Related
Unable to find non-MIUI ROM with encryption enabled. It seems nobody concerned about encryption. Original ROM (MIUI9) is encrypted by default with File Based Encryption (FBE). A phone without encryption is "a public phone".
I have tired Oreo ROM from Lineage, CrDroid, and DotOs and when i encrypt phone, its unsuccessful and unbootable. Is Treble causing trouble or TWRP need TWRP-FBE? Anyone success in encryption please create a thread "List ROM-FBE including TWRP-FBE."
Thanks.
The title says it all... does anyone use GrapheneOS? Thoughts? Likes/dislikes?
Are there any phones that are better for it than others? I was looking at the Pixel 3a.
Hi sniper8752,
I know you question is now a few months old (i hope i'm not to late for my answer).
I guess cause there are nearly no xda GrapheneOS threads a question such yours running under the "radar".
I'm on, well let's say, GrapheneOS in examination marks because i don't use the OS on my pixel 4 xl as the dev intented it.
I don't know whether you were on the GrapheneOS website in the past. According to the website you should install GrapheneOS once over fastboot and lock the bootloader again to get the AVB fully working again.
That give you the most security cause you can only boot GrapheneOS and install GrapheneOS Updates over the build-in updater app.
But from my knowledge you can't install EdXposed or Magisk then cause you change partitions and AVB blocks the booting process then.
So i'm using GrapheneOS as normal Custom Rom and unlocked Bootloader to be able to use Root with Magisk.
That why i say i'm having a GrapheneOS in examiniation marks
From user view it's a clean Android 10 ROM without (!) Gapps etc. This won't change cause it a Rom for people which care about privacy and security.
What i really like too are the facts that it explicity apply the full security patches on the supported devices (which are only the pixels) and that it uses a securized kernel and some other under the hood security improvements.
I'm using the rom (stable channel) since a few days now and it's runs totally smooth and i didn't find any bugs
so far.
Atm i'm thinking to offer unofficial builds from the rom with according Magisk pre-patched boot images here on xda. But i'm not completly sure about that.
Edit:
And i forgot still one thing: The support from GrapheneOS for a device ends if google stops the support for it. Again the reason is security: Some parts of your device gets updates through the device oem. GrapheneOS can't cover this so the dev doesn't support the device anymore.
All in all GrapheneOS has another philosophy then most of the custom roms here on xda. It doesn't want to extend the lifetime of devices. It want to gives the user a more privacy and securize-friendly rom during the lifetime of device.
Hey mate - did you manage to get for example Google Photos running if you add MicroG? (in terms of Backup).
I am still not able to ditch that (at least until my full backups from the Pixel seize to exist Jan 2021 I believe...).
Mind you that the Google Photos works just fine on CalyxOS with backup functions operating.
GCam works on both (Graphene with a Services spoofer apk). Still secure.
CalyxOS using the MicroG.
Graphene OS does not allow me to use Google Photos's backup function. I've read that if I backup using Titanium root and then deploy in Graphene (with root) it should work. Using your method + Magisk maybe I can make this work ...
Battery life on Graphene has been epic for me ...
GPS was very slow and sort of inaccurate on both ...
For all else I am perfectly fine with both.
So, I've been wanting the Galaxy Tab S7+ for months. But I haven't had the money for it until now (yeah, you guesses it, stimulus payment). But I'm still on the fence about buying it. I know bootloader unlock, TWRP and Magisk root is available for this tab. But I don't want to be limited to just running stock-based ROM's. My plan is to flash a Project Treble-based firmware like Phh Treble, Resurrection Remix.
The questions I'd like to ask are:
1. This tab appears to be Treble compatible, it is listed on the Treble device compatibility page as working. But I would like to hear from an actual owner of this device that has successfully booted and ran a Treble/GSI ROM
2. The partition layout is ARM64 A/B and system-as-root?
3. Besides unlocking bootloader and flashing TWRP, are there any other special considerations I would need to know about?
Without this info, I won't buy, and Google doesn't always produce solid answers. I would like to become an active developer for this device as well, but I need compelling reasons to buy it, besides just great hardware, the latest Android 10/11, that kind of thing....the superficial stuff.
I could just buy now and test when I get it, Amazon has a 30 day return policy. But I don't think they will accept a tablet return if the warranty has been voided by the user. So this really isnt an option.
AnonVendetta said:
So, I've been wanting the Galaxy Tab S7+ for months. But I haven't had the money for it until now (yeah, you guesses it, stimulus payment). But I'm still on the fence about buying it. I know bootloader unlock, TWRP and Magisk root is available for this tab. But I don't want to be limited to just running stock-based ROM's. My plan is to flash a Project Treble-based firmware like Phh Treble, Resurrection Remix.
The questions I'd like to ask are:
1. This tab appears to be Treble compatible, it is listed on the Treble device compatibility page as working. But I would like to hear from an actual owner of this device that has successfully booted and ran a Treble/GSI ROM
2. The partition layout is ARM64 A/B and system-as-root?
3. Besides unlocking bootloader and flashing TWRP, are there any other special considerations I would need to know about?
Without this info, I won't buy, and Google doesn't always produce solid answers. I would like to become an active developer for this device as well, but I need compelling reasons to buy it, besides just great hardware, the latest Android 10/11, that kind of thing....the superficial stuff.
I could just buy now and test when I get it, Amazon has a 30 day return policy. But I don't think they will accept a tablet return if the warranty has been voided by the user. So this really isnt an option.
Click to expand...
Click to collapse
1. At present, AOSP v304 GSI can be booted, but no Magisk yet. This is if you have Android 11 stock FW. The situation with GSI might be different (probably better) with Android 10 stock FW, but I can no longer test this, as the latest BUC1 build blocked the downgrade path. You can still downgrade to Android 10 (up to ATK3) if you're on build BUBB or below.
2. This device uses a Super partition (also called dynamic partitions) for system, vendor, etc.. Because of this, flashing GSI is no longer trivial. You can try using this tool to flash a GSI from TWRP.
3. Currently TWRP cannot access /data if it's encrypted. You need to flash Multi-Disabler to disable encryption (which requires formatting /data) if you want TWRP to access it. Also, while Magisk works on stock FW, be careful when debloating as some Samsung components are not happy with certain components removed and would cause trouble.
