Samsung galaxy A20 unlock BL install root and twrp - Samsung Galaxy A20 Questions & Answers

so I have a Samsung galaxy A205U and some people say its possible to do root and unlock BL and twrp burt and some say its not but if someone could help with this please let me know I am currently trying to do this with odin because I don't know if it has a locked BL or not so any help would be appreciated ,Thanks!:good:

christianh10506 said:
so I have a Samsung galaxy A205U and some people say its possible to do root and unlock BL and twrp burt and some say its not but if someone could help with this please let me know I am currently trying to do this with odin because I don't know if it has a locked BL or not so any help would be appreciated ,Thanks!:good:
Click to expand...
Click to collapse
Sorry, the 205U cannot be rooted.
https://forum.xda-developers.com/galaxy-a20/how-to/root-samsung-galaxy-a20-rooting-guide-t3954872

Brah its so easy to unlock oem!
I'm so shocked and surprised that you guys haven't figured out how to unlock bootloader. Aren't you guys like the smartest computer wizards alive? Anywho... Ok kid this is how you unlock oem and will allow you to install any os you want.
Step one: power off your phone.
Step two: when you power off your phone and at the moment that your screen turns black press down and hold:
Step 3: Press both volume buttons at the same time, then after you feel the phone vibrate one time immediately...
"without lifting your fingers off of the two volume buttons"​ press and hold the power button.
Step 4: As you continue to hold down all three buttons at the same time.
The phone will vibrate, then it will take you to a green screen that states that installing a new operating system will erase your data, or void your warranty, or something like that.
Step 5: press the Volume Up Key to accept the consequences.
When you restart the phone will download an update which will allow oem unlock option to appear in Developer Mode Options.
Step 6
Go to about phone, then scroll down to Software Information, then click on Build Number 7 times. Go back to Settings and scroll all the way to the bottom and access developer options. Then scroll down until you see oem unlock. Check for notification of the update finishing.
Do all of this by the way with the phone connected to your computer. There's like a couple of tutorials online that you can find on youtube and on Library.
TADA! It worked for me just fine; ya sheee?!

Jaybitzleguan said:
I'm so shocked and surprised that you guys haven't figured out how to unlock bootloader. Aren't you guys like the smartest computer wizards alive? Anywho... Ok kid this is how you unlock oem and will allow you to install any os you want.
Step one: power off your phone.
Step two: when you power off your phone and at the moment that your screen turns black press down and hold:
Step 3: Press both volume buttons at the same time, then after you feel the phone vibrate one time immediately...
"without lifting your fingers off of the two volume buttons"​ press and hold the power button.
Step 4: As you continue to hold down all three buttons at the same time.
The phone will vibrate, then it will take you to a green screen that states that installing a new operating system will erase your data, or void your warranty, or something like that.
Step 5: press the Volume Up Key to accept the consequences.
When you restart the phone will download an update which will allow oem unlock option to appear in Developer Mode Options.
Step 6
Go to about phone, then scroll down to Software Information, then click on Build Number 7 times. Go back to Settings and scroll all the way to the bottom and access developer options. Then scroll down until you see oem unlock. Check for notification of the update finishing.
Do all of this by the way with the phone connected to your computer. There's like a couple of tutorials online that you can find on youtube and on Library.
TADA! It worked for me just fine; ya sheee?!
Click to expand...
Click to collapse
What you have done does NOT root the phone
You obviously have not read this section.
The 205U cannot be rooted
You can only install official updates
look here
https://forum.xda-developers.com/galaxy-a20/how-to/android-10-q-guide-a20-t4095589

Disregarding official methods of rooting your phone, is there any way of manually or forcibly patching or modifying the bootloader without permissions given by the manufacturer? Such as doing so by an outside terminal on a computer.
I understand the risks of bricking a phone device.

Techipit said:
Disregarding official methods of rooting your phone, is there any way of manually or forcibly patching or modifying the bootloader without permissions given by the manufacturer? Such as doing so by an outside terminal on a computer.
I understand the risks of bricking a phone device.
Click to expand...
Click to collapse
Not for the A205U
Most others of A205xx can be rooted

christianh10506 said:
so I have a Samsung galaxy A205U and some people say its possible to do root and unlock BL and twrp burt and some say its not but if someone could help with this please let me know I am currently trying to do this with odin because I don't know if it has a locked BL or not so any help would be appreciated ,Thanks!:good:
Click to expand...
Click to collapse
It's a 50/50 chance for rooting. Samsung may remove the rmm lock on the a20 series once our 2 year update period is over.
Or it may be like the Verizon samsung galaxy S4 which has still never been fully rooted.

ninjasinabag said:
It's a 50/50 chance for rooting. Samsung may remove the rmm lock on the a20 series once our 2 year update period is over.
Or it may be like the Verizon samsung galaxy S4 which has still never been fully rooted.
Click to expand...
Click to collapse
Let's hope its the former

physwizz said:
Let's hope its the former
Click to expand...
Click to collapse
Yeah. If not, we may get lucky with 11 anyway, google was talking about user signed gsi images being flashed through standard recovery, but I haven't heard much about it in a while.

