Connections

Hi,
I have designed new board with help of Q2686 development kit user guide .
We have also bought some q2686 module and evln kit.
I have attached the schs of my design …
I powerd up the board(designed borad, tried with both 3.3v and 4v DC supply)… but its not working…
I tried synch with PC using M2M studio(similarly the way I was doing with the evuln board) but unable to connect the board…
And its not genarating the 1.8v(for sim) and 2.8v from the internal ckt of the module…
and also I replaced the preprogrammed module( for SMS services to the new board), but it SIM itself is not subscribng …
what may be the problem…
pls help,…
thanks
chethan