I bought an unused (quite rare for such an old phone) HTC Magic, but it has no OS installed on it. Think formatted hard drive in a PC - it powers on without a problem but will not boot.
I found this quote on another forum:
Do you have access into Hboot mode (volDown+powerkey) ,Fastboot(back key+powerkey) or Recovery (home+powerkey)
I'll try this and get back to you.