Sat signal 0 on both tuners , 2 dishes/lnbs tested - faulty box?

send it back so... or go for another opinion, i.e . try yet another dish with up to date settings already installed then try it...

another way altho a bit of mcgyver would be to add a sat meter tester between box + lnb it will tell you if theres power from the box apart from signal

Open up the receiver to see if the tuners are connected correctly inside - tuners in the Qbox are rem***ble, and are easy to check - each tuner should fit firmly on several rows of pins, and one should overlap the other, and then is kept in place with a screw. Inside there are also 2 patch leads running from the tuners to the input and outputs on the back of the receiver. Make sure these are tight and installed correctly.

because the unit has plug and play tuners, you would usually find that the warranty is still intact - I know that if it was bought from sat-shop for example, they would accept a return from the original purchaser within the warranty period. These boxes are usually quite good, wondering if you have tried reflashing it?

Open the menu and go to the channel search, tuner configuration and make the settings of the tuner, should be enabled, not enabled automatically. put the settings according to your system.