[ROM] Install Stock Android 4.2.1 on Kindle Fire

Launched more than 1 year, the tablet 's low price Amazon has made ​​tablet market world entered a new phase. Although the configuration is not really as strong as the new tablets released recently, but you can absolutely install the latest version of android 4.2 .1 on the Kindle Fire through his AOSP ROM version was developed by hashCode member on XDA.

ROM version works pretty smooth, the basic features work well, the interface is pretty modern Android 4.2.1 on the same Nexus 7 . But there are still some features not working well as bootanimation, 4.2 swype-style keyboard , photo sync, USB camera support but will be fix in the next update.

If you want to install this ROM version for the Kindle Fire your follow the instructions below:

Note:

• Instructions below exclusively for Amazon Kindle Fire, the application for other devices can lead to unwanted results.
• Guide is for general reference, our guide will not guarantee correct operation of the particular circumstances.
• Up ROM is direct intervention into the system will exist a certain risk to your device, we do not assume any responsibility for the risks that may occur on the device.
• Reading all instructions before proceed.

Requirements:

• Amazon Kindle Fire and the 1.4a running FIREFIREFIRE Bootloader install TWRP 2.2.x linux You can set the flash file by the following: s mirkit-v2.1-TWRP2.2_COTR2.1.zip 
• Backup all personal data such as applications, communications, SMS, MMS, wifi password ...
• Rechargeable battery for the device at least 60%.
• Download the following files on your computer:
  • 4.2.1_R1 Android ROM
  • Gapps 4.2 Jelly Bean

Install Android 4.2.1 for the Kindle Fire:

Step 1 : Download the zip file on the computer.

Step 2 : Copy the downloaded file is up 2 memory card tablet

Step 3 : turn off the tablet, disconnect the computer.

Step 4 : Start the Kindle Fire into recovery mode (Press the Power button to power it on and when you see a triangle on the  screen , press the Power button again to enter TWRP recovery)

Step 5 : Create a backup Nandroid backup for the current ROM version.

Step 6 : Clear the cache and data ex-ROM version: Wipe> Factory Reset and wipe cache

Step 7 : Select Install tab and select settings turn order ROM and Gapps files copied onto a memory card in step 2.

Step 8 : Restart the computer table, the first reboot may take longer than usual.

Top 5 scanning software for Android tablets

Virus and software increasingly powerful spy on Android devices and major threat to users. To avoid danger from viruses and malware are besides pay attention to the operation of the application before installing the tablet of your Android indispensable antivirus applications. Here are 5 anti-viral software should preferably be free for the tablet Android

Avast Free Mobie Security

Free antivirus software is the most popular Vietnam today by good performance and do not take lightly your machine's resources. Avast Free Mobie Security features provide security such as virus scanning tool, security consulting, web shield, the management application and optional anti-theft function.

Once installed, the program will automatically scan all applications and devices will then switch to protected mode real time of it. According to many websites, this technology is the best free antivirus software for Android tablets with higher detection rate.

Download Avast Free Mobie Security here

AVG Mobilation Free Antivirus

Like Mobie Security Avast Free, AVG Antivirus is also considered one of the best free software for desktop and the user therefore should not doubt the reliability of AVG antivirus for Android tablet.The current version for tablets running Google's operating system is also equipped with great features such as malware protection, real-time AV scanner, data backup, task killer, app locker, local ...

Download AVG Antivirus here

Zoner Mobile Security

Zoner Mobile Security is a proactive scanning engine, optimized for mobile phones and Android tablets, with features anti-spam, anti theft data protection designed for real-time, not affect the speed of the phone.

With Zoner Mobile Security, users can use handheld devices that are no longer his concern about the potential risks as well as privacy rights have been violated again. Users can be safely while protecting interface internet banking, public WiFi network connection, transfer email Email or shopping online.

Download Zoner Mobile Security free here

Lookout Mobile Security

The basic functions of this software include protection of malicious attacks, contacts backup, alarm and remote positioning for both phones and tablets. Upgrade to the Pro version for free using 29.99 USD / 1 year, users will have more protection browsers , lock and erase information from a distance.

Software was granted a separate account on the website and backup storage of images and call history. If you have trouble losing machine, users only need to log in to your account to conduct data recovery for your mobile device.

Download Lookout Mobile Security here

Free Norton Security Antivirus

Norton Mobile Security is a great antivirus software downloads with high number of users on theAndroid Market . The software includes a number of interesting features such as anti-theft system and remote control devices of users.

And Symantec's Norton Mobile Security is a wonderful application that allows users to lock and delete the data on the handset of the remote user by text message or email. Even the user can proceed to lock the SIM card thief can not use the SIM to spend money in your account.

