Problems updating iphone 3gs to ios 6

They said, “it still not fix some old issues like “wifi connectivity issue, battery drain problem didn’t solved in i OS 9.3.1.SEE ALSO : How to Downgrade i OS 9.3.1 to i OS 9.3 on i Phone, i Pad and i Pod Touch So if you hit any issue based on Apple new i OS 9.3.1 update, do let us via comment.While this may sound intimidating, rest assured that as long as you back up your device before doing the restore, things should go much more smoothly than they did when trying an update.If you see an error message while trying to update your device wirelessly, learn what to do.Download Red Sn0w v0.9.15b1 (Mac OS X) Step 2) Once you have downloaded Red Sn0w v0.9.15b1 you will need to launch it by double clicking on the Redsn0w app.