After trying to download this product for 2 hours, it was discovered that a defective USB cable came with this product. It transmits data about the device via the RS485 port connections to my MT50 and PC with an RS485 cable for monitoring via the Solar Station app. But when I tried to download data via USB, my USB mouse was disabled on my PC and never showed up in the ports in Device Manager. Anyway, I took it home where I tried plugging my own mini USB cable into the USB cable and it came right up. So it is obvious that they sent a defective USB cable with the device. Further. I would try to clear the memory and start wiping so I tried pressing the reload button for 5 seconds to no avail. I took the case off and finally found that after fumbling with the reset button it got stuck after pressing firmly and hearing a click that released it to be pressed and finally allowed the device to reboot. I have two Epever charge controllers that work fine. This simple device has undoubtedly brought me a lot of heartache and time due to poor quality control.
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