My Gran Prime (SM-G531M) Does not root!! Help! - Android Q&A, Help & Troubleshooting

First of all I'm Brazilian, I've tried all the topics of my country to make root in other models, in the model of my cell phone, in foreign topics and nothing! I tried all TWRP by odin with bootloader turned on, off, with debugging turned on all the same and it does not always come up an error in download mode "Custom Binary (RECOVERY) Blocked By FRP Lock" written in green, as if there was a lock being That the bootloader is unlocked, I already tried all possible root apps and nothing , I really need to root it because it has little space, help me what could be? I heard it could be Samsung KNOX but I do not know disable it, Thanks. :good:

Related

[J5108/J7108][GUIDE]how to root the Galaxy J5/J7 2016 models J5108/J7108

Hi Evryone.
Because I didn't found CWM or TWRP Recovery or any root method for the galaxy J5 J5108 and the J7 J7108, I made a pre-rooted firmwares for those models.
This firmware base on the hong kong firmware which include the Google apps, this a full firmware exactly like the original, except the root.
After flash you will see the SuperSU app in the app drawer.
Also, this firmware contains the bootloader from the china firmware which doesn't have frp lock.
The root include the binary files in the system, and a pathed boot. (from Android 6.0 or samsung 5.1.1 pathing the boot is necessary for the root work properly)
Flashing this firmware will not wipe data automaticly. you should not lose anything.
This file will work on any firmware/baseband/csc. you can always flash it like a stock firmware.
J5 - base on - J5108ZHU1APD2.
Android version: 5.1.1
J7 - base on - J7108ZHU1APD1.
Android version: 5.1.1
Downloads
J5
http://www.mediafire.com/download/o8hfu81j3j4irjt/J5108ZHU1APD2_Rooted_by_avicohh.exe
J7
http://www.mediafire.com/download/z7bh4sdmzqer6nb/J7108ZHU1APD1_rooted_by_avicohh_v2.exe
Installation instructions
Before flashing check the CROM Service status in Download mode, if it locked you will need to unlock the bootloader first with the app attached.
Install samsung usb drivers from here.
Download the self extracting 7z file above and extract it (just double tap) to some folder, you should receive a tar.md5 file.
Open odin 3 (attached in the zip)
Put the tar.md5 file in AP.
Put the device in download mode. (vol down + home + power button, and then click on vol up)
Connect your phone to usb and wait for odin detect the device.
Click start.
After it finish choose reboot system now in recovery.
Enjoy.
If you want to thank me for this work, you can do this by donating.. :good:
Thanks a lot avicohh. This was simple and painless. I now have google services on my mainland China phone. And root too! And like you said - I did not loose anything.
well now i am stuck. I enabled my google account, installed and updated my apps through google play, shutdown and now I can't boot. The message in red on the top of the boot screen is:
"KERNEL IS NOT SEANDROID ENFORCING
Custom Binary blocked by FRP lock."
I also cannot reflash the same HK rooted firmware using Odin
apparently I should have enabled developer options then enabled OEM unlocking before rebooting. But I didn't know that so for now I am bricked
Also apparently, the fix for it is to reflash the original firmware using Odin. I am now downloading the firmware from http://updato.com/firmware-archive-select-model?record=1F170CA05E5611E6B055FA163EE8F90B but it is still another 2-3 hours to complete the download (yes, poor internet connection here.)... So I'll see how that goes...
OK, that didn't work. Now the message on the download mode screen says:
SW REV. Invalid type.
FRP is enabled, not allow download non FRP bootloader binary
Well..
I just recently had the same problem in another device.
I don't think the "Oem unlock" has nothing to do with this. the problem is that when you're adding Google account the frp (factroy reset protection) is automaticly enabled, and then it blocks the pathed boot.
The reason reflash the original firmware didn't work for you is because you tried to flash the china version, that doesn't have google service and also doesn't have frp in the bootloader. (apparently once frp is enabled this kind of operation is not allowed because you are actually trying to remove the frp lock by flashing bootloader..)
I think the solution will be to flash the original hong kong firmware with the frp bootloader and original boot. (or just the original boot)
http://updato.com/firmware-archive-select-model?record=5C13445B54D811E6B055FA163EE8F90B
Then, try to enable the "Oem unlock" option and finally flash the rooted firmware again.
maybe it will work, I'm not sure about it but I would like to know.
If this won't work, I'll try to combine the rooted hong kong firmware with the non-frp bootloader from the china firmware.
Thanks so much for replying avicohh
avicohh said:
Well..
The reason reflash the original firmware didn't work for you is because you tried to flash the china version, that doesn't have google service and also doesn't have frp in the bootloader. (apparently once frp is enabled this kind of operation is not allowed because you are actually trying to remove the frp lock by flashing bootloader..)
Click to expand...
Click to collapse
This makes sense. I was actually suspecting this and was considering trying the 6.01 HK version since that is the only one I could find: http://updato.com/firmware-archive-select-model?record=5C13445B54D811E6B055FA163EE8F90B
Now that you've posted a link to your original 5.1 HK firmware I'll try what you suggest. I'll wait to get home before I start the download.
But I still wonder if the 6.01 would work on my phone?
It's a mistake.
This link above is 5.1.1, not 6.0.1.
There is no 6.0.1 fro this model for now.
yes, I see, the website says its 6.01, but its actually 5.1.1. How do I know? BECAUSE IT WORKED!!! It took 7 hours to download but when I got up this morning it was done, I flashed and it worked!!!
