ROM support for g920r4 - Galaxy S6 Q&A, Help & Troubleshooting

I'm starting to see a recurring theme of basically zero support or information for this device. I've tried researching myself to basically no avail and it's starting to get a little upsetting.
The memory management on stock firmware of this device is pretty atrocious, and while I held off based on the rumour of knox being needed for samsung pay, I would do anything to make this device ACTUALLY hold apps in memory. As well as debloat the living hell out of touchwiz. But every rom I've looked at supports every device under the sun, aside the r4 variant.
Anyone have any information as to what needs to be done or what I can do on my side to maybe help change this? Or did I buy a device I'm going to regret until I replace it?
This isn't to say I don't appreciate the ROM developers out there, I do! I just wish that device releases didn't get so fractured like this. It's beyond me why there has to be 15 variants of one phone, aside a few different modems
Thanks so much for any information in advance

Differences in models are done meet the different needs of different networks with different radio requirements un their areas of coverage. Enjoy your S6 and wait for official updates via OTA or you can try flashing this:
http://www.sammobile.com/firmwares/download/48614/G920R4TYU2BOF7_G920R4USC2BOF7_USC/

I'm running 5.1.1. I still have apps rarely stay and touchwiz uses 70% of 3gb of ram out of the box, which seems a bit absurd. I was really hoping that update would do the trick, as per the lollipop memory issues. but it seems samsung's aggressive memory management is more the issue than anything.

Related

[Q] advantages and disadvantages of custom roms?

i have got a samsung omnia7 and was thinking about using the sammy rainbow custom rom, what are the pro's and cons doing this?
atm i have interop unlocked it but as i am still under warranty was curious of the effects.
advice would be grateful
It varies heavily ROM to ROM. However, there are a few common things.
Advantages:
More device control. With the policy system disabled, you can modify almost anything.
More homebrew apps, and more powerful ones (things like bazaar).
Native homebrew apps and ported WinMo apps.
Install XAPs directly (such as from IE), instead of using a PC.
If you find a bug, you can directly talk to the devs about fixing it (or possibly fix it yourself).
You may get updates before your carrier would provide them normally.
Disadvantages:
Higher risk of bugs since the ROMs get a lot less testing than official ones.
Updates may come later because you have to wait for a custom packaging of the update.
Not all custom ROMs are updatable; you might need to replace it with a new version which means you'll lose all your data.
Turning off the policy system increases your risk of malware if you arent' careful what you install.
Custom ROMs may have malware built in (not saying any of them do, but it's a risk).
Currently, I'd suggest waiting a little while to see where the Samsung ROM scene goes, what bugs are found and how quickly they're fixed, what features are available and how useful they are. However, it's pretty much always possible to go back to a stock ROM (unless you somehow really badly mess up your phone) so if you want to experiment or be an early adopter, go ahead. Otherwise, I think it'll be pretty clear what ROMs are good and where the custom ROM scene is going (support- and feature-wise) within a month or so.
so i would be safer to wait and see what the dev of the roms is going to do in the case of bugs.
thanks
That's my take. Note that I'm a dev working very hard on hacks that works with stock ROMs though - somebody who spends their time developing custom ROMs may well give completley different advice. There are certainly lots of advantages to going with custom ROMs, even at this relatively early point (it helps that a lot of the experience from HTC custom WP7 ROMs carries over to Samsung ROMs as well).
it seems as though the custom roms for omnia 7 are coming on leaps and bounds, what with MIRO's ROM http://forum.xda-developers.com/showthread.php?t=1499102
there seems to be very little on the way of bugs with his atm so i think i will give that one a shot. i know i am new at this but if you don't ask then you never find out things right
thanks for your advice and input....much appreciated

What is the current state of RAM management on the S6?

