actually bro, may be its not solid 2100... but a new firmware for solid 3000 with b##s key support.
This firmware is quite gud..
earlier signal never used to go beyong 75, now it goes to 90%.
moreover while tracking, it gives a signal fluctuation of 8%-10% which gives u an idea, u r close to d signal, earlier firmare didnt have this feature... and required exact tuning for d signals to appear.
How is solid 9300 better bro ? do u have its firmware ? and will it work on solid 3000