[ROM][STABLE][Signature Spoofing/MicroG support] LineageOS 18.1 for S7 Exynos

[Ivan_Meler]

LineageOS 18.1 for herolte​

/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/

Working:
- Wifi
- Sound
- mali drivers
- USB tethering
- HW Backed video Playback
- Ril (Mobile data,calls, sms and stuff)
- Sensors
- Buttons and their backlight
- Bluetooth
- Wifi HotSpot
- MTP
- 2D and 3D gpu acceleration
- HW encoding/decoding
- HWcomposer (HWC)
- Charging with device powered off
- Stuff I didn't test yet
- Camera
- GPS
- Fingerprint Sensor
- Mobicore
- SW codecs

Not Working
-



Take a note that a lot of LineageOS features have not been completed yet this is not a device bug and please do not report those
in this rom thread as you will be reported to moderator also do not post bug reports for known issues or bug reports without proper
a) Logcat
b) proc/last_kmsg (or proc/kmsg)
c) data/tombstones
d) dmesg

Also do not under any circumstances post bug reports if you are using substratum themes or unsupported magisk modules or you have performed any system modifications


Install gapps right after installing the rom itself dont try to boot to system before that if you want to use gapps
NikGapps and BiTgapps were both tested and working

Downloads:
Google Drive
Mega.nz
MD5: 544cced9aa79f80562b3859d0d56c372

I do this in my free time so bear that in mind when you notice I didn't fix known bug in next available build, Currently i work on this alone and i am not one of those kangers that just copy source and claim it as their own work,
if you want to support the project feel free to buy me some coffee paypal.me/ivanmeler



Feel free to join telegram group with early builds progress updates and some off topic stuff Join

Due to requests from some users I added signature spoofing support to the rom which allows usage of MicroG
you can simply install MinMicroG and grant it needed permissions for signature spoofing to make it work as intended

Based On Android 11/R
Changelog

05.05.2021.
- sepolicy: Allowed cbd (Modem daemon) service to read proc_net sysfs
- sepolicy: Allowed gpuservice acces to graphics_config_prop
- sepolicy: improved debugfs handling for mali and ion
- Fixed video recording in a lot of apps (Might require clean flash for some users)
- Updated blobs to N935FXXS8CUD1 (April 2021 security update)
- Fixed edge case where fast charging switch would be ignored because its chwoned too late
- Compiled NFC hal from source (Google released samsung nfc source
(https://android.googlesource.com/platform/hardware/samsung/nfc/), (Should improve stability)
- Upreved livedisplay implementation (to 2.1) with native flicker free support
- Added lifevibes blobs for audio effects and enhancements
- Merged May 2021 security update
- Synced with LOS source

07.04.2021.
- Fixed Vulkan
- Disabled WPA2 to WPA3 auto-upgrade (This caused issues on some wifi networks)
- Rebased AntiFlicker and livedisplay support
- Performance and stability improvements
- Synced April 2021 Security Update
- Synced with LOS source

22.03.2021.
- Added signature spoofing support for MicroG
- Cleaned up codebase
- Misc performance and satbility improvements
- Synced with LOSsource

04.03.2021.
- Fixed Mouse pointer icon when using an external mouse
- Improved swcodec handling
- Performance and stability improvements
- Merged March 2021. security update
- Synced with LOS source

18.02.2021.
- Fixed cover case display states being flipped
- Improved renderscript handling
- Further imrpoved selinux policies and fixed denials
- Fixed binder related vurnability in kernel
- disabled zcache compression which could caue kernel panics
- Misc performance and stability improvements
- Synced with LOS source

05.02.2021.
- Improved HWC handling
- Added always on display
- Fixed issue where some games would show swapped colors
- Rebased sepolicy
- Fixed hwc selinux denials that slowed down UI
- Added support for smart cover cases
- Imrpoved renderscript performance
- Imrpoved offline charging (New animation and it should recognize wireless charger while phone is off now)
- Misc performance and stability improvements (A lot of them, as always you can check github and lineageos gerrit)
- Merged February 2021. security update
- Synced with LineageOS source

24.01.2021.
- Fixed HWC
- Drastically improved performance and battery life
- Added back flicker free dimming and fast charging switch (Now as hiidl interfaces)
- Switched to samsungs DT2W driver used on AOD on stock (Battery life improvements)
- Added custom LiveDisplay modes
- Disabled some excess logging
- Cleaned up codebase

