Root how to downgrade android 2.2.1-2.1 using rom manager

[Kevin123]

as the title says can anybody tell me how to do it?

 

[Steven58]

If you even try, u will permanently brick your phone.

 

[kennydied23]

You're stuck on 2.2.1. Once you upgrade you can't downgrade.

 

[colchiro]

2.2.1 is great. Your best bet is to fix whatever problem you have with it.