[ROM] [R] [ONE UI 3.1] [G988U] [G986U] [G981U] - Samsung Galaxy [SNAPDRAGON] S20 / S20+ / S20 Ultra

This ROM is based on Android 11 One UI 3.1 for the Samsung Galaxy S20, S20 Plus or S20 Ultra 5G Snapdragon with modified firmware to allow for a safe update while retaining bit 1 to keep bootloader unlock. This ROM uses the AIO userdata image created by @jrkruse to automatically flash TWRP, Magisk and all of the fixes that we need for our rooted devices. Link to AIO thread here
Flash at your own risk! I am not responsible for any dead device, loss of data, etc.
Requirements:
Must have an unlocked bootloader
Modified odin to flash ROM
Instructions:
Back up any important data because this will wipe your internal storage
Download rom for your device from below and unzip ROM to PC
Connect phone to PC and load all 5 files into odin. *If using no wipe userdata, your lockscreen pin will be reset to swipe so you'll just have to set that again when you boot into system
Press start
When it's finished, phone will reboot and automatically boot to TWRP to format (wipe) data. Then phone will reboot to TWRP again to flash some files. When it is finished, the phone will reboot to system
After you finish setup wizard, open rom control, allow root access and open each tab to set default values
Downloads:
Krog_Roms_G981U1_DUJ7_V2.1
Krog_Roms_G986U(1)_DUJ7_V2.1
Krog_Roms_G988U(1)_DUJ7_V2.1
Odin3_v3.14.1_3B_PatcheD.zip
V2.1 Changelog:
Updated ROM to November 2021 security patch
Updated AIO to include latest TWRP and hardware off zip
V2 Changelog:
U1 firmware with September 2021 security patch
Call recording added
Caller ID and spam protection
Fixed Samsung Health
Modded theme store for unlimited trial time
Over 1k fonts
Added option in settings/advanced features to enable/disable apps that auto-start at boot
Status bar background color choices
3Minit battery in status bar
Show/hide stock battery in status bar
Show/hide stock battery info in quick settings panel
Battery bar in status bar
Adjust size of network speed in status bar
Advanced power menu with switches for all items except power off
Power menu background choices
Power menu text color choices
Removed reboot confirmations in power menu
Navigation bar background choices
Navigation bar gifs
Battery bar in navbar
3Minit battery option for navigation bar
Lockscreen display timeout options
Quick reply from secure lockscreen
Option to automatically expand single notifications in notification panel
Option to wake up display when USB is connected or disconnected
Ability to remove persistent notifications
Thanks to:
@afaneh92
@jrkruse
@klabit87
@stang5litre
Kernel source link

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Saved

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This looks awesome! Is it 3.1 based on android 11 or 10?

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Can you confirm if this ROM addresses the issue where the display dims when you are talking on the phone. It gets so dimmed I cannot even see where any button it is to get the screen back to bright. I end up pressing on the screen and many times I press a button inadvertently and sometimes it is the hang up key. The most dreadful feature of Samsung.

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yes_have_some said:
This looks awesome! Is it 3.1 based on android 11 or 10?
Click to expand...
Click to collapse
It is Android 11
mwyarm said:
Can you confirm if this ROM addresses the issue where the display dims when you are talking on the phone. It gets so dimmed I cannot even see where any button it is to get the screen back to bright. I end up pressing on the screen and many times I press a button inadvertently and sometimes it is the hang up key. The most dreadful feature of Samsung.
Click to expand...
Click to collapse
I haven't seen this issue. If it happens to you on full stock, it could be a hardware issue with your phone. Make sure you don't have anything covering the sensors that are up near the front camera on the screen.

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Krog18 said:
It is Android 11
I haven't seen this issue. If it happens to you on full stock, it could be a hardware issue with your phone. Make sure you don't have anything covering the sensors that are up near the front camera on the screen.
Click to expand...
Click to collapse
It is a common issue. I don't want to clutter the ROM Q&A but here is just one of many links (https://us.community.samsung.com/t5/Galaxy-S-Phones/Screen-dims-when-making-calls/td-p/319723/page/4). Apparently the right setting varies by phone type but I am using S20 Ultra+. I am simply looking for a ROM where I can override if the phone is active (either by touch, motion if not logged out, etc. the screen does not dim). Thanks

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This seems promising, will it work on SM-9880? since its both snapdragon?

