You don't have to reflash firmware if you recompile bmminer to use fixed frequency. Then you just replace bmminer.sh on the miner with your modified version.
Hi Tazers,
Thank you for your reply.
The first step of your Upgrade Instructions is to Flash Fixed Frequency firmware.
That's why I thought I need to replace the auto-freq firmware with the older fix-650M one, before I can replace the bmminer.sh with your modified version.
Now you say I don't have to do the first step? Just want to confirm that.
Okay, if you said that, then I will skip the first step and go to the next ones. Hope it will works.
Thanks again.