How to install CWM recovery:Follow the steps :
1. Download SPFlashTool and extract it.
2. Extract CWMR_6003_A25_droidtricksqvga.zip
3. Run Flash_tool.exe.
4. Load scatter file extracted from CWMR_6003_A25.zip and you will see "recovery" ticked.
(don't click PRELOADER" & "DSP_BL)
5. Then, goto "Options" --> "DA Download All" --> Click on "Disable DA Download All". Now, you are ready to flash recovery...
6. Turn off your phone. Remove battery for some seconds. Put battery and attach usb cable to phone(don't turn on phone).
7. Now, Click "Download" in SPFlashTool.
8. Attach usb to computer... SPFlashTool will show a dialog box showing downloaded and a green circle. Close the SPFlashTool.
9. You are done. Disconnect usb.
10. Boot into recovery through 3-button combo (Volume Up + Home + Power).
11. Your CWMR is flashed
Download Sp Flash Tool