yashsingh1/xdaforums huggingface dataset:
[Realme GT Neo 2] NotAnotherRookie:
I bought the global version and the stock rom was a.03. atm im on a.07 global and wondering will this way allows me to downgrade to a.03?
[Realme GT Neo 2] shiddhi dai:
Yes it works, I recently changed region global a.03 and I got update to a.09. My Indian ROM have lots of unwanted apps global ROM is clean
[Realme GT Neo 2] NotAnotherRookie:
Where did you download the ofp files for a.03? Realmefirmware? Also all the steps should be the same right?
[Realme GT Neo 2] shiddhi dai:
I can give you the link. Yes same step
[Realme GT Neo 2] shiddhi dai:
Download Realme GT Neo2 5G (RMX3370) Original Firmware (flash file)

Realme GT Neo2 5G (RMX3370) firmware, where download Realme GT Neo2 5G (RMX3370) Stock rom all free. ....

oppofirmware.net
[Realme GT Neo 2] NotAnotherRookie:
I've read through this thread and I need to unlock bootloader? Is there other steps I need to do first? Really new at this.
[Realme GT Neo 2] shiddhi dai:
Install deeptest APK and get permission to unlock bootloader
[Realme GT Neo 2] NotAnotherRookie:
Do i really need to if I'm just flashing global version on a global phone? Sorry if that sounded stupid.
[Realme GT Neo 2] shiddhi dai:
Yes bootloader need to be unlocked while using ofp tool
[Realme GT Neo 2] NotAnotherRookie:
Alright I'll try that
[Realme GT Neo 2] wiretask:
GT NEO 2 Indian Version

I have unlocked the bootloader installed Russian firmware RUI 3 for Call Recording, everything working great, now I have locked the bootloader. I want to know how can I get back to RUI2 as there is no rollback package for Russian firmware and deeptest does not work on RUI3.

Is there anyway to rollback from RUI3 to RUI2 with Russian firmware locked bootloader. Kindly Help.
[Realme GT Neo 2] shiddhi dai:
There is no way you r locked in Ru region now
[Realme GT Neo 2] shiddhi dai:
Rose in Realme GT Neo 2 (bitra) | OFFICIAL

Take it as a warning to all, if you go to RU firmware A11/A12, and lock your bl, there is no coming back. ⚠️

t.me
[Realme GT Neo 2] iron maiden:
hello, you can't download android version 12 realme eu to android 11 without open boot I see that you couldn't open boot state in relame 3.0 android 12

thanks
[Realme GT Neo 2] sevendroid:
Hi, i ask for help. I tried this tutorial to change my CN rom to RUI3 Europe. Flashed as it says but it didnt finished ok (FLASH SUPER Failed). Now it bootloops forever. Im able to access twrp but it dont copy anything to internal memory neither OTG Usb works. I already tried this second method but first method in the post I cant because it needs to copy some files to internal memory. Second method it flashes FlashablePackage.zip but SuperPartition.img shows an error ( target reported max download size of 268435456 bytes

Invalid sparse file format at header magic ). I will be grateful if somebody could help me
[Realme GT Neo 2] wiretask:
Global version has realme dialer or google dialer ? pls answer i am interested in flashing...
[Realme GT Neo 2] shiddhi dai:
I am on global region and i have google dialer, i thick Russia region have realme dialer u can join telegram group and ask there
[Realme GT Neo 2] Efigeah:
I spoke to you by telegram.
[Realme GT Neo 2] sevendroid:
Thanks @SrCDA !. I was thinking that ``Invalid sparse file format at header magic`` was an error but its not( sorry that I didnt watch you video completely). I was also using minimal adb that probably is outdated. Installed this one as you send me and everything was ok. Flashed succesfully! Thanks again!
[Realme GT Neo 2] dantehrz21:
tengo un problema actualice mi telefono con la herramienta pero el tactil dejo de funcionarme alguna ayuda porfavor
[Realme GT Neo 2] dantehrz21:
hola necesito ayuda me paso el mismo problema no me funciona el tactil, podrias ayudarme si solucionaste el problema
[Realme GT Neo 2] tisil:
why do antivirus sees OppoRealme-OFP-Flash Tool as a virus?
[Realme GT Neo 2] tisil:
struct.error: unpack requires a buffer of 4 bytes

is this something?

