What is ClockworkMod Recovery for Android? and how to use it?


ClockworkMod - also known as Clockwork and CWM name - is one mini operating system for phones and tablets running the Android operating system. It allows you to deeply intervene in the system to recover, install or modify those components that can not be done within the Android operating system is used. But now there are many different types of recovery mod but basically it is still used in the same manner as CWM.

Introduction to Android Recovery

All Android devices on the market distribution is one of the preset default Recovery (understood as the temporary rescue system). However, with this recovery (stock recovery), you can only perform one simple
operation as the recovery of state machines or factory install the official ROM released by the manufacturer.

The custom recovery version (custom) recovery basically replaces the stock recovery above, it is very much additional utility so you can customize a lot of things on your Android device. For example, you can install the official ROM and unofficial, additional applications, interfaces, kernel ... using the zip file. In addition, you can also return the computer to its condition at the new factory, partition memory card, USB connectivity right out of recovery mode, clear Dalvik cache and battery stats, fix permissions, management, backup and recovery system ... a lot of stuff in general. We will explore this in detail later in this section.

Introduction ClockworkMod

ClockworkMod recovery is one of the first to use the recovery is the most common way on Android devices. Developed by Koushik Dutta (also known as Koush) - who also write Android apps ROM Manager. You can find his information at this blog or at Twitter.

Install ClockworkMod

Depending on each device we will have a separate install CWM. Be careful, do not install themselves without successful delivery of information from people who have done it before.

Access to ClockworkMod

After successfully installed CWM, the access to it is very simple, can be accessed by applications or key combinations (depending on the computer model will have specific guidelines).

The function CWM

Suppose now you are accessing CWM 3.0.0.5 (the newer version is almost the same) and you will see a lot of different functions. Here we'll explore them together

Normally, you can move up and down between the keys function by increasing or decreasing the volume, choose one that functions by pressing the power button of the device. However, this may be slightly different on one of the devices.

1. Reboot system now - Restart the device

2. Apply update from sdcard - This function is used to install the ROM, kernel, interface ... 1 zip file named laupdate.zip, this file is located in the root folder on the memory card. When you select this function, 1 interface as below will appear, scroll down to the words Yes to the machine perform this task:

3. Wipe data / factory reset - This function will delete all user information as well as data on the machine temporarily. The machine will return to the state when a new purchase or install new ROM is finished. It also clears the data on the memory card's ext partition (we will mention later).

4. Wipe cache partition - This function allows deletion of data is not used for a long time. This operation is usually done before you install a new ROM, app, kernel or any similar things.

5. Install zip from sdcard - This function of the menu as shown below:

a. Apply / sdcard / update.zip
This function is similar to 'apply update from sdcard' above.

b. Choose zip from sdcard
Allows you to install from zip file with any name (not necessarily the update.zip). This file may be ROM, kernel, applications, interfaces, or anything that the creators want to update from zip file. This function is typically used when you want to install one ROM that you copied to your memory card before. When you select the function, you will be taken to the first screen allows you to find a location to perform zip file.

c. Toggle signature verification - Allows on / off the signature check in the application. When test mode is enabled, you will not be able to install the ROM not sign, but most custom ROMs are now of this type. If checked off, you can set comfortably.

d. Toggle script asserts - Ideally, you should not change anything here. These functions are rarely used, even I myself do not use the time and I do not really know much about it.

e. + + + + + Go Back + + + + + - Takes you back to the previous menu.

6. Backup and restore - Allows you to backup all data systems, all partitions inside the machine, in general all the way and amuse everyone in the phone memory and restore the backup. The backup will be stored in the memory card, the folder structure is the ClockworkMod / backup / xxxxxxxxx. This feature can be interpreted similar to the function of the famous Norton Ghost software on Windows. This function is useful when you want to backup the entire operating system to restore stability to one particular bad day.

a. Backup
Create a backup, this can take time, depending on memory capacity more or less, the pace fast or slow memory card. Average take from 5-20 minutes.

b. Restore
Lets restore a previous backup.

c. Restore Advanced
This function allows you to choose what recovery rather than recovered all the above. You can select partial recovery boot, system, data, cache and sd-ext partition partitions:

7. Mounts and storage

Allows you to perform tasks related to memory and memory card mounted as / mount breaks, format the memory. Be extremely careful with this function, especially of the format boot, format system, format data. Many hate when you have to cry ignorance in this area, the result that you can not boot anymore because of all system data are gone.

a. Mount / unmount / system, / data, / cache, / sdcard or / sd-ext
These functions allow to mount and mount the partitions off of memory, most of this functionality is rarely used to.

b. Format boot, system, data, cache, sdcard or sd-ext
As mentioned above, be careful with this function.

c. Mount USB storage
Allows you to connect to a computer USB mode even in recovery mode /

8. Advanced

The functionality here is hardly used except Wipe Dalvik cache, need to do before each install ROM. These are the main features:

a. Reboot Recovery
Lets just reboot CWM Recovery mode, this function is rarely used.

b. Wipe Dalvik Cache
Allows you to delete the temporary data of the Dalvik virtual machine (one form is customized Java virtual machine for Android). You should do this before the new ROM up to prevent unwanted bugs.

c. Wipe Battery Stats
Lets remove the battery information such as status, length of use ... use this function when the battery is not correctly displayed.

d. Report Error
Lets save the file notes of CWM errors arising on the memory card, you may report this error to the developer then CWM.

e. Key Test
Lets check the hardware key and the corresponding key code.

f. Partition SD Card
Allows you to partition your card in case you want to install the application entirely on memory card (with Link2SD software), especially in the form ext partition (which requires a ROM that supports ext partitions ), used as storage on low. This feature will allow you to choose the size of the ext partition, swap space (virtual memory 1 form, used to lower ram air) and conventional storage.

g. Fix Permissions
Edit the file permissions error on one computer memory, take them back to the default state. Useful in cases of Force-Closes fix.

Above is the main feature of CWM, hope you get the background knowledge in installing ROMs and more.