13.01.2021.
- Merged januart 2021 Security Updat
- Fixed issues with fingerprint in 3rd party secure apps (banking apps paypal password managers)
- Updated prebuilt binaries
- Cleaned up mixer paths
- Added neural network drivers
- Disabled p2p mac randomization
- Fixed wifi direct
- Removed unused 32bit drivers
- Improved performance and stability
- A lot more unmder the hood changes

22.12.2020.
- Merged december 2020 security update
- Fixed volume adjustment with audio
- Drastically improved audio quality
- Merged December pixel feature drop
- Fixed noise cancelling in call
- Misc performance and stability improvements

24.11.2020.
- Fixed in call audio (Volume changing in call is still somewhat broken)
- Merged November 2020 security update
- Imrpoved BT audio handling
- Selinux is back in Enforcing mode
- Fixed signal strenght indicator for all network modes (2g/3g/4g)
- Fixed soft buttons backlight handling
- Fixed fingerprint recognition in some apps (Non secure ones for now)
- Fixed glove mode
- Misc performance and stability improvements
- Synced with LOS source

06.10.2020.
- Improved brightness slider range
- Improved microphone input in some voip apps
- Synced with LOS source

05.10.2020.
- Initial release

XDA:DevDB Information
LineageOS 18.0 for S7, ROM for the Samsung Galaxy S7

Contributors
Ivan_Meler
Source Code: https://github.com/8890q/android_kernel_samsung_universal8890/tree/lineage-18.1

ROM OS Version: Android 11
ROM Kernel: Linux 3.18.x

Version Information
Status: Stable
Current Beta Version: 0.6.5
Beta Release Date: 2021-01-24

Created 2020-10-05
Last Updated 2021-01-24

 

[Ivan_Meler]

Keep in mind this is early build and many los features are not merged yet do not report those as bugs as they are not device specific and will be resolved
Also here are some screenshots

Also big thanks to everyone who supported this and other projects since lineageos 15.1 since i do this in my free time and donations help offset server cost and get me coffee

 

[Ivan_Meler]

reserved

 

[Pinguin2001]

Wow, you just keep this device alive. Cant wait to try this Rom(im currently downloading...) Will report in a few days how it is

 

[Wattsensi]

Holy moly, that was real quick. Thanks for this ROM! Do you think you could fix the microstuttering that sometimes appears on LOS 17.1? I see you have an EAS implementation in the works but only you know the real status of your tree.

Alternatively, could you provide a no-op performance profile so we can tweak the interactive governor through a kernel manager? When I change my governor settings for my custom ones microstuttering goes away until they reset to default after a while even if I enable apply on boot, and the default performance option is janky when doing anything more intensive than scrolling a webpage or through the system UI. Sometimes playing games is impossible because it runs smoothly but randomly jumps.

Again, thanks for your ROM. We are blessed to have a dev like you working on this old horse

 

[MostaphaHida]

So far ROM is awesome smooth and fast ,only problems for me at least:
1-brightness slider
2-calls problem can't hear or talk and can't record in such apps like WhatsApp
Thx for ur awesome works so much appreciated

 

[vagika]

Hi,

Did anybody try to dirtyflash from 17.1? I had no luck so far...
And again, big thank to Ivan, for the rom and keeping device alive!!!!!
thx

 

[sailorpito]

Hi,

Did anybody try to dirtyflash from 17.1? I had no luck so far...
And again, big thank to Ivan, for the rom and keeping device alive!!!!!
thx

I don't think it will be possible to dirty flash from 17.1, you can use oandbackup

---------- Post added at 07:26 PM ---------- Previous post was at 07:21 PM ----------

Many thanks Ivan, great work!

 

[Ivan_Meler]

New build is up here is a brief changelog
- Improved brightness slider range
- Improved microphone input in some voip apps
- Synced with LOS source

Big thanks to evryone who supported this project as their donations go towards build server cost and coffee

 

[TWEAKiMP]

Thank you for your time!
Where can I find the changelog for lineage os 18? What is new?

 

[Zuikkis]

Holy moly, that was real quick. Thanks for this ROM! Do you think you could fix the microstuttering that sometimes appears on LOS 17.1?