LSS4181 said:
1. At present, AOSP v304 GSI can be booted, but no Magisk yet. This is if you have Android 11 stock FW. The situation with GSI might be different (probably better) with Android 10 stock FW, but I can no longer test this, as the latest BUC1 build blocked the downgrade path. You can still downgrade to Android 10 (up to ATK3) if you're on build BUBB or below.
2. This device uses a Super partition (also called dynamic partitions) for system, vendor, etc.. Because of this, flashing GSI is no longer trivial. You can try using this tool to flash a GSI from TWRP.
3. Currently TWRP cannot access /data if it's encrypted. You need to flash Multi-Disabler to disable encryption (which requires formatting /data) if you want TWRP to access it. Also, while Magisk works on stock FW, be careful when debloating as some Samsung components are not happy with certain components removed and would cause trouble.
Click to expand...
Click to collapse
Thanks for the info, I honestly didn't think I would ever get an answer.
You say the AOSP GSI can be booted. But do you speak from experience? Or just from what others have said?
The part about BUC1 blocking the downgrade path is useful, I'll keep that in mind before installing any OTAs or flashing firmware with Odin. Yes, I do imagine that Magisk is more compatible with AOSP based ROMs vs stock, that has always been my experience on other devices.
I already did some reading, I'm aware of the super partition thing. I know I'll have to unpack and repack the super.img, replacing the system.img with a Treble one.
I'm also aware of the file based encryption that TWRP can't read, I don't encrypt my devices, and plan to disable it.
I know all about debloating troubles, I've done it on numerous devices, important stuff can definitely break if you're not careful.
I'm wondering if you can answer a few more questions:
1. Are you rooted?
2. Can the system partition be remounted as read/write from within Android on stock firmware? I have heard cases where the dynamic partitions can prevent this, but supposedly it's not usually an issue on custom ROMs, just stock. I ask because I will be debloating, but if remounting system isnt possible, then I'll need to rely on Magisk for systemless debloating. Or just remain unrooted and debloat with ADB package disable commands (this doesn't really delete anything, and works without root).
3. If you are running Magisk,can you upload a screenshot of the main screen? I just want to see the A/B and SAR values.
4. Can you install the free version of Treble Check from Play Store, and post screenshots of the main info screen?
5. Is it possible to moves apps to SD without enabling adoptable storage (on stock, I know custom AOSP firmwares will require AS, or a root app like Apps2SD and a 2nd partition on SD.
I'm hoping to hear from at least another confirming user before I make a buying decision, spending $1k+ on a high end tablet is a big deal.
And if I do buy, I am serious about becoming a developer.
LSS4181 said:
1. At present, AOSP v304 GSI can be booted, but no Magisk yet. This is if you have Android 11 stock FW. The situation with GSI might be different (probably better) with Android 10 stock FW, but I can no longer test this, as the latest BUC1 build blocked the downgrade path. You can still downgrade to Android 10 (up to ATK3) if you're on build BUBB or below.
2. This device uses a Super partition (also called dynamic partitions) for system, vendor, etc.. Because of this, flashing GSI is no longer trivial. You can try using this tool to flash a GSI from TWRP.
3. Currently TWRP cannot access /data if it's encrypted. You need to flash Multi-Disabler to disable encryption (which requires formatting /data) if you want TWRP to access it. Also, while Magisk works on stock FW, be careful when debloating as some Samsung components are not happy with certain components removed and would cause trouble.
Click to expand...
Click to collapse
Thanks for the info, I honestly didn't think I would ever get an answer.
You say the AOSP GSI can be booted. But do you speak from experience? Or just from what others have said?
The part about BUC1 blocking the downgrade path is useful, I'll keep that in mind before installing any OTAs or flashing firmware with Odin. Yes, I do imagine that Magisk is more compatible with AOSP based ROMs vs stock, that has always been my experience on other devices.
I already did some reading, I'm aware of the super partition thing. I know I'll have to unpack and repack the super.img, replacing the system.img with a Treble one.
I'm also aware of the file based encryption that TWRP can't read, I don't encrypt my devices, and plan to disable it.
I know all about debloating troubles, I've done it on numerous devices, important stuff can definitely break if you're not careful.
I'm wondering if you can answer a few more questions:
1. Are you rooted?
2. Can the system partition be remounted as read/write from within Android on stock firmware? I have heard cases where the dynamic partitions can prevent this, but supposedly it's not usually an issue on custom ROMs, just stock. I ask because I will be debloating, but if remounting system isnt possible, then I'll need to rely on Magisk for systemless debloating. Or just remain unrooted and debloat with ADB package disable commands (this doesn't really delete anything, and works without root).
3. If you are running Magisk,can you upload a screenshot of the main screen? I just want to see the A/B and SAR values.
4. Can you install the free version of Treble Check from Play Store, and post screenshots of the main info screen?
I'm hoping to hear from at least another confirming user before I make a buying decision, spending $1k+ on a high end tablet is a big deal.
And I am serious about developing for this device if I do buy. Mainly for AOSP firmwares or porting LineageOS, but maybe for stock too.
It looks like I can't delete the previous double posts, and editing causes it to be posted again. I hate the new XDA layout, the old was so much better.
AnonVendetta said:
Thanks for the info, I honestly didn't think I would ever get an answer.
You say the AOSP GSI can be booted. But do you speak from experience? Or just from what others have said?
The part about BUC1 blocking the downgrade path is useful, I'll keep that in mind before installing any OTAs or flashing firmware with Odin. Yes, I do imagine that Magisk is more compatible with AOSP based ROMs vs stock, that has always been my experience on other devices.
I already did some reading, I'm aware of the super partition thing. I know I'll have to unpack and repack the super.img, replacing the system.img with a Treble one.
I'm also aware of the file based encryption that TWRP can't read, I don't encrypt my devices, and plan to disable it.
I know all about debloating troubles, I've done it on numerous devices, important stuff can definitely break if you're not careful.
I'm wondering if you can answer a few more questions:
1. Are you rooted?
2. Can the system partition be remounted as read/write from within Android on stock firmware? I have heard cases where the dynamic partitions can prevent this, but supposedly it's not usually an issue on custom ROMs, just stock. I ask because I will be debloating, but if remounting system isnt possible, then I'll need to rely on Magisk for systemless debloating. Or just remain unrooted and debloat with ADB package disable commands (this doesn't really delete anything, and works without root).
