Originally Posted by user1829
sounds good! but will this work for a A510B as well?
Since the A510b is a GSM phone similar to the A510e it will work. However, the radios are different (frequency issue) so avoid flashing the radio with an A510e ROM.
The important thing is the part number (behind the battery). My A510e is part# PG76100 and I used the corresponding generic EU HBOOT update for that part. I read somewhere that the A510b is part number PG76120. (You'll need to verify that for yourself.) If so, there is an HBOOT update for you at HTC dev, but it may have a different country/brand than your phone.
Also, check out this post: ERROR  ROM IS NOT SUPPORTED , my wait seems endless - xda-developers
. His method will get you past the first half of step 2 above, which is the hardest part. It's a little complicated, but I had to go through the same process because HTC has not released the Asia-flavored PG76100 HBOOT update. Thus I forced the EU HBOOT and everything went fine.