I got a techno 8h droid tablet to install my phantom 4 advance,but to my amazement my controller could not configure my phanton 4.
pls kindly advice me on the type of DJI GO apps to download so that i could configure my phantom

I’ve never heard of anyone trying this tablet. The specs are not great, so I’m doubting DJI GO 4 will perform well if you do manage to get it running.

What exactly isn’t working?

As msinger mentioned I can pretty much assure you that this device will not work with DJIGO4. Per the specs, the device has only 1 gig of RAM and the processor is extremely slow. You need at least 2 gig of RAM specifically for GO to function properly.