![]() ![]() You do need to buy the CSR SPI chip from Digikey as the SPI interface is proprietary.įor the firmware files themselves you are going to need to get them through one of our more specialist distributors as we do not have any on the source (not good I know). To use Blueflash you would need to use the SPI interface on the modules which is good because it is far faster than any other method. So the procedure to downgrade once you have tool is a… ![]() I have written how to up/downgrade the BC127 a few times on the forum but you can use the DFU wizard which is a available through the CSR support site at the below link, you obviously need to create yourself a login first. The protocol has not really been changed by Sierra/BC but the loader tool has obviously been upgraded/changed in the past to cater for various changes external to the protocol. BC127 downgrade firmware WiFi and Bluetooth Modules ![]()
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