What is cwm Recovery..!!!

CLOCKWORKMOD RECOVERY!

Clockwork mod recovery is the replacement for the stock recovery menu...
It was developed by "kaushik dutta".It features nandroid backup,it  can help in recovering the stock rom of the phone. The rom manager app may be used for installing CWM,it will overwrite the stock recovery.after installing CWM will act as stock revovery.
Unlike the stock recovery CWM can apply changes to stock rom and it is also able to completely replace the primary android operating system  i.e it can flash a new rom to devicr and CWM is commonly used for this purpose is only.
U can install by following methods

Method 1A: Rom Manager - Rom Manager is the original and official way to install ClockworkMod recovery by a .zip file. Download "Rom Manager" from Google Play, use the app to download the correct version of CWM for your phone (update.zip file), reboot into the stock recovery and choose the option "re-install package" TWO TIMES to temporarily load CWM from the update.zip file. This file needs to remain on the phone to load CWM when needed each time. DO NOT DELETE!

Method 2B: you can find and download the update.zip by yourself, place it on the phone in /sdcard/ and boot into recovery using the 3 button method, choose the option "re-install package" TWO TIMES to load into CWM. Once again the update.zip needs to remain on the phone. DO NOT DELETE!

Disclaimer:-- I would not be responsible for any damage done to your phone. Kindly try at your own risk......
Thank u