Apple MacBook Air A1370 wont turn on, won’t power on, no display, black screen problems

Laptop Apple MacBook Air A1370 won’t turn on, won’t power on, there is no display, just a black screen. This is a general diagnostic and repair steps to fix those problems.

Troubleshooting laptop Apple MacBook Air A1370 won’t boot, won’t power on, no display just black screen

When you push on the Power Button the Power led lights ON or NOT, your Apple MacBook Air A1370 won’t start up, and there is no display just a black screen. Possible problem and the fixes steps:

Battery has no charge left + AC adapter failed; you press the power button on laptop Apple MacBook Air A1370 nothing happens, laptop won’t turns on and there is no display, the battery has no charge left, the motherboard doesn’t receive any power, laptop cannot turn on. You plug in the AC adapter but that doesn’t help, your laptop Apple MacBook Air A1370 still won’t power on, there is a chance you have failed AC adapter. In this case try with another charger or check AC adapter with a Multimeter. If it’s dead, replaced with a new one.

Power circuit in wrong state or Over volt protection trips; you press the power button but nothing happens, laptop Apple MacBook Air A1370 won’t turns on and there is no display just a black screen, your laptop has static electric charge made power circuit in wrong state. Unplug AC adapter, take out the battery and hold down power button for 30 seconds, the static charge will dissipate. Plug in the AC Adapter and turn on your laptop Apple MacBook Air A1370. This should restore the system to normal operating mode.

Hardware failure; the laptop powers on, but there is no display just black screen with Power led lights ON or your laptop Apple MacBook Air A1370 stock on logo or restart. In this case, it’s possible one of the Hardware failed. You can try to disassemble the laptop to bare minimum and try to reseat the hardware one by one and power on the laptop every time you reseat a hardware, to know the failed one, replace the faulty hardware.

Screen faulty or bad video cable connection; laptop Apple MacBook Air A1370 turns on, but screen is black, with Power led lights ON. Test the laptop with an external monitor connected to the HDMI port, VGA port, press the appropriate key to switch to it. If the external monitor works fine and load the operation system, most likely you have a faulty screen or bad video cable connection. Check them and replace the faulty one.

BIOS failed; Laptop Apple MacBook Air A1370 won’t turn on at all, if the voltage 19V, 3.3V, 5V OK  and electronics components on the motherboard are good, there is chance you have failed BIOS. There is a signal test confirmation on EC/SIO pin name RSMRST# . This pin must available 3.3V(tolerance 10%) than Bios Confirmed OK. If the test failed reprogram or replace the BIOS chip.

Laptop Power System has problem: Laptop Apple MacBook Air A1370 won’t turn on at all, probably some electronics components or chipset on the motherboard failed;  Disassemble the laptop and take out the motherboard. Ceck No burnt marks visible on the mainboard. Check chepset temperature (CPU,  GPU, Power-Supply IC …). Check power jack. Check motherboard receives 19V. with a Multimeter measure voltages on coils, check for any components shorted to ground.  checked 3.3v/5v is up and running?

If you  have 3VALW And 5VALW at coil. 3VALW should go to sio and from there you should get 3v at power button. Check SIO for corrosion,shorting or any componenets which looks suspect. Check 3 & 5v SUS voltage.

Will need an electronic boardview or Schematic Diagram for Laptop Apple MacBook Air A1370. The failed electronic component has to be replaced.

Note: (In the comments we will be updated electronics components failure).

Motherboard dead; The Apple MacBook Air A1370 motherboard has to be replaced.

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For other Apple MacBook Air A1370 problems check the comments or write a comment.

3 thoughts on “Apple MacBook Air A1370 wont turn on, won’t power on, no display, black screen problems

  1. 7even

    Hello to all, this time i meet a symptom that drive me mad !

    I have a macbook air 11″ A1370 – Board id 820-3024-B (Core i5 1.6 11 (Mid-2011) that is stuck in a boot system loop (chime loop) this computer start and i hear the chime sound that repeat endlessly with only a white screen.

    Sometime (rarely) it chime normally (one time) and i can see the blinking folder (this computer doesn’t have a ssd for now) after a certain delay.

    I realized that if i unplug the lvds cable i does not have any more chime loop… i test on an external screen with adapter but only white screen with sometime (rarely) the blinking folder !

    The keyboard seems to not working, (the caps lock doesn’t lit) and all keyboard command doesn’t respond (Commande ⌘ + Option + P + R etc…) Only the power button do the job !

    At first i was thinking the problem is due to an EFI corruption, So i reprogram the efi chip many time (with different bios file) and the symptom is always the same, no evolution…

    Because of the keyboard problem, it was impossible to reset the nvram.

    Now i was thinking there was a possible shortcut somewhere, do you have any tips related to this motherboard where to put under my investigation ?

    The motherboard is corrosion free, the water damage indicator is intact and the board seems untouched but i don’t know the past of this laptop…

    Have you ever experienced the same symptoms and successfully repaired the motherboard ?

    Thanks in advance for your feedback,

  2. Josef baroki Post author

    any usb keyboard should work fine… just unplug yours, then power on shorting pins and then try reset nvram by pressing right combination, if i remember good, option is alt, cmd is control and the other key is windows key.

    check if it do that reset option 2 times for completing nvram then release bottons.

  3. 7even

    Thanks for your response, i have already try to disconnect the internal keyboard and use an external apple usb keyboard but with no luck (caps-lock doesn’t lit) and still no response to cmd ⌘ + Option + P + R or Option (⌥) to select the boot device !


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