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Here are some common Huawei P20 Pro problems and how to fix them

By Simon Hill


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If you’re able to get your hands on one, the Huawei P20 Pro is sure to impress. It has an eye-catching design, a long-lasting battery, and one of the best cameras we’ve ever encountered, featuring an unprecedented three lenses. As impressive as it is, this phone is not perfect and we’re not just talking about the fact that it isn’t on sale in the U.S.

We’ve gathered together some of the most commonly reported Huawei P20 Pro problems for you here and we’re offering up workarounds and potential fixes to help you get your issues sorted out.

Problem: Random reboots

There are a couple of threads at the XDA Developers forum that mention unprompted reboots. For one person it was happening repeatedly in the Gallery app, but for others it seems to be a bit more random when it occurs. The P20 Pro will suddenly shut down and restart itself with no apparent cause. This is an issue we’ve seen from time to time on a lot of different phones.

Possible fixes:

  • Try wiping the cache partition to begin with. Turn your Huawei P20 Pro off by holding down the Power key and then tapping Power off. Once it has shut down, hold down the Power and Volume up keys together until you see the Huawei logo, release the Power key, but keep holding the Volume up key until you see EMUI on screen. You can use Volume down to highlight Wipe cache partition and the Power key to select it. When it’s done use Volume up to highlight Reboot system now and the Power key to select it.
  • If the rebooting problem persists after this, we’d guess that an app or setting is to blame. Either way, the easiest way to test this hypothesis is to factory reset the phone. Back up everything first, then go to Settings > System > Reset > Factory data reset > Reset phone > reset phone. When it’s done, try setting your phone up as new instead of restoring the backup and test to see if the rebooting problem returns. If it doesn’t then you can start reinstalling apps selectively, watching out for a recurrence of the reboot problem.
  • If you do a factory reset and set the Huawei P20 Pro up as new and it still reboots unexpectedly, then it’s time to contact Huawei, your carrier, or your retailer.

Issue: Battery draining too quickly

We were particularly impressed by the battery life of the Huawei P20 Pro, which boasts a 4,000mAh battery. It should easily last you a day and beyond and two full days between charges is not out of the question. Yet we’ve seen threads at the XDA Developers forum and Android Central forum about disappointing battery performance. The battery is big enough that you shouldn’t really have to bother with workarounds, but we have a few suggestions anyway. We also have an idea about a possible fix.

Workarounds:

  • You can always go to Settings > Battery and turn Power saving mode or Ultra power saving mode on, but they do cut some background operations and slow performance.
  • You can save some battery life by going to Settings > Security > Screen Lock & Passwords and toggling Always display information
  • You might also consider going to Settings > Battery to toggle on Darken interface colors.
  • Take a look in Settings > Battery > App launch and consider tweaking some settings to save power.
  • Go to Settings > Display and change Screen resolution from FHD+ to HD+ or set it to Smart.
  • Set the Sleep setting in Settings > Display as low as you can tolerate.

Potential fixes:

  • Back up everything first, then go to Settings > System > Reset > Factory data reset > Reset phone > reset phone. If you restore a backup after the reset and the problem returns then try factory resetting again and set the phone up as new, it’s possible that a setting or app in your backup is causing the problem.

Glitch: Touchscreen latency or lag

We’ve seen a couple of posts, most notably at XDA Developers forum about touchscreen delays or lag when people are scrolling or trying to do small, precise movements on the screen.

Potential fixes:

  • Some users have suggested going to Settings > Smart assistance > Motion control to turn things like Smart screenshot It’s possible these gestures are tweaking how the touchscreen responds. You should also make sure that Gloves mode is toggled off in Settings > Smart assistance.
  • A few people say that a software update has fixed the issue for them. Check in Settings System update > Check for updates and see if there’s a software update available.

Workarounds:

  • Try going to Settings > Display and change Screen resolution from FHD+ to HD+ to see if that makes any difference.

Problem: Slow charging

Huawei’s SuperCharge system can take the battery from zero to full in about 90 minutes, but some people have been having trouble getting fast charging speeds. There are a couple of threads at XDA Developers forum about this.

Potential fixes:

  • Make sure that you are using the cable and charger that came with your Huawei P20 Pro and plugged into a working wall outlet.
  • If your Huawei P20 Pro got wet, then it might be limiting charging speed as a safety feature. Give it some time to dry out or place it in a bowl of uncooked rice to draw any moisture out, then test again.
  • If the problem persists contact Huawei, your carrier, or your retailer.

Issue: Microphone not working properly

We have seen a few people complaining about the microphone not working so they can’t be heard by the other person during calls or sometimes when recording audio or video messages. There are threads at the XDA Developers forum on this topic.

Workarounds:

  • Hold down the Power button and tap Restart. This seems to work at least temporarily for most people. It’s possible that the problem is being caused by using Private Space, using the USB-C headphone adapter, or by using Bluetooth for audio, so you may want to restart after any of those activities.
  • If you have any apps that use the microphone, then consider removing microphone permission or uninstalling them and test to see if that resolves the issue. You can check via Settings > Apps & notifications > Permissions.

Possible fix:

  • Hopefully, this is just a software bug and will be fixed. Check in Settings System update > Check for updates and see if there is a software update available. You may also want to open Play Store, tap the hamburger icon (three horizontal lines) at the top left and tap My apps & games > Update all.


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