Related

key combination won't work for download mode

No matter how many times I have tried, the combination of Vol Down+Home+Power together does nothing, the phone just continues to load normally, I cannot access download mode.
My S5 (G900F) is on Android 6.0.1, which was the last software update for the phone, I would like to try 7(Nougat) but can't get anywhere near rooting or flashing.
The phone functions fine as it is, but for the last ?? Years I have used Windows Phones so android of quite alien to me but more preferable than apple. I would like to check out what's available in different builds.
anyone any ideas why it won't let me in, USB is enabled and it is in developer mode.
It can be a bit fiddly to do when you're starting off. What I normally do is press and hold in order volume down, home and then power. The boot wont start unless you press the power button so what this does is ensure that the other 2 are pressed by the time you press the power button. Only stop holding all 3 buttons down when it boots into download mode. Hope this helps
Eggleston11 said:
It can be a bit fiddly to do when you're starting off. What I normally do is press and hold in order volume down, home and then power. The boot wont start unless you press the power button so what this does is ensure that the other 2 are pressed by the time you press the power button. Only stop holding all 3 buttons down when it boots into download mode. Hope this helps
Click to expand...
Click to collapse
It doesn't work, That is what I have been doing, The Galaxy s5 screen appears, I keep holding, it disappears, vibrates and re-appears, I keep holding and it disappears again, vibrates and re-appears, it does this 5 times before I get fed up and release the power button and then the other 2, it then goes into the Samsung screen and continues loading, sometimes it goes to the "Optimising Apps" mode with the two spinning cogs before finishing the load sequence.
Thanks for the suggestion but it's not playing as it should.
comuscomp said:
It doesn't work, That is what I have been doing, The Galaxy s5 screen appears, I keep holding, it disappears, vibrates and re-appears, I keep holding and it disappears again, vibrates and re-appears, it does this 5 times before I get fed up and release the power button and then the other 2, it then goes into the Samsung screen and continues loading, sometimes it goes to the "Optimising Apps" mode with the two spinning cogs before finishing the load sequence.
Thanks for the suggestion but it's not playing as it should.
Click to expand...
Click to collapse
Weird...
Plan B - Do you have ADB installed on your computer? link: https://forum.xda-developers.com/showthread.php?t=2588979 (for windows install just in case you don't have it - if you have a Mac or Linux, you'll have to look for it).
Get familiar with ADB if not already: https://www.androidpit.com/how-to-install-adb-and-fastboot
Open command prompt (on windows), enter the command "adb reboot recovery" . It should boot into recovery.
The usual disclaimer is that I am not responsible in the unlikely event that something goes wrong to your phone or computer. Hope this helps
Eggleston11 said:
Weird...
Plan B - Do you have ADB installed on your computer? link: https://forum.xda-developers.com/showthread.php?t=2588979 (for windows install just in case you don't have it - if you have a Mac or Linux, you'll have to look for it).
Get familiar with ADB if not already: https://www.androidpit.com/how-to-install-adb-and-fastboot
Open command prompt (on windows), enter the command "adb reboot recovery" . It should boot into recovery.
The usual disclaimer is that I am not responsible in the unlikely event that something goes wrong to your phone or computer. Hope this helps
Click to expand...
Click to collapse
Thanks for the help, now we have a tale of woe. some things were best not touched, after following a fairly well detailed account of updating to Android 7 the screen filled with line after line of red text and froze.
I had to remove the battery to turn it off, now I have a brick that will not boot. I get the Samsung Galaxy S5 flash screen with a little yellow "Set Warranty Bit : kernel" at the top of the screen.
I think I had better post a new thread about this.
comuscomp said:
Thanks for the help, now we have a tale of woe. some things were best not touched, after following a fairly well detailed account of updating to Android 7 the screen filled with line after line of red text and froze.
I had to remove the battery to turn it off, now I have a brick that will not boot. I get the Samsung Galaxy S5 flash screen with a little yellow "Set Warranty Bit : kernel" at the top of the screen.
I think I had better post a new thread about this.
Click to expand...
Click to collapse
Questions that will help in assisting you: Can you still boot into download or recovery mode? What nougat ROM did you flash? What steps did you take to flash the nougat ROM? What happened?
If you can enter download mode, then you can reflash a stock ROM via odin to hopefully save your S5, you can find one on Sam Mobile. Without the right info, that is the best general advice I can give.
You can try posting a new thread to hopefully recruit more help. If you decide to do so, include the answers to the questions I have posted above. Otherwise, I am happy to attempt to assist you in recovering the functionality of your S5 on this thread.
Eggleston11 said:
Questions that will help in assisting you: Can you still boot into download or recovery mode? What nougat ROM did you flash? What steps did you take to flash the nougat ROM? What happened?
If you can enter download mode, then you can reflash a stock ROM via odin to hopefully save your S5, you can find one on Sam Mobile. Without the right info, that is the best general advice I can give.
You can try posting a new thread to hopefully recruit more help. If you decide to do so, include the answers to the questions I have posted above. Otherwise, I am happy to attempt to assist you in recovering the functionality of your S5 on this thread.
Click to expand...
Click to collapse
No, I can't get into download or recovery, I have tried with the 3 key combo and using ADB, the first still refuses to work and the ADB doesn't find the device.
Smart Switch won't connect nor will Odin.
Lineage 14-1. and open-gapps-arm-6.0-micro.
I had opened a new thread before I got your reply, how do I include your answers into that tread? "Bricked after attempted Update: Help".

