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R7402 @ 91.3k Pin 1. CORRECTION 3.31V Ping 2. 0.3v but after probing pin 1, jumps to 7.74v (only when fingers are resting on probes - so with high resistance from pin 1 to ground, pin 2 gets 7.74v for a few seconds.)

Hello all, So I have a MBA 2011 A1369 (EMC 2469) that has no "deadly" signs of water damage. (fly piss on a cap - cap tested fine, cleaned well) There is no chime or beeps, but most all S0 power lines come on. ALL_SYS_PWR_GOOD is high,fan spins, green light, then amber. The only voltage i...

Hey Duke! So, i tested it with a cracked screen - had back light and some image. The replacement screen i got does not work though. Could this be an EDID issue and are there any solutions to this yet?

Follow up to a previous post: ------- Hello all, So I have an 820-3332 that had it's screen break off. The client still used it for a few months until it started to cut in and out (no hinges to support it). I received a replacement lvds cable but still no image. Checked on our ol friend and Mr...

HA! i just came back here. Finally go the new bios to work, wiped the ssd, installed el capitan, and went through the update to high sierra... guess email notifications for post arn't working that well for me....

I just I could make a time machine backup - they need their data data on this one, and it's already made me nervous a few times. Then try the reinstall

Would installing to an external USB ssd work for this?

Thanks Duke! So, i wrote this bios, installed it and am getting a problem detecting the ssd (blinking folder icon) I just installed the original bios chip with its programming (the dump i sent) and it boots up fine. Can a bad bios value cause no ssd recognition? (i did not try a bootable disk...

Alright! Thanks. If there is a good PM system here, could you point me in the right direction to modify certain parameters in the bios for the future? I have migrated the ME region before, if that's what it's correctly called, and this is the 2nd MacBook pro hat I've come across with no serial...

Found a broken but kinda operational test screen. Backlight comes on and there is some image blinking a min after booting with no SSD (folder with ? im assuming) So, theres the answer to this question. Thanks and solved

Hello all, so I have an 820-3332 that had it's screen break off. The client still used it for a few months untill it started to cut in and out (no hinges to support it). I recieved a replacement lvds cable but still no image. Checked on our ol friend and Mr. Shoe rubber was installed... So he...

Here is the original dump I got. The system Serial is C02N55EYG3QH. As a side note, why can I not upload the .bin using the Upload Attachments?

I did replace u6100 - but I copied the old one to the new one. I'll upload it tomorrow - or I guess I could stick the original one back on? Now my question would be, why did my copy and verify not go how it was supposed to?

SMC swapped out and now the ACOK is working fine. How odd. Another random thing, The system reports that its SN is Not Available. What is that related to? It is running High Sierra

well, i sure messed that one up. I guess before my coffee. I said ppbus_g3H but i meant PP3v42_g3h. I have a 20ohm short between pp3v42_g3h and SMC_BC_ACOK. Still pull the smc?

Update. I have now removed U7100, U7001 and R5187 and the 20ohm short is still there. Before I pull the SMC i want to see if you have any ideas. Also, yes, J6100 has no corrosion. ACOK is being held high.

So, seems I have a 20ohm short between ppbus_g3h and acok. That was with R5187 removed. I replaced U7001 and its still there. Causes could be could be U7100 or the SMC at this point, Correct? As they both have a path to g3h. Most likely though, it would be U7100?

Ahhh, that makes more sense... So, Ill check that out tomorrow when I get into the shop. J6100 looked good from what I remember. I didn't see any sorts of liquid damage and I did go over the board 3 times or so, because I was at a loss. Jtag or similar looking connectors are normally ones i...

Hello all, Received this one and it would not boot past the apple logo. Well, it seemed like it would loose power or reset just a second after the apple showed up. So, with no physical damage on the motherboard, i took a stab at the bios. Pulled it off and stuck another on. It ended up booting...

Oh yes, it's changes to the EFI that I make. So that explains that one. When the SMC gets written to the newest version, that is basically resetting it - to the newest version? Or do we know if it retains some "calibration" values. I do know that an SMC reset would take care of some odd battery...