Hey, I'm considering buy a S6 or an S6 edge but one of the things I'm worried about is the problems with RAM. I've read a lot about problems with RAM management on the S6 with it not able to keep apps running in the background. I can foresee this being very annoying. From what I've read on these forums, I know that people started editing DHA/FHA values and that custom ROMs seem to have helped a lot.
I did however read some recent posts which said that these fixes didn't work and the phones slowed down after a while and still had bad multitasking. I wasn't able to find a place where all the information about RAM fixes was collated so I was wondering if someone could point me in the right direction or tell me that with modding the S6, does the multitasking and ram management become usable? Or is there still significant problems with how the memory is handled?
I think you answered your question yourself.
There are a lot of threads in this forum about that topic and that si where you mostr probably got your information from. So need to open another one.
In the end you want an answer if to buy or not to buy (I know everybody would want that) but nobody cant do that.
It's your decision!
Skip the S6 IMO, the moto x or the new nexus will be a better choice at this point in time.
It's supposedly fixed (7-10 apps can multi-task) with the newest OH1 update pushed a couple of days ago.
JoeFCaputo113 said:
It's supposedly fixed (7-10 apps can multi-task) with the newest OH1 update pushed a couple of days ago.
Click to expand...
Click to collapse
Yes but is it still aggressively killing apps?

How to download ota/firmware upgrade

So im using the moar rom and i saw there are like 5 new verisions of the latest firmware. After some reading i found if you download the ota update you can then install it with the flashfire app. But ota doesnt let me even look for an update. So i tried removing root from supersu opition and phone got stuck in bootloop. Then i tried to find the firmware bootloader from the moar list and didnt find it also. So only way i know how to upgrade firmware is download from sammobile, odin, then reroot reflash.
anyways no surprise no 1 can answear, but i understand the majority had the note 4...and would of gotten the note 7 when it was time to upgrade. So there isn't support for note 5, espically how a whole year went by and theres only really 1 rom, that is also outdated now. No offense to moar but i loved using it for so long, but i just realized moar is 5 firmware upgrades behind and its just moar. So what i decided to do is go back to being offcial, untill note 8 comes and support ends for note 5. Thats what ive read on google, if there are firmware upgrades its better to be on stock, once support ends then its better to be on custom rom. So when i do have my new note 8 in hand i can revert to w.e verision moar ends up
Ya i would of never probly got this phone if i new there was such a lack of support for it. When i was doing a little research b4 i got this phone i found alot of different development for the note 5. Didnt realize most of it was for the other versions besides sprint. O well. As for getting ota updates i believe u have to flash back to stock. So odin back to official stock firmware.
It's Samsung in-house processor to blame for not having cm or aosp ROMs to play with and only tw ROMs. there is only so much you can do different on tw to make it your own. Phones everywhere is getting locked down and developers are leaving or getting older a lot of stuff plays into why there not a lot of options but be grateful at least we have something. Try the note 7 ports which are nice or try creating our own ROM to share.
Sent from my SM-N9300 using XDA-Developers Legacy app
bonebeatz1234 said:
It's Samsung in-house processor to blame for not having cm or aosp ROMs to play with and only tw ROMs. there is only so much you can do different on tw to make it your own. Phones everywhere is getting locked down and developers are leaving or getting older a lot of stuff plays into why there not a lot of options but be grateful at least we have something. Try the note 7 ports which are nice or try creating our own ROM to share.
Click to expand...
Click to collapse
Right Bonez, or they should buy a phone that works on their provider the way they think it should to begin with instead of whining about stuff like this. Like you said, this is probably going to be the last unlocked touchwiz device for u.s. Carriers...
tdunham said:
Right Bonez, or they should buy a phone that works on their provider the way they think it should to begin with instead of whining about stuff like this. Like you said, this is probably going to be the last unlocked touchwiz device for u.s. Carriers...
Click to expand...
Click to collapse
Exactly, because of Android Pay, and Samsung Pay, there are valid reasons why you don't want back doors into a device. I think the age of custom roms is coming to a close, I'm sure someone will be able to develop something, but the time investment to do that goes up exponentially the harder they make it to unlock a device.
In all honesty, other than bloat and battery life I have seen no reason to root my current Note 5. I had done it to a previous Note 5 that broke, but didn't see much of a difference in battery life.
socos25 said:
Exactly, because of Android Pay, and Samsung Pay, there are valid reasons why you don't want back doors into a device. I think the age of custom roms is coming to a close, I'm sure someone will be able to develop something, but the time investment to do that goes up exponentially the harder they make it to unlock a device.
In all honesty, other than bloat and battery life I have seen no reason to root my current Note 5. I had done it to a previous Note 5 that broke, but didn't see much of a difference in battery life.
Click to expand...
Click to collapse
There will always be custom roms, just not for U.S. based carriers that have the ability to lock the phones down. However, many of the true android phones are still available in unlocked models...
I know that the LG v20 and the Google Pixel are a couple models that will work in the U.S. Getting international unlocked models is tricky because they may not work well with our bands.
Custom roms are about having extra features like free hotspot and lots of other stuff that doesn't come stock. Truthfully, I don't use but a small percentage of features I offer in ours.

