S5 SD Swap/ mount Question - AT&T Samsung Galaxy S 5

Hi
I have just jumped from iPhone to Samsung S5 and was wondering if there is a simple way to swap the internal memory with an external SD card? I have an android gaming tablet with a custom rom which does this automatically, making the OS install, download and do everything onto the external card.
I saw a post here http://forum.xda-developers.com/showthread.php?t=1377628 which talks about modding a system file will that do what i want? currently after installing TomTom and several map packs i now only have a few GB left of 16
Ps.. I have done the SDFix already to enable writing to the SD but TomTom requires the maps to be in the Root folder so you cant " move to SD " it only moves the program. I have S5 with KitKat 4.4.2 i believe.
Anyhelp apreciated.

82 views and no reply, is it because it can no longer be done?

I'm by no means an expert, but KitKat has severely limited this capability, apparently.
I'm betting that you would need a custom boot-loader in order to fully host the OS form the SD card.
Depending upon which specific S5 variant you have you'll have different options to mitigate this. Some of the big USA carriers (notably AT&T) are shipping with locked boot-loaders, which prevents fully customizing the ROM / OS load. From what I gather, but have not attempted, not even SafeStrap is currently capable of retargeting the system to the SD card.
Depending on the app, you may be able to (on a rooted phone) make a soft-link on the filesystem and redirect that application's data to the SD card. I'd think that the more safe way to go, but again I have not tried it.
Keep in mind, also, that hosting the OS from the SD card would likely impact performance heavily. In my testing the internal flash memory has at least 2x to 3x the performance of the fastest microSD I could find to test with, and more like 10x the speed of a cheap SD card (my phone is the US AT&T variant). This has huge ramifications for much-accessed / randomly-accessed content, and by derivation probably impacts how well the phone feels in operation.

I see, i thought it would be easy like my gaming tablet, the 'system' still runs on the devices internal memory but the 'storage' runs from the SDCard.
My phone is a UK/ EU model and is not locked to any provider as bought outright. Is it possible to flash it with a stock rom that does allow the swapping of the SD, one slightly older than 4.4.2 which it is currently on?
I filled up the small 16gb within 2 hours of having the phone so having external memory is a must really. TomTom is taking up alot of the room and i dont think you can move the DATA to the SD card as it reads from root of device.
any help appreciated.

Any update in this?

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Can I shrink the other internal SD partition (the one I can access without rooting) and increase the root phone storage without having to re-flash my happy already-configured ROM and losing any apps, etc... ?
Sorry guys, should this have been moved to a different section or so?

[Q] Need Advice for SD Card Problem.

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I have a 16GB micro SD card that I've used in several phones, including my most recent Motorola Photon. I'm curious what everyone would recommend as to formatting the card and "starting fresh" if I wanted to dedicate the whole SD card to the phone (i.e., I will never remove it). What I mean specifically is that I want to dedicate the card to "add" to the 8GB that's already on the phone.
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Update:
1. My phone memory was "full" even though I had very few apps. Turned out there were a bunch of "bp-dumps" being created--I presume they are like memory dumps when there is an error. I reflashed with Probam and so far things are okay.
2. I found this article that explains why one may to dedicate some card memory to SD-ext and a step-by-step of how to format. I note that I had to reboot once in between for the option of partitioning the SD-ext to show up:
http://forums.androidcentral.com/general-help-how/193297-everything-sd-cards-discussion-how.html
But it doesn't seem that Probam shows any change to the memory. I may have to reflash it a couple of times, as one of the posts suggested.
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[Q] Bank swapping SD cards

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On second thought
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[Q] How to transfer apps from the phone & sdcard 0 to sdcard 1 (external sd card)

I don't know whether this question has already been asked here but since I'm a newbie and this Droid 4 is my only Android phone (all others are Windows Phones), I'd like to ask this one:
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And my apologies if this question has already been asked here.
try foldermount from playstore...
I'm fully aware of that app but it's not free.
Any other choices???
well i can only recommend Foldermount since im using it myself and the basic features are free and satisfy my needs fully.
but hey, the full version costs only ~2 dollars or so...

Allow Apps to Write to SD Without Root?

Hello, I was wondering if anyone had found a way to allows apps installed on the BLU R1 HD to write to the SD card? I've always had bad luck with rooting phones in the past and I do my best to avoid it, so I'd prefer to do it without rooting the phone. I just want to keep podcasts and the like on my SD card rather than on the limited internal storage 8/
I have used an exposed module to do it: http://forum.xda-developers.com/xposed/modules/xposed-marshmallow-sd-fix-write-t3403263 But, of course, you would have to be rooted. This phone is one of the easiest to root that I've had. Google considers it a security hole to let applications write anywhere they want on the SD card.
switching to adopted storage and you can write apps to sd.
also I should add don't believe the box, I have my 128gb card working perfect as internal storage (box says up to 64gb)
also rooting the phone is one of the easiest root processes, you should just go for it

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