I have the 8800-51 Android 2.2 and hope to upgrade to 2.3.5. The official instructions leave me puzzled. The phone has a single vol. control so how do I press up and down simultaneously. Also, I found nothing on the phone about dload directory or SD card root directory. This may be very simple but Huawei's instructions sure don't make it easy. Also, if there's an upgrade option available why doesn't the upgrade option on the phone itself work. Thanks for your help.