Recovery for Galaxy Tab Active 2 sm-t397u - Galaxy Tab General

I purchased the sm-t397u from ebay, but the seller did not tell me the Tablet is MDM locked. There was no return warning and I am trying to ship it back but so far it's a no go.
The tablet get's to a screen to enter a PIN with a message "this devices is managed by your organization". So obviously MDM is enabled.
I can boot into recovery mode via home+volume up + power but can't do factory reset - MDM prevents that.
Download mode is "disabled as well" - volume down + power only gets me to the Enter PIN screen again. So I was not able to try Odin + combination file
Is there anyway to recovery this or is it a brick? Seems I should be able to put files on microSD and read from recovery and/or possibly ADB (so far the USB connection has not worked, but I had Huawei drivers installed and need to try on a different laptop with clean Windows and Samsung USB only)
Thank you

OK, no money back but made some progress. I can now boot into the kiosk mode and can get ADB working. But still unable to remove the KNOX MDM enrollment - I can boot, do the setup it will kick in and I end up in kiosk mode.
Factory reset from the recovery mode is now possible, but it did not help.
Need some additional ideas please.
Thank you!

Hi.I have the same situation for a while.I saw a solution by rewriting the bootloader via jtag pins but seems too complicated and i lack the tools for that.How did you manage to enable kiosk mode ? did you manage to do something beyond that ?

Related

Restoring sm-g935f S7 Edge from SD Card?

Hi,
I have recently acquired a s7 edge from work but they appear to have locked down the phone using administrator profiles.
No google play (no way of side loading it will just not appear), No developer mode menu (when mode switched on), no way of booting into download mode (keys not work). I can NOT turn on USB debugging mode as the menu option does not appear when I turn it on (it says developer mode is turned on already). I can not do a restore to factory defaults as this option is greyed out and the restore mode option factory reset option does NOT blank the phone. The phone is not recognised by KIES or Samsung Smart Switch and as I can not boot into download mode or enable USB debugging I can not use ODIN/Root tools. I can side loads APK over the WIFI but I can NOT run any app to boot me into download mode as they require root but I am unable to root the phone.
I want to flash to stock firmware so I can use the phone to its full capacity. The only option I can think now is to boot into recovery mode and use the update from SD card option as I can boot into recovery mode.
Can someone provide me download links/instructions for the recovery file for sm-g935f s7 edge that will allow me to flash to stock firmware using the update from SD card option in recovery mode.
Matthew
matthewdfreeman said:
Hi,
I have recently acquired a s7 edge from work but they appear to have locked down the phone using administrator profiles.
No google play (no way of side loading it will just not appear), No developer mode menu (when mode switched on), no way of booting into download mode (keys not work). I can NOT turn on USB debugging mode as the menu option does not appear when I turn it on (it says developer mode is turned on already). I can not do a restore to factory defaults as this option is greyed out and the restore mode option factory reset option does NOT blank the phone. The phone is not recognised by KIES or Samsung Smart Switch and as I can not boot into download mode or enable USB debugging I can not use ODIN/Root tools. I can side loads APK over the WIFI but I can NOT run any app to boot me into download mode as they require root but I am unable to root the phone.
I want to flash to stock firmware so I can use the phone to its full capacity. The only option I can think now is to boot into recovery mode and use the update from SD card option as I can boot into recovery mode.
Can someone provide me download links/instructions for the recovery file for sm-g935f s7 edge that will allow me to flash to stock firmware using the update from SD card option in recovery mode.
Matthew
Click to expand...
Click to collapse
Any help, no replies to my question?
matthewdfreeman said:
Any help, no replies to my question?
Click to expand...
Click to collapse
Dish you solve it is have same issue phone boots up asks password factory reset is not an option it says mdm disabled by factory reset
exactly same problem with me
exactly same problem with me
any one have solution ???
restless316485 said:
Dish you solve it is have same issue phone boots up asks password factory reset is not an option it says mdm disabled by factory reset
Click to expand...
Click to collapse

