yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 20 Questions & Answers] FidesnsInai:
What do you mean by that exactly?

I want to buy a current Samsung Galaxy Note 20 (Snapdragon model) and unlock the bootloader and flash custom ROM.

That means I want to have the general possibility to unlock or lock the bootloader whenever I want to and it must be local.

I do not want these 3 points.

1. Bootloader can only be unlocked with an online account.

2. Request an unlock code on the manufacturer's website. Requires an internet connection to the manufacturer's server and must provide an email address to get the unlock code and then the user can enter it into ADB (Android Debug Bridge) to unlock the bootloader.

3. Install an unlock app (.apk) from the manufacturer and the Android device will be unlocked by the unlock app, but needs an internet connection in the unlock app.

Note:

I have tested everything with current Android 10 devices.

At point 1 I know it on my Xiaomi device.

At point 2 I know it on my Sony, LG and Nokia devices.

At point 3 I know it on my Asus and Realme devices.

I'm looking for Android devices that have a local and direct possibility to unlock the bootloader without online account, without unlock code (online request), without internet connection.

---

Another question you say on Samsung devices there is a KG State, what is that exactly?

I searched the forum, but there was no such clear information. As I understand it, it seems that when this "KG state" is set to "prenormal" on Samsung devices, the user cannot flash custom ROM and unlock the bootloader for about 7 days (168 hours).

Is this true?

What exactly does this KG State solve, how can it be prevented? Does it only happen for Samsung with Snapdragon model or only for Exynos model?
[Samsung Galaxy Note 20 Questions & Answers] elliwigy:
you will need a data connection.. even if bl is unlocked after u unlock it will wipe device.. u then need to reboot and skip through setup wizard and connect to mobile data or else kg status will be "prenormal" and not let you flash anything custom..

kg state is different than the 7day period. kg is also called knox guard and no, theres no way around it, u have to connect to data for it to change. it is on all samsung devices exynos and snapdragon.

and thats if its unlockable.. not all snapdragon devices can b unlocked.

also this isnt a xiaomi or lg or nokia or asus or realme device.. samsung has its own extra security..

theres no easier way to explain it.. i suggest u read up on it and check existing samsung device forums to get more info
[Samsung Galaxy Note 20 Questions & Answers] FidesnsInai:
I have now tested more Android devices and finally found Android devices where I can locally unlock the bootloader and also flash locally custom ROM without data connection, unlock code, online account and KG State.

It is a Google Pixel 3 and a OnePlus 7T. It is important that it is not the T-Mobile version!

So no provider devices, because when I bought a OnePlus 7T T-Mobile version I could not unlock the bootloader. It needs a unlock code (online request), because of SIM-Lock. It is not possible to unlock the bootloader directly and locally, for example to flash the stock rom (without T-Mobile).

My recommendation to the users, if you are looking for Android devices that can unlock the bootloader locally (via ADB) and flash locally custom ROM. Then Google Pixel and OnePlus devices that can do this, but only the free provider version, very important!
[Samsung Galaxy Note 20 Questions & Answers] elliwigy:
huh? you talk about bl lock because of sim lock (sim lock has nothing to do with it, even agter getting sim unlocked they are still not bl unlockable) then unlock locally via adb (isnt it fastboot which is not adb?) then pixel and one plus (theres many many other devices that are bl unlockable besides these two) then but only free provider version (huh?)
[Samsung Galaxy Note 20 Questions & Answers] FidesnsInai:
I meant fastboot and not ADB. Sorry, I downloaded this here on XDA forum. I have simply considered ADB as a whole

https://xdaforums.com/showthread.php?t=2588979

Yes generally do not buy a provider version for all Android devices. There are only additional restrictions and is always dependent on the provider server.

I have to do this here with my OnePlus T-Mobile version, see the OnePlus support page.

https://support.oneplus.com/app/ans...-to-unlock-bootloader-for-oneplus-smart-phone

I need to unlock the SIM and request an OEM code and then I can unlock the bootloader locally and flash locally custom ROM or stock rom (without T-Mobile).

I can confirm that these Android devices Google Pixel and OnePlus without provider version can by default unlock the bootloader locally and flash custom ROM locally.

The user can just buy these Android devices in the store and do everything locally right away. No data connection is required. All you need are the tools and the custom ROM on the computer, which you can download and save to an external hard drive.