3. If you are running Magisk,can you upload a screenshot of the main screen? I just want to see the A/B and SAR values.
4. Can you install the free version of Treble Check from Play Store, and post screenshots of the main info screen?
I'm hoping to hear from at least another confirming user before I make a buying decision, spending $1k+ on a high end tablet is a big deal.
And I am serious about developing for this device if I do buy. Mainly for AOSP firmwares or porting LineageOS, but maybe for stock too.
Click to expand...
Click to collapse
I actually booted it myself and kept a backup of it so I can test it a bit further if needed. With TWRP and appropriate backups it's not difficult to switch back and forth.
Since Magisk can't work with Android 11 vendor at the moment, and that recent GSI builds are not certified for some reasons (which blocks Google login), my current use of GSI is still a bit limited, so I'm mostly still doing stuffs on stock.
As for other questions:
1. I'm rooted on stock ROM with Magisk (it works there). Magisk does not work on GSI with Android 11 vendor at the moment.
2. I haven't tried mounting system r/w from within Android, but TWRP certainly could mount it r/w, as Multi-Disabler needs to modify stuffs there. For GSI, you need to use vndklite variants in order to be able to mount system r/w.
Honestly, this is my first Samsung Android device and is also my first device with a super partition, so I still have a lot to learn...
EDIT: I'm using a Galaxy Tab S7+ 5G variant. I think for Wi-Fi variant most things should be similar... but I'm not really sure.
LSS4181 said:
I actually booted it myself and kept a backup of it so I can test it a bit further if needed. With TWRP and appropriate backups it's not difficult to switch back and forth.
Since Magisk can't work with Android 11 vendor at the moment, and that recent GSI builds are not certified for some reasons (which blocks Google login), my current use of GSI is still a bit limited, so I'm mostly still doing stuffs on stock.
As for other questions:
1. I'm rooted on stock ROM with Magisk (it works there). Magisk does not work on GSI with Android 11 vendor at the moment.
2. I haven't tried mounting system r/w from within Android, but TWRP certainly could mount it r/w, as Multi-Disabler needs to modify stuffs there. For GSI, you need to use vndklite variants in order to be able to mount system r/w.
Honestly, this is my first Samsung Android device and is also my first device with a super partition, so I still have a lot to learn...
EDIT: I'm using a Galaxy Tab S7+ 5G variant. I think for Wi-Fi variant most things should be similar... but I'm not really sure.
Click to expand...
Click to collapse
I am using the WIFI variant (SM-T870) on the latest stock release (T870XXU2BUC6) with root and Magisk 22.1 running just fine. Root was accomplished by flashing a Magisk modified boot image with Odin found here https://forum.xda-developers.com/t/...-updated-3-29-21.4159291/page-2#post-84843377 on this thread. I used Titanium Backup to debloat and have had no issues at all. The performance is great and the stability sound. I would suspect that a similar arrangement could accomplished on the other versions of the tablet but cannot speak from experience. Personally I have never had much luck flashing Project Treble GSIs on any of my devices. They tend to be very unstable and iffy at best and I always wind up returning to stock or another custom ROM choice.
PLEASE BEFORE YOU decide to try this rom, you MUST read all of post 1, 2, 3 and 4 (about 10 minute read). If you think this is an unreasonable request, then stop reading now and find another rom. Thank you.
I am not responsible for lost data, identity theft, lost money, security vulnerabilities, bricked devices or any other hardware or software malfunctions that comes as a result of flashing this rom.
BACKUP YOUR DATA AND OLD rom BEFORE trying my rom.
If you are NOT an expert in using fastboot, adb, odin, heimdall, twrp, DO NOT use this rom. You must know how to use these tools to revert back to your old rom.
If you are new to flashing custom roms, do NOT attempt this.
If you need your tablet for work and something important, do NOT flash this rom. This rom could result in a bricked device or boot loop or non booting device or you not being able to revert back to your old rom.
What works
1. bluetooth
2. wifi
3. brightness
4. external audio
5. GPS
6. audio through headphone jack
7. audio over bluetooth
8. camera
What doesn't work
1. selinux is permissive. I have tried to make this build enforcing for weeks, but when I do, the OS doesn't boot and there is no adb logcat output despite making an "eng" build. Without adb logcat output, it's virtually impossible to determine what is wrong and I'm not spending anymore time on it. If having enforcing mode is important to you, use my 18.1 builds.
2. keyboard bug workaround. When prompted to enter something like a Bluetooth pin or text based password, sometimes the keyboard is not shown on the screen or off screen. The workaround is to goto settings, system, languages & input, on-screen keyboard, Android Keyboard (AOSP), appearance & layout, theme and choose "Material - follow system settings".
This keyboard bug is a LineageOS bug as per
https://review.lineageos.org/c/LineageOS/android_packages_inputmethods_LatinIME/+/325438
3. gapps. Some of you require gapps for whatever reason. I use Aurora Store for my purposes and thus have NO KNOWLEDGE of the current state of gapps.
There are various gapps projects (at least 5 in 2022). Each has pros and cons. It's your job to do the research and find a suitable gapps project. I suggest you allocate at least a couple of hours doing your own research. My rom works by itself fine without gapps. DO NOT talk about gapps in this thread. As a courtesy to gapps users, if you want to talk about gapps, I have opened a new thread at
https://forum.xda-developers.com/t/...m-t35x-sm-t550-sm-t560nu-and-sm-p550.4479285/
so you may discuss gapps wrt to the msm8916 platform. I will NOT be participating in that thread as I do NOT use gapps.
Thanks
1. LineageOS team for source code.
2. Kyle Harrison
- looking through the adb logcat and suggesting that my binder code was too old to work with Android 12's keystore2 code
- for the graphics and legacy camera patches to allow msm8916 to work with Android 12
- for his Motorola LineageOS 19.1 device trees so I could use his patches as a template for msm8916
3. @tarkzim
- adding back audio hal 2.0 and legacy camera hal 1.0 into the LineageOS trees
- helping me think through the msm8916 random reboots which was due to the TCP/IP patches
- maintaing and updating his repos so I can study them for learning purposes
4. pre ALPHA testers @breversa , @XDA_username00 for willing to test pre ALPHA builds and leaving feedback.
