Database Users

Debrand from O2 to Stock

Hi I am thinking of taking the O2 firmware off my phone and going for Samsung stock. I am on JE2 just now so should I go straight to JE2 stock or the new JE7? The phone is a contract phone so would it be easy to get the O2 ROM back if I ever needed a warranty repair?

SEARCH in development section O2 rom debrand .
jje

Hi
I followed the guide and successfully changed the firmware to the stock Samsung one on the thread mentioned here. However when I did the factory reset and reboot (which wipes everything) I find my handset still thinks it operator is o2 rather than the other CSC code mentioned which should mean it can take the standard firmware ota updates... this was my sole reason for de-branding so i can take advantage of OTA updates without waiting for them via o2.
Everything went as per the guide so I'm not sure why the change to a the XEU CSC operator didnt work. I've tried the factory reset/reboot twice and still shows the same.
Any advice on how to move this forward would be very much appreciated as although I'm now on stock f/w i can't update with KE7 or any of the other recent updates.
cheers
Bob.

Did you do *#272*imei# select csc and then do factory reset? This is what I had to do to get the change to be recognised.
Sent from my GT-I9100 using XDA App

When i enter this I get a screen which shows
Preconfig
Sales Code O2U
Green button (not hilighighted)
and two buttons at the bottom
Install / Cancel
Are you saying i should select this O2U and hit install and THEN factory reset?
-- update --
when i hit the radio button the above screen and hit Install it says 'must be THREE chars.'
So not really sure what to do from here...
-- --
BTW CSC currently shows as unknown (from doing *#1234#)
thanks

Hmmm strange. Follow step8 here http://forum.xda-developers.com/showthread.php?t=1064894
If that doesnt work I would put the O2 FW back on and try again

unclebobuk said:
Hi
should mean it can take the standard firmware ota updates..
There have never been OTA updates .
Any advice on how to move this forward would be very much appreciated as although I'm now on stock f/w i can't update with KE7 or any of the other recent updates.
Kies does not update stock rom in general though some report it has . Never happened to me from SGS1 to SGS 2 on many tries .
KE7 not yet on Kies for many .
Most of us debrand to remove branding and use Odin to flash stock firmware on release . Odin = KE7 now no wait .
Rebranding phone with original for warranty purpose only if needed .
jje
Click to expand...
Click to collapse

unclebobuk said:
When i enter this I get a screen which shows
Preconfig
Sales Code O2U
Green button (not hilighighted)
and two buttons at the bottom
Install / Cancel
Are you saying i should select this O2U and hit install and THEN factory reset?
-- update --
when i hit the radio button the above screen and hit Install it says 'must be THREE chars.'
So not really sure what to do from here...
-- --
BTW CSC currently shows as unknown (from doing *#1234#)
thanks
Click to expand...
Click to collapse
do a factory reset using setting privacy, my CSC didnt change using the factory reset in recovery menu, only changed when I did the reset in settings menu.

thanks for the replies all. Tried the factory reset from the settings menu but preconfig still shows 02u and *#1234# still shows CSC unknown...
guess I'll have to try reflashing via ODIN again... should i use a different firmware..
i installed
I9100XWKDD_I9100XXKDH_I9100XEUKD1_HOME.TAR
(taken from thread http://forum.xda-developers.com/showthread.php?t=1064894)
Should i try a different version or put the stock one back...from the same thread..
I9100XWKDD_I9100XXKDH_I9100O2UKD1_HOME.TAR
...
I guess whatever i flash I'll do the reset from the boot menu and also the factory reset as recommended..
any further feedback appreciated... guess its not likely i'll brick my phone but would like to be able to take advantage of the new features in the later f/wares.
thanks all.

help with custom s4 i9505

hi i need help to get my s4 i9505 back to stock i got it the other day thinking it was unlocked but it is not I'm willing to pay for the unlock code but it does not even ask for it it just says not registered on network it was originally a three phone i believe as a 3 icon comes up on the home screen when i reset it. i have tried the set network and all that (no effect) then i tried the download mode and discovered it says custom platform and Knox 0x0 which Odin do i use and which stock tar md5 etc? also when/if it can still be unlocked by code can it then be unbranded any help would be banging
hope this is posted in the right place.
thanks max.

