WiFi error after rooting Samsung Galaxy SL i9003 Solution

Complete Step-By-Step Instructions:
Step 1 - Download pda_bck_cf-root_universal_beta14fixStep 2 - Download ODIN v1.85 
Step 3 - Switch off your phone. Now go to Download Mode. How? Press and hold the Volume Down + Home buttons together, and then press the Power button till you see the construction Android robot and a triangle. Press Power again to confirm to enter into Download Mode.
Step 4 - Make sure you have your Galaxy SL USB drivers installed on your computer.
Step 5 - Open ODIN on your computer. Connect your phone to your computer while your phone is in the Download Mode.
Step 6 - If your phone is connected successfully, one of the ID:COM boxes will turn yellow with the COM port number. This step might take some time.
Step 7 - Now select the file pda_bck_cf-root_universal_beta14fix .
* Click on ‘PDA’ and select pda_bck_cf-root_universal_beta14fix
Step 8 - In ODIN, check the Auto Reboot and F. Reset Time options.
Step 9 - Now click on the Start button in ODIN. flash process will start and would take a few seconds to complete.

pda_bck_cf-root_universal_beta14fix - Download - 4shared
Download pda bck cf-root universal beta14fix.tar