MacBook a1466 no images. No backlight

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • hadis2047
    New Member
    • Dec 2016
    • 9
    • Nepal

    #1

    MacBook a1466 no images. No backlight

    Device: MacBook A1466 820-00165-a

    Problem:no images, no light , only fan spin normally sometimes higher When I plugged charger green light comes For few seconds after that orange light comes up again off few seconds again come up orange light and never off and also fan spin normally some times more speed

    Customer history: after windows 10 to bigsur update machine was full heat and off

    What i did:
    1. Smc reset by combination key
    2. Smc bypass method try
    3.open MB there liquid damage u1930(logic ic) reball
    4. Check all volt which is written on images
    5. Bios backup and same bios cleaning to intel clean me region tool
    6.Spent 3 days 2 nights lots of youtube videos lots of forums articles reading

    As my suspension is u1930 ic but not have new ones

    Note. Lots of charging plugs unplugged machine boot to windows and hang after remove charger same issue
    Attached Files

Related Topics

Collapse

  • jheunne
    A1466 macbook no boot green to orange light help
    by jheunne
    i have macbook a1466 board id 820-00165 with power fan spin green to orange light not booting no image or light i tried to fix its leak chip number U1930 but sad it has been damage due of corrosion here i attach the image of board. possible there is a jumper ways for it can't find parts for it to buy.
    in first image there is 0v out for lcd
    https://ibb.co/5XppmpkH

    in 2nd image U1930 chip is damage is there any jumper solution or parts can be compatible for it
    https://ibb.co/fdJkbJs8
    06-10-2025, 10:52 PM
  • joeoffice12
    MacBook Air (2017, A1466, No power/orange-green light on)
    by joeoffice12
    I have a 13 inch MacBook Air 2017 that does not show any life, however, there is activity from the MagSafe light going from green to orange and staying. Normally, this battery works perfectly fine and it can actually charge the battery as if I were to leave it alone it would change to just green, however, this thing does not boot up at all, I was told the computer was at 30% and then it randomly shut off.

    Some voltages:
    PPBUS_G3H - 8.5V
    SMC_PM_G2_EN - 3.42V
    PP3V3_S5 - 3.32V
    PP3V42_G3H - 3.42V
    PPDCIN_G3H - 15.18V
    PP5V_S5 - 5.04V
    PP3V3_S5_REG_R...
    12-15-2023, 04:00 PM
  • mosfetratus
    macbook A2918, orange light off when shut off
    by mosfetratus
    When i fully shut off mac, orange light goes off and wont react to power button. I have difficult time resetting with combination "shift+control+option and power button", because it rarely works (reason unknown), when i manage to get orange light and then press power button macbook wont turn on and orange light goes off. When i hold combination with power button it turns on, and works fine if put it to sleep mode.

    Works with battery and charges, but when i shut off i get this problem.

    It had liquid spill. Board has no corrosion, keyboard is working, power button...
    05-31-2024, 03:34 AM
  • GB1999
    Macbook Air a1466 820-00165-a (No power , have orange light)
    by GB1999
    Hi there i have a Macbook Air A1466 board number 820-00165-A. No power, and has Orange light when plug in to charger. SMC is working and the Fuse is good. Found a Short and removed. But still there is short on mosfet. The short leading to Capacitors near Processor.

    - 2 Mosfet Near The Processor Is Shorted. (Already Tried Injecting 1V, draining 0.07A) Unable to shop the shorted area. Marked Blue.

    - Already Checked Big Capacitor below the processor. (Good Capacitor) Marked Blue.
    - Found a short and solved the issue. ( Red marked Big Cap)

    Anyone...
    04-09-2023, 12:24 PM
  • techrepairheide
    MacBook Pro (A1502 / 820-3476-A) - No orange/green light and no power
    by techrepairheide
    Hello again,

    got an MacBook Pro from 2015, model A1502 and motherboard version 820-3476-A.

    Device died over night on charger.

    Currently I did the follow things:

    1. Checked visuell the board, test with another MagSafe-Charger and with another DC-IN-board too
    2. Measured 16,5V on ​PP18V5_DCIN_FUSE but 0V on ADAPTER_SENSE and 0V on PP_3V42_G3H and 0V on PPBUS_G3H but 16,5V goes to U7090
    3. Because of corrosion and bad resistor values I changed these components: U7090 / C7094 / C7095 / R7095 / R7096 / L7095 / C7099 -> But further...
    01-26-2025, 05:37 AM
  • Loading...
  • No more items.
Working...