yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Advantages of rooting:

Once you root your device you can install flashable zip files and custom ROMs.

You can backup all your apps and data using Titanium Backup.

You can customize your device according to your needs by deleting unwanted system apps and using Deathly Adiutor to modify the kernel.

View attachment 4802662

Disadvantages of Rooting:

Once you root your device, your device warranty will be void.

After rooting yourndevice may become unstable.

You may not be able to upgrade OTA in the future.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
This method should root your Samsung Galaxy SM-A205X (all models except SM-A205U and SM-A205DL).

It was developed for the U2 bootloader (June 2019 firmware)

This method does not work for the a20s (A207X)

This method can be used to root other Samsung phones including the a20e( post#77 post#180, post#256)

Quick Root and TWRP for A205xx

https://xdaforums.com/galaxy-a20/how-to/guide-quick-root-twrp-galaxy-a20-t4069423

You'll find it much quicker.

Repair Firmware

This site contains

1. Full repair firmware

2. Combination firmware

3. Fix dm verify

4. Root instructions and unpatched boot images

https://www.full-repair-firmware.com/search?q=A20

More firmware (some are even prerooted)

https://www.needromarab.com/1/122/SAMSUNG

Samfirm Tool for really fast downloads

https://samfirmtool.com/samfirm-v0-5-0
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Mine

Discussion page.

https://xdaforums.com/t/samsung-galaxy-a20
[Samsung Galaxy A20 Guides, News, & Discussion] jajk:
On the lighter side of rooting....

From the A30 forum:

https://xdaforums.com/galaxy-a30/how-to/hide-bootloader-warning-unlocked-t3954589

Works for A20 too;)
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Another reason to merge. This is a procedure for removing those annoying error messages on startup screens.
[Samsung Galaxy A20 Guides, News, & Discussion] jajk:
A205U owners complaining about not being able to oem unlock bootloader might want to study this:

https://xdaforums.com/android/software/patched-odin-3-13-1-t3762572

It looks like a way to switch to another unlockable firmware version.
[Samsung Galaxy A20 Guides, News, & Discussion] Dan225:
Please, need magisk_patched.img file for SM-A205F.
[Samsung Galaxy A20 Guides, News, & Discussion] jhjhjhjhjhjh:
Yeah tried that option. Samsung has our model on a bootloader 2, means our device won't accept flashing from any other firmware but the original non-modded firmware only.

Tried prince Odin,patched Odin all versions, tried Heimdall etc..

Error is ...boot secure check failed..

I've tried to flash firmware a205G only with fail error Everytime.

Psa I've had my a205u for 10 days no OEM unlock option.

Main reason why I'm not buying another Samsung phone.

Bought a Moto g7 and the g7 power ..I rooted both within 10 min from purchase. Motorola emailed me my bootloader unlock code . Fastboot flashed and Bam good to go. I'm done .
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Maybe Samsung has an issue with US tariffs.
[Samsung Galaxy A20 Guides, News, & Discussion] jajk:
Samsung have certainly turned an essentially good piece of hardware into a pile of rubbish with mega-invasive bloatware. I have barely started to strip back the garbage and the phone is springing to life. Need a working TWRP before getting too keen as the path back to functionality is long and arduous without a way of restoring partitions if anything gets screwed up. Here is what the phone looks like with Google Play junk removed plus a bit of Samsung bloat removed - not everyone is ready to kick the Alphabet addiction I know, but it has become an absolute monster that eats battery and cpu cycles....apart from the privacy invasion side of it:eek:

I am finding that many unknown, non-visible apps with innocent sounding names or "security" inferred in the name are likely to be ad server or data mining software - I got wise to this with my first and last Xiaomi device;)
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I used titanium backup first. Now I'll debloat.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I find it strange that the US version is the only one that can't unlock the bootloader.

The rest of us are all unlocked and rooted.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Mine is locked to Vodafone but I can still unlock the bootloader.
[Samsung Galaxy A20 Guides, News, & Discussion] burningcreation:
Same here.

Did you mod your param.tar (to change the warnings at startup) file by any chance? Would you be able to attach it at all? I was gonna download the firmware but it's taking 9 hours.

Thanks.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I've downloaded the 2 pics and I modified one to contain my name.

I will try the mods shortly.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
That's one way to drive away customers.
[Samsung Galaxy A20 Guides, News, & Discussion] jhjhjhjhjhjh:
Yep. Drove me away. I said the same thing. Samsung wants to be apple. In the US they lock us out.

