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How to fix an iPhone 8 Plus that shows liquid has been detected warning after an update [Troubleshooting Guide]

One of the iOS 10 features introduced by Apple is a warning system that prompts users whenever liquid traces or moisture is detected in the Lightning port. The warning usually occurs when charging or when connecting the iOS device to a computer via USB connector or Lightning cable. The warning says, “Disconnect lightning accessory. Liquid has been detected in the Lightning connector. To protect your iPhone, disconnect this Lightning accessory and allow the connector to dry.” While you may have the option to Ignore this warning, doing so may likewise put your device at risk because it wouldn’t prompt you with such warning if it hasn’t detected any sort of liquid traces in the Lightning port in the first place unless the warning is triggered by a software glitch like an update bug.

Read on to find out what to do if ever you’ll be prompted with the same warning on your iPhone 8 Plus.

But before anything else, if you have a different issue with your device, visit the troubleshooting page we’ve setup for the iPhone 6s Plus. We list down every problem we address each week in that page so try to see if we’ve already addressed your concern before. If we did, try to use the solutions we suggested and if they won’t work, then you may contact us by filling up this form.

Verify and ensure no traces of moist in the Lightning/charging port.

While this iPhone is built to be water resistant, it’s not actually waterproof. So given the circumstances, it may still accumulate any sort of liquid damage when exposed to moist, water, or other types of liquid. What you should do then whenever you see this warning is to turn off your iPhone completely, remove the Lightning cable from the port and then thoroughly check the inner port. If necessary, let your iPhone dry for a while before charging or using it again.

Restart your iPhone (soft reset).

If the warning started to occur and reoccurs after installing a new update and you’re certain that your device hasn’t been exposed to any liquid type or moist, then most likely the liquid warning is triggered by an update bug. In this case, you can try a soft reset or restart your iPhone 8 Plus. Follow these steps to perform a soft reset/reboot on your iPhone 8 Plus:

  1. Press the Side/Power button for a few seconds until the Slide to Power Off prompt appears.
  2. Drag the slider to the right to turn your iPhone off.
  3. After 30 seconds, press and hold the Side/Power button until the Apple logo appears.

Alternatively, you can perform a force restart if your iPhone freezes when the warning occurs. It happens when the system is glitching due to an erroneous update installation. Here’s how it’s done, if necessary:

  1. Press and quickly release the Volume Up button.
  2. Press and quickly release the Volume Down button.
  3. Press and hold the Side/Power button until the Apple logo appears.

You may need to hold the button a little longer than 30 seconds for the system to boot up completely especially when it’s bugged.

Reset all settings on your iPhone 8 Plus.

Some updates may override your current settings automatically and when this happens there can only be two possible outcomes and that’s either good or bad. If for some reasons the update is inflicting bad outcomes as depicted by the liquid detection warning, then performing an all settings reset might be able to help especially if the problem is attributed to invalid settings. To try and see if this would help, follow these steps:

  1. Tap Settings from the Home screen.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select the option to Reset All Settings. This will delete all your current settings and restore the default values.
  5. Enter your device passcode to continue.
  6. Then tap the option to confirm reset.

When the reset if finished, your iPhone will reboot automatically but if it doesn’t, then you will need to manually trigger your device to restart. Just follow the above steps to carry out a soft reset.

Check for new updates to install.

If this appears to be a common issue and it’s already been escalated to Apple Support, then most likely iOS developers will issue a follow-up update containing the required fix patch. That said, check and see if there are new updates available for your iPhone 8 Plus with these steps:

  1. Navigate to the Home screen then tap Settings.
  2. Tap General.
  3. Tap Software Update.
  4. Wait for your device to scan for available software updates. If an update is available, backup your iPhone data for safekeeping then tap Download to instigate downloading of the update file. Make sure your phone is connected to Wi-Fi to get this done.
  5. When the download is finished, tap Install to implement that new update on your device

Reboot your iPhone after installing the latest update to apply the recent changes it brings.

Restore your iPhone 8 Plus.

If the error keeps occurring even if your device is completely dry or never exposed to any sort of liquid or moist, then it’s more likely a more serious system glitch that requires more advanced solutions. If it’s a post-update issue, then you can try performing an iOS restore in iTunes. You may opt to begin with the standard restore in iTunes, recovery mode restore, or DFU mode restore if necessary.

Follow these steps to perform a standard iOS restore in iTunes and restore your iPhone 8 Plus to factory defaults or from a previous iOS backup:

  1. While your iPhone is connected and recognized in iTunes, click the option to Restore iPhone to factory defaults and then set it up as new.
  2. If you want to downgrade or restore to a previous iOS backup file, you may do so by clicking on the Restore Backup in iTunes button and then select the iOS backup file you want to use.
  3. You may refer to the date and size of each backup and choose the most relevant.
  4. Finally click the Restore button and wait for the restore to complete.
  5. If prompted, enter the correct password for all your encrypted backups.
  6. When the restore is finished, your iPhone will reboot automatically.

Keep your iPhone connected to your computer after it reboots and then wait for it to sync with your computer. After the sync is completed, you may disconnect your iPhone from your computer.

If that doesn’t help, then you may resort to a recovery mode restore if not, DFU mode restore instead. A more detailed walkthrough on how to perform a recovery mode restore and DFU mode restore on iPhone 8 Plus is available on our Tutorials section. Feel free to refer to our guide if needed.

Seek more help

Again you can request further assistance from your service provider or Apple Support if you’ve already exhausted all possible means to fix the problem on your end but to no avail. There might be some other factors that trigger the liquid detection warning to keep showing on your iPhone 8 Plus that may still be unknown to end-users and only your carrier or Apple Support can deal with them. So give them a call and ask for help.

Connect with us

If you need more help with the use of certain functions and features of the new Apple iPhone 8 smartphone, feel free to visit our Tutorial Page. There you can find a list of how-to contents, step-by-step tutorials, as well as answers to FAQs regarding iPhone 8. If you have other concerns or encountered some troubles while using the phone, you can reach us through this form. Just be sure to tell us more details of the problem or device issue(s) you may have and we will be more than happy to assist you further.

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