normally and the problem has been resolved, it is worth noting that the screen displays indications of water damage. Given the customer’s reluctance to replace the screen, the extent to which our repair can be carried out is limited.

How to Fix an iPad Pro that Won't Turn On - Short Circuit Detected by Rosin Dispenser

Conclusión:

The above steps outline a comprehensive repair guide for a water-damaged iPad Pro that won’t turn on. If you’re interested in learning more about iPhone motherboard repair, consider joining the course offered by Academia REWA. This course includes troubleshooting methods, demo repairs for common motherboard problems, and ongoing technical support to enhance your repair knowledge.

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