What about security on custom ROMs? suggestions! - Galaxy Note Pro 12.2 Q&A, Help & Troubleshooting

Hi there,
Here is a p905! I have been a happy user of Valera's developed Lineage OS 14.1 then I dropped the tablet for a while and came back resurrecting it nowadays. There are many viable possibilities YetanotherMarshmellow, CrDroid 10.1, LineageOS and so on but... do you feel secure using custom ROMs while logging your personal account on common apps or accessing your master email? I mean, back to days I used to flash every security update but every time the entire unofficial LineageOS for Note Pro 12.2 version was changing I opted for a full wipe and a fresh start instead of a dirty flash (it was a bit of a hog of time because of setting up everything from scratch), especially because since the new version came out no security patches were released for the older one.
How do you feel about sticking to an older version of your custom ROM without up to date security patches?
Is there any ROMs for this hardware where you can easily update security patches without being forced to jump to a new version, so avoiding the probable loss of features (palm rejection, for example), new bugs and related?
I am looking for a custom ROM mainly to be back drawing on this beautiful screen and to take notes, but I'd like to feel at the same time enough secure of my data: feel free to suggest!
Thank you :fingers-crossed:

Related

[APP] [14-Feb-2011 @ 1.14] Universal ROM Updater (yeah, it's free!)

ROM modders/developers!
I'm the developer behind ROM Updater. It's meant to be an universal ROM updater (which means, it doesn't really care if you're on CyanogenMod or you're on the "whitelist"-free of ROM Manager). There is even a PHP script (on the website) which will automatically create incremental updates, cool feature of my app which lets both you and users save a lot of bandwidth. Please consider "adopting" it, it's free ^^
elegos said:
ROM modders/developers!
I'm the developer behind ROM Updater. It's meant to be an universal ROM updater (which means, it doesn't really care if you're on CyanogenMod or you're on the "whitelist"-free of ROM Manager). There is even a PHP script (on the website) which will automatically create incremental updates, cool feature of my app which lets both you and users save a lot of bandwidth. Please consider "adopting" it, it's free ^^
Click to expand...
Click to collapse
Nice work Elegos
Fantastic, consider me a supporter.
I think u have delivered it pretty well
Update: I've released incremental.jar and relative sources. Go to the website and check
New in version 1.8 (from version 1.7):
- Tried to fix a Null exception error, received via Market (thanks for reporting!) (please test)
- Added incremental.php and incremental.jar (plus sources) in the git repository to easily create incremental updates
- Moved common variables in a singleton (SharedData class) and more comments for easier understanding of the code and less variables around
PLEASE NOTE:
You don't have to mess up with the ROM name anymore, the program will check for the ro.build.display.id (MOD name) and ro.build.version.incremental (!!!INTEGER!!! version number), as well as ro.product.model (for future releases, in our case be sure is "Nexus One"). The repository main.json file has a new variable, "model" which is, indeed, the same of ro.product.model. Future versions of the app will make impossible to download updates not for your phone.
DEVELOPERS:
You have no excuses now ! I've talked with some other modders who say, for example, their updates are changing rather all the files, and I say you it's not true. Making some tests I saw that using incremental updates make the update 50~75% smaller, even with MIUI weekly releases. This means "bye bye" to the bandwidth problems, both for hosters and users.
Just added your page as my favorite. Will study and use it later, hehe ,need some time to know about it~~~~
So how do I set up repository for. CM7 nightlies? Do I have to enter it manually?
Sent from my Nexus One using XDA App
I'll give it a go. I have been using ROM Manager and it works very well but I was getting concerned with the bandwidth used for the CM7 nighties.
This does support CM7 nighties right?
Also, what about getting notifications when there is a new build for ClockworkMod Recovery and backup/restore options for ROMs that I keep on my phone?
Wow, as a themer, I would have to say that the idea behind this is amazing. I would love to see it adopted by everyone. I would like to be able to see what exactly has changed between updates, it would save me a lot of time personally. I commend you for your work on this. Woot
@apratomo: you need someone who sets up a CM7 nightly repo. I can't, as it would mean I should support every ROM out there, and my bandwidth is limited (I can host one ROM if you want, not 1000 ). By the way you should edit the build.prop file in order to edit the incremental value and make sure the ROM name is allways the same (display.id).
