Related
EDIT: Problem solved!!!
I used this tutorial: https://forum.xda-developers.com/sa...very-samsung-sm-a510f-fd-exynos7580-t3314399/ to install TWRP and root my SM-A510FD on 6.0.1 . My device was rooted and working perfectly until stupid me decided to turn off "OEM Unlock" and i restarted my phone and now it says "custom binary blocked by frp lock" The only thing i can do is go to the Download mode. I tried to use Samsung Kies and Smart Switch when in Download mode but they tell me that my device is not supported. But Odin detects my device and says "Added!!". I am currently downloading the stock firmware for my device from Sammobile and i plan to flash it using Odin.
- Will putting the firmware file in the AP section of odin and clicking start work to fix the problem? (I do not care if i will loose data)
- If this will not work is there anything else that i can do? I can't take it to repair because Knox is tripped and i do not have my receipt. If my phone is bricked forever please tell me so i don't waste my time trying to fix it.
Thank you so much in advance! Any help would be extremely appreciated!!
CrystalGTX said:
I used this tutorial: https://forum.xda-developers.com/sa...very-samsung-sm-a510f-fd-exynos7580-t3314399/ to install TWRP and root my SM-A510FD on 6.0.1 . My device was rooted and working perfectly until stupid me decided to turn off "OEM Unlock" and i restarted my phone and now it says "custom binary blocked by frp lock" The only thing i can do is go to the Download mode. I tried to use Samsung Kies and Smart Switch when in Download mode but they tell me that my device is not supported. But Odin detects my device and says "Added!!". I am currently downloading the stock firmware for my device from Sammobile and i plan to flash it using Odin.
- Will putting the firmware file in the AP section of odin and clicking start work to fix the problem? (I do not care if i will loose data)
- If this will not work is there anything else that i can do? I can't take it to repair because Knox is tripped and i do not have my receipt. If my phone is bricked forever please tell me so i don't waste my time trying to fix it.
Thank you so much in advance! Any help would be extremely appreciated!!
Click to expand...
Click to collapse
Just flash stock firmware and you are good to go, if it wont boot turn it off, reboot to recovery(stock) and wipe data & factory reset, later you can again flash twrp and root but dont turn off OEM unlock.
Antonio GT-I8730T said:
Just flash stock firmware and you are good to go, if it wont boot turn it off, reboot to recovery(stock) and wipe data & factory reset, later you can again flash twrp and root but dont turn off OEM unlock.
Click to expand...
Click to collapse
Thank you so much for replying man, i was f*cking panicking! I'm gonna try that when the download finishes. Thanks again! :good:
Antonio GT-I8730T said:
Just flash stock firmware and you are good to go, if it wont boot turn it off, reboot to recovery(stock) and wipe data & factory reset, later you can again flash twrp and root but dont turn off OEM unlock.
Click to expand...
Click to collapse
What about when my j7 says custom binary blocked by frp lock(boot.img) secure fail:kernel. It will boot into recovery, and download. Factory wipe does nothing, so recovery mode is useless to me at the moment. my computer detects the phone enough to say Unknown USB device (Device Descriptor Request Failed) driver error as the label of the phone. No matter what mode I'm in. Drivers are up to date, odins good, usb port, computer, and data cords are all good. I've flashed other phones and hooked this one up to another pc to see that it says the same thing. How do I get the computer and/or odin to agree with my phone enough to pick it up as a good device?
"OEM Unlocking". Check the box. This SHOULD disable the FRP lock as well. ??
SO before i was gonna flash custom recovery i turned on OEM Unlocking and usb debugging. I have done this many times before.
But now i get the Custom binary FRP lock. This happened right after i turned OEM unlocking on and restarted I didn't do anything els. Isnt this how you are suppose to turn the FRP lock off...
Because it has always worked before my phone isa J500FN
Now i have to recover the phone kies doesnt support my modell.. Been like this for a half year. So need to use Odin and flash default firmware i'm doing 5.1.1 I believe the marshmallow os did this. Or I have setup some protection against it so I have to turn it off. Iv read that samsung app have a way to turn off FRP and your google account got it too. So have to check into that later if this flash will complete fine I hope.
wackyleaks said:
SO before i was gonna flash custom recovery i turned on OEM Unlocking and usb debugging. I have done this many times before.
But now i get the Custom binary FRP lock. This happened right after i turned OEM unlocking on and restarted I didn't do anything els. Isnt this how you are suppose to turn the FRP lock off...
