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- EVO 4G Froyo Downgrade
- Preparation:
- 1. Backup anything you need on your phone, as this procedure will erase everything that's not on the SDcard
- Use programs such as "MyBackup, MyBackup Pro, SMS Backup & Restore, Call Log Backup & Restore, etc.)
- 2. Download and Install these HTC Drivers
- http://downloads.codefi.re/zanzibar/Tools/HTCDriver3.0.0.007.exe
- 3. Download EVO-4G_4.67_Downgrade_Kit.zip
- http://downloads.codefi.re/zanzibar/Supersonic/EVO-4G_4.67_Downgrade_Kit.zip
- 3a. 3a. If you don't have Windows, but instead have Mac or Linux,
- then Download the Mac/Linux Tools called MAC-Linux.zip
- http://downloads.codefi.re/zanzibar/Tools/MAC-Linux.zip
- 4. Download a Froyo Based PC36IMG.zip - Original file name was: PC36IMG_SuperSonic_S_Sprint_WWE_3.70.651.1_Radio_2.15.00.11.19_NV_1.90_release_161482_signed.zip
- http://downloads.codefi.re/zanzibar/Supersonic/3.70.651.1/PC36IMG.zip
- ( mirrored here )
- http://goo.im/devs/zanzibar/Supersonic/3.70.651.1/PC36IMG.zip
- ( also mirrored here, but must be renamed to PC36IMG.zip )
- http://d-h.st/NHo
- 5. Create a new directory (folder) to work from.
- 6. Extract all files from EVO-4G_4.67_Downgrade_Kit.zip into the newly created directory.
- 6a. If necessary, extract the appropriate MAC or Linux files into the same directory.
- Be sure to chmod them to 755.
- 7. Copy, but DO NOT EXTRACT PC36IMG_SuperSonic_S_Sprint_WWE_3.70.651.1_Radio_2.15.00.11.19_NV_1.90_release_161482_signed.zip into the same directory.
- 8. Download the following file from the shortened URL, and place it in the same directory, as well.
- PC36IMG_SuperSonic_GB_Sprint_WWE_4.67.651.3_Radio_2.15.00.12.19_NV_2.33_Hboot_6.16.0420_CWM_5.0.2.2.zip
- http://downloads.codefi.re/zanzibar/Supersonic/Custom/PC36IMG_SuperSonic_GB_Sprint_WWE_4.67.651.3_Radio_2.15.00.12.19_NV_2.33_Hboot_6.16.0420_CWM_5.0.2.2.zip
- ( Mirrored here )
- http://tinyw.in/Supersonic420
- Filenames with MD5 Hashes
- MD5: 2de1e312f3d3d5e7084058973c9348b7 - adb.exe
- MD5: 47a6ee3f186b2c2f5057028906bac0c6 - AdbWinApi.dll
- MD5: 5f23f2f936bdfac90bb0a4970ad365cf - AdbWinUsbApi.dll
- MD5: 6bbf05d97585c3c515bdb172eb9e7d12 - fastboot.exe
- MD5: 90d5f886a1650b5be31b01663d0c5667 - MAC-Linux.zip
- MD5: 12c080ebe8546b54591109de191426f9 - flash_image
- MD5: ddf84c84b18cfab0453ca2fdd888b54e - mtd-eng.img
- MD5: 793e269f20a804e1abbb20a4369cc4d3 - tacoroot.sh
- MD5: 7056d42812aa5df03fcc8dddc2b64e85 - PC36IMG.zip
- MD5: 3c1b499cd96258f10fb78c4858b6c0bb - PC36IMG_SuperSonic_GB_Sprint_WWE_4.67.651.3_Radio_2.15.00.12.19_NV_2.33_Hboot_6.16.0420_CWM_5.0.2.2.zip
- Prepare your phone
- 1. Turn on "USB Debugging" on your phone: Menu -> Settings -> Applications -> Development
- 2. Connect the HTC EVO 4G to your computer & set the connection mode on the phone to "Charge Only"
- Obtain Root Access
- ( If you have Software Number 5.07.651.1 or higher, use http://htcdev.com/bootloader to unlock your phone.
- Then install a custom recovery, such as TWRP, and install root from within recovery. After you install root,
- you will need to relock your phone, by typing "fastboot oem lock" from command prompt. Continue to Step 5 )
- ( If you do have Software Number 4.67.651.3 or lower, you need to do Steps 3 and 4. )
- 3. Open a command prompt or terminal and navigate to your directory with adb and the other files.
- 4. Enter the following commands (in bold):
- adb devices
- If you see your device listed, continue with the rest of this guide.
- Otherwise, verify you have properly installed the HTC Drivers.
- If you have used HTCdev to unlock your bootloader, and already have
- root access, then skip down to Step 5. If not, continue on.
- adb push tacoroot.sh /data/local/
- adb shell chmod 755 /data/local/tacoroot.sh
- adb shell /data/local/tacoroot.sh --recovery
- Your phone will reboot into recovery (It will look like a phone icon
- with a red triangle and an exclamation mark in the middle). Hit
- Volume-Up + Power and choose Reboot System now
- Wait for system to reboot.
- adb shell /data/local/tacoroot.sh --setup
- Your phone will again reboot into recovery. Hit Volume-Up + Power
- and choose Reboot System now
- Wait for system to reboot.