@pfran42: it supports any ROM you want, this is why I made it
It actually don't check for new recovery images, as it relies on external repositories only, I may create a different application for that though. As of backup/restore, it currently has an option to backup the current ROM wherever you want (see options). When I discover how to restore a nandroid backup via command line, I'll add that feature too.
This is a great idea, however adoption may be slow. Even though its an AWESOME idea, it may be a good idea for you host a popular ROM elegos to get the ball rolling. I'd hate to see this die...
Ok so I have to launch a poll. Problem is that:
1. In the generic Android Development forums (where this really thread should stay) is overcrowed with posts, most of them are just publicity for apps on the market.
2. I'd love to have the attention of all the android people to partecipate to the poll. Of course I MAY create a CM7 nightly repo, but it would mean daily work for me (and a lot of space on my host).
I'm working on a system that should keep a list of repositories automatically updated every time you download a ROM with the app (accepting to send anonymous data). It's ready in the git repository, I'm waiting to push it live 'cause I want to create an interface to grab that data too (a sort of list ordered by phone model).
I think that just for starting I'd love to host a Nexus One Gingerbread AOSP, just like MicroMod777's one (TBH I already have that repo online, but it's frozen at version 20 as MicroMod is focusing on CM 7 custom builds, which I dislike for its too many customizations (both CM itself and MicroMod's)). Alternatively an AOSP 2.3 with no apparent changes (i.e. maybe CM with standard launcher). Any idea?
Sometimes you just have to prove how good your ideas are, because people are lazy... good luck my friend.
Sounds interesting.
I'm going to release a "major" update: all the times a user downloads a ROM and accepted to send anonymous data, the repository, ROM name & version and phone model will be sent to a database, which will return back a list of repositories directly in the settings menu!
I've released version 1.9 and made a Enomther Nexus One repository. Enjoy!
Version 1.9.1
- Fixed an untranslated italian string
- Fixed the import of a repository URL via the repositories list (new line at end of repository)
- Made the application more solid when there are connectivity problems / no internet available (no crash anymore)
awesome work!!
have tagged the link shall go thru it...gr8 job elegos ..!! ..PeacE
Awesome ^-^

[ROM][UNOFFICIAL][7.1.2] LineageOS 14.1 for Elephone Trunk

This is a genuine 64bit LineageOS 14.1 ROM for the Elephone Trunk. It's the follow up to my previous CM13.1 ROM as discussed here:
https://forum.xda-developers.com/android/development/rom-cyanogenmod-13-0-elephone-trunk-t3394060
It can be used as a daily driver, all important features seem to be working, including:
Voice
Mobile Data
Audio
Bluetooth
Camera
WiFi
GPS
Please feel free to post any bug reports here.
XDA:DevDB Information
LineageOS 14.1 for Elephone Trunk, ROM for all devices (see above for details)
Contributors
ottmi
Source Code: https://github.com/ottmi/android_device_elephone_trunk
ROM OS Version: 7.x Nougat
ROM Kernel: Linux 3.10.x
Based On: LineageOS
Version Information
Status: Snapshot
Current Stable Version: 20180114
Stable Release Date: 2018-01-14
Created 2017-02-10
Last Updated 2018-01-14
Changelog
20180114
Upstream LineageOS changes, including December 2017 security patches
Fix camera recordings
20170811
Upstream LineageOS changes, including August 2017 security patches
Remove libwvm and use Crackling Widevine blobs instead
20170430
Upstream LineageOS changes
20170419
Update to latest LineageOS Upstream, including Android 7.1.2 merge & April Security Patches
Enable F2FS
Get rid of annoying selinux denials for setsched
Enable Pinner Service to pin key files in memory
20170409
Return to Crackling camera blobs to fix issues re-enable higher camera resolution
Disable backlight dimming in thermal-engine
Fix random reboots due to qcom subsystem crashes
20170314
Replace netmgrd by proper binary from ASUS Z00T
Pull camera blobs (mostly) from Google Seed
20170224
Fix crashes of the WCNSS subsystem
20170221
Fix GPS
20170220
Fix torchlight tile
Fix netmgrd crashes that caused mobile data to stop working
Remove ZRAM, LZ4, and Swap
Remove F2FS support
Replace Camera with Snap
Replace Browser with Gello
20170210
First beta
ottmi said:
20170210
First beta
Click to expand...
