That's what I thought, but BITMAIN_Janet's post made me re-think what I knew about these.
Please upgrade the latest firmware if it still can start to work..RMA is accepted if it is still working on 45G at below codes:
cgminer.exe --bmsc-options 115200:0.54 -o stratum.antpool.com:3336 -u antminer_1 -o p2p.antpool.com:25 -u antminer_2 --bmsc-voltage 0830 --bmsc-freq 0982