Antminer s5 write to EMC

Ok- sorry in advance for the long explanation - however it is necessary.

I had a S4 go down on me. It was the BB. So being the crafty guy I am - I grabbed the BB from an S5 (figured it was almost 1TH more to be running the S4) everything is fine and dandy - I send the bad S4 BB to bitmain and they swap it for a BB for another S4 BB. Simple enough - that's what I asked for.

Now- I have no Idea which unit I used the old S5 BB in (I have almost 20) so it would be easier just to make the S4 BB work in an S5 -or so I think...

Here is the problem. The S4 is designed to run off of an SD card ONLY. So I figure - I will download the S5 image and put it on an SD card and flash it. Well- that didn't work out. I was able to get the S5 to boot with the SD card - But it ALWAYS has the default pool info for BITMAIN when it restarts or reboots. So now - I would REALLY like to flash the S5 with the current SD card. But it appears that you have to have an S2 button on the board to initiate flash. *(I'm guessing bitmain saved a lot of money buying stripped down BB's) At this point I either need to modify the code on the SD card to be my pools. Or figure out a way to flash the BB with the SD card and get it back to normal.

Any help would be appreciated.

unix skill set = lacking...But I follow directions VERY well - unless you are my wife! LOL

Thanks

Boomin