You can get stock firmware from sammobile.com.
I always use Odin 3.07 on a win7 x64 machine to flash anything via Odin.

If the phone was carrier locked then you have to flash the carriee firmware. In this case that would be three.

till wont unlock via code
GDReaper said:
If the phone was carrier locked then you have to flash the carriee firmware. In this case that would be three.
Click to expand...
Click to collapse
ok i have flashed stock three firmware but it does not ask for unlock code just says network unavailable?

Try selecting the network manually.

solved it's ok
thanks for the help it's done working unlocked sorted i flashed the o2 stock ware and it asked for code woo hoo at last. also its de-branded now most excellent thanks again.

why three
wonder why it had a three stock firmware if it was an o2 phone very strange?

Perhaps the previous owner did that. New phones don't come with the wrong firmware.

Help me with flashing stock firmware

Hi
I got my wife a Samsung S8, SIM free as it was cheaper to buy the phone out right and get a 3 SIM only deal.
Only problem is because we got the phone from a online retailer, 3 won't activate the wifi calling.
So I have decided to flash the 3 S8 firmware via odin to my wife's phone but before I do that I have a few questions so I know I don't mess things up.
I will list the questions in number form so could you list the answers in number form with answer matching the question number, so I know what people are talking about.
1. When I glanced at Sammobile, I saw nothing mentioned about 3. Only thing I saw was H3G does this mean 3....if not what is 3 software listed as.
2. Will flashing this firmware wipe or factory reset her phone. (I know that I need to back things up anyway)
3. Will doing this Firmware flash void her insurance. As it's official Samsung software, I didn't think so but I want to be sure.
4. After the update will her phone be locked to 3.
5. Has anyone got any tips and guides which can help with this.
6. I hear that you can google blocked doing this type of thing, how do you get around getting blocked and if I do, how do I unblock a google blocked phones.
7. Will flashing 3 firmware actually give me wifi calling in the end.
8. After I have installed the firmware....will I receive future android/ Samsung updates. E.g. android 7 to android 8 updates, security patches and bug fixes
Thanks guys I will leave those questions for now....if I have anymore I will add them on another comment.
Hope you can help me I have attached some stuff I saw on the net incase it helps in anyway

Owenboy89 said:
Hi
I got my wife a Samsung S8, SIM free as it was cheaper to buy the phone out right and get a 3 SIM only deal.
Only problem is because we got the phone from a online retailer, 3 won't activate the wifi calling.
So I have decided to flash the 3 S8 firmware via odin to my wife's phone but before I do that I have a few questions so I know I don't mess things up.
I will list the questions in number form so could you list the answers in number form with answer matching the question number, so I know what people are talking about.
1. When I glanced at Sammobile, I saw nothing mentioned about 3. Only thing I saw was H3G does this mean 3....if not what is 3 software listed as.
2. Will flashing this firmware wipe or factory reset her phone. (I know that I need to back things up anyway)
3. Will doing this Firmware flash void her insurance. As it's official Samsung software, I didn't think so but I want to be sure.
4. After the update will her phone be locked to 3.
5. Has anyone got any tips and guides which can help with this.
6. I hear that you can google blocked doing this type of thing, how do you get around getting blocked and if I do, how do I unblock a google blocked phones.
7. Will flashing 3 firmware actually give me wifi calling in the end.
8. After I have installed the firmware....will I receive future android/ Samsung updates. E.g. android 7 to android 8 updates, security patches and bug fixes
Thanks guys I will leave those questions for now....if I have anymore I will add them on another comment.
Hope you can help me I have attached some stuff I saw on the net incase it helps in anyway
Click to expand...
Click to collapse
Firstly, there are Dozens and dozens of flash guides all over the web on flashing a SS phones with ODIN, 2nd'ly, its one of the easiest phones to flash..
Before you do anything download and install the latest SS USB drivers.. plug your phone in so they are detected.. then goto>settings and turn ON USB debugging in developer options.. plug in phone again.. so the device is detected again, then unplug... this installs the (A)ndroid (D) ebug (B)ridge driver, leave USB Debugging ON..
Your questions:,,
1) Yes H3G is 3UK... also EE use wifi calling..
2) Yes, it will wipe her phone... When you download your H3G firmware.. there are 2 CSC files in the folder.. I recommend using CSC... do not use HOME_CSC
3) No it will not void the warranty... its only when you trip KNOX by rooting, or custom roms that you invalidate warranty... Stock is fine
4) Yes it will... you will have to get an Unlock code to SIM unlock her phone.. SIM Unlock.. is not Flashing a rom.. What makes SS devices so cool.. is that you can flash any stock rom from any provider.. and it doesnt affect the bootloader, so you could flash an unbranded (open), EE or O2 rom on your 3 SIM locked phone..
5) Theres so many on the web and on XDA for SS phones and ODIN flashing, just type "Galaxy S8 back to stock" into search. My advice.. READ READ and more READ the guides ALL THE WAY Through, before you do ANYTHING AT ALL.. and make sure the phone you have has no SIM locks or security locks on it before you start.
6) Never heard of this... its only a stock rom your flashing, youll be fine
7) If 3 support Wifi Calling and the Rom your flashing has it coded in, then Yes it should work fine. EE also support Wifi calling
8) Yes... its a STOCK Rom with a STock recovery and STOCK Knox... so you will recieve updates according to when they are rolled out by that prvider... So, if its a 3 Rom, youll get updates when 3 push them out... if its an O2 rom, youll get them from O2.. and so on.... That is why soo many people flash Unbranded/Unlocked Open Roms... because unlocked phones have, in the past, gotten updates first and factory unlocked phones / roms dont come with Bloatware / carrier rubbish apps installed ..
Remember.. Just READ everything
Hope this helps

