Struggling to keep the chosen settings

[Lala24]

Good evening,

I am new to touch screen technologies, and Xperia Z3 is my first experience.

Whilst well recommended, our relationship has been frustrating one so far.

The problem is that it won't keep the settings and displays the way I want it to.

Whenever the tablet restarts, gets charged or connected to my main computer, it rearranges itself back to the state it was when I first got it - it changes the time, the brightness of the screen, the language, the time for screen saver and the number of panes with selected items in it.

Is there anything I can do to make this machine personal, so that it stays the way I want it to?

I thank ahead everyone who could help. 

Kind regards.

[Uliwooly]

@Lala24

Are you using a tablet or a phone? does it has a SIM card? 

[Lala24]

Hello @uliwooly,

I am using Xperia Z3 Tablet Compact without a SIM card.

Best.

[Uliwooly]

Do you have the wifi version or the SIM version?

[Rickard · Accepted solution]

From what you are describing, it sounds like you have been sold a demo unit that is not meant for sales or that your dealer have set your unit into demo mode.
Open Contacts -> [menu] -> Settings and then tap and hold your finger about a centimeter or so above home and back button. You should then see a button that allows you to enter a service code. Press it and then dial *#*#73556673#*#* and see if that helps.

[Lala24]

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@Rickard wrote:

From what you are describing, it sounds like you have been sold a demo unit that is not meant for sales or that your dealer have set your unit into demo mode.
Open Contacts -> [menu] -> Settings and then tap and hold your finger about a centimeter or so above home and back button. You should then see a button that allows you to enter a service code. Press it and then dial *#*#73556673#*#* and see if that helps.

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Thank You, Rickard

After dialling the number, the message shows "Retail store use ONLY" and warns me that photos, docs etc. will be deleted if I activate. I didn't.

Although the tablet does reverse itself back to its previous layout, time and language, it does not delete the documents or applications. It just cancels my preferences and moves my documents elsewhere every time it is restarted, charged or connected to the PC.

Do You think I should go back to that shop and ask what is wrong?

[Lala24]

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@uliwooly wrote:

Do you have the wifi version or the SIM version?

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I guess it is wifi - there is no place for SIM card.

Thanks.

[Uliwooly]

@Lala24

Repair it with PCC and report back

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[Lala24]

Thank You, Rickard,

I did deal the number, but, as I said, I activated nothing, nevertheless since that time my tablet has become very obliging.

I like it.

I charged it, I connected it to my computer, I switched it on and off, it updated itself and now for 2 weeks displays have stayed the same. I have no idea what happened, but it worked.

Thank You

[Rickard]

Glad to hear that 

This is not something i've heard of before but sounds like the demo mode was on and has now been disabled even though it said it was not enabled.

In case you should see this again i recommend that you take it back to the store.