Bricked A2017G B03 - help please

Hello!
As title says i bricked my Axon :crying:
I followed http://forum.xda-developers.com/showpost.php?p=68738854&postcount=100 (and the german one that linked to this one) but couldnt do the fastboot unlock.
So i couldnt finish this and my phone required a pin number to start android: bootet and started up but wanted a pin code to start/enter system.
Wasnt able to fix that with googling for answers so i went back to edl mode and rewrote my backup boot/recovery images with axon7backup.
Had no errors with that but it wont start now:
After the ZTE Logo the display goes black but it connects as "handset diagnostic interface (DFU) (ComX)" to my computer.
I fiddled around with driver installing etc and forced the HS-USB QDLoader 9008 on it but no luck, axon7backup/root can not connect.
When i did the actual flashing yesterday it never connected with the hold both vol-keys and connect usb way either, always had to reboot into edl via adb.
I cant boot anything else (no twrp/recovery) it just goes to the diagnostic interface mode.
Thanks in advance
you can try to get into adb mode with this:
- power off your device
- hold the vol down key while plugin in the usb-c cable (connected to your pc)
- keep holding
- you should get a white box with FTM factory test mode
- you are free to use adb again - so you can get into edl mode as well....
for pin part that'S normal while unlocking your device encryption gets deleted and you have to abort and factory reset your device in twrp....
Starvirus said:
you can try to get into adb mode with this:
- power off your device
- hold the vol down key while plugin in the usb-c cable (connected to your pc)
- keep holding
- you should get a white box with FTM factory test mode
- you are free to use adb again - so you can get into edl mode as well....
for pin part that'S normal while unlocking your device encryption gets deleted and you have to abort and factory reset your device in twrp....
Click to expand...
Click to collapse
Thanks. I tried it but it wont go to FTM. Only goes to diagnostic com port.
It seems i cant even turn it off. The little red light on the front is on the whole time .
sadly the disadvantage of a built in battery, so you have to wait till the battery is empty and try my instructions then....if it's not realy off it won't work, the mode you are currently in you usually only reach if you switch it on while holding both volume buttons, the edl mode is sadly not reachable with a key combination directly on G models.
adb don't show your device?
Starvirus said:
sadly the disadvantage of a built in battery, so you have to wait till the battery is empty and try my instructions then....if it's not realy off it won't work, the mode you are currently in you usually only reach if you switch it on while holding both volume buttons, the edl mode is sadly not reachable with a key combination directly on G models.
Click to expand...
Click to collapse
Oh ok. I expected ftm to work from vol-down and power-button till restart.
@adb: sadly no connection possible since it goes straight to Comport Connection.
Edit:
Couldnt make that work. It was off and i connected the usb. So it showed me the loading battery picture where i cant do anything. held the vol-down the whole time. But as soon as it had some battery it went straight to comport-connection again
im sorry to say, but ur device is bricked to a degree where you would need ZTEs Flashtool to fix it. Unfortunately we dont have that tool, so you might have to send it in
i have the same exact problem :'(
Have u been able to fix it?? I'm in a situation that i cant even send it to ZTE to fix it :'(
nsabir said:
i have the same exact problem :'(
Have u been able to fix it?? I'm in a situation that i cant even send it to ZTE to fix it :'(
Click to expand...
Click to collapse
Hi,
couldnt fix it myself so i had to send it in.
Unless some tool/rom was released in the last few months to fix it yourself i would guess your device is bricked.
Hi I have almost the same problem, I tried to unlock bootloader and now I don't have the recovery, I can boot and use my mobile but I can't restore it or update it because I don't have the recovery
I try whit axon7tool to restore the recovery but I got a error.
MaxRink said:
im sorry to say, but ur device is bricked to a degree where you would need ZTEs Flashtool to fix it. Unfortunately we dont have that tool, so you might have to send it in
Click to expand...
Click to collapse
Hi, do you have any idea, if there will be such a flashtool to work with DFU mode? I'm thinking that there are a lot of guys have bricked their devices (including me).
((

Loads of trouble with removing FRP from A5 2017 (A520F)

