Backup and Restore your Android phone with ClockWorkMod Recovery

As we known, many advanced Android users like to customize their own devices, like installing new custom ROMs, flashing updated firmware and upgrading system. Undoubtedly, it is always better to make a backup before all that conduct you make in case whatever and whenever disaster strikes.
Such a backup is also called as Nandroid backup, including the whole system data, your personal information, apps and other individual data saved on your device. Many different ways can be used to backup your current ROM, and ClockworkMod recovery is one of the most favorable methods. It becomes more and more popular among Android users as you can make a backup anytime and anywhere with ease. So, here let's figure it out how to backup and restore your Android phone with ClockworkMod recovery (CMW recovery mode).

Backup your Android System
Step 1: Boot your Android phone into ClockWorkMod recovery mode. Different Android devices have different ways. For Samsung Nexus 4, you should press and hold "Volume up" key and "Power" when powered off.
Step 2: Press "Volume" key up or down to select "Backup and Restore" option, and then tap on "Power" button to confirm.
Step 3: Select "Backup" by pressing "Power" key now. It will start backing up your Android system to SD card automatically.
Step 4: Once completing the backup process, restart your Android phone. The backup file will be saved in a "clockworldmod" folder on your SD card. Check for it and rename it for use later.

Restore your Android Phone
Step 1: Similar to the step one above, boot your device into CWM recovery mode by using "Volume up" and "Power" buttons.
Step 2: Select "Backup and Restore" in the same way.
Step 3: In the submenu, use volume up and down key to choose "Restore" and confirm it by pressing "Power" button.
Step 4: The process will begin at once and finish with a note "Restore complete".
Note: If you want to recover all the personal settings in your apps, you can select "advanced restore" when you come to step3 talked above, and then choose "data.img". But it doesn't works for all Android devices. You may have a try.

Well, this is it. You will not spend more than 3 minutes to complete the whole backup or restore process. It helps you recover everything perfectly without any quality loss. You won't miss it. Also, you can click here for more Android information.

How to Restore a Wet Cell Phone

Dropped your cell phone in water? Don't panic so early. Even if your wet phone seems dead, there's still a good chance to recover it as new. But you have to act fast, because the longer the water stays inside, the greater the possibility it will ruin your phone. Depending on the kind of water, the degree of water damage and the time your phone was submerged you may be able to repair your wet phone. As water damage varies from case to case, we put the cases into three situations:
1. The phone fell into water when it is power-on;
2. The phone fell into noncorrosive liquid when it is power-off;
3. The phone fell into unclean water with power on or fell into corrosive liquid, sticky liquid or other unclean liquid whether it is power-off.

Here is my advice for the three different situations:

In the first situation, you usually don't need to take apart the phone.
1. Cut the power as soon as possible by removing the battery.
2. Shake it dry to get the water out, but be careful not to drop the device. If water drops remain inside the screen, there may be marks on it when it's dried.
3. Put it under the desk lamp, light or other slight heat sources to let the moisture evaporate slowly. This process requires more than six hours. Be patient. Mind that do not use strong heat source such as hair dryer, which will screw things up-it could warp internal components and melt adhesives.
After the three steps, generally, your cell phone can work normally after you switch it on.

In the second situation:
1. Shake your cell phone to get all the water out.
2. If there is no mark on the screen, deal with it according to step 3 of the first situation.
3. But if the cell phone is stained severely, don't tackle it in that way. Although it can make the electronic circuit work normally, the screen may not please to the eye. You can send it to the nearest maintenance department to handle it, or take it apart to dry it by yourself. (If you have poor hands-on skill, you'd better leave that to the professionals.)

In the third situation:
1. Take the battery out as soon as possible to cut the power.
2. If it fell into corrosive liquid (e.g., seawater), flush it with flesh water immediately or put it into clean water to dilute the internal corrosive liquid before it dries.
3. Disassemble the device as soon as possible, but be careful.
4. Clean it with alcohol or phone-washing special water.
5. Assemble. You can do it by yourself or leave the whole pack of parts to the maintenance point to dry it and assemble for you.

Wait at least a day or two before switching your cell phone on to see if it works.

Did it work for you? I am not sure that this will work in your case, but it is worth a try. With your timely action, your wet cell phone may be restored as new. Good luck!

How to Deal with iMessage Failures on iOS 7

iOS 7 publicly released a month ago and brought iOS devices users great wonders as well as surprises. While, many iOS 7 users recently report the problem that iMessage on their devices fails to work, like going unsent or not received from other iOS devices. Maybe you are one of these guys encountering this trouble as well.
Apple Company has realized the iMessage bug. They told the Wall Street Journal that a new updated version---iOS 7.0.3 is coming up soon to fix the bug, but the public revealing day is not confirmed. Some speculate it will be released next week. Whatever, before the new update version, let's find some way to help you out of the iMessage failure and make your device work well as before. The tips below may be helpful.

1. Go to your "Settings" < "iMessage", and turn off iMessage then.
2. Turn to "Settings" < "General" < "Reset", and tap on "Reset Network Settings".
3. Go back to "Settings" < "iMessage" and restart iMessage.
You can also try to restart your iDevice to see if it works. Or try turning off Wi-Fi and turn it on later. If they all don't help, then, keep calm. Turn off your iMessage and restart it after upgrading to iOS 7.0.3. The problem is just temporary and it will be tackled pretty soon.

Check here to read more about info about iOS and Android.

The Analysis of Fingerprint Recognition Function of iPhone 5S

Today Apple published iPhone 5S/5C formally，meanwhile fingerprint recognition function of the phone has been confirmed ——it is time to say good bye to MyKeyLock and put your finger on the Home key when unlocking the iPhone. It will be tested whether such a new technology can trigger a revolution in the realm of mobile security, first of all, let's see how it works.

Electro-optic Fingerprint Recognition Technology

There are two major technologies in the realm of fingerprint recognition that we need to know——electro-optics and electric capacity. Electro-optic scanner is almost the same as a traditional scanner, both of which light the concave and convex texture of the sample and then capture into black and white photos by using CCD camera——the concave is black while convex is white. After scanning, the computer program will compare the distribution of cross points called 'detail', between the scanning photo and the existing material. If there are enough 'details' matching, user's identity will be confirmed and the permission will be conferred. But Apple does not use this technology.

Capacitive Fingerprint Identification

A more sensitive capacitance is used in iPhone5.It relies on a set of tiny capacitance element array. Each element width is less than a fingerprint. These elements include two conductor plates separated by insulating layer.

When you put your finger on the capacitance scanner, the finger bulges can cause some conductor plates connected, which comes into being loop and generate electric current, and the elements under the bulges remain separated. After that, the system will analyze the voltage generated by each element to judge which is in the concave and which is in the convex. Combining the data, the scanner will generate a fingerprint photo. It is similar with the one using electro-optic method but more accurate. The another advantage of the capacitance scanner is that it needs a real fingerprint instead of mere a distribution picture of light and shade, which makes it harder to deceive.

Harder to Decipher for Thieves

This technology is easy to use when it is demonstrated in the press conference. As soon as you slide down your finger, your fingerprint data will be put in and the phone is unlock .But the reality is more complicated. It is still not clear that whether this function can run perfectly if the finger is dirty or the weather is cold. Anyway it is a much more difficult job for thieves to decipher the fingerprint recognizer than the phone code.

Data Security

Apple said they would save the users' fingerprint data in their own phones instead of in the servers of Apple, which lowers the risk of data being stolen through Internet. So far，just in terms of fingerprint recognizer its safety is still high.