A:AnswerThe GALAXY Grand Prime is similar to my S5. It has a Micro USB connector in the OTG (On-The-Go) configuration. I'm going to guess it should work with your GGP, but I can't be positive. The MHL HDMI adapter DOES work with the GGP, so it looks pretty likely.
A:AnswerThe Galaxy S5 has a special port for its charger cable as it charges lightening fast. The adapter is specifically designed for the S5 and therefore will not work with the other phones. I know for sure it will not work with the S7 Edge as the charging port is back to standard android charging.
A:AnswerUnfortunately, the Samsung Micro USB to HDMI adapter won't work for you . It was designed as a special 11 pin out to the port on specific Samsung products. And for the most part the Toshiba C655 only came with two usb 2.0 ports.
The good news is that you can purchase an external usb 2.0 adapter that will connect to an HDMI cable and give your laptop the ability to send the content to your LG TV. YOu will need to obtain at least a good 14' HDMI cable for this purpose which will connect to the adapter and then to the female port on your TV. The only other option aside from this is to purchase a new laptop with a built-in HDMI port.