Seeking Collective wisdom: firmware choice: Samsung Galaxy Tab S2 [SM-T810] - Android Q&A, Help & Troubleshooting

[29Apr: Just discovered the Samsung Galaxy Tab Q&A forum, I've moved this post to it]
Seeking Collective wisdom: firmware choice: Samsung Galaxy Tab S2 SM-T810
I'm looking for best bets for choosing a good firmware update for this older tablet that I still like.
The tablet recently got very flaky on Android 5 so I let it install an auto-downloaded image for Android 6. The new image probably came from Samsung since I was told at purchase that device had official Samsung firmware for Android 5.1.1. (see ABOUT DEVICE below)
Things got worse on the new Android 6 image, so bad that I'm ready to install new firmware by sideloading.
1. Since the device was rooted by prior owner (see: DEVICE HISTORY below for details) I am guessing I have little to gain by sticking with an official Samsung image--unless nothing else works. Does that sound right? And, does anything prevent me from going the non-Samsung route?
2. If it makes sense at this point to try a non-Samsung image, my question for folks here boils down to this: where am I likely to have the best luck finding a build that will work well on the device? For example, I wonder
who are the most experienced makers of firmware for this older tablet?
and which version of Android--7 or 8? Should I avoid 8 or go for it?
(I've seen an unofficial Lineage OS build for Android 8. I believe that Android 7 builds exist, too.)
Thanks for any suggestions.
MORE:
(I've waited so long to update because a) I seldom use the tablet and b) seller said that he'd had problems with a German Nougat and had reverted to official Android 5.1.1. )
[ABOUT DEVICE:
## 190425 from Settings / About device
- SM-T810 Model
- 6.0.1 Android version
- 3.10.9-7767647 Kernel version
[email protected] #1
Mon Apr 25 19:57:48 KST 2016
- April 2, 2016 Android security patch level
- MMB29K.T810XXU2CPD9 Build number (aka firmware no.)
- Enforcing SE for Android status
SEPF_SECMOBILE_6.0.1_0010
Mon Apr 25 20:17:25 2016
- MDF v2.0 Release 6 Security software version
VPN v1.4 Release 6.1
- KNOX 2.6 KNOX version
[omitted a lot more KNOX stuff]
- DC 5 V; 2 A RATED
- 5870 mAh Battery capacity
]
[DEVICE HISTORY, as far as I can say:
I bought in 2017 on swappa.com. Seller told me "What you would get out of the box is the official Samsung OEM firmware for Android 5.1.1 (XAR-T810XXU2BPB1-20160323135521) with the official Samsung recovery. Updates will apply without issue, either by directly loading with Odin or SmartSync, or doing an OTA firmware update....It is running pure stock firmware now. Since it was rooted at one point, the Samsung Knox flag is tripped. It's the only thing that would distinguish this device from a new-in-box tablet."]

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[Help] SCH-I545 NK4 won't update to Lollipop (Strange stock rom issue)

I'm new to the forums, though I did look around for a similar issue before registering to post this. Hope this isn't redundant!
Anyway, down to brass tax: I have an SCH-1545 from Verizon, and at one time had Hyperdrive 20 running which required the use of Safestrap. For a number of reasons I eventually went back to stock rom and being new to Android may have may a few crucial errors, though I haven't bricked my phone. I believe I've somehow flashed an improper stock rom, even though it does 'work' for the most part. The only problems are a few GUI bugs, mostly delays when using the keyboard, and the fact that when I try to update to Lollipop from the popup that incessantly invades my homescreen it fails and boots back into 4.4.2.
If anyone has any ideas or knows what I should do, PLEASE ask me any other information you need and help me sort this out.
Android version 4.4.2
Baseband version 1545VRUFNK4
Kernel version 3.4.0 [email protected] #1 Feb 20 2015
Build number KOT49H.I545VRUFNK4
SE for Android status Enforcing SEPF_SCH-I545_4.4.2_0027 Sep 02 2014
Secure boot status Type: Samsung
Hardware version I545.07
Security software version MDF v1.0 release 3 VPN v1.4 release 2
Munky33 said:
I'm new to the forums, though I did look around for a similar issue before registering to post this. Hope this isn't redundant!
Anyway, down to brass tax: I have an SCH-1545 from Verizon, and at one time had Hyperdrive 20 running which required the use of Safestrap. For a number of reasons I eventually went back to stock rom and being new to Android may have may a few crucial errors, though I haven't bricked my phone. I believe I've somehow flashed an improper stock rom, even though it does 'work' for the most part. The only problems are a few GUI bugs, mostly delays when using the keyboard, and the fact that when I try to update to Lollipop from the popup that incessantly invades my homescreen it fails and boots back into 4.4.2.
If anyone has any ideas or knows what I should do, PLEASE ask me any other information you need and help me sort this out.
Android version 4.4.2
Baseband version 1545VRUFNK4
Kernel version 3.4.0 [email protected] #1 Feb 20 2015
Build number KOT49H.I545VRUFNK4
SE for Android status Enforcing SEPF_SCH-I545_4.4.2_0027 Sep 02 2014
Secure boot status Type: Samsung
Hardware version I545.07
Security software version MDF v1.0 release 3 VPN v1.4 release 2
Click to expand...
Click to collapse
If your phone doesn't update to lollipop then you are very lucky man. You should never update to lollipop because your bootloader will be even more locked with "Secure Download". This is mainly why i hate lollipop and all samsung lollipop smartphones.
Your Kitkat is very good i'm sure you do not want bugs so you would not like to update to lollipop.
A LOLLIPOP SMARTPHONE DOESN'T EVEN VALUE MORE THAN A SCREW.
Click to expand...
Click to collapse
Click to expand...
Click to collapse

