U can reset if u like but not while u r upgrading halftway ...
Just do the upgrading from the first version  right up to the latest  that will do. No reset is require.
Check ur pool hav you enter correctly

Did you try a different ethernet cable?

It is possible that you will need a new controller board. You could always check the cables from the hashing boards to the controller board to make sure that they are secure.

Yeah, I was thinking of that, but the rest of the controller board seems fine, all the LED's, even the wifi LED, turns on (the previous owner had installed a wifi antenna onto the S3)
[/quote]
Controllers aren't too expensive, though- you can order them off Aliexpress for just around 15$ with free shipping. That's the great thing about antminers, they're easy to replace

Hi again, an update on my previous post. I ordered a new hashing board from aliexpress for about £20 to the UK from here https://www.aliexpress.com/item/Antminer-S3-220Gh-s-miner-Fitting-16-chip-pcs-PCB-28-NM-Calculation-circuit-board-bitcoin/32657963607.html?spm=2114.13010608.0.0.ViZuUW and the new board works fine and allowed me to remove the old one for a proper bit of testing. I previously left it in to run the second fan on the unit for the benefit of the still hashing blade.

So looking at it there are no obvious burns, warps, cracks etc. so the multi-meter came out to try and test the mosfets (the row of 8 5335555DQP chips). I pulled up the datasheet http://www.ti.com/lit/ds/symlink/tps53355.pdf but these are a little more complex than I'm used to. Granted a bulk of the pins are the 12v in, and the 0.8v out for the BM1382 chips. But some of the other signal and reference voltage pins threw me just due to terminology as I stated this is only a hobby and not a profession.

I settled for trying to test pins 3 and 4 as my best interpretation of gate and drain. Can anyone weigh in on that? Was difficult to test with certainty due to tiny pin size but seems ok.

However if the mosfets are shorted drain to gate as they most probably would, to my understanding as they are set up in parallel the open gate having drain voltage across it would damage all other mosfets as well, killing the whole board. This is a possibility and fit the symptom of the whole board failing at once, with the 12v fan plug unaffected at the top of the board. The replacement chips look costly as they are more complex than simple mosfets. They have many other features and each chip looks to cost around £7 in a small batch order. Making repair un-economical as all 8 would need changing, assuming the mosfets blowing hasn't also damaged the driving circuitry too.

Again is anyone interested in electronics with some knowledge to share? I'm keen to have an attempt at repair, for my own experience, and as it's a currently dead board it's only good as repair practice or a coffee mat. May as well repair it.

So, I got a cheap S3+ (one hash board was dead) I haven't found replacement hash boards. Is there a why to remove the dead board and get it to run?

If you don’t specify your electrical cost we have no way of knowing. Regardless of that the S3 is a reeealy old miner and unless you’re using this as a quiet heater or something of the sort it’s really just a collectible. With no difficulty jumps you make less than $100 a year at 10 cents per kilowatt and difficulty jumps will make the unit even less profitable.

Go to Aliexpress. You can get used parts for cheap. Probably get an entire S3 for little and have another for parts. I love the hobby, electricity for me is cheap, so I play the lotto game with miners. Ignore the noise, roll the dice and mine away!

So I got an S3+ to play around with as a heater and when i was setting it up i noticed wifi was an option so I set it up that way. It was happily mining but I didn't have the hot air blowing where I wanted it so i unplugged and rotated the miner.  I figured out the hard way that I don't have a wifi antenna and now I can't get the s3 to connect because there is no wifi antenna and no matter where I move it it no longer connects so it's ip doesn't come up so I can't reconfigure for lan. I have tried holding the reset button but it didn't do anything after that just solid red light. I've restarted and tried resetting it but nothing can connect with it.