Please help!

Hello everyone, from the title you've probably figured that I might be a noob and you'd be correct.
I have absolutely no idea what I'm doing. I'm trying to root and add TWRP to my phone, I've searched for a user friendly guide and this: "https://rootthedroid.com/root-leeco-le-max-2-install-twrp-recovery/" is the most user friendly guide I can find.
Something is not installing correctly and I think there are gaps in this guide, I'm pretty good at reading and following directions. I'm able to get into bootloader and Once I think I've installed TWRP the power button + volume down button does nothing when the phone is on except for take a screen shot and eventually shut down. However, when the phone is powered down, I'm able to hold the volume down + power buttons and it will eventually take me back to the bootloader screen but not to TWRP as the guide states it should.
So after this I thought I did something wrong and went to factory reset the phone.... When I initiated factory reset, that brought up the TWRP menu, so it was in fact installed onto the phone. I then continue the instructions in the guide. At the end, the power down + power button function does not work except for powering down the phone and bringing me back to the bootloader screen. I then installed the TWRP app and it still says that the device is not rooted.
I'm hoping someone can point me in the direction of a good thorough guide or please explain to me step by step how to get this thing rooted. I have x829 version and will be using primarily in Ohio if that matters. I'd also like some guidance on what ROM to choose.
Thank you for your time!!!!
boboyt said:
Hello everyone, from the title you've probably figured that I might be a noob and you'd be correct.
I have absolutely no idea what I'm doing. I'm trying to root and add TWRP to my phone, I've searched for a user friendly guide and this: "https://rootthedroid.com/root-leeco-le-max-2-install-twrp-recovery/" is the most user friendly guide I can find.
Something is not installing correctly and I think there are gaps in this guide, I'm pretty good at reading and following directions. I'm able to get into bootloader and Once I think I've installed TWRP the power button + volume down button does nothing when the phone is on except for take a screen shot and eventually shut down. However, when the phone is powered down, I'm able to hold the volume down + power buttons and it will eventually take me back to the bootloader screen but not to TWRP as the guide states it should.
So after this I thought I did something wrong and went to factory reset the phone.... When I initiated factory reset, that brought up the TWRP menu, so it was in fact installed onto the phone. I then continue the instructions in the guide. At the end, the power down + power button function does not work except for powering down the phone and bringing me back to the bootloader screen. I then installed the TWRP app and it still says that the device is not rooted.
I'm hoping someone can point me in the direction of a good thorough guide or please explain to me step by step how to get this thing rooted. I have x829 version and will be using primarily in Ohio if that matters. I'd also like some guidance on what ROM to choose.
Thank you for your time!!!!
Click to expand...
Click to collapse
You need to go for the right combination brother.....
Volume down with power button will take you to bootloader.....
For TWRP, press Volume up and power button simultaneously......
And for rooting flash magisk and you're good to go.....
Ahmad04 said:
You need to go for the right combination brother.....
Volume down with power button will take you to bootloader.....
For TWRP, press Volume up and power button simultaneously......
And for rooting flash magisk and you're good to go.....
Click to expand...
Click to collapse
This guy's got the right answer.
Please be sure to continue holding power and volume up until the words "recovery" come up on the screen otherwise it will just do a normal boot to Android.
Another method is to enable developer options (about phone and tap build 7 times), then to enable ADB, then use a PC and usb to the phone and use adb reboot recovery.
Also, if it boots to EUI ROM recovery instead of TWRP? It could be EUI ROM overwriting TWRP after flashing via fastboot.
The solution to that issue is to reboot into bootloader, flash recovery TWRP and then to either hold power and volume up to reboot into recovery or to use "fastboot boot TWRP.img" and then do reboot into recovery from there.
Why do we need to flash magisk?
kkcheong said:
Why do we need to flash magisk?
Click to expand...
Click to collapse
If you need root access.....
Ahmad04 said:
If you need root access.....
Click to expand...
Click to collapse
I root without magisk.

