(HELP NEEDED) Onn 8" gen 2, 100011885 no boot - Walmart Onn Tablets General

So I didn't happen to back up my scatter or boot.img files when I used fastboot to try and flash the TWRP for the onn 10 inch, I was assuming it would work, but now I'm stuck with no recovery, no fastboot, no system, won't boot up when you hold the power button.
The only method of recovery I have is through MTK preloader and spflash, but I don't have the correct factory images or scatter file required to reflash stock. I've been looking everywhere online and can't find the right recovery files or any guides on how to recover from this.
Any help/files/advice would be greatly appreciated!!

Two things, I got access to my old account after a password reset
and, I got my tab back up and running, as well as root & xposed + gravitybox
I'm working on a guide as we speak.

Also, I will be dumping my firmware and adding the 10001885 to the list of stock image dumps on the main onn thread.

Hope this helps if still needing it, scatter file for the 100011885 mt8168 , good luck not responsible for anything lol i still cant get mine to work, anklosburner
Ankylo'sburner said:
So I didn't happen to back up my scatter or boot.img files when I used fastboot to try and flash the TWRP for the onn 10 inch, I was assuming it would work, but now I'm stuck with no recovery, no fastboot, no system, won't boot up when you hold the power button.
The only method of recovery I have is through MTK preloader and spflash, but I don't have the correct factory images or scatter file required to reflash stock. I've been looking everywhere online and can't find the right recovery files or any guides on how to recover from this.
Any help/files/advice would be greatly appreciated!!
Click to expand...
Click to collapse
hope this helps if you still need it for 100011885 mt8168 scatter file, but not responsible for any damages, because i still cant get mine to work, i had it to where it would come on, or i could see back light but thats it, which im impatient too, maybe it takes a min, but i did a readback on every downloadable item and flashed it but idk, let me know if you or how you get yours to work if you do

bbcdt22 said:
Hope this helps if still needing it, scatter file for the 100011885 mt8168 , good luck not responsible for anything lol i still cant get mine to work, anklosburner
hope this helps if you still need it for 100011885 mt8168 scatter file, but not responsible for any damages, because i still cant get mine to work, i had it to where it would come on, or i could see back light but thats it, which im impatient too, maybe it takes a min, but i did a readback on every downloadable item and flashed it but idk, let me know if you or how you get yours to work if you do
Click to expand...
Click to collapse

Hey, i've had that same issue but have since fixed it by flashing the rom to the 100011886. I used some of the posts here to flash both vbmeta.img and boot.img to gain root, with success https://drive.google.com/drive/folders/17LtLtjKg4JJU9EJdIXPsyNjen0H-ilMX?usp=sharing . i eventually went too far and currupted my rom and had a hard time finding the stock ROM. I found the stock ROM to the 100011886 and flashed that to fix the problem, now i run that as my system and it boots up just fine. https://www.mediafire.com/file/107jp6gwbiwq87q/MT8168_ONN_Gen2_100011886.zip/file
fastboot erase super
fastboot flash super super.img

Would you happen to have the preloader bin file for the MT8168? After digging around, you have helped me get closer to bringing my hard brick back to life.
Edit: @bbcdt22

onn. said:
Would you happen to have the preloader bin file for the MT8168? After digging around, you have helped me get closer to bringing my hard brick back to life.
Edit: @bbcdt22
Click to expand...
Click to collapse
I don't, but this thread may help:
[STOCK] Stock Backups/Images/OTAs
Since these tablets don't have an external online resource for downloading system updates, only a sketchy OTA app (com.adups.fota) I'm collecting a library of OTAs, as well as boot/recovery/system images. I have access to a 10.1 with keyboard...
forum.xda-developers.com
Any rom you come across has to be extracted in order to get any necessary files from it. The thread mentions using 7zip but I've personally had better results extracting using ZArchiver. Also, a workaround I've found very useful when dealing with extraction issues, is removing the extension from the file. If all else fails, you may need to erase the super partition and reflash THAT

KMerrimanJr said:
I don't, but this thread may help:
[STOCK] Stock Backups/Images/OTAs
Since these tablets don't have an external online resource for downloading system updates, only a sketchy OTA app (com.adups.fota) I'm collecting a library of OTAs, as well as boot/recovery/system images. I have access to a 10.1 with keyboard...
forum.xda-developers.com
Any rom you come across has to be extracted in order to get any necessary files from it. The thread mentions using 7zip but I've personally had better results extracting using ZArchiver. Also, a workaround I've found very useful when dealing with extraction issues, is removing the extension from the file. If all else fails, you may need to erase the super partition and reflash THAT
Click to expand...
Click to collapse
Thanks for the response. I'm at the end of that thread currently trying to see what I can find to fix my issue. Aside from buying another one from Walmart and trying to see if I can pull everything from a vanilla tablet, I'm not sure if I'll ever find the exact files.

