how to upgrade HTC hero from os 1.5 to 2.1?

i have HTC hero phone with operating system 1.5 i want to up开发者_运维问答grade it to version 2.1 can any one guide me the complete procedure ?

any help would be appriciated.

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CyanogenMod is the only way to go. I modded mine and it works great. There is an unofficial mod specific to the Hero here

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The official Android 2.1 rom is out now. Make sure your phone is clean by downloading the original rom from the HTC website. Then, you will receive the new rom automatically.