⚠️Galaxy A71 Root || Unlock Bootloader || Flash Official Firmware [Binary 1] February

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petre2002b

New member
Dec 26, 2016
4
0
Yes, can go into Download Mode, but the problem is, the boatloader in Lock On, OEM is locked and i try to root or Flash, or anything else not work. Masgik also not work. Error 21. Super Su the same....
 

petre2002b

New member
Dec 26, 2016
4
0
I try with Odin also but Fail...I can not go to Developer Options because i do not know the lock screen.
 

kevin mitnick

Senior Member
Oct 28, 2011
299
37
hello, Im new on a71..
is this ubl and root, caused trouble to fingerprint or something ?
 
Last edited:

Marinewonder

Member
Apr 2, 2020
17
3
I see people still posting on this thread in 2022.

So are any of you still rooting with this method successfully with basebands like U8 from 2022?

Should I even attempt this on my U8 baseband on SM-A715F?
 

awdrifter

Senior Member
Feb 11, 2012
268
11
The phone is bootlooping. It'll boot into the lock screen for a split second then it turns off. I tried mounting the system, but I get this error. If anyone knows how to fix it please help. Thanks.

Edit: it seems like I can still use adb to sideload stuff. Can I just sideload a dm-0 file to the phone? Can someone share their dm-0 file from their A71? Thanks.

hvutbE.jpg
 
Last edited:

prabhas7698

New member
Aug 13, 2022
1
0
In Samsung galaxy a71 showing No Imei and no sim, no wifi connection,
Please help me to solve this issue
 

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  • 16
    Latest recommended firmware for latest update faster: (Updated weekly).

    WARNING: You can't downgrade anymore once you flashed U2 update !


    You will need:

    -Odin v3.14.1
    https://dl2018.sammobile.com/Odin3-v3.14.1.zip

    -Galaxy A71 Latest USB Driver
    https://developer.samsung.com/galaxy/others/android-usb-driver-for-windows

    You want to download latest firmware directly from server? (fast download)
    Samfirm 0.4.1 or Frija 1.4.2
    https://samfirmtool.com/samfirm-v0-4-1
    https://github.com/wssyncmldm/frija/releases
    Frija not working ? install both vcredist_x00 for your device !


    (Check your windows settings to know which version to install).

    (Microsoft Visual C++ 2010 Redistributable Package) and (Microsoft Visual C++ 2008 Redistributable Package)

    -https://www.microsoft.com/en-US/download/details.aspx?id=29 (x86) 2008
    -https://www.microsoft.com/en-US/download/details.aspx?id=5555 (x86) 2010
    -https://www.microsoft.com/en-US/download/details.aspx?id=15336 (64bit) 2008
    -https://www.microsoft.com/en-US/download/details.aspx?id=14632 (64bit) 2010

    -Open Frija and type in your model (mine is SM-A715F) and your CSC : (mine is LUX).

    (All CSC's and models on Samfrew: https://samfrew.com/model/SM-A715F/).

    -Download and extract SM-A715XX_1_00000000000000_xxxxxxxxxx_fac.zip

    On your device:
    If you want to unlock bootloader:

    -Go to Settings then to About phone and find your build number.

    -Tap on your build number 6 times until you see “You’re now a developer”.

    -Go in Developer options > enable OEM unlocking.

    -Connect the device to your PC.

    -Power off your device with POWER and volume DOWN and directly hold volume UP and DOWN together!

    -Device will boot in DOWNLOAD MODE.

    -Long press volume UP to unlock the bootloader. This will wipe your data and automatically reboot your device!

    If you dont want to unlock bootloader:.

    -Download and extract Odin and open it as administrator.

    Still in DOWNLOAD MODE:

    -Click on BL and select BL_A715FXXXU1AXXX_CL16843479_QB27603640_REV00_user_low_ship_MULTI_CERT.tar.md5

    -Click on AP and select AP_A715FXXXU1AXXX_CL16843479_QB27603640_REV00_user_low_ship_MULTI_CERT_meta_OS9.tar.md5

    -Click on CP and select CP_A715FXXXU1AXXX_CP14483800_CL16843479_QB27603640_REV00_user_low_ship_MULTI_CERT.tar.md5

    (If you want to keep your data don't flash CSC).
    -Click on CSC and select CSC_OMC_OXM_A715FXOXM1AXXX_CL16843479_QB27603640_REV00_user_low_ship_MULTI_CERT.tar.md5

    -Click on USERDATA and select HOME_CSC_OMC_OXM_A715FXOXM1AXXX_CL16843479_QB27603640_REV00_user_low_ship_MULTI_CERT.tar.md5

    -Click on START and wait for installation, when done you can unplug your device.


    ROOT​
    Your KNOX status will be tripped if you follow this tutorial...​
    What's knox ? : https://www.google.com/search?q=samsung+knox+explained

    -Download the latest stock firmware for your Samsung Galaxy A71 with Samfirm/Frija app (faster) or Samfrew/Sammobile website (way slower).


    https://samfrew.com/model/SM-A715F/


    -Extract the SM-A715XX_1_EXAMPLE_0000000000_fac.zip file with 7zip or any other unzipper.

    -Copy the (AP_A715XXXXU1XXXX_CL00000000_QB00000000_REV00_user_low_ship_MULTI_CERT_meta_OS10.tar.md5) file and transfer it to your internal storage.

    -Download and install Magisk Manager APK https://github.com/topjohnwu/Magisk/releases/download/manager-v7.5.1/MagiskManager-v7.5.1.apk

    -Open Magisk Manager and go to Install > Install > Select and Patch a file.

    -Navigate through the storage and select the extracted AP file.
    The firmware will be patched and will be found in Internal Storage/Download/magisk_patched.tar.

