I am a representative of Bitmain. Absolutely upgrade to 12/19, it is the most stable of all S3 firmwares and fixes a critical bug.
That is bitmain's flaw to have you as a representative if they actually do. Saying that, I've never seen bitmain refer to you as their representative anywhere.
In any case, you should know that it is adequate to simply update cgminer in the Aug firmware as the reset button (your favourite excuse) works well. Just the stratum bug that was fixed in cgminer 4.6.1 needs to be corrected in the Aug firmware, but you did not even ask the OP to check for cgminer version before suggesting your firmware update (for all we know, his unit may have an updated cgminer from the previous owner!).
EDIT: And why do you insist on posting links to your firmware updates rather than refer people to the bitmain site? Does that link contain your own edited firmware where you've introduced suttle bugs to steal hash-rate or some other sinister stuff under the cover of
a bitmain representative?
Because 12/19 is no longer hosted on bitmaintech, you can verify the MD5 is identical. Please take any scam accusations to the
scam accusation subforum as its off topic here.
If it is no longer hosted by bitmain, then anyone in their right mind should never install it as it is junk firmware and will surely invalidate any warranty they may have. It is well documented, and been brought to your attention several times, that the firmware you refer people to causes all sorts of problems but you refuse to take any notice of it.
The most recent person you tried to ram your firmware up clearly has a pre-S3+ rig, i.e Aug firmware, and those particular units have been known to have a decayed performance with the latter firmware releases, but you still jumped at the opportunity to refer them to your special upgrade .... how daft is that?
If you think I am making any un-reasonable accusations, feel free to open a scam accusation thread against me. And your private firmware updates aree the off-topic ones in as far as this thread is concerned! All firmware upgrades SHOULD be downloaded from the bitmain site, not from your stash of compromised firmwares. How bitmain let you potentialy tarnish their image beggars the question, are you their hatchet man? Fortunately, this is not a bitmain forum.