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Sony Xperia Z5 problems and how to fix them

The Sony Xperia Z5 is a well-rounded gadget with a top-notch camera and solid battery life, but it's not without its flaws. If you're dealing with a faulty Sony Xperia Z5, read on for our best tips on how to solve the smartphone's most commonly-known problems.

sony xperia z5 app drawer 1
Sony Xperia Z5 problems? We're here to help. / © ANDROIDPIT

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Shortcut to problem:

Sony Xperia Z5 won't turn on

Trying to turn on the Sony Xperia Z5 and instead being left staring at a blank screen is mighty annoying, but thankfully Sony suggests some fixes for this particular Z5 problem.

One potential solution is to try a forced shutdown. Open up the cover for the nano-SIM card and memory card slot, and using the tip of a pen or a similarly-sized object, press and hold the OFF button for a couple of seconds. The Sony Xperia Z5 will vibrate three times, after which you can release the OFF button. Try turning the device on to see if the problem is solved.

If you're still hitting a brick wall, it's worth trying a two-minute restart, which is done by pressing and holding the OFF button for around 120 seconds. Ignore any vibrations you feel during this two-minute window – only release the OFF button when the time is up. Plug the Xperia Z5 into a charger and, when you spot a charging icon on the screen, try powering it on.

sony xperia z5 front camera
If in doubt, reset. / © ANDROIDPIT

Sony Xperia Z5 has poor battery life

Trying to survive with a smartphone with poor battery life is a nightmare, but thankfully there are plenty of third-party apps around that might just save the day.

Greenify is one of the most reliable performance-boosting apps, and it's free to download, which makes grabbing it a no-brainer. The app puts programs into a state of hibernation to reduce the strain they put on the Sony Xperia Z5 when they're not in use.

It's worth noting that Greenify requires a rooted device to work at its very best, but there are plenty of features tucked into the app for non-rooted users.

If you're not convinced by Greenify, there's a whole host of alternative solutions that are worth taking a closer look at. It's possible to squeeze more out of the Sony Xperia Z5 if you activate STAMINA mode, for example, which disables Wi-Fi and mobile data while the screen is turned off.

Ultra STAMINA mode takes things a step further by limiting everything except 'core tasks' such as the ability to send and receive calls and texts. Reducing screen brightness or removing live wallpapers also makes an impact.

Sony Xperia Z5 touchscreen isn't working

The touchscreen on the Sony Xperia Z5 may be affected by custom screen protectors, so if you have one, it's worth removing it to see if it's the cause of the problem. If not, Sony says that excessive heat can also affect the Sony Xperia Z5's display. 

sony xperia z5 play station
Make sure your screen protector isn't causing trouble. / © ANDROIDPIT

As we mentioned above, manually resetting the Sony Xperia Z5 using the button near the memory card slot can work wonders. As an added bonus, you won't lose any settings or personal data by trying this out.

Using Sony's own Xperia Diagnostics application, it's possible to carry out a test to see if the phone identifies a problem itself. From the Sony Xperia Z5's home screen, head to Settings > About phoneDiagnosticsTest. Follow the on-screen instructions and await results with crossed fingers.

The free-to-download PC Companion app is a great resource for resetting the Sony Xperia Z5, so we recommend you grab the tool yourself and browse through its Repair menu. Sony notes that content stored on an external SD card, such as photos, videos and music, is not deleted when using the software.

Sony Xperia Z5 phone calls sound bad

Some Sony Xperia Z5 owners have noted a drop in audio quality during phone calls, which can sometimes be resolved by adjusting sound enhancement features.

sony xperia z5 calling
A faulty SIM can ruin audio. / © ANDROIDPIT

Before you adjust the audio settings, though, try restarting the Sony Xperia Z5 and to see if that solves the problem. On top of that, check your network signal strength and ensure your hand (or screen protector) isn't accidentally covering the microphone or speaker.

To set the call audio equalizer to normal, head to SettingsCall Equalizer. From there, tap Normal and then see if you notice any changes in quality. To turn off slow talk, head to SettingsCall. Drag the on-screen slider to the left.

If you're still having trouble, try swapping out your SIM card to see if doing so fixes the issue. It might be that your existing SIM is damaged and is therefore affecting your calls.

