Xperia z1c sending text messages by itself!!

[111abc]

Today my Xperia z1 compact started sending txts to my contacts by itself. I cant see what whas sent buy I got a few friends asking why the **bleep** I was texting them that early in the morning.

[Phy]

That's probably a third party creating this issue, boot on safe mode and see if you experience the same issue.

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[Phy]

You can also repair your phone with Sony PC Companion 

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[SophiaW]

Hi 111abc, welcome to the community!

I agree with @Phy, boot the phone on safe mode to see whether you experience the same issue. If you do not then you can restart the phone normally and delete any third party apps you don't need/use any longer or just clear the data for your third party apps. If the issue is present in safe mode then run a software repair on your handset;

Note: a software repair will delete all user data, to back up your phone:

using PC Companion
1. Go to Support to install PC Companion on a Windows computer.
2. When installed, start PC Companion on the computer.
3. Connect your phone to the computer using a USB cable.
4. Click Start under Backup & Restore.
5. Follow the on-screen instructions.
(Exactly what contents will be backed up may differ depending on phone model.
You can view detailed information about this as you follow the steps in the Backup & Restore wizard).

using Bridge for Mac
1. Launch Bridge For MAC.
2. Select "Back up your Xperia device".
3. Select the data you wish to back up from your device (the windows can be expanded for more detail as below; then select "Next".
4. The backup will now be in process, do not disconnect the phone while this runs.

Running the software repair on PC Companion:
1. Install and open PC Companion then select Support Zone.
2. Phone Software Update.
3. Start.
4. Repair Phone
5. Continue
6. Accept data removal
7. Next
8. Wait for prepare
9. Select Phone
10. Follow the connection steps

Running the software repair on Bridge for Mac:
1. Launch Bridge for MAC without the handset connected.
2. On the Main Window select "Xperia > Repair Xperia Device".
3. Ensure the phone is charged and select "Ok" in the following window.
4. Select Continue on the following page.
5. Wait until the initialising step is finished the continue as below.
6 . Select your model of phone from the list that appears
7. Follow the connection steps that appear, ensuring that you are holding the relevant button down before during and after the connection phase until the update/repair begins.

Let us know how this goes.