Hi, I am writing because after we changed our supplier we suddenly experienced a huge failure rate in our pressure sensors when our PCBA's arrived from our supplier. Both us and our supplier are a bit lost in figuring out the cause of this. until our...

Hi. I am trying to program my stm32F072RB using the build in boot loader. I connect the user USB to my PC with BOOT0 pulled high and sure enough it does detect a dfu device. (the serial number looks fishy though?)Now if i try and connect it prompts m...