re-lock Bootloader

How "lock" or "relock" my samsung SM-T510 bootloader?
im getting annoyed by the message when it boots
I would like to know how to do this as well after flashing stock firmware in Odin, the option to toggle off OEM unlocking is grayed out. Any help would be awesome!
dcillusions77 said:
I would like to know how to do this as well after flashing stock firmware in Odin, the option to toggle off OEM unlocking is grayed out. Any help would be awesome!
Click to expand...
Click to collapse
You can't choose the OEM lock until you re-lock the bootloader. You do that the same way you unlocked it. But be warned, it does a factory reset also, which means you have to go through the whole setup proceedure again. BTW, it is unlocking the bootloader that causes the message, not the OEM lock. Also, do you know that you don't have to wait for that message to disappear on it own. If you tap the power button when it appears, it goes away without the delay.
lewmur said:
You can't choose the OEM lock until you re-lock the bootloader. You do that the same way you unlocked it. But be warned, it does a factory reset also, which means you have to go through the whole setup proceedure again. BTW, it is unlocking the bootloader that causes the message, not the OEM lock. Also, do you know that you don't have to wait for that message to disappear on it own. If you tap the power button when it appears, it goes away without the delay.
Click to expand...
Click to collapse
The OEM lock is grayed out. I have factory reset everything. Through Odin and device. I just want the bootloader locked again and reversing this procedure does not work. Not worried about erasing the device I've already downloaded the 2 to 3 hour 2.3GB file I pushed through Odin
dcillusions77 said:
The OEM lock is grayed out. I have factory reset everything. Through Odin and device. I just want the bootloader locked again and reversing this procedure does not work. Not worried about erasing the device I've already downloaded the 2 to 3 hour 2.3GB file I pushed through Odin
Click to expand...
Click to collapse
Did you actually read my post. OEM and bootloader locks are two entirely different things. When you first unlocked your tablet, there were two steps involved. FIRST, you had to enable developer mode and turn on OEM enable. THEN, you had to unlock the bootloader by holding the proper buttons when powering up. To relock, you have to do that in reverse. First relock the bootloader,using the same buttons you did to unlock, and then, and only then, you can disable OEM. And the second step is optional. You don't have to disable OEM to get rid of the message.
Edit: And "reversing the procedure" does work if you do it right. It is the ONLY way to relock the bootloader and I have done it. So I know it works.
reedit: OK, I just did it again on my T510. Turn the tablet off. Plug the cable into the PC but NOT the tablet. Hold both the vol up and down buttons and then plugin the cable from the PC. When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!
lewmur said:
Did you actually read my post. OEM and bootloader locks are two entirely different things. When you first unlocked your tablet, there were two steps involved. FIRST, you had to enable developer mode and turn on OEM enable. THEN, you had to unlock the bootloader by holding the proper buttons when powering up. To relock, you have to do that in reverse. First relock the bootloader,using the same buttons you did to unlock, and then, and only then, you can disable OEM. And the second step is optional. You don't have to disable OEM to get red of the message.
Click to expand...
Click to collapse
What proper buttons are you talking about? You mean in download/fastboot mode? I'll look at the da** thing again when I get home. Bout done with this samscra* sh**
dcillusions77 said:
What proper buttons are you talking about? You mean in download/fastboot mode? I'll look at the da** thing again when I get home. Bout done with this samscra* sh**
Click to expand...
Click to collapse
No I do NOT mean download/fastboot mode. Go back and research how to UNLOCK the bootloader. IT DOES NOT USE FASTBOOT. You DO NOT use fastboot to unlock Samsung devices. And "factory reset" via Odin is meaningless. You don't use Odin to unlock the bootloader either. BTW, Samsung and most other reputable tablet makers, intentionally make it hard to unlock their devices because it is a serious security risk if you don't know what you are doing. Do you know what you are doing?
lewmur said:
No I do NOT mean download/fastboot mode. Go back and research how to UNLOCK the bootloader. IT DOES NOT USE FASTBOOT. You DO NOT use fastboot to unlock Samsung devices. And "factory reset" via Odin is meaningless. You don't use Odin to unlock the bootloader either. BTW, Samsung and most other reputable tablet makers, intentionally make it hard to unlock their devices because it is a serious security risk if you don't know what you are doing. Do you know what you are doing?
Click to expand...
Click to collapse