Motorola skytel pagers, Motorola walkie talkies.

I have chosen my preferred phone oem. Hello Moto!!

See Motorola cares about the bottom line. Bottom line give the customers what they want . Loving my Moto G7power.

Rooted in 10min and flashed the Best buy version firmware. If your in the US don't buy a Samsung phone.
[Samsung Galaxy A20 Guides, News, & Discussion] jajk:
Having a Lenovo tablet put me off buying a Moto again (have a very long lived Moto G 2013) but if Lenovo have the sense not to do to Motos what they do to their own branded phones, they are ahead of companies like Samsung who want to progress to a closed platform like Apple. I too have crossed Samsung off the list of next phones to buy:(

Back on topic.......has anyone updated Magisk to latest version from the previous version that they rooted with?
[Samsung Galaxy A20 Guides, News, & Discussion] Sanny45:
Yup taken video help also exactly followed same
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
This bit is vital.

7. Rename magisk_patched.img to boot.img

9. Use zarchiver to compress boot.img to boot.tar
[Samsung Galaxy A20 Guides, News, & Discussion] Sanny45:
Tried not worked any way to bypass security check
[Samsung Galaxy A20 Guides, News, & Discussion] mustardman29:
Maybe this is a stupid question but will rooting allow me to enable all the Network/Bearer (S/W Enabled) frequencies? Or perhaps I need a custom ROM as well? Or maybe it is like a SIM lock where it's embedded in the hardware and needs a code or something?
[Samsung Galaxy A20 Guides, News, & Discussion] Rootmeforbtc:
exact same happened to me.

Compressed correctly as above

edit : Fixed by just dragging original AP_A207F file into AP on Odin and putting into download mode
[Samsung Galaxy A20 Guides, News, & Discussion] very_cool:
UPDATE: moving message to a newer thread as suggested here before

Original message :

Happy holidays. Not sure since I use Odin and stuff for the very first time, maybe someone could give an advice..

Not really, I am unable to root my SM-A205FN (no bootloader lock). I followed precisely the Magisk patch part, I used A205FN samfirmware as a source image. This is what I get, no exceptions:

<ID:0/004> Added!!
<ID:0/004> Odin engine v(ID:3.1303)..
<ID:0/004> File analysis..
<ID:0/004> Total Binary size: 28 M
<ID:0/004> SetupConnection..
<ID:0/004> Initialzation..
<ID:0/004> Get PIT for mapping..
<ID:0/004> Firmware update start..
<ID:0/004> NAND Write Start!!
<ID:0/004> SingleDownload.
<ID:0/004> boot.img
<ID:0/004> RQT_CLOSE !!
<ID:0/004>
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/004> Removed!!

Notes: I used windows LZ4 command line since publicly available ZArchiver APK can’t work with it (0.8). Bricked once, so fun, but fixed by flashing samfirmaware BL. Sadly no success with root, can’t use stock...
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
What is your firmware date
[Samsung Galaxy A20 Guides, News, & Discussion] very_cool:
Android security patch level

June 1 2019

Security software version

SMR Jun-2019 Release 1
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Now you can install recovery and try some GSIs
[Samsung Galaxy A20 Guides, News, & Discussion] very_cool:
I am trying to install LineageOS 17 unofficial IMG

I have TWRP bootlooping recovery (no system working)

This recovery is installed with Odin AP flash from TWRP + Magisk patched boot tar

The problem is: TWRP Flash is not working.

---------- Post added at 10:42 PM ---------- Previous post was at 10:24 PM ----------

E.g. i can flash system with success using TWRP button.

Reboot to system causes bootlooping.

After flashing IMG to system TWRP warns before reboot: "No OS is installed!..."

What a..
[Samsung Galaxy A20 Guides, News, & Discussion] very_cool:
I cannot boot to custom roms on my A20. Only stock rom works.