Closest MM/N ROM to AOSP for G930F?

Until recently I've used a Sony, but a couple of bad experiences (+ 2 bad replacements) and need for wireless charging due to work + other HW features this time round, means I've switched to a Samsung S7 (G930F). Yeah, I know, Exynos development, but I needed the hardware spec and it came up cheap. Anyhow, it's rooted, unlocked and running TWRP, and I'm trying out a couple of roms..
I usually run without GApps (no flames or "Why use android if not using GApps", please!), and I'm happy to run 6.x + Xposed, or 7.x without Xposed. But as I've only ever used AOSP variants/CM, I'm a bit unsure about choosing a rom based on modding the official Samsung firmware, so I thought I'd ask here to find about the differences "under the hood".
The most stable roms for the G930F seem to be stripped-down derivatives of Samsung official releases - but how close can I get to a stable AOSP experience? I'm not only thinking about the user interface, also about "under the hood" - some custom roms might just strip out Touchwiz and apps, others might strip out a lot more and try to clean up or get closer to a AOSP/CM style "clean" rom underneath. That's more what I'm after, a good quality stable clean rom that's trying to get close to AOSP/CM as much as Samsung makes possible and without GApps already built-in.
But at that point I'm basically lacking knowledge, so... How close do roms based on Samsung's firmware actually get to AOSP? What sort of things get left in that detract from "pure" android? Which roms are closer to AOSP under the hood, or strip out "more" of the Samsung/Gapps code?
Kryx Rom or Extreme Debloated + Nexus Conversion Pack or Google pixel rom
Use LineageOS if you are willing to deal with a few minor bugs.
I'm trying out Lineage right now - it's mostly fine, the main practical issue is an over-aggressive noise gate on phone calls, it cuts off words and makes speech hard to understand at the other end. Other issues I'm seeing are lack of power menu volume panel and crash bugs in the internal web view used by some apps. Not bad for pre-release.
One main question/concern with using a trimmed-down Samsung rom is, I haven't got any idea what Samsung do to AOSP Android/kernel, nor how much of it is undone. Gods know how often manufacturer mods have led to problems and weaknesses in an otherwise good product, and so it's not a theoretical question, manufacturer versions often seem to leave the entire firmware in quite an unknown state. I know there can't be any absolute answers, but any light-shedding would be really useful.
noob924 said:
Kryx Rom or Extreme Debloated + Nexus Conversion Pack or Google pixel rom
Click to expand...
Click to collapse
Kryx 1.2 is coming up with zip sig failure when I try to flash it. No sign that it shouldn't be signed, or is expected to come up with this error though, otherwise I'd try it anyway.

[ROM][REQUEST][POLL] Should i develop a rom for the Tab S6??

