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  1. R

    A1989 POST's OK. 4 issues, maybe linked

    I have also checked SYS_DETECT_L = 0V/ SMBUS_3V3_BATT_SCL 3.374V /SMBUS_3V3_BATT_SCA 3/374V/ BMON_IOUT 0.007V Not sure if this info helps
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    A1989 POST's OK. 4 issues, maybe linked

    Morning 2informaticos . I have cleaned the contacts already. I also tested the battery itself and it's showing 0.001v, so completly flat. Even with the battery disconnected, I still get the fast fans and inability to run/ install and OSx. This also happens if I try to boot from a live external...
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    A1989 POST's OK. 4 issues, maybe linked

    Hello all. Hope your all keeping well and safe. So, I have in an A1989. 820-00850. Logicboard is immaculate. When first powered on the progress bar will only go about 10%. after about 2 mins, fans will spin fast. Goes no further. Powering on to the boot options, two options available. One is...
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    Info needed ahead of a Macbook coming in for repair.

    2informaticos at this time, the customer cant even give me the model of the macbook. appantly, the base is rubbed and the unit has no power to get the serial due to the adapter being left somewhere. i probably will not get this additional info untill i get the unit in my hands. the photo of the...
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    Info needed ahead of a Macbook coming in for repair.

    Hi all. I hope your all healthy and staying safe. I am after a little information on an issue with a macbook that is coming in next week. I am going to be upfront with this. The issue is one I have not encountered before, the Macbook being used, all I have is 2 photo's and its a 2017 model, the...
  6. R

    part needed

    Hi all, search over, managed to locate one. Thanks anyway.
  7. R

    part needed

    Hi all. dont suppose anyone in the UK, has scrapped an A1706 touchbar that has a battery connector screw they are willing to sell at all please? Thanks in advance.
  8. R

    No power ( solved), just for information

    Hi all, hope everyone had a good christmas/ holiday. I want to share an experience, more for informational purposes. Had an A1502 820-4924 come in with no power. PP3V42_G3H and PPBUS_G3H were present. So set about having a look over the board. Tho and behold J4915 was burnt on pin 3...
  9. R

    Battery issue

    I am assuming that no replies means that no one has tried this or that it will not work?
  10. R

    Battery issue

    Hi all, firstly Happy New Year to you all. Secondly, I have this ongoing problem with an A1502. Unless an orginal battery ( factory fitted) is put into this MBP, it fails to charge any other battery I put in. I have used 6 batteries from different suppliers and none will charge. But as soon as I...
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    A1502 820-4924-a no backlight

    Spare screen is one i use to test with. Bottom left corner is cracked. Shine a torch through the apple logo and I can see the ? folder. The screen assembly has been used on various repairs and come from an A1502 emc 2835. See image below. I did read your post and I did change it--- Q7700 Yes I...
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    A1502 820-4924-a no backlight

    Hi 2informaticos. Come into work with a new set of eyes and took all readings again. so, changed the F7700 ( replacment fuses arrived) and L7710. C7768 removed ( again still not sure which cap this is due to C7768 not being found in the schematic I have). Following readings have been obtained...
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    A1502 820-4924-a no backlight

    Hi all. Not frequented the forum for a while as been getting along with the Macbook repairs quite well. So an overdue helloooo. Anyway, those that have read my posts know it is not going to be a short one... here goes. Above mentioned Macbook pro is given to me for repair. Presented with no...
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    CMIzapper Tiresias

    Thank you, i will grab one and fit it.... TBH, I rarely get any GPU issues, more seems to be Air's with liquid damage...
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    CMIzapper Tiresias

    captainmac thank you. I only came across this product recently and after watching loads of videos, hearing most repairers will not entertain this problem on the older machines, I was ready to tell my customer no. There are loads of videos on the fitting of these, but no real "trustworthy"...
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    CMIzapper Tiresias

    anyone...?
  17. R

    CMIzapper Tiresias

    Hi all... I know I am probably late to the party with this... but CMIzapper Tiresias. Do they work and are they any good? Thanks in advance. Marc
  18. R

    820-00165 No 5v or 3v3.

    Thank you 2informaticos . I have fitted it back before i saw your message. As usual, I couldn't have done this without the aid of you guys on the forum.
  19. R

    820-00165 No 5v or 3v3.

    And there we have it... got a fan spin, a boot and folder displayed. I am going to re-attach the J6100 connector as I feel that it really was of no consequence to the issue. For the record parts swapped were U7501, Q4410, R4411. Pin 1 of R4411 was also jumped to pin 1 on R4410. Finally R1410 was...
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    820-00165 No 5v or 3v3.

    2informaticos I tested the voltage at probe point 639 ( just below R2223) ( as shown using Landrex ( i like Landrex)) and it showed 0.036v. I felt this was easier to locate than R1410. However, when I tested at Pin 2 of R1410 I was getting the same 0.036v but pin 1 is showing 3.334v. I removed...
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