Android 5.1.1 Lollipop update is finally rolling out for Samsung Galaxy Note 3 Neo :D

The Android 5.1.1 Lollipop update is finally rolling out for Samsung Galaxy Note 3 Neo.
According to GSM Arena, the Android 5.1.1 Lollipop update is currently rolling out to the Samsung Galaxy Note 3 Neo users in South Korea. This update will also be accompanied with the Android for Work and a few security patches.
It will also fix the Stage Fright malware vulnerability. As many devices are now experiencing the Stage Fright 2.0 vulnerability, this leaves this problem hanging for the Samsung Galaxy Note 3 Neo users.
The Android 5.1.1 Lollipop update will also bring the solution for the ultra power saving mode for the Galaxy Note 3 Neo through the on device encryption method. In addition, it will also fix the problem of device over heating and battery consumption, according to BGR.
It will also get the support for 4G LTE data connection services and Bluetooth 4.2. The Wi-Fi will also get an enhancement through this upgrade.
The Android Lollipop 5.1.1 update will be released as an over the air update which means that different users will receive it at different times. The automatic notification will be seen on the top left corner of the smart phone as and when the device is in line to receive this update.
The users who want to check for the update manually, can go to Settings > About device > Software update and check for the update themselves. The update is sized at 610 MB, and is best downloaded through a stable Wi-Fi connection.
With Android Marshmallow already out there, it does seem a bit strange that the Samsung Galaxy Note 3 Neo device is still receiving the previous firm ware upgrade instead of the latest one.
Source : en.yibada.com

search a actual Googlefree ROM

Hello, everybody,
i have a Samsung Galaxy S9Plus / G965F / start2lte with Stock Android 10, on which i have flashed TWRP 3.3.1-0
So far I have used a Sony Z3 with LOS_16 from which there were regular security updates and such a setup was running as I describe it.
I would like to be as free as possible from Google, i.e. I make a point of not installing any unnecessary Google Apps/services.
Later the phone should be encrypted and rooted via Magisk to install at least the following basics (AFWall, AdAway/Blokada, Xposed Framework and Xprivacy).
I'm looking for a custom rom, preferably nothing experimental (so already pretty stable) and as up to date as possible and with regular security updates in the future.
I've looked at several ROM's here in the last days, LOS I knew from my Z3, the versions which are offered are either very experimental or comes with old security patches.
Others I have looked at (not tested yet). The first two looked promising (current, updates etc.) but always with Google Apps/services
EvolutionX / Google apps incl.
Galaxy Project / Google apps incl.
EthanRom / Security Updates September 2019
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Can anyone recommend me a ROM that fits my needs?

Meizu M5 M611H Custom ROM

Hello everyone, I'm gonna be quick as possible I will join basic info at the end,
I have a Meizu M5, I want to use a different OS on the phone, I dont care if its a modified OS or anything, or even the official Android 6.0.1, I did a bit of research on how to root, flash ....etc I guess "Custom ROMs" have to be "phone compatible",
is it possible to use the official Android on my phone? if yes where can I get it?
I'm okay if anything goes wrong while flashing or rooting...
Marketing Name: MEIZU_M5
Model: M611H
Android Version: 6.0
Android Security patch date: February 5, 2018
Build number: Flyme 6.3.1.0G
infgrs said:
Hello everyone, I'm gonna be quick as possible I will join basic info at the end,
I have a Meizu M5, I want to use a different OS on the phone, I dont care if its a modified OS or anything, or even the official Android 6.0.1, I did a bit of research on how to root, flash ....etc I guess "Custom ROMs" have to be "phone compatible",
is it possible to use the official Android on my phone? if yes where can I get it?
I'm okay if anything goes wrong while flashing or rooting...
Marketing Name: MEIZU_M5
Model: M611H
Android Version: 6.0
Android Security patch date: February 5, 2018
Build number: Flyme 6.3.1.0G
Click to expand...
Click to collapse
Hi,
To install a custom ROM, the ROM needs, indeed, to be compatible with your phone. People make the compatible by building them this way. When you talk about "Official Android", I assume you're talking about the Android Experience from the Pixel phones. There are some ROMs that reproduce very closely this experience (one of them is called Pixel Experience). Unfortunately this ROM isn't available for your phone.
What I found tho, is this article saying you can install Lineage OS 13 (Android 6) on your phone. Here it is :
https://www.getdroidtips.com/lineage-os-13-meizu-m5
Edit#1: the download link for the ROM is gone, and I didn't find any other ROMs for your phone. You can try to search yourself, it's super easy, just type " (name of the phone) custom ROMs " on Google.

Just got a Samsung Galaxy A21. System updates are postponed until tomorrow. How do I root it?

So the other day we got a Samsung Galaxy A21 with Android 10 (locked to Simple Mobile), Kernel version 4.9.190-20280533 #3 Mon Dec 21 14:23:09 KST 2020, and Build number QP1A.190711.020.S215DLUDU2ATL3. I tried looking up rooting guides, but I couldn't find anything that laid it out clearly, the instructions were unclear on various things (such as which builds were supported and just general wording). How would I go about rooting our phone? ~Cherri
We've been able to delay the update process more. Does anyone know how we can root it? We still can't find anything. ~Cherri

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