I always have trouble updating my A4.
I was trying to use Overbridge, and it told me to up date the A4.
So I tried through C6 using USB, and then got stuck on the Erasing Flash screen, exactly the mistake I made last time.
However support got back to me last time and said, update the OS through midi, I did and it worked.
Now I am getting hung up on the Bootstrap Upgrade screen.
I left in on all night and nothing.
I already filed a support ticket.
Any other ideas?
Any one have OS 1.23 I can have?
I managed to download a version from here https://www.elektronauts.com/files/317
and it came back to life, but I need 1.23, as I cant get 1.24 to work.
I managed to find a version of 1.23B, seems to be working despite some sounds seem off.
That was terrifying.
Back here again, this sucks.
Anyone have an OS version prior to 1.24 I can have?
PLEASE
Anyone have OS 1.23B?
Does anyone have OS 1.23B?
New OS takes me to Bootstrap Upgrade screen and just sits there.
Found it, back to OS 1.23B
Projects disappeared for a bit.
Can you post it here. I’ll keep a copy for safe keeping.
Shite, I’m sorry but I don’t go on this forum often unless it’s to gripe about something.
I keep meticulous backups. I can hit you up with anything you need from what I have.
For Analog Four MKI I have the following:
1.21B
1.21C
1.22
1.23B
1.23C
1.24
Analog Four MkII:
1.30B
1.35
Analog Rytm MkI:
1.01
1.02B
1.02C
1.02D
1.21B
1.21C
1.22
1.22B
1.30C
1.30D
1.31
Analog Heat MkI:
1.02
1.10
Probably not much help to you now. 
Thanks ya’ll!
I got it sorted out.
Never had success backing up stuff or simple OS upgrades with this A4.
I think I finally got back ups working.
Maybe something is up with my A4’s USB jack or something.
It’s so fickle.
Analog-Four_Analog-Keys_OS1.23B.zip (778.4 KB)