OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › error 0x2D but microsd is present on firmware 2.1.7. › Reply To: error 0x2D but microsd is present on firmware 2.1.7.
So the characters just remain black and the screen won’t display anything else? This is rather strange. I don’t think I’ve seen this problem before. If you unplug the 24VAC (orange) terminal block, and instead use a USB cable connected to a USB adapter to power OpenSprinkler, does it behave the same way?