Because it has always worked before my phone isa J500FN
Now i have to recover the phone kies doesnt support my modell.. Been like this for a half year. So need to use Odin and flash default firmware i'm doing 5.1.1 I believe the marshmallow os did this. Or I have setup some protection against it so I have to turn it off. Iv read that samsung app have a way to turn off FRP and your google account got it too. So have to check into that later if this flash will complete fine I hope.
Click to expand...
Click to collapse
Kies is deprecated now i think it's SmartSwitch
Taivotat2 said:
Kies is deprecated now i think it's SmartSwitch
Click to expand...
Click to collapse
SmartSwitch doesn't support j500fn ether.
wackyleaks said:
SmartSwitch doesn't support j500fn ether.
Click to expand...
Click to collapse
Just because it says it doesn't support, it doesn't mean it can't download the firmware. Use the upgrade option and put in your model number and serial and it will download the the correct firmware.
Hello, may I ask about the A20e (SM-A202F) here in this A20 forum?
My A20e does not show an option for unlocking the bootloader (well, I thought the "OEM unlocking" would be the term to search for as I know it from my S7).
I started the A20e the first time after unboxing, with no SIM card and no WiFi connected. The date (never updated) was a day in March 2019.
I then even set the date back by 4 weeks and rebooted the phone (as was suggested for the A20, if I remember correctly, if problems with a non-existing or greyed-out OEM unlocking option appear).
Still, no OEM unlocking option is available in the developer options (not even greyed out).
Can other A20e (SM-A202F) users please confirm this? Or do you have that option?
Maybe it's not needed on the A20e, but who knows?
Phone info:
One UI 1.1
Android 9
Baseband ...ASF3
Kernel 4.4.111-16308935
Buildnumber ...ASG1
SE enforcing ..._0004
Knox version 3.3 API level 28 TIMA 4.1.0
Provider ...XKN DBT (unbranded)
Security patch Jul-2019 Release 1
7wells said:
Hello, may I ask about the A20e (SM-A202F) here in this A20 forum?
My A20e does not show an option for unlocking the bootloader (well, I thought the "OEM unlocking" would be the term to search for as I know it from my S7).
I started the A20e the first time after unboxing, with no SIM card and no WiFi connected. The date (never updated) was a day in March 2019.
I then even set the date back by 4 weeks and rebooted the phone (as was suggested for the A20, if I remember correctly, if problems with a non-existing or greyed-out OEM unlocking option appear).
Still, no OEM unlocking option is available in the developer options (not even greyed out).
Can other A20e (SM-A202F) users please confirm this? Or do you have that option?
Maybe it's not needed on the A20e, but who knows?
Phone info:
One UI 1.1
Android 9
Baseband ...ASF3
Kernel 4.4.111-16308935
Buildnumber ...ASG1
SE enforcing ..._0004
Knox version 3.3 API level 28 TIMA 4.1.0
Provider ...XKN DBT (unbranded)
Security patch Jul-2019 Release 1
Click to expand...
Click to collapse
Someone who's already rooted.
https://forum.xda-developers.com/showpost.php?p=80113161&postcount=77
Or
https://forum.xda-developers.com/showpost.php?p=81125253&postcount=180
It also happened with me. I will try to explain what I did to bypass this waiting. First, you got to format everything, cache and data, then reboot your phone and do all of that configuration, but don't turn your wi-fi ON or connect to the internet, go to the date & time settings, set the date to 7 (or more) days back from today and then go to the system updates and try to update your phone (now connected to the internet). Whatever happens now doesn't matter, the important thing is to make sure that your phone got a registry that you tried to update the system 7 days ago. You may now reboot your phone, after rebooting set the date for the current day and turn on developer options, you will see the bootloader option.
Thank you!
Coming back to this (moved) thread after a while, I wonder if unlocking the bootloader will trip Knox. So, will it?
Are there any ways to root the Samsung A20e without tripping Knox?
7wells said:
Thank you!
Coming back to this (moved) thread after a while, I wonder if unlocking the bootloader will trip Knox. So, will it?
Are there any ways to root the Samsung A20e without tripping Knox?
Click to expand...
Click to collapse
I'm sorry but Samsung Knox was made to be tripped. If you touch your recovery partition the Knox will be broken.
Do only changes of the recovery trip Knox?
Is rooting the A20e possible without tripping Knox? (I guess, no)
re-unlock A20e (europa)
Hi, I have problem with re-unlocking bootloader on Galaxy A20e (SM-A202F) after accidental locking in download mode.
