u/nikitasius

Hi folks, sadly can’t add photos here so if you own Xiaomi S1 pump and suddenly it display ER9 (which looks like EA9 lol), there are small wire that was disconnected. And this wire is from pression sensor.

The only you have to do is to open your pump and connect it back.

While you disassemble your pump is still power the motor (5 contacts on a main pcb), so pay attention to your fingers.

There are 2 wires connected to top and bottom of the front PCB (with buttons with screen).

The top one - is for the control you don’t need to touch it. The bottom-left one - is the one from pression sensor. Just gently plug it back and add a drop of glue (best some polymer), cause it’s close to motor and get all the vibrations and idk why Xiaomi didn’t protected it well.

Once it’s connected your pump will work well.

If you have good skills you can tie well all the screws inside including the sensor too. But, as i say, pay attention to fingers :)

Hi folks! I’m a proud owner of kc761a https://www.reddit.com/r/Radiation/s/Erhp8Jbwmz

HW 1.2

FW 1.59

Co CPU 0.8

I see that they are added features I requested, to have a catalog some time ago ❤️

How it’s safe to upgrade from 1.59 to latest? I read for 1.95 « One upgrade may not be able to burn the coprocessor firmware successfully, after upgrading, please go to the device information page to confirm the coprocessor firmware version is v1.1. If not, Please redo the upgrade. »

Do progressively all FWs or jump to latest?

The latest to target is 1.99 🎯