I don't know if you mean the same thing, but at least Pokemon Go "jerkiness" can be completely fixed by changing GPU powersave mode from "coarse demand" to "always on".. But you need some adjustable kernel like Morokernel to be able to do this, and Moro is not very good with recent LOS versions.

I don't know what the issue with "coarse demand* is.. it turns off GPU power after 100ms of idle. That certainly shouldn't happen during gameplay when there's constant movement on screen?

 

[Wattsensi]

I don't know if you mean the same thing, but at least Pokemon Go "jerkiness" can be completely fixed by changing GPU powersave mode from "coarse demand" to "always on".. But you need some adjustable kernel like Morokernel to be able to do this, and Moro is not very good with recent LOS versions.

I don't know what the issue with "coarse demand* is.. it turns off GPU power after 100ms of idle. That certainly shouldn't happen during gameplay when there's constant movement on screen?

Thanks for responding. Changing to always_on does help a little but it makes the phone MUCH hotter...or is it my idea?
The phone is hotter and it still stutters, I tried changing the I/O schedulers to less intensive noop and tweaking the interactive governor helps but then it resets itself back to stock settings no matter what I do. But no matter what, there is always at least a bit of microstuttering. It is ruining the experience on this otherwise perfect ROM.

Also the custom kernels are using a different kernel/binary blob base that doesn't work with this ROM family anymore. I personally don't want to delve in the headache of merging commits and fixing build failures, it means downloading yet another kernel for yet another SoC and my space is kinda limited right now because I already maintain a device.

 

[Zuikkis]

Hmm. I'm actually currently on FloydQ rom. It is very smooth with Moro and this "always on" mode. Battery use is very minimal, phone does not get hot.

FloydQ is using the older code base so Moro works. But earlier I was using some older LOS 17.1 beta with Morokernel and it was smooth. The later versions (with newer code base) stuttered..

Hmm.. perhaps there is some bug causing entire device to halt for over 100ms? Then coarse_demand mistakes this as idling and powers off the GPU, making things even worse.

 

[mertcaners12]

I can't see call screen when someone calls please fix this

 

[scrapjack]

I can't see call screen when someone calls please fix this

As it says on the main post, it's pointless to report a bug without including:
a) Logcat
b) proc/last_kmsg (or proc/kmsg)
c) data/tombstones
d) dmesg
as he can't possibly recreate every issue.

 

[Hamura]

Thank you !
I will test with NikGapps

 

[troyer1234]

please someone upload it on sourceforge ((((
i cant download from google drive

 

[Wattsensi]

Hmm. I'm actually currently on FloydQ rom. It is very smooth with Moro and this "always on" mode. Battery use is very minimal, phone does not get hot.

FloydQ is using the older code base so Moro works. But earlier I was using some older LOS 17.1 beta with Morokernel and it was smooth. The later versions (with newer code base) stuttered..

Hmm.. perhaps there is some bug causing entire device to halt for over 100ms? Then coarse_demand mistakes this as idling and powers off the GPU, making things even worse.

I am switching to another ROM and flashing echofix

 

[Zuikkis]

Does this ROM have all the bugs and instability older Lineage ROMs had, or it works as a daily driver? Apart from the fixable echo problem, do calls work well? I am considering switching ROMs to instal ThundeRStorms Kernel if I can't solve this issue from userspace. as a bonus I get EAS.

Well.. I'm probably the wrong person to answer, as I have never encountered the echo or volume problems on LOS either. And I use this as my work phone so I call quite a lot.

But still yeah, FloydQ feels very stable. I think it's mostly binaries moved from the S9+ rom, as it has all Samsung proprietaries working (like VoLTE calls).. I assume echo cancellation as well. And it passes SafetyNet out of the box, you don't necessarily need Magisk to run bank apps etc.

 

[Wattsensi]

Well.. I'm probably the wrong person to answer, as I have never encountered the echo or volume problems on LOS either. And I use this as my work phone so I call quite a lot.

But still yeah, FloydQ feels very stable. I think it's mostly binaries moved from the S9+ rom, as it has all Samsung proprietaries working (like VoLTE calls).. I assume echo cancellation as well. And it passes SafetyNet out of the box, you don't necessarily need Magisk to run bank apps etc.

Well, I flashed Resurrection Remix and indeed, the microstuttering is gone! Thanks for the recommendation.

EDIT: The culprit seems to be the N935KKKU4CTH1 rebase, running a ROM previous to their inclusion makes the problems disappear