yashsingh1/xdaforums huggingface dataset:
[Walmart Onn Tablets General] fatfingered:
Saw these in store and grabbed 2. Set one up and tinkering with it. Runs a bit smoother compared to Fire 7 2019. FCC ID A2HCT9E78Q for those interested. Has BT 5, tiny noticeable audio lag watching YT video & Pluto TV connected to bt wireless earphones. Android 10 Go doesn't appear to support youtube pip mode.
[Walmart Onn Tablets General] Okiera29:
I will be interested to see how development goes. Seems like at lot of devices use this SOC, so that leaves some hope. I had some wifi issues yesterday, but restarting the tablet fixed it. So far, I am happy for 28$. It is quite a bit lighter than my Samsung Tab A 7 ". Pubg is still running fine. Frame rate is nothing to write home about, but that is to be expected
[Walmart Onn Tablets General] FredQ:
I'm in the same boat. Picked one up this morning, unlocked the bootloader successfully but had no luck with mtk-su or any of that. Hopefully someone smarter than me gets this figured out :)
[Walmart Onn Tablets General] DB126:
Unlikely; need to read up on the (ridiculous and inexcusable) vulnerability mtk-su exploited, manufacture response and the heavy-lift challenges rooting newer Android builds. Possible, but unlikely.
[Walmart Onn Tablets General] FredQ:
After spending most of last night trying to get this working I'm uploading what I've got in the hopes that someone can get it to boot.

Following several tutorials and using a combination of SP Flash Tool and WWR MTK I managed to create the scatter file and then extract the whole rom giving me the boot.img.

However, after patching the boot.img with magisk manager and flashing it I'm getting a boot loop. I can flash the original boot.img back and it boots as normal but obviously this is without root.

If anybody wants to take a look and see if they can get it figured out feel free.

There are 4 files. The scatter file, original boot.img, then there are 2 magisk patched boot.img files. The first one is smaller than the original boot.img which I read is quite usual but some devices don't take well to the size difference. So the second patched img is padded to match the file size of the original. I can't get any of these to boot, both put me in a boot loop which can only be fixed by flashing the unpatched img again.

Model: 100015685-E

https://app.mediafire.com/91m2g8if4iain
[Walmart Onn Tablets General] RetroTho:
how did you manage to get out of the boot loop? I'm currently stuck in it from trying the exact same thing and I can't seem to access recovery mode or the boot loader or even manage to turn off the tablet.
[Walmart Onn Tablets General] FredQ:
To get out of the boot loop I had to flash the original boot.img using SP Flash Tool. Put the scatter file and the boot.img in the same folder. Then open the scatter file in SPF Tools and with only the boot.img checked click download when the tablet screen goes black as it's looping. It should then flash the file and when you power the tablet back on you should be good.
[Walmart Onn Tablets General] jason7246:
are you guys using windows 10 or 7 or? also, i have the -a verision of this tablet (100015685-A) and i was able to just get the scatter file that includes only the, Preloader? if that sounds right, and nothing else using WwR MTK v2.51(wich i believe is what RetroTho is using). now when i try and take that scatter file and use it SP flash Tool to do anything with it, it doesnt seem to do anything. i seen something about VCOM drivers (which i thought i had installed) but just in case tryed to install them using the .bat, and had no luck,(hence the OS question). so what am i missing if someone can help me? id like to try and get a complete rom backup if possible, to be safe, before i do anything else. or at least a boot.img and recovery.img. any help would be much appreciated.
[Walmart Onn Tablets General] TheCaptain22:
Removed
[Walmart Onn Tablets General] thecaptain0220:
After playing around with this for a while I got it to work. The problem is with Android Verified Boot. I used the scatter file created by [MENTION=2518648]FredQ[/MENTION] (Thanks!) and SP Flash tool to dump the vbmeta partition. Then I used the following commands to flash the modified boot image.

fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot erase cache
fastboot flash boot magisk_patched.img
fastboot reboot

This disables AVB and allows it to boot. I verified that I had root afterwards.

http://gofile.io/d/HXCmPd
[Walmart Onn Tablets General] thecaptain0220:
One unfortunate thing I found out is that the way the navigation bar is handled changed with Android 10. So far I haven't found a way to remove the Walmart button. This was one of the things I was hoping to do with root.
[Walmart Onn Tablets General] Okiera29:
This is great news! Thanks for the hard work. I will attempt to replicate on my second device and report back. Root should at least make it easier to get a system dump and such. Thanks again!