NightOrchid said:
Firstly, there are Dozens and dozens of flash guides all over the web on flashing a SS phones with ODIN, 2nd'ly, its one of the easiest phones to flash..
Before you do anything download and install the latest SS USB drivers.. plug your phone in so they are detected.. then goto>settings and turn ON USB debugging in developer options.. plug in phone again.. so the device is detected again, then unplug... this installs the (A)ndroid (D) ebug (B)ridge driver, leave USB Debugging ON..
Your questions:,,
1) Yes H3G is 3UK... also EE use wifi calling..
2) Yes, it will wipe her phone... When you download your H3G firmware.. there are 2 CSC files in the folder.. I recommend using CSC... do not use HOME_CSC
3) No it will not void the warranty... its only when you trip KNOX by rooting, or custom roms that you invalidate warranty... Stock is fine
4) Yes it will... you will have to get an Unlock code to SIM unlock her phone.. SIM Unlock.. is not Flashing a rom.. What makes SS devices so cool.. is that you can flash any stock rom from any provider.. and it doesnt affect the bootloader, so you could flash an unbranded (open), EE or O2 rom on your 3 SIM locked phone..
5) Theres so many on the web and on XDA for SS phones and ODIN flashing, just type "Galaxy S8 back to stock" into search. My advice.. READ READ and more READ the guides ALL THE WAY Through, before you do ANYTHING AT ALL.. and make sure the phone you have has no SIM locks or security locks on it before you start.
6) Never heard of this... its only a stock rom your flashing, youll be fine
7) If 3 support Wifi Calling and the Rom your flashing has it coded in, then Yes it should work fine. EE also support Wifi calling
8) Yes... its a STOCK Rom with a STock recovery and STOCK Knox... so you will recieve updates according to when they are rolled out by that prvider... So, if its a 3 Rom, youll get updates when 3 push them out... if its an O2 rom, youll get them from O2.. and so on.... That is why soo many people flash Unbranded/Unlocked Open Roms... because unlocked phones have, in the past, gotten updates first and factory unlocked phones / roms dont come with Bloatware / carrier rubbish apps installed ..
Remember.. Just READ everything
Hope this helps
Click to expand...
Click to collapse
Thank you so much. I will make sure to do my research. I have used odin before so I have some experience using the tool but not for big things like this. Last thing I used it for was to download TWRP to my rooted tablet.
I will also pull out her memory card so she can save her photo......she will be pissed about the wiping the phone part but if we want wifi calling then needs are a must.
Anyway of backing up her phone on a level where I can just put in her user name and password it will literally restore back to the point of the last back up....eg install all her the apps and themes the way she had them before the firmware update.
It's really important I nail this, as this is the first time we have gone SIM free and I don't want to be going back to paying extra for contracts just because we need the wifi calling. (And we both hate the three in touch app)....so my success with this will be important for the next phones we buy.

