HTC Dream / T-Mobile G1

Recently had a situation where I borked my G1 / HTC Dream. It took me hours to fix. This isn't a tutorial on how to install third party roms or root your G1, it's more of a troubleshooting thing.

Screen would be stuck on the "T-mobile G1 Screen". If it's on there for longer than 5-10 minutes, you have have an issue.

Had to pull battery out many times.

SPL to use is HardSPL. Look here: http://code.google.com/p/android-roms/wiki/Install_Hard_SPL. To check your SPL boot holding Camera+Disconnect buttons. Hold camera to switch between Fastboot and serial.

HardSPL includes fastboot. Fastboot lets you flash recovery images when no other options are available. You can grab flashboot for Linux/OS X/Windows at http://developer.htc.com/adp.html.

Fastboot binary may require you type sudo before, for elevated use permissions.

Download the SDK for your operating system, move fastboot into the /tools folder. If on linux or OS X, chmod +x fastboot.

$ sudo ./fastboot flash recovery recovery_image.img

Recovery images. cm-recovery 1.4 is OK. However RA-Dream (amon recovery) is superior (supports adb, console and sd card mounting from it). Big time saver because you'll be transferring stuff to/from your SD card often.

Reinstalling Cyanogen sometimes means you may need to install the original HTC 1.6 image (MD5sum: b3e12b004c155761a10b1a848288e0c3) http://www.baroukh.com/adp1/signed-dream_devphone_userdebug-ota-14721.zip

For the fastboot image (no signature for updater to check against, fastboot only, MD5: a06a3d24ff4cbe5c81317e41891e6965): http://www.baroukh.com/adp1/signed-dream_devphone_userdebug-img-14721.zip

Then you can grab Cyanogenmod and upgrade via Recovery: http://forum.xda-developers.com/showthread.php?t=567610