Well, shoot! now I am getting "--disable-verity is not recognized as an internal or external command, operable program or batch file" when I run the first command.

Never mind, if I run fastboot --disable-verification --disable-verity flash vbmeta vbmeta.img then it runs fine. Just flashed your patched boot as well. I will report in a moment. Well, now disable verity works, but it says there is no vbmeta file or directory. so it fails. so far, no root

Well, DUH! needs to be in bootloader mode LOL. Now that I have it there, all commands work, but I still don't have root after flashing your patched boot image
[Walmart Onn Tablets General] FredQ:
Amazing. I'm up and running and rooted now! Thanks for the help :)
[Walmart Onn Tablets General] jason7246:
hi, do you know if this will work with 100015685-A? thanks
[Walmart Onn Tablets General] teddyv1974:
seems like finding a way to root the $28 onn tablet is coming to an end (a video tutorial would be great)

but when i do unlock the bootloader on my 100015685-e tablet (adb reboot bootloader, fastboot flashing unlock), adb gives me this and my tablet keeps disconnecting from my laptop

C:\Users\Ted\Documents\platform-tools>fastboot flashing unlock
< waiting for any device >

this does the same thing with fastboot oem unlock

what is going on and how would i fix this? nothing was done towards the tablet
[Walmart Onn Tablets General] Okiera29:
Sorry, I was not clear in my first post. I know this sounds silly, but make sure developer options are turned on and that OEM unlock and adb debugging is turned on.

Go to settings, about tablet. Then tap the build number at the bottom seven times and that will turn on developer options. Then in developer options, turn on oem unlocking and adb debugging.

Then run adb devices. It should return your tablet's serial number and 'device' If it shows the device 'unauthorized' (mine did the first couple of times) revoke ADB authorization and plug the tablet back in.

Then it is just adb reboot bootloader and then fastboot flashing unlock.
[Walmart Onn Tablets General] teddyv1974:
i was going to edit my post but oh well

i had fixed what i was looking for: i used snappy driver installer origin to update my android driver, android adb showed up in my sdio list and i installed the driver from there, that resolved my issue (stupid mistakes can happen)
[Walmart Onn Tablets General] thecaptain0220:
I'm not sure what the difference it between the E and A. The documentation on these devices is terrible. I'm not sure if its running the exact same image or not. It should be a similar process, just not sure if the vbmeta or boot partition are any different.

I could send you the steps to use SP Flash Tool to get the two partitions needed. The only think I'm not sure of is if the scatter file would be the same. It would probably be possible to compare the files to the E model and determine if they are correct.

---------- Post added at 12:03 PM ---------- Previous post was at 12:00 PM ----------

Were you able to get it to work?
[Walmart Onn Tablets General] FredQ:
Anybody wanting to remove the "Orange State" warning message for this device can be done by flashing the file below...

https://gofile.io/d/lHeirr

And use the vbmeta.img that [MENTION=1461947]thecaptain0220[/MENTION] uploaded
[Walmart Onn Tablets General] Okiera29:
Nope, tried several different computers(Windows 8 and 10). I even tried to re-patch the patched img with magisk on a separate device. All to no avail. I downloaded the SP tool, but couldn't figure out how to pull the needed files to do it myself. The commands ran fine on both computers and even showed success in flashing both the vbmeta and patched boot, but when I run root checker, it still says root unsuccessful.

Okay, I think I have the SP flash tool figured out. Going to pull the boot.img off my device and patch it on a different device already running magisk. We will see what happens.

Okay, well it appears that I don't have the SP Flash tool figured out. When I try to readback the ROM, I get an error message 'read data exception(0xC0050007)'
[Walmart Onn Tablets General] thecaptain0220:
Do you see the orange state message on boot? Have you tried a different USB cord? Ive seen some weird things happen because of cables.
[Walmart Onn Tablets General] Okiera29:
I no longer see the orange state message as I flashed Fred's lk.bin file and removed it, which is why I am perplexed. If his lk file works, why doesn't your patched boot img? I am gonna try and see if I can figure out SP tools and the scatter file thingie. If I can pull the boot.img file off of mine, maybe I can patch it and get root.
[Walmart Onn Tablets General] FredQ:
Just a thought, I'm not sure if it will make any difference... But if my lk.bin file worked fine on your device, you could always try my patched boot.img file from here, if you haven't tried that one already: https://app.mediafire.com/91m2g8if4iain

You don't need the "padded" file. Get boot(patched).img that one worked fine for me.

