Samuel Sapalski

I can confirm that the module shown as the bad one on the photo doesn't work with RN-42 firmware. Reverting the module to the original firmware brings it back to...

@witnessmenow Can you run the two commands I've shown on the good unit? **e2cmd.exe info BlueFlashCmd.exe identify** My assumption is that this will show a BC4 device (BlueCore 4)! If...

@witnessmenow Many thanks, this looks like my assumption was correct. I will compress the information to the relevant parts: **good board (rn-42 firmware):** ``` $ e2cmd.exe info Chip ID -...

Yes, these are counterfeit chips with BC3 compatible HC-05 firmware and thus not usable with RN42 (BC4) firmware. The csr-spi-fdti driver works fine with these chips!