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Custom binary blocked by FRP lock

Hi there,
I have a Samsung Galaxy Tab A6 (SMT-580) which I bought today. I followed this tutorial to install twrp, ultimately to root the device:
dottech .org/200476/how-to-install-twrp-recovery-on-samsung-galaxy-tab-a-sm-t580/
Everything worked fine and I was able to boot and reboot fine. Until I signed in with my Google Account. After trying to reboot, I get a black screen with the Samsung logo and a text in red saying: Custom binary blocked by FRP Lock. I went back to the store and they advised me to install Samsung Smart Switch to try and restore. In the Smart Switch program I get an error saying that the device is not supported by Smart Switch.
I can get into download mode, not into any other mode. The tablet doesn't start up at all. On the download mode it also says FRP Lock ON.
When I go back into ODIN and retry to install the from above TWRP image, it says operation failed.
Can anybody please advice? I am at a complete loss. Am I supposed to flash the original boot file? Where can I find that for my device? Will my tablet accept that, since ODIN didn't even want to flash my current TWRP image a second time?
P.S. I only read later that you are supposed to change the OEM setting. I didn't. Is that the cause of this issue, and if so, can I do something about it?
Thanks

Hi. Have you got it fixed yet? You need to download and flash stock firmware for your model and flash it in odin. Once it's done you have to enable oem unlock before you flash twrp. Let it be enabled as long as you you have twrp, root or anything custom.
Skickat från min SM-A310F via Tapatalk

ok, I read this is the place for noobs, so, I too got myself into a FRP LOCK on my Galaxy Tab A6 sm-T280. I use the tablet strictly for flying my drone for surveillance around the rural location where I live. It was having some connectivity problems, so I rooted it to hopefully get enough horsepower to run the DJI Go app. That didn't work so I did a wipe/factory reset, had a problem with the password, and here I am.
I am researching, and gathering the required tools to fix it.
I finally found some guides that are basic enough for me to understand.
I found numerous sites to download the stock rom, but not sure which ones are safe. Suggestions? Also, I am not sure about the country code for the firmware. I am in the USA, and I don't see it listed anywhere. Does it matter? This android stuff is all new and confusing to this old man. I am determined to get this tablet fixed, and would appreciate any and all advice. Thanks, Gary
edit: Will this rom work? : T280XXUOAPL1 using XAA for theCSC? Is xaa the default/generic for U.S.A. ?

Accidentally turned off Dev options after root and now FRP locked?

Had no idea the dev options needed to be left ON regardless after rooting, or it rejects the custom binary? Would have thought the FRP lock would have been bypassed with the rooting. Can't enter twrp recovery neither.
And to be 100% clear, phone is rooted. Dev option was unticked w/o realizing it'd retroactively lock the phone as it detects the non-oem firmware and refuses to boot, refuses recovery, refuses flashing.
Can I somehow flash a stock firmare via Odin and NOT get the wrath of FRP? I found the stock firmware for the phone from Samsung's site. For some reason, the firmware.zip is like 1.4gb? Do I need to strip out a file for the recovery image assuming it'll accept it? Or just select the entire thing in Odin?

OK, flashed the 2.5gb (unzipped it had THAT much bloat) factory Samsung firmware, which took about 2.5 minutes vs. like 4 sec for the root .img :silly: and phone boots back up w/o issue, all personal stuff is intact, and unsurprisingly it adds all the bloatware back that I just deleted earlier.
So, if you accidentally turn off the dev options or I'm assuming the OEM unlocker specifically on your J7, and the phone refuses to boot as it's retroactively detecting "custom binary", OR if you happen to accidentally truly delete an important app and/or it can't be brought back with 3rd party apps, going to Samsung's firmware section, finding your EXACT phone/model/software numbers including the most recent OS and security upgrade to it i.e. 7.1.1 in my case, flashing it with Odin (site said to use most recent, so used v3.13.1) will restore the phone, unrooted of course. But it's better than a paperweight.

Samsung Live Demo Unit Questions

I have a Samsung Galaxy S8 and S8+ LDU that I am attempting to get to a state where I can use them as a tablet of sorts. I have read through a number of posts on this topic and generally the first response is that they were stolen which I would assume retracts from the desire to help. I am a manager at a big box retailer in the US and they were removed from display when the S9 and S9+ demos were brought in. I am attempting to use them for store purposes (DEMO VR, accessories, etc). That being said ... this is what I have done.
S8+: I stupidly attempted to simply flash a different factory image (attempted multiple networks from the the SM-G955U tree). The flash finishes generally but then after a reboot it gets to around 32% and stops the "update". Then it reboots again and is left with the "Security Error: This phone has been flashed with unauthorized software..." message. I have also attempted to flash TWRP but this fails (I'm assuming because OEM unlock wasn't completed before attempting). I thought to flash back to the LDU Image and start over but I can not find one online to use. This is where I am stuck.
S8: I used an APK "simple factory reset" which got ended up doing a reset and when it came back up it had a different retail mode app installed. I can get into the retail mode app and manage the settings with the password as I could before . With this I am able to uninstall/install apps, manage settings, reboot device, etc. It is basically where I would like it to be. It is still running the LDU firmware and I would like to update it to a new system update (8.0 is available to download). The Samsung Retail Mode software is also still running in the background and you can not fully remove it from this state.
So, any suggestions on bringing the S8+ back to life and what steps I could use at this point to flash the S8 to a stock image?
Thank you for your help!