- the OEM unlocking option is not displayed in the developer options (it is not possible even after moving the date back 7+ days and clicking on updates and restart mobile)
- After turn on, hold vol- and vol+ and plug in USB cable attached to pc I don't have the option to choose the unlock bootloader by long pressing vol +, only Volume up: Continue and Volume down: Cancel (restart phone)
How to re-unlock bootloader on this mobile? Now I can flashing only original Samsung firmware via Odin, but I need root...
Thanks for tips
.
TWRP now available
https://forum.xda-developers.com/ga...overy-twrp-3-4-0-0-galaxy-a20e-a202f-t4141767
re-unlock locked bootloader A20e (europa)
lebigmac said:
I had the same problem. Here is my solution. I hope it helps. Click my thanks button if it worked for you. Good luck!
https://forum.xda-developers.com/showthread.php?p=83209365#post83209365
Click to expand...
Click to collapse
The procedure does not work. I also performed a wipe cache and a wipe data / factory reset. Then I connected wifi and waited 10 days. Nevertheless, the OEM unlock option is not available in the debug options, and the "Volume long press Device unlock mode" option is not available after entering the download mode. Can anyone advise?
.
lebigmac said:
Hi. Does it say 'KG state: prenormal' on the top left corner when you go into Download mode?
What firmware did you try it with?
Also you shouldn't have to wait 10 days after connecting to a wifi hotspot for it to validate. On my device the validation process is done within a minute.
Click to expand...
Click to collapse
Hi, KG state: prenormal, FRP lock: OFF, OEM Lock: ON(U1), firmware is original XEZ-A202FXXU3ASL4-20200120200351 (Android 9). The last procedure, waiting 10 days, was the last of many I tried.
johnny_nb said:
The procedure does not work. I also performed a wipe cache and a wipe data / factory reset. Then I connected wifi and waited 10 days. Nevertheless, the OEM unlock option is not available in the debug options, and the "Volume long press Device unlock mode" option is not available after entering the download mode. Can anyone advise?
Click to expand...
Click to collapse
set date back 2 weeks
physwizz said:
set date back 2 weeks
Click to expand...
Click to collapse
Hi, I tried to return the date in 7, 14, 30 days and a few months, but without success. I have Samsun Galaxy A20e SM-A202F
Tried to clicking through threads and used search... but seems I am blind.
I have SM-A202F CSC ROM and dreaming to have CSC DBT.
How to change active CSC?
Tried with Odin:
Code:
A202FXXU3BTI7_A202FOXM3BTI7_DBT
Then realized seems Multi CSC because ROM have also OXM ""Region""...
Second attempt with Combination Firmware...
Code:
COMBINATION_FAC_FA90_A202FXXU3ATD1_FAC3ATD1_CL15768665_QB30267852_REV00_user_mid_noship.tar.md5
Here Odin failed... and I saw funny warning text on screen...
Thought this will be easy 5 minute flash and voila ready DBT...
Thanx in advance.
Best Regards
Seems I managed my problem.
First mistake was to flash 5 files... with Home...
Now I have DBT, after using SIM Card from Germany and flashed 4 files and pressed Button during Settup and... magic...
Tried before without SIM card...
Only as info.
Best Regards
adfree said:
Seems I managed my problem.
First mistake was to flash 5 files... with Home...
Now I have DBT, after using SIM Card from Germany and flashed 4 files and pressed Button during Settup and... magic...
Tried before without SIM card...
Only as info.
Best Regards
Click to expand...
Click to collapse
Good news
Try this
https://forum.xda-developers.com/galaxy-a20/development/a20e-testers-t4183683
cizordj said:
I'm sorry but Samsung Knox was made to be tripped. If you touch your recovery partition the Knox will be broken.
Click to expand...
Click to collapse
I managed to do the "bootloader", to log in in "download" mode and to have the "root of my A20e.. without major problems.... but the whole thing is almost useless because anyway you can not change (for what I need) the information of the phone (imei, SN... etc etc etc),, and I believe that it depends precisely on the new security it is equipped with, in accordance withGoogle.......I won't hide from you that I would gladly install the good old Android 4.4......
johnny_nb said:
re-unlock A20e (europa)
Hi, I have problem with re-unlocking bootloader on Galaxy A20e (SM-A202F) after accidental locking in download mode.
- the OEM unlocking option is not displayed in the developer options (it is not possible even after moving the date back 7+ days and clicking on updates and restart mobile)
- After turn on, hold vol- and vol+ and plug in USB cable attached to pc I don't have the option to choose the unlock bootloader by long pressing vol +, only Volume up: Continue and Volume down: Cancel (restart phone)
How to re-unlock bootloader on this mobile? Now I can flashing only original Samsung firmware via Odin, but I need root...
