How to fix reboot problem on Sony Xperia Z.

The Sony Xperia Z, which is equipped with a bright, large screen and offers many attractive functions, is waterproof and dustproof. The design of the phone is perfect too; the thin and slim design makes it easy and convenient to hold. Overall, the 1.5GHz quad core processor, 1080 display, and waterproof feature make this smartphone great.
But unfortunately, some people have the problem of rebooting on their Sony Xperia Z. Many users have complained about the problem on the forum. According to them, their phone keeps rebooting for no particular reason.
If you bought the Sony Xperia Z then it is better to know the solution to the reboot problem on the Sony Xperia Z so that you can easily solve it if the problem occurs on your smartphone. Some of the possible solutions to this random reboot problem are explained below.
See also: Common Sony Xperia Z Problems and Their Solutions

Possible solutions to the reboot problem on Sony Xperia Z

Method 1:

Press and hold the Power button and Volume up button for at least 10 seconds. Release the buttons when the phone vibrates three times and see if the problem is solved.
Method 2:

You can try to solve the reboot problem on Sony Xperia Z by repairing your phone using Sony’s software. To do this, however, you must first download the PC Companion software, which is available from the Sony website. Download it to your PC, then go to Support Zone> Start> Phone Software Update> Start. If you already have the latest version on your phone, select Repair your phone and then follow the instructions given.

Method 3:

• Turn off your phone
• Take a small piece of paper
• Clamp the piece of paper exactly between the battery and the wedge of the phone
• Let the battery sit firmly in its socket.

If the problem was caused by incorrect placement of the battery, this method can fix the problem.
Method 4:

Sometimes this problem occurs when the battery pins are damaged. So check that the pins are properly aligned. If you find that the pens are not arranged correctly, try the following:

• Take a piece of aluminum foil
• Place the aluminum foil between the pins and the connectors on the battery to see if the problem is resolved.
  

  Method 5:

You can also try installing a custom ROM after rooting the device to see if this problem is resolved as sometimes corrupted stock software can be the cause of this problem which the Xperia Z reboots very often .
Method 6:

If the problem occurs after installing a third-party app on your device, it may be that this is the reason for the reboot problem. To check this, you need to start your device in Safe Mode by following the procedure below.

• First, touch and hold the power button.
• Then select the Power off option and keep pressing it.
• Safe mode will appear on the screen. Tap OK and the device will restart in Safe Mode.

Now check whether there is the same problem or not. If the phone behaves normally with no issues, then one of the apps is causing the problem. So the next thing to do is to uninstall third party apps until the problem is resolved. You can start with the recently installed apps. To uninstall apps:
Go to Settings> App> Swipe to the downloaded screen> select the app> Uninstall> OK and that’s it.

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