FAQ - I spent hundreds of hours building this rom. It was frustrating process from Nov 2021 to Aug 2022 running into bug after bug. The least you can do is spend a few minutes reading everything before posting.
Q1. Where are the source and kernel source files?
A1. The kernel source files are at
https://github.com/retiredtab/android_kernel_samsung_msm8916
The device tree files are at
https://github.com/retiredtab/android_device_samsung_msm8916-common/tree/lineage-19.1
https://github.com/retiredtab/android_device_samsung_gt510wifi/tree/lineage-19.1
https://github.com/retiredtab/device_samsung_gte-common/tree/lineage-19.1
The vendor tree files are at
https://github.com/retiredtab/android_vendor_samsung_gt510wifi/tree/lineage-19.1
https://github.com/retiredtab/vendor_samsung_msm8916-common/tree/lineage-19.1
The manifest.xml (or roomservice.xml) and build instructions for 19.1 are at
https://github.com/retiredtab/LineageOS-build-manifests
Q2. Is this ALPHA rom suitable as a daily driver?
A2. It can be depending on your requirements. I can't test every app so you try it yourself to see if it's suitable. I've been using this rom myself since mid March 2022 with no major issues. I suggest you do a clean install, see FAQ 11, and flash this 19.1 ROM BY ITSELF (no gapps, magisk, etc) and see if you like it. If you do like it and want to add gapps then see FAQ 12.
Q3. What if my app, xyz, doesn't work?
A3. If your app doesn't work, then go back to your old rom.
Q4. Your rom is laggy and buggy.
A4. If you find the above, then go back to your old rom. There's only so much software can do on a 2015 budget level tablet. Remember a budget tablet will have the slower SoC/CPU and less DRAM than a top of the line model. Your tablet will also run slower when you use gapps. You can run a lot of software without using gapps. Research fdroid, newpipe, Aurora store etc.
Q5. What TWRP should I use?
A5. You MUST use TWRP 3.5.2_9. Get it from
https://dl.twrp.me/gt510wifi/
Q6. Why should I use this rom?
A6. If you don't like this rom, then don't use it.
Q7. Will you offer monthly updates with security patches?
A7. I will try to offer monthly security patches, but that all depends on if I continue to have high speed Internet in the future.
Q8. Can you help me? I'm a newbie. Can you provide step by step instructions?
A8. I don't have the time to help newbies, so please do your own research. There are lots of tutorials, videos, etc on how to flash roms. Newbie questions must be posted in the Questions and Answers forum, not here.
Q9. Can I report a bug with respect to the rom?
A9. Yes, but you need to supply the following information. If you don't, I won't look at it.
You must provide an adb logcat of the problem and tell me how to reproduce it. Note I will not be downloading any apps that require money or an userid/password. For example, if you have problems with Netflix, I cannot help you since I don't have a paid subscription. If you use some app that requires an userid/password, I cannot help you as I'm not willing to create another userid/password even if it's free.
To get a logcat, open up a terminal window.
Code:
# clear the logcat first
adb logcat -c
# start logcat trace
adb logcat > problem.txt
# reproduce problem
# wait until problem has occured, then stop trace by hitting ctrl-c
# attach the problem.txt ZIPPED as text files don't seem to get attached properly
Q10. Will you still build 18.1 for this device?
A10. Yes, for rest of 2022, but I will make a decision in January 2023 on how 18.1 and 19.1 will be maintained. If you like to help by building 18.1/19.1, please let me know.
Q11. Do I need to erase everything and format my data?
A11. Yes, you MUST erase all the partitions (system, data, dalvik/art cache, cache) using TWRP and MUST format your data before installing 19.1 when you are coming from stock or an earlier version of LineageOS or from another custom rom. If you get stuck at the boot animation for more than 5 minutes, it's likely because you didn't follow the instructions I just wrote. Dirty flashes from stock, other custom roms or older LineageOS versions are not supported and not likely to work.
Q12. What gapps should I use?
A12. I don't use gapps anymore. I use Aurora Store. As of Nov 6, 2021, I no longer make recommendations on which gapps to use as your mileage may vary.
Let me by crystal clear. YOU NEED TO DO YOUR OWN HOMEWORK selecting between the various gapps offered. There are 5: opengapps, nikgapps, mindthegapps, flamegapps and bitgapps. Each one will have it's own installation instructions. The only recommendation I will offer to use the SMALLEST version of gapps.
Don't be surprised that whatever gapps you use might have problems like "Just a sec", voice not working, updating google play store please wait, etc. These are NOT problems of the OS as the OS will run fine without gapps. These are gapps problems and you must ask in the gapps forum why it doesn't work.
In addition, some of the gapps may not install properly when using TWRP and say "cannot /mnt/system". For those cases, please use the LineageOS recovery.img you can download from
https://sourceforge.net/projects/retiredtab/files/SM-T550/LineageOS-recovery/
By flashing the LineageOS recovery.img, it will overwrite the existing TWRP and you will get a different UI.
Q13. I'm having problems with gapps, can you answer why it's not working?
A13. I WILL NOT answer any questions regarding gapps. This thread is about the rom, not gapps. Android does not depend on gapps in order to work.
Questions about gapps, for your courtesy, should be asked at
https://forum.xda-developers.com/t/...m-t35x-sm-t550-sm-t560nu-and-sm-p550.4479285/
Q14. Why isn't my post answered or ignored?
A14. Questions already answered in the FAQ will be completely ignored. Again, I do not use Windows OS or gapps.
Q16. What speed up/optimization tips do you suggest?
A16.
1. Turn off animations. Go into developer settings, scroll down to the drawing section, and set window, transition and animator scale all to "off".
2. If you don't have a google account, don't install gapps. Use Aurora Store to get your apps as you can get all the same apps from the play store using an anonymous login.
3. Dont' run more than 2 apps at the same time. You can probably listen to music in the background and use a web browser at the same time, but don't expect great performance from a 2015 entry level tablet.