- Lineage 16, 17

- Resurrection Remix

- Hydrogen

- Bootleggers

These didn't help:

- https://xdaforums.com/android/software/universal-dm-verity-forceencrypt-t3817389

- using dd to zero 'misc' dev in soc

- https://xdaforums.com/galaxy-s9/how-to/one-ui-2-beta-rooting-installing-twrp-t4012961/page2
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Instructions here

https://xdaforums.com/showpost.php?p=80184282&postcount=2
[Samsung Galaxy A20 Guides, News, & Discussion] very_cool:
Thanks
[Samsung Galaxy A20 Guides, News, & Discussion] Joker5844:
Is the SM-A205U model still unrootable?
[Samsung Galaxy A20 Guides, News, & Discussion] Deluriane:
Yes :fingers-crossed:
[Samsung Galaxy A20 Guides, News, & Discussion] Soulstace:
Hello, I'm the owner of a galaxy sm-a207m, and everytime I've tried to root this phone (bootloader is unlocked) I get a blue screen with red text at the top saying "Boot check failed" then some wording to take it to a repair firm, this is fixed by loading stock firmware through Odin but so far rooting has been a nightmare, was wondering if there's a fix for this?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
The method in post #4 should work for most Samsung phones.
[Samsung Galaxy A20 Guides, News, & Discussion] Soulstace:
Can you give me the link to this post? Just wanna make sure I'm seeing the right one
[Samsung Galaxy A20 Guides, News, & Discussion] fire_of_mind:
C'mon, posts are numbered... Right upper corner of a post...

Wysłane z mojego MI 5 przy użyciu Tapatalka
[Samsung Galaxy A20 Guides, News, & Discussion] Soulstace:
I'm not seeing a number at the right upper corner
[Samsung Galaxy A20 Guides, News, & Discussion] fire_of_mind:
Sry, on tapatalk it is. If you use browser it's on left upper corner.

Wysłane z mojego MI 5 przy użyciu Tapatalka
[Samsung Galaxy A20 Guides, News, & Discussion] Soulstace:
Does it matter if Odin restarts my phone or not?
[Samsung Galaxy A20 Guides, News, & Discussion] Soulstace:
This is the image that I get no matter what Method i try (Yes the Odin Tool views it as passed, Auto-Reboot turned off, phone is OEM Unlocked.

[IMG="Boot.Img"]https://ibb.co/gW43kSr[/IMG]
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Which method did you follow?
[Samsung Galaxy A20 Guides, News, & Discussion] Soulstace:
I followed both your method, and several other methods that did not work
[Samsung Galaxy A20 Guides, News, & Discussion] janga9:
How do I check if I have U2 or U3. I bought my phone in early october, and tried to root but failed, and had to reflash stock, but I left the bootloader unlocked. I have had an update on offer since early november ish.

About phone says:

ASKS v2.1.0

ADP v2.0

SMR Oct-2019 Release 1

Android security patch level: 1 October 2019
[Samsung Galaxy A20 Guides, News, & Discussion] butchieboy:
You just answered your own question. Go to about phone/software, your build number will say U2ASKS or U3ASKS
[Samsung Galaxy A20 Guides, News, & Discussion] janga9:
Thanks so much man, legend :D
[Samsung Galaxy A20 Guides, News, & Discussion] th3legend:
Root and magisk safety net

Hey everyone after a week of fiddling and life happening, I got this working on 205w. Installed with gsi Aosp q. Yeesh they don't make it like they used to...I remember the days with my op1 and Nexus 5 where it was run some adb and blamo done..

Anyone test this right after they rooted with stock to see if basic integrity passes on safteynet? My rootbeer sample passes but can't get a pass on safety net via the magisk safteynet checker.
[Samsung Galaxy A20 Guides, News, & Discussion] arpio:
It's probably because of the fingerprint. Check this magisk module https://xdaforums.com/apps/magisk/module-magiskhide-props-config-t3789228

Thats my fingerprint:

samsung/a20cs/a20:9/PPR1.180610.011/A205WVLU3ASK2:user/release-keys

Security patch date: November 1, 2019
[Samsung Galaxy A20 Guides, News, & Discussion] th3legend:
Hey thanks ya I wish I had that error but I am having basic integrity fail as well which won't be the fingerprint...looks like you got it passing though so that's nice to see...hmmmm continuing to keep looking
[Samsung Galaxy A20 Guides, News, & Discussion] arpio:
I have rooted and custom kernel but stock rom. I remember having same issue on my older device with gsi when I used Magisk beta channel. Also make sure Magisk and Magisk manager both up to date or try reflash it.
[Samsung Galaxy A20 Guides, News, & Discussion] th3legend:
Thanks ya tried to reflash reinstall rehide all that ...reinstall aosp10 and such...I think it actually just might be something in the gsi failing basic integrity. I threw a request on that thread as I saw some others post about it and not receive a reply...in the meanwhile I'm looking for a diff gsi to see if that'll work
[Samsung Galaxy A20 Guides, News, & Discussion] ossage:
Root is only for one time

Help me, I manage to root an A20e, but when to boot again, the patched boot won't work, phone shows "Only official released binaries..." message and won't boot.

