How To - Upgrade Android 2.2.2 To GingerBread 2.3.6 [Samsung B7510 Glaxy Pro]

Finally after waiting for about 8 months for Gingerbread upgrade we have finally been successful in upgrading Samsung Galaxy Pro B7510 to Gingerbread. We have successfully tested in my handset  and it is working fine. it don’t have custom roms yet for this Galaxy Pro but this upgrade is worth doing.
Steps before Upgrading:

1. Take backup of Contacts. Go to Contacts > Press Menu button > Click on More > Import/Export > Export to SD card > Confirm by pressing Yes.
2. Take backup of your messages. For this you need an app. I personally use SMS backup & Restore Pro by Ritesh Sahu, you can get it for free