It's likely exactly the same as the one that thecaptain0220 uploaded but it might be worth trying just to rule out that as an issue.
[Walmart Onn Tablets General] Okiera29:
Still no change. Everything flashes just fine according to fastboot, but root checker still shows no root. I am wondering if I even have the same file structure? That might be why I was getting a read error on SP tools when I was trying to pull the boot img from the tablet.

Another peculiar thing. After I flash the patched boot img and the table reboots, it starts and before I can unlock it(swipe up) it reboots again. Maybe that is a sign the boot is not being flashed completely or the disable verification isn't disabling? Now root checker just spins and spins, never giving an answer....???? Never mind, it took a couple of minutes, but still no root according to root checker
[Walmart Onn Tablets General] FredQ:
I hope this isn't too obvious of a question, but your model number is the same right? It's not a slightly different variation?

Mine is 100015685-E but apparently there's an "-A" model also. Not sure if there's an actual difference
[Walmart Onn Tablets General] jason7246:
That be great if you could send my the steps, like i said the only ive figured out how to do so far is get a scatter file that includes the preloader. So i think im missing something(s). Any help would be appreciated.
[Walmart Onn Tablets General] Okiera29:
Yup, both show up on my computer as 10015686-E
[Walmart Onn Tablets General] Okiera29:
Ok, I have no idea what happened or how it worked, but I have root. Here is exactly what I did.

adb reboot bootloader. Then I followed Capt's steps, but I used Fred's patched-padded boot image. I then erased cache before rebooting. I rebooted and the tablet booted up and then quickly rebooted. I then checked for root using root checker basic and it failed. I then looked for Magisk manager, which I had side loaded earlier in the day. The icon was a black square with the green android head(not sure why the icon changed) I opened Magisk and got a message saying that it needed to download some extra files for my environment. I clicked okay and Magisk downloaded and installed what it needed and rebooted the tablet. Once back up, I open MM again and this time there was a direct install option(there hadn't been before this, only the download zip and select and patch options) So, figuring what the hell do I have to loose, I selected direct install. Magisk did it's thing and then rebooted the tablet. Once rebooted, I opened magisk and safety net did not pass. So I opened root checker and low and behold, it says I have root. Heck, I even got the pop-up for root check asking for root access! I am going to see if I can replicate on my second(yes, I bought a backup just in case) and see if I can get root on that one two.
[Walmart Onn Tablets General] Okiera29:
Ok, magisk worked on the second tablet as well. My second tablet did not have Magisk on it. I downloaded it from the gihub page and installed it. Once again, it said it needed to download other files for my enivronment. Once downloaded, it rebooted and the direct install option was available. Long story short, while it does not pass safety check, I do have root. https://drive.google.com/folderview?id=11UIuxmdZEDHuQGrlvxU2W31q0PEezdyU

fixed the link so now everybody can see the screen shots LOL
[Walmart Onn Tablets General] chrismoo:
So I thought I'd followed all of the steps as detailed here but now instead of the boot looping issue I have a tablet with no display. Using the power button I cannot get into the bootloader, I've tried Vol up/Down/Vol up and down, the reset button and nothing comes up on the display now. Plugged into the computer the USB keeps chiming on/off and at some point I got it up as a mounted drive it looked like but no way to access via ADB or FASTBOOT. ADB shows no devices and FASTBOOT is waiting for device.

Any other suggestions or have I completely bricked the device.

Thanks
[Walmart Onn Tablets General] jason7246:
At any point can you get the screen to be basically black but lit up a little? Or when its plugged in, can you get it to show up as something like mediatek preloader usb vcom?
[Walmart Onn Tablets General] chrismoo:
No :(

Just a blank screen, does not look like the backlight is coming on at all which seems very odd and not hopeful. No response on ADB or FASTBOOK.