Download Norton Mobile Security  here

Self rescue Android device fails and 'death'

As Android devices have serious errors or even can not boot up, the safe mode and restore the status quo devices will help to save your "darling" of her.

Safe Mode (Safe Mode) quite useful for Android users overcome these fundamental errors.However, if your device encountered many serious bugs that machines can not boot the operating system, then restoring the status quo for such equipment at a new factory (factory reset) is the right thing to do.

Note that after reset the device to its original state then all personal data, photographs, video ... saved on the phone memory will be lost. Therefore, to prevent situations phone or tablet for your Android was "dead" and not in the operating system, then you should store data on memory cards and regular backups.

Here are the steps to save Android devices using their faulty:

Boot the device into Safe mode

In the first case, if the device is not in the operating system when booting in the normal way, try booting into Safe Mode. We do not yet have a general way to apply to the entire Android devices when booting into Safe mode is not the operating system. Although Android Open Source Project project Google has integrated this way for the general version of Android , but device manufacturers seek to hide it.

Thus, in addition to searching on Google for the keyword "Boot Into Safe Mode On + device name" (name is the name of the device or tablet device is used), such as "Boot Into Safe Mode OnSamsung Galaxy S III ", then you can try to apply some of the following ways:

Method 1 : With the majority of the tablet and Android phone today, can hit the override button and two volume after pressing the power button and keep during the boot process.

Method 2 : Press the Menu key and pressing the boot device (can be applied to the device hard Menu key).

Method 3 : This method applies to the current devices have touch-sensitive keys. Hold down the Menu key when the LED light, and then released when LED is off, press and hold to the light again. You have done very meticulously and do not press other keys to the upside could be in Safe mode.

In the second case, despite the many errors that the user can not use the device, but you can still boot into the home screen (Home screen), then apply the procedure below:

With the equipment used ICS ROM ( Ice Cream Sandwich ) or Jelly Bean, in the home screen, you can press the power button pressed until cool option off (Power off) appears. Then, press the Power off option overrides (or Shut Down) until the message "Reboot to safe mode" appears.Finally, click OK to launch the device in safe mode.

Confirmation message in safe mode in interface Vietnamese and English.

With the AOSP ROM, such CM10.1 be customized based on the Android 4.2 Jelly Bean, you press the power button pressed, click to select "Reboot" in the menu that appears, select OK to start the machine in Safe Mode reboot .

In safe mode, install applications, and external factors such as malicious code ... will be disabled and the OS will only install utilities available and is considered "clean". Therefore, the user easily determine the cause of the error is due to start the machine and fix.

Restore the operating system to its original state

In the case of safe mode does not help to better your equipment, use the "factory reset" to reinstall the original operating system as new when shipped.

Step 1 : First of all, make sure that the device has been turned off completely.

Step 2 : Press the button pressed to assign devices to access the Recovery mode. The specified node depending on the equipment line, but there are 3 basic groups:

- Nexus 7 and most of the equipment: volume up button + volume down button + Power button.

- Motorola Droid X: Home button + Power button.

- The capture device hardware buttons: volume up button + Camera button

Step 3 : When the device screen lights up, release the buttons. If done properly and successfully, or the phone screen will display tablet Android robot logo is "ripped" and the operation instructions.

Interface Start (Start) of the Recovery mode.

Step 4: Use two volume keys to move up and down between the options, select "Recovery Mode" and press the power button to reboot the device into recovery mode to its original status.

Use the volume keys to navigate and power button to select.

Wait a few seconds, the device will reboot and the Android robot icon with red warning symbol appears.

Step 5 : You keep pressing the power button and press the volume up key, screen Android system recovery options appear, move the volume control to select "wipe data / factory reset", press the power button to activate.

Select "wipe data / factory reset" in the Android system recovery interface.

Select "Yes - erase all user data" to accept erased all data stored on the device.

If there are air condition bracket, press the power button pressed until the computer restarts. Once finished, your device will be reset is complete and no harmful by the application conflicts, malicious code or other causes. Finally, you can reset the machine and start using.

Helping phones and tablets with Android running smoother Greenify

Along with the increasing development of applications on Android phones and tablets becoming more and more of you are confused by the dozens and underground applications running in the background. These applications take up ram memory and CPU that your device becomes sluggish heavy, especially for devices with low and average configuration.

Android users have a lot of ways to solve the application runs in the background and the background. One of the methods most frequently used applications are task killer to shut down or freeze applications. However, the task killer app can usually just turn off the instant application, some applications will automatically reboot the machine causing serious. Another method is to usesoftware like Titanium Backup to freeze apps but when you freeze will not be used until the application freezes the application cancel.

