ZTE Axon 9 Pro Tips and Tricks

Android 8 (Oreo)
Phone: ZTE Axon 9 Pro
Factory OS: Android 8 (Oreo)

Have you updated your Operating System?
Then view tips for the most recent OS version(s): Android 9 (Pie)
Or view tips for all Android versions

Instead of the simple swipe gesture to unlock your phone, you can set a custom one which can be extremely difficult for a thief to guess.

From your homescreen, go to Settings – Personal – Lock screen – and security – Screen lock type and choose Pattern.

It is also a good idea to untick Use visible pattern. Then if someone is watching over your shoulder while you entering your pattern, it will be harder for them to remember the pattern.

If you have forgotten your unlock pattern, then after 5 unsuccessful tries a button will appear saying ‘Forgot pattern’. Press this and you will be asked to enter your Gmail username/password. The phone will then ask for a new unlock pattern. If you don’t have a Gmail account, then you will have to either call your carrier or factory reset your phone.

Sometimes you may need your screen to stay on when plugged in via USB.

To do this, Drag down your notifications screen and press Settings. Then under System, select Developer Options. Then check Stay Awake.

If you can’t see Developer options then you need to enable this. Go to Settings – System – About device and press on Build number 7 times. Developer options will now appear in the System section of your settings.

To enable or disable the vibrate function when you receive text messages go to the standard Messaging App and press More. Then Settings and then Notifications. Then select Vibrate.

If you don’t want to hear the shutter sound when you take photos, then there are a few things you can try.

Firstly, some countries have laws to force the phone to play these sounds. Assuming you’re not in one of these countries, then the first thing you can try is to go to the Camera App – Settings – Shutter Sound – Off.

If that doesn’t work, then you can try turning the volume of the phone down or put it in silent mode when taking photos.

The last option is to Root your phone. If you don’t know what that means, then it’s best not to attempt it unless you have thoroughly read about the process. Once Rooted, go to this folder on your phone: /system/media/audio/ui and rename the camerashutter and/or cameraclick OGG files to something else.

Alternatively, on a rooted phone you can use a Root Browser, to edit /system/csc/feature.xml and set the option to TRUE. Then you should be able to go to Camera App – Settings – Shutter Sound – Off.

When browsing on your phone you may notice images are quite blurry. This is because your telecom provider is compressing the images before they are downloaded on to your phone.

There is no way to prevent this, but if you have a WiFi connection nearby, then you can turn that on. This will mean that all browser downloads come through the WiFi connection, rather than the carrier, and your images will appear normally.?

This also depends on your service provider and data package.

If you want to conserve battery life, you can turn off the WiFi while the phone is asleep.

Pull down the notifications screen. Then long press on the WiFi icon. Then press the Menu or More button and select Keep WiFi on during sleep.

Locking your phone is a great security feature, but when you’re at home it’s normally not necessary.

A featured called Trusted Places enables you to bypass the lock screen when you’re at specific geographic places.

To set it up go to Settings – Lock screen and security – Smart lock – Trusted places. You can also set up the bypass to work when your phone is connected to specific Bluetooth devices such as Smart watches or Audio devices.

You can also override this (i.e. lock your screen when it is at the location). To override, just press and hold the padlock icon on the lock screen.

This may not work on all phones, models or networks.

If you see an insufficient storage available error, or find that you’re running low on your phone memory (not to be confused with your SD Card memory), then there are a number of ways to fix this.

This error can be very frustrating as it often means you cannot install new Apps, and some Apps may not even function properly because of this. We hope this guide is as comprehensive as possible, but if you find other methods, then please suggest them in the comments below.

The first step is to determine exactly what is eating up your phone’s storage memory. To do this pull down your notifications menu and select Settings and find Storage. It may take a while to calculate so be patient. From here you can see whether it is your Applications, Pictures, Audio or otherwise, that is causing the problem. Obviously, if it is photos or music, then the first step is to remove some of these (ensuring you do actually want them deleted of course!).

If it is your Apps taking up space, then you have a few options, as follows:

Uninstall Apps – Go to Settings – Applications – Application Manager and swipe to the ALL tab at the top. Then look at the top of the screen which shows how much free space you have. Often you will have very little Free memory, which is the cause of the error. From here, press your Menu button and select Sort by size. This will show you which Apps take up the most space and which will make the most impact by removing. Obviously don’t delete things like Gallery (which will remove your photos!), Internet (which is your browser), key Google Apps and so on. However if you have Apps you don’t use anymore, then uninstall them to free up space.

Clear App Cache (with an App) – For this method, you will need to download an App called Clear App Cache. However, this will only work if you can uninstalled enough Apps to free up enough space to install the App itself. Once installed however you can quickly clear the cache of all of your Apps, which should free up some space.

Create Cloud Storage Backup – You can also select to create back-up in Google drive. For that Go to Settings – Backup & Reset and turn Back up data ?ON? and add your back-up account (Preferably the same account from which you signed in on Play Store). Then open Google Account icon and from there you can select folders for which you want to create back-up, you can also set frequency of creating back-up e.g. daily, monthly or weekly etc. Now you can delete data from folders for which you have opted to create back, but before that please make sure that back up has been created. You can access these files by signing in to Google drive using you Gmail email and Password.

Clear App Cache (manually) – Apps such as Gallery, can sometimes generate a large cache (image thumbnails in this case) which can be cleared to free up memory. First, go to Settings – Applications – Application Manager. Then swipe from right to left until you’re on the ALL screen. Then press the Menu key and Sort by size. Then choose the largest App by pressing on it. Then select Clear Cache. Do this until you’ve cleared as much space as you can. ?

Dump your log files – This will only work on some devices, however it doesn’t cause any data loss. It simply cleans up your App log files. Go to your phone dialler App and press: *#9900# ? Then Select delete dumpstate/ logcat and hit OK.

Move Apps to SD Card (if you have one) – Settings – Applications – Application Manager. Flick from right to left until you get to SD Card. Then simply tick which Apps you’d like to move from Phone memory to SD Card memory.

Clear Browser Thumbnails – This one seems to be a bug in some versions of Android and/or some phones, but is a very quick and effective fix. Simply open your stock Android Browser, which is usually found by opening the Internet App. Then at the top right check if you have multiple tabs open. If you do, then swipe them off the screen one by one until you have none left. This can clear up hundreds of cached thumbnails which never clear unless this process is carried out. It has been known to clear several gigabytes of space for users that don’t close their tabs often. ?

Check folder/file sizes – The last method is great and involves installing an App called DiskUsage from the Play store. Once you install this it will show you which folders are the largest. You can then drill down to find out exactly what is consuming your precious space before deciding to remove the files or folders. You can also integrate the App with File Explorer Apps to easily manage your files. When it comes to removing files and folders it’s sometimes easier to do that by plugging your device into a PC and browsing the folders that way.

The phone has the ability to send quick response text messages if your phone is ringing but you can’t answer it.

To change these, go to your Dialler App and press the Menu or More button. Then select Settings – Call rejection.

From here you can add or edit your reject messages.

The Play store contains thousands of great Apps, but there are time that you want to restrict access to these Apps for whatever reasons. This can easily be done.

First, open the Play Store App and swipe from left to right to see the settings. Then press Settings and Content Filtering.

From here you can chose settings for Low/Medium/High maturity levels. Great for preventing access for young people.