Click to collapse
@ottmi
Thanks for your work we were expecting. Installed the new rom L_OS 14.1 without difficulty using "TWRP-3.0.2-20161108-trunk.img" + open_gapps-arm64-7.1-pico-20170210.zip + SuperSU-v2.79-201612051815.zip. so far also works updating of installed apps after a thorough tour will let you know any bugs.
Thanks again and good work.
This afternoon I installed the new ROM.
@ottmi first thank you, a job well done. the first impression is really good, I believe that from this foundation will do a wonderful job.
bug:
- The flashlight does not work.
- Some animations are jerky.
Considerations:
The general flow is good, Wi-Fi reception OK
GPS OK
Camera improvements, noisy photos. The 8 megapixel resolution is not selectable.
Battery: I do not know, it takes time to understand.
Awesome first release! Was this a lot of work to get to this stage, @ottmi?
Looking forward to the next build with currently reported bugs addressed, which is when I'll jump into the testing.
Martin
@ottmi
after using for a couple of days the first version of the Rom L_OS 14.1 I consider still to be improved especially the battery life, the management of the status bar and especially the lack of advanced configurations. All this by referring to the Rom "RR-N-v5.8.0-20170115-peach" I have used for nearly a month without any problems and with several customization options although 32Bit. It would be interesting on your part to verify the basis of http://www.resurrectionremix.com/ development for our Trunk 64Bit. Thanks anyway for the wonderful work you are doing.
I'm sorry for my english.
Guys, you have to be more specific than that if you want me to fix problems: @Sampierdarena:
Which animations are jerky? Is this still the case after the 2nd reboot?
Was the 8MP selection available with CM13.1? I think this is a feature of the camera apk..
@josoft86:
What's wrong with the status bar?
Which advanced configuration options are you missing?
I know about the flashlight, this has been a problem already in CM13.1 and I never found a way to fix it properly.
Also there seem to be some issues with the 2nd SIM slot. I sometimes don't get a data connection with the 2nd SIM - the status shows LTE or HSDPA and connected but I don't get an IP address. This doesn't seem to be a problem with the 1st SIM card. Did anybody else witness this problem?
@ottmi
I try to be more precise:
The animations are jerky affect the output from applications. I partially solved with the trim.
The camera: using CameraFV5 you can choose 8 megapixels, I think you're right, the problem is the camera application stock.
The battery with this release has a shorter duration than 10%, I think it is normal with Android 7.1
Thanks again for your work.
@ottmi
perhaps you interpreted my little appropriate proposals, but I did not remotely affect your work but address it on what I thought was perhaps valid for your own product development. I enclose the examples on the configuration and status bar that I used with the Rom RR. Thanks for your work always appreciated and I hope that more and more continuous.
Guys, I'm about to donate my dead elephone trunk if anyone needs it.
it was in great condition but one day it just won't turn on anymore.
it showing charging process once connected to charger, but doesn't react on power button.
case and some other accessories such as spare new back cover can also be donated .
And thanks Ottmi and all other guys for this great rom that extending life of this device!
@ottmi
I do not know if you might be interested in helping you develop your wonderful work for our Trunk:
Reference: https://plus.google.com/communities/109352646351468373340
"Resurrection Remix (official)
ROM Release │ DEVS ONLY-DO NOT POST HERE
İmportant announcement & some good news
So a few days back we came to an important decision , and we went ahead and decided to merge Full OMS Support.
Yes many users will be happy , some will be upset but honestly it has been too long waiting for Lineage Theme Engine .
Anyhow the manifests will be updated soon and maintainers can push oms builds as official .
Thank you for being patient with us.
Now You can enjoy full OMS supported themes and themers can now officially support our ROM .
PS: users please wait for your maintainers to upload your builds
NO ETA.
If coming from a 5.8.0 build , please clean flash .You will run into issues with dirty flashes and help will not be provided in that scenario
Read before posting
https://plus.google.com/101154841950858558748/posts/RAuHneppoKa
Thank you for understanding
Happy flashing..
