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Cleaned the ME of the original bios, macbook boots fine now, I'll clean the ME's of bios's manually form now on rather than blindly trusting ones posted online Thanks

No I didn't, I have to be honest I can't remember where I actually got the image

I have a 820-00165 here that seems to work fine in EFI however will freeze while loading the OS. This happens when booting from the SSD or from USB, replacing the SSD made no difference and the RAM has been tested with memtest and passed fine. I initially thought this might be a firmware issue...

SMC_LID was missing on Q5701 & R6961 but was present on R5071. Just ran a jumper all the way across the board and now the KB and TP work fine in the OS. Still confused on how I had the macbook booting before when I apparently had a short under the SMC but at least it is working now.

Reballed and reinstalled SMC and macbook now powers on fine. Now back to the keyboard issue's Both the keyboard and trackpad work fine in EFI, neither work once the macbook has booted a OS

OK, PP3V3_S5_SMC_VDDA was shorted to ground and L4901 had come off the board so I wasn't seeing a short on pp3v42_G3H, Removed and cleaned the SMC and board both show no short now so I must have had shorted balls under the chip. Will reball it and report back

PM_PWRBTN_L is at 0.03v The cable on my bench supply works fine on another macbook, looks like it is time to order a scrap board from china as I don't have any 3115 scrap boards that still have a SMC on them

Yes the board did work after replacing the SMC, it only stopped working after I started looking into the keyboard issues again. I did try reflowing the SMC anyway which made no difference With the bare board on the desk I am still getting 12.23v on PPBUS_G3H, SMC_RESET_L is a steady 3.44v...

No, the SMC I eventually fitted had all it's pad's intact SMC_RST_L is 3.42v PP3v3_S3_PSOC won't be present as the board is no longer powering on

I have a 820-3115b here with no power and no green light on the charger pp3v42_g3h is present as is ppvrtc_g3h, ppbus_g3h is 12.23v, pp5v_s5 & pp3v3_s5 are missing this is because SMC_PM_G2_EN is missing. Board is pulling only 13ma from the charger. I'm guessing bad SMC. Board was originally...

OK, I removed the PCH today and found a pretty large number of pads on the right side of the array where missing (Which makes sense as the board was liquid damaged around that area) so this board is now scrap Thanks for the help!

OK, I tried heating the PCH with flux under it, it has made no difference

Ahh ok that makes sense, I'll go ahead and give that a try I found my oscilloscope and have confirmed SYSCLK_CLK32K_RTC is oscillating at 32khz

The Voltages are as follows: S5_PWRGD = 3.453v PCH_DSWVRMEN = 3.177v PM_DSW_PWRGD = 3.466v SMC_ADAPTER_EN = 3.450v PM_BATLOW_L = 0v RTC_RESET_L = 3.301v PCH_SRTCRST_L = 3.300v PCH_INTRUDER_L = 2.993v PCH_INTVRMEN_L = 3.193v I had been assuming PM_BATLOW_L would be low as there was no battery...

I have a 820-2936-B that's missing PM_SLP_SUS_L (and therefour i'm not getting PP3V3_SUS or PP5V_SUS) PP3V42_G3H, PPVRTC_G3H, PP5V_S5 and PP3V3_S5 are all present and correct, R7918 measures 99.9K so I can rule that out and am also assuming U7940 is OK as there it no short on PM_SLP_SUS_L I'm...