[Samsung Galaxy Tab E  Questions & Answers] Kohlrak:
Disclaimer: I know this should go in the correct subforum for my device, but I'm having trouble navigating this site, altogether. I only see subforums for a handful of devices. So if there is a better place for this thread, I apologize

Oh, where to begin. My wonderful girlfriend got me this tablet back in october, since i said it'd be nice to have a linux based tablet so i wouldn't have apple telling me what i can and cannot do with my device (she saw that as a hint, even though it was more social commentary, but I'll take it). Anyway, I found the 16GB limitation problematic, so I decided to root it so i could use some sort of sshfs app to create a slow multi-terabyte harddrive space to steam small files (like music) from. Seeing as i had the thing for only a week and it's kind of expensive, even for a nurse, to buy for me, i chickened out and made due with a small 8GB microSD card which i just happened to have laying around.

Fast forward to a few days ago, I ordered from Amazon a 128GB microSD card (also from samsung), and decided to try to make due with that. Only to find out (and, if you're able to help me you've probably met the following issues yourselves) that the seemingly largest apps refuse to let you move them to external storage. Even better, there's some apps like Star Wars KOTOR (2.5GB) that say they let you move them, but in reality they stay on internal storage and create empty folders on the external medium. And then many apps cannot write and read to and from SD cards (like DOSbox Turbo), for reasons that completely stump me (which leads to me having to move dos games back and forth when i want to play one that saves). I then read about this wonderful feature called "Adoptable Storage," and promptly go through all sorts of things to try to enable it, only to find out that, since I have Android Version 6.0.1 from Samsung, that feature was disabled by them. After using the email support to berate them (they don't have a suggestion box), decided to try to come here and figure out how to properly root this device and figure out how to solve my space issue (I have 128GB of space that I need to use, but have no idea how to use it for what i need to use it for). By the way, a small shoutout to Samsung support, despite my very terse response, there clearly was a human being at the other end and this human was very, very civil and said that they'll pass it on as feedback (I got the impression that the employee either had the same issue or at least wanted me to know that there have been alot of complaints about this issue).

Anyway, now that that wall of text is over, this is how far i've gotten.

I know that XDA is reliable, they've had problems in the past with malware, but it was unintentional and the ship has been cleaned. I don't know about anywhere else, so the rooting instructions i find elsewhere i assume are probably correct, but i don't know where to get files for the process that i can trust, outside of XDA (and i'm having trouble finding the files i need, here).

I have a nice little article from techbeasts.com ( techbeasts.com/install-twrp-and-root-samsung-galaxy-tab-e/ ), but I don't know where their downloads came from and how many people checked them out for windows and android trojans and such.

So...

1. Is that article accurate for android 6.0.1?

2. Are those files safe (free from corruption and viruses)?

3. If they're not safe, where can I get safe files?

4. I like to develop programs, and I want to be able to develop apps for android as well. Once rooted, how does one test how their app would work on an unrooted device to ensure the app follows the "proper procedures?"

5. How do I deal with apps that are root sensitive? The point of all this is so that I can keep using my apps, so if they all break because i'm rooted that defeats the purpose.

6. Other than having to be careful with what i do (I've used Linux for years, and I occasionally like to code in assembly), that it voids my warranty, and that screwing up can make for a really bad day, is there anything else that I should know? This is, indeed, my first touch screen device outside of Nintendo products, because my V3xi is fine for me as a phone.

EDIT:

7. Forgot the most important question: How would I go about getting adoptable storage working on this device once it is rooted?

Forward: Given the nature of my question, the URL is absolutely necessary. After I've gotten my "10 useful posts" I'll fix the URL for future viewers.

EDIT2: Decided to take a chance. Ran into some issues finding the "stock firmware" which I ended up having to do. For those that have problem getting TWRP to stick, you gotta flash the stock firmware

of the version you have currently installed

. I tried to flash the original that it came with, which, for some reason, it didn't like at all.

Oh, and don't turn off OEM mode after everything's done. I assumed that after everything was installed it wouldn't second guess it and i could safely turn it off for added security if any app went rogue or something. Nope, must keep it on, so do regular backups. Turn off auto-updating, etc. I hear there's some sort of app that lets you "update safely." Not sure what it is, but unless you *NEED* it, don't do it.

And as a bonus note (so it shows up in the archives), some apps didn't install right (either google or the app developer's fault, but these apps weren't tied to this process [pokemon go and just about all the final fantasy games]). The kicker about this is is that you will not notice this UNTIL you uninstall the app, and reinstall it. Deleting the data before uninstalling the app will make it unstable. To find the data, i used

du / | grep "pokemon" > pokesearch.log

, since i knew that there should not have been a pokemon related directory on my droid at the time, since i needed to reinstall pokemon go because it was acting really fruity. Deleting the folders (actually, the last entry contains the rest, so it's easier just to delete the last one) allowed me to avoid the -504 issue (not to be confused with 504).

root@gtelwifiue:/data/data/com.termux/files/home # cat pokesearch.log
4 /mnt/expand/07aa2c40-4a8f-428c-afb9-7495df69eb26/user/0/com.nianticlabs.pokemongo/cache
1192 /mnt/expand/07aa2c40-4a8f-428c-afb9-7495df69eb26/user/0/com.nianticlabs.pokemongo/code_cache
12 /mnt/expand/07aa2c40-4a8f-428c-afb9-7495df69eb26/user/0/com.nianticlabs.pokemongo/shared_prefs
4 /mnt/expand/07aa2c40-4a8f-428c-afb9-7495df69eb26/user/0/com.nianticlabs.pokemongo/files
1220 /mnt/expand/07aa2c40-4a8f-428c-afb9-7495df69eb26/user/0/com.nianticlabs.pokemongo