Root For A205XX Only (October Patch)(U3)

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emyaqin

Member
Dec 14, 2016
20
5
Tangerang
Hello, I'm a little bit confused here, I have the A205F variant and should I unlock the bootloader first to flash the boot.img? What does latest BL and modem mean tho?

Oh yeah, I have the Nov patch update here, thanks for any answer
 

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Hritwik

Senior Member
Jan 27, 2014
153
67
Jaipur
Whats the deal with U3, U4, U5 and greater version of bootloaders with Exynos chipset?
I know Samsung has locked bootloaders of USA snapdragon variants, but can all exynos chip-set ones be unlocked?
Or till U2 bootloader can be unlocked and can have root but above U3 cannot be rooted?

It's so confusing, and i have been searching for past 10 days but cannot find answer to above questions, Please Help me @Agrim720 @physwizz
 

physwizz

Senior Member
Sep 16, 2013
3,871
861
Sydney
Whats the deal with U3, U4, U5 and greater version of bootloaders with Exynos chipset?
I know Samsung has locked bootloaders of USA snapdragon variants, but can all exynos chip-set ones be unlocked?
Or till U2 bootloader can be unlocked and can have root but above U3 cannot be rooted?

It's so confusing, and i have been searching for past 10 days but cannot find answer to above questions, Please Help me @Agrim720 @physwizz
Read the first 3 posts here
https://forum.xda-developers.com/galaxy-a20/how-to/root-samsung-galaxy-a20-rooting-guide-t3954872
Post#3 gives all of your answers in one spot.
 
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RodrigoScooby

Member
Apr 23, 2018
10
0
Depois de fazer todos os passos
Root feito com sucesso
O Magisk tinha atualização pra fazer
Mas depois de atualizar o Magisk
O celular reinicia e vai para a tela de modo download
E mostra o seguinte erro:
"Error validating footer. (6)
CUSTOM DTBO
VBMETA A205GUBU4ASK2, 26958069R"

E não sai dessa tela

---------- Post added at 09:30 AM ---------- Previous post was at 09:01 AM ----------

After doing all the steps Successfully done root Magisk had an update to do But after upgrading Magisk The phone restarts and goes to the download mode screen. And shows the following error:
"Error validating footer. (6)
CUSTOM DTBO
VBMETA A205GUBU4ASK2, 26958069R "
And don't leave this screen
 

archie143u

Member
Feb 2, 2020
7
0
Everytime i flash boot.tar on my SM-a20 which is U4 novermber patch intallation was failing igot this message

<ID:0/004> Added!!
<ID:0/004> Odin engine v(ID:3.1303)..
<ID:0/004> File analysis..
<ID:0/004> Total Binary size: 0 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> ANDROID!¨âÅ
<ID:0/004> Unassigned file
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)


please need help badly :(
 

physwizz

Senior Member
Sep 16, 2013
3,871
861
Sydney
Everytime i flash boot.tar on my SM-a20 which is U4 novermber patch intallation was failing igot this message

<ID:0/004> Added!!
<ID:0/004> Odin engine v(ID:3.1303)..
<ID:0/004> File analysis..
<ID:0/004> Total Binary size: 0 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> ANDROID!¨âÅ
<ID:0/004> Unassigned file
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)


please need help badly :(

is bootloader unloced?

---------- Post added at 06:56 PM ---------- Previous post was at 06:56 PM ----------

Everytime i flash boot.tar on my SM-a20 which is U4 novermber patch intallation was failing igot this message

<ID:0/004> Added!!
<ID:0/004> Odin engine v(ID:3.1303)..
<ID:0/004> File analysis..
<ID:0/004> Total Binary size: 0 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> ANDROID!¨âÅ
<ID:0/004> Unassigned file
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)


please need help badly :(

is bootloader unlocked?
 
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archie143u

Member
Feb 2, 2020
7
0
is bootloader unloced?

---------- Post added at 06:56 PM ---------- Previous post was at 06:56 PM ----------



is bootloader unlocked?

YES. OEM unlock already greyed. I have already Rooted my Device. My mistake was i didnt use Zarchiever to compreee boot to tar. So far so good. Maybe i will stick to stock rooted.
 

nofroyo

Senior Member
Sep 20, 2011
481
47
Sacramento
Is A0205FDDS6ASL4 rootable? I had A205FOLM2ASFB rooted, returned to stock and OTA was updated? tried the boot.tar and it keeps saying fail, write error. bootloader still unlocked
 

allisson

Senior Member
Feb 19, 2012
85
5
Santos
I change the date to 2 weeks ago, asked the software to check for updates, changed the date back to today and at the developer options found the OEM unlock available. All of this without any intermediate reboot. Then I entered the download mode (vol + and vol - and power cable) and could find the option to unlock bootloader. After reboot I got the message that the bootloader is unlocker. However, at the OS under developer option the OEM unlock is not available again.
Tonight I'll try to conclude the rooting process. Let's see if it'll work.
 

ninjasinabag

Senior Member
May 28, 2013
914
346
Philadelphia
I change the date to 2 weeks ago, asked the software to check for updates, changed the date back to today and at the developer options found the OEM unlock available. All of this without any intermediate reboot. Then I entered the download mode (vol + and vol - and power cable) and could find the option to unlock bootloader. After reboot I got the message that the bootloader is unlocker. However, at the OS under developer option the OEM unlock is not available again.
Tonight I'll try to conclude the rooting process. Let's see if it'll work.

You rebooted going from download mode to the main OS.
You can boot right out of download mode instead and keep OEM unlock that way.
Fastboot reboot.
 
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