you have a Telegram?
[Realme GT Neo 2] NotAnotherRookie:
Hey sorry for hijacking an old comment but since you're malaysian, im wondering how does indian rom work and what's the difference between indian rom and global rom? Thinking to switch as well because global rom feels like it's filled with hidden bloatware running in the background draining my battery while idle. I'm on c.02 and losing up to 10% every time I go to sleep.
[Realme GT Neo 2] SubwayChamp:
Flash persist through fastboot. Or restore the one you must have backed up.
[Realme GT Neo 2] Efigeah:
need 64 bit system
[Realme GT Neo 2] woolblack12341:
relame gt2 neo dragon ball when wanting to go global for some reason it does not give me an image but it does work since it sounds when you block
[Realme GT Neo 2] vikram.mohal:
Is this possible to return back to stock from Custom Roms?
[FYT Android Head Units] maverixz:
***Update* Resolved!

Hello good people, this is my first Android head unit and after some research bought the Ultra Plus. Got it installed yesterday at an installer, picked it up and drove home. The sound was working albeit too loud so had it at the lowest level and turned off the loudness. This morning, I started the car and no sound was coming form any of the sound sources - SD card songs, Bluetooth songs or radio. I reset the device and still no sound after the reset. Any advice that can help will eb greatly appreciated.
[FYT Android Head Units] cocodeng:
am I late? Check out the wiring and connect an external speaker to see if you can hear the sound, also check the amplifier if the car owns.
[FYT Android Head Units] maverixz:
Did that while testing and it worked with an external speaker. Changed the wiring harness from an Axxess to a PAC and now it works.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ryanyu930522:
is root necessary for this kernel to work?
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Not mandatory if you are ok with kernel defaults, otherwise you will need to root your phone if you want to change kernel settings.

Root (Magisk) can be flashed anytime on top, without problems.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ryanyu930522:
thanks
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] TheKaptan23:
I attempted for Note8 in HadesRom v2.0 so mobile phone froze on samsung login screen and it didn't turn on.

Anyone else having problems?
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ravrage:
It work only with android 9 hades room its not android 9, it work for me
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] wardh:
Do I need to toggle something for higher resolution in Dex? I only get FHD with Dex station and 3840x1600 monitor.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
@ up

First you need to change screen resolution in your phone.

Change from FHD to WQHD.

@ all

Nice to know that it works guys ! - As i don't have an Note8, but S8.

As you can see in changelogs and as well in S8 development sub-forum, this in an old project for the S8/S8+ and finally i'd the time to add support for Note8 as well.

Motivation was literally one year ago as @VoLTaqe asked me if i could add support for Note8 since it's the same platform, with some small differences.

Btw: if you are running this kernel, please post the output of:

free -m
# and
cat /proc/meminfo

Since Note8 has different RAM size, so i can adapt the zRam(swap) script. Also you should get a few extra MB RAM since i've optimized RAM partition, or better say cleaned up some useless reserved regions in RAM.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] wardh:
Like this? I'm using hades Pie if that's important.

total used free shared buff/cache available

Mem: 5376 3702 24 79 1650 1564

Swap: 0 0 0

MemTotal: 5505848 kB

MemFree: 24484 kB

MemAvailable: 1601800 kB

Buffers: 24828 kB

Cached: 1586144 kB

SwapCached: 0 kB

Active: 3720316 kB

Inactive: 719312 kB

Active(anon): 2838796 kB

Inactive(anon): 71492 kB

Active(file): 881520 kB

Inactive(file): 647820 kB

Unevictable: 572 kB

Mlocked: 572 kB

RbinTotal: 0 kB

RbinAllocated: 0 kB

RbinPool: 0 kB

RbinFree: 0 kB

SwapTotal: 0 kB

SwapFree: 0 kB

Dirty: 692 kB

Writeback: 0 kB

AnonPages: 2829292 kB

Mapped: 788908 kB

Shmem: 81632 kB

Slab: 203648 kB

SReclaimable: 78696 kB

SUnreclaim: 124952 kB

KernelStack: 48672 kB

PageTables: 104224 kB

NFS_Unstable: 0 kB

Bounce: 0 kB

WritebackTmp: 0 kB

CommitLimit: 2752924 kB

Committed_AS: 159413508 kB

VmallocTotal: 258867136 kB

VmallocUsed: 0 kB

VmallocChunk: 0 kB

CmaTotal: 106496 kB

CmaFree: 0 kB
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] wardh:
Thanks but it didn't help. WQHD is still grayed out in Dex. I have never got WQHD to work in Dex so maybe Dex doesn't like my monitor.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Alright, thanks !

