How to Overclock the iPhone

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In order to modify your iPhone to increase the standard processor speed, your iPhone must be jailbroken and must be older than an iPhone 5. The iPhone 5 processor has dynamic clock scaling which adjusts to increase speed as your applications demand more resources. Older iPhones can be overclocked by renaming a system file, which stores configuration information to limit the clock speed on the iPhone processor. To rename the file you will need to access the iPhone filesystem. There are several methods to access the filesystem, however all of them require at least one package to be installed from Cydia. Cydia is the application store for jailbroken applications similar to the App Store for standard iPhone applications.

Using iFile to Access iPhone Filesystem

  • Launch Cydia on your jailbroken iPhone and search for "iFile."

  • Tap the name iFile in the search results and tap "Install."

  • Tap "Confirm" and then "Return to Cydia" after the installation is complete.

  • Tap the home button of your iPhone, launch iFile and navigate to "System/Library/System Configuration/PowerManagement.bundle/" for iPhones older than 4S. For iPhone 4S models, navigate to "System/Library/System Configuration/."

  • Tap the blue arrow icon next to the file com.apple.SystemPowerProfileDefault.plist. Rename the file to the name "SystemPowerProfileDefault.plist." Reboot your iPhone and it will run at full speed.

Using MobileTerminal

  • Launch Cydia and search for "MobileTerminal." Tap the name in the search results and tap "Install."

  • Tap "Confirm" and tap "Return to Cydia" when the installation is complete.

  • Tap the home button of your iPhone and launch Mobile Termial

  • Type "mv /System/Library/System Configuration/PowerManagement.bundle/com.apple.SystemPowerProfileDefault.plist /System/Library/System Configuration/PowerManagement.bundleSystemPowerProfileDefault.plist" for iPhones older than 4S.

  • Type "mv /System/Library/System Configuration/com.apple.SystemPowerProfileDefault.plist /System/Library/System Configuration/SystemPowerProfileDefault.plist" for iPhone 4S models.

  • Reboot your iPhone and it will run at full speed.

Using WinSCP from Your Computer

  • Launch Cydia on your iPhone and search for "OpenSSH". Tap the name "OpenSSH" in the search results, tap "Install" and tap "Confirm." Tap "Return to Cydia" when the installation is complete.

  • Search for "SBSettings" in Cydia and tap the name in the search results. Tap "Install" and tap "Confirm." Tap "Restart Springboard" when the installation is complete.

  • Swipe your finger across the top of your iPhone screen over the time, which will launch the SBSettings screen. Ensure the "SSH" icon is green, which indicates SSH is enabled. Also, note the Wi-Fi IP Address which is also in this screen. You will need IP Address later in this process.

  • Download and install WInSCP to your Windows computer. There is a link to this download in the Resources section.

  • Launch WInSCP on your Windows computer after installation and enter the IP Address from Step 3 into the "Host Name" field.

  • Select "SFTP" in the "FIle Protocol" drop-down menu.

  • Enter "root" in the "User name" field and "alpine" in the "Password" field. Click "Login."

  • Click "Yes" or "Accept" on any security alert boxes you see during this first login attempt. These are normal and you must accept in order to complete the connection.

  • Use the right side of the file navigation screen to navigate to "System/Library/System Configuration/PowerManagement.bundle/" for iPhones older than 4S. For iPhone 4S models, navigate to "System/Library/System Configuration/."

  • Right-click on the file com.apple.SystemPowerProfileDefault.plist and select "Rename." Rename the file to the name "SystemPowerProfileDefault.plist." Reboot your iPhone and it will run at full speed.

Tips & Warnings

  • The information in this article applies to iPhone versions 3, 3S and 4 running a jailbroken version of iOS up to 6.1.3. This also applies to iPhone 4S phones running a jailbroken version of iOS up to 6.1.2.
  • Jailbreaking your iPhone is not supported by Apple and doing so will void the service warranty. Additionally, overclocking your iPhone may reduce the expected life of the processor.

References

  • Photo Credit Photos.com/PhotoObjects.net/Getty Images
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