I actually do know what I am doing as a matter of fact. I rooted all of our devices in this household including friends and family. Some of them are in my signature. You don't have to be a dbag about someone asking for help. Yes, I read your posts too, even after all your edits. I got it finally so I guess thanks for all of your generous replies to point me in the right direction. Have a nice day!
dcillusions77 said:
I actually do know what I am doing as a matter of fact. I rooted all of our devices in this household including friends and family. Some of them are in my signature. You don't have to be a dbag about someone asking for help. Yes, I read your posts too, even after all your edits. I got it finally so I guess thanks for all of your generous replies to point me in the right direction. Have a nice day!
Click to expand...
Click to collapse
I apologise for getting snappy but I was starting to get frustrated trying to point out that the OEM lock wasn't the problem and that the "buttons" did work.
Thanks Lewmur
Just wanted to pop on and say thanks lewmur, I was getting sick of not being able to update and singe I bought a Galaxy S9+ I cant root that, might as well keep them both stock and use "altered" apk install files. I was not sure if it was possible to relock the bootloader, now I know lol, so thanks.
I have a TAB S6 running Android 10. Bootloader is unlocked and OEM switch IS NOT grayed out. I went into DL mode and all I saw was the same thing as when I unlocked the TAB in the first place. Anything special I need to do to re-lock this baby.
jhill110 said:
I have a TAB S6 running Android 10. Bootloader is unlocked and OEM switch IS NOT grayed out. I went into DL mode and all I saw was the same thing as when I unlocked the TAB in the first place. Anything special I need to do to re-lock this baby.
Click to expand...
Click to collapse
relock and install full stock firmware
elliwigy said:
relock and install full stock firmware
Click to expand...
Click to collapse
Got the install firmware but How exactly do you re-lock the bootloader?
EDIT:
Got it!
Long Press!
lewmur said:
Did you actually read my post. OEM and bootloader locks are two entirely different things. When you first unlocked your tablet, there were two steps involved. FIRST, you had to enable developer mode and turn on OEM enable. THEN, you had to unlock the bootloader by holding the proper buttons when powering up. To relock, you have to do that in reverse. First relock the bootloader,using the same buttons you did to unlock, and then, and only then, you can disable OEM. And the second step is optional. You don't have to disable OEM to get rid of the message.
Edit: And "reversing the procedure" does work if you do it right. It is the ONLY way to relock the bootloader and I have done it. So I know it works.
reedit: OK, I just did it again on my T510. Turn the tablet off. Plug the cable into the PC but NOT the tablet. Hold both the vol up and down buttons and then plugin the cable from the PC. When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!
Click to expand...
Click to collapse
...Like you said, your instructions do work! But i think folk are getting confused in your last sentence...
..."When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!"
with the term " 'hold' the vol up" you use - instead of 'Long Press' the middle Volume button option on the screen!
This method by Long Pressing Volume Up button will get you to the three options screen which asks if you want to lock your Tab...
klantee said:
Long Press!
...Like you said, your instructions do work! But i think folk are getting confused in your last sentence...
..."When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!"
with the term " 'hold' the vol up" you use - instead of 'Long Press' the middle Volume button option on the screen!
This method by Long Pressing Volume Up button will get you to the three options screen which asks if you want to lock your Tab...
Click to expand...
Click to collapse
thanks it work perfect
lewmur said:
Did you actually read my post. OEM and bootloader locks are two entirely different things. When you first unlocked your tablet, there were two steps involved. FIRST, you had to enable developer mode and turn on OEM enable. THEN, you had to unlock the bootloader by holding the proper buttons when powering up. To relock, you have to do that in reverse. First relock the bootloader,using the same buttons you did to unlock, and then, and only then, you can disable OEM. And the second step is optional. You don't have to disable OEM to get rid of the message.
Edit: And "reversing the procedure" does work if you do it right. It is the ONLY way to relock the bootloader and I have done it. So I know it works.
reedit: OK, I just did it again on my T510. Turn the tablet off. Plug the cable into the PC but NOT the tablet. Hold both the vol up and down buttons and then plugin the cable from the PC. When the green screen appears, release the buttons and then press and hold the vol up till the next screen appears. IT WORKS!
Click to expand...
Click to collapse
This works for SM-T870 as well FOLLOW BOLD TEXT of above, just did it. Stupid easy THANK YOU SO MUCH LewMur

