yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series Guides, News, & Discus] suloku:
Just in case anyone gets here in 2023, I successfully rooted with magisk v26.1 even with the vbmeta messages.

0.- I was on latest stock update, with march 2023 security upgrade (SM-T500_EUX_T500XXU4CWD2_fac) (I previously had to reflash stock to this version since I was stuck at the vbmeta screen being able to boot modified firmware)

1.- I followed magisk's installation guide which suggests using adb to copy the firware files to and from the phone (mpt seems to corrupt large files)

2.- When I flashed the magisk-patched AP firmware I also patched BL and CSC (not the CSC-HOME) and in USER I flashed the empty vbmeta image.

When I previously used only magisk patched AP and empty VBMETA it didn't work (magisk installation guide also tells you to always flash all firmware files).

The empty vmeta I used is the following one: https://xdaforums.com/t/solved-vbme...ication-command-problem.4396799/post-87227821

Also, I successfully used safetynet-fix-v2.4.0 magisk module to pass safetynet:

https://xdaforums.com/t/magisk-module-universal-safetynet-fix-2-4-0.4217823/

GitHub - kdrag0n/safetynet-fix: Google SafetyNet attestation workarounds for Magisk

Google SafetyNet attestation workarounds for Magisk - kdrag0n/safetynet-fix

github.com

Hopefully my experience helps someone.
[Samsung Galaxy Tab A series Guides, News, & Discus] ahmad.shn:
Hi there, thank you for this, however I'm facing an issue, which versions of magisk and odin did you suse?

I keep getting the vbmeta fail message in Odin while flashing your suggested vbmeta image. Also is there a CP file for the T500 Tab? I don't seem to have it in the download firmware from Samsung.
[Samsung Galaxy Tab A series Guides, News, & Discus] suloku:
There's no cp file (as far as I ubderstood that's only for devices with sim card). Used Magisk 26.1 and odin 3.14.1 as suggested by the first page tutorial.
[Samsung Galaxy Tab A series Guides, News, & Discus] ahmad.shn:
Thank you! it worked finally, my problem seemed to be not enabling USB debugging after a bootloader unlocking.

Also, which rom do you have? is it worth installing a custom rom? do you actually get better performance than stock?
[Samsung Galaxy Tab A series Guides, News, & Discus] suloku:
I used stock because due to my needs root on stock is more than enough and I'm not comcerned about this specific device's performance as it currently fullfills my needs as is, so I can't really help you on that.
[Samsung Galaxy Tab A series Guides, News, & Discus] charlie..:
Which stock version are your running? I had problems updating to the latest stock and keeping root. (Reported one page back)

I will take a look later which version I'm on, because I am guessing you are not on the latest version. For the second latest firmware you could simply use the tutorial from the first post.
[Samsung Galaxy Tab A series Guides, News, & Discus] cappuccini:
On XDA there are threads about this topic. Search for unlock/ bypass FRP
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
I have yet to here from ANYONE who has actually succeeded in bypassing FRP since Android 7 or 8. There are several paid services which claim to do it, but NOT one person on XDA has ever verified that any of them work. IMHO, if the tablet hasn't been reported stolen and hasn't been active for a given amount of time, then the maker should unlock it. But that's NOT the way it works. They require "Proof of Purchase" to make sure it isn't stolen.
[Samsung Galaxy Tab A series Guides, News, & Discus] Luposian:
Thankfully, I finally got Recovery Mode activated and know the guy’s Google info, so now I’ll be able to use it, once I get back from our trip.
[Samsung Galaxy Tab A series Guides, News, & Discus] Frankyg:
Revert to Stock?

I'm currently rooted with A12 but not the most up to date firmware. I'm planning to sell the device and want to get it back to stock with the latest samsung software, ready for the next owner. What's the most straightforward way to achieve this?
[Samsung Galaxy Tab A series Guides, News, & Discus] Frankyg:
Ok, so I got into trouble....

I uninstalled Magisk and rebooted. I selected the completely uninstall option - I think the other option was to restore images, but I'm not certain.

Then I powered off and entered download mode (pressing vol up and down and connected to PC) I selected the option to lock the bootloader knowing that it would result in wiping. It did not reboot but entered Download Mode and shows the error:

Partition vbmeta

Reason vbmeta: Error verifying vbmeta image: HS_XXXXXXXXXXXX (not the actual string of letters)

Not sure what to do now, would appreciate some help. I've previously just downloaded (with frija) the lasest software for the device, so that's ready to use.

