A search will give many suggestions on this. I have an older Tab A and had to roll back Go 4 to a version that worked (4.1.15). You may need to experiment to find one that works for your Tab A. Then turn off auto-updating, turn off all other apps, and fly in airplane mode. Also use a quality USB data cable. Someone will eventually suggest getting an iSomething but if you have the time to experiment you should get your Tab A working with Go 4.