I cannot remember my unlock pattern on my samsung GT-s5360

If you did not remember your unlock pattern ,you cannot open your phone anymore so you need to reset your phone like this...

1. Power off phone
2. Press and hold Home Button ( middle ) + Volume Up + power on button
3. Wait for 5 second until Android System Recovery menu appear
4. There are 4 options

reboot system now
apply update from sdcar
wipe data/factory reset
wipe cache partition

5. Move the options to " Wipe data / factory reset " using volume down ( - ) button and menu button to confirm, because the touchscreen doesn't work in reovery mode
6. After the process done, phone will reboot.