Chosen Solution

I replaced the charging port on Samsung Galaxy Note Pro 12.2 (it was bad), and now I get the error NO SIM even though the SIM works fine in another tablet. Other than this, the tablet works fine on WiFi, and the SD card works fine as well. How did I get the sim card Working? Thanks in advance. Steve

It seems that there are two charging ports: One for the Broadband tablet, and one for the WIFI tablet. If you get the WIFI tablet port, you can’t access the SIM card. That was my problem. I am not looking for the proper cable.