Quite simply said. Something similar when the user installs a Linux distribution (Ubuntu, Linux Mint, Fedora) on his computer or notebook.

Other Android devices, like I said before, need a data connection to unlock the bootloader, e.g. via app, online account or an unlock code (online request).

https://xdaforums.com/showpost.php?p=83480827&postcount=3

Samsung devices I haven't tested, but have the similar problem (needs data connection to flash custom ROM), which you wrote yourself, because of KG State.
[Samsung Galaxy Note 20 Questions & Answers] doggydog2:
This is important to say, thanks. True as it is, only Google and Oneplus devices are free to use (equals root). Google can even accommodate GrapheneOS.

from my poor understanding of the recent 2-3 generations:

Root and developer friendly: google, oneplus

+ GrapheneOS compatible : google

+ Ez single command unlock like when we were young : oneplus

+ OTA Updates when rooted : oneplus

+ flash update without PC : oneplus

+ Encryption never touched : oneplus

Relatively root friendly : xiaomi, asus, sony, lg

+ official "support" of unlocking : all

+ without internet spying aspect of the procedure : none?

+ "featuring" disgusting wait period : xiaomi (realme)

+ chance of losing encryption: high (it is possible to forget ROMs and TWRP and keep it on some models)

Root unfriendly : samsung

+ official "support" of unlocking : no

+ "featuring" knox trip : yes

+ "featuring" key combination to boot : most models

+ can't even unlock : note20?

Root almost impossible : huawei, oppo and other small brands

now i don't care how difficult the first root procedure is or to knock some stupid fuse, but rather care more about how update procedure is, and can't adher to the new "standard" of killing encryption by disablers, so naturally i'm stuck to oneplus for the daily driver device. i can only look at the pictures and reviews of other brands :)

*people who root will go to heaven*
[Samsung Galaxy Note 20 Questions & Answers] elliwigy:
huh?

lol i dont understand most of last two posts.. i have g988u g986u rooted on unlocked bl no problem, no buttons need to be pressed, twrp exists, custom roms are easy, dunno what grahpOS even is and the list goes on.. if u kno wat ur doing samsung isnt that bad but yes, google 0urchased devices of course are easy
[Samsung Galaxy Note 20 Questions & Answers] persimmonhardrollsfig:
I have read all the answers here and would like to add additional points that the OP (original poster) mentioned but did not add to a concise list.

+ Unlock bootloader without network connection and online account : Google, OnePlus

+ Rooting and flashing without network connection and online account : Google, OnePlus

Note: The 2 new points work immediately and only if it is not a provider device. If it is a provider device e.g. from T-Mobile it does not work, in this case (Google and OnePlus) you need for the first step (unlock bootloader) a code from the provider and is dependent on its server so simply put, you need a network connection.

This point generally applies to almost all Android devices, regardless of whether the manufacturer allows bootloader unlocking or not (e.g. Huawei).

It is confirmed several times by users in recent years see in XDA forums. Some examples Sony, LG, Asus, Xiaomi, Samsung, Realme, vivo, OPPO and Nokia, no matter if provider or non provider device. These Android devices spy because the first step (unlock bootloader), necessarily requires a network connection. For example, via online account, code or app (network connection required, sometimes it works only if the user has mobile data in the app).

Simply put without internet spying is not possible.

If only compare this point with iOS/iPadOS devices, so jailbreak. Then it is almost similar, that is on current iOS/iPadOS devices you also need a network connection first to complete the "iOS Setup", when that is done a jailbreak (if available for the respective iOS/iPadOS version can be made). In some cases, so with very old iOS devices for example the first iPhone you can bypass the iOS setup (so without network connections) and can then, as usual make a jailbreak.
[Samsung Galaxy Note 20 Questions & Answers] billyt1:
Pixels from Google and One Plus is what your looking for. In both cases you will have to fully boot the phone skip thru setup unlock developer option oem unlock toggle before you can unlock pixel or one plus
[Samsung Galaxy Note 20 Questions & Answers] Boardgul:
People this is a very big problem with Samsung and other manufacturers. Current smartphones are not independent devices, without server of the manufacturer nothing works.