---------- Post added at 08:45 PM ---------- Previous post was at 08:37 PM ----------

Ok, now I have it on USB, trying to restart it with volume up and power and it appears as a drive on Windows:

This PC\100015685-A

Says Generic USB Hub in Device Manager (Windows 10)

Is there any way to force it to update like Android phones of old with an UPDATE.ZIP on a MicroSD card with the old config or am I screwed.
[Walmart Onn Tablets General] Okiera29:
If somebody has pulled the stock ROM using SP tools(I tried several times and failed) You can use SP Tools to flash the stock ROM back on the tablet. That might solve your brick issue. Fred or Captain might have the stock ROM
[Walmart Onn Tablets General] jason7246:
If someone can possibly get step by step directions to get a scatter file thats not just the preloader, then eventually pull the full rom, i may be able to help. I had asked that previous question cause i had either flashed the wrong boot.img or somehow managed to flashed it incorrectly wich resulted in first boot looping and after later trys, back lit only screen and then it showing up as mediatek usb preloader vcom or something like that, but i got it fixed eventually. So now wanting to pull full rom with rooted -A varient.

---------- Post added at 05:08 AM ---------- Previous post was at 05:01 AM ----------

Maybe stupid question, but can u get it to show up as anything else with different button combinations? Maybe power+vol up? Im trying to remember what all i did with my mine.
[Walmart Onn Tablets General] chrismoo:
Pretty much tried all button combos I can think of but it does seems to transfer files using PS Flash, I guess I just need the right combination of files. I tried the patched boot img, the lk file and the vbmeta and it looks like they transferred but nothing happens on the tablet. Like you say, maybe a full original download from a backup might do it. Kicking myself so hard...
[Walmart Onn Tablets General] jason7246:
Ok, i think i have a rom backup, but im not seeing a system.img trying to figure it out, but currently lost.
[Walmart Onn Tablets General] chrismoo:
Would you by any chance have a backup of the stock ROM? I bricked mine ......
[Walmart Onn Tablets General] jason7246:
I could post a link of i was able to pull rom wise, but as i so far haven't figured out why there is no system.img , im not sure how much help it would be, i think i got everything else but that. Thinking maybe something changed with android 10. Not sure.
[Walmart Onn Tablets General] jason7246:
ok, here is the link to what i was able to pull as a rom from my tablet(100015685-A), however there is still no system.img, im not sure what im missing as far as that goes. i am not sure though that the files that are linked have my personal info or not, so if it does, PLEASE delete my info when you are aware of it. also i pulled an as is rom as well which seemed to have more files in it, so if you think you need something else, i might be able to help.

Google Drive: Sign-in

Access Google Drive with a Google account (for personal use) or Google Workspace account (for business use).

drive.google.com
[Walmart Onn Tablets General] FredQ:
@jason7246 remove the userdata.img from your uploads and you should be ok
[Walmart Onn Tablets General] jason7246:
Ok thanks, does anyone know how to get system.img off these onn tablets?
[Walmart Onn Tablets General] chrismoo:
THANK YOU!!

I'll try this and see what happens!
[Walmart Onn Tablets General] chrismoo:
Should I choose Download Only or Firmware update or Format All/Download

Don't want to screw up any further lol!
[Walmart Onn Tablets General] chrismoo:
Ok, good news and MANY Thanks!! The tablet is kind of back from the dead. Initially it would not work as before but after some mashing of power and reset it booted with the Orange flag, unlocked warning, rebooted, and then went into the initial startup and loaded up as a new tablet. The tablet is still rebooting though when you go into any Google app or Settings. I'm wondering now if I should try and reflash the BOOT.IMG and the LCK files again?

I have managed to get it back into recovery so I can drop back into fastboot to try and push the files over.

Do you think this is the best step? Which of the BOOT.IMG files were you successful with? Do I also need to push a new vbmeta?