4. Use a web browser like Brave that has built in adblock and privacy features.
5. Use newpipe to watch your streaming content. It has built in adblock so you don't have to watch forced ads.
6. Look for apps that are open source, ad free and lightweight.
7. Remove all unused quick setting "bubbles" from the quick pull down menu. I only need and have 6.
Q17. Does this rom support Magisk for root?
A17. I don't use Magisk myself so I don't know and Magisk is always being updated to fool Google's certification process. Others have reported Magisk as working, but I won't answer any questions regarding it.
Q18. Will this rom ever become official?
A18. With 19.1, legacy devices like ours will NEVER be official due to lack of ebpf support. See https://lineageos.org/Changelog-26/
Also, I don't want the responsibilities that come with being an official maintainer.
Q19. What is the difference between this rom and others?
A19. This rom tries to be pure LineageOS with little to no modifications.
Q20. Will there be any major 19.1 code modifications in the future?
A20. I don't anticipate any major modifications. There may be some small bug fixes and minor code cleanup, but all the hard work in getting the rom up and running and fixing all the major bugs have been done completed. This doesn't mean the code is perfect or well organized, but I won't be doing any major changes now that 19.1 is working.
Q21. Why did you fork the device and vendor trees for 19.1?
A21. The msm8916 repos seem geared towards phones and sometimes do not work or cause boot animation loops for tablets so I decided to fork their repos. In other words, what's deemed as msm8916-common code isn't common to all devices.
In addition, since I'm building SM-T350, SM-T357W, SM-T550, SM-P550 and SM-T560NU (all use the same msm8916 code), it seems easier to maintain all of them if I can control my own code repos and not worry if my changes affects the phones or not.
I have completely decommonized and rearranged the 19.1 msm8916-common tree so it's easier for me to maintain and build.
Q22. Can you build a variant of this device? For example, a LTE or S-pen version.
A22. If I don't physically have the device, I cannot and will not build it unless I can boot and test it myself. Even then, there's no guarantee that I can get those variant features working.
Q23. Can I load this rom on a variant devivce like LTE or S-pen version?
A23. The rom is built for the device explicitly listed. If you are an advanced user and understand TWRP, adb, odin, heimdall, you can try loading it on a LTE or S-pen variant by modifying the updater-script, but it may cause a bricked device, bootloops or non functionality of LTE/S-pen. You have been informed and warned!
Q24. What major code changes are in 19.1 vs 18.1.
A24.
- iptables has been removed in favour of ebpf
- keystore v1 has been replaced with keystore v2 which requires that the binder calls have some built-in security
- audio hal 2.0 has been deprecated
- legacy camera hal 1.0 and snap app have deprecated
Q25. I don't like the taskbar, how do I turn it off?
A25. Choose settings, type task into the search bar. Choose enable taskbar and disable taskbar. This will leave the on screen nav bar. If you want to disable that, go to settings, system, gestures, system navigation, gesture navigation.
Q26. Okay, I understand the consequences and that this is ALPHA rom and willing to take the risks outlined, now where can I find the rom?
A26. You can download it from https://sourceforge.net/projects/retiredtab/files/SM-T550/19.1/
NOTE: All builds that I upload have been personally tested on my device to boot and function as described in post #1. Having said that, there's still a chance it won't work on your device due to human error, your configuration, your apps, etc. If it won't boot, always start with a complete wipe of everything and format your data in TWRP. This is known has a clean install. Backup your data before a clean install.
19.1 has been my daily driver since March 2022.
May 6, 2023 release notes
1. May 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-05
2. Whatever LineageOS changed since Apr 5 patches. About 7,400 files had to be recompiled.
Apr 13, 2023 release notes
1. Apr 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-04
2. Whatever LineageOS changed since Mar 5 patches. About 23,000 files had to be recompiled.
March 19, 2023 release notes
1. Mar 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-03
2. Whatever LineageOS changed since Feb 5 patches. About 24,500 files had to be recompiled.
Feb 12, 2023 release notes
1. Feb 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-02
2. Whatever LineageOS changed since Jan 5 patches. About 12,500 files had to be recompiled.
Jan 8, 2023 release notes
1. Jan 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2023-01
2. Whatever LineageOS changed since Dec 5 patches. About 4,400 files had to be recompiled.
Dec 9, 2022 release notes
1. Dec 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2022-12
2. Whatever LineageOS changed since Nov 5 patches. About 4,700 files had to be recompiled.
Nov 11, 2022 release notes
1. Nov 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2022-11
2. Whatever LineageOS changed since Oct 5 patches. About 5,400 files had to be recompiled.
Oct 7, 2022 release notes
1. Oct 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2022-10
2. Whatever LineageOS changed since Sept 5 patches. About 4,500 files had to be recompiled.
Sept 12, 2022 release notes
1. Sept 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2022-09
2. Switched to different timekeep repo that works with Android 12 and up.
3. Whatever LineageOS changed since Aug 5 patches. About 4,700 files had to be recompiled.
Aug 10, 2022 release notes
1. Aug 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2022-08
2. Initial ALPHA release to public.
Reserved.
Wanted to report no issues with this recent version via in-place upgrade from last month's v19.1 alpha test build.
For anyone still running v17 or v18 wondering if it's worth upgrading, it depends on your use case.
Here's mine if it helps:
I use this SM-T550 tablet on a semi-regular basis for web browsing, reading e-books, and watching video content.
Using v3.6.2_90 TRWP with a microSD card and some Bluetooth headphones.
No gapps, Bromite Chromium browser, NewPipe, and all other apps downloaded via anonymous session using Aurora Store (which also works great with tracking updates).
Apps: Bitwarden (still slow, but faster than when on v18), Netguard, Netflix (no DRM issues), Nova Launcher, Plex, United Airlines app (need the Bromite browser installed for DRM content to play), and Amazon Kindle.
Works great.
bierma32 said:
Works great.
Click to expand...
Click to collapse
can you give more info please. is good for the daily use? thanks
I used now more than 4 weeks and all what I have tested works perfect.
It is my daily driver.
Bluetooth works , WiFi connection is much stable if you have an worse signal.
Battery consumption I much better than Los 18.1
I have the smt550. Do you have a guide to root it and install this rom? Where can i find it? Thanks
vuoshinotizy said:
can you give more info please. is good for the daily use? thanks
Click to expand...