Unfortunately i can't test Dex at all, but i'll check the source code.

So that meminfo output is with this kernel installed ?
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] wardh:
Yes, hades Pie with this A2N kernel.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Abdomam:
I'm using hades Q , will it work completely 100% or it will work but not everything or it won't work at all ?

Sorry for my english 😅
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Sorry bro, but it won't work at all.

Actually it's only for Android 9.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ryanyu930522:
Just in case, how can I return to stock kernel without reflashing the whole stock rom?

and how does the default setting's battery life compare to stock? thanks.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Note8 - stock kernel - DUG6 - fully patched.

It can be flashed over A2N kernel without any wipes.

Later when you are tired of stock kernel, you can re-flash again A2N kernel over it without to wipe anything.

No idea as i don't have Note8.

But in theory it should be better. At least it's true for S8 compared with Samsung stock kernel.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Hi guys ! - I've uploaded an test kernel for Note8.

Please flash it, boot to Android and post the output of:

uname -r
free -m
cat /proc/meminfo

Run the cmds in ADB or directly in your phone using "terminal emulator" app.

I'm working on new release with better memory management and improved stability.

Stay tuned !
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] wardh:
:/data/data/com.termux/files/home # uname -r

4.4.111-a2n-gcb046ce4

:/data/data/com.termux/files/home # free -m

total used free shared buffers

Mem: 5376 5229 147 23 36

-/+ buffers/cache: 5192 184

Swap: 0 0 0

:/data/data/com.termux/files/home # cat /proc/meminfo

MemTotal: 5505864 kB

MemFree: 225356 kB

MemAvailable: 2890360 kB

Buffers: 37528 kB

Cached: 2604260 kB

SwapCached: 0 kB

Active: 2744456 kB

Inactive: 1363036 kB

Active(anon): 1475776 kB

Inactive(anon): 13768 kB

Active(file): 1268680 kB

Inactive(file): 1349268 kB

Unevictable: 604 kB

Mlocked: 604 kB

RbinTotal: 0 kB

RbinAllocated: 0 kB

RbinPool: 0 kB

RbinFree: 0 kB

SwapTotal: 0 kB

SwapFree: 0 kB

Dirty: 48 kB

Writeback: 0 kB

AnonPages: 1466424 kB

Mapped: 1370176 kB

Shmem: 23840 kB

Slab: 191384 kB

SReclaimable: 77776 kB

SUnreclaim: 113608 kB

KernelStack: 39344 kB

PageTables: 82248 kB

NFS_Unstable: 0 kB

Bounce: 0 kB

WritebackTmp: 0 kB

CommitLimit: 2752932 kB

Committed_AS: 147370448 kB

VmallocTotal: 258867136 kB

VmallocUsed: 0 kB

VmallocChunk: 0 kB

CmaTotal: 106496 kB

CmaFree: 2276 kB

:/data/data/com.termux/files/home #
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] canka591:
The kernel is incredibly fast, thanks to the special cooling, I was able to use the small core 2GHz, Big core 2.8 GHz and the GPU at 839 MHz stably.

This kernel provides a extremely fluid experience, but unfortunately I had to revert to this version because my entire setup was on android 10.

I hope one day there will be a version for Android 10 that will at least have enough CPU and GPU overclocking option and we will use it with pleasure.

Below are some test photos for you to compare.

My Set.: Big 2.8 GHz -20mV + Little 2 GHz -20mV + GPU 839 MHz + DVFS Limits are 100 °C
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Feardarks:
very good scores. try playing cod in highest settings tho :LOL:
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Feardarks:
whats on the right corner ? what app is that?
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] canka591:
Right corner Franco Kernel Manager (fps not work btw), Left corner 3C AiO Toolboox Overlay
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
For FPS install game plugins from Galaxy Store and then install "Perf Z".
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
New Kernel and App are Up!

Hi Guys,

I'm very happy to provide to you one more update for this phone.

Probably this is our final build since everything is optimized to the max and it works stable. But like always, "never say never".

Of course if there is some critical security leak that could appear in the future in the Linux/Android kernel that could affect the security of this phone, then it'll be fixed ASAP.

