-N900 weird Mainboard , unknown devices

Hi , I got 2 SM-N900 to repair Imei null issue . both of them are really weird , that is my first time to see that . when I do *#0808# and select ADB+MODEM+MTP to connect on pc , pc detect them as Unknown device , but when I connect the phone on PC without set ADB+MODEM+MTP Computer see them as normal device . so I decided to open it a try fix it by emmc Jtaging way . and what has been my surprise ? PCB are totally different with the picture I saw on Pinout picture , I tried to use ATF Emmc pinout finder without succes. I checked all the resistor and Point around the emmc chips but 0% helped to find even 1 pin . so I wanna post Picture here to get your idea . if people here got same things in hands !