something new? ... I have it too S8 LDU

samsung galaxy s7 custom binary blocked by frp lock

Greetings, ever since i tried rooting my phone, i knew something went wrong (i used cf autoroot).
So the first thing i noticed, i was asked to reset the phone or something similar to that, meaning i would lose all my data.
I tried to find a workaround as this had never happened to me before while rooting a phone, and someone had said that i was supposed to download twrp
and change some partition and then change it back. I dont remember what else he mentioned and what exactly i tried doing, i realised it was formatted either way and i had to start fresh. As i setup my phone i went and switched the oem unlock back to "off", as i did not wanna attempt to root again, but i hadn't realised that my phone was infact rooted sucessfully, leading me to my first error after restarting. "Custom binary blocked by frp lock", with absolutely no access to recovery mode at all anymore. Again, trying to find a workaround, i download some stockfirmware that i atleast had hoped was the right one for my phone, after a couple failed attempts of flashing with odin, ( i had gotten various different error messeges on download mode screen such as (REV Check fail device 7 binary 0 and others witch i cannot remember), now im getting a new error screen, stating that an error has occured while updating the device software. I cant flash twrp recovery as the frp lock is on, and the only thing i can guess is that im flashing the wrong firmware, but i cant find a matching code at all.
Its the following: sm-g930fzkadbt
IMEI: 35214310282955
on the back of the phone it says uk yateley, although the phone was purchased in germany.
Im not sure what to do anymore, any advice would be greatly appreciated.
PS: I have managed to get back to the old error screen with the custom binary info, this time with bootloop, by checking the deviceinfo box on odin

Yep you've now learned the hard way not to mess about and read the proper guides.
Anyway "dbt" is just unbranded german firmware. Download UK "BTU" and flash with Odin, it's UK unbranded.
FRP lock means you'll need to unlock the phone with the google account and password that was on it before you started messing about with it.
If you don't know the google email and password you need to read up on how to bypass FRP lock and it's a nightmare.

cooltt said:
Yep you've now learned the hard way not to mess about and read the proper guides.
Anyway "dbt" is just unbranded german firmware. Download UK "BTU" and flash with Odin, it's UK unbranded.
FRP lock means you'll need to unlock the phone with the google account and password that was on it before you started messing about with it.
If you don't know the google email and password you need to read up on how to bypass FRP lock and it's a nightmare.
Click to expand...
Click to collapse
Thanks for your reply, just a question, will any btu update work? Should i download latest android version btu firmware?
(Also yes, it was stupid of me to try and do it quick but i had rooted 3 different samsung galaxy phones in the past without issues, either i did something wrong or it took something way too specific to do the job, perhaps the phone's unrootable, but thank you either way) :fingers-crossed:

Elef244 said:
Thanks for your reply, just a question, will any btu update work? Should i download latest android version btu firmware?
(Also yes, it was stupid of me to try and do it quick but i had rooted 3 different samsung galaxy phones in the past without issues, either i did something wrong or it took something way too specific to do the job, perhaps the phone's unrootable, but thank you either way) :fingers-crossed:
Click to expand...
Click to collapse
You'll likely only find the last version of BTU think it was August 2019. It isn't updated officially anymore but it'll be fine to use.

cooltt said:
You'll likely only find the last version of BTU think it was August 2019. It isn't updated officially anymore but it'll be fine to use.
Click to expand...
Click to collapse
I've found android 6 to android 8 with all the monthly updates, im just trying the latest of the latest though i dont remember my android version, ill try android 7 and 6 if that doesn't work, thanks again. I'll make sure to reply if this works or doesn't.

cooltt said:
Yep you've now learned the hard way not to mess about and read the proper guides.
Anyway "dbt" is just unbranded german firmware. Download UK "BTU" and flash with Odin, it's UK unbranded.
FRP lock means you'll need to unlock the phone with the google account and password that was on it before you started messing about with it.
If you don't know the google email and password you need to read up on how to bypass FRP lock and it's a nightmare.
Click to expand...
Click to collapse
OK so i thought it worked but i can only enter recovery mode now and download mode, but cant actually boot the system, it just boots up the battery screen whenever i plug the charger, and never shows the actual battery info, just the thunder icon. Formatting from recovery mode doesn't help either (Note whenever i launch recovery mode it says installing update, then says no command and brings me to the recovery menu) Any ideas?
PS: It fixed itself. Sorry for the pointless edit.

