**This is entering the realm of experimental stuff**
**Make sure you have made a backup of your current rom**

First of I would like to say that none of these hacks and files are my own work. This stuff was done by all the amazing phone developers over at XDA Developers. I am am simply writing a few posts on rooting the HTC Evo since most of the information was all spread out over the forums and I had a hard time gathering it all together in a organized manner.

**This will not work unless your phone is rooted and nand is unlocked**

This hack will install a custom built kernel on your evo which will increase the max clock speed from 9.5 MHz to about 1.1 MHz. On a phone this is pretty significant. There are lots of other reasons for this kernel upgrade but the Mhz increase was the main reason for me to include this is my Hacking the Evo Series or articles.

There are two kernel choices:
Flashable ZIP – Undervolted kernel v5.1.1 for use with 2.1 (Eclair) ROMs
Flashable ZIP – Normal-volted kernel v5.1.1 for use with 2.1 (Eclair) ROMs

I used the undervolted kernel to help save on battery life.

1. Download the file you want to use

2. Mount your phone as a disk drive

3. Place the .zip file on the root of your sdcard

3. Power off the phone

4. power it back on while holding the volume down key.

5. Once on the bootloader screen select Recovery

6. Next select “update a .zip from sdcard”

7.  After the update completes, reboot and enjoy your new rom.

8. Visit the android market place and download the app SetCPU (It costs a few bucks but well worth the money)

List Price: $69.95 USD
New From: 0 Out of Stock
Used from: $34.39 USD In Stock

List Price: $19.99 USD
New From: $4.75 USD In Stock
Used from: Out of Stock

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5 Responses to “Rooting the HTC Evo 4g – Part 7 (Installing A Custom Kernel)”
  1. sony says:

    after doing part 7; installing custom kernal, my Evo can not find service. also, i get a message that sais ‘sorry! process system is not responding’ and asks me to either force close or wait. i downloaded the undervolted kernal, can you help please


    alex Reply:

    Hello sony,

    I personally don’t have a HTC Evo to test with but I would suggest using this article that purehate wrote regarding going back to the stick Sprint ROM. If you were able to find a different solution we would love to hear what it is.



  2. SimplEVO says:

    How can you not tell people to wipe the cache, and dalvik before flashing the custom kernel.. You should def take responsibility for screwing up peoples phones..


    Billy Reply:

    Do you have “Rom Manager”? If so, and you backed up, you can restore your evo to the stock froyo or the 2.1….whatever you were running prior to the cache clear


  3. Dany says:

    Your positng lays bare the truth


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