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Got this board here which had no power. PP3V3_SUS was low, only 0.45V. I found corrosion under U8020, so I replaced it and got back PP3V3_SUS to normal. Now the board pulses all S0 rails in loop but does not turn on. I inspected whole board and could not find any more corrosion in it. Any ideas?

Got this board here. Left USB ports were working only for charging but not for data. They would not send power to USB devices, so I replaced U3500 and it started overheating USB devices connected to any port and would not mount them, so I replaced U3500 again, still same issue, it even burned an...

Got this board here completely dead with a little corrosion around C5010, which mad the trace between it and the pad passing through SMC to evaporate. I ran a wire to rebuild the trace and now the board has green light but only quarter fan and dies, no loop, just a single spin and dies until I...

Got this board with really strange issue. It runs normally, works everything, except when I put it to sleep. When the machine enters sleep state fan goes full blast and stays like that until I wake it up. When machine wakes, everything goes back to normal, fan goes back to normal RPM and system...

Hello. Got this board here. It turns on, charges battery, works perfectly except for left USB ports. They can charge battery via USB-C but no USB devices get detected on them, not even get power from USB on USB mouse or any other device. The board had corrosion near U3500/5850/3906 which I...

Hello. Got this board here with 3v3_s5 stuck at 0.6V. There's no short on that line. Already replaced U7501, C7564, C7588, Q7560. Still same. Any ideas on what the problem could be?

This board came with no power. Stuck at 5V. After inspection I discovered the 2 left USB-C ports keep resetting the charger. After some measurements I found that PP1V8_UPC_XA_LDOD is giving around 3V instead of expected 1.8V. I then replaced U3100 as it's the component that generates this...

Hello! Got this one from another shop here and it was missing U3100. I placed it again and had to run a little jumper to establish connection between R3109 and PIN 37 of U3100. Board pulls 5V and 0.25A from charger but won't negotiate 20V. I have 12.24V on PPBUS_G3H and T2 gets a little warm...

Got this one here and it was not turning on. There was corrosion around U3900 area and some missing resistors there. I managed to get the board working again after placing missing components and cleaning up the area. Machine is working ok, except when I connect power to left USB-C port nearest...

Hello. Got this board with a strange behavior. CPU clock is stuck at 0.8GHZ according to Intel Power Gadget and the machine is running terribly slow. This board has classic issue on R5301/02 area and on the under side too. Verified all resistors and traces and all good. Mouse moves normally...

Hello. Got this one here with no post. VCORE stuck at 1.08V. Tried flashing BIOS, same results. Verified all termination resistors, everything OK. CPU gets warm. Tried heat and flux around CPU to see if there was any crap under it, still no good. Any ideas?

Hello. Got this one here, which I'm thinking may have a NAND problem. It does not turn on, don't negotiate 20V with charger, BUT, after taking some measurements and inspecting the board a little under the microscope I found that PP2V5_AWAKE_NAND is around 3.5V oscillating and UN100 gets a little...

Hello. Got this board here. Very clean, no signs of corrosion. It negotiates only 5V with charger. Already checked for shorts, no shorts found. Replaced both CD3217, same issue. Tried replacing U7000 too as I'm not getting CHGR_EN_MVR, but same result... I'm stuck... I'm not good at this new...

Hello. Got this board here. It's a return actually. The first time this board came here it had been all poked by another technician and there were 2 CD3215B1 in place of C00. After a lot of work I made the board work again. It worked for 2 months and this week it came back again with no 20V on...

Hello! Is there any way of charging an A1706 MacBook Pro battery using a bench PSU? I ask because I have one here that got over discharged and is giving only 2.5V and is not charging with original charger. I want to try to revive it. I do this with iPhone batteries just by putting 5V on PSU and...

Got this board here for rework. It came here about 2 or 3 months ago for repair... On the occasion it had a short on 3v3 line that was preventing machine to turn on, also some corrosion around U7100, which I cleaned and replaced. Machine worked well for the next 2 or 3 months and yesterday it...

Hello. Got this board here and it was not turning on, shorted PPBUS_G3H line, which I traced to bad U7330, which I replaced. Board worked perfectly yesterday after the replacement of that chip, I turned off the machine and left it sitting on the bench to finish assembling today. Today, when I...

Hello. Got this board here that shuts itself down when stressed. I thought initially it was bad battery because it was indeed bad. So I replaced it three times and same thing. Decided putting in an original battery that's working perfectly on another machine and problem persists, so I discarded...

Hello. I got this one here with very strange behaviour... Machine was not turning on. I reseted the SMC and machine worked perfectly for some days. Gave it back to costumer, after some days she brought it back to me with same problem. After replacing the battery machine worked for a whole week...

Hello. Got this board from another store. It has already been poked/cleaned, so I don't have its history. Apparently no missing components. If I plug USB-C charger I get 5V on FB200 and F3000 does't matter if the USB-C cable is reversed or not. On the other 2 fuses I only get 5V if it's on an...