Hi all... just want to post some "3 button combo fix" results with my MTN Galaxy S and hope that some users find this useful:
Firstly, my SGS's details (Stock Eclair 2.1):
PDA: I9000XWJM3
PHONE: I9000XXJM2
CSC: I9000OXXJM2
My 3 button combo mode did not work out of the box. I ordered the SGS from MTN and got it the day MTN released it last year.
I still run 2.1 stock Eclair and as many users anxiously wait for the 2.2 Froyo update expected in February.
I don't have any lag fixes installed and would like to test out official froyo first before using the project-voodoo.org lagfix.
However, I wanted to have the 3 Button Combo working in any case: Here are the steps I followed and had immediate first time success with!
Please note that I didn't have any experience with flashing/rooting/android before and was glad that I did not brick this dream phone. Just some basic computer knowledge is required to use the process below. I have never used ODIN or HEIMDALL before.
1. I used the HEIMDALL method in the xda thread (
http://forum.xda-developers.com/showthread.php?t=821698) to begin with.
Download all the latest files as in description of the thread. I used post #620 by kunjar as the steps seamed the clearest.
2. Although the latest Heimdall method claims to work on any SGS, I wanted to make sure that I have the block that reads "!@" as explained in the thread:
2.1 I downloaded the app "Terminal Emulator" from the market and installed it.
2.2 I downloaded z4root v1.3.0 and installed it. After installation I did not run z4root immediately.
2.3 I rebooted the phone. Enabled USB Debugging mode. Run z4root.
2.4 With z4root open, I chose "Temporary Root" since I didn't want the root to be permanent (for warranty issues)
2.5 After a successful "Temporary Root", I opened "Terminal Emulator" and ran the commands as in the thread. Dump was successful.
2.6 I then copied the dump file and searched for the string. Result: I had the "!@" (whatever that means haha)
2.7 I rebooted the phone, tested with "root checker app" that the phone was successfully un-rooted. I uninstalled "super user" and "terminal emulator"
3. Go to post #620 by kunjar (
http://forum.xda-developers.com/showthread.php?t=821698&page=62)
Follow the steps exactly and you should have success fixing your 3 button combo mode!
Please note:
- Prior to "Temporary Root" and Step 3, My phone was fully charged (voltage check >3800)
- Prior to Step 3, all other USB devices was plugged out, silly programs (including all KIES-related programs) and the anti-virus were disabled.
- I also received the "failed" error after the first time I hit "Start", but you just hit "start" immediately again and the flashing should be over and done with within 30 seconds!
Conclusion:
-If my phone passed the "!@" test, I'm pretty sure at least other MTN users' phones will be ok as well.
-Therefore you probably can skip straight to step 3 and follow the steps in the thread #620. (which implies no "temporary rooting" or Hex editors..)
-Heimdall method works!
-z4root's v1.3.0 "temporary root" seams very safe, really only roots your phone temporarily and after reboot it will be un-rooted again
Hope you have success!