Thanks for tips
Click to expand...
Click to collapse
--------
" - the OEM unlocking option is not displayed in the developer options "....: METTI UN ACCOUNT GOOGLE NEGLI ACCOUNT DEL TELEFONO
Sandro111 said:
--------
" - the OEM unlocking option is not displayed in the developer options "....: METTI UN ACCOUNT GOOGLE NEGLI ACCOUNT DEL TELEFONO
Click to expand...
Click to collapse
-Disable Auto System Update
-Then disable Automatic date and time (Found in General Management) > then set the time back 14 days
-Go to software update then check for update and wait till it registers the device on server
-Once it's registered the OEM Unlock should be visible in the Developer Options
I seen the recommendation is to turn USB debugging and OEM lock off under developer options to play fortnite on our device with magisk. What I was wondering is with my bootloader unlocked, which it is, I can uncheck OEM lock, but would it be okay after a reboot? I just didn't want to uncheck it, and then get stuck or not be able to boot. I was curious if someone might have tried already. Thx
By the way for anyone wanting to know, I turned OEM unlock off w/ a unlocked bootloader & device successfully booted up with switch still in off position.
I have a Samsung Galaxy Tab A (2020, SN-T307U) that I got from work. It's an old Doordash tablet that Doordash didn't want back, so I'm trying to reset it and it's driving me crazy. I have followed so many tutorials trying to get this thing to work, I keep getting caught on something.
- Simply factory resetting does not work, gives an error that MDM does not allow it.
- I cannot put in the wrong password 15 times to factory reset, even though I get a warning it just lets me continue trying after 15 fails.
- I cannot enter the bootloader, rebooting to bootloader just reboots to the OS.
- I cannot enter safemode, same as above.
- I cannot enable developer options, so no OEM unlock or USB debugging. Tapping build number gives me an error that the MDM does not allow this option.
The device is recognized by Odin, can I just brick this thing and repartition from scratch? Can someone who knows what they're talking about walk me through that? I'm not really sure what I'm doing here, learning as I go over these last 2 days.
Hello,
I have the same exact same issue, have you been able to unlock it?
Thank you!
I can fix it remotely the last hope
Same Issue here,
Any one had any luck with MDM T307U. Please assist.
rittnerb said:
I have a Samsung Galaxy Tab A (2020, SN-T307U) that I got from work. It's an old Doordash tablet that Doordash didn't want back, so I'm trying to reset it and it's driving me crazy. I have followed so many tutorials trying to get this thing to work, I keep getting caught on something.
- Simply factory resetting does not work, gives an error that MDM does not allow it.
- I cannot put in the wrong password 15 times to factory reset, even though I get a warning it just lets me continue trying after 15 fails.
- I cannot enter the bootloader, rebooting to bootloader just reboots to the OS.
- I cannot enter safemode, same as above.
- I cannot enable developer options, so no OEM unlock or USB debugging. Tapping build number gives me an error that the MDM does not allow this option.
The device is recognized by Odin, can I just brick this thing and repartition from scratch? Can someone who knows what they're talking about walk me through that? I'm not really sure what I'm doing here, learning as I go over these last 2 days.
Click to expand...
Click to collapse
If you look at all of the previous post, it should tell you that no one has found a way to disable an MDM lock. Which is as it should be. Otherwise the lock would be useless.
lewmur said:
If you look at all of the previous post, it should tell you that no one has found a way to disable an MDM lock. Which is as it should be. Otherwise the lock would be useless.
Click to expand...
Click to collapse
That's not true as of today's date. (In the event this post is viewed after this exploit can be successful).
I am not taking credit and perhaps the op has discovered it. Anyway...
I am in Canada and noticed the carriers here stop at BL 8 while the USA has BL 9.
The unit i had was on BL 9 (csc TMB).
This probably works for Canadians on BL 8. I don't recommend flashing to BL 9 as that may affect your service or experience.
ANYWAY! This guide won't explain any prerequisites. They are adb, installing unsigned drivers, and you aren't able to use the device and are the owner
1) if not already, power off device with vol down+power and ensure battery is at least 50%.
2) enter recovery and factory reset. If you're having difficulty entering recovery, plug into your pc and as soon as you hear the audible disconnect, switch to vol up+power. Or jam on all three buttons for dl mode.
If in dl mode you can check firmware version and just flash it with bl, ap, cp and csc (NOT home csc). Use exact current version. Don't worry about userdata if it is USA
3) at welcome, connect wifi and imnediately go back to first screen. Don't use data sim
4) dl samfw app and on misc tab, check driver status and your pc will reboot.
