How to root Galaxy Tab S7(+). (GUIDE)

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Nightmare0

Member
Apr 17, 2020
49
16
SIngapore
Download the firmware, and extract "boot.img.lz4" from AP.
Use 7-zip or something else to compress the boot file and choose TAR format.
Use Magisk to patch the "boot.img.tar", and you will get "magisk_patched.tar" in /Download folder.
Flash it as AP and wipe user data. (You should unlock the bootloader.)
Then you have successfully rooted your device.



How to download the firmware.
Use Samfirm to search device model and CSC code.
It seems that Sammobile has not released the firmware of the new Galaxy Tab S7 series.
 
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XODS

Member
Sep 6, 2016
30
0
is there a way to reset Knox afterwards, so I can still use Samsung pass, and not have to deal with Knox yelling at me at boot every time?
 

Nightmare0

Member
Apr 17, 2020
49
16
SIngapore
is there a way to reset Knox afterwards, so I can still use Samsung pass, and not have to deal with Knox yelling at me at boot every time?
Normally, there is no way to reset the Knox. Actually, Knox is protected by an e-fuse. When you flash customized software, the Knox will be tripped, and this is a physical damage, unless you can fix the e-fuse.
 

fvig2001

Senior Member
May 19, 2006
188
35
Can you still update via software update or would you end up having to flash updates manually after rooting? With regards to rooting, do you lose HDCP? On my Note 7 and Note 9 HDCP become disabled when device is custom (Apps that use it like Netflix refuse to load video due to issues with HDCP)
 
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Nightmare0

Member
Apr 17, 2020
49
16
SIngapore
Can you still update via software update or would you end up having to flash updates manually after rooting? With regards to rooting, do you lose HDCP? On my Note 7 and Note 9 HDCP become disabled when device is custom (Apps that use it like Netflix refuse to load video due to issues with HDCP)
Download the latest firmware, and extract the "boot.img.lz4" from AP. TAR it and then patch it. Flash BL, AP and HOME_CSC. Then reboot and flash "magisk_patched.tar" as AP. You will not lose your data.
I can still watch Netflix without any problems.
 

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fvig2001

Senior Member
May 19, 2006
188
35
Download the latest firmware, and extract the "boot.img.lz4" from AP. TAR it and then patch it. Flash BL, AP and HOME_CSC. Then reboot and flash "magisk_patched.tar" as AP. You will not lose your data.
I can still watch Netflix without any problems.

OK, I'll try it when my warranty is about to end or I get really bored with my S7+.
 

AhsanU

Senior Member
Sep 27, 2013
708
245
NYC
I know this is a question that might be better suited for its own thread but I kinda think its a quick answer for you guys.

What do you gain from root on this specific device? I haven't had to root a device in a few years since Android has gotten pretty dammed good for my use case, but what's there to be had from rooting a tablet?

I'm looking forward to my Tab S7+ but if I can make it better with root then I'd love to do it.
 

mikedavo

Senior Member
Sep 16, 2017
114
35
I know this is a question that might be better suited for its own thread but I kinda think its a quick answer for you guys.

What do you gain from root on this specific device? I haven't had to root a device in a few years since Android has gotten pretty dammed good for my use case, but what's there to be had from rooting a tablet?

I'm looking forward to my Tab S7+ but if I can make it better with root then I'd love to do it.
This is a good question but as I've learnt from posting a similar thread, you will only get defensive and rude answers from this forum.
 

vangry2020

Member
Mar 18, 2020
41
2
I know this is a question that might be better suited for its own thread but I kinda think its a quick answer for you guys.

What do you gain from root on this specific device? I haven't had to root a device in a few years since Android has gotten pretty dammed good for my use case, but what's there to be had from rooting a tablet?

I'm looking forward to my Tab S7+ but if I can make it better with root then I'd love to do it.

I have rooted my Tab S7+ what i gained is the ability to add a system wide ad block with adguard doh + firewall with the ability to use a vpn at the same time.

Also bouncer now works seamlessly with a rooted device. I also use warden which blocks in app trackers and loggers from system apps and debloat easily from the device without using adb.

I am able to use tasker to seamlessly adjust apps that are not optimized for tablets in landscape mode so that they work properly on my device.

All of that is only possible with a rooted device and im discovering new tweaks every single day.
 
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ssalkuwari

New member
Mar 26, 2020
4
0
Ok, whatcha got and what's the issue...

When i flash patched file and reboot into recovery then do Wipe/Factory Reset then restart with

Power + volume up - it goes into boot loob

Only way out is Power + volume down

This way i boot system with no issues however magisk still showes not installed.
 

jhill110

Senior Member
Oct 12, 2012
1,880
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Santa Barbara
HTC U11
Moto G Power
When i flash patched file and reboot into recovery then do Wipe/Factory Reset then restart with

Power + volume up - it goes into boot loob

Only way out is Power + volume down

This way i boot system with no issues however magisk still showes not installed.
Don't power + volume up. Just re boot from odin and start magisk manager.
If you have to install magisk from there.
 