Thanks for any help,

FrankyG
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
If I'm not mistaken, you need to flash a stock ROM before relock will work.
[Samsung Galaxy Tab A series Guides, News, & Discus] Frankyg:
Can I do this from my current position with the error?

Do I use Odin to flash stock rom?
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
Yes, you should use Odin and it should show "added" if you are in download mode.
[Samsung Galaxy Tab A series Guides, News, & Discus] CyberdyneSystems:
I got this working, w/o issues....

i might look for a rom from twrp or others...

odin: Odin3_v3.14.4

Magisk-v26.1.apk

for the Firmware- i already had it installed, but i downloaded it for odins sake,

Download Galaxy Tab A7 (Wi-Fi) SM-T500 (XAR) T500XXU4CWD2 in Samfw - Samsung firmware download

Galaxy Tab A7 (Wi-Fi) SM-T500 (XAR - United States) T500XXU4CWD2 S(Android 12) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅

samfw.com

-- this is the US version
[Samsung Galaxy Tab A series Guides, News, & Discus] Tradescantia:
Hi! I followed the instructions and wanted to flash with odin when I reached step 6. It then failed pretty much at the end of the process. Now the KG status is prenormal and the OEM unlock option has disappeared from the developer options. I've tried flashing back to the original firmware, but that didn't change anything. What can i do to root my tab a7 successfully?

Solved: Connecting to WiFi solved the problem with the oem unlock option.
[Samsung Galaxy Tab A series Guides, News, & Discus] Peppeskere:
hello, my tablet reboot for a 1 hour it's normal? it's a galaxy tab a7
[Samsung Galaxy Tab A series Guides, News, & Discus] wantowan2:
Does the region matter so long as the language is the same? I can't find firmware for Canada
[Samsung Galaxy Tab A series Guides, News, & Discus] wantowan2:
Hi and thanks for this post.

Its been a while for me. I was used to compiling roms and kernels.

I came up with an error in odin.

These pics aren't in the right order but they show before, after and where i got the files.

I even tried erasing my samsung and google accounts that odin said and that didn't work.

I confirmed that the bootloader is unlocked too.

I tried a second copy of the patched AP file.

recommendations?

Attachments​

20230919_203422.jpg

3.8 MB · Views: 0

20230919_203458.jpg

2 MB · Views: 0

Screenshot_20230919-203734_Chrome.jpg

527.1 KB · Views: 0

Screenshot_20230919-203758_Chrome.jpg

492.1 KB · Views: 0

20230919_202934.jpg

2.1 MB · Views: 0

20230919_203305.jpg

3.3 MB · Views: 0
[Samsung Galaxy Tab A series Guides, News, & Discus] wantowan2:
Do you mean the file in the second post? The VBMeta_disabled file
[Samsung Galaxy Tab A series Guides, News, & Discus] suloku:
I specifically linked the vmeta_disabled file:

https://xdaforums.com/attachments/vbmeta_disabled-tar.5675277/

I did specify on my first post, I rooted using SM-T500_EUX_T500XXU4CWD2_fac update.

You have .md5 files loaded in odin...those are not the correct files.
[Samsung Galaxy Tab A series Guides, News, & Discus] cappuccini:
I have successfully rooted my Tab A7 with Android 12 about 10 months ago according to the very good tutorial. Now I want to update to the Samsung September firmware T500XXS6CWI2.

How is this possible without loss of data?
[Samsung Galaxy Tab A series Guides, News, & Discus] cappuccini:
First I installed the new update using dirty flash. However, the kernel did not settle down, was very nervous and the battery consumption very high. After a clean flash with factory reset, everything works great.
[Samsung Galaxy Tab A series Guides, News, & Discus] cappuccini:
After updating the latest firmware and rooting, I disabled many apps that I didn't need.

RAM management and battery consumption are great and the ROM is very smooth, everything works perfectly.

The battery consumption overnight in airplane mode is only 0 -1 percent, even when in use the consumption is very low.