Click to collapse
Everything seems to work (except RIL as mine is an LTE device). Just bear in mind that SELinux is disabled, so you might not want to use the tablet to store sensitive data.
vuoshinotizy said:
I have the smt550. Do you have a guide to root it and install this rom? Where can i find it? Thanks
Click to expand...
Click to collapse
A general guide to install a custom OS for a Samsung device can be found on the LineageOS website. Here's an example for a different Samsung device https://wiki.lineageos.org/devices/beyond1lte/install
The main differences are you'll need to refer to the original post Q5 to obtain a custom recovery (TWRP) and Q26 to obtain the LineageOS build.
New build lineage-19.1-20220912-UNOFFICIAL-gt510wifi.zip
NOTE: All builds that I upload have been personally tested on my device to boot and function as described in post #1. Having said that, there's still a chance it won't work on your device due to human error, your configuration, your apps, etc. If it won't boot, always start with a complete wipe of everything and format your data in TWRP. This is known has a clean install. Backup your data before a clean install.
19.1 has been my daily driver since March 2022.
Sept 12, 2022 release notes
1. Sept 5 security patches as per https://review.lineageos.org/q/topic:S_asb_2022-09
2. Switched to different timekeep repo that works with Android 12 and up.
3. Whatever LineageOS changed since Aug 5 patches. About 4,700 files had to be recompiled.
retiredtab said:
New build lineage-19.1-20220912-UNOFFICIAL-gt510wifi.zip
Click to expand...
Click to collapse
No issues with in place upgrade. Still works great!
vuoshinotizy said:
I have the smt550. Do you have a guide to root it and install this rom? Where can i find it? Thanks
Click to expand...
Click to collapse
Just sent you PM with the steps I used to get it on mine.
retiredtab said:
PLEASE BEFORE YOU decide to try this rom, you MUST read all of post 1, 2, 3 and 4 (about 10 minute read). If you think this is an unreasonable request, then stop reading now and find another rom. Thank you.
I am not responsible for lost data, identity theft, lost money, security vulnerabilities, bricked devices or any other hardware or software malfunctions that comes as a result of flashing this rom.
BACKUP YOUR DATA AND OLD rom BEFORE trying my rom.
If you are NOT an expert in using fastboot, adb, odin, heimdall, twrp, DO NOT use this rom. You must know how to use these tools to revert back to your old rom.
If you are new to flashing custom roms, do NOT attempt this.
If you need your tablet for work and something important, do NOT flash this rom. This rom could result in a bricked device or boot loop or non booting device or you not being able to revert back to your old rom.
What works
1. bluetooth
2. wifi
3. brightness
4. external audio
5. GPS
6. audio through headphone jack
7. audio over bluetooth
8. camera
What doesn't work
1. selinux is permissive. I have tried to make this build enforcing for weeks, but when I do, the OS doesn't boot and there is no adb logcat output despite making an "eng" build. Without adb logcat output, it's virtually impossible to determine what is wrong and I'm not spending anymore time on it. If having enforcing mode is important to you, use my 18.1 builds.
2. keyboard bug workaround. When prompted to enter something like a Bluetooth pin or text based password, sometimes the keyboard is not shown on the screen or off screen. The workaround is to goto settings, system, languages & input, on-screen keyboard, Android Keyboard (AOSP), appearance & layout, theme and choose "Material - follow system settings".
This keyboard bug is a LineageOS bug as per
https://review.lineageos.org/c/LineageOS/android_packages_inputmethods_LatinIME/+/325438
3. gapps. Some of you require gapps for whatever reason. I use Aurora Store for my purposes and thus have NO KNOWLEDGE of the current state of gapps.
There are various gapps projects (at least 5 in 2022). Each has pros and cons. It's your job to do the research and find a suitable gapps project. I suggest you allocate at least a couple of hours doing your own research. My rom works by itself fine without gapps. DO NOT talk about gapps in this thread. As a courtesy to gapps users, if you want to talk about gapps, I have opened a new thread at
https://forum.xda-developers.com/t/...m-t35x-sm-t550-sm-t560nu-and-sm-p550.4479285/
so you may discuss gapps wrt to the msm8916 platform. I will NOT be participating in that thread as I do NOT use gapps.
Thanks
1. LineageOS team for source code.
2. Kyle Harrison
- looking through the adb logcat and suggesting that my binder code was too old to work with Android 12's keystore2 code
- for the graphics and legacy camera patches to allow msm8916 to work with Android 12
- for his Motorola LineageOS 19.1 device trees so I could use his patches as a template for msm8916
3. @tarkzim
- adding back audio hal 2.0 and legacy camera hal 1.0 into the LineageOS trees
- helping me think through the msm8916 random reboots which was due to the TCP/IP patches
- maintaing and updating his repos so I can study them for learning purposes
4. pre ALPHA testers @breversa , @XDA_username00 for willing to test pre ALPHA builds and leaving feedback.
Click to expand...
Click to collapse
Hi, Installed 19.1 recovery, did factory reset, formatted system and installed 19.1 version. No error messages. Unfortunately it keeps booting into recovery only. What did I do wrong?
Zomer123 said:
Hi, Installed 19.1 recovery, did factory reset, formatted system and installed 19.1 version. No error messages. Unfortunately it keeps booting into recovery only. What did I do wrong?
Click to expand...
Click to collapse
At first you have to tell us from which ROM or OS ( Stock ) you are comming.
Which Recovery you have installed ? TWRP or Lineage Recovery.
Have flashed only LOS 19.1 or LOS + Gapps ( which Version ) or have you flashed LOS + Gapps and Magisk ?
Try it again , factory reset and wipe cache , Data ( int. Sdcard ) System.
Flash Los and reboot system.
Is this OK . next step factory reset, flash Los and Gapps
Reboot system and so on.
bierma32 said:
At first you have to tell us from which ROM or OS ( Stock ) you are comming.
Which Recovery you have installed ? TWRP or Lineage Recovery.
Have flashed only LOS 19.1 or LOS + Gapps ( which Version ) or have you flashed LOS + Gapps and Magisk ?
Try it again , factory reset and wipe cache , Data ( int. Sdcard ) System.