LG is closing the bootloader unlock program that would help keep its Android phones alive

After ending its mobile business earlier this year, LG has confirmed it will also shut down the bootloader unlock program.

9to5google.com

Here is a very recent example. LG will soon close its key server for unlocking the bootloader. Until December 31, 2021, you still have time to unlock the bootloader of your LG smartphones. Later it is no longer possible.
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Chatur27:
Hi all,

this is the thread for a custom kernel i made for Samsung Galaxy A10 based on android pie (9).

The custom kernel has been named Eureka which is a greek work which means "I have found the solution". This kernel is the solution for both gaming and performance on our cheap A10.

Compatibility:

This kernel has 2 versions. One version works only on ONE UI (can be stock or debloated ONE UI) and the other version works on GSIs and custom roms (GSIs built specifically for A10). So, please download the correct version.

FEATURES:

* Disabled Samsung security features

* Enabled all governors except Schedutils governor.

* Overclocked CPU as follows:

BIG Cores: from 1560 MHz to 2080 MHz.

LIL Cores: from 1352 MHz to 1690 MHz.​

* Underclocked CPU as follows:

BIG Cores: from 728 MHz to 312 MHz.

LIL Cores: from 449 MHz to 208 MHz.​

* Added GPU thermal and voltage control

* Added latest boeffla_wl_blocker V 1.1.0 and disabled some wakelocks

* Network speed improvement

* Enable zram support.

* Switch to a lower charging voltage more quickly.

* GPU max frequency overclocked from 676 MHz to 1300 MHz

* Implemented Dynamic FSync 2.0

* Has Spectrum support

* Pre-rooted with magisk 20.4

* Built with Linaro V4.9.4 toolchain. Reason: Better performance

* FOR GSI:

* Fixed ADB and MTP.

* Set SElinux as permissive​

Please read the changelog for full list of changes.

KNOWN ISSUES:

* None

SOME MINOR TWEAKS FOR BEST GPU PERFORMANCE:

* Set GPU power policy to "always on"

* Set GPU governor to "static"

* Set min and max GPU frequency to 1300 MHz

* Disable GPU thermal manager to prevent GPU frequency from dropping

* If you are on ONE UI and GPU keeps on changing when u force it at 1300 MHz, disable/remove devicehealthmanagerservice and gameoptimizingservice apps

* Games don't require high CPU frequency because they depend more on GPU. You can therefore decrease CPU max frequencies to reduce heating of the device.

Best kernel manager for Samsung A series devices is HkTweaks:

LINK: https://drive.google.com/file/d/1LeFWtpBJJEpoU9eT6NH2lImem8yTf_na/view?usp=sharing

My contact info:

Developper:

* Telegram: @Chatur27

Channel for Eureka future updates:

* Telegram: https://t.me/eureka_kernel

Official discussion group for A10:

* Telegram: https://t.me/a10grp

I'm grateful to KineSight for designing the logo.

* Telegram: @Kinesight

Download link for my kernels for A10:

EurekaR4.0 for A105 using GSI or custom rom:

https://github.com/Chatur27/Eureka-kernel-for-SM-A105-Pie/releases/download/rev4.0/Eureka.R4.0_A105.GSI.Pie.zip

EurekaR4.0 for A105 using ONE UI based roms:

https://github.com/Chatur27/Eureka-kernel-for-SM-A105-Pie/releases/download/rev4.0/Eureka.R4.0_A105.ONEUI.Pie.zip

Source code for my kernels:

https://github.com/Chatur27/Eureka-kernel-for-SM-A105-Pie
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] sifonaru:
Can I flash this kernel with Fk Kernel Manager or Ex Kernel apps? I do not have twrp installed, but I have magisk and root on my stock rom. And if I flash it will I lose magisk or root on phone?
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Chatur27:
Hi, I never tried to flash using those apps but you can try if u want.

My kernel is pre-rooted with magisk 20.4, so you won't lose root.

Its a good practice to have TWRP on a rooted device, because it can backup and restore data or system.
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] sifonaru:
I really want to try your kernel but just afraid that if I install twrp on my magisk rooted device I can lose all my data. It's enough to flash twrp from Odin? Is there any patch or step required (before or after the twrp flash process)?
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Chatur27:
After u flash TWRP, u will have to go to wipe→format data→type "yes"

This is done so as to remove the fbe error in twrp.