NightOrchid said:
Firstly, there are Dozens and dozens of flash guides all over the web on flashing a SS phones with ODIN, 2nd'ly, its one of the easiest phones to flash..
Before you do anything download and install the latest SS USB drivers.. plug your phone in so they are detected.. then goto>settings and turn ON USB debugging in developer options.. plug in phone again.. so the device is detected again, then unplug... this installs the (A)ndroid (D) ebug (B)ridge driver, leave USB Debugging ON..
Your questions:,,
1) Yes H3G is 3UK... also EE use wifi calling..
2) Yes, it will wipe her phone... When you download your H3G firmware.. there are 2 CSC files in the folder.. I recommend using CSC... do not use HOME_CSC
3) No it will not void the warranty... its only when you trip KNOX by rooting, or custom roms that you invalidate warranty... Stock is fine
4) Yes it will... you will have to get an Unlock code to SIM unlock her phone.. SIM Unlock.. is not Flashing a rom.. What makes SS devices so cool.. is that you can flash any stock rom from any provider.. and it doesnt affect the bootloader, so you could flash an unbranded (open), EE or O2 rom on your 3 SIM locked phone..
5) Theres so many on the web and on XDA for SS phones and ODIN flashing, just type "Galaxy S8 back to stock" into search. My advice.. READ READ and more READ the guides ALL THE WAY Through, before you do ANYTHING AT ALL.. and make sure the phone you have has no SIM locks or security locks on it before you start.
6) Never heard of this... its only a stock rom your flashing, youll be fine
7) If 3 support Wifi Calling and the Rom your flashing has it coded in, then Yes it should work fine. EE also support Wifi calling
8) Yes... its a STOCK Rom with a STock recovery and STOCK Knox... so you will recieve updates according to when they are rolled out by that prvider... So, if its a 3 Rom, youll get updates when 3 push them out... if its an O2 rom, youll get them from O2.. and so on.... That is why soo many people flash Unbranded/Unlocked Open Roms... because unlocked phones have, in the past, gotten updates first and factory unlocked phones / roms dont come with Bloatware / carrier rubbish apps installed ..
Remember.. Just READ everything
Hope this helps
Click to expand...
Click to collapse
Hi....i seem of got myself in a pickle.
I read countless amounts of guides and watch loads of videos but still not gone right. (Phone isn't broken thankfully)
Basically I do everything guides tell me, but it's when I press start on odin the problem happens. It doesn't fail but it doesn't progress....on the text box it stops at a point that says Nand START (something like that) but doesn't get past that point....i sat for an hour the first time I tried it and 30 mins every time after that. Another thing it does is at the top where you get the green loading bar....that part goes white and says something like select Partition (not near my pc at the mo and when I was with the pc my wife had my phone, so couldn't take a photo)
I have 3 solutions that could be causing the problem but I just want to get a second opinion.
1. I read everywhere about device drivers and I was under the impression that they downloaded automatically when I plugged the phone to the pc....is there secondary drivers I need to download (sorry for the basic question)
2. My odin wasn't the latest version....i was using odin 3.09 and now there is odin 3.13 (I think) will using the latest version stop this problem.
3. I wonder if my antivirus is blocking it....do antivirus's ever get in the way of flashing firmware.
Hope some can help before tonight

Owenboy89 said:
Hi....i seem of got myself in a pickle.
I read countless amounts of guides and watch loads of videos but still not gone right. (Phone isn't broken thankfully)
Basically I do everything guides tell me, but it's when I press start on odin the problem happens. It doesn't fail but it doesn't progress....on the text box it stops at a point that says Nand START (something like that) but doesn't get past that point....i sat for an hour the first time I tried it and 30 mins every time after that. Another thing it does is at the top where you get the green loading bar....that part goes white and says something like select Partition (not near my pc at the mo and when I was with the pc my wife had my phone, so couldn't take a photo)
I have 3 solutions that could be causing the problem but I just want to get a second opinion.
1. I read everywhere about device drivers and I was under the impression that they downloaded automatically when I plugged the phone to the pc....is there secondary drivers I need to download (sorry for the basic question)
2. My odin wasn't the latest version....i was using odin 3.09 and now there is odin 3.13 (I think) will using the latest version stop this problem.
3. I wonder if my antivirus is blocking it....do antivirus's ever get in the way of flashing firmware.
Hope some can help before tonight
Click to expand...
Click to collapse
Hi again everyone.
I feel like I am talking to myself here. I have managed to sort it.
I downloaded some secondary device drivers for her phone and then update odin to, Odin v3.12.7 and it worked first time.
I also used the original charging cable instead of the official charging cable for the gear 360 camera.
To restore her data, I backed up to samsung cloud in the settings, signed her in and restored the date I backed up....didn't originally think it would be any good but I am impressed.
Result is I have a phone that has wifi calling and I read somewhere that if you take the SIM out of your phone when you download the firmware it doesn't SIM lock the phone.....and it seems to have worked. (Not sure how true it is or if I was just lucky)
Hope this thread helps, I want to cover a few different things in it and learn something on the way.
(Thanks to the person that commented and supplied most of the info in this thread)
#happywifehappylife