I'm going to read up some more on this FRP business before flashing the rooted version again. My old phone (very old) had no such thing. I'd never heard of it till this unpleasant way of learning about it.
downloading
Same problem downloading the stock firmware from http://forum.xda-developers.com/gal...108-how-to-root-galaxy-j7-2016-model-t3426967
I hope this works....
---------- Post added at 12:27 AM ---------- Previous post was at 12:26 AM ----------
Tukuvai said:
Same problem downloading the stock firmware from http://forum.xda-developers.com/gal...108-how-to-root-galaxy-j7-2016-model-t3426967
I hope this works....
Click to expand...
Click to collapse
I meant http://updato.com/firmware-archive-s...55FA163EE8F90B
Hi guys.
Thanks for your replies.
I've just checked it now on another device.
As it turn out after a several tests, this "custom binary blocked by frp lock" problem occurs only if the oem unlock option is disabled.
Here is what I did, step by step:
First, I enabled the oem unlock option and then I added Google account - nothing happened. frp lock in Download mode is still off and everything working fine.
I removed the google account, turned off the oem unlock option and finally added the google account again - frp lock in download mode immediately switch to on, and when I tried to restart, the device has stuck on the boot. (custom binary..)
I flashed stock firmware (from the link above), the device now bootup normally but the frp lock in download mode is still on. (I didn't remove the google account yet)
Final check - I enabled the oem unlock again, and the frp lock in download mode switch to off.
So..
I can safely say that all you need to do is just enable oem unlock in developer options, and then flash the rooted firmware.
Anyway, to be even more sure, I made a new firmware with the china bootloader, frp now is not even exist in download mode.
You can download the new firmware from here
http://www.mediafire.com/download/z7bh4sdmzqer6nb/J7108ZHU1APD1_rooted_by_avicohh_v2.exe
Good luck!
avicohh said:
Hi guys.
Thanks for your replies.
I've just checked it now on another device.
As it turn out after a several tests, this "custom binary blocked by frp lock" problem occurs only if the oem unlock option is disabled.
Here is what I did, step by step:
First, I enabled the oem unlock option and then I added Google account - nothing happened. frp lock in Download mode is still off and everything working fine.
I removed the google account, turned off the oem unlock option and finally added the google account again - frp lock in download mode immediately switch to on, and when I tried to restart, the device has stuck on the boot. (custom binary..)
I flashed stock firmware (from the link above), the device now bootup normally but the frp lock in download mode is still on. (I didn't remove the google account yet)
Final check - I enabled the oem unlock again, and the frp lock in download mode switch to off.
So..
I can safely say that all you need to do is just enable oem unlock in developer options, and then flash the rooted firmware.
Anyway, to be even more sure, I made a new firmware with the china bootloader, frp now is not even exist in download mode.
You can download the new firmware from here
http://www.mediafire.com/download/z7bh4sdmzqer6nb/J7108ZHU1APD1_rooted_by_avicohh_v2.exe
Good luck!
Click to expand...
Click to collapse
Hey, How do I enable OEM unlock when I can't even boot my device. it simply refuses to boot.
Hi
First flash the original HK firmware from here. the device should boot up normally.
http://updato.com/firmware-archive-select-model?record=5C13445B54D811E6B055FA163EE8F90B
Then, enable oem unlock.
Thanks for making the root version of mainland firmware. I'm going to stick with the HK version as I want to have google services. and thanks for testing the oem unlock
I informed myself some more about FRP and OEM unlock and I am now feel safe to use the rooted HK firmware. Except, I came across one note for which I want further clarification before proceeding. The note is from http://www.androidcentral.com/factory-reset-protection-what-you-need-know and it says:
"A couple notes need added here. This doesn't undo Samsung's (or anyone else's) version of Reactivation Lock. If you've enabled data reset protection through your Samsung account, you'll need to turn that off in your Security settings. You can find the switch under the "Find My Mobile" section."
So, I want to be sure I don't have this samsung Reactivation Lock enabled. and that I am in no danger of it auto-enabling. I believe I am safe but I would like to know if anyone has more clear information.
What I do know is before I flashed to HK ROM, when I went into download mode, there displayed a setting:
"REACTIVATION LOCK: OFF"
now, using the HK ROM, it is gone, but in that exact same location is the setting:
"FRP LOCK: OFF"
I think, that means the mainland version of the FRP lock (Samsung Reactivation Lock), is now replaced with the google FRP lock and as I don't have to worry about the samsung reactivation lock anymore. Is that so?
even so, as the article says, I look in "Settings" >> "Lock screen and security" >> "Find my mobile" >> log into Samsung Account when prompted, then it does not display the "Reactivation Lock" option that is shown in at least one guide that I found. I really think this is further proof I don't have to worry about Samsung Reactivation Lock. Can anyone confirm?
Yes I can confirm.
But pay attention that because of the FRP, is not possible to make a pre-rooted firmware for Android 6.0 and above or 5.1.1 Samsung devices, from firmware contains FRP protection like the HK one.
From those android versions (and above), a pre-rooted firmware (or any root method) must include a patched kernel.
Due to the FRP protection, once it turn on, it detect the custom kernel (boot) and not allow the device to boot. (custom binary blocked by FRP lock)