Sincerely
RR Team"
Sampierdarena said:
@ottmi
I try to be more precise:
The animations are jerky affect the output from applications. I partially solved with the trim.
The camera: using CameraFV5 you can choose 8 megapixels, I think you're right, the problem is the camera application stock.
The battery with this release has a shorter duration than 10%, I think it is normal with Android 7.1
Click to expand...
Click to collapse
Can you name an application that shows the video problems?
Regarding the camera: the next ROM will ship with the new Snap app as stock camera that allows for setting the resolution to 7.7MP. I'm not sure thought whether that is native or will be interpolated from 13MP..
I can't really comment on battery life as I'm currently using the phone more intensive than usual and connect it to the computer very often, so the battery will recharge quite often..
@ josoft86:
Since the Ark RR ROM seems to be working fine for you, why don't you just this? I personally have no interest in porting another ROM. I don't even use half the features LineageOS offers on top of stock Android. My focus is on creating a stable ROM and being able to regularly pull upstream security fixes. That being said, all my work is published on my Github account, so anybody who's interested can pick it up and use it as a stepping stone for any other ROM.
New ROM 20170220
There's a new ROM available in the download section. Main improvements are fixing of the disappearing torchlight tile (thanks to the good people working on the Redmi2) and fixing of non-operational mobile data after disconnecting from WiFi. Also, I removed support for ZRAM, LZ4, swap, and F2FS. I don't think we need this (other msm8916 devices are living without it) and removing this brings the kernel closer to the stock kernel and hence improve long-term maintainability. I'm using this now as a daily driver and from my point of view it's quite stable.
EDIT: I messed up the GPS blobs in yesterday's release. There's a new ROM now in the download section that should have workiong GPS. Sorry for the inconvenience..
For those who are interested in details and for documentation purposes: on some msm8916 devices on Android 7, mobile data stops working after disconnecting from WiFi. There a few bug reports on LineageOS's jira on this:
https://jira.lineageos.org/projects/BUGBASH/issues/BUGBASH-72
https://jira.lineageos.org/browse/BUGBASH-129
It seems that netmgrd occasionally crashes and leaves the RIL in an undefined state that doesn't allow for new mobile data connections to be established. The crashes are due to netmgrd freeing non-allocated memory (which jemalloc intercepts and causes the process to abort). As netmgrd is a proprietary Qualcom binary, there is no way to fix this in source. I've tried to use the netmgrd binary from other devices but that didn't help. So I ended up patching the binary and replacing the respective calls to the free function by NOPs. Obviously, this introduced a memory leak and we will have to watch this carefully over time. But at least for now this seems to fix the problem and the memory leak seems to be small.
ottmi said:
It seems that netmgrd occasionally crashes and leaves the RIL in an undefined state that doesn't allow for new mobile data connections to be established. The crashes are due to netmgrd freeing non-allocated memory (which jemalloc intercepts and causes the process to abort). As netmgrd is a proprietary Qualcom binary, there is no way to fix this in source. I've tried to use the netmgrd binary from other devices but that didn't help. So I ended up patching the binary and replacing the respective calls to the free function by NOPs. Obviously, this introduced a memory leak and we will have to watch this carefully over time. But at least for now this seems to fix the problem and the memory leak seems to be small.
Click to expand...
Click to collapse
Maybe it's a silly question, but where is that netmgrd binary from? Would it be possible to use the netmgrd binary from the 32 bits version of Nougat for the google seed?
Meanwhile, my attempts with [email protected] are failing: wifi and ril cannot even start. I will try some change looking at your tree
Sorry for not having tried your rom yet, but I am spoiled with your great CM13
siljaer said:
Maybe it's a silly question, but where is that netmgrd binary from? Would it be possible to use the netmgrd binary from the 32 bits version of Nougat for the google seed?
Click to expand...
Click to collapse
It's the 64bit binary from Crackling. I thought about trying the 32bit netmgrd from Seed, but it has quite a few dependencies in terms of libraries. I would probably have to replace the libraries as well which would mean that the version numbers of the 32bit and 64bit libraries would be different. I'm not sure whether that would contribute towards a more stable ROM
Anyway, the patched version seems to work fine for now. I didn't notice any growth in memory consumption of the netmgrd process, so the leakage is probably small..