Hi all,
i own a Tab S6 T860 (non-lte) for quite a while now, about 6 months.
There are some downsides like the horrible unbuffered screen tearing that you'll get with fast-scrolling, but the overall device is pretty premium-sided, and it's got a decent processor, a great display (color/resolution wise) although im missing 2160p in youtube.
Question is as i (until now) didnt bothered developing for a new device, since i had my hands full with the MiPad4, some alcatel devices and are Maintaining official LineageOS for three legacy devices, should i develop for this one if the community still wants it.
The lead-dev of the MiPad left it so im thinking about developing for the Tab S6 now.
I would only develop LineageOS, starting with 16.0 then doing 17.1 and then 18 but idk how long it would take, since ive no real knowledge of the newest platforms and how they are built, so i'd be reading/trying out stuff a LOT before some release nightlies. The "latest" i developed for was the MiPad4 with a sdm660 btw but i mainly do legacy (e.g 8953/8952/8926).
So please leave your feedback or any other opinions/questions, if we reach a decent amount of people who still want it i'll start right away when im back home from my vacations on 18th.
Best Regards!
Edit: Since theres no real telegram group, and i MAINLY talk via telegram i made one so you can contact me quickly.
https://t.me/joinchat/Bn6f-VKeQfZfiKXo69h3Mw
#reserved 1
I would LOVE to have LOS on my Tab S6 (SM-T860) WiFi-only tablet!
Don't even care about stuff like fingerprint, external keyboard, Widevine, Bluetooth, any 'functionality' similar to what Samsung 'provides' like, you name it.
I've spent sooo much time, and a few dollars, trying to get preinstalled stuff to *not* work! but still be able to boot—Knox bull****, anyone?
And having telephony **** on my WiFi-only tablet, either. Something that has baffled me for years is why a 'custom' ROM for a Wifi-only device has software that trys to interact with nonexistent hardware, using up cpu as it continually tries...on a bit of a rant, there.
So yeah, I'm all in. FWIW, I helped write the instructions, and did a *lot* of testing for rooting the Tab S5e, so I ain't scared to test out stuff; check it out, here:
https://forum.xda-developers.com/tab-s5e/how-to/galaxy-tab-s5e-sm-t720-root-t3947806
TiTiB said:
I would LOVE to have LOS on my Tab S6 (SM-T860) WiFi-only tablet!
Don't even care about stuff like fingerprint, external keyboard, Widevine, Bluetooth, any 'functionality' similar to what Samsung 'provides' like, you name it.
I've spent sooo much time, and a few dollars, trying to get preinstalled stuff to *not* work! but still be able to boot—Knox bull****, anyone?
And having telephony **** on my WiFi-only tablet, either. Something that has baffled me for years is why a 'custom' ROM for a Wifi-only device has software that trys to interact with nonexistent hardware, using up cpu as it continually tries...on a bit of a rant, there.
So yeah, I'm all in. FWIW, I helped write the instructions, and did a *lot* of testing for rooting the Tab S5e, so I ain't scared to test out stuff; check it out, here:
https://forum.xda-developers.com/tab-s5e/how-to/galaxy-tab-s5e-sm-t720-root-t3947806
Click to expand...
Click to collapse
Thanks for the info about the S5e, i was unaware of how well it is supported.
I would definitely do stuff like fingerprint, widevine, Bluetooth (PEN) and stuff.
But idk about those keyboards samsung offers and how they function since i cant test it on my own.
Same goes for the LTE but im pretty sure i can just use the same blobs.
BTW anyone has a firehose package for the tab s6 by chance???
I too would love LOS in this device. Samsung UI is cluttery, lagging (on mine), and an absolute mess. My PocoF1 gives me better Honkai Impact 3 (a gatcha action fighting game) performance than this tablet, and the poco is an SD845, with lite LOS. So yeah, I'd love to have this. My warranty is void anyways (because samsung decided so I haven't done a thing to void it), so it'd be great to have a reason to take advantage of that.
Chiming in for a plea to get a Lineage build for the Tab S6.
Such a gorgeous piece of hardware beset by such a ****ty software implementation. Why does Samsung insist on abusing its customers? I'd gladly pay for a Lineage or AOSP rom for our device.
Alright, a little update:
Kernel is done -> link found below
It has to be handled with care as of now. Installing it on my running rom resulted in a crash when unlocking the device. A quick factory reset fixed the problem but keep that in mind when installing this on your device.