Changelog

A2N Kernel R59

Re-enabled CONFIG_MEMCG - to reduce memory usage

LMK/HPA: updated driver for better memory management - by me

CPU/GPU: updated voltages - increased a bit for stability

Fixed USB-JIG feature

SELinux: fake enforcing enabled by default

LMK: updated minfree values to work more efficient with updated LMK driver

Init: removed init.d.a2n - instead we use now default init.d folder

A2N Kernel Control V59

GPU: improved "Gaming Mode"

RAM: simplified swap control

CPU/GPU: added ability to check temperature

Updated defaults & fixed bugs

Flash and enjoy like always!

DOWNLOAD

Edit:

OK guys, new release is fully rolled-out! :cowboy:

For max performance and best gaming/benchmark experience, you can use the following settings:

DVFS max temp for CPU/GPU 100 °C

do CPU/GPU OC or use profile "Performance Plus".

CPU lit/big: enable "Boost"

GPU: enable "Gaming Mode"

RAM: enable "Use Swap" (zRam Size 50 %)

This will be your most fast and smooth experience ever on this phone! (y)
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] n0te8user:
hi i bought this app but my 3dmark and geekbench scores are so low. gb5 and 3dmark points r 1k around. i am using about max and boost settings. i m using w/hades pie 12.0 can u help
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Hi!

Could you please post what you have changed in a2n app and also post your bench results as a screenshot.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] n0te8user:
I did tests again after resetting the phone so sorry I'm late.

Max freq 2704

Suspend max 2652

Max tem 90C

A53 max freq 1898

Suspend max 1794

I didnt change voltage settings

Gpu max 764

I didnt change anything

I am satisfied for daily use. surf the internet twitter instagram. etc and I don't have a heating problem. gb5 score is more or less normal but 3d mark is low. what settings do you recommend
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
The scores are normal according to your settings.

For highest scores, use CPU/GPU max temp 100 °C and enable boost on little and big CPU.

Btw for what you need CPU OC while the screen is off? I suggest to keep at least stock freqs there for better battery life.

Tip:

Before you start a bench, make sure that the phone is not warm to avoid early throttling.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] n0te8user:
i suggest this kernel i dont have a cooling system , a little overclock and despite undervoltage reduces the heating problem and provides a serious performance increase. This is gb5 compute test result If I give a concrete example, i play mobile legends sometimes. I can play almost fluently on ultra settings. Many people didn't mention it, but apart from overclocking, adjusting the battery amper is also an extremely good feature. I was very uncomfortable with the charging speed before this kernel.thanks for your good job bro.finally i tried with lots of roms but the best performance i think is stock rom
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] n0te8user:
i updated app from playstore, do i need to flash the kernel again on twrp?
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Yes since the app will not update the kernel.

Download latest A2N kernel and flash it over TWRP.

Finally flash Magisk to restore root.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
New build is up!

Changelog

A2N Kernel R60

RAM: Fixed regression from R59 in memory management

RAM: improved multitasking

LED-RGB: added a new sysfs interface to force low_powermode_current

CPUSETS: moved "surfaceflinger", "systemui" and "InfinityWallpaper" to little CPU to save battery

A2N Kernel Control V60

RAM: optimized zRam routine

Misc: optimized red LED (ability to force low_powermode_current instead of dynamic_current)

Updated strings (help text)
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] n0te8user:
if i change zram size from 75 to 100

page cluster 0 to 3

swappiness 175 to 195

Does it increase or decrease speed?

or is it best settings are default setting?
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
It'll decrease speed, but more data will fit in RAM. Usually best user experience is with zram size 50 - 75 %.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] nicolo777:
I have 2 questions man before try it.

There is a config file that i can edit?

Can this work with android 9 but lineage?
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Hi Guys,

even the fact that I'd stated that I'll no longer update this kernel ....

But I couldn't let it be and therefore ....

HERE WE GO AGAIN: :cool:

Changelog

A2N Kernel R61

RAM: improved memory management and fixed bug

USB: fixed tethering instability issue (needs more testing)

GPU: trigger kernel panic on GPU fault instead to issue a soft-reset

Removed buggy gaming_mode

GPU power-policy: force to use "coarse_demand" on suspend if "always_on" is enabled - saves battery (around 30 mA!)

CPU/GPU DVFS: reduced "gpu_dvfs_sleep_time" from 8 to 4 ms

GPU: fixed soft-reset issue caused by buggy HMP driver - this should fix GPU freezes and lags!

HMP: fixed bugs and adjusted tunables to be more aggressive - (faster and smoother)

CPU: updated ondemand gov

CPU: updated input-booster driver to be more efficient (more smooth, less battery draining!)

GPU: disabled shader cores hotplugging for better performance!