onn. said:
Thanks for the response. I'm at the end of that thread currently trying to see what I can find to fix my issue. Aside from buying another one from Walmart and trying to see if I can pull everything from a vanilla tablet, I'm not sure if I'll ever find the exact files.
Click to expand...
Click to collapse
onn. said:
Thanks for the response. I'm at the end of that thread currently trying to see what I can find to fix my issue. Aside from buying another one from Walmart and trying to see if I can pull everything from a vanilla tablet, I'm not sure if I'll ever find the exact files.
Click to expand...
Click to collapse
When my tab crashed on me, flashing the super image solved my issue but it was a different rom. My tab's model number ended in 885 but the super file I flashed came from an 886, it still worked though

KMerrimanJr said:
When my tab crashed on me, flashing the super image solved my issue but it was a different rom. My tab's model number ended in 885 but the super file I flashed came from an 886, it still worked though
Click to expand...
Click to collapse
I wish I would have waited until I read this today instead of further messing with it yesterday. It looks like everything you have is what I need, but now I am battling trying to get the COM port to stay active when the device is plugged in. I'll tinker with it and see if I can get back to the state I had it in yesterday where it was staying connected.

KMerrimanJr said:
When my tab crashed on me, flashing the super image solved my issue but it was a different rom. My tab's model number ended in 885 but the super file I flashed came from an 886, it still worked though
Click to expand...
Click to collapse
Would you happen to know/remember all the settings you checked in SP Flash Tool (I assume you used that) when you flashed things to get it working? It seems that my PC is able to communicate with the device again, but I'm unsure of how to proceed next.

Have you installed all of the adb & mtk drivers? If so, you should be able to use adb to reboot into the boot loader then use fast boot to flash the super file

KMerrimanJr said:
Have you installed all of the adb & mtk drivers? If so, you should be able to use adb to reboot into the boot loader then use fast boot to flash the super file
Click to expand...
Click to collapse
It's hard bricked at the moment unfortunately, so there's no appearance of life to it. Attached picture is the error I get. https://www.gizmoadvices.com/list-sp-flash-tool-error-codes-solution-fix/ appears show info about the error, but it's not something I know how to fix yet.
The only way I can get the tablet to make moves in device manager (which I assume is a sign that the PC can at least partially recognize/see the device) is to click on Download in SPFT, connect tablet to PC via USB cord, and then hold down power button, which led to the error. Errors in SPFT I've received so far are 0xC0060001 and 0xC0060003.
When the tablet is active in the device manager, I assume that the device is in a powered state. However, when the device is grayed out, I assume it's in a powered off state (see other pic). I've yet to find away to actually flash anything to it.

KMerrimanJr said:
Have you installed all of the adb & mtk drivers? If so, you should be able to use adb to reboot into the boot loader then use fast boot to flash the super file
Click to expand...
Click to collapse
Also, apologies if I'm being a bother, but do you know what version of SPFT you used as well as which DA file?

bbcdt22 said:
Hope this helps if still needing it, scatter file for the 100011885 mt8168 , good luck not responsible for anything lol i still cant get mine to work, anklosburner
hope this helps if you still need it for 100011885 mt8168 scatter file, but not responsible for any damages, because i still cant get mine to work, i had it to where it would come on, or i could see back light but thats it, which im impatient too, maybe it takes a min, but i did a readback on every downloadable item and flashed it but idk, let me know if you or how you get yours to work if you do
Click to expand...
Click to collapse
where did you get this? did you dump it? if so how?

Related

Caught in a Boot Loop, no escape from reality

I guess I got a little too adventurous by trying to format my SD card to have two partitions, and now …
I'm in a really fast boot loop; adb can't seem to interrupt it, and I can't seem to invoke recovery mode properly.
It says "[FACTORY] : detect recovery mode !" … and goes back to rebooting, or if the battery is low enough, it shuts off.
I ran the battery down to no avail.
So, uh, what's next?
Looks like you're in the same boat as I am! I too have a Nook that appears to be bootlooped; it seems like I overwrote the recovery and boot partitions. I've heard rumors of some sort of tool called "SP Flash Tool" or similar, that works before the device has even fully turned on; I might take a look at it if I get time someday. Or maybe you'd like to give it a try?
saagarjha said:
Looks like you're in the same boat as I am! I too have a Nook that appears to be bootlooped; it seems like I overwrote the recovery and boot partitions. I've heard rumors of some sort of tool called "SP Flash Tool" or similar, that works before the device has even fully turned on; I might take a look at it if I get time someday. Or maybe you'd like to give it a try?
Click to expand...
Click to collapse
SP Flash Tool didn't work for me, because I couldn't create a scatter file. I got it replaced by B&N as a hardware failure, and then I tried to make a scatter file with the new Nook. No dice. Which is unfortunate, because I accidentally deleted some of the stock software. So… I'm trying for a second warranty replacement. :-/
Batshua said:
SP Flash Tool didn't work for me, because I couldn't create a scatter file. I got it replaced by B&N as a hardware failure, and then I tried to make a scatter file with the new Nook. No dice./
Click to expand...
Click to collapse
Sorry for my ignorance, but would you mind adding a bit more detail here so I can follow along (I've never used SP Flash Tool)? So you have a copy of SP Flash Tool that works for this device, i.e. recognizes it and everything, and it asked you for a scatter to flash the recovery? Why did creating a scatter file fail?
Also, regarding getting a replacement: did you just send your Nook back to Barnes and Noble and they sent you a new one under warranty, or was there something else wrong with it?