New ROM 20170224
There was a problem in the previous ROM with occassional WCNSS subsystem (WiFi) crashes which also caused the BlueTooth stack to crash. Should be fixed now in the new build.
Hi ottmi,
gorgeous work! I just got this device, therefore i did not do excessive testing yet. In comparison to cm-13.0-20160902, the 14.1-20170221 seems to work better (e.g. camera is not crashing). I do have only one question: At least on my device, root can be only set to 'ADB' or 'disabled'. Is this a restriction of LineageOS?
Best Regards,
Jan
jan_100 said:
Hi ottmi,
gorgeous work! I just got this device, therefore i did not do excessive testing yet. In comparison to cm-13.0-20160902, the 14.1-20170221 seems to work better (e.g. camera is not crashing). I do have only one question: At least on my device, root can be only set to 'ADB' or 'disabled'. Is this a restriction of LineageOS?
Best Regards,
Jan
Click to expand...
Click to collapse
LineageOS requires rooting. It can be done in several ways, I chose to use the addon provided by them in the "extras" download section on the LineageOS website.
---------- Post added at 10:56 ---------- Previous post was at 10:50 ----------
ottmi said:
It's the 64bit binary from Crackling. I thought about trying the 32bit netmgrd from Seed, but it has quite a few dependencies in terms of libraries. I would probably have to replace the libraries as well which would mean that the version numbers of the 32bit and 64bit libraries would be different. I'm not sure whether that would contribute towards a more stable ROM
Anyway, the patched version seems to work fine for now. I didn't notice any growth in memory consumption of the netmgrd process, so the leakage is probably small..
Click to expand...
Click to collapse
I've read that Lenovo is planning to officially release Nougat for msm8916 G4... I hope they can provide updated BSP too...
Meanwhile, I switched to your new ROM. It's been a short time, but it looks even better than CM13
Thanks for your great work!
@siljaer
Thank you very much! I was not aware of that.
karabassssss said:
Guys, I'm about to donate my dead elephone trunk if anyone needs it.
it was in great condition but one day it just won't turn on anymore.
it showing charging process once connected to charger, but doesn't react on power button.
case and some other accessories such as spare new back cover can also be donated .
And thanks Ottmi and all other guys for this great rom that extending life of this device!
Click to expand...
Click to collapse
Hi karabassssss, I will appreciate so much if you could donate me your Trunk.
I need a new case and, more, I've broken it and the camera glass too but I don't reach to contact any assistance to do this work.
I live in Italy, close to Florence and logically I will pay for the shipping of the package. Please let me know, thanks
PS Many many thanks to @ottmi for your previous CM13 rom, in a couple days I will flash your new one too

Lack of Samsung security updates

Hi All
I created a custom rom for SM-T705, (fenris) its a very security aware project.
Unfortunately ALL the AOSP/Lineage offerings have no working fingerprint, bugs, or both so I was stuck with a TouchWiz base.
Now having worked it into something different and special I have come to the issue of security updates.
As research goes it seems Samsung only push monthly/quarterly updates to some selected devices, NOT MINE
https://security.samsungmobile.com/etc/qsmr_list.html
Any ideas on a way to proceed?
Obviously the entire rom is effectively proprietary, with much effort needed to decompile to source.
What I would like is to match Google's security patch level
I am doing a BlueBorne patch myself by decompiling the Bluetooth stack, but that's just 5 vunrabilities out of 40 odd just in September !

ROM and kernel flashing guide for beginners

XDA Kernel and ROM flashing beginners guide.
If you are reading this, you’ve found your way to the famous XDA Forums. The place where developers and users contribute to the spirit of open source Android development.
If you already have TWRP setup and running and just look for the next ROM to flash, this guide isn’t for you. If you wonder what this TWRP thingy is or what exactly the three letters, R O M mean, that float around these forums all the time, then read on.
This paragraph is about the basic geek terminology, used by developers. ROM stands for read only memory, which basically is the system partition of your device, which can only be read, not written. In everyday usage scenarios, where you browse the web, download some apps, or chat und Telegram, you will never get in the situation, where you have to write on your /system partition. If you plan to get your hands on one of those amazing custom ROMs, that add battery life, performance and beauty of use to your OS experience, the ROM is the smartest way of accomplishing this goal.