Flash Los and reboot system.
Is this OK . next step factory reset, flash Los and Gapps
Reboot system and so on.
Click to expand...
Click to collapse
Coming from los 18.1 (aug 2022)... Installed los 19.1 recovery. Then factory reset etc. Then installed los 19.1 (sept). No gapps, no magisk...
Zomer123 said:
Coming from los 18.1 (aug 2022)... Installed los 19.1 recovery. Then factory reset etc. Then installed los 19.1 (sept). No gapps, no magisk...
Click to expand...
Click to collapse
Is there a reason for going with the LOS recovery image instead of TWRP? TWRP has worked great for me since v17 and haven't had a need for recovery with the SD Card, but then you might have a particular use case.
Remember you'll need to wipe the dalvik/data/internal storage/cache/system partitions first, then format data before installing the OS.
Hope any of that helps.
XDA_username00 said:
Is there a reason for going with the LOS recovery image instead of TWRP? TWRP has worked great for me since v17 and haven't had a need for recovery with the SD Card, but then you might have a particular use case.
Remember you'll need to wipe the dalvik/data/internal storage/cache/system partitions first, then format data before installing the OS.
Hope any of that helps.
Click to expand...
Click to collapse
I already solved it by flashing twrp using Odin.
Zomer123 said:
I already solved it by flashing twrp using Odin.
Click to expand...
Click to collapse
What was the reason that you have flashed the Lineage Recovery, since TWRP worked before ?
bierma32 said:
What was the reason that you have flashed the Lineage Recovery, since TWRP worked before ?
Click to expand...
Click to collapse
Idk, thought that it would be necessary to flash the 19.1 rom... But I also got back to 18.1 version since 19.1 is more laggy and has ugly QS tiles.
PLEASE BEFORE YOU decide to try this rom, you MUST read all of post 1, 2, 3 and 4 (about 10 minute read). If you think this is an unreasonable request, then stop reading now and find another rom. Thank you.
NOTE: There is no S-pen support. If you need S-pen, DO NOT USE THIS ROM.
I am not responsible for lost data, identity theft, lost money, security vulnerabilities, bricked devices or any other hardware or software malfunctions that comes as a result of flashing this rom.
BACKUP YOUR DATA AND OLD rom BEFORE trying my rom.
If you are NOT an expert in using fastboot, adb, odin, heimdall, twrp, DO NOT use this rom. You must know how to use these tools to revert back to your old rom. If you are new to flashing custom roms, do NOT attempt this. If you need your tablet for work and something important, do NOT flash this rom. This rom could result in a bricked device or boot loop or non booting device or you not being able to revert back to your old rom.
What works
1. bluetooth
2. wifi
3. brightness
4. external audio
5. GPS
6. audio through headphone jack
7. audio over bluetooth
8. camera (selfie photo preview doesn't work), a bit slow to switch from front to back camera and vice versa
9. selinux enforcing
10. DRM level 3
11. deep sleep
What doesn't work/What isn't tested
1. gapps. Some of you require gapps for whatever reason. I use Aurora Store for my purposes and thus have NO KNOWLEDGE of the current state of gapps.
There are various gapps projects (at least 5 in 2022). Each has pros and cons. It's your job to do the research and find a suitable gapps project. I suggest you allocate at least a couple of hours/days doing your own research. My rom works by itself fine without gapps. DO NOT talk about gapps in this thread.
2. full disk encryption has been deprecated in Android 13 (LineageOS 20).
3. S-pen doesn't work and I have no plans to even try to make it work.
Source Code
The build instructions, source code and manifest are listed in post #2 FAQ #1. The kernel source code is at
https://github.com/retiredtab/android_kernel_samsung_msm8916/tree/lineage-20.0
Thanks
1. LineageOS team for source code.
2. LineageOS-UL team for merging, maintaining the legacy patches needed for old devices into one common repository so everyone can benefit.
https://github.com/orgs/LineageOS-UL/people
3. @lpedia for helping test a msm8916 tablet device.
FAQ - I spent hundreds of hours building this rom. If you think it's unreasonable to read this FAQ, then don't use this rom. Thank you.
Q1. Where are the source and kernel source files?
A1. The kernel source files are at
https://github.com/retiredtab/android_kernel_samsung_msm8916/tree/lineage-20.0
The device tree files are at
https://github.com/retiredtab/android_device_samsung_msm8916-common/tree/lineage-20.0
https://github.com/retiredtab/android_device_samsung_gt5note10wifi/tree/lineage-20.0
https://github.com/retiredtab/device_samsung_gte-common/tree/lineage-20
The vendor tree files are at
https://github.com/retiredtab/vendor-samsung-gt5note10wifi/tree/lineage-19.1
https://github.com/retiredtab/vendor_samsung_msm8916-common/tree/lineage-20
The manifest.xml (or roomservice.xml) and build instructions for 20 are at
https://github.com/retiredtab/LineageOS-build-manifests/tree/main/20/msm8916
Q2. Is this ALPHA rom suitable as a daily driver?
A2. It can be depending on your requirements. I can't test every app so you try it yourself to see if it's suitable. I've been using this rom myself since mid Jan 2023 with no major issues. I suggest you do a clean install, see FAQ 11, and flash this 20 ROM BY ITSELF (no gapps, magisk, etc) and see if you like it.
Q3. What if my app, xyz, doesn't work?
A3. If your app doesn't work, then go back to your old rom.
Q4. Your rom is laggy and buggy.
A4. If you find the above, then go back to your old rom. There's only so much software can do on a 2015 budget level tablet. Remember a budget tablet will have the slower SoC/CPU and less DRAM than a top of the line model. Your tablet will also run slower when you use gapps. You can run a lot of software without using gapps. Research fdroid, newpipe, Aurora store etc.
Q5. What TWRP should I use?
A5. You MUST use TWRP 3.5.2_9. Get it from
https://sourceforge.net/projects/retiredtab/files/SM-P550/TWRP/
Q6. Why should I use this rom?
A6. If you don't like this rom, then don't use it.
Q7. Will you offer monthly updates with security patches?
A7. I will try to offer monthly security patches, but that all depends on if I continue to have high speed Internet in the future.
Q8. Can you help me? I'm a newbie. Can you provide step by step instructions?