So u should backup your data first.

Since your phone is already rooted, you can use titanium backup pro to backup your app/game data

When u launch the app for the first time, you have to go it's preferences and scroll down till you find "Backup app external data" and choose "Enabled (always)

Just backup your desired apps and move the TitaniumBackup folder found on your internal storage to your pc or SD card.

To restore, install titanium backup Pro again and copy the TitaniumBackup folder to your internal storage.

Link to titanium backup:

https://drive.google.com/file/d/1MHvWowC6ygCWFKGpOBavkOZCiPtz7OJs/view?usp=drivesdk
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Primeaqua02:
You don't have to wipe all your data, just wipe cache and dalvik
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Chatur27:
Bro, that won't solve fbe error.
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Zloemoloko1998:
2080 MHz frequency does not work

Hello, I have a maximum frequency of large cores of only 1768 MHz but in settings EX Kernel the manager has the ability to choose 2080 MHz, what may be the problem?
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Ievinf:
i did flash the kernel and i got an issue, the phone bricks when i power on with the charger connected and i cant run the phone, but when i disconnect the charger from the phone and power on it runs perfect with the kernel, idk why, when i shut down my phone and i put the charger the charging icon got a freeze for forever. whay i can do?
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Chatur27:
Yeah,that's a limit of Exynos Kernels.

No fix has been found for that yet.

I recommend using HkTweaks and go to CPU tab. Change governor to userspace and min and max Frequency to max frequency (2080 and 1690)

This has high battery drain. So use it only if u need max performance
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Maroon2609:
Hello, I have a question, is this modified kernel useful for the Pixel Experience custom ROM with Android 10? I wait your answer.
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] dornz:
Is it android 10 compatible ?
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Chatur27:
First of all, the thread title says it's for Android 9

If you want Eureka for Android 10 , Search XDA more

There is another version for Android 10

A kernel makes any ROM/GSI better. Just try it

You can always go back to stock Kernel later
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Chatur27:
If you want Eureka for Android 10 , Search XDA more

There is another version for Android 10
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] IneedFiveMore:
Please

How to flash this kernel, some body got the bricks phone, please give me the method to flash, thank you.
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] Chatur27:
It's not easy to brick a Samsung phone :)

God knows where u get this information.

This kernel is 100% working.

Just flash the kernel in twrp and reboot.

This kernel version already has magisk root.

If you get stuck on A10 logo, force restart and let it boot normally
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] JuCeNM2496:
I have rebooted into "Download Mode" and have successfully flashed TWRP 3.3.1-0. Now, after rebooting and accessing the recovery, I have done a "Format Data", to then flash Eureka Kernel 4.0, then I did a "Wipe Dalvik and Cache" and then "Reboot System", but the device falls into bootloop... I then rebooted into TWRP to flash Magisk 20.3 to see if that way the device would bootloop, but it remains the same. Ultimately I proceeded to flash magisk-uninstaller and it didn't work. The only way is to reinstall the firmware.

*What is the correct way to install this kernel?

*Does it actually work for Android 9?

When flashing the kernel it says: "FOR ANDROID VERSION 10 (Q)"

PS: I clarify that I have flashed "Eureka.R4.0_A105.ONEUI.Pie.zip" which is supposed to be the proper kernel for Android 9 Pie.
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] JuCeNM2496:
I managed to install your kernel correctly, thanks really, it works great… It cost me a little at first but it already remained…

I have seen that in the kernel you developed for Android 10 you added «double tap to wake» and «double tap to sleep». Could you add it in a future update in this version for Android Pie?
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] edwinjavier504:
try to install this kernel on android stock 9, with twrp but it left me on galaxy a10 frozen

I tried with the two files one by one repairing the system
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] edwinjavier504:
how did you do it?
[Samsung Galaxy A10 ROMs, Kernels, Recoveries, & Ot] JuCeNM2496:
You have to follow a few steps:

1- Start in TWRP and in "Backup and Restore" choose only the "Boot" partition into SD Card or Internal Storage…

2- Install "Eureka-4.0" and Wipe /Cache and /Dalvik and then restart.

3- Wait until the system starts (that takes about 10 minutes) if the device gets stuck on the boot logo, force the shutdown by pressing the keys: "Power" & "Vol +" & "Vol -" after this it should start correctly.