What a custom recovery is used for:
This is where the recovery comes into play. The recovery partition is pre installed by the manufacturer of your device. It is used for OEM software updates, wiping your cache and dalvic or performing a factory reset. Enough functionality for the average Joe, but this is XDA developers. Things get interesting, once you unlock the full potential of your device. To do so, you’ll need a custom recovery. Team Win Recovery Project (TWRP) is most common these days. It is fully optimized for touch screen input and offers various features, that even come in handy, if you don’t want to modify your phones software. Nandroids for example.
This is where things start to become really interesting. There are various recognized XDA Developers like Francisco Franco or Flar2 who focus their efforts on bringing custom Kernels to their supported devices. What is a kernel? Do I even need it and why should I bother changing it?
To say this clearly, the kernel is the heart of your software. You might use your phone with a broken Bluetooth driver, without caring to much, without a kernel installed your device won’t be able to boot. So what does the kernel do, if it is so essential for a proper working phone? We can describe it as the bridge between hardware and software. That latest processor and the wickedly fast RAM won’t do anything without something telling it how to unleash it ‘s potential.
That’s where the kernel comes into play. You can imagine the kernel as a moderator between the hardware and the software of your system. An example: You touch the screen to launch your favorite game on your Droid. This game is really challenging your hardware, so the processor has to run on a high clock frequency, otherwise the game would take ages to load. The kernel detects your input and ramps up the frequency by it’s in input boost driver. This is often a pre configured value, that is used as soon as some (touch) input is detected, that’s why it is often called touchboost. OEMs choose a middle frequency offering a good balance between power consumption and performance.
For our gaming scenario this isn’t enough, we need the full potential of the CPU and the GPU should get busy rendering all those pixels as soon as possible. This task is accomplished by the kernel. It is balancing the system frequency based on the load of the system, but that’s just an easy to explain example of what a kernel does. The kernel is doing a lot more things on your device. How should the phone know, how much RAM it can give to that messaging application you open every each five minutes? Simple answer, it doesn’t the hardware of your phone is just silicon ready to do your work. You can compare it to a young guy doing an internship at a company. The guy has some potential, but he gets lost in a moment, if there is nobody showing him what to do. This is where the kernel comes into play again. It calculates which task requires which amount of memory and decides, which task should be kicked out of your recent access and memory and, which is there to stay. The messaging application I just mentioned a few lines back for example should remain in memory. You use it all the time, so it doesn’t make any sense to generate some unnecessary CPU load, which eats up your battery in the long run.
As you can see the kernel is more than a boring piece of code. It basically drives your phone, so you really want a stable kernel.
Which different kernel development approaches exist?
There are various recognized developers who focus on UX features. This means they take the official stock kernel (be it a OEM or let’s say the one made by Lineage) and they add their features on top. For example a fading notification LED or a backlight dimmer, that allows to lower the minimum screen brightness further than the stock kernel allows.
These features focus on adding userspace features on top, which don’t touch the core functionality of the kernel, like CPU scaling or RAM management. These kernels are chosen by users who want additional kernel functionality without leaving the stability of the stock ROM in favor of a custom ROM.
On the other hand their are developers and users who want bleeding edge functionality, which brings new stuff to the table, but is to new and not deemed stable enough to be used in the mainline OEM kernel. A good example for such a feature is f2fs support. F2fs is a file system developed by Samsung. It’s main focus is to suite flash storage (like the SD cards in our smartphones), in terms of write speeds it is significantly faster, than the established and rock stable standard ext4. But it comes with certain downsides for example a ROM won’t boot with a data partition formatted to f2fs if the kernel doesn’t have the required f2fs commits. A year back their also were some major issues with root, which made a lot of users switch back to the stable ext4. However if you want to squeeze the last bit of performance out of your phone, the kernel is the way to go.
Kernel tweaking: A custom kernel allows you to modify certain parameters, which aren’t accessible for the using an official kernel. Some developers ship with their own app, which is optimized to tweak their own kernel. This ensures maximum compatibility, one of the reasons why those kernels are so successful across all XDA sub forums. You don’t have to use a kernel managing app to modify your kernel configuration, you could also use an init.d script, but this requires further knowledge. No matter how advanced your knowledge is, it doesn’t get any easier than using an application to set up the configuration of your choice.
