Ah, FW3202 platform tools has a weird english readme, not like the others, and it's missing the PDF file.
Will correct it.
Edit: Actually most Readme files were wrong!
Made new ones, you can check it out
here (If Hantek can't properly make a simple Readme, guess their programming quality lol).
Added usb fix, serial/model/Pcb fix and FW versions, so everything required to restore the scope comes in a single package.
Created new update package for 2022.09.21 software, keeping only the the update of the software (The FW isn't updated forcefully). Apparently It just updates Russian translations.
Created new FW package, adding FW3205. Seems for 3200+ only, breaks calibration on FW3000-3102.
Updated all Platform-tools packages with the new Readme and fixes.
(Edit:2022.09.28 was the same software as 2022.09.21, it just enforced the FW3205 update. So renaming to 2022.09.21.)
BTW, CH1 had became a lot noisier than CH2, picking up high frequency spikes of about 100mV.
Fixed by just twisting/pressing hard on the BNC connector! SO just try that if you're having a similar issue.
Both have now a noise of about 1/5 division at 2/20mV/div (1/10x).
Edit: Tapping on CH1 BNC creates some rattle noise, probably the nut is loose from one of the thousand times I opened it, which would explain the RF noise.