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Krog18 said:
This ROM is based on Android 11 One UI 3.1 for the Samsung Galaxy S20 Ultra 5G Snapdragon with modified firmware to allow for a safe update while retaining bit 1 to keep bootloader unlock. This ROM uses the AIO userdata image created by @jrkruse to automatically flash TWRP, Magisk and all of the fixes that we need for our rooted devices. Link to AIO thread here
Flash at your own risk! I am not responsible for any dead device, loss of data, etc.
Requirements:
Must have an unlocked bootloader
Modified odin to flash ROM
Instructions:
Back up any important data because this will wipe your internal storage
Download and unzip ROM to PC
Connect phone to PC and load all 5 files into odin
Press start
When it's finished, phone will reboot and automatically boot to TWRP to format (wipe) data. Then phone will reboot to TWRP again to flash some files. When it is finished, the phone will reboot to system
After you finish setup wizard, open rom control, allow root access and open each tab to set default values
Downloads:
Krog_Roms_G988U1_DUH2_V2.7z
Odin3_v3.14.1_3B_PatcheD.zip
V2 Changelog:
U1 firmware with September 2021 security patch
Call recording added
Caller ID and spam protection
Fixed Samsung Health
Modded theme store for unlimited trial time
Over 1k fonts
Added option in settings/advanced features to enable/disable apps that auto-start at boot
Status bar background color choices
3Minit battery in status bar
Show/hide stock battery in status bar
Show/hide stock battery info in quick settings panel
Battery bar in status bar
Adjust size of network speed in status bar
Advanced power menu with switches for all items except power off
Power menu background choices
Power menu text color choices
Removed reboot confirmations in power menu
Navigation bar background choices
Navigation bar gifs
Battery bar in navbar
3Minit battery option for navigation bar
Lockscreen display timeout options
Quick reply from secure lockscreen
Option to automatically expand single notifications in notification panel
Option to wake up display when USB is connected or disconnected
Ability to remove persistent notifications
Thanks to:
@afaneh92
@jrkruse
@klabit87
@stang5litre
Kernel source link
Click to expand...
Click to collapse
can you make a rom for s20

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mimsiroll said:
This seems promising, will it work on SM-9880? since its both snapdragon?
Click to expand...
Click to collapse
No, it won't as it is. I'd have to build one specifically for the 0 variant. I'll see what I can do after I get the U variants taken care of.
ywhuangc said:
can you make a rom for s20
Click to expand...
Click to collapse
I can. I have one for G986U just about ready and I can build one for G981U next

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Krog18 said:
No, it won't as it is. I'd have to build one specifically for the 0 variant. I'll see what I can do after I get the U variants taken care of.
I can. I have one for G986U just about ready and I can build one for G981U next
Click to expand...
Click to collapse
thank you.

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is it possible to make a file for SM-G981V?

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Can g981n support

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great,thanks，ivery like this rom,wish update continue

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ROM works great.
I noticed scrolling screenshot is broken (it was on my stripped down build of DUH2 as well and I'm not sure what broke it)

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ChongoDroid said:
ROM works great.
I noticed scrolling screenshot is broken (it was on my stripped down build of DUH2 as well and I'm not sure what broke it)
Click to expand...
Click to collapse
It's working for me. Did you maybe debloat something you shouldn't have?

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Can I flash this rom on g9860?

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Krog18 said:
It's working for me. Did you maybe debloat something you shouldn't have?
Click to expand...
Click to collapse
yeah I think that might be it. it's weird because I had it on my regular install of duh2
basically the screen scrolls but if you click it again after one scroll it'll stop scrolling and it includes that bar at the bottom of the screen shot

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{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
so this is what happens when I scroll a few times, sometimes it's 1 or 2 times.

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ChongoDroid said:
yeah I think that might be it. it's weird because I had it on my regular install of duh2
basically the screen scrolls but if you click it again after one scroll it'll stop scrolling and it includes that bar at the bottom of the screen shot
Click to expand...
Click to collapse
Try uninstalling updates for screen capture app
Edit:
I was able to reproduce this. It seems that there might have been a bad update to the Samsung capture apk, but the version in the rom is good. You can go back to it using the method described above. Then I updated to version 4.8.04.2 through the galaxy store and it seems to be working well so far

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@Krog18
Thanks very much for this rom, it's running without issues for me
Question...what does modded theme store mean specifically? I went looking for themes and there were paid and free ones like it's always been. Maybe I was looking in the wrong place, is there a separate section for themes that are trials?
Edit: nevermind, I clicked on one of the paid themes, and I see an option for "download trial" I'm assuming that's what you mean, unlimited trial?