Hi everyone.......again.
My last post I promise.
I wrote a bit of a guide for myself for when I need to do this again. I thought would post it here so people can see it and use it if they wish.
(The notes before the method is apart of my guide. Hope it all helps)
Notes Before The Method
the cable you are using to connect to the pc should be the original charging cable. (If you don't have the original then use the one your using and see if it works but try to find a official Samsung charging cable)
Your phone needs to be at least at 60% battery.
Older phones sometimes don't work with newer versions of Odin so if this is happening download a older version.
If it's a new phone and you want to personalize it from scratch then no need to back up and restore any data.
After removing your memory card, plug it into your computer using a memory card extension and copy photos to your computer. Just in case the phone formats the memory card when entered back in to the phone, after the firmware is installed.
Method
1. Go to Sammobile via Google chrome in incognito mode. (If you don't do this they will re-direct you to a sign up page, everytime you press download)
2. Download Firmware, find this by picking the lastest firmware thats with your network and match the Baseband version or the last part of build number. (found in system info in the settings)
3. Install the latest version of Odin and install secondary device drivers on your pc/Laptop.
4. (On your mobile) back up your data in the samsung cloud.
Setting>Cloud and Accounts>Samsung Cloud>Backup settings> Back up.
If you have a memory card, move all your photos ect, to it and remove it from your phone.
5. Go into setting and tap build number 7 times to unlock developer options. After unlocking it, enter developer options and enable usb debugging.
Setting>developer options>USB Debugging.
6. Once the firmware file has stopped downloading on your pc extract it and send send it to your Downloads File.
7. Open Odin and load each part of firmware in the right box e.g. AP with AP, BL with BL, CSC with CSC ect (Do not load up Home CSC this is used for when your moving a branded device to another brand, E.g. EE to 3)
8. Before you plug your phone up to the computer. Turn your phone off and enter Odin mode(Download mode). Each device has a different way of doing this so just google how to do it on your specific device.
9. Once your phone is in download mode plug it into the computer and press start. This should take a few minutes but some files may take longer.
10. Once the Odin confirms the process is done, by showing the pass sign unplug your phone and turn it on. (First time you turn it on May take a minute or two to load. )
11. Enter your google email and password, and restore all your data on google.
12. Then enter your Samsung user and password, after that press restore and choose the date you backed up on before you flashed your phone (at point 4)
13. Enjoy....your all done.

Change Thai S8 to UK

Hi all,
I'm totally new to Android after taking my iphone for a swim in Thailand (which is completely destroyed). I needed a phone for hotel reservations etc, so I decided to upgrade to an S8, bought at a Samsung outlet in Tesco in Thailand.
I live in the UK, so would like to be able to access all UK features (chiefly of all, Samsung/Android pay - not fussed which), along with not having to pay in Baht in the Play Store. Support have been 0 help, basically telling me I'm SOOL. I've read online about changing the CSC code, but I'd really appreciate some advice about whether this is possible and how I'd go about doing this. I'm not really worried about my warranty as apparently it's not valid in the UK. I'm more concerned about bricking my phone/making it unusable or a pain to operate.
Can anyone help/point me in the direction of an easy to follow guide? I'd be extremely grateful!
My model number is SM-G950FD
Thanks,
Dom

The easiest way is to flash via Odin UK specific firmware. So on Sam mobile I use the EVR firmware for EE UK, they have different ones for the major carriers

