Black screen in calls on marshmallow

[ilkerbayulken]

i'm living this boring problem despite system repair...

sony must make a new uptade for choose this problem.

otherwise, lost of stamina mod is big sacrifice.

i'm 37 years old n z3c is the best phone i use until now; solve sony, solve

[Lori01]

My z5 is exactly the same. Had it a week. What's the point in screen protectors if you can't use your phone as a phone?! I refuse to accept this as a credible answer as if you want to trade your phone in it will probably have scratches therefor devaluing it. Another money making scam - sort it out Sony! If that's the only response I get tomorrow when I complain in store, they have lost my custom.

[s13822]

I wonder if it has something to do with Smart answering. I've had the same problem and when I changed it back to off then the phone seemed to act normal again.

It's worth a try...

[AnnoyedUKCustom]

I admit I haven't read all messages in this long thread but I post this hoping it might be useful to someone.

A few weeks I have started facing the problem of phone screen going blank during calls and not turning on again when I take it away from my ear.

I never had this problem before so I started thinking about what has changed in my phone recently and the only thing I could think of is that a couple of weeks ago I enabled the "tap to wake up" setting.

I ran some tests and my Z3C on 5.1.1 behaves like this:

- if "tap to wake up" is enabled the phone goes blank and stays blank even if I take it away from my ear.

- if "tap to wake up" is not enabled the phone behaves correctly (most times) and the screen is re-enabled when the phone is moved away from my ear.

So it seems that, at least in my case, the issue is related to the "tap to wake up" setting.

PS: I ran the ear proximity test and the phone vibrates all the time in both cases so maybe my theory is wrong and simply the sensor has started failing in the last weeks....

[cammyh78]

Hi hope you can help,

sicne the Marshmallow update, i have been having problems, when making a call the screen goes blank, i am unable wake up the screen so i cannot hang up the call if the person does not answer.

hope this can be answered 

[Biemo]

Had the same problem with my Z5 sudenly after 6 months. Tried everything posted here with no luck.

Finally did something that accidentally solved the problem. I went to Settings >> Display. Switched off the Adaptive Brightness. Made a test call, problem gone.

Out of curiousity, switched the setting on again. Problem did not come back, it stays away. Strange... But who cares. At least I can stay with this phone till the time come (and money of course) to replace my phone.

[Biemo]

Found more pattern:

- When a call is made while ear sensor is covered (i tested with finger), screen goes black. It does not return even though i lift the finger, unless the call is dropped for any reason. The next calls will always with this problem even if this time the sensor is not covered.

The workaround is to change the brightness level. Behavior always back to normal after changing brightness level. So it is not the adaptive brightness setting (I take back my earlier post).

Nonetheless, it is Sony issue either with the SW or low quality sensor that is short-lived. I would never get Sony for my next phones.

[vosg]

I'm having the same problem, no screen protector or LCD coming loose. The proximity sensor is all messed up since I got the marshmallow upgrade. Also have the microphone problem, I have to yell if I want to be heard during a phone call. Sick and tired of this crappy phone, I'm getting a Samsung.

[AnnoyedUKCustom]

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@AnnoyedUKCustomer wrote:

I admit I haven't read all messages in this long thread but I post this hoping it might be useful to someone.

A few weeks I have started facing the problem of phone screen going blank during calls and not turning on again when I take it away from my ear.

I never had this problem before so I started thinking about what has changed in my phone recently and the only thing I could think of is that a couple of weeks ago I enabled the "tap to wake up" setting.

I ran some tests and my Z3C on 5.1.1 behaves like this:

- if "tap to wake up" is enabled the phone goes blank and stays blank even if I take it away from my ear.

- if "tap to wake up" is not enabled the phone behaves correctly (most times) and the screen is re-enabled when the phone is moved away from my ear.

So it seems that, at least in my case, the issue is related to the "tap to wake up" setting.

PS: I ran the ear proximity test and the phone vibrates all the time in both cases so maybe my theory is wrong and simply the sensor has started failing in the last weeks....

---

Replying to myself to let you know that the "tap to wake up" trick that I mention above is not effective. I definitely still get the problem. I can also clarify that the issue is not related to Marshmallow since my phone is still on 5.1.1. This is most probably an issue with a cheap hardware component failing after just a few months...

[Jbarks]

This is because your front camera sensor is either covered with a glass protector or is faulty. I removed my glass protector and the black screen issue solved itself. Hope this helps

[Mahendthiran]

This is my second Sony. I used to own a Z3 and it just died on me. I have a Z5 now and the same problem exists. It seems to me that the software is not up to international standards.

My phone screen goes blank during a call and I have also removed the screen protector as well. The customer service at Singapore's Sony Service Centre located at Orchard Road is terrible and of low serviec standards.

I really regret switching to Sony. Previously I was using iPhone 4 and then later on Samsung Galaxy Note II. Although Sony has a good quality camera, it's basic function pales in comparion to those of Apple and Samsung.

I hope Sony works on addressing this software glitch rather than use sales gimmicks to sell their phones.

Terrible.