Is there only one express firmware that works for all versions of the LE? In the wiki I can only find firmware listed with the V5. Also I do not see the V1-v4 assembly manuals listed anywhere. I would expect them to be in the discontinued hardware section, but nada. If the v5 firmware works for v3 and v4 there should be a note to that effect in the wiki. Maybe there is, but I have not found it. I'm starting to get all my equipment out to test and cleanup any issues so need to know.