Waiting for a call from my electronics tech.
I think that I may have plugged one or more of the points into the ports the wrong way round so no sound.
I bet it's something silly like that.
For those who aren't happy with the existing preamp, have you thought about the NE1 preamp pedal?
Gives you the chance to emulate Mr East without having to touch the innards of your bass.
There's one on ebay currently for £60 IIRC
Available on many Chinese and/or sites IIANM. 🤥
https://www.ebay.co.uk/itm/325706558229?hash=item4bd59fab15:g:-rwAAOSwtk9kkqag&amdata=enc%3AAQAIAAAAwIA7KRszsFD38vnX6SLLIp286GVJiKx7m13ifC2upbL5M7TiSdH9M3Ulh1FnX0y9RKz7vEX%2BS7v2FlXBwcMfffnUNF2Dv8cou47X3yppNnPNOc%2BpAI4GRwUgD5ozJ1YOh9xOBrhX%2FwZtXZBl1msTFwM5tXHXTQuR2Z0wo8KPFi8KjJN3Zgj%2BGZclLiWkaGI%2FDyvPSc%2Bu%2F2T3X5FnuAj7cymDkE98h1GQznJHOQvmqoUE27mvcOEqAPLCZcqRST1VNQ%3D%3D|tkp%3ABk9SR5CR0ICfYg
I keep seeing red ones for sale but rarely any black ones. I purchased a short scale Ray instead when one came up in all white.
The mini Squiers seem to be very desirable for very little IMO.