how to restore factory settings for allen bradley plc compact logix 1769-l35e

while i am trying to change ip address online , plc has gone to conflict mode.
Now i want to restore the factory settings for allen bradley 1769-L35E.
Please guide me

If all you need to do is change the IP address the below should accomplish what you need.

Assuming you have the program, I would first reset the CH0 setting to default(use a small screwdriver or a pencil to depress the CH0 reset button located on the lower right of the CPU).
Then I would connect directly to the PLC via a serial cable and make what changes I needed from there.
Then connect to the PLC via tcp-ip and reset the serial port settings back to the program version.(if necessary)