OK cool. I'm sure I can find a guide for that, but I have a couple of questions:
- what are the ramifications of this? Will it bork any part of my phone? Are there any other risks I should be aware of?
- will I be able to back up and restore my phone, but with the new firmware?

mr_maroon said:
OK cool. I'm sure I can find a guide for that, but I have a couple of questions:
- what are the ramifications of this? Will it bork any part of my phone? Are there any other risks I should be aware of?
- will I be able to back up and restore my phone, but with the new firmware?
Click to expand...
Click to collapse
It will be completely stock you will be fine. In terms of backup & restore the same as you would normally. Naturally you won't have TWRP root etc for proper backup.
but since you want samsung pay to work you cant have those anyway
link to all samsung 950f firmware https://www.sammobile.com/firmwares/galaxy-s8/SM-G950F/
Once you find which you want & assuming your not a member of the site you will get very slow download speeds go here (if you're a member it's really fast)
https://updato.com/firmware-archive-select-model to download.

So I just attempted to flash to BTU. Downloaded the appropriate firmware, then attempted to flash via Odin (BL, AP, CP & CSC (not home)), including a factory reset.
When I restart the device, it reboots in Thai! Any suggestions?
Thanks!

mr_maroon said:
So I just attempted to flash to BTU. Downloaded the appropriate firmware, then attempted to flash via Odin (BL, AP, CP & CSC (not home)), including a factory reset.
When I restart the device, it reboots in Thai! Any suggestions?
Thanks!
Click to expand...
Click to collapse
first factory reset. then flash home instead of csc + all the others, should work. If it doesn't change language in the phone first then repeat the steps just given.
You may have a problem only in that because you are not rooted or have custom recovery It defaults to what it was when 1st setup it has frp (factory reset protection). but as I said should work

StackOverflow13 said:
first factory reset. then flash home instead of csc + all the others, should work. If it doesn't change language in the phone first then repeat the steps just given.
You may have a problem only in that because you are not rooted or have custom recovery It defaults to what it was when 1st setup it has frp (factory reset protection). but as I said should work
Click to expand...
Click to collapse
OK cool - so I've followed these steps exactly and I've ended up with XEU/XEU/THL. Play Store etc still in Baht. Not really sure where to go from here!

Im afraid thats as far as I can help. Without root or twrp. Hopefully someone else will be able to assist

I just tried downloading the 3 UK firmware (my carrier is 3), and I get a 3 boot screen, but the Play Store etc is still in Baht. This is immensely frustrating!

Perhaps if you Google how to reset FRP?

Well, that didn't go well

Tab 5se Stock firmware
So I bought a 3rd 5se from a third party, all I checked for was for FRP lock, well it wasn't locked, but when I got it home and rebooted, it says is has a unlocked bootloader. So I hard factory reset it and now it states that only stock firmware can be installed in boot and won't go any further.
So I'm guessing I need to use ODIN to flash a factory ROM but I'm not sure which one as I can't seem to find a USA one on Sammoble, I do see a Canada one though.
Which version of ODIN should I use (WIN 10)
Which ROM, I'm in the USA, WIFI ONLY SM-T720, country code ?
Any other tips, as I haven't flashed anything in almost a decade probably.
Need to get this back to all stock, help

You want the XAR country code version which is the US rom. For Odin, use the newest version for our tablet. Good luck.

puredigital said:
Tab 5se Stock firmware
So I bought a 3rd 5se from a third party, all I checked for was for FRP lock, well it wasn't locked, but when I got it home and rebooted, it says is has a unlocked bootloader. So I hard factory reset it and now it states that only stock firmware can be installed in boot and won't go any further.
So I'm guessing I need to use ODIN to flash a factory ROM but I'm not sure which one as I can't seem to find a USA one on Sammoble, I do see a Canada one though.
Which version of ODIN should I use (WIN 10)
Which ROM, I'm in the USA, WIFI ONLY SM-T720, country code ?
Any other tips, as I haven't flashed anything in almost a decade probably.
Need to get this back to all stock, help
Click to expand...
Click to collapse
I use Frija instead of Sammobile to get the latest stock. Just use SM-T720 as the model and XAR as the CSC. If you search for how to unlock the bootloader, you can use the same proceedure to relock it. It should perform a factory reset as part of the process and you might not need to reflash a ROM.

