Help with resetting tab s3 (t825) - Samsung Galaxy Tab S3 Questions & Answers

Hi Everyone, I purchased a Second Hand T825 S3 tablet from Ebay. The seller sold it for parts as they don't know what the lockscreen PIN is. Currently when I turn on the tablet it asks for the PIN code. I can access the Stock recovery but when i try to factory reset is says "MDM does not allow factory reset", also when I try to go into download mode it says Binary download mode blocked by MDM.
Can anyone help me out to get this working?
Thanks

SICKNOSIS said:
Hi Everyone, I purchased a Second Hand T825 S3 tablet from Ebay. The seller sold it for parts as they don't know what the lockscreen PIN is. Currently when I turn on the tablet it asks for the PIN code. I can access the Stock recovery but when i try to factory reset is says "MDM does not allow factory reset", also when I try to go into download mode it says Binary download mode blocked by MDM.
Can anyone help me out to get this working?
Thanks
Click to expand...
Click to collapse
Difficult to bypass if MDM will not allow anything to flash.
Does it allow stock firmware to be flashed?
You could try putting in the pin over and over. On some devices this will reset the device after many failed attempts, 15 plus maybe more.

SICKNOSIS said:
Hi Everyone, I purchased a Second Hand T825 S3 tablet from Ebay. The seller sold it for parts as they don't know what the lockscreen PIN is. Currently when I turn on the tablet it asks for the PIN code. I can access the Stock recovery but when i try to factory reset is says "MDM does not allow factory reset", also when I try to go into download mode it says Binary download mode blocked by MDM.
Can anyone help me out to get this working?
Thanks
Click to expand...
Click to collapse
Hey, did you figure out a way to get past the MDM lock ?

Related

[Q] SGS2 on O2 contract asking for a password in recovery mode

Hi,
I got my SGS2 from O2 yesterday, went to check recovery mode is working ok and it is asking for a password. Has anyone else on O2 had this? For the short time I had my SGS on Gingerbread I got asked for the same when trying recovery mode.
Just tried on my unlocked T-Mobile phone from CPW and it goes in fine.
Blue text, Android system recover (3e), and options to reboot, apply update.zip, wipe data/factory reset and wipe cache partition.
Also this was done on a rooted phone although im pretty sure i also tried it before rooting and it still worked then.
Password is your screen unlock password.
It turns out it is because I had the screen lock set to a PIN.
Yep, If you have either a screen lock PIN or password set the recovery rom prompts you for them (although if you set a pin it still refers to it as a password in the recovery rom which can be confusing).
However if you set a pattern lock then no prompt is given.
nice to know
Thanks for the info
I was sure my recovery got locked by the store I got it from ... (If its possible)
After replacing my Email.apk without any security and canceling the PIN all is well.
ilanshp said:
I was sure my recovery got locked by the store I got it from ... (If its possible)
After replacing my Email.apk without any security and canceling the PIN all is well.
Click to expand...
Click to collapse
hey..man..
i got the kind of same question...
god..i deleted email.apk last time..(is that all about email.apk???)
and then i set a PIN screen lock,it just don't work.
whatever i type the password i just set,it just say "wrong"!
and then i fresh my i9000 by odin(without wipe before this)
when it finish,it just fxcking telling me to "confirm password" after auto reboot.
wtf...now i cant get in to recovery.
what can i do????????????help me plz....i dont want my sdcard data gone..
(sry for my ****ty english)
scottishlad80 said:
Hi,
I got my SGS2 from O2 yesterday, went to check recovery mode is working ok and it is asking for a password. Has anyone else on O2 had this? For the short time I had my SGS on Gingerbread I got asked for the same when trying recovery mode.
Click to expand...
Click to collapse
hey..man..
i got the kind of same question with my i9000...
god..i deleted email.apk last time..(is that all about email.apk???)
and then i set a PIN screen lock,it just don't work.
whatever i type the password i just set,it just say "wrong"!
and then i fresh my i9000 by odin(without wipe before this)
when it finish,it just fxcking telling me to "confirm password" after auto reboot.
wtf...now i cant get in to recovery.
what can i do????????????help me plz....i dont want my sdcard data gone..
(sry for my ****ty english)
I have the same problem here, but I had no unlock code and still it asks me to "confirm password"....

