I'm not seeing a part number on these. Should the voltage be the same on all 3? I'm getting 1.2v on the top one then 30mv on the other 2. Is there a way of disabling the BMC?
There is some writing on them, but i can only glimpse it under a microscope and special lighting.
I am very sure that they are not supposed to have the same voltage, or just 0.03V on the Output.
So you for sure have a problem with the voltage regulation of those two, likely preventing the BMC from being able to do its job.
1.2V sounds like it is for the Dram of the BMC.
Other voltage ranges that i would expect / suspect on those are 1.0, 0.9V, 0.8V and 1.8V.
Nothing i have measured, so reality might differ but i have no good board to check.
If you are sure that you did not hit those ICs with anything and there are no scratches visible, RMA with SM is a good idea.
In any other case, SM will likely refuse repairs, service and replacement.
" Besides that, what about the burn mark on that part? " - Since I have no idea how to fix it even if that's something wrong with it, I would put it on hold until I know whether the flashing, if any, could work.
Thing is, as long as those parts are potentially dead, you can absolutely forget about flashing.
If that Voltage-Regulator IC is busted, the board is absolutely without any doubt defective and no firmware can ever make it work.
I can only recommend you take good closeup pictures where those ICs are clearly visible and where you / we can make out if they are an issue or not.
If we find that they are not an issue, please go ahead with flashing, i wish you much success and hope it works after that.
If they are indeed really busted and burned, don't even try flashing.
Pictures first, flashing later.
At least that is what i can recommend and what makes sense to me.
Everything else can come after we have seen better pictures.
So please, post good pictures.