Maybe you are a little disappointed with the iPhone 3GS’s inability to produce High-Definition video format. Unlike the iPhone 4 series with its HD video recording ability, the 3GS doesn’t match that ability. However, you can actually make the 640×480 pixel resolution video into HD quality by following the simple instructions below.
Of course you can have HD video quality with your 3GS if you upgrade your phone, but if you think that upgrading is not necessary right now, these simple steps can be a valuable workaround to improve your iPhone 3GS video ability. First off, you will have to jailbreak your phone, although you must note that this jailbreaking step may void your warranty.
Afterward, this mobile OS will be treated differently depending on your PC operating system — Mac users and Windows users will have different settings. If you use Mac, you will need to download the Cyberduck application, whereas Windows users must download the WinSCP application.
These two applications are easy to find — just take a little time to search for them on the internet. The next step requires you to configure the settings of Cyberduck or WinSCP right after you finish downloading them. The setting of each application on your PC will be regarding the server.
For Mac, the IP address for your iPhone 3GS can be found through Settings > Wi-Fi > your network name. Enter the username as “root” (without the quote marks), password as your SSH password (the default password is “alpine”), and the protocol as “SFTP”. Meanwhile, WinSCP settings need you to go to Settings > Wi-Fi > Your network name. The username is “root”, the password should be “alpine”, and the protocol is “SCP”.
Furthermore, download the HDVideo3GS-rev3.zip file to your computer. Another option if you don’t have an OpenSSH jailbreak application is to use the Cydia application. When everything is done, connect your iPhone 3GS to your PC — but before you connect it, make sure that iTunes is not running on the system. After the connection is established, copy the three files from HDVideo3GS-rev3.zip.
The files include AVCapture.plist, CameraRollValidator.plist, and MediaValidator.plist. Copy those files with Cyberduck or WinSCP to the following directory: /System/Library/PrivateFrameworks/Celestial.framework/N88/ . To finalize, the mobile OS should be rebooted so the process will be complete.