Sony Xperia Z5 keeps freezing or lagging

If your Sony Xperia Z5 is freezing or lagging, trying out Safe Mode might help you to identify the problem. The thinking here is that an application you recently downloaded may be having an impact on performance.

To enable safe mode, turn off the Sony Xperia Z5 and then press and hold down on the power key until you feel a vibration. When you see the Sony and Xperia logos, press and hold the volume down key until Safe mode appears on the screen.

When you activate safe mode, only applications that shipped with the device load up. If you notice an instant improvement in performance, it's likely something you downloaded is doing the damage. If that's the case, get rid of some recently-downloaded apps or run Sony's PC Companion tool.

sony xperia z5 camera mode 3
A laggy smartphone is an unhappy one. / © ANDROIDPIT

Sony Xperia Z5 not detected by computer through USB

If you're trying to connect the Sony Xperia Z5 to your computer and things aren't going your way, the first thing to do is check the cable itself for damage. Even the slightest damage to the cable can cause syncing issues, so try another cord if you can.

It's possible to manually check if the Sony Xperia Z5 is set to recognize a USB connection. Head to SettingsXperia Connectivity > USB ConnectivityDetect USB device.

Another potential solution to this irritating problem is to restart your computer and update your USB drivers. To update the drivers, access Sony's PC Companion tool and check for updates from there.

androidpit USB 3
Keep your USB drivers up to date. / © ANDROIDPIT

Sony Xperia Z5 has no network coverage

If you're experiencing issues with network coverage on the Sony Xperia Z5, your first mission should be to reselect a network mode by heading to SettingsMore Mobile networks. From there, tap Preferred network type, then select a network mode. Experimenting with these settings and then restarting the phone can do some good.

It sounds obvious, but having Airplane mode activated will prevent the Sony Xperia Z5 from receiving network information. Ensure this mode is turned off and make sure the same can be said for STAMINA mode. When activated, STAMINA mode pauses mobile data and Wi-Fi connections.

Contacting your network provider is the next step if you have further questions.

sony xperia z5 front display 1
Contact your network for coverage information. / © ANDROIDPIT

Many other Sony Xperia Z5 problems can be resolved by using Sony's PC Companion tool, which we've mentioned several times above. We recommend you run the software yourself before you contacting Sony over the phone.

Are there any other Sony Xperia Z5 problems that we haven't covered? Do you know the solutions? Let us know in the comments section below and help each other out while you're at it.

38 comments

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  • Dear all,
    I am facing very serious issues with my Xperia z5 premium, 5 month back my mobile fell down and I get replacement of lcd. After that I am facing mention below issues :
    1-Heatup: after 4 to 5 minutes running of YouTube, mobile generate too much heat and close the application. Same using of camera my mobile get too much heat and shut the application.
    2- My network drop the data signals 📶 and I need to switch on/off the data every time.
    Please help me to sort out these issues.
    Thanks

    • Georg Seebode
      • Admin
      • Staff
      3 months ago Link to comment

      I doubt there is very much that we can do about that. Where did you get the screen replaced? Was it by an official retailer or just a normal shop? To me it sound like something else was damaged when you dropped your phone. You can either a) go back to the shop where you got your screen replaced and tell them about your issues or b) get in touch with sony and tell them about your software issues

      • Dear Georg, thanks for your message, this is my major mistake that I go to the normal repairing shop and get repair, I will go to the main Sony repair center in Dubai area.

  • I m facing problem with since last software update...
    Ringer is not audible and i face sam problem with music and vedio too...

  • I have a Sony Xperia Z5 (model E6653) Since i've bought this phone, i've experienced several problems with it. First of all, But this isn't my main problem, the phone would restart, at seemingly random times. I've tried safe mode, and never found a fix for this, so i gave up. The second problem: the phone would freeze, with half of the screen displaying white and red, static pixels. It would then proceed to restart. And my most recent problem that i seek to fix is that: The damn thing won't turn on. About 2 days ago, i was at 90% battery, and it just shut off. That's it. And it didn't turn back on, all day. I went home, and tried charging it, and to my surprise it started charging, i turned it on, and it had 57% battery. It happened the next day. And again today, except today, the recharging it trick didn't work. Now it won't turn on, INDEFINITELY. I've tried restarting it, in the nano sim area, and the 2 minute restart, and even opening the back of the phone up, although that undermines my warranty. I searched the web, and still cannot find any way to fix this. If anyone could reply quickly, and fill me in on whether this thing is dead or not. That'd be great. Sony... The phone looked great, camera is amazing, but i think your priorities are wrong. You need to fix your problems, not make new ones.

