Diagnosing and Resolving a OnePlus 3T Not Turning On After a Complete Battery Discharge

If your OnePlus 3T is not turning on after a complete battery discharge, there might be several potential causes and solutions to consider. This article provides comprehensive guidance to help you troubleshoot and resolve the issue efficiently. Here are the steps you can follow:

Common Reasons and Solutions

Battery Protection

Lithium-ion batteries, such as those in the OnePlus 3T, have built-in protection circuits that prevent the battery from over-discharging. When deeply discharged, the battery may require time to respond to a charge, during which the phone might not turn on immediately.

Solution

It is recommended to leave the phone connected to a charger for at least 15-30 minutes before attempting to turn it on again. This allows the battery to stabilize and may resolve the immediate power issue.

Charger or Cable Issues

The charger or USB cable you are using may be faulty and not delivering the necessary power required for charging. Faulty chargers or cables can prevent the phone from charging properly, leading to a non-responsive device.

Solution

Try using a different charger and cable. Ensure the charger is compatible with your device and capable of delivering the necessary power. High-quality chargers are also recommended to prevent future similar issues.

Charging Port Issues

Dust or debris in the charging port can prevent a proper connection, leading to the phone not turning on.

Solution

Check the charging port for any obstructions. Use a soft brush or compressed air to gently clean the port and remove any debris. This can help restore proper functionality to the charging port.

Software Glitch

A software issue can occasionally cause the phone to boot up improperly, leading to the device not turning on.

Solution

Try performing a force restart by holding down the Power button and Volume Down button simultaneously for about 10 seconds. This can reset the phone’s operating system and improve its functionality.

Advanced Troubleshooting Steps

Battery Health

If the battery is old or damaged, it might not hold a charge effectively. This is a more serious issue that may require professional intervention.

Solution

If the above steps do not work, consider taking your OnePlus 3T to a professional for a battery check or replacement. Battery issues can be significant and may require specialized repair services.

Hardware Issues

More serious hardware problems, such as a malfunctioning motherboard, can also cause the phone not to turn on.

Solution

If none of the above steps work, it is recommended to consult a technician or the OnePlus support team for further diagnosis and repair. Detailed evaluations can help pinpoint the exact issue and provide appropriate solutions.

Additional Tips

Ensure that your charger is properly functioning and compatible with your OnePlus 3T. Your phone may be hard bricked if none of the troubleshooting steps work.

Steps to Follow:

Make sure you are using the original charger.

Plug the phone into its dash charger and try the following:

Press the power button for 30 to 60 seconds. Start the phone into recovery mode by long-pressing the volume down and power button simultaneously. Navigate to ‘Restart phone’ using the volume down button and select using the power button. If the first option does not work, try the same steps with the power and volume up buttons.

If your phone refuses to wake up completely, get another OnePlus 3 dash charger and try the steps again.

If all else fails, contact OnePlus support for further assistance.

By following these comprehensive steps, you should be able to diagnose and resolve most issues preventing your OnePlus 3T from turning on after a complete battery discharge. For more detailed troubleshooting and assistance, consider reaching out to professional services or the official support team.