Black screen, repeated chime, can my MacBook be recovered?
First of all, sorry for my bad English.
So, my MacBook air A1465 suddenly fall into a deep coma.
The MacBook is now can not turn on. Just a blank black screen with repeating chime.
I did the SMC reset, PRAM Reset, etc nothing work. even I cannot use any boot key combination at all (except for SMC and PRAM Reset).
When I was doing some work, the mac shut down when the battery level at around 20%.
I thought it might be just the battery os too low.
I grabbed the MagSafe, plug it in. The charger light comes on. and I leave it for a few minutes.
Then I opened the clamshell, and press the power button.
Nothing, black screen. Thinking that maybe it just needs time to boot, I leave it alone. a few minutes later I come back and the screen still black and the fan spinning so %#*@ loud. I then pressed the power button to force it to shutdown.
Then I try to boot into safe mode, it sometimes working (i am able to get into the OS in safe mode) but sometimes it just doesn’t work, like the shift button doesn't even respond when I pressed it while the mac is starting up.
Tried the SMC reset, pram reset, but nothing takes any noticeable effect. Still black screen and repeating chime.
When I was finally able to boot into the macOS, the first thing I did was updating the operating system from macOS Sierra to High Sierra (Thinking that maybe it just the OS is too old and need some update).
But no, the problem is still there, when I close the clamshell and open it again, the black screen is back.
Then I thought, maybe I should clean install the thing. So I did. I grabbed some USB Stick and make a bootable.
Using the disk utility tools, I formatted the SSD and proceeded to install the High Sierra.
When the first time it reboots, I can see the Apple logo and the progress bar, but nothing else. the progress bar doesn’t move, the apple logo stays there for hours. Then I again hold the power button to shut it down.
Long story short, now the mac is completely dead, I can no longer able to boot the USB Installer, cant get into diagnostics, CMD+R doesn't work, nothing.
All of the boot key combos don’t work. I tried every tingle combination and every single way of pressing it, nothing.
What is the possible status of this MacBook?
Is it the EFI Chip that is corrupt? or is it the RAM? Processor? GPU? Hardware issue or just simply the EFI Firmware is broken.
In short? can I recover this MacBook? at this point, I am willing to even try to solder the new EFI Chip, but before I do that I just want to narrow it down.
Can anyone help me to guide me in the right direction without involving apple store, because in my place there is no way I could find any apple store or genius bar.