Further to immediately above, I found a phone with fully charged battery and put it in mine. As an aside, I put my battery in that phone and it seems to be charging OK - light comes on and stays on. So I'm guessing that there's a problem in the charging circuit or software on the phone and I've wasted my money on a new battery.
Relocked bootloader OK.
Unlocked it again OK.
Flashed recovery as per instructions on other post. Again, I get the OKAY and finished messages in the command prompt and also the green bar going to the top on the phone. But when I disconnect the phone and then select recovery, I get the white screen with HTC Logo and no progression after at least 5 minutes.
Relocked bootloader OK.
Unlocked it again OK.
Flashed recovery as per instructions on other post. Again, I get the OKAY and finished messages in the command prompt and also the green bar going to the top on the phone. But when I disconnect the phone and then select recovery, I get the white screen with HTC Logo and no progression after at least 5 minutes.