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TDA4VM: keyWriter add-on package

Part Number: TDA4VM


Hi, 

I'm reprogramming a driver base on the keywriter_patch. The function Sciclient_loadFirmware always returns CSL_EFAIL. 

Then i checked the user guide, and found that  "the TIFS keywriter binary differs from the standard TIFS binary used in production."

It is said "OTP keywriter add-on package has the necessary firmware and TI FEK public key required to build the OTP keywriter example application." in pdk user guide.
So how can customer get this "OTP keywriter add-on package"?