Greenify developed by XDA member Oasisfeng on resolved issues in the method disable intelligent applications. Software disable but not completely freeze applications, devices always helps smooth operation while the necessary applications can still function normally. You can choose any application from the list of running applications. The application will be disabled but can still be used immediately whenever you need.

This way you can completely disable the application runs in the background is not necessary, not only to help equipment operate smoother, but also contribute to improving the battery life and device longevity.

Greenify equipment was required Root and running android 3.1 and above for tablets and android 4.0 or higher with the phone. You can download and install for free for your device on the link below.

Method Bootloop fix on Android devices

Bootloop is a bug that most android users know. This is not an error by the Android operating system, but it's causing a consequence of the open nature of Android. With an open operating system, you can install yourself comfortable by the user ROM development applications or things you love attractive. That's where your android device Bootloop most error prone.

If the device is using stock Android ROM, the risk of error is very low. But when you try to install any files that its not as ROM, MOD, or Themes, the incidence of error is quite high. The main cause of the error is due to the installation Bootloop, intervention programs will result in system instability and crashes in the startup process. Hence the phenomenon boot loop automatic restart on Android devices.

Really there is nothing to worry for this error is that they make you feel upset during use, but it can make use of the new android feel fear because they think their machine is broken. So in the post Vietnam Android will guide you how to fix this phenomenon:

Reason Bootloop cause errors on Android devices

There are several reasons typically cause problems on Android Bootloop. First you need to consider changes on Android devices has made ​​it occurs machine. For example: You are Bootloop after installing the new ROM, or when conducting recovery backup or install a software that does not by its (3rd party software)? Some cases occur when the wrong settings file.

The solution to repair and fix Bootloop

Reason 1: After Up ROM or install software to use 3rd party tools (via Samsung Odin)

1. When the power button is not working so Bootloop, pull your phone battery and wait 30 seconds, then reinsert.
2. Launch Recovery Mode on Android device, it is also known as Android System Recovery (ASR). Learn hardware phones and tablets to recover keystrokes to boot in recovery mode.Keystrokes phone features of the Samsung Galaxy as Volume Up + Home + Power key tablet also is Volume Up + Power key. Users need to press the key on at the same time. If you are a hands on HTC, you will need to first boot in HBOOT by pressing the Volume Down and Power buttons together and then navigate using volume recovery Rockers.
3. After restarting your device in Android System Recovery, scroll down wipe data / factory reset using the volume button and volume rocker or choose using the power key.
4. Done in the process, let's wipe the cache with the same steps above.
5. Finally, when you perform a wipe clean, return to the main menu and reboot the system equipment is completed.

This will help overcome the Bootloop up in case the ROM firmware.

Reason 2: After Up ROM or installing a new ROM.

1. When the power button is not working so Bootloop, pull your phone battery and wait 30 seconds, then reinsert.
2. Start the recovery mode on Android devices. The process is the same as in reason 1.
3. When you custom ROM Up means that you can install custom recovery. (Assume that the solution you use CWM recovery or ClockworkMod recovery.)
4. Then to Advanced
5. Select Wipe Dalvik-cache
6. Go to Mounts & Storage
7. Select Wipe / cache
8. Once all have been made in full and returned to the main menu and reboot system equipment.

In some cases, there may be errors Bootloop after full implementation of the above steps. So you can do the following:

1. Start phone in CWM Recovery
2. Go to Mounts & Storage
3. Select Wipe / cache
4. Restart your phone.

If you are using TWRP recovery, select Wipe and then Advanced and then select Wipe Dalvik Cache, Cache and Wipe Data before.

Reason 3: Setting the right to use the wrong file

The Android operating system is dependent on the right to use the correct file, if you use the right to adjust the wrong file will risk Bootloop error. Some files right that you should know:
_644 (RW-RR) (quite famous in the right file, it exists in the system / app, / system / framework, / system / etc, / system / lib and allot of separate files).
_755 (RWX-RX-RX) (used primarily for system / bin)
_777 (RWX-RWX-RWX) (Use the scripts in system / etc / init.d and busybox files)

To fix it do the following:

1. Booting to CWM recovery or TWRP recovery
2. Go to Advanced
3. Choose the Fix Permissions and validation tasks.

Reason 4: After conducting a backup restore

If Bootloop happened because you installed a backup restore proceed to perform as the 2nd reason is.

Above is the best guide to fix Bootloop. If you can not fix it the best way that you should Up to the original ROM or using its software.