[EVO 4G Android Development] URAR1004:
I think I found the right thread. My phone is:

Firmware version: 2.1-update 1

Baseband version 2.05.00.06.01

Software number 1.47.651.1

HBOOT-0.79.0000

can you please point me in the right direction, at the beginning of this post it states that if you have HBOOT 0.79.0000, you will need to do Toast's Part 2 first before starting here.

So I do Toast's Part 2 (h ttp://xdaforums.com/showthread.php?t=701835) starting with a Nandroid backup the proceed with whitslack's: How to start over: Fully rooted stock 1.47.651.1 in one shot (no adb!) (h ttp://xdaforums.com/showthread.php?t=715915)

Am I on the right path? It this the best way?

I've been reading and reading and very confused, I'm trying, I haven't updated my phone so that one day I can up load a rom.

Thanks for your advice and help?

STEP 1~NANDROID BACKUP:

- go into the recovery provided in the PART 1 root method and do a nandroid backup before u begin this. we will use this nandroid at the end of this tutorial to get u back where u were.

STEP 2~FLASHING MTD PARTITION TO ENABLE DOWNGRADE:

- down;oad all files posted above

- unzip the flash_image.zip and the mtd-eng.zip

- put the flash_image and mtd-eng.img on the root of your sdcard

- go into shell on ur pc and do:

Code:

adb shell

cat /sdcard/flash_image > /data/flash_image

chmod 755 /data/flash_image

/data/flash_image misc /sdcard/mtd-eng.img

- this should only take a second or two

- now put the PC36IMG.zip on the root of your sdcard

- power off the phone

STEP 3~FLASHING ENG BUILD:

- hold volume down + power to boot into hboot

- it should now find and verify the PC36IMG.zip on the root of your sdcard. itll show a blue status bar on the top right of the screen.

- after a minute or so it will ask u if u wanna flash SAY YES

- affter it flashes the PC36IMG.zip it will ask if you wanna reboot. SAY YES

- once booted into Android put the recovery.img linked above on the root of you sdcard

- on your PC open a shell again and do:

Code:

adb shell

cat /sdcard/flash_image > /data/flash_image

chmod 755 /data/flash_image

/data/flash_image recovery /sdcard/recovery.img

reboot recovery

- you should now be in recovery mode

- do a wipe of data and dalvik cache

- navigate to nandroid restore and restore the previous rom setup

- come here to the forum, get and flash the latest radio

- enjoy... you can now reboot into recovery, write to system and other partitions while in Android. Also you now have a Engineering SPL so you can fastboot and much more.

Then:

Download this file, rename it PC36IMG.zip, and put it on the root of your SD card however you like.

PC36IMG-1.47.651.1_eng-hboot_RA-1.7.0.1.zip (md5=1ae574c403e9a2694de97706391255c0)

Power off your phone.

Hold down the Volume Down and Power buttons until the white screen appears.

HBOOT will scan the PC36IMG.zip file. You'll see a blue progress bar on the right side of the screen.

When it's finished scanning, it will ask if you want to start the update. Press the Volume Up button to answer Yes.

Wait a while for it to flash all the images.

If you get a "Fail-PU" error on the recovery image, see below.

When it finishes and asks if you want to reboot the device, press the Volume Up button to answer Yes.

After the phone has rebooted, delete the PC36IMG.zip file from your SD card.

Download this file to your SD card:

su-2.1-e-unsecure-signed.zip (md5=a055c916168db7e61a75a37a13993cd6)

Power off your phone.

Hold down the Volume Down and Power buttons until the white screen appears.

If you forgot to delete PC36IMG.zip from your SD card, HBOOT will scan it again now. When it asks if you want to start the update, press Volume Down to answer No. When it asks if you want to reboot, press Volume Down again.

Now you should be at the HBOOT menu. Press Volume Down to move the selection to RECOVERY and press the Power button to select it.

In a moment, you'll be at a different looking menu.

Using the Volume and Power buttons as before, select "Flash zip from sdcard."

Select su-2.1-e-unsecure-signed.zip from the list and follow the prompts to flash it.

When that's finished and you're back at the menu, choose "Reboot system now."

You should now have root, unlocked NAND, working WiMAX, and great battery life. :-)

You're finished! The remainder of this post is supplemental information for those who are interested.