The LG G Pad 7.0 LTE was released in 2014. It is an Android based tablet produced by LG. This tablet has a 7 inch screen and a 1.2 GHz Quad-core processor. The model number is V410.
There is a possibility that either your sd card is faulty, or the reader is damaged! Try using a different sd card, if that doesn’t work it might be that the reader is damaged or dirty!