天涯海角

My Web Home

Monthly Archives: 7月 2013

How to Unroot Your Android Phone

8036586_f520

Rooting isn’t Permanent

Rooting an android phone provides the user with a phone that is highly customizable and has unlimited possibilities.

Most people out there are afraid to root their phone cause of three basic reasons:

1. It Voids your Warranty : i.e once you have rooted your phone, nearly every company has declared it in their Terms and Conditions, that rooting your Android Phone will void or make your warranty null.

2. Getting your Android Phone Bricked : Sometimes whilst rooting, there is a possibility of your phone getting bricked, i.e your phone being completely dead. Till date this has never happened to me nor has it happened to anyone i know personally, though if you do a Google search, you will find out that there are methods to un-brick your android phone.

3. Unable to Unroot an Android Phone : This is absolutely false. Rooting an android phone is most definitely not permanent. Your android phone can beunrooted as easily as it can be rooted.

So as you can see, there is absolutely no need to worry about rooting your Android phone. Rooting your phone will provide you with features and possibilities beyond your imagination.

Unrooting Your Android Phone : Now for those of you who have rooted your Android Phones and need to unroot it cause of warranty issues or any other reason that you may have, well given below are two of the simplest methods to do so.

Before You Begin :

There are three simple but veryimportant things that you need to perform before you start or begin to unroot your android phone are :

1. Backup your Data : Backup all your data onto your SD (Memory) card or if your using just your phones internal memory, then backup all your data onto your PC.

Backup whatever data you feel is important to you such as Messages, Contacts (though these are usually synced with your Google account), Apps, Photos, Videos, etc.

Apps to help you backup your data are easily available for free on Google Play.

Or you could click here to see a collection of these apps.

2. Charge Your Phone : One of the most important things you need to do is charge your android phone to a min of 75% at least. You don’t want you phone going off during the unrooting process..

3. Download the unroot File : Just like how you downloaded the root file when you rooted your phone, similarly you now have to download the unroot file and most importantly place it in your memory card.

You can perform a Google search by typing the model of your phone followed by unroot file.

In case you are not able to find the file, then there’s no need to worry as you can use the alternate method of unrooting your android phone as given below :

 

How to Unroot Your Android Phone :

Method 1 :

1. Switch/ Turn off your Android Phone.

2. Now Boot your phone in Recovery Mode.

  • You can do this by pressing and holding the HOME and POWER button down together simultaneously .
  • Keep it pressed and don’t let go till after the Android boot logo comes up on the screen and the Recovery mode opens. You can now let go.
  • In the Recovery mode you gotta use the volume buttons to scroll up and down cause as a safety mechanism your touch screen won’t work.

3. Now, scroll down to the second option, i.e ” Apply update from sdcard ” and select it by pressing the HOME button.

4. This should open up your memory card displaying all your files. Now, scroll down and select the ” unroot ” file that you had placed in your SD card earlier. (In case you have saved it in a folder, then scroll to that folder, open it and select the file using the VOLUME buttons for scrolling and HOME button for selecting.)

5. It’ll now ask you to confirm the installation, say yes.

6. Once the installation has been successfully completed, go back to the main screen and select the ” Reboot System ” option.

7. Once your phone has rebooted, open up the app drawer and look for the Superuser icon.

If you don’t see it, then your android phone has been successfully unrooted.

See, it ain’t all that difficult to unroot your android phone..

Method 2 :

If the above method doesn’t work for you or in case you are not able to find an unroot file for your android phone, then don’t worry cause there is another method.

1. Download and install the app ” ES File Explorer “, it’s freely available on Google Play. It’s a file explorer used by people with rooted phones as it lets you access, modify and delete the system files that a normal explorer won’t. You may use any other file explorers for rooted android phones as well if you are more familiar with them.

2. Now, open the file explorer, select the options button on your phone, go to the section “root settings” and select ” Root explorer ” and ” Mount File System “.

3. Go back to the main screen of the app and select favorites in the left top corner of the screen and select the “/” symbol.

4. Now open the ” system ” folder and then the ” app ” folder and delete the ” Superuser.apk ” file.

Important: Do not delete any other file!

5. Now go back to the system folder and open the ” xbin ” folder and delete the following files :

1. busybox
2. sh
3. sqlite3
4. su
5. su-v1
6. su-v2
7. su-v3

Important: I repeat again ” Do not delete any other file! ”

7. Restart/ Reboot your phone and it should be unrooted once again.

Your Android Phone has now been successfully unrooted.

Nature: 指甲控制指头再生

小鼠和人类的指尖再生是哺乳动物器官再生的一个引人注目的例子。然而,这种能力是非常有限的:如果指头在超过指甲的地方被截掉的话是从不会再生的。 Mayumi Ito及其同事为这一过程提供了新见解。他们发现,控制小鼠指甲干细胞分化的机制直接耦合到其协调指头再生的能力上。位于指甲干细胞区域远端的指甲祖细胞在一个依赖于Wnt信号作用的过程中分化成指甲。Wnt信号作用的激发也是指甲再生以及吸引那些促进整个指头在切除后再生的神经所必需的。作者提出,指甲干细胞也许可用于为截肢者开发新的治疗方法。

 

Wnt activation in nail epithelium couples nail growth to digit regeneration

Makoto Takeo, Wei Chin Chou, Qi Sun, Wendy Lee, Piul Rabbani, Cynthia Loomis, M. Mark Taketo & Mayumi Ito

The tips of mammalian digits can regenerate after amputation1, 2, like those of amphibians. It is unknown why this capacity is limited to the area associated with the nail2, 3, 4. Here we show that nail stem cells (NSCs) reside in the proximal nail matrix and that the mechanisms governing NSC differentiation are coupled directly with their ability to orchestrate digit regeneration. Early nail progenitors undergo Wnt-dependent differentiation into the nail. After amputation, this Wnt activation is required for nail regeneration and also for attracting nerves that promote mesenchymal blastema growth, leading to the regeneration of the digit. Amputations proximal to the Wnt-active nail progenitors result in failure to regenerate the nail or digit. Nevertheless, β-catenin stabilization in the NSC region induced their regeneration. These results establish a link between NSC differentiation and digit regeneration, and suggest that NSCs may have the potential to contribute to the development of novel treatments for amputees.

doi: 10.1038/nature12214