Can you trade in Xbox 360 with red light to tesco?

No but here is how you can try to fix it

So what you can do

before you do anything disconnect everything from your xbox that is attached to it, Pull out the hard drive then clean the xbox very well with air dust can then put it back together put in harddrive and attach all the accessories back and see if it works if so great if not

now go on YouTube and find guy named Gilsky he shows how to take PS3 and Xbox apart and how to resolder the CPU and it will work again.

OR

You can send it to Microsoft and they will charge you money unless its still on warranty.