The mod was not worth doing, and now my A channel is not working. I will probably need to replace an expensive IC and this device was ridiculously expensive as it is. Is there anyone on the planet willing to bothering opening theirs up and risking likelyhood of the plastic case not sealing completely back up again when they could just sell the damn thing and wait for a MUCH better portable scope somewhere down the road?
As far as any signal “improvement” on the remaining B channel, I see basically none. The limitations at 2MHz and above are obvious before and after the mod. Frankly this leads people to believe it is possible to fix the gaping flaws in this device when it is not. I would almost suspect that bielec may have had his silkscreen labeled with components in different positions, but this seems unlikely.