A simple way to unroot your HTC Hero

Let’s say you have a rooted HTC Hero because you were tired of waiting for HTC official updates, but now that an official Eclair update is going to be released you want it back to its factory defaults, otherwise the updating procedure won’t work.

The procedure to unroot and restore your HTC Hero actually is quite simple.
You just need to reflash the phone using the HTC utility from this page.

That page explains to launch the updater after HTC has been recognized by the HTC Sync utility.

It sounds simple but I got unlucky twice today: the first, as I launched the update utility, HTC Sync disconnected the phone. This happened all the time. The second time, on a different computer, the HTC Sync installer crashed.. there was no way to install it.

If it happens to you too, cheer yourself up! There is an other way to achieve your purpose.

This obscure command reboots the phone in RRU mode. Once the phone is ready you can launch the update utility without HTC Sync installed.

That’s it.