The process about extract MCU firmware involved : A. Please send an inquiry by skype, email or call with description of protected device you have. email:techip688@gmail.com skype:techip.mcu.01 tel:0086-15313166205 B. Our staff will response quickest with quotation and delivery time for service. C. Ship us the protected device, along with at least two or more not-programmed samples. D. Before extracting the code, you need to pay 50% deposit by Paypal. E. after making sure we had done our job with success, you will need to make final payment to receive the source code( .bin file or .hex file).