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  • 1
    There seems to be a lot of conflicting info about root. Some say if on Android 11 OneUI 3.1 modify the whole AP with magisk and flash it. Others say just use the modified boot image. I am currently one the latest stock update T870XXU2BUC6. not yet unlocked. Which way should I go?
    As far as I know.... When you patch the AP file it just patches the boot image. Either way is OK. It (the AP file) is just much bigger for copying back and forth and flashing in ODIN... That's all.

    EDIT: I have BUC6 in my patched boot image thread (in this forum) if you don't want to hassle patching it yourself.
    1
    There seems to be a lot of conflicting info about root. Some say if on Android 11 OneUI 3.1 modify the whole AP with magisk and flash it. Others say just use the modified boot image. I am currently one the latest stock update T870XXU2BUC6. not yet unlocked. Which way should I go?
    I have all the same software as you , all I did was flash patched AP, all working good!
    1
    @jhill110 , are you running any TWRP?
    No, as of yet there's no working twrp for the T870.
    1
    No, as of yet there's no working twrp for the T870.
    I flashed your modified boot image and everything works like a charm. After removing the bloat, it is perfect. Using Titanium Backup my games are back up to date. I don't miss TWRP at all. Thank you agian for your help and advice.
  • 7
    The various mileage from people rooting in this forum offers super conflicting information, especially conflicting with the OP.

    Can somebody who knows what they're doing, please make an actual guide that is longer than 5 short lines of general info, with links to files and explaining why he picked what thing to do / downmload, and then also please explain:
    - what do you loose by rooting? knox? netflix widevine L1? dex? pen? bootloader unlocked (how)? anything else asked on here and here?
    - how do you update after rooting? (without re-flashing everything every time)

    There's another quick guide in this thread, but no replies and no explanation for why he did what, so again not an actual guide that inspires confidence.
    Knox is 100% tripped. Samsung Pass cannot use. Netflix widevine, Dex and Spen are not affected.

    Unlock Bootloader: turn on "OEM unlocking" in "Developer options"
    connect to the PC, reboot the tablet and hold both volume up and down. Then hold volume up to unlock it. (The method may be different now)

    Download the firmware from Frija and unzip it.
    Unzip the AP file, you will get "boot.img.lz4" and tar this file, get a tar file.
    Copy it to your phone and use magisk to patch it, get "magisk_patched.tar" in "/Download". Copy it to the PC.
    Whether your phone is rooted or not is not important.

    Boot into Download Mode, and use Odin flash AP, BL, CSC, (CP). Then use AP slot flash "magisk_patched.tar".
    Install magisk manager on your tablet.
    Done.

    When updating your tablet, you should reflash it, including the new patched file, but use the "HOME_CSC" file instead of "CSC" file.
    Data will not be lost.

    Why patch the boot file?
    When patching it, magisk is written into it. When you boot your tablet, magisk will run. Another way is to patch the recovery file. When boot into recovery, magisk will run.

    When updating, why flash "HOME_CSC"?
    Flash "HOME_CSC" you will keep all your data, if you flash "CSC", you will lose all your data. It is the easiest way to update it.

    Any way to fix the Knox?
    No.

    Frija: https://forum.xda-developers.com/t/tool-frija-samsung-firmware-downloader-checker.3910594/
    Odin: https://odindownloader.com
    Magisk: https://magiskmanager.com
    3
    1) The firmware I've downloaded doesn't have a 'CP' to flash (I think that's just the modem?).
    2) Do I need that?
    3) It has AP, BL, CSC and HOME_CSC only. Is it because I have the wifi-only version?
    1) Correct
    2) No
    3) Yes
    2
    Anyone updated to one ui 3.1??
    Yes, currently running 3.1 on my Tab S7+ (SM-T970). Rooting also went well, no issues so far
    1
    I know this is a question that might be better suited for its own thread but I kinda think its a quick answer for you guys.

    What do you gain from root on this specific device? I haven't had to root a device in a few years since Android has gotten pretty dammed good for my use case, but what's there to be had from rooting a tablet?

    I'm looking forward to my Tab S7+ but if I can make it better with root then I'd love to do it.

    I have rooted my Tab S7+ what i gained is the ability to add a system wide ad block with adguard doh + firewall with the ability to use a vpn at the same time.

    Also bouncer now works seamlessly with a rooted device. I also use warden which blocks in app trackers and loggers from system apps and debloat easily from the device without using adb.

    I am able to use tasker to seamlessly adjust apps that are not optimized for tablets in landscape mode so that they work properly on my device.

    All of that is only possible with a rooted device and im discovering new tweaks every single day.
    1
    No, as of yet there's no working twrp for the T870.
    I flashed your modified boot image and everything works like a charm. After removing the bloat, it is perfect. Using Titanium Backup my games are back up to date. I don't miss TWRP at all. Thank you agian for your help and advice.
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