Check your iPhone backups in iTunes' settings. It may have backed up your iPhone before it upgraded, as it should. If there is a recent backup, you can restore your iPhone and restore from that backup and have your pictures back.
check your iphone backups in itunes' settings. It may have backed up your iphone before it upgraded, as it should. If there is a recent backup, you can restore your iphone and restore from that backup and have your pictures back.