Proximity Sensor locks touch screen

[TalLavi]

Hello, I got a Z1C, the screen broke and I replaced it with a new funcioning one, but the problem is that whenever the proximity sensor notices that something (ear, hand, pocket) is closing in on it it does its function of locking the touch screen but it wont release it.

meaning if the proximity sensor senses something is near it it will lock the touchscreen but it wont release it, not unless I restart the phone by pulling the sim card out/in.

This is very annoying seeing as whenever I pull it out of my pocket / make a phone call I gotta pull the sim out and in again.

I tried changing screen, sent the phone to a lab who said that the sensor is perfectly fine and even hard reseted the phone, nothing works!

is there anything I can do? any drivers related to the proximity sensor?

thanks in advance,

Tal Lavi.

[Uliwooly]

Do you have anything covering or partially covering the proximity sensor

[Thommo]

With regards to pulling out the sim card always try holding volume up and power buttons at the same time until you feel a vibration - This will switch off your phone

[TalLavi]

No, Nothing.

I can recreate this effect of the screen locking by placing my finger on the sensor and clicking the power button to lock screen and then when I click it again to open it it gets stuck.

Any way to fix this? maybe a driver of an older version or what not?

Its impossible to keep going on like this, is it possible to disable to sensor? and if I will what will happen? you only really use it when you answer a call and I can just click the power button instead.

[Thommo]

I can't be sure this will work but you could try performing a system repair as this will often fix issues - This will factory reset your phone

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 onscreen 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

If that fails then you need to either return your device to the place of purchase or contact Xperia care http://www.sonymobile.com/global-en/support/contact-us/

[TalLavi]

I already did a factory reset, not like this though.

Ill give it a go