That's the reason I had to replace the HK bootloader which contain FRP protection, with the China bootloader which contain the Samsung reactivation lock. (instead of FRP, because china firmwares doesn't include any google services)
I don't know what the policy of the Samsung reactivation lock, about custom kernels.
And also I don't know if the Samsung reactivation lock turns on automaticly if you are adding Samsung account. (Like the FRP lock)
And one more thing, I beleive most people don't use Samsung account at all.
So after all this,
If it come to decision what to use, the FRP lock or the Samsung one (depends only in the bootloader), I'm pretty sure that in this case (custom boot), the best is to use the Samsung lock, and just dont add Samsung account, or add Samsung account if needed but turn off the Reactivation lock in the Find my mobile settings.
I hope it help you a bit.
Good luck.
btw, If you can check the Samsung lock after root and report here, it would be great.
avicohh said:
Anyway, to be even more sure, I made a new firmware with the china bootloader, frp now is not even exist in download mode.
You can download the new firmware from here
http://www.mediafire.com/download/z7bh4sdmzqer6nb/J7108ZHU1APD1_rooted_by_avicohh_v2.exe
Good luck!
Click to expand...
Click to collapse
Oh, at first I thought you meant you rooted the mainland firmware. Now, based on your later post, I believe what you did was to put the mainland bootloader in the rooted HK firmware. Is this the case? If so, that means I can still have google services, and root, and no possibility of FRP issues because its a mainland bootloader. OK, I will try tonight. The Samsung reactivation lock is off by default. Even adding a Samsung account does not turn it on, you have to go into "find my phone" to turn it on. So it should be safe. I will confirm tonight after I download your new firmware.
Yes, this is exactly what i did.
Thanks for testing the samsung account. so it is pretty safe.
yes, this new version with mainland bootloader is good. It seems almost impossible to lock.
Now when I go to download mode, there is no more "FRP LOCK: OFF". in its place is "REACTIVATION LOCK: OFF".
Just for fun I tested by going inter developer options and turned off OEM unlock - then I tried to reboot = success. Enter download mode = still "REACTIVATION LOCK: OFF". Of course I turned it back on again after the test.
and in settings, find my mobile, there is still not a setting for "REACTIVATION LOCK". I have seen an example on the web that this reactivation lock setting should be at the bottom of the options under find my mobile. So, actually now I cannot find any way to turn on the reactivation lock - this is good, its what we want.
Of course to even enter the "find my mobile" section I can do nothing at all (in fact it does not even show me what the options are) untill I give my samsung account credentials. Once I give credentials I can see the options but there is no option to turn on reactivation lock. There is just one thing, maybe, is that in "find my mobile", there a place that says: for more information go to findmymobile.samsung.com. When I go there I have 2 options:
-1) FIND - Find, Lock, Wipe my device
-2) PREPARE - Ready device for Find my Mobile
this "prepare" option I am afraid to try, I am afraid it may be the one to enable reactivation lock. Clearly it is not required to actually find my mobile because I just click the "Find" button and it it finds it for me. So, what would be the use of "prepare"?
At any rate, we know that just creating a samsung account does not activate the lock. I never had a Samsung account before. When I set up this new phone I never did enter developer mode to turn on oem unlock but i did create the samsung account. It was after that I flashed version 1 of avicohh's rooted firmware and when I went into download mode, it said REACTIVATION LOCK: OFF, so creating the Samsung account does not turn it on.
avicohh said:
Hi Evryone.
Because I didn't found CWM or TWRP Recovery or any root method for the galaxy J5 J5108 and the J7 J7108, I made a pre-rooted firmwares for those models.
This firmware base on the hong kong firmware which include the Google apps, this a full firmware exactly like the original, except the root.
After flash you will see the SuperSU app in the app drawer.
Also, this firmware contains the bootloader from the china firmware which doesn't have frp lock.
The root include the binary files in the system, and a pathed boot. (from Android 6.0 or samsung 5.1.1 pathing the boot is necessary for the root work properly)
Flashing this firmware will not wipe data automaticly. you should not lose anything.
This file will work on any firmware/baseband/csc. you can always flash it like a stock firmware.
J5 - base on - J5108ZHU1APD2.
Android version: 5.1.1
J7 - base on - J7108ZHU1APD1.
Android version: 5.1.1
Downloads
J5
http://www.mediafire.com/download/o8hfu81j3j4irjt/J5108ZHU1APD2_Rooted_by_avicohh.exe
J7
http://www.mediafire.com/download/z7bh4sdmzqer6nb/J7108ZHU1APD1_rooted_by_avicohh_v2.exe
Installation instructions
Before flashing check the CROM Service status in Download mode, if it locked you will need to unlock the bootloader first with the app attached.
Install samsung usb drivers from here.
Download the self extracting 7z file above and extract it (just double tap) to some folder, you should receive a tar.md5 file.
Open odin 3 (attached in the zip)
Put the tar.md5 file in AP.
Put the device in download mode. (vol down + home + power button, and then click on vol up)
Connect your phone to usb and wait for odin detect the device.
Click start.
After it finish choose reboot system now in recovery.
Enjoy.
If you want to thank me for this work, you can do this by donating.. :good:
Click to expand...
Click to collapse
sir, you are awesome!!
I'll try to install in my J5108. I will give to my daughter. Is there a form to unroot the phone? Thanks!
Yes.
Just install stock rom.
http://updato.com/firmware-archive-select-model?record=A097D215549D11E6B055FA163EE8F90B

