[ROOT KERNEL FOR TowelRoot] Tab Pro 8.4, 10.1

ObiDanKenobi · Feb 22, 2016

you can flash the one of your current firmware back, after you rooted.

MiMo1111 · Jul 19, 2016

Towelroot - use older kernel

Im new on these things, can i revert back to an older kernel?
And Does it matter if my Tab Pro 8.4 WiFi SM-T320 is a Nordic countries device, can i still use these provided files?
And which one should i use, there are two different versions provided in this thread for the 8.4 Tab Pro SM-T320. I currently have Android 4.4.4 if i remember correct, or maybe it was 4.4.2?

I want to use Towelroot but my device is newer than the latest accepted date for Towelroot, so according to instructions i should use this kernel file in this thread to revert back to an older one.

Thanks for some help.

rnwalker7 · Jul 20, 2016

I don't think you can flash an older kernel with a locked bootloader, especially with the Knox bootloader Samsung shipped out (you'll probably brick your device). The only way to revert to an older kernel (i.e. older firmware) is to unlock the bootloader. At which point, it's kinda pointless to use Towelroot, since I assume you don't want to void warranty. You might try Kingroot, but being Chinese, I'd be careful. Some other devs have been wary of the data the app sends back to its servers.

waylo · Jul 20, 2016

rnwalker7 said:
I don't think you can flash an older kernel with a locked bootloader, especially with the Knox bootloader Samsung shipped out (you'll probably brick your device). The only way to revert to an older kernel (i.e. older firmware) is to unlock the bootloader. At which point, it's kinda pointless to use Towelroot, since I assume you don't want to void warranty. You might try Kingroot, but being Chinese, I'd be careful. Some other devs have been wary of the data the app sends back to its servers.

No, that's the whole point of this thread. You can flash older kernels and not trip Knox. You flash the kernel through Odin, run towel root, then flash back the newer kernel. Knox gets tripped if you flash an unofficial kernel, recovery, or system partition.

But really, this tablet is old enough that the manufacturers warranty is over, so Knox trip doesn't matter anymore.

MiMo1111 · Jul 20, 2016

waylo said:
No, that's the whole point of this thread. You can flash older kernels and not trip Knox. You flash the kernel through Odin, run towel root, then flash back the newer kernel. Knox gets tripped if you flash an unofficial kernel, recovery, or system partition.

But really, this tablet is old enough that the manufacturers warranty is over, so Knox trip doesn't matter anymore.

Thats what i thought but then i saw that the warranty is 24 month from the store this is bought from, so thats why i started to look for this root method without voiding the warranty.

Anyway would you mind telling me which file i should use in Odin, since i can see two different files in the first post of this thread that are for the tab Pro 8.4 WiFi SM-T320.
I have a nordic model Tab Pro, i don't know if that matters and if i can use these files anyway for my Tab Pro SM-T320 Wifi?

waylo · Jul 20, 2016

MiMo1111 said:
Thats what i thought but then i saw that the warranty is 24 month from the store this is bought from, so thats why i started to look for this root method without voiding the warranty.

Anyway would you mind telling me which file i should use in Odin, since i can see two different files in the first post of this thread that are for the tab Pro 8.4 WiFi SM-T320.
I have a nordic model Tab Pro, i don't know if that matters and if i can use these files anyway for my Tab Pro SM-T320 Wifi?

Can you read off the model # from the box? Also, what kernel are you on? Located under the device settings.

We have to make sure the kernel is compatible, and you would also want a flashable copy of the existing kernel. This thread is a bit old so not sure how available that might be.

MiMo1111 · Jul 21, 2016

waylo said:
Can you read off the model # from the box? Also, what kernel are you on? Located under the device settings.

We have to make sure the kernel is compatible, and you would also want a flashable copy of the existing kernel. This thread is a bit old so not sure how available that might be.

Thanks for your answer. The model number on the box says SM-T320 (8.4 inch screen, WIFI only), and the Kernel in the device settings says 3.4.0-2690686 / dpi@SWDD5510 #1 (Wed, Sep 3, 13:34:57, KST 2014)
And build number says: KOT49H. T320XXU1BNI1

Thanks in advance.

relagent · Jul 24, 2016

Great work man.

waylo · Jul 25, 2016

MiMo1111 said:
Thanks for your answer. The model number on the box says SM-T320 (8.4 inch screen, WIFI only), and the Kernel in the device settings says 3.4.0-2690686 / dpi@SWDD5510 #1 (Wed, Sep 3, 13:34:57, KST 2014)
And build number says: KOT49H. T320XXU1BNI1

Thanks in advance.

Here are some general steps. There are a few unknowns here though.

1. We would want to flash back a kernel that is before 6/3/2014. Yours is from afterwards, so the towelroot exploit is patched, probably. You can try running towelroot to see if it works and then test for root, but most likely it won't work.

2. First, get the necessary backups in case something goes odd.

You are currently running version NI1. Your region model is XXU1B, which seems to be most of Europe and some South American countries.
Go here: http://updato.com/firmware-archive-select-model?r=NEE&v=&q=t320
and download it. This is the Nordic version of the firmware, though it's probably the same as the other countries with the XXU1B designation. This is the backup zip for exactly what you have now. In case something goes really weird, you can ODIN this and your tablet will be back to its current state, though your data may be wiped.

3. From what I've read from other users with the NI1 firmware, you can ODIN the rootable kernel in the original post here. If it doesn't work, you have your backup file to ODIN restore back to normal.

ODIN the rootable kernel from the first post, for the T320 wifi-only (that is what you have right?). See if it boots up and runs. If so, then run towelroot. Then install supersu.