[Guide] How to root N20

How to root N20 (N985F/N986B/N9860)
WARNING!
Before you root your device you must be aware that
This will void warranty.
As of now you will lose Samsung Pay and Samsung Pass forever if you root once, even unrooting won't help.
There are many features stop working when you unlock bootloader other than S pay/Pass like Samsung Health, Secure Folder, Galaxy Watch pairing issue, Issue connecting old gear watch (S3 or earlier), Google Pay etc but some ROMs are patched for all these mentioned features, you can use custom ROM or patch it yourself for stock ROM. Still you may trouble using some bank apps and these may fixed by adding these apps to Magisk Hide
There may be some knox features there which you may not able to use but I can't list those as I never used. Just Google It
Patched featurs are working today when writing this, No idea if it may stop working next moment/tomorrow or later
Also to note, once you root, you can't go back to "pre-rooted" state completely. It is one way!
OTA won't work once you root device.
ROOT with caution.
You can unroot & Relock bootloader after flashing stock firmware, but still your warranty flag remain 0x1 and most of countries it still voids warranty. Also after unrooting & relocking bootloader, some knox features never work again.
How to Unlock Bootloader
Follow below four steps to ulock the bootloader
1.Enable Developer Option
Open the Settings app on your Galaxy device.
Choose About > Software Information.
Now tap on Build Number 7 times to enable the developer option.
You’ll get a message “You’re now a developer.”
Now Developer option has been enabled.
2: Enable OEM Unlock
Go to the Settings app again on your device.
Navigate to the Developer option.
Enable the toggle next to OEM Unlocking.
Tap YES to turn on the confirmation dialog box.
3: Boot Your device to Download Mode
While device is booted → Connect device to PC → Select to Restart → As soon as device screen turns off, Press and hold Volume Up + Volume Down simultaneously OR In case device is powered off Press and hold Volume Up + Volume Down simultaneously and connect your device to the PC via a USB Cable.
You can see the warning message on your device and release the pressed keys.
Finally, press the Volume Up key once, and you will be booted into Download Mode.
4: Unlock Bootloader
Once device booted into Download Mode, you will see option to long press Volume up to unlock bootloader,Now, press and hold the Volume Up key for a few seconds., Here, you’ll get a confirmation whether you are sure to proceed.
Use the Volume Up button to reply to the confirmation.
This will erase all the data on your device and unlock the bootloader.
Once completed, your device will automatically boot up to the OS.
Now you have successfully unlocked the bootloader
How to root
Instructions for stock non rooted ROM​
Use either samfirm.js, Frija, or Samloader to download the latest firmware zip of your device directly from Samsung servers.
Unzip the firmware and copy the AP tar file to your device. It is normally named as AP_[device_model_sw_ver].tar.md5
Install Magisk apk
Press the Install button in the Magisk card
Choose “Select and Patch a File” in method, and select the AP tar file
When done, copy patched file to PC
Reboot to download mode. Open Odin on your PC, and flash magisk_patched.tar as AP, together with BL, CP, and CSC (NOT HOME_CSC because we want to wipe data) from the original firmware.
Your device should reboot automatically once Odin finished flashing. Agree to do a factory reset if asked.
Install the Magisk app you’ve already downloaded above and launch the app. It should show a dialog asking for additional setup.
Let the app do its job and automatically reboot the device. Voila!
Upgrading the OS​Once you have rooted your Samsung device, you can no longer upgrade your Android OS through OTA. To upgrade your device’s OS, you have to manually download the new firmware zip file and go through the same AP patching process written in the previous section. The only difference here is in the Odin flashing step: do NOT use the CSC tar, but instead use the HOME_CSC tar as we are performing an upgrade, not the initial install.
Important Notes​
Never, ever try to restore either boot, recovery, or vbmeta partitions back to stock! You can brick your device by doing so, and the only way to recover from this is to do a full Odin restore with data wipe.
To upgrade your device with a new firmware, NEVER directly use the stock AP tar file with reasons mentioned above. Always patch AP in the Magisk app and use that instead.
Never just flash only AP, or else Odin may shrink your /data filesystem size. Flash AP + BL + CP + HOME_CSC when upgrading.
PS : It is strongly recommended to make EFS backup once you root device and save to safer place like on cloud or PC
For TWRP : Read here
Credit : topjohnwu Guide part taken from Origin guide here
Happy to see you here on Note 20 Ultra Dr. Ketan my bro.
dr.ketan said:
Here is Patched kernel to root N986B Note20 Ultra (N986B_TH3)
Unlocking Bootloader
This is a basic step to root device. Go to settings - about phone - Software Information - tap multiple times on "Build number" - This will open developer option.
Now in settings at the end, you will have new option "Developer options" - look for OEM unlocking - Enable it.
(PS : If you don't see this option then you may need to wait up to 7 days or more to appear or may be on some operator you will get it never. Without this option you can not root your device, sorry!)
Once you have enable OEM unlock option, switch off your device and reboot to download mode.
To put device in download mode - Press Volume Up & then Press Volume Down (Keep holding both) and connect device to PC with USB cable
When device start to download mode,long press volume up to unlock the bootloader. This will wipe your data and automatically reboot
Now let finish setup and again enable developer options (as said above), and confirm that the OEM unlocking option exists and grayed out!
If it is not then you can not root device!
Once you see this option and greyed out, you are ready to flash custom binary and root your device
Installation (Flashing) custom binaries
1. Switch off the device and reboot to download mode (As said earlier) and select volume up to continue
2.Download Magisk Patched Kernel and extract on PC
Open Odin as administrator (Above downloaded Zip have included Odin)
Select Roor_N986*.tar.md5 file (you have downloaded & Extracted on PC in above instructions) for AP tab of Odin
3.From Odin option - uncheck Auto Reboot option
4.Now start flashing and wait till it finish. When you see a PASS sign on Odin, disconnect device.
Now magisk is successfully finished but yet you need to follow instructions below.
Factory reset
After disconnecting device, keep holding Vol down + Side key to exit from download mode.
Here is very important - when you see device reboot As soon as the screen turns off, immediately press Volume Up + Side Key to boot to recovery partition. continue pressing the volume up button until you see the stock recovery screen.
In the stock recovery menu, use volume buttons to navigate through menus, and the power button to select the option. Select Wipe data/factory reset to wipe the data of the device.
Select Reboot system now
The device will automatically reboot for the first time it boots. This is completely normal and done by design.After the device is booted up, do the usual initial setup. You shall see Magisk Manager in your app drawer; if not, Download Magisk Manager and manually install the APK you downloaded and continue to the next step.
