In The World Of Android, Rooting and Later Modding like Trying New ROMs, Trying new MODs, Taking Backup and Restoring We need ClockWorkMoD Recovery (CWM) or TWRP (Team Win Recovery Project) to Do this all Operations.
As, Newbie Users in Flashing A ZIP Package or Those Who don't know Well about How to Use CWM, We have made it Clear Up to Certain point in Following Info and A Short Tuto-Video :
ClockworkMod Recovery (CWM) is a replacement recovery option for Android devices,Features included are Nandroid backup, adb shell, advanced update.zip options and file browser for choosing update.zip
Ways To Install:
1) ROM Manager Application From Play Store,Follow On Screen Instructions.
2) Get Update.zip file from Web (XDA Forums Basically) and Flash it with ODIN or any Other Flashing Utility on Your Windows PC.
Different Functions On CWM:
Reboot>> Restart Your Device after Performing Operations in CWM
Install ZIP From SD Card>> Install Flashable ZIP from Internal SD Card or External SD Card.
Install From Sideload>> Install Packages Via ADB (Android Debug Bridge) By Sending Files From Computer Generally.
Wipe Data/Factory Reset>> Wipe All Your Data Present on Internal Device.
Wipe Cache Partition>> Format Whole Cache Partition Containing Cache of Different Applications.
Backup And Restore>>
>>Backup Your Data | Backup Your Current Running ROM | Backup Your System
>> Restore Your Data | ROM | System Data Through Advanced Restore.
The CWM generated Backup is Referred as>> Nandroid Backup
Mount and Storage>> Mounting or Unmounting Partitions.
>> Advanced Consists Of Advanced Operations like Wipe Dalvik VM Cache that should be done after Installing ROM For Proper Functioning Of Device.
>> Show Logs and Fix Permissions
So,This are Operations that can be Carried out with Different Options
After Flashing ClockworkMOD Recovery, You may able to Root Your Phone For Further Changes or Modding (Rooting Will Void Your Device Warrenty) But CWM is the main Thing that Must be Installed on your Device else You can't Step Forward!
While Using CWM, You should be much Careful Handling it because if anything goes wrong, Your Device may be Bricked So,Always take A Backup through CWM Options of Backup on External SD Card (Nandroid Backup)
If anything goes wrong in performing any operation like Flashable ZIP not flashed Correctly,You may Simply Use Restore option to Restore Previous ROM Or Any Particular Data Files via Advanced Restore.
Always Put all Flashable ZIP packages in External SD Card For More Secure Way of Using ClockWorkMOD Recovery.
Happy Flashing and Using ClockWorkMOD Recovery !
Must See: Samsung Galaxy Grand CryoGate ROM