Restore BNTV460 Stock Firmware help

I flashed the extracted aiomobilestuff.com BNTV460-v1.0.0_20180724.zip using spflash tool. However, the tablet now barely runs. The barnes and noble settings and apps crash if I try log in. The startup wizard crashes the first time, and I sometimes get a red border around every time I tap something.
Is there a way to fix this tablet or is it a dud now?
Ive tried factory reset, clear cache, nothing works. Interestingly, if I go to the normal settings app, nothing appears under serial number, etc. So it's no longer being able to read some of the hardware I'm guessing.
hassanhassan said:
I flashed the extracted aiomobilestuff.com BNTV460-v1.0.0_20180724.zip using spflash tool. However, the tablet now barely runs. The barnes and noble settings and apps crash if I try log in. The startup wizard crashes the first time, and I sometimes get a red border around every time I tap something.
Is there a way to fix this tablet or is it a dud now?
Ive tried factory reset, clear cache, nothing works. Interestingly, if I go to the normal settings app, nothing appears under serial number, etc. So it's no longer being able to read some of the hardware I'm guessing.
Click to expand...
Click to collapse
Hey, if you still have this device laying around somewhere, could you try updating from that firmware to see what happens?
turtleletortue said:
Hey, if you still have this device laying around somewhere, could you try updating from that firmware to see what happens?
Click to expand...
Click to collapse
I can't update, every time I try to access the barnes and noble settings app it crashes, every time I try to open the B&N app to log in, once I enter my username and password it crashes also.
hassanhassan said:
I flashed the extracted aiomobilestuff.com BNTV460-v1.0.0_20180724.zip using spflash tool. However, the tablet now barely runs. The barnes and noble settings and apps crash if I try log in. The startup wizard crashes the first time, and I sometimes get a red border around every time I tap something.
Is there a way to fix this tablet or is it a dud now?
Ive tried factory reset, clear cache, nothing works. Interestingly, if I go to the normal settings app, nothing appears under serial number, etc. So it's no longer being able to read some of the hardware I'm guessing.
Click to expand...
Click to collapse
I've been experimenting with my own since I bricked mine as well, and I was able to bring mine to full functionality. Here are a few things I learned. The scatter file in the firmware on the internet is messed up. They made the scatter file incorrectly, so as a result, whenever you flash the device with it you have to completely flash it. Their firmware has also been tampered with and probably doesn't have a serial number in it. So, I bet you wiped all of your partitions, including ones that potentially had the serial number. I dunno how to fix it, maybe see if you can get a new one from B&N for no extra cost. Unless you have a full sp flash tool backup of the device before you bricked it, I'm unsure of what to do for you. I was able to help myself because I only messed up system.img, which I took a backup of before modifying it, and I used the wwr_mtk + sp flash tool guide to make a proper scatter file so I could flash my system.img using download in sp flash tool. (Also sorry that it's been a few months since I've responded, I just thought up how I could fix my own device last night and successfully did it). Also, here is my scatter file.
hassanhassan said:
I can't update, every time I try to access the barnes and noble settings app it crashes, every time I try to open the B&N app to log in, once I enter my username and password it crashes also.
Click to expand...
Click to collapse
So here is the only solution I can think of (if you still have this device).
Download the latest boot.img and system.img (available here https://androidfilehost.com/?fid=4349826312261752630 ) and use the scatter file to flash them to the device (download mode and check system and boot and select both of the files). Let me know if you encounter any errors if you try this. NOTE: This rom is only for the Oreo version of this device, BNTV460, so for anybody with the BNTV450/Marshmallow device, your device likely will get messed up by this.
turtleletortue said:
So here is the only solution I can think of (if you still have this device).
Download the latest boot.img and system.img (available here https://androidfilehost.com/?fid=4349826312261752630 ) and use the scatter file to flash them to the device (download mode and check system and boot and select both of the files). Let me know if you encounter any errors if you try this.
Click to expand...
Click to collapse
