Re: Transfer "Call Block" list from Galaxy Note 2 to Galaxy Note 4
From a rooted SQLite editor. They're right, you can't see them by connecting the phone to the PC - that's basically just for transferring media and document files.
As far as practical experience, not with that database, but I added MobileData to my notification toggles by adding it to the record in one of the system databases (I forget which one). And, of course, using SQL since it came out in the early 70s. (And if you write website backends, you write SQL - it's kind of like bacon comes with fat - website backends almost always come with SQL. I'm betting, although I've never seen the code of this site, that all the posts are in a table in a MySQL database.)
Some SQLite editors will list all the databases on the phone, and you can look through them for key numbers like 800* if your call blocker takes wildcards, or a number you know you have blocked. Then figure out the record structure (what fields go where) and insert the records from the old database into the new database in the correct field order.
@AZgl1500:
They're not hidden, they just don't give read access to the user "everyone" (which means any app, rooted or not), and the user "root" has all access to the entire file structure. A hidden folder would be one that starts with a dot (in Windows that would be no name, just a dot and an extension).
A hidden partition? We used that trick back in the 90s, but root access wouldn't show it - it's hidden from the computer (by not being in the partition table). And the part of the drive that was visible had a used area that, for some strange reason, couldn't be accessed (and happened to be the same size as the hidden partition) The only way to see it is to rewrite the partition table, listing that area of storage as a partition. (Or using a raw editor that can access physical locations [like track and sector on a hard drive] in storage without regard to what partition they're part of - or not part of. Peter Norton's [not to be confused with Symantec, which just bought the right to the name] Diskedit did that, and let you manipulate hard drives to do things that fall into that class "can't be done". Like having 40MB free on a 20MB hard drive that was just about full. [At least that's what any normal program would tell you the situation was - you didn't really have 40MB free, used or anything else.])