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I have a screen, but I don't get any display when I connect the Mac externally. I tried connecting and disconnecting the screen cable. I tried closing the cover, but got the same result.

No, we don't have any external displays. The exact reference number for the motherboard is 820-02536-A.

Hello, I have an A2681, it got wet, the customer brought it back to another store and then to us. I found oxidation on the backlight area, next to UP950, UR630, and UR600. We also found some oxidation on UF 350. I cleaned it and replaced it. Before, it wouldn't start, but I replaced UR630...

The computer always stays at 1V and it fans.

820-00928-a

The computer consumes 20v and 1a, so it's normal consumption, but I have no display and the battery is disconnected. I tried the chassis and it's fine. I put a another motherboard and everything works. LA-300: 1.35V ok LA-350: 0.9V ok LA-640: 0.9V ok LA-650: 0.9V ok L-7330: 1V ok L-7231: 1V ok...

yeah and i have replace 2 time the daughter board same thing

Didn't you ask for it, and be nice? I have the 820-03286.

We use XinZhiZao as software, but we don't have the values. If you have your schematics and board view or software, please send them to us.

We replaced the slot on the motherboard for the trackpad and keyboard slot, but nothing changed.

Okay, let's see about that. When I reassembled it the first time, I lost the backlighting, so I replaced the UP700 and it worked perfectly.

I have a MacBook that won't turn on (1). I replaced the UF500 and UF400, and it worked perfectly. I have another MacBook A3114 that won't turn on (2) When I wanted to swap the motherboards and tried them in each other's chassis, I was surprised to find that in the first chassis (1), the...

260 Ohm Red on ground 570 Ohm Black on ground

1V25_S2 no value and I have 260 ohms and it is not short-circuited and I have the same value before changing U7700 and U8100 I tried but nothing works, it does not enter DFU mode

We replaced U8100 and U7700. PP1V5_UPC0_CORE OK PP3V3-UPC06_LDO OK PPVBUS_USBC0 5V USBC0_CC1 1.6V RF403 I have 0.5V It does exactly the same thing. We connected it to the computer and it is not detected in DFU mode. Afterwards, the computer stays at 5V and does not switch to 20V. What is...

A2338 remains at 5V and 0.018A (The motherboard has not been damaged by water; it is in perfect condition.) I checked UF500 and UF400; both are fine. We checked them on another motherboard, and they output 20V. I flashed UF260, but nothing changed. We even replaced U5200, but nothing changed...

I put the NANDs from my A1932 motherboard on my 2159 motherboard. So the U8600 A1932 NANDs on the U8600 A2159 and the U8700 A1932 on the U8700 A2159. When I restore it with Apple Configurator and my Mac mini, it works, but then I get a padlock on the Mac mini and no display on the MacBook...

Hello, We have a MacBook A2159 820-01598. When we put it into DFU mode and start a restore, the restore crashes. We have all the voltages on the NANDs and we think that's where the problem lies. 1-Can we take the NANDs from the A1932 and put them on the A2159? 2-We are going to put the...

Hello, I have a MacBook A2681 820-02536 The customer brought me the computer, which would not turn on. I found a short circuit on the C77F6 capacitor. I removed it, then replaced the PMU U7700, and the computer started up normally, but the battery is not detected. When I test the values of the...

I have a MacBook Pro (A2442) which has been exposed to water and is therefore oxidised. The MacBook lights up with the battery but when I plug in the charger it doesn't charge but takes 19V 0.000A. So it doesn't charge the battery. When I work on the motherboard without the battery but I plug...