    -Transfer the patched file to your PC.

    -Turn OFF your device and boot into DOWNLOAD MODE.

    -In Odin, click on AP and select the patched tar file, Uncheck “Auto Reboot” and click on Install.

    The tool will flash Magisk V20 on your Samsung Galaxy A71.

    To boot in recovery or boot the system with Magisk installed:

    1. Powering up normally → System without Magisk
    2. Power + Volume Up → Bootloader warning → Release all buttons → System with Magisk
    3. Power + Volume Up → Bootloader warning → Keep holding volume up → Actual recovery
    3
    Discord A series group to help users:

    https://discord.gg/xrnrU8k


    Don't need to dowload theses files if you don't know their purposes.

    A71_EUR_OPEN.pit
    https://mega.nz/#!Z1BRVQIZ!j3EkHOBbp7--iUAgZ2T56iBMzZMtKZoh17lphPqugtc

    Combination firmwares:

    COMBINATION_FAC_FAQ0_A715FXXU1ATA1
    https://androidfilehost.com/?fid=4349826312261713325

    COMBINATION_FAC_FAQ0_A715FXXU1ATA2
    https://androidfilehost.com/?fid=4349826312261713327
    3
    Ok ladies and gentlemen I finally got it working, and here's what I had to do

    You'll need to install 7zip or something that handles TARs and LZ4 that you can grab from github it was the second result on google for me

    Once you've patched the AP file in Magisk Manager and copy it back to your pc, Open up that tar file and delete all files except recovery.img and vbmeta.img

    Then open the original prepatched AP file in 7Zip and extract the boot.img.lz4 then take that file and drag it onto the lz4.exe from the lz4 utilities

    you should now have a nice clean uncompressed boot.img, put that back onto the phone and patch it with magisk manager, you should now have magisk_patched.img copy that back to the pc and rename it boot.img and put it in the tar file from earlier so you should have boot.img recovery.img and vbmeta.img

    With just these 3 files in the tar you dont have to worry about wiping your data again and it will patch pretty fast

    Open up ODIN again and select AP and choose your new tar file and flash it

    Then shut down the phone fully and power it on while holding vol up till you get to the warning screen about the unlocked bootloader let go of vol up and press power to continue and you should find that it boots properly now and magisk manager will show that magisk is installed.

    Okay, this method is working for me except the last, but i solved it:
    I patched the AP file in Magisk Manager, copied back to my pc, opened the tar file with 7zip and deleted all files except recovery.img and vbmeta.img.
    I opened the original prepatched AP file in 7Zip and extracted the boot.img.lz4 and dragged it to lz4.exe.
    I copied the uncompressed boot.img to my phone and patched it in magisk manager, copied back the patched file to my pc and put it in the tar file, flashed with odin (before flashing I unticked the auto reboot), after it's done, I pressed and held volume down and power and when the screen went off, quickly changed to volume up and power button and hold until the bootloader warning appeared, I released the buttons, and I pressed the power button to continue to samsung logo, and my phone got bootloop (after a few seconds).
    After it restarts and the screen went off I quickly pressed and held the volume up and power button until the bootloader warning appeared again, pressed the power button, and after the samsung logo appeared, quickly pressed and held the volume up until the stock recovery does not appear -> stock recovery -> mount system -> reboot to the system -> hold volume up and power button (!) -> bootloader warning - press power button to continue -> samsung logo -> press and hold the volume up until the recovery does not appear -> recovery -> reboot to the system -> wait until the bootloader warning (and do not press and hold volume up and power (!) ) -> press the power to continue -> samsung logo, and wait and the phone is booted and working with magisk root. If you reboot the phone or shutdown it, magisk root is still working without pressing volume up and power.
    3
    @BK
    Thanks for the share, would be appreciated if you can mention how to update over OTA when we have root the phone. Thanks.

    The reason it's not mentionned is simply because we can't, we just need to download latest firmware and patch it with magisk.

    topjohnwu stated ( and i tested it myself ) that if we flash the latest OTA it will brick the device, which is logic.

    We need to patch the latest firmware with magisk, if we go from a rooted environment to a non rooted it will brick.

    I hope i cleared your thoughs. :cowboy:
    3
    I've tried rooting several times to no avail, I've unlocked and flashed everything with the patched magisk setup, I'm using the SM-A715F BTU firmware as that's what my phone was beforehand

    When i try and do the volume up boot then release at the warning screen it just does a reboot cycle and never boots I have to force it it shut down and boot normally

    I cant even restore phone to a point where SafetyNet validates so no Pokemon Go and such

    Ok ladies and gentlemen I finally got it working, and here's what I had to do

    You'll need to install 7zip or something that handles TARs and LZ4 that you can grab from github it was the second result on google for me

    Once you've patched the AP file in Magisk Manager and copy it back to your pc, Open up that tar file and delete all files except recovery.img and vbmeta.img

    Then open the original prepatched AP file in 7Zip and extract the boot.img.lz4 then take that file and drag it onto the lz4.exe from the lz4 utilities

    you should now have a nice clean uncompressed boot.img, put that back onto the phone and patch it with magisk manager, you should now have magisk_patched.img copy that back to the pc and rename it boot.img and put it in the tar file from earlier so you should have boot.img recovery.img and vbmeta.img

    With just these 3 files in the tar you dont have to worry about wiping your data again and it will patch pretty fast

    Open up ODIN again and select AP and choose your new tar file and flash it

    Then shut down the phone fully and power it on while holding vol up till you get to the warning screen about the unlocked bootloader let go of vol up and press power to continue and you should find that it boots properly now and magisk manager will show that magisk is installed.