Thank you again for getting me unbricked, now it is just getting the steps to hopefully stop the booting issues ad attain the almighty ROOT access!!
[Walmart Onn Tablets General] jason7246:
When i tested the one regular boot.img file it worked fine for me, as far as the rebooting issue, my guess its a system.img issue, BUT, im not an expert on that stuff, im still learning myself. I have gotten mine rooted with the magisk patched boot.img though which i can also provide, with the steps mentioned earlier, however im not sure if they used the stock vbmeta.img along with those commands or a modified one. I personally am waiting on stock system.img before i even attempt to flash a gsi,(id really like to try android 11 on this). Im halfway tempted to try and make a twrp for this, partly to try and backup the system. But im a total noob for making twrp. Does anyone else happen to have made or found one yet?
[Walmart Onn Tablets General] chrismoo:
I'd love to try your patched version, knowing it is a good file to try - should it be sent over fastboot or again through SP Flash? Thank you for your help and patience!
[Walmart Onn Tablets General] jason7246:
I flashed it through fastboot personaly i believe, honestly its been a little while since i did it so im not 110% sure, ive been busy. When I get home though ill put it in that link.
[Walmart Onn Tablets General] jason7246:
ok, i made a new folder within that that link that contains the patched boot that i believe works, remember to use the instructions stated in the earlier post. if that one doesnt work, i can make another.
[Walmart Onn Tablets General] PleaseBeNicetoMe:
You all have been a ton of help! I really can't express that enough.

I was able to get mine rooted and working great after my inexperience led me to repeat every single mistake here so far haha! But now I screwed up again. Has anyone been able to get the system.img?

I had everything working and I messed with the build.prop file. I went to save it and it erased it completely. I had a saved copy but my file manager wouldn't allow me to copy it over. I still consider myself a novice at all this.

It rebooted and now is just stuck at the logo splash screen. All I can think is it's from the build.prop file missing or corrupted since that's all I changed. Does anyone have a copy of that I can share? Along with better instructions for how to push it over to the system folder?

The other problem I ran in to is that ADB no longer recognizes my device. Fastboot does, but ADB does not. I am thoroughly lost. A complete reset would be wonderful at this point.

Thanks for any help you have. I'm new here.
[Walmart Onn Tablets General] chrismoo:
I'm with you, I think I need that SYSTEM.IMG file, mine is back to being a black brick again after the Orange State boot loop again - ugh!
[Walmart Onn Tablets General] Okiera29:
Ok, I would suggest that you push all the files back to the tablet through SP flash again and get back to a working state. Then we can get you through the other steps needed for root. Once you have root, as inexperienced as you are, I would suggest not messing with anything LOL. Don't worry, I am still a noob with all this stuff too. In the future, if you want to mess with build.prop and such, pull it from the tablet and save it to a PC first. Wait, I didn't see that you had your build.prop saved. You should be able to push it back to the device with ADB, as long as it is saved somewhere else besides the tablet. I think you can push it using fastboot as well. Again, I am just as much a noob as you are
[Walmart Onn Tablets General] tytydraco:
Went ahead and picked one up today. I dumped every partition.

The /system partition is now part of "super" with the addition of Dynamic Partitions. I have everything dumped here on the latest OTA:

onn7g2_dump.zip

drive.google.com
[Walmart Onn Tablets General] tytydraco:
Oh, I also intercepted the OTA to the latest patch. It contained the stock vbmeta.img as well as a sparse map.

1.25.107.zip

drive.google.com
[Walmart Onn Tablets General] tytydraco:
Update: Can confirm that the super.img i pulled WORKS.

fastboot flash super super.img

It takes a god awful amount of time. Just let it sit.
[Walmart Onn Tablets General] tytydraco:
I tried the AOSP Android 10 GSI for ARM-aonly-vanilla, it didn't boot sadly.
[Walmart Onn Tablets General] Okiera29:
Thanks a ton!! Downloaded it and saved it to a couple places for when I inevitably brick the device LOL
[Walmart Onn Tablets General] PleaseBeNicetoMe:
You've done amazing work! Thank you. Sad the AOSP rom didn't boot. I wish I knew more to help. I now have 2 successfully rooted gen 2 7-inchers for the kids (with Pokemon go GPS spoofing working like a charm if anyone is curious - too evil?). Only defect I've found in Android 10 Go is the "Draw over other apps" functionality is disabled. I'd love a basic stripped down ROM that could restore full Android for that. I have no doubt someone will get it working, given enough time.

I also got the newer 10.1" pro ONN tablet. I unlocked the bootloader the same way, but don't have img files for Magisk to patch. Only stock images I can see on XDA are from the 2019 variety. Maybe this is a good chance to learn how to extract the images myself.
[Walmart Onn Tablets General] jason7246:
So that's why the super file that i seen when i pulled the rom off my device was so big, i thought that MIGHT be the case but wasn't sure and didn't want to take a chance until i knew for sure, huh interesting. So, just to confirm, to fix/flash system is actually just flashing super?