Rom will follow up hopefully till next month - but i cant promise anything.
T-860:
https://dl.keksla.wtf/boot_t860.img
T-865:
(uploading)
Thargorsson said:
Alright, a little update:
Kernel is done -> link found below
It has to be handled with care as of now. Installing it on my running rom resulted in a crash when unlocking the device. A quick factory reset fixed the problem but keep that in mind when installing this on your device.
Rom will follow up hopefully till next month - but i cant promise anything.
T-860:
https://dl.keksla.wtf/boot_t860.img
T-865:
(uploading)
Click to expand...
Click to collapse
i would love to have custom kernel for samsung rom, but i don mind if you can make enhancements to the kernel like under volt or to solve the graphics lagging issues. it was just tiny changes involved in the past to make it work for both stock and LineageOS but for android 10, i have no idea
i have long inactive in both rom and kernel developments and i doubt how long should it take to get familiar with changes from android 7 to 10
ps i am still on pie, too lazy to upgrade due to my csc is tgy, which lacks updates as usual, and i dont wanna reinstall everything as to switch to dbt and to re-enter all my passwords
btw, may i ask if the stock android 10 fixed the problem with fast scrolling? i have experiences lags and graphics distortions with the samsung browser which was way toooooo unacceptable for a top device like tab s6
ykkfive said:
i would love to have custom kernel for samsung rom, but i don mind if you can make enhancements to the kernel like under volt or to solve the graphics lagging issues. it was just tiny changes involved in the past to make it work for both stock and LineageOS but for android 10, i have no idea
i have long inactive in both rom and kernel developments and i doubt how long should it take to get familiar with changes from android 7 to 10
ps i am still on pie, too lazy to upgrade due to my csc is tgy, which lacks updates as usual, and i dont wanna reinstall everything as to switch to dbt and to re-enter all my passwords
btw, may i ask if the stock android 10 fixed the problem with fast scrolling? i have experiences lags and graphics distortions with the samsung browser which was way toooooo unacceptable for a top device like tab s6
Click to expand...
Click to collapse
nope, sadly we still suffer from those issues on Q .
I dont have any good knowledge of how to apply those undervolts as i never done it before (lineageos requires stock govenors for official) but if you can point me to the correct commits i can look at it
Thargorsson said:
nope, sadly we still suffer from those issues on Q .
I dont have any good knowledge of how to apply those undervolts as i never done it before (lineageos requires stock govenors for official) but if you can point me to the correct commits i can look at it
Click to expand...
Click to collapse
oh...
there were some cpu/voltage tweaks for the same cpu before for my old devices. and for our tab s 6 there are a few devices with the same cpu like one plus. you can search the cpu model in github and then you can find the code name of it and those devices which use the same cpu. i used to get those tweaks for modifying kernels for my previous devices. however for our 855, sadly there's no port for the samsung devices afaik, so you may need to make some more changes in order to port them
---------- Post added at 05:54 ---------- Previous post was at 05:35 ----------
just found this one https://github.com/kdrag0n/proton_bluecross/releases
it should be a 855 with some oc according to the change log, but unfortunately i couldnt load the changes with my browser so i couldnt find the relevant commits
may be you can take a look at that
Thargorsson said:
Hi all,
i own a Tab S6 T860 (non-lte) for quite a while now, about 6 months.
There are some downsides like the horrible unbuffered screen tearing that you'll get with fast-scrolling, but the overall device is pretty premium-sided, and it's got a decent processor, a great display (color/resolution wise) although im missing 2160p in youtube.
Question is as i (until now) didnt bothered developing for a new device, since i had my hands full with the MiPad4, some alcatel devices and are Maintaining official LineageOS for three legacy devices, should i develop for this one if the community still wants it.
The lead-dev of the MiPad left it so im thinking about developing for the Tab S6 now.
I would only develop LineageOS, starting with 16.0 then doing 17.1 and then 18 but idk how long it would take, since ive no real knowledge of the newest platforms and how they are built, so i'd be reading/trying out stuff a LOT before some release nightlies. The "latest" i developed for was the MiPad4 with a sdm660 btw but i mainly do legacy (e.g 8953/8952/8926).