Help with Odin flashing FRP locked SM-T827V

Hello, I was recently given a Tab S3 (Verizon) by a friend, and it was FRP locked. When asked, the friend said that she had no Idea which account might have been on it, and none that she tried worked, so I was stuck. So far I have tried a lot, and most recently, I have been trying to use Odin to flash a Combo file that I found for this model, but it fails to flash, and the tablet states:
Code:
SW REV CHECK FAIL : [aboot]Fused 2 > Binary 0
A couple of questions:
1) What does this mean?
2) Is this because it is FRP locked?
3) If it is, am I SOL?
4) If not, am I SOL anyway with the FRP lock?
I have had some experience with android modding, so I'm not a total noob, but don't take that for granted, I may have missed something very stupid/obvious.
The current firmware is: Oreo/T827VVRS2BRJ1
The combo firmware is: Oreo (I think)/T827VVRU0AQB9
Odin reports FRP Lock is on
Well, I managed to get firmware to flash by getting the same version that is on the tablet currently, but the flashing did not help, because FRP lock is still on. I even went as far as to get a partition table file and completely nuke the nand, which was probably a stupid idea, but nevertheless, even that didn't work to remove the FRP lock. Any ideas?
Thanks, SciFI101
P.S. Also note that the firmware that flashed was not a combo file, I have no idea what the difference is, do I need a combo file to remove FRP?
Flash combination firmware and then remove the google account and delete the Google account on device administration. Flash back original firmware all done.
Which combo firmware should I flash? Any that I have tried have failed with the SW REV CHECK FAIL error.
Also, the stock recovery seems to be shagged, after the blue "Installing updates"/"No Command" screen, the screen goes almost entirely dark, but it is still the same blue screen with Andy in the middle. It still boots into the OS and download mode otherwise. flashing BL and/or AP doesn't seem to fix it

