In this guide, you’ll learn to optimize the speed as well as the battery life of your android device. Before reading on you should be familiar with Android Rooting. Don’t have “root”? check out the article Rooting my Android.
Glad you made it this far 
Now before you begin,
Now before you begin,[For more details on how to download or install SetCPU (or similar apps like CPU Tuner) feel free to comment below this post]Make sure you have :
- A rooted android phone
- SetCPU app. Get it here!
SetCPU for Root Users is an application that allows you to adjust the clock speed of your android powered phone’s CPU. With SetCPU, you can both overclock and underclock your phone’s processor to either help increase performance or save battery life. Once you have the SetCPU app on your android device,follow these simple steps.
Quick guide on how to use SetCPU:
1. Download SetCPU: The first and obvious step is to install the SetCPU app.
2. Grant Superuser Permissions: When you open SetCPU, it will ask you to grant it superuser permissions. This is needed in order to be able to actually use the app.
3. Auto Detect Speeds: After you grant it superuser permissions, you will be taken to a screen where it asks you to either auto detect speeds or show other frequency sets. Select auto detect speeds, but if this option doesn’t work then select show other frequencies and select the phone/processor that most closely matches yours.
4. Set Desired Clock Speeds: You can set both the maximum and minimum clock speeds for your phone’s processor. The maximum speed is the highest frequency your phone will grade the processor up to, while the minimum is the lowest.
Raising the maximum and minimum frequencies will allow you to speed up your device, while lowering them will help save battery life.
5. Scaling: Governors determine how the processor will go back and forth between the minimum and maximum clock speeds that you have set. Some of the popular governors are:
- Conservative: This governor scales the CPU gradually up to the maximum speed as the demand goes up. This is the clock speed I personally use because it gives you a good balance of performance and battery life.
- On Demand: This governor is similar to the conservative one, except it goes straight to the maximum speed whenever there is a demand on the processor.
- Performance: The name says it all, this governor only allows your processor to run at the maximum speed for best performance.
- Power Saver: This governor runs your CPU at the minimum clock speeds at all times to save battery life.
6. Set on Boot: If you don’t check the “set on boot” box, your phone will go back to the default clocks every time your restart it. But before you select this option, be sure to “test drive” your new clock speeds for at least a day or two.
This is a good idea because if you set an unstable clock speed and your phone starts bugging out, you can just restart it and go back to normal. If you don’t test it thoroughly before selecting set on boot, a simple reset might not fix your problems.
7. Profiles: If you want to tweak things a little bit more, you can set custom profiles. Just go to the “profiles” tab and check the “enable” box. Then press “add profile” and you will be given the option to set custom clock speeds based off of user defined conditions like when the phone is charging, the screen is off, the battery level is below a certain percentage, the temperature is above a certain percentage, and more.
And that’s pretty much it. For more information, visit the developers website.
A sample for the optimal profiles is given as(for HTC myTouch 4G):Priority 100 – 1708min/max – ondemandScreen Off
Priority 100 – 245min/max – conservativeCharging USB/Full
Priority 96 – 1708min/max – ondemandCharging/Full
Priority 85 – 1708min/max – ondemandBattery < 20%
Priority 80 – 368 max/245 min – powersaveBattery < 30%
Priority 69 – 768 max/245 min – powersaveBattery < 50%
Priority 60 – 806 max/245 min – conservativeBattery < 75%
Priority 50 – 1497 max/245 min – conservative
Was that hard? Were you able to optimize your phone? Were the instructions unclear? Know another method? Have an opinion? Or just love to comment!
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