A8. I don't have the time to help newbies, so please do your own research. There are lots of tutorials, videos, etc on how to flash roms. Newbie questions must be posted in the Questions and Answers forum, not here.
Q9. Can I report a bug with respect to the rom?
A9. Yes, but you need to supply the following information. If you don't, I won't look at it.
You must provide an adb logcat of the problem and tell me how to reproduce it. Note I will not be downloading any apps that require money or an userid/password. For example, if you have problems with Netflix, I cannot help you since I don't have a paid subscription. If you use some app that requires an userid/password, I cannot help you as I'm not willing to create another userid/password even if it's free.
To get a logcat, open up a terminal window.
Code:
# clear the logcat first
adb logcat -c
# start logcat trace
adb logcat > problem.txt
# reproduce problem
# wait until problem has occured, then stop trace by hitting ctrl-c
# attach the problem.txt ZIPPED as text files don't seem to get attached properly
Q10. Do I need to erase everything and format my data?
A10. Yes, you MUST erase all the partitions (system, data, dalvik/art cache, cache) using TWRP and MUST format your data before installing 19.1 when you are coming from stock or an earlier version of LineageOS or from another custom rom. If you get stuck at the boot animation for more than 5 minutes, it's likely because you didn't follow the instructions I just wrote. Dirty flashes from stock, other custom roms or older LineageOS versions are not supported and not likely to work.
Q11. What gapps should I use?
A11. I don't use gapps anymore. I use Aurora Store. As of Nov 6, 2021, I no longer make recommendations on which gapps to use as your mileage may vary.
Let me by crystal clear. YOU NEED TO DO YOUR OWN HOMEWORK selecting between the various gapps offered. There are 5: opengapps, nikgapps, mindthegapps, flamegapps and bitgapps. Each one will have it's own installation instructions. The only recommendation I will offer to use the SMALLEST version of gapps.
Don't be surprised that whatever gapps you use might have problems like "Just a sec", voice not working, updating google play store please wait, etc. These are NOT problems of the OS as the OS will run fine without gapps. These are gapps problems and you must ask in the gapps forum why it doesn't work.
Q12. I'm having problems with gapps, can you answer why it's not working?
A12. I WILL NOT answer any questions regarding gapps. This thread is about the rom, not gapps. Android does not depend on gapps in order to work.
Q13. Why isn't my post answered or ignored?
A13. Questions already answered in the FAQ will be completely ignored. Again, I do not use Windows OS or gapps.
Q14. What speed up/optimization tips do you suggest?
A14.
1. Turn off animations. Go into developer settings, scroll down to the drawing section, and set window, transition and animator scale all to "off".
2. If you don't have a google account, don't install gapps. Use Aurora Store to get your apps as you can get all the same apps from the play store using an anonymous login.
3. Dont' run more than 2 apps at the same time. You can probably listen to music in the background and use a web browser at the same time, but don't expect great performance from a 2015 entry level tablet.
4. Use a web browser like Brave that has built in adblock and privacy features.
5. Use newpipe to watch your streaming content. It has built in adblock so you don't have to watch forced ads.
6. Look for apps that are open source, ad free and lightweight.
7. Remove all unused quick setting "bubbles" from the quick pull down menu. I only need and have 6.
Q15. Does this rom support Magisk for root?
A15. I don't use Magisk myself so I don't know and Magisk is always being updated to fool Google's certification process. Others have reported Magisk as working, but I won't answer any questions regarding it.
Q16. Will this rom ever become official?
A16. Starting with 19.1, legacy devices like ours will NEVER be official due to lack of ebpf support. See https://lineageos.org/Changelog-26/
Also, I don't want the responsibilities that come with being an official maintainer.
Q17. What is the difference between this rom and others?
A17. This rom tries to be pure LineageOS with little to no modifications.
Q18. Will there be any major 20 code modifications in the future?
A18. I don't anticipate any major modifications. There may be some small bug fixes and minor code cleanup, but all the hard work in getting the rom up and running and fixing all the major bugs have been done completed. This doesn't mean the code is perfect or well organized, but I won't be doing any major changes now that 20 is working.
Q19. Why did you fork the device and vendor trees for 20?
A19. The msm8916 repos seem geared towards phones and sometimes do not work or cause boot animation loops for tablets so I decided to fork their repos. In other words, what's deemed as msm8916-common code isn't common to all devices.
In addition, since I'm building SM-T350, SM-T357W, SM-T550, SM-P550 and SM-T560NU (all use the same msm8916 code), it seems easier to maintain all of them if I can control my own code repos and not worry if my changes affects the phones or not.
I have completely decommonized and rearranged the 20 msm8916-common tree so it's easier for me to maintain and build.
Q20. Can you build a variant of this device? For example, a LTE or S-pen version.
A20. If I don't physically have the device, I cannot and will not build it unless I can boot and test it myself. Even then, there's no guarantee that I can get those variant features working.
Q21. Can I load this rom on a variant devivce like LTE or S-pen version?
A21. The rom is built for the device explicitly listed. If you are an advanced user and understand TWRP, adb, odin, heimdall, you can try loading it on a LTE or S-pen variant by modifying the updater-script, but it may cause a bricked device, bootloops or non functionality of LTE/S-pen. You have been informed and warned!
Q22. I don't like the taskbar, how do I turn it off?
A22. Choose settings, type task into the search bar. Choose enable taskbar and disable taskbar. This will leave the on screen nav bar. If you want to disable that, go to settings, system, gestures, system navigation, gesture navigation.
Q23. Okay, I understand the consequences and that this is ALPHA rom and willing to take the risks outlined, now where can I find the rom?
A23. You can download it from https://sourceforge.net/projects/retiredtab/files/SM-P550/20/
Release notes
NOTE: All builds that I upload have been personally tested on my device to boot and function as described in post #1. Having said that, there's still a chance it won't work on your device due to human error, your configuration, your apps, etc. If it won't boot, always start with a complete wipe of everything and format your data in TWRP. This is known has a clean install. Backup your data before a clean install.
June 23, 2023
1. Initial 20 ALPHA public release.
2. Incorporates June 5th security patches as per https://review.lineageos.org/q/topic:"T_asb_2023-06"
Reserved.