- adb shell /data/local/tacoroot.sh --root
- Your phone will again reboot. It may not boot fully this time, but
- you will hear the USB connection beeps, and adb will work fine.
- Downgrade
- ---------
- ( All Software Number versions continue here. )
- 5. Now that you have root, flash a new downgradable misc partition, and downgrade.
- adb push flash_image /data/local/
- adb push mtd-eng.img /data/local/
- adb shell
- At this point your prompt should now be "# " - Type su if not.
- cd /data/local/
- chmod 755 flash_image
- ./flash_image misc /data/local/mtd-eng.img
- Verify there were no errors - otherwise abort
- exit
- adb reboot oem-78
- Your phone will reboot and say HTC in big gray letters
- In the command prompt/terminal window, type the following:
- fastboot erase cache
- fastboot flash zip PC36IMG.zip
- Don't worry if the following shows up in your command window
- FAILED (remote: 90 hboot pre-update! please flush image again immediately)
- If so, you'll need to type the above command a 2nd time:
- fastboot flash zip PC36IMG.zip
- After a bunch of status messages appear on the screen, and you
- are returned to your prompt, continue
- fastboot reboot
- When this has finished, your phone will be back to running Froyo, in a factory stock condition.
- You are now ready to run unrEVOked v3.32 ( http://unrevoked.com/recovery/ ), and get radio S-OFF, the best S-OFF there is.
- On freenode IRC, join: #unrEVOkedtest, and type the following command into the channel:
- Here are the steps to run unrEVOked:
- 1. If you are running Windows, you need to install the unrEVOked modified HBOOT Drivers.
- Follow the directions Here (http://unrevoked.com/rootwiki/doku.php/public/windows_hboot_driver_install )
- ( The driver needed can also be downloaded from: http://downloads.codefi.re/zanzibar/Tools/android-usb-driver.zip )
- (Click Back When Done.)
- 2. Boot your phone into running mode, and checkmark these two items:
- Turn on Unknown sources (Menu -> Settings -> Applications)
- Turn on USB debugging. (Menu -> Settings -> Applications -> Development)
- 3. Plug the phone directly into the computer's USB Port.
- Do not use a USB hub, and plug it in the back if possible.
- Choose the option "Charge Only" on the phone, not "HTC Sync" or "Disk Drive".
- 4. Download reflash-package from: http://www.unrevoked.com/recovery/
- ( You can download the Windows executable from: http://downloads.codefi.re/zanzibar/Tools/reflash_package_v3.32.exe )
- ( You can download the Linux executable from: http://downloads.codefi.re/zanzibar/Tools/reflash.tar.gz )
- ( You can download the Mac executable from: http://downloads.codefi.re/zanzibar/Tools/Reflash.dmg )
- For Windows, run reflash-package.exe or reflash_package_v3.32.exe, as Administrator)
- For Linux/Mac, run reflash as root ( sudo ./reflash )
- AFTER you complete the root and S-OFF, you should flash the file
- PC36IMG_SuperSonic_GB_Sprint_WWE_4.67.651.3_Radio_2.15.00.12.19_NV_2.33_Hboot_6.16.0420_CWM_5.0.2.2.zip
- This will give you latest version of Gingerbread, along with the newest radios on your EVO 4G. This also includes a custom HBOOT and ClockWorkMod recovery. The custom HBOOT will give you many extra fastboot commands, normally only available with an Engineering HBOOT.
- Boot your phone fully, and do the following:
- Turn on "USB Debugging" on your phone: Menu -> Settings -> Applications -> Development
- In your command prompt, type this:
- adb reboot oem-78
- Your phone will reboot and say HTC in big gray letters
- In the command prompt/terminal window, type the following:
- fastboot erase cache
- fastboot flash zip PC36IMG_SuperSonic_GB_Sprint_WWE_4.67.651.3_Radio_2.15.00.12.19_NV_2.33_Hboot_6.16.0420_CWM_5.0.2.2.zip
- Don't worry if the following shows up in your command window
- FAILED (remote: 90 hboot pre-update! please flush image again immediately)
- If so, you'll need to type the above command a 2nd time:
- fastboot flash zip PC36IMG_SuperSonic_GB_Sprint_WWE_4.67.651.3_Radio_2.15.00.12.19_NV_2.33_Hboot_6.16.0420_CWM_5.0.2.2.zip
- After a bunch of status messages appear on the screen, and you are
- returned to your prompt, continue
- fastboot reboot
- When this has finished, your phone will be back to running 4.67.651.3, with all the latest radios, etc.
- The final step will be to do the following:
- Download Superuser-3.0.7-efghi-signed.zip (md5: fc462fa0630379edbe10006b1d19d9b1). Do not extract any files from the zipfile. Place this zipfile on your sdcard, and install it from within ClockWorkMod recovery.
- The file is located here - http://downloads.codefi.re/zanzibar/Tools/Superuser-3.0.7-efghi-signed.zip
- Good Luck!
- If this Guide has helped you, please consider donating : http://tinyw.in/evo4gdowndonate
- (c) 2012-2015
- Page Created by Zanzibar/ZanzDroid (2012-03-22) (Updated on 2012-04-11, 2013-09-25, 2014-09-12, Last updated 2015-01-06)
- Thanks to hyuh for proof-reading, and advice.
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