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well, i have apple recovery tool, but there's definetely no lifeboat connector on this board. Both unsoldered ports are pretty far away from SSD, so i guess they are something like CPU/PCH debug ports like on other boards.
these two boards look somewhat similar, at least schematics should be...
Hello everyone. Macbook Pro Touchbar 2018 here.
A little bit of waterdamage, SSD is not recognized anymore. I have no experience with the new models since in Germany almost all Apple customers buying apple care. This one did also, but surprise, he did not use icloud or time machine.
No...
i use Dell power brick and this pass-through multimeter. it is really cool since it can actually graph amp usage, so you can see detailed power sequence...
i guess it is caused by people who reflash bios just to rule it out. i actually do it on almost every PC Laptop i fix, but i always fix ME and serial number before i give it back to a client.
i used ISL 6259 all the time, pulled from the known bad CPU board, also few fresh new chips from mouser.de , so it should not be issue. i checked CSI/CSO every time i replaced burned resistors/ISL, everything is fine there.
the thing is it looks like ISL6259 shorts both CSI_n and P lines to...
FUCKING APPLE
can someone tell me which ISL shoud go there? it is 6259 on the one page and 6258 on another. Unfortunately this is the only one 2936 board in my shop now
well, it was in other repair service and i am not sure what was there before. since i removed the old chip as a first step i am not sure if it was 59 or 58.
What could go wrong if there was a wrong chip on place? both caps are replaced and repealed, they make no difference even if removed
Waterdamage on U7000, traces to R7021, R7022 were corroded away, both burned to megaohm resistance.
After replacing ISL and both resistors i got a fan spin as well as a smell of burned R7021/R7022 resistors. No shorted caps in this circuit, resistance to ground is also OK.
No shorts on...
we are using outlook calendar with exchange. it may sound stupid but it is actually better, the only thing is it lacks version control and synchronisation overwrites changes from time to time.
unfortunately my board is virgin-clean and it happens to run OK on my cracked bench test display, so it is not the board.
it is also kind of difficult to diagnose since verbose mode switches to the GUI just before this freeze happens. on the working display it looks like it changes resolution at...
Just in case some one searches for this issue.
This is the display problem. I will try to investigate what's wrong exactly, but it works perfectly with my bench screen.
as far as i can see, it freezes in the moment it tries to adjust brightness, so it is some kind of sensor failure and as...
jup, that was bad Q7080 semi-short between drain and gate. It was generally my laziness, i check gate-drain and call it OK.
Thank you for the sollution!
any usb activity or on bios datalines? if you have a shorted cap on the main VCC rail, you should probably check all other fets and power controllers around, check if resets are being released, if you have pwr_good and gfx vcore enable and so on.
came with a blown DCIN fuse which is already a joke to see. Also short circuit on mains on the MagSafe board. After Fuse/Charging board replacement i got a fan spin and full choo-choo with a new battery.
On my bench. After full assembly, i put it on outcome desk and plugged in an original...
thunderbolt 3 functionality on TB1 and egpu drivers is something you should excpect from the linux community... not Apple. TB1 should be fine but i never really seen any reasonable use case besides UHD monitor
SPI_MLBROM_CS_L, SPI_MLB_IO1_MISO, SPI_MLB_IO2_WP_L, PP3V3_SUS 3.3v Stable, no activity on Oscilloscope
Nothing on SPI_MLB_CLK, SPI_MLB_IO3_HOLD_L, SPI_MLB_IO0_MOSI
No usb activity on bootable USB, mouse light on, Keyboard capslock dead