4. Here's the decision point:
You can continue to run with the same kernel on this thread. I don't know if it matters at all.
OR
You can make your own kernel tar to restore yourself to the newer kernel specific for your region build. Or you can see if someone here has made it already. My quick and dirty search has not turned up any NI1 kernel links on this thread, though several users have done it.

If you decide you want to flash your original kernel back, and no one has it for you, you'll have to make it yourself. Go to this thread:
http://xdaforums.com/showthread.php?t=2446269
and use the utility to make the boot.img from your downloaded backup into a flashable N1 kernel tar file.

MiMo1111 · Jul 26, 2016

waylo said:
Here are some general steps. There are a few unknowns here though.

1. We would want to flash back a kernel that is before 6/3/2014. Yours is from afterwards, so the towelroot exploit is patched, probably. You can try running towelroot to see if it works and then test for root, but most likely it won't work.

2. First, get the necessary backups in case something goes odd.

You are currently running version NI1. Your region model is XXU1B, which seems to be most of Europe and some South American countries.
Go here: http://updato.com/firmware-archive-select-model?r=NEE&v=&q=t320
and download it. This is the Nordic version of the firmware, though it's probably the same as the other countries with the XXU1B designation. This is the backup zip for exactly what you have now. In case something goes really weird, you can ODIN this and your tablet will be back to its current state, though your data may be wiped.

3. From what I've read from other users with the NI1 firmware, you can ODIN the rootable kernel in the original post here. If it doesn't work, you have your backup file to ODIN restore back to normal.

ODIN the rootable kernel from the first post, for the T320 wifi-only (that is what you have right?). See if it boots up and runs. If so, then run towelroot. Then install supersu.

4. Here's the decision point:
You can continue to run with the same kernel on this thread. I don't know if it matters at all.
OR
You can make your own kernel tar to restore yourself to the newer kernel specific for your region build. Or you can see if someone here has made it already. My quick and dirty search has not turned up any NI1 kernel links on this thread, though several users have done it.

If you decide you want to flash your original kernel back, and no one has it for you, you'll have to make it yourself. Go to this thread:
http://xdaforums.com/showthread.php?t=2446269
and use the utility to make the boot.img from your downloaded backup into a flashable N1 kernel tar file.

Wow, thanks for the detailed information. About the kernel, what would the downsides be to continue using a kernel from another region and a older kernel? Other language than my current?

EDIT: I tested Towelroot on my Tab pro, it said my tab pro is not compatible. Sorry for not understanding the process of creating an own kernel. I read the instructions on the provided link, it said that one is suppose to make a md5 file from a img file or from a boot file or something similar to that, but which file is the original file i should use to make my own kernel?

So which is the image file i should use to make the tar.md5 file?

waylo · Jul 26, 2016

The kernel is in the boot.img file. It's pretty small, usually <10 megs. So take that from the backup zip you downloaded and use the script to make your flashable tar.md5 file. I've never used the script personally, but you can post on that thread.

I don't know of any real downside to having the mismatched kernel. I ran with the towelroot-able kernel for quite a while before flashing back the matching one and really did not see anything noticeable. But I was at least on the same country-build, so your results may differ somewhat. The hardware is the same though.

MiMo1111 · Jul 27, 2016

waylo said:
The kernel is in the boot.img file. It's pretty small, usually <10 megs. So take that from the backup zip you downloaded and use the script to make your flashable tar.md5 file. I've never used the script personally, but you can post on that thread.

I don't know of any real downside to having the mismatched kernel. I ran with the towelroot-able kernel for quite a while before flashing back the matching one and really did not see anything noticeable. But I was at least on the same country-build, so your results may differ somewhat. The hardware is the same though.

Thanks, do you mean from the original Kernel from the link you provided, in that case its only 1 file that is a tar.md5 file and its a big file around over 1 GB or something like that, how do i get the kernel /boot file from that big file?

Or do you mean the boot.img file from the rootable kernel from this thread, that files is about 10 Mbyte?
In that case i can not open / unzip the "boot" file in Win XP, it says:

"ERROR: internal error processing ISO image"

The rootable kernel downloaded from this thread is a ZIP file named T320_Kernel, when i unzip that file i get another ZIP file called "boot", and that file i can not unzip.
It seems it is not a WinZip compatible file even though it has a WinZip file icon?

Also in Mac OS X it says that the "image not recognized".

waylo · Jul 27, 2016

The file you need to bake your own kernel is within the large 1gb file. You have to find a utility (7zip works fine) and pull out the boot.img from there. Easy peezy.

dboy 14 · Sep 5, 2016

Wtf...does nobody else have a ****ing smt560. Like i have not seen that model number menyioned one ****ing time

MagicianPe · Mar 24, 2017

Post only to confirm that the method of the OP:
- Flash the lastest firmware with ODIN
- Install Towelroot, do not execute, copy SuperSU to SD
- Flash the old vulnerable kernel
- Execute Towelroot and reboot
- Install and execute SuperSU in System
- Flash the new original Kernel from the latest Firmware
- Boot into recovery Format Data / Factory reset.
- Verify SuperSU, reinstall if necessary
Is working for the 2017 security update of the firmware for the SM-T320: T320XXU1BQB2_T320UVS1BQA1_PEO

Regards.

jacomail95 · Jul 10, 2017

This method worked also for me, thank you. Can I now modify build prop, or to put scripts in system or to flash TWRP using the TWRP app without tripping Knox?

Inviato dal mio SM-T325 con Tapatalk 2

tinasoft · May 13, 2021

Ok Merci

tinasoft · May 13, 2021

Ok Merci

[ROOT KERNEL FOR TowelRoot] Tab Pro 8.4, 10.1

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