For more security, I installed Hypatia malware scanner and AFWall to control internet traffic.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
People are always asking "How can I do this or that without losing data?". I've always thought that backing up any data you don't want to lose, was the obvious answer to that question. Personally, I move everything I can to the SD card and then depend on the Google backup to restore apps and setup even after a data partition format. I still miss being able to backup with TWRP, but I haven't ever lost anything important even without it.
[Samsung Galaxy Tab A series Guides, News, & Discus] cappuccini:
Of course, I backed up my data before updating.
[Samsung Galaxy Tab A series Guides, News, & Discus] bugativeyron:
I cant enter download mode;

Shows light blue screen with An error has occurred while updating the device software.

I followed every step until flashing with ODIN which resulted in fail (device COM was on but it coulnd't initiate the flash, froze on setupconnection)

I found a post up above suggestiv flashing online BL and CSC, then reboot, then flash magisk modifided AP. Did that, rebooted, checked for oem unlock - good, usb debugging - good; Already connected with google and samsung acc since bootloader unlock and reset. Went back to download mode and flashed modifided magisk AP, FAILED again on ODIN and now i can't enter download mode.

Suggestions please? I checked for bootloader lock and it said if i wanted to lock it, so it means it's still unlocked. Rebooting will always lead to "An error has occured while updating the device software"
[Samsung Galaxy Tab A series Guides, News, & Discus] bugativeyron:
Followed this on latest version (T500XXS6CWI2_T500OXM6CWI2_EUX) and works great thanks!
[Samsung Galaxy Tab A series Guides, News, & Discus] cappuccini:
I Ihink you didn't understand my question. Nevertheless, thank you very much for your answer...
[Samsung Galaxy Tab A series Guides, News, & Discus] Nikunj9897:
Hey, thanks for this, but i want to install project Elixir gsi in it, but i can't find anywhere if i can install it or not, and if i can install that gsi, can you help me do that :⁠-⁠)
[Samsung Galaxy Tab A series Guides, News, & Discus] anactualhuman:
Would it be possible to install android 5 on this device?

(Sorry if the answer is obvious, I'm new to this whole thing)
[Samsung Galaxy Tab A series Guides, News, & Discus] CyberdyneSystems:
WORKING AS OF DECEMBER 18th, 2023 @ 12MIDNIGHT :cool:

i will say, the tutorial was nice and easy. maybe cause ive done it several times.

this go around, i was trying a different rom... it locked my tablet and said Security error, if you get that, then just open odin and get into download mode and flash over samsung firmware

View attachment 6045178

this will boot normal then you can go back to the tutorial and flash over the patched magisk file of the AP one.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
You don't need both CSC and HOME. Using CSC wipes all apps and settings while HOME doesn't. When flash stock to recover from errors, it is best to chose CSC. But if you are just updating from one stock version to another, choosing HOME will keep it all intact. It is like "dirty" flashing a custom ROM.
[Samsung Galaxy Tab A series Guides, News, & Discus] tjmethod:
Hello

I see this is an old thread but trying to find any information on my Tab A7 which seems to have a more severe problem...

Secure Check Fail : Modem. It Will power on to the Samsung screen but then goes to the green security error. I cannot get it into download mode or recognized by Windows. I have all the stock firmware ready to go in Odin but no button combinations seem to work. I'm wondering if anyone might have any suggestions?

Thanks and happy holidays,

TJ
[Samsung Galaxy Tab A series Guides, News, & Discus] ZishanTherapyOwner:
KG STATE not showing + COM port also not showing.

Please Help
[Samsung Galaxy Tab A series Guides, News, & Discus] ExTall:
Hi TJ

Check your USB cable is correct for exchanging data, not just charging, also the USB port on your computer is functioning properly. Hold the power button down until tablet switches off and then plug in USB to tab and computer, switch on holding volume up and volume down. I don't know weather you need to hold power button as well or not.

If all the buttons work on your tablet then the only reason you may not be able to reach download mode will be to do with the USB connection
[Samsung Galaxy Tab A series Guides, News, & Discus] tjmethod:
Hi Thanks for the info!,

On the fourth shot I got it into download mode and it appeared in Odin. I went to firmware that was in a folder on the desktop. In Odin where the 4 buttons and fields where you put the files BL, AP, CP & CSC, I couldnt figure out what to put in the CP field. What was left was CSC_OXM_T500... & HOME_CSC_OXM_T500... After trying to find what to put there, I found that one post said HOME_CSC goes in the CSC field and that CP is for a phone so its a modem, so I didnt put anything in that field. I finall got to recovery where I could do a factory reset. I know I did something wrong because the tablet is boot-looping going from dim lock then home screen, stays there for a couple minutes then go black then to the Samsung startup screen, then to bootloader is unlocked (!) screen then black screen. Im wondering now if I should have put CSC file from the firmware in the CP field? I also tried to check for an update. It's on 12 and when I tried, it comes up with and error that says 'Your tablets operating system has been modified in an unauthorized way. Try updating using smart switch on your computer'. Odd since it was a factory reset but something didn't go right. The display frequently switches to the dimmest setting.