S5 plus (901f) blocked by samsung account

Hi there. Problem:
Bought a second hand S5 plus (901f) and booted up. All went well till i got to screen for logging into samsung account NOT google. It stated that the phone is blocked because of wrong factory reset (dont know exact phrase because i have Dutch language). Previous owner wont give his account info.
How to resolve? Flashing original firmware from sammobile? Getting root and flas custom recovery and rom? Or can it be bypassed in a simple way? Reset to factory in original recovery dont work.
Please help
Hi, go to ebay and buy the service there to fix it for you any of above mentioned wont work.
Abnormal factory reset?
Probably factory reset protection?

Is it possible to bypass the pin code on a phone without fastboot unlock or developer mode enabled?

I am working on a phone for someone that had a heart attack and as a result has forgotten his pin code on his phone. I know I can factory reset but I'm trying to find a way to get back into the phone to recover all his data. I can get into download mode so I was wondering if there is any kind of firmware hack that can be installed in order to just ignore pin altogether. I don't think the data is encrypted. We have been able to recover his gmail account but the lock screen never shows a "forgot your pin?" I tried using find my phone but it says it can locate the phone but that find my phone isn't running. Any help would be really appreciated.
oneway2k said:
I am working on a phone for someone that had a heart attack and as a result has forgotten his pin code on his phone. I know I can factory reset but I'm trying to find a way to get back into the phone to recover all his data. I can get into download mode so I was wondering if there is any kind of firmware hack that can be installed in order to just ignore pin altogether. I don't think the data is encrypted. We have been able to recover his gmail account but the lock screen never shows a "forgot your pin?" I tried using find my phone but it says it can locate the phone but that find my phone isn't running. Any help would be really appreciated.
Click to expand...
Click to collapse
As far as I know, even with those enabled you can't bypass login pin code. If that was the case, you could take anyone's phone, factory reset it, and use it.
? I thought that was kinda the whole point of the existence of XDA. I've already found that Dr. Fone can factory reset and take over a phone. There must be something that can be done in download mode.

Tab S6: Factory Reset with Stock ROM and still getting "protected by Knox Cloud Service"

Recently purchased a used Galaxy Tab S6. I was warned it had a warning about the bootloader being unlocked. No big deal. The seller couldn't remember his Samsung account credentials so we couldn't factory reset at time of purchase via Settings. No big deal. I went into Download Mode and relocked the bootloader. I went into Recovery Mode and Factory Reset.
Then I ran into "This tablet is protected by Know Cloud Service. To continue setup, connect to a wi-fi or mobile network." I've done that (since I can't skip the step) and get the dreaded "Can't create work profile" error and that's as far as the set up will go.
So I used Odin to flash the latest stock ROM and factory reset again and wiped the cache and I'm still having that problem.
In download mode, I've confirmed that Knox has been tripped.
I've googled like mad and I'm not finding a solution. Can anyone help me out? I'd prefer to stay on Stock ROM so there are no hardware issues (particularly with the SPen) as I'm planning to use this device extensively for note-taking (with OneNote). However, I'm open to custom ROM if that's my best/easiest/simplest route.
Thanks in advance!
If you're able, unlock the bootloader again. When you flashed with Odin, did you use the CSC or HOME_CSC file?
V0latyle said:
If you're able, unlock the bootloader again. When you flashed with Odin, did you use the CSC or HOME_CSC file?
Click to expand...
Click to collapse
I used CSC. As I understand it, that is the "deeper" reset option.
snick17 said:
I used CSC. As I understand it, that is the "deeper" reset option.
Click to expand...
Click to collapse
Correct, that wipes user data.
Unlock the bootloader again, which will wipe the device (again), and see if it's removed the FRP. If not, you should be able to flash TWRP, from which you should be able to flash this to disable the FRP.
I can't access the developer options because I can't get through the setup wizard. So I can't flip the OEM Unlocking so the download mode doesn't give me the option to unlock. I can connect to ADB via the Recovery Mode but Fastboot doesn't see it so I can't do "oem unlock." Are there any other methods to unlock it? My friend Google hasn't found any yet.
Seller was able to login to both his Google and Samsung accounts and remove the device from them. That got me through the 100% Know Enrollment Service before it hung up in the "update" portion again. He was also able to send a message to the tablet from the Samsung account to try and release it further but, of course, since I've wiped it, that message can't get through.
I'm getting desperate. I might have bought a paperweight! Any once else have a suggestion?
Checked with the seller. He bought it from Kijiji as well from the original owner. It's always been a personal device, never an institutional one.
Last night's searching of the internet determined that the device is in "prenormal" status so I'm just going to wait 7 days and reboot. That might be sufficient. Nothing to lose at this point.

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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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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