Fixed – the AC Power Adapter Type Cannot Be Determined

The rechargeable battery is an essential part of the laptop. With the battery, the laptop becomes portable and has much freedom to move. However, when charging the laptop, you need an AC adapter.

For Dell users, there is a problem when charging the laptop, because you may come across the error that the AC power adapter type cannot be determined. When coming across this error, you can choose to ignore it and press F1 to continue to boot the computer.

But, ignoring this error is not the final solution. So, how to remove the error that alert the AC power adapter wattage and type cannot be determined?

How to Fix the AC Power Adapter Type Cannot Be Determined?

In this section, we will show you how to fix the error that AC power adapter type cannot be determined.

Power Cycle PC

In order to fix the issue that the AC Power adapter type cannot be determined, you can choose to power cycle your PC.

Now, here is the tutorial.

1. Remove all external peripherals (flash drives, printers, external hard drives) from your computer.
2. Unplug your charger, turn off your laptop and remove the battery.
3. Hold down the power button for at least 30 seconds.
4. Then put the battery back in, charge it again and boot the computer.

After that, check whether the error that the AC power adapter type cannot be determined is fixed.

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Change the Adapter

In order to fix the issue that the AC power adapter type cannot be determined, you can check whether there is a problem with your adapter. To do that, you can check whether the adapter works on another computer or another adapter works on your PC. If yes, it proves that your own adapter is abnormal and you need to change it.

If you are sure that your adapter is okay, then the problem could be anywhere. For example, it could be caused by the loose soldering in the charger brick, a broken pin, fired capacitors, or a broken connection, and so on.

In these situations, in order to fix this problem, you need to change a new adapter.

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Disable Power Warnings

If you are able to charge your computer normally, but you often receive the error message that the AC power adapter type cannot be determined, you can choose to disable the power warnings. But you need to pay attention to that this action does not mean that the error message is removed.

Now, here is the tutorial.

1. Reboot your computer and press the hotkey once you see the logo appears to enter BIOS.
2. Once in BIOS, navigate to the Advanced tab and then go to the option of Adapter warnings.
3. Next, choose Disable.
4. Save changes and exit the BIOS.

Once all steps are finished, reboot your computer and check whether the issue that the AC power adapter type cannot be determined is popping up when charging the computer.

To sum up, in order to remove the error that the AC power adapter type cannot be determined, this post has shown some solutions. If you come across the same error, try these solutions. If you have any better idea to fix it, you can share it in the comment zone.