Originally Posted by Neo3D
Didn't work for me
Replace the original SD+ Sim flex with SD flex from SM-P600 ( wifi ), it has a SD reader and dummy space for SIM slot.
So it won't bother you with this notification as no SIM reader connected to mainboard.
LTE and Wifi parts are interchangeable. For example, I install a wifi mainboard SM-P600 to an LTE tablet like SM-P605 or SM-P607 without problem, except rear camera.
Rear camera of wifi model has to go with wifi mainboard, all other parts no need to change.
I can downgrade an LTE to Wifi model with ease, applied to all Samsung tablets: LTE is upgrade version of Wifi with added SIM reader , antenna, and chips for cellular signal.