C4 has manufacturing defect. They are repairing the touch problem for the devices in warranty knowing well that it'll occur soon again and this time we'll be out of warranty and out of luck. It is a hardware manufacturing fault. No amount of software updates to marshmallow or anything will fix this defect. The only solution is to fight with Sony for replacement. This phone is a blot on Sony.
I also have experience of malfunction of the touchscreen. I even have brought it back to sony center twice.... its not good
Xperia c4 android lollipop have some touch issues, so try to upgrade to marshmallow 6.0 soon if you are facing to touch issues.. there is no internal problems in the phone... I also faced some touch issues when using Android lollipop those days there is no marshmallow update released for Xperia c4, the only thing I done is keep my phone on safemode for 30min. after that I didn't get any touch issues later. try to update your Xperia c4 to marshmallow using pc companion..
The ones who have written that you do this and your touch problems will be solved have posted with vested interests. Possibly they are sellers trying to flip their phones. DO not go for Xperia C4. It has a inherent touch screen issue due to manufacturing issues(akin to galaxy note 7) which will never be solved. The only solution is if sony acknowledges the problem and agrees to replace our phone with another model.
Bought this phone in march and since last month the touch screen is not working properly. Already tried to come to Sony Service Center here in Indonesia on 31st of oct but they said they need to order the screen and it will take 2-3 weeks but until now i havent heard anything from them. Been a fan of Sony phone but this time they are really disappointing. SONY MOBILE INDONESIA, IF YOU READ THIS PLEASE SORT IT OUT!!!
My front camera flips the selfish...kindly someone give me a solution
Most problems listed below are easily solved by resetting or reinstalling the whole OS by using the Xperia Companion software with a computer. Connect your phone with the usb cable, run Companion software and carefully follow the prompts according to your selection.
Worst phone and worst customer service ever! ! I BOUGHT my c4 Dec 2015, after system update last May2016 my phone screen is unresponsive. I decided to went to nearest sony service center here in our area for them to check my unit cause its still under warranty.
Almost 6mos now but my phone is still under repair. :(
i have a Phone Sony Xperia C4, i take care a lot but the problem is it is hard to touch and not able to touch... i don't know what the problem is... can you help me how to fix or what should i do, i have spent lot of money to buy this unit.. it is almost 1 and a half year that i used it. my location is on the province of Aurora part of Central Luzon in the Philippines... Hope you will receive this comment and hope you will help me to solve this problem.. thank you..
Anonymous, 10 Nov 2016I have recently been having trouble with my C4. The battery depletes very quickly. When i plug... moreEven i face the same problem here. and some problem with 4G sim connectivity too..
Do not upgrade to Marshmallow if you can help it - had this phone for almost a year and for the most I have enjoyed using it minus some bugs/hanging here and there. Without a doubt it hangs more on Marshmallow and Bluetooth signal also seems to have become worse where it skips every couple minutes.. incredibly obnoxious.
I have recently been having trouble with my C4. The battery depletes very quickly. When i plug in the charger, it turns off. Also, the phone gets really hot at times while plugged in to the charger. Also the touchscreen has malfunctions at times.
I am not here to hate or advice people not to buy it, I'm looking for help with my device.
Nikz, 09 Nov 2016Sir I am a Xperia c4 user and having some problem regarding display as well as battery my phon... moreyes, update to marshmallow using pc companion.. marshmallow update increases battery life and fixed all the bugs and issues.
c4 user , 06 Nov 2016Dear ladies & gentle mens, some people spreading wrong/fake news , don't get caught for t... moreSir I am a Xperia c4 user and having some problem regarding display as well as battery my phone is not updated till now and is running on lollipop version so if I get my phone updated will that be helpful.
c4 user , 06 Nov 2016Dear ladies & gentle mens, some people spreading wrong/fake news , don't get caught for t... moreWhat about the camera, already updated my c4 to marshmallow then my camera, both rear and front, became blurry, ho can i fix it or any help, pls?
Dear ladies & gentle mens, some people spreading wrong/fake news , don't get caught for those. I'm using c4 about a year, no problems yet. working perfectly with superb music & good camera..
some people say there is a touch problem.. actually if there is a touch problem because of a software bug.. not a hardware fault. those people can update to c4 latest software android 6.0 marshmallow! using pc companion or wait until directly comes to phone.. c4 marshmallow update fixed all the bugs.. can use the phone smoothly and better.. I recommend to buy and enjoy Xperia c4!
Sorry I Have a question
C4 Dual or HTC One E8 ?
they are same at the price in my country
but i really dont know which is better
they are very similar to each other but with little differences
C4 has a little better camera (based on gsmarena photo comparison)
and as it looks has more powerful CPU but in comparison video clip that i saw Htc was faster ! maybe its because snapdragon
Htc has Quick Charge and more battery endurance
C4 is 0.5 inch bigger
Htc has boomsound which is perfect
Htc released android 6.0 update six months before Sony
so im really confused !
please help ! thank you !
Saurabh , 02 Nov 2016I dont know why people are spreading wrong news and posting wrong comments about c4...guys c4 ... moreI just bought only 2 day, the phone hot is really hot, camera error, and screen become black. I buy under warranty and the seller told me to change a new one and I prefer exchanging sony speaker! No one want to exaggerate but they just say what they meet.!