I'm getting an error, "S_DL_GET_DRAM_SETTING_FAIL - Obtain DRAM Failed" when trying to flash any firmware files. I've tried a few different versions of SP Flasher and drivers... any input on that? How did you power on your device for flashing? My battery is completely dead and I'm plugging it in after hitting Download of SP Flasher... it recognizes the device and begins flashing, but fails.
xKroniK13x said:
I'm getting an error, "S_DL_GET_DRAM_SETTING_FAIL - Obtain DRAM Failed" when trying to flash any firmware files. I've tried a few different versions of SP Flasher and drivers... any input on that? How did you power on your device for flashing? My battery is completely dead and I'm plugging it in after hitting Download of SP Flasher... it recognizes the device and begins flashing, but fails.
Click to expand...
Click to collapse
Questions I have for you that may influence how you should handle this:
- Is the tablet you are on the Marshmallow Nook Tablet 7 (BNTV450) or the Oreo Nook Tablet 7" (BNTV460)? Ignore the rest of my questions and my advice if it is the Marshmallow BNTV450 one.
- Did you flash the stock rom that the original author of this thread flashed (the shady one that messed his device up) before trying this?
- Are you able to boot into any kind of OS? If so, let it charge and then go into that OS and finish charging before doing anything
That error sounds like a result of the shady stock firmware, since it has a different scatter file. Flashing that rom makes people lose some specific device identifiers that make it so the original firmware from B&N won't work anymore as I have seen so far.
Here is my advice if you have the Oreo Nook Tablet 7": Charge the BNTV460 as much as you can, and follow this guide to make a backup of the exact firmware on that Nook Tablet 7" https://forum.hovatek.com/thread-21970.html If the readback step gives you that same dram setting error, your device is likely a brick if it cannot boot into any OS, and you should try to exhaust any type of warranty or replacement plan with B&N that you have to get a replacement, otherwise you can continue with the rest of the guide to make a proper scatter file and rom backup for your device. I will try to guide you to my best of my ability, but this is a really confusing area due to all of the things that can go wrong and all of the risks of bricking the device permanently.
turtleletortue said:
Questions I have for you that may influence how you should handle this:
- Is the tablet you are on the Marshmallow Nook Tablet 7 (BNTV450) or the Oreo Nook Tablet 7" (BNTV460)? Ignore the rest of my questions and my advice if it is the Marshmallow BNTV450 one.
- Did you flash the stock rom that the original author of this thread flashed (the shady one that messed his device up) before trying this?
- Are you able to boot into any kind of OS? If so, let it charge and then go into that OS and finish charging before doing anything
That error sounds like a result of the shady stock firmware, since it has a different scatter file. Flashing that rom makes people lose some specific device identifiers that make it so the original firmware from B&N won't work anymore as I have seen so far.
Here is my advice if you have the Oreo Nook Tablet 7": Charge the BNTV460 as much as you can, and follow this guide to make a backup of the exact firmware on that Nook Tablet 7" https://forum.hovatek.com/thread-21970.html If the readback step gives you that same dram setting error, your device is likely a brick if it cannot boot into any OS, and you should try to exhaust any type of warranty or replacement plan with B&N that you have to get a replacement, otherwise you can continue with the rest of the guide to make a proper scatter file and rom backup for your device. I will try to guide you to my best of my ability, but this is a really confusing area due to all of the things that can go wrong and all of the risks of bricking the device permanently.
Click to expand...
Click to collapse
Thanks for the quick response. It is the BNTV450/Marshmallow, which may be part of the problem. I do get the same error on the readback. It may be time to just retire the thing and grab a new ereader, I got a few years out of it and it was cheap.
EDIT: To respond to your question, I did use the shady ROM above. So note to others: don't do that...
xKroniK13x said:
Thanks for the quick response. It is the BNTV450/Marshmallow, which may be part of the problem. I do get the same error on the readback. It may be time to just retire the thing and grab a new ereader, I got a few years out of it and it was cheap.
EDIT: To respond to your question, I did use the shady ROM above. So note to others: don't do that...
Click to expand...
Click to collapse
Yeah, your device may be completely bricked. The Nook Tablet 7's are confusing due to the two of them being only slightly different, but different enough for disaster to happen.

how to enable Exfat for sd cards on Walmart Onn Tablet (10.1 inch w/ keyboard)?

