Archive for February, 2010

Disclaimer: You could brick your phone and/or void your warranty. What you read here and then attempt to do is at your own risk. I am not responsible for what you do with your phone, PC, Mac, or whatever else you are messing around with. Proceed at your own risk.

I received a replacement MT3G after successfully rooting, then subsequently bricking my phone attempting to install an incompatible ROM that updated the SPL. Rooters beware. Below is how I rooted my replacement phone that came with stock Android 1.6 build DRC92 and the perfect SPL 1.33.0007. The combination isnt bad to root IF you have the correct files and a Goldcard.

1. Download and save the file 2.53.707.2_-_sappimg.zip from http://rapidshare.com/files/267446145/2.53.707.2_-_sappimg.zip
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   • Discussion thread: http://forum.xda-developers.com/showthread.php?t=548218
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2. Power down your phone
3. Remove the back panel
4. Remove the SD card
5. Insert the SD card into your PC
6. Copy the zip file to the root of your SD card, no folder
7. Rename the file to "sappimg.zip" if it isn’t already, be sure that it isnt "sappimg.nbh.nbh"
8. Put the SD card into your phone
9. Enter "FASTBOOT Mode" on your phone by holding the Volume Down and Power buttons (you can also use the Back and Power buttons) 
   • The screen will turn white with three little green robots on the bottom
10. Click the trackball and wait for it to pick up the "sappimg.zip" file
    • It may be necessary to press the down volume button, followed by the back button
11. Click the trackball again to begin, it should automatically update from there
    • If you do not get "Update Complete!" you will need to build a Goldcard and try again: Here is how to create a Goldcard – http://thatsbadass.com/android/2010/02/08/goldcard-build/
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12. Once complete, reboot the phone

Sometimes a Goldcard is necessary to successfully install the sappimg necessary to root your phone. Below is the process for creating that Goldcard. I used the original card that came with my phone. Some card do not support this process so you may need to try a few.

First you will need to download a couple things:

1. QMAT: http://www.tucows.com/preview/605064
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2. HxD Hex Editor: http://download.cnet.com/HxD-Hex-Edi…=uo&tag=button
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Here is the process:

1. Extract the file qmat.exe file from the QMAT download
• This will be used to reverse the CID you get from your phone. This can also be done manually by breaking the string into two character sections then reversing it

Example CID: A0B1C2D3E4F5G6H7I8J9KaLb (32 digits)
Breaking CID into 2`s: A0-B1-C2-D3-E4-F5-G6-H7-I8-J9-Ka-Lb
Reverse: Lb-Ka-J9-I8-H7-G6-F5-E4-D3-C2-B1-A0
Remove Dashes: LbKaJ9I8H7G6F5E4D3C2B1A0

2. Format your memory card to fat32. This does not work on all cards.
3. On your phone search the Android Market a ‘Terminal Emulator’.
4. Once installed open the Terminal Emulator and type ‘cat[space]/sys/class/mmc_host/mmc1/mmc1:*/cid‘ without the quote signs or the [space].
5. Write down the code on notepad or something, preferably somewhere you can copy and paste into QMAT.
6. On your computer execute the qmat.exe file that you extracted earlier.
7. Click on Cryptanalysis Tools > Crypto Toolbox
8. Look near the bottom of the application, there is a text box next to the “Reverse String” button.
9. Enter the CID number from step 5
10. Click on the “Reverse String” button.
11. Write down the code on notepad or something and replace the first two characters with 00, preferably somewhere you can copy and paste into the QMAT Goldcard created.
• Example: “532600bd227d9c0347329407514d5402” changes to “002600bd227d9c0347329407514d5402”
12. Go to QMAT to get your Goldcard: http://revskills.de/pages/goldcard.html
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• This is free for G1 phone, Thanks to Viper! (also works with the myTouch3G)
13. Enter your email.
14. For the CID, enter the reversed CID from step 12 with the 00 replacement.
15. Click Continue and you will receive the goldcard.img via your email.
16. Go to your email, download the goldcard.img and save it to a directory.
17. Install the HxD Hex Editor you downloaded
18. Launch the HxD Hex Editor
• Windows 7 and Vista users may need to run the program as Administrator
19. Go to Extra tab
20. Click Open Disk
21. Select Physical disk
22. Select Removable Disk (this is your SD card)
• Make sure you choose Removable Disk under Physical disks, not under Logical disks
23. Uncheck “Open as Readonly"
24. Click OK
25. Go to Extra again
26. Click Open Disk Image
27. Select the goldcard.img you saved from your email.
28. Make sure Sector Size "512 (Hard disks/Floppy disks)" is selected
29. Click OK
• Now, you should have two tabs, one is your removable disk, the other is goldcard.img.
30. Go to the goldcard.img tab.
31. Go to Edit
32. Click Select All
33. Click Edit again
34. Click Copy
35. Click on the “removable disk” tab.
36. Select offset 00000000 thru offset 00000170
37. Click Edit
38. Click Paste Write
39. Click on File
40. Select Save
41. Close HxD
42. Remove the SD card and plug it back in
43. If you get the message to format the card when it is reinserted it is not compatible with the Goldcard process. You will need to try again with a different card.