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How to check Galaxy S4 CPU temperature?

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Jayce Ooi
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How to check Samsung Galaxy S4 CPU temperature? A simple question but no easy answer. So far I can’t find any Android application at Google Play Store that can display Galaxy S4 GT-I9500 CPU temperature. All of them are displaying battery temperature instead. This is not what I want. Luckily, I discovered that Samsung has its own application to do so. Not so user friendly but it does the job ~ show Galaxy S4 CPU temp. It is able to show Exynos 5 Octa CPU temp. It should work for GT-I9505 Qualcomm Snapdragon 600 too.

Samsung Galaxy S4 Thermistor
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How fast is your Nexus 4 CPU?

By
Jayce Ooi
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The very first thing that I want to find out for long time after getting my Google Nexus 4 ~ how fast is the Qualcomm APQ8064 CPU chip inside? Slow, Nominal, Fast or Faster bin? The faster bin means you can overclock and undervolt better than other bins. So you can get better performance, battery life and generate less heat if configure correctly. Want to know yours? Just use Terminal Emulator to find out. Note – Root access is required.

LG Nexus 4 CPU binning
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How to undervolt Nexus 7?

By
Jayce Ooi
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Want to increase Google Nexus 7 battery life? Undervolt Nexus 7 NVIDIA Tegra 3 Super 4-PLUS-1 Quad Core CPU is one of the ways to do so. Besides Nexus 7 7″ HD WXGA IPS screen, Tegra 3 Quad Core CPU is another big battery eater. Undervolting helps to reduce Nexus 7 battery usage, and will make Nexus 7 cooler (generate less heat) too. Unlike underclock which may not be so efficient in performance / walt ratio. Undervolt surely will improve battery life because it maintains the overall performance speed while lower the battery usage. As usual, you need to install custom kernel for Nexus 7 in order to undervolt. Stock Nexus 7 kernel does not support it.

Undervolt Nexus 7
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Download CPU Spy for Android

By
Jayce Ooi
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Most of the smartphone CPU has multiple speed stages. Take Samsung Galaxy S II as example. It has 6 stages ranging from 1.2 GHz, 1 GHz, 800 MHz, 500 MHz, 200 MHz and deep sleep mode. Do you know which speed stage does your Android phone uses the most? If no, CPU Spy for Android is the application that will tell you. CPU Spy displays the time of the CPU spends in each frequency state. It is a useful tool to diagnose battery problems. And understand it better to tweak by overclock / underclock and undervolt.

CPU Spy for Android
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SetCPU ~ CPU overclocking, underclocking & tweaking speeds for rooted Android phone

By
Jayce Ooi
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Overclocking is not a stranger to me. I overclocked my old Intel Core2 Extreme quad-core processor QX9650 to 3.6 GHz. And I can overclock my HTC HD2 with SetCPU’s help too. SetCPU is CPU speed tweaking application for Android. In details, it allows control of certain aspects of the Linux cpufreq driver by allowing for overclocking, underclocking and tweaking speeds. It works on most rooted Android 1.5, 1.6, 2.0, 2.1, 2.2 builds.

SetCPU for Root Users
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