Went through the steps above (even though it's subtly different on my phone). I *believe* I exported to a .vcf file, but am not really sure, as I have no idea how to review stored files on my phone, despite a lengthy search.
Install a file manager. My go-to app is X-plore, but FX File Explorer and Astro are also good.
https://play.google.com/store/apps/details?id=com.lonelycatgames.Xplore
https://play.google.com/store/apps/details?id=nextapp.fx
https://play.google.com/store/apps/details?id=com.metago.astro
I created a Gmail account and tried to log on to it using my phone mail app and the Gmail app, but it helpfully tells me I can't, as it already exists on the phone. Not sure how to access it, though...
I'm just too thick to understand what you mean by this stuff. So I've got questions...
You no doubt had a Gmail (Google) account that you used to register during the initial phone setup. So what do you mean "I created a Gmail account..."? Did you try to create 2nd, separate account just for your Master List"?
You don't need to 'log in' to your email accounts. Just do the email setup and the email client takes care of the rest, just like on a desktop computer.
What do you mean "not sure how to access it"? Access what, your email or your Google account? They're really the same thing..
And I don't understand how you got the account "already exists on the phone" unless you had already added the account.
I guess I'm mostly just not clear on whether you're trying to deal with a single Google account or two.
Seriously, I *work* in technology. I learned to code in machine language. I know C++, C#, Python and R. I understand complex system and data architectures. I've built enterprise systems for large corporations. If simple, basic contact integration and management is this freaking mysterious, inaccessible, protracted and difficult for me, how the f*%k to people like my mother cope? I managed all of this simply and quickly on the iPhone platform. This is a nightmare.
Actually, it's pretty simple if you don't make it hard. Bet that didn't make you feel any better. :^)
And I *really* appreciate your help.
No problem.
Found the file! But when I open it, it's a tiny and seemingly random subset of contacts on my phone.
Do the files you found end with the .vcf or .csv estension and have the correct creation date? If so, that's gotta be them. But I don't know
what you exported, which contact lists or what is supposed to be in the exported files. You have to answer that, I wasn't there. But certainly, if the file seems incomplete, better try it again.
When you say I need to run the export for Google contacts, FaceBook contacts, etc, do you mean create an export *from* a session in those apps or do you create it from the phone's contact app? I only appear to get the option to export device contacts while in the phone contact app and there's no-where from within FaceBook on the phone from which I can export/extract contacts...?
I meant to export each list whose contacts you wanted to include in the new Master List. I suppose that would be from the Contacts app, but you said you also have contacts in FaceBook, LinkedIn, Outlook, etc. I don't use that stuff so I can't walk you through exporting contacts in them. But I gather you have contact lists for them that are separate, I suppose within the apps for those. So yes, if that is the case, you would need to open the apps and export the contacts in them as .vcf or.csv files. Any app with contacts in it should have an export function somewhere.
I suppose I haven't been much help this time. More questions than answers.
To try and put it in a nutshell, just make sure you get all the contacts for your new list exported and mported to the Google account you want to keep the list in. Smooth sailin' from there!