MeshSolar - BMS problem - "Parameter config failed!" error

#1

Hi guys,
When I go to the BSM Web config page ( https://flash.nmiot.net:3333/ ) & enter my batt cell
details etc & click save, it pops up & confirms Config saved, then immediately has another popup stating
"Parameter config failed! "
If I disconnect & reconnect, all fields are blank again & it hasn’t saved my config.

Second problem, and possibly THE problem, is the BMS status is “Protect Status: ASCD,EMSHUT” .
I understand what these mean, but my wiring, batt solder pad shorts on back of board & batt cell dip switches all seem correct. Have also tried uploading firmware again.

Any idea what’s wrong with it? Screenshot attached.

Thanks

  • Mitch

Screenshot%202025-09-17%20124648
Screenshot 2025-09-17 124648.jpg1146×853 78 KB

#2

I have the same problem with the “Protect Status: ASCD,EMSHUT” notification.

I have a brand new MeshSolar with nothing else connected anywhere. The device works fine when there’s external power via the solar input and says “Protect Status: Normal”, but as soon as I remove that power the board dies. If I power it from USB-C then it says ASCD, EMSHUT.

And, because there’s no schematics published for the board, it’s really impossible to debug what’s happening.

This has honestly been the worst product. I deeply regret buying it.

Any help at all would be greatly appreciated!