Hi,
This is my first time trying to root a tablet but managed to unlock the bootloader and install magisk + Edxposed, but was unable to find a module that enabled exfat for the sd card.
Currently it only reads Fat32 formatted cards but I would like to load a 10gb file on there that the device can read.
Any ideas how to go about this? will flashing a custom kernel/ rom help me with this?
All help is appreciated.
Thanks in advance!
rachelld said:
Hi,
This is my first time trying to root a tablet but managed to unlock the bootloader and install magisk + Edxposed, but was unable to find a module that enabled exfat for the sd card.
Currently it only reads Fat32 formatted cards but I would like to load a 10gb file on there that the device can read.
Any ideas how to go about this? will flashing a custom kernel/ rom help me with this?
All help is appreciated.
Thanks in advance!
Click to expand...
Click to collapse
I believe you'd need something like vold-posix, along with a version of magisk modified to inject it
But vold-posix is for Android 8.1, although I believe there is a modified 9 build for Pixels.
I'm not even sure if anyone has gotten any custom roms working on any of these yet, but if they have, might be your only option.
Thanks!
As of now I think I bricked it....
I messed around and accidentally erased the system partition, tried to fix it by flashing the image posted here (https://forum.xda-developers.com/wa...eral/stock-stock-backups-images-otas-t3998227) and now the screen won't turn on, no recovery mode, no adb..... the device is still detected through the SP flash tools though.
I think the image I used wasn't complete - can anyone upload a complete working image (including a scatter file) I don't care if it's stock or custom, just need something working on the device.
Thanks all!
rachelld said:
Thanks!
As of now I think I bricked it....
I messed around and accidentally erased the system partition, tried to fix it by flashing the image posted here (https://forum.xda-developers.com/wa...eral/stock-stock-backups-images-otas-t3998227) and now the screen won't turn on, no recovery mode, no adb..... the device is still detected through the SP flash tools though.
I think the image I used wasn't complete - can anyone upload a complete working image (including a scatter file) I don't care if it's stock or custom, just need something working on the device.
Thanks all!
Click to expand...
Click to collapse
Uploading my WWR backup right now. Kinda slow internet at work so I'll post the link tomorrow morning. Probably around 10am EST. It also has the scatter.
Edit: https://www.dropbox.com/s/pmgbaik485pa9st/ONN%2010KB%20Tablet%20ONA19TB007.zip?dl=0
razredge said:
Uploading my WWR backup right now. Kinda slow internet at work so I'll post the link tomorrow morning. Probably around 10am EST. It also has the scatter.
Click to expand...
Click to collapse
Thanks so much! Will try flashing this when I get home later today
rachelld said:
Thanks so much! Will try flashing this when I get home later today
Click to expand...
Click to collapse
Thanks for posting it, unfortunately it seems that my device was hard bricked and will not turn on anymore - even to the black screen I had before.
rachelld said:
Thanks for posting it, unfortunately it seems that my device was hard bricked and will not turn on anymore - even to the black screen I had before.
Click to expand...
Click to collapse
Is it still detected by the computer? That's really all you need to flash the ROM. I would be careful not to overwrite or format the unit-specific data on the emmc, like nvram, proinfo, persist, etc. I hope those did not get corrupted on your device.
rachelld said:
Thanks for posting it, unfortunately it seems that my device was hard bricked and will not turn on anymore - even to the black screen I had before.
Click to expand...
Click to collapse
Is your computer still detecting it? What specific errors is SFFT giving you? Did you follow the guide HERE?
Appreciate all the help here! I did follow that guide but I believe I messed up when I deleted the internal storage so the flashing did not work...
Either way I have another one to play with as these were super cheap on black friday - does anyone have any ideas for my original question?
I don't mind flashing a custom rom if anyone knows of one that works with this device.
@rachelld, I don't understand what you mean by "deleted the internal storage" (I don't think you can delete the emmc chip ), but these tablets are basically unbrickable as long as you have a backup or at least the device-specific areas remain in the ROM. There is also no secure boot to speak of.
@diplomatic Have no idea what I did but at one point I did hit a Chinese screen and clicked clear Emmc now that you mention it... (At least that's what Google translate told me it meant....)
I am left with a device that won't turn on at all, sp flash tools claims that it flashed successfully but still no response from the power button
@rachelld, what about connecting it to the wall charger?
diplomatic said:
@rachelld, what about connecting it to the wall charger?
Click to expand...
Click to collapse
Nothing doing, no sign of life. Tested the charger with another device to make sure it's working
rachelld said:
@diplomatic Have no idea what I did but at one point I did hit a Chinese screen and clicked clear Emmc now that you mention it... (At least that's what Google translate told me it meant....)
I am left with a device that won't turn on at all, sp flash tools claims that it flashed successfully but still no response from the power button
Click to expand...
Click to collapse
Well no, if you did erase the emmc, then the stock Rom backups shared will not have enough data for you to fully restore from.
And it is not know what partitions can be shared between devices. For example. Secro has device specific data on it. Nvram , also.
So if you have multiple devices. Follow the wwr readback process and fully read back all the partitions from one that works. And flash it back to the bricked one.
rachelld said:
@diplomatic Have no idea what I did but at one point I did hit a Chinese screen and clicked clear Emmc now that you mention it... (At least that's what Google translate told me it meant....)
I am left with a device that won't turn on at all, sp flash tools claims that it flashed successfully but still no response from the power button
Click to expand...
Click to collapse
That's the factory mode, the clear eMMC option should just be another factory reset option.