    • Also, the front facing camera was damaged, and shows frantic white lines that race across my screen, it overheats, and becomes extremely uncomfortable, And has a low battery life, although i keep it on stamina mode, and don't overcharge it.

  • it collapses and freezes and get black screen then it starts again from the beginning with Android Welcome screen,
    this is normal,
    Sony does not want to help me
    my shop does not want to help me

    please help me

  • MegaNyans 8 months ago Link to comment

    Thank You!!! The "Open up the cover for the nano-SIM card and memory card slot, and using the tip of a pen or a similarly-sized object, press and hold the OFF button for a couple of seconds" worked like a charm, Nowhere else had any info and the next option was sending in for repair... you made my day Charlie M. from 8 months ago <3

  • cnc 8 months ago Link to comment

    after latest update my phone wont turn on at all, tried all tricks above with power off button etc wha to do

  • This is by far the worst phone I've ever had. Not buying a Sony's phone again in my life. After using Samsung Nexus family for many years, a LG G4 and a couple of Galaxy phones, this is by far a scam. Unconfortable, dark screen, touch-screen way too sensitive, NOT IP68 complaince as Sony claims, battery takes forever to charge to 100%. It's a rip-off.

  • hi i just got z5 when charging it keeps turning off and showing a filling up battery is there any way to stop this

  • Hi, I'm from Argentina I want to tell my story, travel to Spain and buy the Z5 6653, after a few days of use I saw the device too hot even being in the pocket of my pants, the battery did not last even 10 hours and hurt me a micro SD card. I went to "mediamark" and I changed the Z5 in the act. Today I am in Argentina again, but I have new problems with my new Sony Z5, the camera button does not work, if I get to use the flashlight it starts flashing to the point that appears to be damaged and dark brown the LED and finally I have many problems to detect OTG flash drives, disconnect them alone.

    I want to comment further that I had a Z3 and soak it in the sink you income water display, so sony recognized me guarantee, that is why in waiting warranty I bought the Z5 and look for everything that happens.

    Beyond all I want to say that the Z3 and Z5 devices had were some amazing terminals, I guess sony should have lowered production costs. the result, many guarantees.

    my current Z5 can not send it to Spain by warranty for costs in Argentina sony I do not recognize anything.

  • Hey, i've got an xperia z5 compact but my front camera just doesn't work, i tried total reset to the Original software, didn't work either. so i don't know how to fix this... does somebody know the answer?

  • Jason O. Apr 19, 2016 Link to comment

    Have had Z5 for a couple of weeks, upgrade from my Z1. Reasonably happy except for the fact that often when I screen-lock it and put it in my pocket it comes to life. A couple of times it's actually dialled someone from my address book. If this persists I'll assume it's faulty and return.

    • G K Apr 28, 2016 Link to comment

      Yeh, I have the same problem, if I put it in my pocket with the screen towards my body it does all sorts of wierd things like dials numbers, launches apps, goes into flight mode, last one was it turned the flash light on. Solution so far, always put it in the pocket screen facing out, if you forget you'll soon know it !

      • See this happened for me too.. I was also blaming my phone for this but its actually my mistake! Probably yours too! So the place the mistake happens is when you press the lock screen twice with very short intervals of time! Like when yu just pressed tocheck time or notifications. So dont do that coz this happens because of the fact that both unlock(finger print scanner) n wakeup are in same button. Coz when yu first press it woud've already in the process of unlocking before yu ve pressed again! Try it yourself! Double press(fast) the lock button aka fp scanner., to yo surprise it still unlocked! Took me a month to realize this.

    • true!

    • It's possible that this is caused by the Tap-to-wake function. Disabling this functionality may help alleviate this problem. Go to Settings > Display > Tap to wake up

    • You guys needs to disable the double tap wake up screen mode.

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