So, this has been giving me lots of trouble. The phone is locked with FRP. (By the way I am a complete noob). I tried to flash(root? what is it called?) the phone with CF-Auto-Root but it gave me a "Custom Binary(RECOVERY) Blocked By FRP Lock" in the Odin mode. I tried flashing with TWRP also and I got the same thing. I obviously cannot access the phone to remove the "OEM protection", which is apparently the fix. Also, excuse me if I'm going about this the wrong way and there is a much simpler method of removing the FRP from my phone. Thanks
Download the Smart Swtich and connect phone with USB
Make sure all samsung USB drivers are installed
Then start SS and press MORE button and select Emergency Software Recovery wait about 1Hour Maybe less to firmware download and the phone will boot but u need to enter your gmail and password to acess it
Press Thanks if it works
Cheers

Issues with Recovery Mode, Bootlooping, Flashing, EDL, and ADB Commands

Not sure how to title this forum post, but this is the best I got. Forgive my ignorance and lack of knowledge on these topics.
I was trying to root my Axon 7 mini. After some searching to find out how to unlock the bootloader (like needing JDK, older Android SDK version to run android.bat, etc.), I finally got it to work. Ran Recovery to "apply update from SD Card" (can not remember the file right now) and was then ready to load TWRP Recovery. When I rebooted to the recovery TWRP image, it told me something failed and the phone had to be factory reset. I took my SD card out in fear of my data being deleted and "accidentally" clicked the power button. It then reloaded with a password prompt where I typed some random password (1234 because I never set a pin password nor knew what to do here), clicked submit, and then gave me some error; now my phone doesn't work.
The Problem:
- I can enter bootloader, sometimes, but can only run fastboot commands; adb device does not detect phone so can't run adb commands (always says the server is old or something and reloads daemon successfully but never finds my device regardless). Also, I don't think I can get it to run in EDL mode; MiFlash gives out errors too when trying to flash recovery images.
- Recovery mode doesn't appear or work; not sure if the MiFavor command prompts on the phone is recovery or not, but it's safe to say this no longer appears. This is also where I believe the phone bootloops. I can get the fastboot commands to flash a TWRP recovery, but it never actually enters the TWRP dashboard.
- Can not turn off the phone... I think. None of the command options that appear on-phone shut it off; however, when the screen does stay black, I'm not sure if it's in EDL mode or plainly off.
- Device Manager shows the phone as different stuff (namely Kedacom USB Device and Portable Devices/MTB USB Device). Sometimes Qualcomm appears, but it depends. More often than not, when my device does appear, there's either an error code (like Code 10, Code 43) and/or the device is grayed out.
Conclusion:
I just want to get my phone to work normally again, if possible. Currently, I locked the oem to see if fastboot commands could still work and now I'm stuck at the ZTE logo, so can't try to unlock it right now. What are the proper tools, drivers, programs, etc I need to get this phone back to normal? I've scoured the web and these forums for 2 days now with no luck and lots of either missing info or obscure info.
I bought this at Best Buy, so I'm assuming it's US Axon7 Mini version in terms of drivers (not sure if the box specifies any info that could be useful here).
Un-brick Axon 7 Mini
Dear all,
I experienced the same issue with my phone after I tried to flash it with custom ROMs and recovery.
I thought I lost it as I was not able to enter adb mode (not recognized on the PC) or even not able to enter EDL mode with the button combination so not able to do anything with it.
Only watch it boot and display the ZTE logo.
After some research, here is what I had to do to get it recovered.
First thing you need to get is an EDL cable.
I let you search on your favorite site. Mine was a Generic eDL Deep Flash Qualcomm 9008 Cable 2 in 1 for Z3 X/Octopus.
Until you receive it, make sure you have the latest Qualcomm drivers installed on your PC.
You can find it easily.
Then, connect your phone and your PC with the EDL cable.
Press the button on your EDL cable (there should be one) for a few seconds and keep it pressed.
Then, press the power button and keep it pressed for at least 20 seconds.
At this stage, you should have both buttons pressed and after some time, you should feel the phone rebooting.
After 20 seconds, release the power button.
Then, after 10 other seconds, release the EDL cable button.
At this stage, your phone screen should stay black and your phone should appear in the device manager as Qualcomm USBHUB (or somehting similar)