OnePlus 8 Pro refuses to install TWRP. Qualcomm Crash Dumps every time. Any advice?

I want to install TWRP as my recovery I've tried at least four different versions that are listed here and a few others from other links:
https://forum.xda-developers.com/t/...p-for-oneplus-8-8-pro-unified-stable.4101313/
I'm not having driver issues anymore so I'm working with adb and fastboot fine. All commands are going through fine and I've tried flashing to recovery_a and recovery_b. Factory resetting doesn't resolve the issue. Every walkthrough I find I get to says flash then boot to TWRP but every time I flash it qualcomm dumps and every time I boot to it it qualcomm dumps.
Is there something corrupted in my recovery I need to wipe somehow? If so how do I wipe it because the only command I found online that would run was fastboot -w and that didn't fix the issue either.
Honestly really annoying at this. This is my 4th OnePlus phone and I've never had so many issues flashing it.
Edit:
I have also tried to do whatever steps are needed to go back to base stock and OS and it doesn't seem to work either. Any help would be appreciated.
Edit 2:
I did it. For anyone who finds this thread in the future the MSM tool did finally work. This is the video I used in the end
(I muted it.) and the first few starts it failed. I went into the properties of the MSM exe and under compatibility checked ran as admin. I also did install the qualcomm driver at some point way before this so not sure if that helped. The MSM tool still didn't work until I started it, turned my phone off, held both volume buttons (not the power) while plugging the phone in. All the stuff online I saw had people starting the program at this point but mine had started already and was in a "waiting for device" state when it worked.
What a lifesaver. Won't be messing around with this again until TWRP is available.
Because you are unable to flash phone's Stock ROM take phone to authorized service center and let them fix it.
Flash stock recovery. TWRP is but compatible with OOS11 for 8/Pro.
Edit: not
Lossyx said:
Flash stock recovery. TWRP is but compatible with OOS11 for 8/Pro.
Click to expand...
Click to collapse
I have had so much trouble figuring that out too. Do you have a good link for that? I can't find an easy way to do it. I've seen people recommend the msmdownloadtool but every time I use it it doesn't pick up my phone.
I've settled with Lineage OS and Gapps until I figure out more.
TheFloppyDisk said:
I have had so much trouble figuring that out too. Do you have a good link for that? I can't find an easy way to do it. I've seen people recommend the msmdownloadtool but every time I use it it doesn't pick up my phone.
I've settled with Lineage OS and Gapps until I figure out more.
Click to expand...
Click to collapse
Meant to say it's **not** compatible with Android 11 yet.
Lossyx said:
Meant to say it's **not** compatible with Android 11 yet.
Click to expand...
Click to collapse
Sorry if I wasn't clear either. I was wondering if you have a good resource for flashing the stock again. I haven't been able to myself.
TheFloppyDisk said:
Sorry if I wasn't clear either. I was wondering if you have a good resource for flashing the stock again. I haven't been able to myself.
Click to expand...
Click to collapse
The same way to flashed TWRP.
fastboot flash recovery recovery_a and _b.
In the future, you should not flash both slots, just flash without specifying _a or _b.
Recovery image can be obtained here;
Android Dumps / oneplus / oneplus8pro · GitLab
GitLab Enterprise Edition
dumps.tadiphone.dev
Although i am not sure which OOS version you use, so you might have to change branch
Lossyx said:
The same way to flashed TWRP.
fastboot flash recovery recovery_a and _b.
In the future, you should not flash both slots, just flash without specifying _a or _b.
Recovery image can be obtained here;
Android Dumps / oneplus / oneplus8pro · GitLab
GitLab Enterprise Edition
dumps.tadiphone.dev
Although i am not sure which OOS version you use, so you might have to change branch
Click to expand...
Click to collapse
I hate to be this much of a noob about it but I see a recovery file listed in the link you sent. Is that the recovery I flash? And if so after flashing is this branch also a stock rom? I've been trying for a while now just to get back to the basic oxygen that comes with the phone but it's been a nightmare for me and it feels like no resource I find fully explains it.
TheFloppyDisk said:
I hate to be this much of a noob about it but I see a recovery file listed in the link you sent. Is that the recovery I flash? And if so after flashing is this branch also a stock rom? I've been trying for a while now just to get back to the basic oxygen that comes with the phone but it's been a nightmare for me and it feels like no resource I find fully explains it.
Click to expand...
Click to collapse
If you want OOS back / new start, best way is really to use MSM. Haven't really used it, so can't help you much. There are tutorials online / YouTube though
Lossyx said:
If you want OOS back / new start, best way is really to use MSM. Haven't really used it, so can't help you much. There are tutorials online / YouTube though
Click to expand...
Click to collapse
Gotcha. Unfortunately I haven't been able to get MSM to recognize my phone yet but I guess I will keep working on it and see what I can do. Thanks for your help.
TheFloppyDisk said:
Gotcha. Unfortunately I haven't been able to get MSM to recognize my phone yet but I guess I will keep working on it and see what I can do. Thanks for your help.
Click to expand...
Click to collapse
It is very sensitive to which USB port you use. For some people only USB2.0 works, for me USB3 works fine as long as it's chipset USB3. The second ASMedia controller doesn't work.
Also, use original cable, and switch off the phone completely, get MSM to the point it's waiting for device so start the download before connecting phone, then while holding the volume keys connect the USB cable and it should instantly start flashing.