Magisk Manager will ask to do additional setups. Let it do its job and the app will automatically reboot your device. (You must needed to connected to internet)
Status : Untested
Click to expand...
Click to collapse
Many thanks Ketan. i was hoping to see this
Moderators can we sticky this??
Is there, and will you or anyone work on the Hong Kong SM-9860 Root option ( which is Snapdragon )
inningsdefeat500 said:
Is there, and will you or anyone work on the Hong Kong SM-9860 Root option ( which is Snapdragon )
Click to expand...
Click to collapse
Is your device bootloader is unlocked? If yes then
Inbox me your Telegram ID for easy communication
dr.ketan said:
Is your device bootloader is unlocked? If yes then
Inbox me your Telegram ID for easy communication
Click to expand...
Click to collapse
Ketan bhai, still waiing for it but ur communication on this is makes me happy
Checking - https://www.sammobile.com/samsung/galaxy-note-20-ultra-5g/firmware/#SM-N986B
Its this version - https://www.wondamobile.com/samsung...0-lte-mobile-phone-sim-free-and-unlocked.html
So yet to come
inningsdefeat500 said:
Ketan bhai, still waiing for it but ur communication on this is makes me happy
Checking - https://www.sammobile.com/samsung/galaxy-note-20-ultra-5g/firmware/#SM-N986B
Its this version - https://www.wondamobile.com/samsung...0-lte-mobile-phone-sim-free-and-unlocked.html
So yet to come
Click to expand...
Click to collapse
Both are different in your links
First link - global exynos
Second link - Snapdragon China
dr.ketan said:
Both are different in your links
First link - global exynos
Second link - Snapdragon China
Click to expand...
Click to collapse
The first link was to show what firmwares are out already for Note 20, meaning the North American and HK Snapdragin are yet to release
Will it work on SM-N986UZKFXAA?
Androidwarrior said:
Will it work on SM-N986UZKFXAA?
Click to expand...
Click to collapse
Mostly U version is Snapdragon with unlock bootloader and not rootable. Confirm first if you have unlocked bootloader.
Also last 3 digit of firmware is weird. Which device is this? Can you post screenshot of phone info?
dr.ketan said:
Mostly U version is Snapdragon with unlock bootloader and not rootable. Confirm first if you have unlocked bootloader.
Also last 3 digit of firmware is weird. Which device is this? Can you post screenshot of phone info?
Click to expand...
Click to collapse
Yes. https://www.samsung.com/us/business...ote20-ultra-5g-512gb-unlocked-sm-n986uzkfxaa/
https://www.bestbuy.com/site/samsun...unlocked-mystic-black/6420842.p?skuId=6420842
Androidwarrior said:
Yes.
Click to expand...
Click to collapse
What I guess, here unlocked means sim unlocked NOT bootloader.
Some people might need clarification. An "unlocked" phone is not the same as a phone with an unlockable bootloader. If it's the same pattern from the past several years of Note releases. All of the snapdragon US versions won't have the ability to have their boot loaders unlocked, therefore a root. This root method most likely applies to the non-US Exynos versions. If you live in the US, and ordered your phone through Samsung or any carrier, it will be the snapdragon version. I hope I'm proven wrong.
dr.ketan said:
Here is Patched kernel to root N986B Note20 Ultra (N986B_TH3)
Unlocking Bootloader
This is a basic step to root device. Go to settings - about phone - Software Information - tap multiple times on "Build number" - This will open developer option.
Now in settings at the end, you will have new option "Developer options" - look for OEM unlocking - Enable it.
(PS : If you don't see this option then you may need to wait up to 7 days or more to appear or may be on some operator you will get it never. Without this option you can not root your device, sorry!)
Once you have enable OEM unlock option, switch off your device and reboot to download mode.
To put device in download mode - Press Volume Up & then Press Volume Down (Keep holding both) and connect device to PC with USB cable
When device start to download mode,long press volume up to unlock the bootloader. This will wipe your data and automatically reboot
Now let finish setup and again enable developer options (as said above), and confirm that the OEM unlocking option exists and grayed out!
If it is not then you can not root device!
Once you see this option and greyed out, you are ready to flash custom binary and root your device
Installation (Flashing) custom binaries
1. Switch off the device and reboot to download mode (As said earlier) and select volume up to continue
2.Download Magisk Patched Kernel and extract on PC
Open Odin as administrator (Above downloaded Zip have included Odin)
Select Roor_N986*.tar.md5 file (you have downloaded & Extracted on PC in above instructions) for AP tab of Odin
3.From Odin option - uncheck Auto Reboot option
4.Now start flashing and wait till it finish. When you see a PASS sign on Odin, disconnect device.
Now magisk is successfully finished but yet you need to follow instructions below.
Factory reset
After disconnecting device, keep holding Vol down + Side key to exit from download mode.
Here is very important - when you see device reboot As soon as the screen turns off, immediately press Volume Up + Side Key to boot to recovery partition. continue pressing the volume up button until you see the stock recovery screen.
In the stock recovery menu, use volume buttons to navigate through menus, and the power button to select the option. Select Wipe data/factory reset to wipe the data of the device.
Select Reboot system now
The device will automatically reboot for the first time it boots. This is completely normal and done by design.After the device is booted up, do the usual initial setup. You shall see Magisk Manager in your app drawer; if not, Download Magisk Manager and manually install the APK you downloaded and continue to the next step.
Magisk Manager will ask to do additional setups. Let it do its job and the app will automatically reboot your device. (You must needed to connected to internet)
Status : Untested
Click to expand...
Click to collapse
Hi thanks for the rooting instructions. I would like to know if you or anyone has gotten the option for s pen pointer under air commands in your note advanced settings? Jimmy is promo does but every other youtube doesnt have that option so im wondering what note 20 has it and what firmware? Anyone feel free to chime in
If you have rooted the Note 20 ultra 5g (Germany), can i start it normally or do you have to hold a key combination?
Conan179 said:
If you have rooted the Note 20 ultra 5g (Germany), can i start it normally or do you have to hold a key combination?
Click to expand...
Click to collapse
If you root with Method mentioned in OP, you should able to boot with root without using combo keys
I coming from the note 9.
If it's rooted, how do I update it?
(Switch from csc to talk (Vodafone DE to DBT) I know that has nothing to do with this topic )
Conan179 said:
I coming from the note 9.
If it's rooted, how do I update it?
(Switch from csc to talk (Vodafone DE to DBT) I know that has nothing to do with this topic )
Click to expand...
Click to collapse
Plz post your question to appropriate forum
ok a new topic, "how do i update a rooted note 20 ultra 5g" Ok I'll do it as soon as I have mine.
no one has the S pen pointer option?
Also have any of you signed up for beta 3.0 android 11 for the s20? Im guessing you guys have early access because the note 20 isnt even out yet.

