Thats why i switched to an tnm5000 (300$) it was a very good programmer, loved the isp, jtag, spi port, but after a month i had no choice to switch to a even more powerful programmer an Dataman 48pro+ a 83,000 + parts ... my most expensive programmer i've bought yet (1000$)
Now i can do jtag, spi, isp devices like tnm5000 but can do much more powerful chips at my job and home.
There's always a catch or something ... the tl866 "13000 parts" is false, if you crosscheck AMD Intel and other brand parts that count is lower ... same thing for other brands of programmers.
Tl866 is good for starters, but it lacks support really fast
I had fun to begin with it, but frustration and no added chip support updates.
Sorry to tell this, but
be aware of the tl866 limitations, mostly the "genuine" bundled adapters who came with it have encrypted eeproms id's.
That finally turned me off, when the software updates had rendered 2 of them useless ...
Peoples expect too much of it.