Macbook Air Infinite Boot Chime

Jonny Quinn

macrumors newbie
Original poster
Feb 4, 2020
3
0
Hi folks, really appreciate any direction on this problem.

Lets start by saying i have a Macbook Air "Core i5" 1.6 13" (Early 2015)

No water damage and never been dropped and sadly out of warranty and without Apple Care.

It started to crash intermittently and then started to reboot. Sometimes it would reboot and work for a while but then it started rebooting every few minutes.

I reset the VRAM & SMC and now i am stuck with a black screen and infinite boot chime.

Lets be a little bitt clearer on infinite boot chime. I get one clean boot chime and then infinite distorted chimes every 2-3 seconds .. this isn't the standard 3 or 9 chimes which suggests Motherboard or RAM .. it is infinite ! It doesn't stop until i hold in the Power Button.

So i popped it open, knowing that the RAM couldn't be easily addressed, but considered pulling the battery for a period of time, re-seating the SSD etc etc .. nothing seemed to change anything .

However when i remove the video connector cable (the slightly angled one in top left corner with black tab) the infinite chime goes away and i get a standard single one chime startup. Obviously i have a black screen at this point and cannot see if the system is starting correctly, but it would seem to me that this would rule out RAM or MOBY issues.

I know i'm gonna get suggestions to try connecting it to an external monitor and yes i intend to do this, but i live in the Mountains of Andalucia and i have to wait quite some time for a USB-C to HDMI adaptor to arrive.

So basically in the meantime i was hoping to here suggestions or previous similar experience and what the result may be.

Thanks again guys, really appreciate it.
 

Jonny Quinn

macrumors newbie
Original poster
Feb 4, 2020
3
0
Just to update ... pressing SHIFT Key does not put it in SAFE MODE it just hangs on Apple Logo with progress bar, however holding Command + V loads lines and lines of text and then it starts fine ...

System Information shows the correct RAM Slots, Sizes & Status on both is OK

But rebooting causes the Infinite Chime to return ....
 

Jonny Quinn

macrumors newbie
Original poster
Feb 4, 2020
3
0
So everything works fine in Verbose Mode, but can't Enter Regular Mode, Safe Boot, Diagnostics or Recovery Mode .. How would one perform a fresh install from Verbose Mode were Wi-Fi is disabled ?