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Trying to use the medusa2 and each time i connect to the logic board it says No chip seen (L), even on a known good logic board. Once, i was able to get it to connect and read the efi info, but on the next attempt, it wouldn't read from the same board. Has anyone had this issue and what did you...

Hello gents; Anyone have a suggestion on this issue i'm facing, the logic board powers up, fan does the initial spin, stops then comes back on and stays spinning. Original issue was no power, found U7701 had solder bridge from previous repair causing the short, pulled U7701 and found pins 5 was...

Have a 820-3332 with image issue. It boots up and chimes, but no image to the display or to HDMI. LCD_PWR_EN: 0v EP3V3GPU_EN: 0v GPUVCORE_EN: 0v PPVCORE_S0_GFX_REG: 0v (resistance check is 16ohm approx on PH2 and 18ohms approx on PH1) but assuming this is due to the GPUVCORE_EN being 0v I...

Anyone experience this fail before, when the MagSafe is connected, it keeps flashing green and then goes off, then repeats. Does this over and over. Once i go to test PPBUS_G3H the voltage starts to drop from about 11v and the MagSafe stops flashing, stays off. Same on PP18V5_DCIN_ISOL. When...

What happens if I flash an EFI chip with a serial number that's not the original? My issue is, I needed to replace the EFI chip, but the serial number on the chip didn't match whats on the bottom cover. The customer said he had the bottom cover replaced, hence the difference in serial number...

I Replaced the palmrest for an A1706 (palmrest came with a battery). The battery isn’t charging with a massage saying that I should change the battery. In system info it does stating that it has 18 cycle. Was wonder if the 87w charger for the A1707 works with the A1706 laptop? I’m about to...

Suggestion on a good efi reader/write. I attempted building one but kept getting errors where it doesn’t see any chip I try to read.

Original issue was laptop won't power on with MagSafe. Replace U7100 to correct this issue. With the battery plugged in, the MagSafe flashes (long green, then short green, then repeat). Laptop powers up still and runs, but battery won't charge. Runs fine with only battery or MagSafe, but once...

Hello, Have a 15in retina with no backlight. Replaced the lvds connector due to corrosion but still no backlight. PPVOUT_S0_LCDBKLT measures @ 54.76v, PP5VR3V3_SW_LCD @ 5.017v. I've ohmed out the connection checking from the pads on the board to the other end of an lvds cable (not connected...

Has anyone had this issue before and what did you do to resolve it: MacBook pro 15, 2013. Boots up to Apple logo and the progress bar loads all the way but never switches over. The keyboard back light even lights up, as though it was at the login screen. so far I have done all the usual SMC...

looking to purchase a batch of SMC chip from overseas, wondering if there any markings on the chip that identifies the model that they go to?

Hello, Can an A1502 SMC be used to replace a A1398 SMC? I've just replace two different A1398 board (820-3662, 820-3738) smc due to no power, with ones taken from a A1502 boards. Now both A1398 boards right fans aren't working. I've confirmed the below voltages are present. PP5V_S0 PP3V3_S0...