When reflash original boot, everything is stock, but root gone.

I went through OP steps. I tried both way - to let magisk to modify recovery or not.

When in rooted state, I tried to manually remove VK components, tried to remount magisk links, but seems not to be successful: eg. libs are in their place after flashed reboot.

What do I miss? What happens during the patched boot - while phone is rooted? How to stop that to screw the phone, don't let it to render unbootable?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
It should work this way. Some a20e users have reported that it works.

Search this thread for a20e
[Samsung Galaxy A20 Guides, News, & Discussion] samsald:
Hello, has anyone tried to root with the January update?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Yes
[Samsung Galaxy A20 Guides, News, & Discussion] samsald:
Could you tell me what method you used?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I haven't done it personally because I'm still on June but others have done it.

This method should work.
[Samsung Galaxy A20 Guides, News, & Discussion] chuyin123:
a20s

this guide can be used with a SM-A207M (galaxy a20s) ?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
This guide should work with any Samsung phone.

You can't take my boot.img because it's only for a specific phone.
[Samsung Galaxy A20 Guides, News, & Discussion] chuyin123:
And how do i know which U (U2, U3, U4) i have?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Just follow this method.

U2 U3 U4 are only for the quick method.

Just download the correct firmware
[Samsung Galaxy A20 Guides, News, & Discussion] chuyin123:
Sorry if i keep bothering

But i still dont understand a few things, it says exact firmware and date, it mean security patch date or install date(??? Cause i installed mine late december and is a november patch according to samsung page, how do i know the exact firmware? Cause i googled mine and there are alot of them and i dont know what to do
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
security patch date must be the same as yours.

check settings - about this phone for the exact same firmware number (build number)
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
Search your firmware on this page:

https://samfrew.com/model/SM-A207M/

You can choose a region and a country.

Regards
[Samsung Galaxy A20 Guides, News, & Discussion] chuyin123:
This is ok???? Im from mexico and that firmware is from bolivia
[Samsung Galaxy A20 Guides, News, & Discussion] chuyin123:
And i cant find a security patch octuber 1 2019
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
I think this is your firmware:

https://samfrew.com/download/Galaxy__A20s__/4cur/MXO/A207MUBU1ASK1/A207MOWO1ASK1/

Regards
[Samsung Galaxy A20 Guides, News, & Discussion] chuyin123:
Ok, im downloading that firmware, wish me luck, in case of error and stuff, how do i fix it?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Flash the original firmware into each slot

I added that to the instructions
[Samsung Galaxy A20 Guides, News, & Discussion] tigresa8821:
Hi, is this guide still working to root with the November U4 patch? and suddenly the mobile enters brick, can the mobile be revived by installing Odin the firmware that was downloaded from the link?
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
Hi.

Yes, the phone can be revived. You need to be able to put the phone in download mode. If you succeed at that then you can flash (with Odin) the five parts of the firmware into each slot.

Regards
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Make sure you follow the steps precisely.
[Samsung Galaxy A20 Guides, News, & Discussion] tigresa8821:
Thank you, ready, already successfully rooted A20 205 G with the guide and this video that is very easy to follow:

https://www.youtube.com/watch?v=Vuhwt2tEGl8
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Did it work?
[Samsung Galaxy A20 Guides, News, & Discussion] chuyin123:
Im still not sure if i should do it or not, im afraid of a brick or something like that:crying::crying: so not yet, but i have everything downloaded:(:(
[Samsung Galaxy A20 Guides, News, & Discussion] LeonardoGC:
If you follow exactly the steps you will successfully root your phone; the first time that I rooted the Galaxy A20 I didn't find any problems only a minor difficulty to unlock the bootloader.

Regards
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Good news.

I added that video to the instructions.

The next step for you is TWRP
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
There are 2 videos in the instructions now.
[Samsung Galaxy A20 Guides, News, & Discussion] tigresa8821:
What TWRP should I use and what are the steps I should follow?
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
https://xdaforums.com/galaxy-a20/development/recovery-twrp-3-3-1-0-galaxy-a10-exynos-t4013481
[Samsung Galaxy A20 Guides, News, & Discussion] 7wells:
[MENTION=5440376]physwizz[/MENTION] and others

How do I find out which bootloader version my A20e has? (U1, U2, U3, U4 etc.)