Do you have any suggestions from this point, maybe reflash the firmware and put the CSC in the CP field?- it did say something on the tablet about using calls and text from another deivice- I dont know but I definately need to redo it correctly
[Samsung Galaxy Tab A series Guides, News, & Discus] ExTall:
BL, AP and CSC for a clean install of Firmware.(like factory reset)

BL, AP, Home CSC to preserve user data.

All in correct fields.

Only use CP if you have a sim card and can make calls on your device like a phone, otherwise leave empty.

Make sure you have the right firmware for your country, some devices do not like the wrong countries firmware.

You can use Frija to grab the latest firmware

https://github.com/SlackingVeteran/frija/releases

Reflash stock firmware that is at least the same version as installed on the device or newer as the bootloader will rarely allow flashing older versions of firmware

Hope this helps.

If there is no hardware problem with the device then you will succeed eventually
[Samsung Galaxy Tab A series Guides, News, & Discus] valdonta:
I cant get oem unlock to appear, none of the methods work and I cant flash custom firmware as it gives vbmeta errors. Originally, oem unlock did appear and I flashed a custom firmware which then failed shortly after which required stock being reapplied, after that oem unlock never appeared again.

Download mode shows

OEM LOCK: ON (U1)

Does anyone know what that actually means, particularly the U1?

Which stock firmware should be used for a tablet sold in the UK?
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
The UK used to have its own CSC code but I think it is now bundle with Europe with EUX being the code. The latest stock T500XXS6CWI2 can be found on Sammobile and other sites. For help with OEM you'd be better of in the thread about flashing TWRP and GSI ROMs. But in general, if you don't have a Google Account registered, you won't see OEM.
[Samsung Galaxy Tab A series Guides, News, & Discus] Umar4011:
How to fix
[Samsung Galaxy Tab A series Guides, News, & Discus] thereisnospoon42:
I have an error says the following >

This phone has been flashed with unauthorized software and is locked. this happened at the last step i installed magisk and said okay for the first pop up when i got into the app.
[Samsung Galaxy Tab A series Guides, News, & Discus] thereisnospoon42:
i installed normal AP file and i got my tablet back, its fixed but i dont understand why i took that error

edit>i fixed and tried again it worked thanks a lot
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
That error normally happens when you lose momentary USB connection. Can happen just by moving the device around while it is flashing.
[Samsung Galaxy Tab A series Guides, News, & Discus] thereisnospoon42:
oh yes, i had a bad usb cable and so loose connection. i didnt know that was the reason thank you for answering
[Samsung Galaxy Tab A series Guides, News, & Discus] Noeb:
Hi guys... I need your help.

Attempted to flash my tab A7

OEM lock : ON

FRP Lock : ON

Secure download enabled

booting the tab and to go in developer mode to enable OEM unlock is a no no at this point ... Device won't boot pass green screen (security error) " error has occurred while updating the device software"

I have since tried a few stuff such as follow the tutorial here in the earlier post bu that failed, tried flashing stock firmware with odin and everything failed.

for me to have a successful flash, I figure I need to have at least OEM Unlock off.

how do I get around that?

various flashing tries brought different results

ONLY official released binaries are allowed to be flashed(super)

ONLY official released binaries are allowed to be flashed(recovery)

SM-T500

SM-T500nzsaxar
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
The error screen may or may not also be download mode. Does Odin show "Added" when you plug in the USB cable? If not, read this thread https://xdaforums.com/t/how-to-get-to-download-when-your-device-wont-turn-off.4663655/

or, you could try the same thing to get to recovery and doing a factory reset.

