I want to know what a device cooler is and what does these coolers do with respect to smartphones? Is there an app that can be classified as a device cooler? Can one get an Android application software which could serve as a device cooler for smartphones and tablets? Rockson Barnes is my name from Cameroon. Thank you.

I purchased a new Samsung Galaxy S5 that comes with Android OS. Few weeks later, my friend bought a new Galaxy S5 too. But I notice that his device has the latest updates and it comes with several new features. I want to know if there's a way that I can update mine. If so, please tell me the step-by-step instructions that I can follow. Thanks.

I recently saw an additional setting on my android phone the other night. I tried to test it but to no avail. What is the google wallet? I heard it is similar to Apple pay. So it is an app to pay with your phone. Is it usable on all android phones or on specific ones?

I am currently looking to install Ubuntu on my nexus 4. I have checked the site and it is on the approve list of devices that can support the software. Are there any risk in changing the software type on my phone? Can it have any effect on the hardware?

Hi guys, I am in great trouble. I have a Sony Erickson Xperia ray and recently all the contacts have disappeared from it and I really need help. Is it possible to the contacts? I had a lot of important contacts in there…  Please help me! 

I have a smartphone powered by Android 4.4 Kitkat and my boy deleted all the contacts on the phone and I'm having a hard time talking to my friends. Is there a way I can regain my contacts back on Android 4.4. If yes, how? If no, is this feature added in the latest Android OS?

I really need an application which can produce a very sharp sound. I have many things to do with the sound but for now, I want only the source of sound. I'm looking for such an application which can produce very shrill sound as a ringtone. Is there any solution for me?