Yes it is sony 2.1 SLIC idk why its not working for you i couldnt get the sony key that was on here to work so i just used the lenovo one and u can open it in a hex editor and see its 2.1
bump for tx1220 slic 2.1 (Similar to tx1000, just more/less ram, HD, etc. I think motherboard is the same.. Nvidia 6150?)