Even without OEM enable, you should be able to flash the LATEST stock ROM with Odin. The only time Odin should fail to flash stock, is when you try to flash an earlier version than what's already installed.

edit: BTW, you need to unlock the bootloader, which is NOT the same thing as enabling OEM. And you need to enable OEM both before and after unlocking the bootloader. You need to do that to either root or install custom ROMs.
[Samsung Galaxy Tab A series Guides, News, & Discus] Mohammed ali1:
i am stuck in the download mode not realy but it says an error haas occurred while updating the device software when i try to get out of it it just takes me bake to the same thing
[Samsung Galaxy Tab A series Guides, News, & Discus] Noeb:
The error screen seems to also indicate I'm in download mode.

Odin did Show it as added.

I was always trying to flash OS version 11 (which I assumed was on the tablet to begin with). It always failed. This time around I went with version 12... (This is where I got my firmware from https://samfw.com/firmware/SM-T500/XAR )

this is the firmware I flashed - SAMFW.COM_SM-T500_XAR_T500XXU3CVE7_fac

The flash process passed in Odin this time but the device won't boot. The Samsung boot screen came up n then it went to the charging screen and then went blank. So I put it on the charger and the charging symbol came up but it wasn't charging or showing any percentage. Hold down on the power button and the screen just flashes on and off but I can get into Download mode easily.

I then flashed SAMFW.COM_SM-T500_XAR_T500XXU3CVG4_fac ...

succeeded in odin with same result... wont boot... no charging percentage is displayed as I indicated above.

decided to leave it on the charger,...... what do u know... lol.. tablet was dead so as of writing this post, its now charging.......

Will update when its chargedView attachment 6088542View attachment 6088550.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
Actually

CVG4 is still only SW Rev level 3 and the latest is level 7. If you had a higher level installed, then a lower one won't work. Why aren't you flashing the latest ROM?
[Samsung Galaxy Tab A series Guides, News, & Discus] Mohammed ali1:
Yo lewmur sorry to bother you again but the twrp file I installed dosent work if you install it you will be stuck in the twrp mode so I flashed AP and the rest but I left out the home one I don't know what's that used for if you can tell me it would be great after I flashed them I setup the tablet I downloaded magisk and done the root am rooted now but I don't have twrp I went on the website I can't find Mty device so is there any twrp for sm-t505 or is it even possible to download twrp?

Thanks
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
You use either the CSC or HOME in the CSC slot. CSC will "factory reset" the tablet while HOME will allow you to keep your apps and settings. Think of it as CSC being a clean flash and HOME a dirty flash. What TWRP did you use? Did the try opening the /Advance/Terminal and typing exit_twrp and then /Reboot/System? If that doesn't work, you can still use it. Use 7zip to extract the recovery.img from the AP file and copy it to your tablet's SD card. Flash TWRP and use it for whatever reason. When you are ready to reboot to the sysem, flash the recovery.img from the SD card. Then if it reboots to recovery, it will be the stock recovery and you can then boot to system. This will keep you from having to reflash the entire stock ROM.
[Samsung Galaxy Tab A series Guides, News, & Discus] Mohammed ali1:
I USED THIS VIDEO TO DOWNLOAD TWRP

Twrp para Samsung Tab A7 LTE T505YouTube · Wells Jhones16 Nov 2022

Twrp para Samsung Tab A7 LTE T505

Atençao o processo do video formata a memoria do aparelho entao certifique-se de fazer um backup.outra coisa muito importante e o fato de que caso vc nao ten...

www.google.com
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
I just flashed that on my T500 and it worked. No problem booting to system by selecting /Reboot/System from the TWRP menu.
[Samsung Galaxy Tab A series Guides, News, & Discus] Mohammed ali1:
Do you think that would work on T505 or not I tried the system reboot it takes me out and when it boot it takes me back again if I installed twrp then root will go and lots of other things unless if use the home file instead of the csc would that work when flashing
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
TWRP should be flashed alone from the AP slot. You shouldn't be flashing CSC or BL along with it. And because it is only replacing the recovery partition, it would have no effect on root or your setup.
[Samsung Galaxy Tab A series Guides, News, & Discus] Mohammed ali1:
If I only flashed the AP file only nothing els and that will work without putting me in a bootloop where it keeps booting in twrp mode and when that happens what should I do should I factory reset or reflash something I don't want to lose data & in the video it show to flash the AP and and some other file in the data slot. I think it's a recovery image file correct me if am wronge

Would the version of twrp maybe causing the bootloop
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
Don't EVER flash AP without BL!! What I said was flash TWRP in the AP slot. That is only a recovery.img and NOT an AP file. It won't erase any files, setup or root.