2016-03-09 01:03 AM
2016-03-09 01:28 AM
Welcome to the community,
In most cases this is caused by the proximity sensor and it being covered. Do you have a screen protector that you have added to the device or maybe a case, if the proximity sensor has anything to close to the sensor it will turn the screen black as it thinks it is an ear.
2016-03-09 01:31 AM
does the problem exist when you are in safe mode? https://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/td-p/34800
can you run the diagnostics to see if the proximity sensor is working? http://support.sonymobile.com/global-en/xperiae4dual/userguide/Running-diagnostic-tests/
have you tried repairing with PCC? http://support.sonymobile.com/gb/tools/pc-companion/
if still the problem persist: i suggest to have your phone checked at your local service center: http://support.sonymobile.com/global-en/contactUs/
2016-03-16 03:48 PM
2016-03-16 05:20 PM
@Ammukhtar I'm very sorry to hear that. I suggest that you try what Hampus suggested above. If that doesn't help then I'm afraid that your phone is in need of service. Please contact your Local support team for information on how to proceed if it comes to that.
@Jess4 Sorry for the late reply. If none of the previous suggestions solved this for you then your phone should get sent to one of our authorised service centers. Your Local support team can provide more information on how to do so.
2016-03-18 10:44 AM
2016-03-21 09:55 AM
2016-03-30 07:46 AM
2016-03-31 01:01 AM