fastboot oem unlock not allowed! even after unlocking it in developer mode

Hello everyone
Recently I've hard reseted my lenovo Phab (pb1-750n) mistakenly before removing my google account and unfortunately I stocked in google FRP lock, I've searched many sites and seen many videos to bypass the FRP with no success.
Finally I found a russian forum that uploaded the Chinese version of device ROM, since the google apps are banned in China therefore updating the ROM from recovery mode succeed (I downloaded ROM and put it in the SD card, then update the ROM from recovery) and device got back alive again. (NO Google NO FRP )
but the second struggle wave slapped my face, (NO google apps NO joy ), for instance I downloaded Gapps and tried to install it by replacing stock recovery with TWRP, so in device, I turned on developer mode by tapping build number many times and turned on USB debugging and oem unlock, see, I turned on damn oem unlock!!! but in the fastboot when I run the
Code:
fastboot oem unlock-go
, the result ends in oem unlock not allowed report and
Code:
fastboot flash recovery TWRP.img
also failed due to the bootloader lock status. BTW international ROM seems to be all in Chines clouds and is not accessible for non Chines people to download them, at least I couldn't do it.
any idea what is wrong in here????? did Chines made ROM to be like that???? any chance to solve the issue???
this happens because you do not unlock the bootloader, just released to unlock
jeangraff30 said:
this happens because you do not unlock the bootloader, just released to unlock
Click to expand...
Click to collapse
well, after updating system to the 6.0.1, problem solved, it seems android 5.1.1 stock ROM for this phablet do not allow to unlock bootloader, I found it in a russian forum, they said so.
anyway thanks for reply.

Samsung C7 SM-C7000 Factory Locked Failed Root

Hello,
I've been trying to Root my Samsung C7 SM-C7000 phone but I keep getting the error that my phone is factory locked.
Is there a way to overcome this or unlock the phone?
I have read some threads about Enabling OEM Unlock in Developer Options, unfortunately this OEM Unlock is not available in my Developer Options menu no matter how much I tried getting it available by resetting dates.. etc.
Can anyone please help?
Can anyone help regarding this matter please??
Help Please!
Help Please!
@KHAWaNAWA
If option OEM unlock isn't offered in Developer options then phone's boot-loader can't get unlocked: Live with it.
Is it confirmed that OEM unlocking cannot be turned on on my device?
It's Samsung Galaxy C7 SM-C7000
Only to have said it: To root device's Android ( Android 6.0.1 ? ) it's not a prerequisite that phone's boot-loader got unlocked before.
The software on it is Android 8.0.0
I have tried to Root it and it said Factory locked.
KHAWaNAWA said:
I have tried to Root it and it said Factory locked.
Click to expand...
Click to collapse
You probably did it the wrong way.
Well in the download mode it shows me "Installation Failure" and under it
"You need to unlock your device to install a custom OS"
"For more information how to unlock visit samsung.com/cn"
I have even tried Rooting by going through recovery mode then selecting Reboot into Boot-loader, Same error.
@KHAWaNAWA
Look inside here.
Tried that too, same error still, phone is locked.

Question Sm-t227u mdm lock/rooting help

Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
SM-T227U is an American model wich doesn't have the OEM unlocking option, you could unlock using unofficial ways but those are not pretty "stable".
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
Click to expand...
Click to collapse
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
evan5935 said:
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
Click to expand...
Click to collapse
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
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If it has Mediatek chipset then you can use SP flash tool to format the tablet firmware and reflash it.
I would strongly recommend you to backup the NV DATA and NVRAM files before you format the tablet.
coocooguy246 said:
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
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You can follow this guide actually! ( https://forum.xda-developers.com/t/...220-t225-install-lsposed-magisk-mods.4406933/) it recommends just skipping the setup junk
I have found that many times, rooting methods work across different models of the same device unless there are some sort of major differences in chipsets or some sort of random change lol
The only thing that doesn't seem to work for our model is section V of the guide which is for the removal of the "bootloader is unlocked" screen at startup. so you will still need to press the power button on that screen to boot up. It's a tiny hassle, but otherwise no big deal in my personal opinion
Make sure to read all the way to the end of the root section (section 4) and especially remember step 7. I retried probably 4 times and even patched the entire AP file of the firmware for use in odin (doing this gives a second warning on Knox screen that it isn't samsung official fw then boots normally into the bootlogo screen) before realizing everything was going fine.. I recommend just using the patched Magisk boot.img first just because I find it unsightly
Just flash the boot.tar in the AP slot. Don't download any of the boot imgs from the guide because they are for the t220's and t225's. I'll link the one I made according to the guide below. It'll save you some time and you won't need to install zarchiver and Magick just to have it factory reset again lol. Just download the latest Magisk apk (26.1) from the official github (https://github.com/topjohnwu/Magisk/releases) and install it when you have completed the 2nd factory reset/the patched boot img install.

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