Question: By using a tablet with a 3G4G LTE module the SIM card must be inserted Devices which do not have a SIM card slot and GPS module are incompatible
Please fix the punctuation.
Fixed: [By using a tablet with a 3G/4G (LTE) module, the SIM card must be inserted. Devices, which do not have a SIM card slot and GPS module are incompatible.]

Question: The Function keys work primarily as function keys in the traditional style
Please fix the punctuation.
Fixed: [The Function keys work primarily as function keys, in the traditional style.]

Question: The program requires Java has been installed
Please fix the punctuation.
Fixed: [The program requires, Java has been installed.]

Question: In these cases damage was none of the above risks the cause of the damage
Please fix the punctuation.
Fixed:
[In these cases, damage was none of the above risks, the cause of the damage.]