@ willgeorge - What is it that was bought, the Segger J-link or the little board on the connector? The Segger J-link education model is only about $35 i think from the last time i looked.
Be careful when upgrading drivers, i had one of those el chepo Chinese debuggers, worked well for 4 months and then stopped responding all together. Later i found out an update which came down to support more micros had detected that its not an original one and disabled all its functionality.
Gave up and bought an original Segger, worth the investment…
I personally will never spend another dollar on Geeetech crap. I originally built my 3D printer using one of their Printrboard clones. It worked OK for about a month then the components literally started falling off the PCB. Not worth the hassle just to save a few bucks.