How to flash genuine HM-10 firmware on CC2541 (make genuine HM-10 from CC41)

Using Arduino Networking, Protocols, and Devices
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ani idea what I do wrong ?
Pins 7,8,11 soldered on CC2541
I try 5v, 3,3v with and without resistor on pin 12 always same response.
NO CHIP DETECTED !

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