Attempting to repartition SD card = Device not found in recovery

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Hello,

I just got my Hero this weekend and I was interested in partitioning the SD Card. I have been following a guide and when I boot into recovery(Screen that shows phone with triangle and exclamation point) the computer does not seem to see the Hero anymore.

When I plug the phone in while it is running Android the computer picks it up fine in Device manager. Once I type adb shell reboot recovery it boots into the screen the computer no longer picks it up. I have tried unplugging and replugging the USB cable while in the recovery screen but still get nothing. If I type adb devices before I run the recovery command I am able to get the serial number, once it boots into the recovery screen it no longer shows me the serial number when I type in adb devices. But this is due to it no longer being picked up once in the recovery screen.

I'm not really sure what I am doing wrong here. Can anyone help me get this issue sorted out?

I have tried it on Windows 7 and read that a lot of people had issues with the syncing so I just finished attempting it on an Windows XP machine and still get the same issue.

One more thing, when in the recovery screen the phone does not respond to the power button anymore. It seems almost like it locks up or something. The only way I can get back out of the screen is by taking the battery out and putting it back in. Is this normal?

Any help would be really appreciated!

Thank you,
Mizex

You need to root the phone and install the recovery partition first.

Originally Posted by Mizex

when I boot into recovery(Screen that shows phone with triangle and exclamation point)

Originally Posted by jonnythan

You need to root the phone and install the recovery partition first.

Exactly what jonnythan said. If your recovery screen shows the triangle then you haven't installed a modified recovery image yet. Follow any of the guides on this site for rooting.

Oh wow I feel dumb the guide I was following said nothing about the phone needing to be rooted. I attempted to follow a 1 click root and while attempting to do the backup step I get a message saying that it can't complete the command. According to the guide if I get this error then it means I have a patched firmware and need to downgrade to a cupcake firmware.

Anyone know of a good guide for doing the downgrade? Or can perhaps share a bit of knowledge on the error?