Would really appreciate some help with this...
Following the iMac HDD/SSD blade upgrade post, I successfully upgraded my 2015 27" iMac with a 256GB SSUBX Blade and 1TB Crucial MX500 - no issues.
I meant to renew the NVRAM battery at the same time (BR2032 for a CR2032) but in my excitement/haste to try out the new SSDs, I forgot - doh! As Id deliberately not resealed the display (for testing) I decided to open it up again this week to get to the battery.
Battery replaced I then plugged in the power cord and was surprised to hear the Mac power on - but with a recurring beep every 5 seconds. Looking at the logic board LEDs I see just no. 1 and 2 are lit.
Researching the LEDs suggested either battery or logic board fault but researching the beeping suggested the RAM couldn't be detected, of which there is 4x8GB of Kingston Hyper X.
So, I removed all the RAM first - same beep (as expected), tried all sticks in different slots, no change.
I replaced the new battery for the old BR2032 (having further researched that actually these things can last up to 10 years) - but still no change.
Then I read online a seemingly random/unrelated suggestion to detached the audio headphone flex cable from the logic board (bottom right next to right speaker) - yeah, like this was gonna make a difference....
I nearly fell off my chair when it booted!!!!
All sticks back in, BR2032 in, all LEDs lit up - only I have lost sound and obviously no headphone socket. So.....
Why would I get the 5 second recurring beep due to a (faulty?) headphone flex cable?
The sound output is greyed out, set to Digital Out and my volume buttons do nothing. I've read there can be issues where the socket gets clogged or tripped into Digital Output only so I tried plugging in a set of headphones several times to no avail.
I tried a NRVAM and SMC reset and Apple Diagnostics reports no issues found. I fired up the MIDI Utility and played around with setting basic settings (online suggestion) but figured, with the headphone disconnected it wouldn't help. Even though its disconnected, surely I should get sound out of my speakers though?
If I plug the flex cable back in, the Mac doesn't boot and beeps, only LED's 1&2 show. Whats going on?!
Would a replacement audio headphone flex cable fix this? I would say yes but not 100% sure. Ive seen one for about £9 but it states for model A1419 2013 only and they've confirmed it won't work with mine - even though its an A1419, only a different year. Think I might order anyway....
Thanks for reading...
Following the iMac HDD/SSD blade upgrade post, I successfully upgraded my 2015 27" iMac with a 256GB SSUBX Blade and 1TB Crucial MX500 - no issues.
I meant to renew the NVRAM battery at the same time (BR2032 for a CR2032) but in my excitement/haste to try out the new SSDs, I forgot - doh! As Id deliberately not resealed the display (for testing) I decided to open it up again this week to get to the battery.
Battery replaced I then plugged in the power cord and was surprised to hear the Mac power on - but with a recurring beep every 5 seconds. Looking at the logic board LEDs I see just no. 1 and 2 are lit.
Researching the LEDs suggested either battery or logic board fault but researching the beeping suggested the RAM couldn't be detected, of which there is 4x8GB of Kingston Hyper X.
So, I removed all the RAM first - same beep (as expected), tried all sticks in different slots, no change.
I replaced the new battery for the old BR2032 (having further researched that actually these things can last up to 10 years) - but still no change.
Then I read online a seemingly random/unrelated suggestion to detached the audio headphone flex cable from the logic board (bottom right next to right speaker) - yeah, like this was gonna make a difference....
I nearly fell off my chair when it booted!!!!
All sticks back in, BR2032 in, all LEDs lit up - only I have lost sound and obviously no headphone socket. So.....Why would I get the 5 second recurring beep due to a (faulty?) headphone flex cable?
The sound output is greyed out, set to Digital Out and my volume buttons do nothing. I've read there can be issues where the socket gets clogged or tripped into Digital Output only so I tried plugging in a set of headphones several times to no avail.
I tried a NRVAM and SMC reset and Apple Diagnostics reports no issues found. I fired up the MIDI Utility and played around with setting basic settings (online suggestion) but figured, with the headphone disconnected it wouldn't help. Even though its disconnected, surely I should get sound out of my speakers though?
If I plug the flex cable back in, the Mac doesn't boot and beeps, only LED's 1&2 show. Whats going on?!
Would a replacement audio headphone flex cable fix this? I would say yes but not 100% sure. Ive seen one for about £9 but it states for model A1419 2013 only and they've confirmed it won't work with mine - even though its an A1419, only a different year. Think I might order anyway....
Thanks for reading...