Kernel tweaking fills another guide and their is already a really good one, that you should check it out. Further links will be put at the end of this guide.
To root or not to root?
Another controversial topic is rooting. While a lot of OEMs try to prevent you from doing so by locking the bootloader, a lot of enthusiast swear on the power root access unleashes. Often android root is compared to administrator privileges under Windows. This is an illustrative explanation, but isn’t accurate. Root goes far beyond what Windows Admin rights allow. The main difference that jumps right into your eye: Microsoft allows Administrator access out of the box. Root is blocked by all OEMs, you have to enable it manually (by flashing a root solution of your choice. More about popular root solutions and their main advantages and disadvantages down below.
So what does root do? It gives you full control over your device. One of the main advantages is to gain write access to your system partition, which normally is read only. The power of root is defined by the knowledge of the user, the more you know, the more you can make out of it. For beginnners root apps like Titanium Backup, Adaway, Better Battery Stats or SD Maid are interesting. They utilize the potential of root for you without having to dig to deep into the topic. However root isn’t enabled by default for a reason. Most big custom ROMs, don’t ship with root out of the box anymore these days. Back in the day root basically just gave you more control, without any major disadvantages. This however changed with the introduction of Safety net by Google.
The company developing the OS we all love, is trying to make Android safer and they are pushing this approach forward these days. If you just flash SuperSu, Safetynet gets triggered which results in being unable to use apps which use Safetynet to verify the integrity of your system. Mainly banking apps, but also Snapchat for example or that stupid game, that generated all the hype in summer 2016. You got curious about root or came to this forum, to figure out how to root your phone? Then the next paragraph deserves your attention.
Most XDA users used SuperSU developed by XDA legend Chainfire during the last years. A while ago Magisk by XDA Recognized Developer and contributor Topjonwu. It became very popular, when Safetynet started to break certain Apps. It allows to hide root from safetynet, but it includes much more. One of the key features is mounting modules systemlessly to your boot partition, that way your /system stays untouched and removing a certain module, doesn’t require more than disabling it and rebooting. What about the disadvantages of magisk? It isn’t as compatible as SuperSU, since that root solution was the standard for years. All the developer arranged their work around SuperSU, but most famous root apps, have already adopted to Magisk, so you won’t run into issues unless you are using really outdated apps, which is never a good idea.
Which one to choose is a decision you can make. Both work flawless and it really comes down to personal preference.
Since nobody is willing to read through 50 pages, I’ll just thank you for your attention. This Guide is on going WIP, so if there is anything you’d like to see being added, feel free to let me know, but make sure to tag me, otherwise I might miss your message in the storm of ongoing notifications. Have a great day and keep flashing.

LineageOS 19.1 for s5neolte (SM-G903F, SM-G903W, and SM-G903M)

This is LineageOS 19.1, which is based on Android 12L, for the Samsung Galaxy S5 Neo, codenamed s5neolte, with models SM-G903F, SM-G903W, and SM-G903M.
LineageOS doesn't need much of an introduction - It's a well-known custom firmware/Android distribution.
I've picked up with these builds from @Radplay, as the original maintainer who brought up 19.1 for the S5 Neo.
His builds made use of my sources. Very long ago, I was maintaining for my own personal use, did bringup for 19.1, and was planning to start releasing public builds myself. But then my S5 Neo's screen stopped working, so I couldn't continue, and a few bugs I wanted to look into and fix went unfixed. Now that I've got a new screen, I've fixed those bugs, and can now release my own public builds.
Note on LineageOS 19.1/Android 12 usability - For those needing Google apps: Do not use heavy Google apps packages, as otherwise, you WILL have severe performance issues. Instead, use the most minimal variant of your chosen package. For example, for OpenGapps (no longer maintained officially, with no Android 12L packages, so use @ipdev's latest unofficial build available here), that is the pico variant.
Also, make sure to use 32-bit ARM packages, not 64-bit ARM64 ones, since these devices unfortunately don't run 64-bit Android despite being 64-bit capable.