So please leave your feedback or any other opinions/questions, if we reach a decent amount of people who still want it i'll start right away when im back home from my vacations on 18th.
Best Regards!
Edit: Since theres no real telegram group, and i MAINLY talk via telegram i made one so you can contact me quickly.
https://t.me/joinchat/Bn6f-VKeQfZfiKXo69h3Mw
Click to expand...
Click to collapse
I'm in at 17.1 level and up. Don't want to go back...
YES! Yes please please please! I have been dreaming and hoping LOS would come to the Tab S6 for SO long now. So yes, please make a rom for it. Please.
I would love to have LOS rom support on the Tab S6! The lack of Lineage OS support was the one thing holding me back from purchasing the Tab S6, compared to the Tab S5E, but I wanted the faster processor, storage, and larger memory capacity.
That said, if you develop a working LOS rom, that would be a huge win for all Tab S6 users!
I don't think there is a person on XDA with the tab S6 that would not want to see a custom lineage Rom built. I do want a working Spen though. Im on stock 10 One UI 2.5 and samsung is extremely slow at releasing the kernel source code for the 860. Its definitely worth it to use to build one if you can. Thanks for developing on the tab S6.
LOS for T-865 ?! Yes, absolutely
P.S: Working pen would be great of course.
Still On The Fence.
lucgardos said:
LOS for T-865 ?! Yes, absolutely
P.S: Working pen would be great of course.
Click to expand...
Click to collapse
I would support a ROM for this device, but I am leery about past issues and previous devices. I had 3 smp600 units, and all three were beaten to the edge with constant testing of all the ROMS I could grab. But, only ONE of those tabs choked on something from a pure LOS build. Then it hit a brick wall. I could never find a way past a Nov 18 build. So, now with two smt870 units, I will tread lightly. And, big question: WHY are we STILL stuck with ODIN for this process? I know nothing of the process of coding and writing these great ROMS, but having to drag out a WINDOWS laptop to update my android device seems like many steps backwards. I have no NEED for a laptop save for praying for Odin to even run properly. Wish there were better ways for us old farts who've forgotten more tricks than new ones have been taught. But, I am on board to get the Sammy off of my tab. Thanks for your errors.
;-DeanoD
DeanoD said:
I would support a ROM for this device, but I am leery about past issues and previous devices. I had 3 smp600 units, and all three were beaten to the edge with constant testing of all the ROMS I could grab. But, only ONE of those tabs choked on something from a pure LOS build. Then it hit a brick wall. I could never find a way past a Nov 18 build. So, now with two smt870 units, I will tread lightly. And, big question: WHY are we STILL stuck with ODIN for this process? I know nothing of the process of coding and writing these great ROMS, but having to drag out a WINDOWS laptop to update my android device seems like many steps backwards. I have no NEED for a laptop save for praying for Odin to even run properly. Wish there were better ways for us old farts who've forgotten more tricks than new ones have been taught. But, I am on board to get the Sammy off of my tab. Thanks for your errors.
;-DeanoD
Click to expand...
Click to collapse
Well if your not rooted you dont need odin you can install official release update. If you mean to install custom rom like lineage you again dont need odin after you install TWRP.
Actually, on debloated rooted stock ROM I don't see any problems so far..Device is holding it solid and sound.
Flavour of Lineage is absolutely welcome, but personaly I wouldn't use it because a lot of bugs and non functional addons.
Personally...this tablet without pen is like Ferrari without fuel.
Rooted debloated stock is miles ahead of Samsung's incompetent shadow apps. But even as stripped down as I can make it, the ROM still lags and burns battery in the background. I've tried everything and can't get this beautiful expensive piece of hardware to perform to its specs. I respect others who love it as is, but I've never gotten comfortable with the pen and just want a light, fast tablet with a beautiful screen that doesn't overtax its battery.
I'd switch to Lineage on this device in a heartbeat.
this project still alive? seems dead for me.

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