Does data encryption of internal storage and of external SD card work after rooting?

Thank you!
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
U2 U3 etc applies to the 205xy models.

Yes encryption still works
[Samsung Galaxy A20 Guides, News, & Discussion] 7wells:
How can a user check the version of the bootloader of his Samsung (A20/e) device?

Can TWRP decrypt the encrypted partitions (internal and external SD card)? Where should dm-verity/force-decryption come into play? Would I need that?

I would like to root my A20e and have TWRP as custom recovery for backup and restore purposes and for flashing a custom kernel to fake Knox 0x0. Would safety-net pass? Would I have to register my device ROM with Google, as I remember is necessary for custom ROMs?

Sorry if this gets too OT. If it does, please let me know, so I can add a new thread for these questions if necessary. Thank you.
[Samsung Galaxy A20 Guides, News, & Discussion] 7wells:
[MENTION=5440376]physwizz[/MENTION]

How is the "Protected by Knox" message on the boot screen affected by rooting? Will it be gone or replaced after rooting and tripping Knox?

Would the official message be restored while rooted if a custom kernel was in place that fakes Knox 0x0?

[MENTION=5440376]physwizz[/MENTION]

My A20e does not show that option. I started it the first time after unboxing, with no SIM card and no WiFi connected. The date (never updated) is a day in March 2019.

EDIT:

I then even set the date back by 4 weeks and rebooted the phone.

Still, no OEM unlocking option available in the developer options (not even greyed out).

Phone info:

One UI 1.1

Android 9

Baseband ...ASF3

Kernel 4.4.111-16308935

Buildnumber ...ASG1

SE enforcing ..._0004

Knox version 3.3 API level 28 TIMA 4.1.0

Provider ...XKN DBT (unbranded)

Security patch Jul-2019 Release 1
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Currently there is no twrp for the a20e

Perhaps you don't need the OEM unlocking option.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
This might help.

Possible TWRP.

https://unofficialtwrp.com/galaxy-a20e-sm-a202fd-root-twrp/
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
[MENTION=7977621]ossage[/MENTION]

Congratulations.

Would you be able to post your boot.img for others to use?

If you TAR it then Zip it, the file size will be ok to post.

[MENTION=10196823]7wells[/MENTION] might be able to use it.
[Samsung Galaxy A20 Guides, News, & Discussion] 7wells:
Yes, that sounds promising. Since the A20e is actually my spouse's new phone she now has in daily use, I am hesitant to trip Knox before there is a way to fake it so at least that Samsung Health stuff works for her Gear S3 etc. From my S7 rooting experiences I know that it was quite complicated to achieve that.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
If an app doesn't like root, just add it to Magisk Hide and it will assume the phone is intact.
[Samsung Galaxy A20 Guides, News, & Discussion] ossage:
The attachment contains a patched boot.img origiates from AP_A202FXXU2ASJ1_CL17040470_QB26500771_REV00_user_low_ship_meta_OS9.tar
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Excellent.

This should help a20e users who are having difficultly rooting.
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
[MENTION=7977621]ossage[/MENTION]

There is a TWRP here that might work.

https://xdaforums.com/galaxy-a20/development/a202f-galaxy-a20e-t4024775
[Samsung Galaxy A20 Guides, News, & Discussion] Wire1122:
not working
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
I don't know.
[Samsung Galaxy A20 Guides, News, & Discussion] Wire1122:
I Havel test it and not work
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
Oh

What happens when you try it
[Samsung Galaxy A20 Guides, News, & Discussion] davips:
I managed to root a A205GUBU4ASK2, but after flashing TWRP it started complaining that custom binaries are forbidden.

I suppose it has something to do with:

"OEM grace time" (or something similar) some people mentioned in this thread;

Disable_Dm-Verity; and/or,

"kg state: prenormal" (appeared once in Download screen, but no more after I flashed stock recovery, boot and vbmeta).

I didn't execute the Disable_Dm-Verity when I had the opportunity inside TWRP, since the instructions on the forum said I needed to do a "data format" first.

After the "data format", no more TWRP, no more flashing of custom ROMs.

Completely lost about what to do, except use stock ROM (with the bonus message of unlocked bootloader/cursed device).
[Samsung Galaxy A20 Guides, News, & Discussion] physwizz:
This is the twrp for you.

https://xdaforums.com/galaxy-a20/development/recovery-twrp-3-3-1-0-galaxy-a10-exynos-t4013481