4- If it still doesn't turn on you will have to force it off once more and start in "Recovery Mode" and flash Magisk "20.3" or Magisk "20.4" (you shouldn't install a newer version of Magisk or there will be bootloop problems)

5- Reboot and enjoy… ✌🏼

P.S: If the bootloop still persists (somewhat unlikely) then go to "Backup and Restore" and choose to restore the "Boot" partition that they had previously backed up and everything is fine again, as if nothing happened. Good Luck!!!
[Sprint Samsung Galaxy Note 8 Questions & Answers] nandu41:
I owns one Galaxy Note 8 SN950-F Indian version,

I have installed one custom ROM for my mobile last month and now i need to revert back to stock.

How can i do it ?

Once i installed stock OS using Odin but Knox looks crashed and apps like secure folder not working !

Can i get it done through service center ? When i contacted them they said its impossible as you have rooted once.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] physwizz:
Great work

Download link https://drive.google.com/folderview?id=131huI-6lQYC-IpJxUTMnJvoIOCN5C69Y

Install Magisk Uninstaller

Install kernel

Install Magisk 20.3

Reboot

You can install Magisk 20.4 later

Benchmarks

CPU 1395

GPU 276 975

Antutu: 140720
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] techmanc:
I not that great with OP to know if this work will work with my phone the A20 205U and I get nevious with changing clock speed and having to tweak them later?
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] Chatur27:
This kernel has been tested by various A20 users. It should work on your device too. The kernel is pre-rooted with magisk 20.4

If you are facing issues, use the guide provided by Physwizz above.

You dont have to worry about changing clock speeds because they have been tested and they are stable. Only the 2184 MHz frequency gives random reboot on some A20.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] techmanc:
I have Magisk 20.4 installed which file I d/l lets see if I cop/paste right

* Telegram: chatur2709

Download link for my kernels for A20:

EurekaRev3.9 for A205 using GSI or custom rom:

https://github.com/Chatur27/Eureka-k...A205.GSI.Q.zip

EurekaRev3.7 for A205 using ONE UI based roms:

https://github.com/Chatur27/Eureka-k...05.ONEUI.Q.zip

Source code for my kernels:

https://github.com/Chatur27/Eureka-kernel-for-SM-A205-Q

Last edited by Chatur27; Today at 05:18 AM.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] burningcreation:
I'm keen to give this kernel a go. What version do I use if I am using the Ultimate Q S20 ROM?
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] techmanc:
I have Magisk manager installed 7.5.1 not 20.4 installed I got both from the website it says unknow image format.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] Chatur27:
Ultimate Q is debloated ONE UI

So use the ONE UI version.

LINK: https://github.com/Chatur27/Eureka-...ownload/rev3.9/Eureka.Rev3.7_A205.ONEUI.Q.zip
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] Chatur27:
Magisk manager is an app which controls root access

Magisk 20.4 is the latest root

Your download is probably corrupted. Slow internet can corrupt files.

Download it again and flash via twrp.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] burningcreation:
Thank you. I appreciate the work.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] Michuuuu:
great work :good: MTP works great
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] burningcreation:
When I have Quantum V2 kernel running I have the 'Advanced settings' option in Display > Full screen apps to hide the camera cut out.

When I install this kernel the option disappears.

Is this normal? Any way to fix?

Thanks.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] ninjasinabag:
It will not work on the U models.

We have a locked bootloader.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] jajk:
R4.1 works nice ;)
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] physwizz:
Link https://drive.google.com/folderview?id=131huI-6lQYC-IpJxUTMnJvoIOCN5C69Y
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] techmanc:
So the U model just comes from metro I did ask via phone call if I can unroot my phone legally as they said yes but they would not do it so I wish I could sue metro for lying I all I said was it was a galaxy
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] ninjasinabag:
A205u is the north American universal device.

You can unroot your device, They cannot unroot it for you, because you literally voided your warranty.

You are liable for any and all changes that you make to your device. Only you. Nobody else.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] Chatur27:
I don't know about this issue

No one reported that before.

I don't know how is this feature related to kernel.

I'm on A10 using Eureka and these options are still there for me tho.
[Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot] burningcreation:
Thank you. I might try doing a full wipe and installing.