How to Unlock Bootloader Galaxy A51

Please make back up data first, because unlock bootloader is formatting data and erase all your file
Unlock Bootloader Galaxy A51:
1. Setting >> About Phone
2. Software Information
3. Tap 7 times on build number, to enable developer options.
4. Tap back 2x.
5. Sroll down, tap developer options.
6. Enable (turn on) OEM Unlocking.
7. Enable (turn on) USB Debugging.
8. Turn off the phone.
9. Press and hold Vol Up + Vol Down, and connect USB Cable to PC / laptop.
10. Entering download mode.
11. Long press vol up
12. Press vol up again to Unlock Bootloader.
13. Factory reset
14. Welcome screen
15. Done.
Credit
@redymedan
Hello, after step 12 I get a green screen with some red letters above that say "error verifying vbmeta..." and now I can not restart the phone, any solution?
SOLVED
Nachopincha said:
Hello, after step 12 I get a green screen with some red letters above that say "error verifying vbmeta..." and now I can not restart the phone, any solution?
SOLVED
Click to expand...
Click to collapse
Just follow step by step in video
When I enter the blue screen before step 11, I just get a message saying "Downloading... do not turn off target" and it never goes away.
On my US model, I only get to step 5. Nothing after that. No OEM Unlock. Not sure who is blocking it; AT&T or Samsung or Qualcomm. So this might work in international models, but does not work on mine.
US model A51 5G
Model Number SM-A516U1
Brian D said:
On my US model, I only get to step 5. Nothing after that. No OEM Unlock. Not sure who is blocking it; AT&T or Samsung or Qualcomm. So this might work in international models, but does not work on mine.
US model A51 5G
Model Number SM-A516U1
Click to expand...
Click to collapse
US Model can't be unlocked
I'm stuck on the boot logo and don't know what to do
mohaibr said:
I'm stuck on the boot logo and don't know what to do
Click to expand...
Click to collapse
I dont know what you are doing to your phone
You can flash via ODIN and Stock ROM SAMSUNG
You can see how to flash via ODIN in Youtube
Nachopincha said:
Hello, after step 12 I get a green screen with some red letters above that say "error verifying vbmeta..." and now I can not restart the phone, any solution?
SOLVED
Click to expand...
Click to collapse
How do you solved it
can you share step by step
hey dude can you Help me
my device is showing imei 00000000 and cannot remember original csc version also bootloader cannot unlocked after pressing long vol + button in download mode it always say unlock bootloader when i did itjust reboot and factory rested and still no oem option grey out
my us model s515dl boots to a screen with green text saying entering fastboot and shows up under fastboot devices..can we work with that?
Good afternoon, can you help? And actually, what is the problem with a friend's child blocked Galaxy A51, tried to apply all the magic failed, since the developer mode is disabled and I can't turn on usb debugging, I've already tried everything to put a custom recovery and still in no way (to remove two files with blocking using Aroma fm) The path through Samsung unlock also disappears, since this beast went into flight mode after rebooting and does not turn anything on. I have already tried the very last option through attiny and otg password reseller, but it has already reached 4 minutes for one password and this method has also disappeared. I also sent it to ADB through the regular recovery, but the commands are very limited, and I didn't find anything useful either
irbis36 said:
Good afternoon, can you help? And actually, what is the problem with a friend's child blocked Galaxy A51, tried to apply all the magic failed, since the developer mode is disabled and I can't turn on usb debugging, I've already tried everything to put a custom recovery and still in no way (to remove two files with blocking using Aroma fm) The path through Samsung unlock also disappears, since this beast went into flight mode after rebooting and does not turn anything on. I have already tried the very last option through attiny and otg password reseller, but it has already reached 4 minutes for one password and this method has also disappeared. I also sent it to ADB through the regular recovery, but the commands are very limited, and I didn't find anything useful either
Click to expand...
Click to collapse
Try to flashing stock firmware
I am stuck on Entering Fastboot...
bootloader not opening please help me solve the problem

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