820-3437. Got it working but will not turn on after SMC reset

[G.Beard]

Hello.

820-3437 liquid damaged corroded traces around SMC. The board was fucked up further by an idiot with a soldering iron.
Got the board working, reassembled the MacBook and did a clean install. SMC reset the machine and now does not power again.
Tried another trackpad and keyboard but still no power on. No sighns of corrosion any closer to the SMC than edge bonding.
It was working, now it don't.

Traces re-soldered:
SMC_TMS from R5177 to SMC
SMC_TDO from R5178 to SMC
SMC_INT_L from R5193

 

[larossmann]

i bet corrosion under the smc.

 

[G.Beard]

Yeah, fucked if I'm jockeying that one right now.... Another day maybe.
You have a link to good SMC stencil or shall I open a thread in tools forum?

 

[dukefawks]

Just a bit of flux and heat on the SMC, do NOT reflow. Should be enough to clear the crap under it.