How To Fix iPhone Battery Issues after Jailbreaking and Unlocking iOS 4.3.3
It’s been a while since Apple rolled out the iOS 4.3.3 for the users of iPhone 4, iPhone 3GS, iPad 2, iPad 1, iPod Touch 4G, and iPod Touch 3G. Well, if you are iOS user who rely on Ultrasn0w carrier unlock, then you probably jailbreak your iPhone 4 or iPhone 3GS using either PwnageTool 4.3.3 (for Mac Os X users) or with Sn0wbreeze 2.7 in order to preserve the unlockable baseband in order to unlock your iPhone 4 or iPhone 3GS on its carrier using Ultrasn0w 1.2.3.
However, there were some reports that some iPhone 3GS with custom iPad baseband (6.15.00) who unlocked their device on iOS 4.3.3 are having some issues on their gadget, specifically the battery life of their device. So, if you are one of the iPhone 3GS who have some issues on their battery then you can follow the step by step guide and tips posted below to resolve this issue. Also, the instructions and tips posted below also applies on jailbroken and non jailbroken iPhone 4, iPhone 3GS, iPad 1, iPod Touch 4G, and iPod Touch 3G.
HowTo Fix iPhone Battery Issues After Jailbreaking iOS 4.3.3
Note: if you still on iOS 4.2.1, do not upgrade to iOS 43.3 because there were some reports that iOS 4.2.1 provides best battery standby time.
Step 1: If you are one of the users who always save their SHSH Blobs every time apple launches a new version of iPhone firmware, then restore your iOS device on iOS 4.2.1 in iTunes using this tutorial.
Step 2: Disable iOS multitasking or Install “Remove Background” SBSettings toggle from Cydia. This will allow you to remove all applications running in the background of your jailbroken iOS device before it goes to sleep in just a single tap.
Step 3: Activate your iPhone 4 or your iPhone 3GS on iOS 4.2.1 or iOS 4.3.3 using SAM.
Step 4: Disable some features on your MobileSubstrate Addons: just simply navigate to SBSettings -> More -> MobileSubstrate Addons and choose that one that you do not use disable it.
Step 5: Turn off your 3G network if your mobile phone carrier does not support 3G.
Step 6: you can turn off your Bluetooth if you were not using it
Step 7: If you have installed Celeste app, then turn it off if you were not using it
Step 8: Turn off your EDGE and GPRS
Step 9: You can also turn off your Wi-Fi if you were not using it
Step 10: Have WinterBoard app? Try to uninstall it from Cydia or install iWipeCache from Cydia App Store if you still want to use WinterBoard themes
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