Smartphones have become the most popular devices in the world. Whether smartphones are android driven, they use windows mobile operating system, or iOS,  people love them. Smartphones are replacing personal computers day by day.

Although smartphones are powerfull devices, with so many functions they can coope with, there still are many things that bother their owners.

Different brands of smartphones run on different types of operating systems, so each model has its own secrets.

We offer you some of the most searched tips and tricks, or problems solutions, for the most popular smart phones.

General smartphone tips and tricks:

 

10 best iPad and iPhone apps for planning your holiday
100 Best Android Apps of 2013
Android Ice Cream Sandwich tips and tricks
Android Jelly Bean tips, tricks and hints
Conserve Your Smartphone Battery
iOS 6 tips, tricks, and secrets
Taking Better Photos With Your Smartphone
Security Tools for Your Smartphone

Smartphone tips by phone model - please pick your model: 

 

Blackberry Z10
Google Nexus 4
HTC One
HTC One X
HTC Touch HD 
iPhone
iPhone 5
Nokia Lumia 620
Nokia Lumia 820
Nokia Lumia 920 
Samsung Galaxy Note 2 
Samsung Galaxy S3
Samsung Galaxy S4
Sony Ericsson Xperia Arc S 
Sony Xperia Z
Windows Phone 7
Windows Phone 8

The limited edition white Nexus 4 smartphone has already sold out in the US, just three days after it launched.

The American Google Play store is currently displaying the irritating temporarily out of stock message for the 16GB version of the limited edition white Nexus 4.

Generating strong reminders of the huge stock shortage for the original black Google Nexus 4 handset at launch, many would have hoped Google and its manufacturing partner LG had learnt from their mistakes.

However, the 8GB version of the white Nexus 4 is still available, though it’s worth remembering that the smartphone doesn’t have a microSD card slot to expand that memory base.

The black Nexus 4 is still available in both 8GB and 16GB varieties too.

Due to be arriving in other territories, including the UK, soon, LG and Google will have to fix their inventory issues pretty sharpish to avoid another worldwide Nexus 4 shortage.

Google Nexus 4 Features

The Google Nexus 4 smartphone packs identical specs whether consumers opt for the black or limited edition white handset. It has a 4.7-inch WXGA IPS screen with 1280 x 768p resolution display and 320ppi image density.

Protected by Corning Gorilla Glass 2, the Nexus 4 is powered by a quad-core Qualcomm Snapdragon S4 Pro CPU with 2GB of RAM. Weighing 139g, it is 9.1mm thick and offers NFC, Bluetooth and Wi-Fi connectivity.

Packing a 2,100mAh battery, the Nexus 4 has an 8-megapixel camera in the rear and 1.3-megapixels up front. Running Android 4.2 Jelly Bean, the Nexus 4 runs the vanilla version of Android for ultimate customisation options uninhibited by an additional UI.

In the UK, the 8GB version costs £239 and the 16GB is £279, meaning the SIM-free price is more akin to a mid-range handset, despite its high-end specs.

There's a new smartphone in the Japanese firm's stable and it's arrived in the form of the Sony Xperia M.
We've already seen Sony launch the Xperia SP, Xperia L and flagship Xperia Z this year and the triplets have now become quads with the new baby of the range.

Sony is keen to point out the Xpera M arrives at "a new price point" for the firm, although it fails to tell us what that price will actually be. What we do know is it will be available worldwide from Q3 this year.

Spec-tacular?

The Sony Xperia M isn't going to cost you the earth, although don't think that means it skimps on specs with a 4-inch 854 x 480 display, 1GHz dual-core processor, Android 4.1 Jelly Bean and 5MP rear camera with HDR mode.

It's not all good news however, with the puny 4GB of internal storage actually only giving you 2GB of available space - although there is a microSD slot - and the VGA front facing snapper isn't going to give you the best mug shots.

A common theme with Sony handsets of late are their vast array of connectivity options and the Xperia M is no different boasting Wi-Fi, aGPS, Bluetooth 4.0, NFC, DLNA and a microUSB slot, plus there's the choice of single and dual-SIM variants.

Strong on paper

There's a 1750mAh battery housed in the 124 x 62 x 9.3 mm chassis, which comes in black, white, purple and yellow hues, and at 115g the Xperia M shouldn't be overly cumbersome.

So on paper at least, the Sony Xperia M is shaping up to be a decent contender at the bottom end of the market, but without knowing the price or having used the handset we'll reserve judgement for now.

While far from legitimate, parts reportedly from the iPhone 5S hint at a new shape for the iPhone.

These pics come from Weibo, which has played host to a number of leaks over the years, and show the parts compared to their two predecessors' versions, the iPhone 4S and iPhone 5.

The SIM tray is now a golden colour, hinting at a wider range of colours – although it could as easily be simply a clarification of the standard silver by opting for a two-tone effect.

What's more interesting is the internal stuff, which for the most part is dramatically reduced in size compared to what's come before.

This could mean a few of things: the new iPhone 5S will be a whole new design, something that will reboot the franchise in the face of strong Android competition; space could be being made for new internal components (an updated camera and NFC), or Apple is just making it all a bit lighter and the iPhone 5S will look the same as the previous model.

When's it coming?

The iPhone 5S release date isn't set to be any time soon – traditionally it will show off the new software first and we haven't even got to 20 June when the updated iOS 7 software is set to be shown off.

It's most likely we'll get a new iPhone in September of this year, as that's the time Apple has seemingly settled on for nabbing the most visibility with smartphone users, while also making sure it's got a strong product in the run up to Christmas.

Or these pictures could all be bogus and Apple will make the iPhone 5S out of reconstituted banana. You never know, these days.