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The most frequently asked questions about Sony Xperia C4 from our audience.

Evgenii Kuzmin

Repair engineer for the last fifteen years. Huge experience in the repair of electronic devices and gadgets.

Sony Xperia C4
YouTube_Question

Sony Xperia C4
I need help my Xperia C4 needs a screen repair because a red mark or r...

I need help my Xperia C4 needs a screen repair because a red mark or red spot is showing when I view dark backgrounds on the phone so I think it might of been pressed.
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YouTube_Question

Sony Xperia C4
No problem if I take it out and put the battery back

No problem if I take it out and put the battery back
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YouTube_Question

Sony Xperia C4
i have sony c4 dual since 2yrs now... and i have problem with camera f...

i have sony c4 dual since 2yrs now... and i have problem with camera focus... it doesn't focus now on any object ...what i can do?? this problem occurs, when my phone has touch issue so i give it to the service center.... then i get back my phone in 2week... the i see this problem (camera focus doesn't work)... plzz suggest any solution...
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YouTube_Question

Sony Xperia C4
i have problem in mobile network not available for C4 in my phone set...

i have problem in mobile network not available for C4 in my phone setting i can see sim1 and sim 2 but name only . for example i can see sim 1 is vodafone but no signal . sometime the signal come and go again . can you help me ?
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YouTube_Question

Sony Xperia C4
Please help my device when /errace regular weather on the screen pulse...

Please help my device when /errace regular weather on the screen pulses of lines in the middle of the screen i reply C4 5333
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YouTube_Question

Sony Xperia C4
I have a problem with the touchscreen, it bug a lot. Do you think it c...

I have a problem with the touchscreen, it bug a lot. Do you think it can resolve the problem if i change the screen, like in this video?
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YouTube_Question

Sony Xperia C4
Hi,I need help too. I have a Sony Xperia C4 Dual and sometimes, when I...

Hi,I need help too. I have a Sony Xperia C4 Dual and sometimes, when I'm trying to make a video full-screen or it starts an add while I'm doing something , the screen is blocking. In the video case,it's getting green and it's turning off and then on. On the add case,the image is blocking and stays there while the sound is still working,and after the add ends the phone is turning off and then on again. I think it has problems whit the screen,but I don't know what to do whit it like this! Please help!
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