You are in EDL mode and should be able to perform a recovery flashing using tuliptool.
Then I followed the steps I found here:
https://forum.xda-developers.com/axon-7-mini/how-to/updating-uk-version-zte-axon-7-mini-to-t3717933
If you are still stuck, pm me.
Be patient, all will be fine,
mariegalante55 said:
Dear all,
I experienced the same issue with my phone after I tried to flash it with custom ROMs and recovery.
I thought I lost it as I was not able to enter adb mode (not recognized on the PC) or even not able to enter EDL mode with the button combination so not able to do anything with it.
Only watch it boot and display the ZTE logo.
After some research, here is what I had to do to get it recovered.
First thing you need to get is an EDL cable.
I let you search on your favorite site. Mine was a Generic eDL Deep Flash Qualcomm 9008 Cable 2 in 1 for Z3 X/Octopus.
Until you receive it, make sure you have the latest Qualcomm drivers installed on your PC.
You can find it easily.
Then, connect your phone and your PC with the EDL cable.
Press the button on your EDL cable (there should be one) for a few seconds and keep it pressed.
Then, press the power button and keep it pressed for at least 20 seconds.
At this stage, you should have both buttons pressed and after some time, you should feel the phone rebooting.
After 20 seconds, release the power button.
Then, after 10 other seconds, release the EDL cable button.
At this stage, your phone screen should stay black and your phone should appear in the device manager as Qualcomm USBHUB (or somehting similar)
You are in EDL mode and should be able to perform a recovery flashing using tuliptool.
Then I followed the steps I found here:
https://forum.xda-developers.com/axon-7-mini/how-to/updating-uk-version-zte-axon-7-mini-to-t3717933
If you are still stuck, pm me.
Be patient, all will be fine,
Click to expand...
Click to collapse
I had a feeling an EDL cable was my only option left given everything I've looked up and the multiple methods I've tried. Wanted to avoid spending money on one but doesn't look like I have a choice given the circumstances - oh well. Regardless, thank you for the response and advice. Have to wait a while, though, to get the cable and test to see if this works.
If anyone else ever ends up in the same royally screwed situation as me, getting an EDL cable - or DIY one if you wanna be cheap and are confident enough to do so - is probably your saving grace.
Kuma21 said:
I had a feeling an EDL cable was my only option left given everything I've looked up and the multiple methods I've tried. Wanted to avoid spending money on one but doesn't look like I have a choice given the circumstances - oh well. Regardless, thank you for the response and advice. Have to wait a while, though, to get the cable and test to see if this works.
If anyone else ever ends up in the same royally screwed situation as me, getting an EDL cable - or DIY one if you wanna be cheap and are confident enough to do so - is probably your saving grace.
Click to expand...
Click to collapse
K, I can get tuliptool to work and run command, but i keep getting a "Failed: Unkown Error" response everytime i run a command. Can't unlock my bootloader, nor write a recovery disk due to this error. does anyone have any idea why this happens?

Samsung S8 - Custom binary blocked by FAP lock

Hello all,
I have been a long-time peruser of this site, but this is the first time I couldn't find a good answer to my issue.
My phone (SM-G950F) ran out of power, I didn't notice till after it died completely. When I tried to turn it on while charging it displays the message "Custom binary blocked by FRP lock" on the logo screen, then turns off. If plugged in to a charger, it'll just keep booting like that in a loop. I'm not even able to access recovery, only the download mode. I'm not against factory resetting my phone, however I have important data that in the phone storage I need to keep. I have searched online and youtube with no success.
Any ideas or suggestions will be much appreciated.
NOTE: Before the phone battery died, i wasn't tinkering with any setting that may lead to this; just regular use
flash it with odin
Flash official firmware..but make sure to use HOME_CSC not CSC...to keep your data...then boot direct to download mode after flashing ia done and flash twrp recovery
I have same issue bot Windows dosn't see my phone (drivers installed) so I'm unable to flash it. I can see only unrecognizable device in windows device manager. Is there any hope to fix it. Please help
mic225 said:
Flash official firmware..but make sure to use HOME_CSC not CSC...to keep your data...then boot direct to download mode after flashing ia done and flash twrp recovery
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How to rid rmm and kg without 7 days?

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