Onn 7" Model 100026191 TWRP Development

Alrighty... So I'm in the weeds here after going through three variants of the Samsung JPop (Which have bootloaders locked up like Fort Knox) and decided today to break down and dish out $59 for this bargain device. First thing I did upon getting it home was fastbooting it, and was able to unlock the bootloader with no issue. (So easy, a caveman could do it)
I've read just about every thread in here and though there seems to be TWRP support for quite a few models of the Onn tablets, I didn't see this one in here. Right now I have a throwaway laptop which is installing ubuntu for building TWRP for this device. Now, I have NEVER built TWRP. But I have plenty of free time, ambition, and am willing to learn. I have the basic guide to building TWRP open elsewhere. I will take whatever help I can get on doing this, big or small. Building a basic TWRP image should be easy enough, but the guides don't really go into device specific details (as expected), so this is where I could use some veteran help.
Device Specs:
Model: 100026191
Out-of-the-box Android Version: 11
Display: 7" 1024 x 600 Resolution
Processor: 2.0 GHz Quad-core CPU
RAM: 2GB
Cameras: 2MP front & back
USB: Type-C
Ubuntu just finished, and I am getting the build environment ready as we speak. Will keep this thread updated with progress and hickups that may occur along the way. Wish this noob some luck!!!!
Alrighty, so here's what I've been able to come up with as far as more detailed system information. Sorry for the late post, had trouble getting wifi working on ubuntu but got it going.
I suspected a MediaTek CPU and was eager to do a readback with SP Flash Tool, but as you can tell from the provided screenshots, it's actually a Cortex-A53 CPU. my goal here is to some how pull my stock recovery out of here. I thought about dd'ing it but someone in another thread advised against it. Does Onn have stock firmwares hidden away in the internet somewhere? Or is there another tool I can use to pull recovery?
Good evening guys and gals. New day, new opportunity. So i'm still stuck at pulling off boot and recovery from this tablet. I used
Code:
/adb shell cat /proc/mtd
to no avail. Permission denied just like with dd.
Today, I got the MTK droid tool and hooked the tablet to it and got these results. Still no scatter file, still no progress on pulling these partitions. (I apologize for my dumbness yesterday, this device is in fact MediaTek)
Alright. Eighty of you have clicked in this thread, zero of you show any motivation to do anything to contribute. You guys must hate this tablet because I went through this entire board, and each thread that even mentioned this model were left with no response. I just want the boot and recovery partitions off of the stock tablet. I am willing to do the rest. I said before, I'd take any help I could get but since this device is "so" insignificant, I'm not trying anything else on it.
I don't know if you guys dodge this device because it's Android 11, or what. But the least you veterans could do is either tell us it's not going to happen (given that you tried), or give us some other ideas we could try. Hell I'll paypal you enough for you to have the device in your hands in order to help. But that's where I stand. Moderator can lock this thread if he wishes. There's nothing else I can do for this device at the moment.
guess i'll return it to walmart
was hoping to root it easily with twrp
just gonna go grab the 8' if this is how it ended for the 7'
thanks for the help though!
I need a firmware for the 100026191
TWRPN00b said:
Alright. Eighty of you have clicked in this thread, zero of you show any motivation to do anything to contribute. You guys must hate this tablet because I went through this entire board, and each thread that even mentioned this model were left with no response. I just want the boot and recovery partitions off of the stock tablet. I am willing to do the rest. I said before, I'd take any help I could get but since this device is "so" insignificant, I'm not trying anything else on it.
I don't know if you guys dodge this device because it's Android 11, or what. But the least you veterans could do is either tell us it's not going to happen (given that you tried), or give us some other ideas we could try. Hell I'll paypal you enough for you to have the device in your hands in order to help. But that's where I stand. Moderator can lock this thread if he wishes. There's nothing else I can do for this device at the moment.
Click to expand...
Click to collapse
I have the boot and recovery images if you want them.
I unfortunately accidentally deleted the original boot image, but I have a magisk patched image still present.
I can walk you through the process of extracting the original if you would prefer that, it's quite simple, I just don't feel like buying a second Onn tablet at the moment.
Just note that if you want to extract the original boot image, do NOT flash the Magisk image, it will permanently erase the original boot image. There is another way, I can walk you through it.
PseudoDistant said:
I have the boot and recovery images if you want them.