Updated ramdisk

A2N Kernel Control V61

CPU/GPU DVFS: added ability to check "Peak Temperature"

Misc: LED-RGB: added power control

CPU-BIG: removed CPU-Hotplug feature (redundant)

GPU: replaced "Gaming Mode" with "Boost"

GPU: added power-policy for "Always On"

CPU-BIG: merged "Input Booster" into "Boost"

CPU-LIT: removed "Boost" (redundant)

Audio: moved "PM-QOS" to "Debug" menu

Fixed bugs and improved performance

DOWNLOAD KERNEL

Flash and enjoy!
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Feardarks:
youre awesome! nice to see long changelog :)
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Feardarks:
im experiencing random restarts after r61 update in performance plus mode. last night my phone restarted twice. and restarted today in the morning while browsing on facebook.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
Yes it'll be fixed in next build.

Soon available.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
New Release is Out!!

Changelog

A2N Kernel R62

Fixed instability issues

Fixed performance regression

Updated LMK driver and optimized memory management

CPU/GPU: updated ondemand gov

CPU/GPU: updated DVFS driver to handle even little CPU if needed lol

Updated HMP driver for higher performance on multi-thread

Updated input booster for max smoothness

Fixed some bugs in video/camera driver

GPU: updated mali driver

Updated devfreq driver (system clocks)

Enabled TDMB for korean models - required for FM radio

Enabled zRam @ 75 % by default

CPU boost + input booster enabled by default

Set boot DVFS temp @ 75 °C (to speed up dalvik-cache compilation) and @ 55 ° on boot_completed to reduce the device heat for normal daily usage

Fixed CPU/GPU temp not showing up properly in apps like "DevCheck"

Updated ramdisk

A2N Kernel Control V62

added game boost level - from low to high+

updated powersave profile

CPU/GPU: updated voltage control

updated theme to my custom dark-mode

better handling of restoring app settings

updated app defaults

Release Informations

Now apps should be able to show proper CPU/GPU/Bat temp.

See my DevCheck screenshot.

A2N app has now changed behavior in debug menu.

"Disable Restore Settings" will no longer wipe app settings.

Instead it'll just not apply any settings as long as this button is enabled.

Anyway, it'll still apply any settings if if set them actively in the app.

To apply ALL custom settings, just disable this button and restart the app, then the usual dialog box will appear about "Applied A2N Settings".

For Korean model I've found out some data about that it should support FM radio ... so I've enabled the required driver TDMB. To test if real FM radio works on your Korean model, you need the latest Samsung stock ROM + latest A2N kernel (min R62) and then you can test both attached real FM radio apps .. "SpiritFMFree" (root required) and "nextradio".

If one of them works, please let us know!

Info for banking apps:

Banking apps actually works!

You need to use the "Universal SafetyNetFix" by Displax in Magisk.

Then this will patch your Play Integrity API like you see in my screenshot attached here.

Enjoy as always your favorite kernel.

Cheers: a2n 🍺

Download R62
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Feardarks:
Thanks for your long support to this kernel!

I bought s23 ultra and give my note 8 to my mom. I can no longer experience your excellent work 🥲
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] n0te8user:
if i flash older version can i use older version? i dont like new settings. i have been like gaming mode. idont like game boost level i think not useful. Freezes started in the games I used to play fluently and i wanna can set min freq. frequency can go down from 2k to 800 at a time.instant freezes. gpu always on = high+ ??
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Copyx:
Hi there, great work. i would love if you could make this Kernal work with lineage os Android 13. if its doable.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Nikkerston:
doest this kernel work on Samsung experience9? Android 8.0 stock rom magisk modded
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
No, it works only on Android 9. Time to update to Android 9, there is really no reason to use Android 8.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Nikkerston:
the main reason i still have android 8 on this note 8 is because its rarer to have an older OS and its faster than android 9 and i refuse to update this phone

so are there other kernels available that can have an OC for this phone that would work on 8?
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] ace2nutzer:
If you compare the stock ROMs with stock kernels, then yes, Android 8 is faster. But if you compare Android 8 vs Android 9 with A2N kernel, then Android 9 will be much faster. Try and see yourself to believe.

Note: to unlock full speed, you need a premium kernel control app. (demo version will be installed automatically and if you like it, you can upgrade to full version). Enjoy!

No.
[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] Nikkerston:
kernel control app? that hasnt appeared for me on my Note 8 and S8. updated to android 9 on a binary that allows downgrading to android 8