Dear Jurij thanks for the answer but i ve tried lots of paperclip or cable but anything has worked so no new device shows on device manager, maybe problem is from the notebook i will try on the desktop computer i don't think it's possible to connect on mainboard of notebook usb port . Then 'll tell you what's happened.
hi can you help me about using testpoint with c5503, i do everything but my computer never recognize phone when i touch the testpoint via cable or paperclip, if you are sure that points are the true testpoint on the picture i think i do somethings wrong , phone just flashing red light without battery when i connect with usb also when battery is in the phone any of the light works and buttons not working, phone just bricked when i was flashing new version of stock zr android rom, is it possible because i use windows 10 x64 ? waiting for help thanks.