I unfortunately accidentally deleted the original boot image, but I have a magisk patched image still present.
I can walk you through the process of extracting the original if you would prefer that, it's quite simple, I just don't feel like buying a second Onn tablet at the moment.
Click to expand...
Click to collapse
I oicked up one of the gen3 tablets. Do you think your way of pulling the boot image would work on it?
alarmdude9 said:
I oicked up one of the gen3 tablets. Do you think your way of pulling the boot image would work on it?
Click to expand...
Click to collapse
My way of pulling the images should work on any Android device that ships Android 8.0+, however if you got it brand new, don't update it.
Factory reset it if it downloaded an update, then disable OTA updates before enabling Wi-Fi.
You can run `adb logcat` while the update is downloading to find out where to download the OTA, and dump the boot partition from that.
From there, if you install Magisk, you can dump the recovery partition with `adb shell`.
PseudoDistant said:
Factory reset it if it downloaded an update, then disable OTA updates before enabling Wi-Fi.
You can run `adb logcat` while the update is downloading to find out where to download the OTA, and dump the boot partition from that.
From there, if you install Magisk, you can dump the recovery partition with `adb shell`.
Click to expand...
Click to collapse
Ok I will have to reset it then go from there. Do you have a guide on how to pull the image?
alarmdude9 said:
Ok I will have to reset it then go from there. Do you have a guide on how to pull the image?
Click to expand...
Click to collapse
When doing first time setup, don't connect to Wi-Fi.
Enable Developer Settings
Disable OTA Updates
Enable USB Debugging
Connect to Wi-Fi
Connect the device to your computer
Run `adb logcat > ota.txt`
Reenable OTA Updates
Go to Software Updates and start downloading the Android 12 update (If it's not the Android 12 update, disable OTA updates again after this one finishes installing, then try logcat again after rebooting)
Search for a link that looks like `https://android.googleapis.com/packages/ota-api/package/827ee737174e0e8f761bcaeb12738221a924c810.zip` in the logcat.
Put the update link in your browser, and download the zip file.
Extract the zip file
There's your boot.img, very conveniently.
The update link I have provided is for the 100074181, the 3rd gen Onn 7, if you happen to have that one then go ahead and just use my link.
Though update to Android 12 before actually using that boot.img with Magisk, it won't work with Android 11.
After you're done with that, and you're rooted.
`adb shell`
`su`
`dd if=/dev/block/by-name/recovery of=/storage/emulated/0/recovery.img`
Then connect your tablet to your PC and enable file transfer in USB settings, then just pull recovery.img out of your tablet and you have the recovery image.
PseudoDistant said:
When doing first time setup, don't connect to Wi-Fi.
Enable Developer Settings
Disable OTA Updates
Enable USB Debugging
Connect to Wi-Fi
Connect the device to your computer
Run `adb logcat > ota.txt`
Reenable OTA Updates
Go to Software Updates and start downloading the Android 12 update (If it's not the Android 12 update, disable OTA updates again after this one finishes installing, then try logcat again after rebooting)
Search for a link that looks like `https://android.googleapis.com/packages/ota-api/package/827ee737174e0e8f761bcaeb12738221a924c810.zip` in the logcat.
Put the update link in your browser, and download the zip file.
Extract the zip file
There's your boot.img, very conveniently.
The update link I have provided is for the 100074181, the 3rd gen Onn 7, if you happen to have that one then go ahead and just use my link.
Though update to Android 12 before actually using that boot.img with Magisk, it won't work with Android 11.
Click to expand...
Click to collapse
Awesome. Thank you so much I do appreciate it. Going to download the zip file because I have a 100071481. You sir are awesome!
alarmdude9 said:
Awesome. Thank you so much I do appreciate it. Going to download the zip file because I have a 100071481. You sir are awesome!
Click to expand...
Click to collapse
Update to Android 12 before using Magisk, just in case.
alarmdude9 said:
Awesome. Thank you so much I do appreciate it. Going to download the zip file because I have a 100071481. You sir are awesome!
Click to expand...
Click to collapse
Could you share the ota? This is the same model I'm using but its bricked rn
MoistSpoon said:
Could you share the ota? This is the same model I'm using but its bricked rn
Click to expand...
Click to collapse
I will look for it. Saved it to a USB drive and of course it decided to be stupid and it is repairing now. Slow going but as soon as it gets done I will look to see if it survived and if so I will get it uploaded.
MoistSpoon said:
Could you share the ota? This is the same model I'm using but its bricked rn
Click to expand...
Click to collapse
Sorry just noticed that the file that PseudoDistant posted is still good. I used this one....
https://forum.xda-developers.com/attachments/magisk_patched-25200_fvdeh-img.5794395/

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