proximity sensor

[Moheb]

proximity sensor doesn't work in my z3  then i went to settings >about phone > diadnostics >test device > ear proximity  it doesn't work also 

i dailed *#*#7378423#*#* >service tests > proximity switch > it shows proximity switch off 

so what can i do? 

please answer

thanks.......

[Thommo]

Try a system repair as above not a factory reset

[Moheb]

how can i do it

[SomeQuickAdvice]

This might sound like a stupid question but are you 100% sure your proximity sensor did not recover after reset/reboot.

To test it, either go to service test in service menu and place your hand on the top of the phone.

Or make a call, make sure the phone is in upright position (important!) and cover the top of the phone.

[Thommo]

Try performing a system repair using PC Companion as this will often fix issues - This will factory reset your phone and erase all data so best to backup before you begin

Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)
Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the on screen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process

If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP

[Moheb]

i performed a system repair using PC Companion and it still doesn't work

[Thommo]

Sorry to hear this but you would need to either return your device to the place of purchase or contact Xperia care and have your device inspected http://www.sonymobile.com/global-en/support/contact-us/

[Moheb]

They told me that they will change the proximity sensor but the phone will not be water resistant any more do I have the right to change the phone with new one as I am still in the warranty period

[Bandolero]

Did you send it to the authorise service center? 

Repair or replacing an sensor shouldn't be effecting your water proof feature, unless if you send it to a 3rd party to repair that; then it may be a problem infact sony will not cover the warranty once is being repaired by a 3rd party.