Someone HELP!!!

Hi all,
I'm having a nightmare of a time with my Galaxy S7... For some unknown reason I decided to root my phone about 2 months ago using CF Auto Root.. worked great.. This morning, was having bad lag issues, so I restarted the phone.. as soon as the Samsung logo came up, I got a red message at the top of the screen saying "Custom Binary locked by FRP".. kind of freaked out and booted the phone into Recovery mode.. wiped Cache and wiped phone (to go back to factory setting I guess).. restarted... since then, I had no boot.. it did loop for a while as I was trying to charge the phone.. but that's it.
Now, the only way the phone will power on is if I plug it into my computer in Download Mode. I am trying to flash the ROM, custom or stock, but Odin fails almost as soon as it starts the sboot.bin and the phone screen shows "SW REV. CHECK FAIL (BOOTLOADER) DEVICE: 6, BINARY: 1".. Also, When I try to power on the phone, it HAS to be plugged in to my computer or charger cable and it just loops with a message at the top of the screen.
I can't do anything with this phone and cant find any solutions online... please help! :crying:
PM me for images of all screens please

I had the some problem while playing with my handset I switched off OEM unlock for some reason under developer option..
Next time i reset my handset it stuck on that warning
You need to download combination file, flash it with odin, then unlock developer mode, toggle OEM unlock, than flash back your current firmware, or if you have full twrp back up restore it

JayMor81 said:
Hi all,
I'm having a nightmare of a time with my Galaxy S7... For some unknown reason I decided to root my phone about 2 months ago using CF Auto Root.. worked great.. This morning, was having bad lag issues, so I restarted the phone.. as soon as the Samsung logo came up, I got a red message at the top of the screen saying "Custom Binary locked by FRP".. kind of freaked out and booted the phone into Recovery mode.. wiped Cache and wiped phone (to go back to factory setting I guess).. restarted... since then, I had no boot.. it did loop for a while as I was trying to charge the phone.. but that's it.
Now, the only way the phone will power on is if I plug it into my computer in Download Mode. I am trying to flash the ROM, custom or stock, but Odin fails almost as soon as it starts the sboot.bin and the phone screen shows "SW REV. CHECK FAIL (BOOTLOADER) DEVICE: 6, BINARY: 1".. Also, When I try to power on the phone, it HAS to be plugged in to my computer or charger cable and it just loops with a message at the top of the screen.
I can't do anything with this phone and cant find any solutions online... please help! :crying:
PM me for images of all screens please
Click to expand...
Click to collapse
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.

cooltt said:
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.
Click to expand...
Click to collapse
Dammit.. I tried to put as much detail as possible in there lol.. obviously I forgot some.. My mistake the Galaxy s7 that I am using is a Rogers Mobile (Canada) SM-G930W8. As for not signing out before modification, omfg, that makes perfect sense.. didn't even think of doing that before rooting.. I appreciate the help!! I will give this a go and see what outcome I get.. Thanks!

[/COLOR]That was nice of you to respond so helpfully, despite you having seen the scenario posted over and over.
cooltt said:
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.
Click to expand...
Click to collapse

Can't make or receive calls
Please I need help my I rooted my S7 (flat) flashed the original OS with odin Installed Twrp flashed Andriod 9 and since then I can't make or receive calls wifi seems fine. Someone please come to my rescue:crying:

Cesilina said:
Please I need help my I rooted my S7 (flat) flashed the original OS with odin Installed Twrp flashed Andriod 9 and since then I can't make or receive calls wifi seems fine. Someone please come to my rescue:crying:
Click to expand...
Click to collapse
The S7 didn't receive Android 9 so the ROM is a custom one. Any issues with custom ROM's should be asked on the ROM thread itself where you got the ROM from. It's quite normal for custom ROM'S to have bugs.
You can try flashing the ROM (Android 9 Pie) again to see if it works. If not there are several different A9 ROM's to choose from.

cooltt said:
The S7 didn't receive Android 9 so the ROM is a custom one. Any issues with custom ROM's should be asked on the ROM thread itself where you got the ROM from. It's quite normal for custom ROM'S to have bugs.
You can try flashing the ROM (Android 9 Pie) again to see if it works. If not there are several different A9 ROM's to choose from.
Click to expand...
Click to collapse
Thank you for reply. I have tried atleast 4 different custom ROMs but to avail

Cesilina said:
Thank you for reply. I have tried atleast 4 different custom ROMs but to avail
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Click to collapse
Do you still have an imei number listed in settings?

Can't make or receive calls
cooltt said:
Do you still have an imei number listed in settings?
Click to expand...
Click to collapse
Yes please I still have an IMEI number