*you must not have secure boot enabled
5) plug phone into pc. In the app, mtp and select youtube. If done right, click the pop up on your phone and navigate to chrome. Should be automatic.
6) search for vnrom frp. Once there download package disabler pro and notification app. They are side by side. Install notification app and set it up so you can swipe quick settings from top of screen.
5) unplug your phone from pc and plug it back in. Should be able to get back to the package app various ways to install it. Before install, turn wifi off. Now run package disabler and when it prompts for device admin, turn wifi on. It'll glitch a bit but should start.
6) locate samsung setup wizard. Don't confuse with the other. It'll have a green icon. Disable it and clear the storage. At bottom left, tap the back arrow and you should be back at final setup.
7) when asked to add samsung account, turn off wifi. Complete setup and don't add any accounts.
8) you should arrive at home screen. Your phone is re-plugged right? Good. Now turn on usb debugging and use the remove knox from the app. Done.
*i think i turned wifi on just before enabling debugging. I forget.
*if you are sloppy... you'll need to start over. You'll see, or already know
*you can do ota (if there still is any) but factory resetting or odin flashing will put you back to managed.
mindlery said:
That's not true as of today's date. (In the event this post is viewed after this exploit can be successful).
I am not taking credit and perhaps the op has discovered it. Anyway...
I am in Canada and noticed the carriers here stop at BL 8 while the USA has BL 9.
The unit i had was on BL 9 (csc TMB).
This probably works for Canadians on BL 8. I don't recommend flashing to BL 9 as that may affect your service or experience.
ANYWAY! This guide won't explain any prerequisites. They are adb, installing unsigned drivers, and you aren't able to use the device and are the owner
1) if not already, power off device with vol down+power and ensure battery is at least 50%.
2) enter recovery and factory reset. If you're having difficulty entering recovery, plug into your pc and as soon as you hear the audible disconnect, switch to vol up+power. Or jam on all three buttons for dl mode.
If in dl mode you can check firmware version and just flash it with bl, ap, cp and csc (NOT home csc). Use exact current version. Don't worry about userdata if it is USA
3) at welcome, connect wifi and imnediately go back to first screen. Don't use data sim
4) dl samfw app and on misc tab, check driver status and your pc will reboot.
*you must not have secure boot enabled
5) plug phone into pc. In the app, mtp and select youtube. If done right, click the pop up on your phone and navigate to chrome. Should be automatic.
6) search for vnrom frp. Once there download package disabler pro and notification app. They are side by side. Install notification app and set it up so you can swipe quick settings from top of screen.
5) unplug your phone from pc and plug it back in. Should be able to get back to the package app various ways to install it. Before install, turn wifi off. Now run package disabler and when it prompts for device admin, turn wifi on. It'll glitch a bit but should start.
6) locate samsung setup wizard. Don't confuse with the other. It'll have a green icon. Disable it and clear the storage. At bottom left, tap the back arrow and you should be back at final setup.
7) when asked to add samsung account, turn off wifi. Complete setup and don't add any accounts.
8) you should arrive at home screen. Your phone is re-plugged right? Good. Now turn on usb debugging and use the remove knox from the app. Done.
*i think i turned wifi on just before enabling debugging. I forget.
*if you are sloppy... you'll need to start over. You'll see, or already know
*you can do ota (if there still is any) but factory resetting or odin flashing will put you back to managed.
Click to expand...
Click to collapse
This method works up to step 7 for me. I can't seem to enable usb debugging before knox kicks in. With or without wifi. I'm experimenting to see if I can get past that step.
How to Remove MDM Control from Android?For anyone suffering from this issue, the following are the steps to bypass Samsung Knox factory reset protection:
First of all, create a password for the device.
Make sure that your device is charged to an 80% or greater charge.
Next, you’ll need to go to Settings and Security Encrypt Device tabs respectively.
Set a PIN/password for your device.
After you have secured your device and it’s gone through. Reboot the device, and when it boots, it will ask you to enter a password in order to access your device to view encrypted data. If you type the wrong password 15-20 times (it depends on your device), it’ll wipe your device of any information and will restart and then appear like you’re registering as a brand new device after a factory reset.
Thats the 2th!!! Try it
Video - Samsung SM-T307U Galaxy Tab A 8.4 2020 Knox Remove || Tab a 8.0 MDM Remove
the Tool from the Video Tutorial is here >> SamFwToolSetup_4.3