Not sure..
Since the device won't turn off, restart nor go into download mode
Aqua blue sorta cyan screen. Top in red (like a terminal response) says," Only official released binaries are allowed to be flashed (vbmeta)"
Then on main screen in center;
Security Error: This phone has been flashed with unauthorized software & is locked. Call your mobile operator for additional support
lewmur said:
I use Frija instead of Sammobile to get the latest stock. Just use SM-T720 as the model and XAR as the CSC. If you search for how to unlock the bootloader, you can use the same proceedure to relock it. It should perform a factory reset as part of the process and you might not need to reflash a ROM.
Click to expand...
Click to collapse

puredigital said:
Since the device won't turn off, restart nor go into download mode
Aqua blue sorta cyan screen. Top in red (like a terminal response) says," Only official released binaries are allowed to be flashed (vbmeta)"
Then on main screen in center;
Security Error: This phone has been flashed with unauthorized software & is locked. Call your mobile operator for additional support
Click to expand...
Click to collapse
The only time a ran into a situation where I couldn't turn off that tablet, I just had to put it aside for a day or so till the battery ran down. Then use the method of holding both vol up and down, and NOT power, and then plugging in the cable from the PC. Must be from PC and not charger.

puredigital said:
Since the device won't turn off, restart nor go into download mode
Aqua blue sorta cyan screen. Top in red (like a terminal response) says," Only official released binaries are allowed to be flashed (vbmeta)"
Then on main screen in center;
Security Error: This phone has been flashed with unauthorized software & is locked. Call your mobile operator for additional support
Click to expand...
Click to collapse
I ran into this recently when I went back to stock to get the fingerprint for Magisk Module and then went back to Lineage. You just need to Odin the factory firmware. The tablet will turn off, I think the key combination to force it off is power and volume down? Its been a few weeks, but I was able to get back into download mode. I found other threads for samsung phones that had this same issue and basically used them as rough guides.
As mentioned you just need to use XAR ROMs, your box should say XAR. I believe both Canada and Cellular South ROMs will come up as XAR roms IIRC?

Bruh. I had the same issue and you will not be able to flash your way around and FRP lock. I found a guy on eBay to remove the FRP lock and NOT through flashing. For $10 is was done in 10 minutes. I get if you want to figure it out. I'm a flasher and love to figure this **** out too but with a recent update Samsung blocks this. Trust me. Spend $10 and it's done. Also many people say they can do this on eBay. I only recommend this guy: https://www.ebay.com/itm/273424666857. Just select a new auction of his and message him.
Sent from my SM-T720 using Tapatalk

elcidroyale said:
Bruh. I had the same issue and you will not be able to flash your way around and FRP lock. I found a guy on eBay to remove the FRP lock and NOT through flashing. For $10 is was done in 10 minutes. I get if you want to figure it out. I'm a flasher and love to figure this **** out too but with a recent update Samsung blocks this. Trust me. Spend $10 and it's done. Also many people say they can do this on eBay. I only recommend this guy: https://www.ebay.com/itm/273424666857. Just select a new auction of his and message him.
Sent from my SM-T720 using Tapatalk
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He said he checked to make sure this was not the FRP lock. Assuming this is the same message I got which says only official binaries can be flashed, please take this to a service center and it there maybe a cost involved (obviously I'm paraphrasing), you can fix it with Odin. I was on the latest firmware as well, as I updated fully to get the fingerprint for the MagiskHide module. This sounds like a different issue, to me.
I mean if that works it's $10 well spent I guess.

Oh my apologies as I misread his post. I just saw "FRP" and chimed in. Hope he gets it sorted out.
OhioYJ said:
He said he checked to make sure this was not the FRP lock. Assuming this is the same message I got which says only official binaries can be flashed, please take this to a service center and it there maybe a cost involved (obviously I'm paraphrasing), you can fix it with Odin. I was on the latest firmware as well, as I updated fully to get the fingerprint for the MagiskHide module. This sounds like a different issue, to me.
I mean if that works it's $10 well spent I guess.
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Almost !
Well, I finally reflashed the device with factory stuff, it's working fine now, no locks, except now it tells me the bootloader is unlocked on boot. I flashed it with Odin, no options, just loaded the 4 files and done.
How do I get this to STOCK, out of the box status. Steps ?