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don't have a BGA machine :(

even though it can run off of batt after i start it on AC? damn so close

maybe too much heat/time on ISL when I was putting it down? Do you think I should try another one? pins 17/18 still giving 21.1k resistance

nope, doesn't see battery and BIL doesn't light up

replaced the ISL and now it's running off of AC but still no battery, everything else looks fine any ideas?

R7040 is still there also is a 6258AHRTZ i assume the ISL rework and everything was working until a shitty charger did something to bring it to where it is now could the ISL gotten fried and everything else be fine?

this board has been worked on by someone else before, U7000 looks newer and they put a resistor between c7041and c7040 magsafe green light comes on, but won't charge (no PPBUS_g3H) unless i hook up a charged battery, then will actually power on. but won't power on with battery only all current...

any other ideas? i was thinking maybe it was an inductor or something like when a USB is bad

really not sure where to start, guess i'm going to have to go thru and measure every line and hope something shows up weird, powers on and fans run high but no post. there was residue but almost no corrosion. only real corrosion was around some USB caps (C4605, L4605 and C9480 and C9481), I...

PP1V05_S5_MCP is reading 1.1V, is that too much?

so PPVCORE_S0_CPU is reading .99V instead of 1.25V CPU is getting warm which brings me to the U7100 circuit where I was already thinking of doing the poly tants C7117 and C7155 i've never worked on this circuit before, going to watch some more rossman vids, any other suggestions/ tips?

I've gone thru 4 cables with the original hd, before trying the ssd tell me i'm crazy

have a mbp 13 which is going thru hd cables like crazy, to the point that I know its not the cables brand new ones will usually work for like a week or so, and then no more for example i just put a new cable and ssd and before i can even transfer a whole system carbon copy is giving a crap load...

no definitely no spill that far over next to U7100, all of it was between fans and the ports, U3700 to U9500. i'm waiting for some 22uf to arrive to try a few more. i replaced with standard cap where i could and unfortunately by new poly-tant on what i couldn't find/afford easily

820- 2532 slightl liquid residue on bottom of board between ports and fan, cleaned powers on but no chime/post, randomly/intermittently every 8th time or so will turn on and work, but on restart not guaranteed to work again, once truly warmed up will usually be able to restart and be...

Thank you so much!

Hi everyone, I think I have the boardview for 820-3208, and am currently working on a 820-3208-A. The area around U7000 (where I think my problem may be) looks vastly different. Does anyone have the boardview for 820-3208-A?

Was around 4ohm between 17/18 and 20 or so between 27/28. Replaced C7121 and C7122 and now resistance is 0, but still having the same issue.

Thanks! After testing all of them, found 2 were bad. Replaced those and still having the same issue though, any further suggestions?

Apparently there is more wrong with this than previously thought. I thought everything was fine after putting on a new screen. However that was apparently only running off battery, but not from charger. With a cord the screen shows the charging battery but never actually does...