Build download
From 20230625 with security patch level 20230605: https://drive.google.com/file/d/1KAvGHhp61zUJMAbnaasxrWnSTM2nNqBD/
Recovery to use
Use my unofficial TWRP build:
Image: https://drive.google.com/file/d/1dIgSDgPUBqben7tvylwL7zyhT9HeOAJ3/
Tar for Odin for the AP slot: https://drive.google.com/file/d/1guVj-Ghcneu9SR3ff3clLp9170CfJbNT/
This build is built from newer sources than the official TWRP builds and has a kernel built from the same sources as these LineageOS builds, so using it instead of an official one is preferable.
The official 3.7.0 TWRP build apparently might not work, while this is a working 3.7.0 build.
Folder for builds
Along with the current build, it contains a text file with the SHA256 checksum for it, and a folder which will contain some previous builds: https://drive.google.com/drive/folders/1jvNM__De4VASNoYmf8xjDZEMVmYSlr-3
Changelogs
Build for 20230625 (this changelog picks up from @Radplay's last build):
Latest changes from LineageOS, including the 20230605 Android security updates.
Bluetooth calling has been fixed.
Linaro's new SLSI BSP (Board Support Package, containing sources for HWC and some other stuff) sources are now used - Much more up-to-date than the previously used sources, and there's possibly a small improvement in performance.
Fixed an issue where the speaker would be slightly quieter than expected, and there is possibly slightly distorted audio at full volume from the headphone jack while playing media.
RIL blobs updated from Samsung's T515XXU8CVL1 firmware - Fixes an issue where, after enabling airplane mode, "Service status" under "SIM status" in "About phone" in settings wouldn't report "Radio off", meaning the cellular modem might still have been active in some way.
Some miscellaneous cleanups have been done.
Some security patches have been applied to the kernel.
The Wireguard kernel module has been removed from the kernel as it causes kernel panics. The userspace Wireguard implementation remains usable.
Previous releases
None for now.
Known issues and workarounds/fixes (if any)
Issue 1 - No VoLTE support: VoLTE currently can't work on any Samsung devices due to Samsung's proprietary implementation in stock firmwares not working on AOSP.
Issue 2 - Possible low volume and echoing while calling on speakerphone: There may be low mic volume issues and echoing that can be heard by the person you're calling, both while using the speaker.
These issues are supposed to be fixed by some blobs called "Lifevibes". They were added in official LineageOS 18.1 sources, but I decided to get rid of them as they completely destroy audio quality. As a workaround, the earpiece or headphones should be used instead.
If anyone wants them, I could have a way to bring them back as a compromise without including them in my builds, please do ask if so.
Some additional info if anyone is interested:
The lifevibes blobs apply insanely heavy noise gating, to get around the noisiness of this phone's microphones, and also heavily downsamples recorded audio in some way. Both processes result in horrible sounding recorded audio - The downsampling makes it sound lower fidelity than AM radio, and the noise gating is excessive to the point of annoying audible artifacts, and it may also get rid of audio content that can still be made out but is just above the noise floor of the mics. That ruined a mission-critical recording for me. I'd rather just take the noisiness.
Something notable is that with Android 12, encrypted data can't be decrypted in TWRP recovery. That problem can only be fixed within TWRP, but with the fixes only being in Android 12L TWRP sources, which we can't build our TWRP builds from due to issues, it continues to exist.
To report further issues, get a log from logcat and dmesg. If you're unsure on how to get either, there's good documentation out there for how to do so.
Sources
A manifest containing all of the necessary repositories to make builds is in the repository here on branch lineage-19.1.
Thanks to:
The previous maintainers, Stricted and danwood76, for all of the previous work for these devices.
The Lineage team - for the Android distribution itself.
...and everyone else who has worked on anything that is in use, such as device tree changes.
Some extra stuff:
I've now fixed almost all of the remaining fixable issues that I know of after extensive testing, making my build almost bugless. But if anyone does come across issues besides those I've mentioned in my original post, do report them.
For anyone here who was following @Radplay's thread until the end, on the stuff about credit, while it did end up being given very prominently, I think it's worth mentioning that it wasn't such a big deal. I suppose I overreacted somewhat. Everything is fine at the end of the day.
I'm going to try releasing a new build around every month.
Enjoy.
Nice to see this version released, good job
Just installed over the "other" one
Rocking!
did a clean install, twrp and the rom, all seems to be working well.
Thank you!

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