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Problem with GT-I900 upgrade

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Join Date: Apr 2011
Default Problem with GT-I900 upgrade

Hi I was trying to upgrade the Android Version on a Galaxy S2.

I installed Clockwork Mod Recovery and was able to boot into it but couldn't access the SD for installing image.

I booted into the downloading screen ( vol down and power on boot ) and installed an image then bootloader via Odin.

Now when I boot there is the standard Samasung Galaxy S2 logo and I can't access the downloading screen or clockwork mod and it just goes to the animated S logo with usb not recognized appearing on the connected Windows box.

Is there anyway to restore from this point?
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Are you able to access the phone through ADB?

If yes, run: adb reboot download, and this should put you in downlaod mode so you can odin a new firmware.

If no adb access, Does odin recognize the phone?

If yes, you should be able to odin a new firmware.

Make sure when you flash the new firmware you are using the correct rom for your device. ie: from your post you have a GS2 I9000 which is not the same as the GS2 SGH-T989.

you would use roms from this forum:

If you are unable to flash a rom you can always purchase a download mode jig to get you into download mode if you have not Hard Bricked the phone. If you have Hard Bricked your phone there are a couple of sites that do Jtag repair to unbrick your phone.

Good Luck


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Default No reponse from Odin or ADB

I have purchased a download mode jig hopefully it will work.

Thanks for your advice
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