yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] notnoelchannel:
https://xdaforums.com/t/alcatel-1b-stock-rom-twrp-sim-unlock-etc.4465417

"UNLOCKING BOOTLOADER / ROOTING

For now, it is not possible... However mentions of secret key is spread all around the phone partitions (mainly abl file)

So if you have any experience editing bootloaders you can unlock...."
[Samsung Galaxy A30s Questions & Answers] maxdamage:
Have a 128GB Samsung Galaxy A30s with v11 installed and would like to access the Internal Storage ---> Android(folder) ---> Data sub-folder contents but they are hidden but I need to back-up my savegames from games I play like Fallout Shelter. I used to that with my Samsung Galaxy A3 2017 which I miss because of the ability to access that folder anytime and with any app if needed.

Is there a way to unhide them and show the folders in real time so I can modify,delete,archive when needed as I don't want to root the phone at all. I have un-hide\show hidden files option enabled and that still doesn't work.

I saw even the newer Samsung phones also hide the folders but I was testing an Oppo phone recently and I could use the default file browser app installed on the phone to access the data sub folder and clicking on a button in the middle of the screen which said it needs Google Files, it then displayed all the folders in the data sub folder and I could copy,delete,move them around.

Would that app work on a Samsung Galaxy A30s?

Thanks

Richard.
[Walmart Onn Tablets General] martyfender:
I work in the electronic department of a Walmart. The new tablets have rolled out in my store, at least. I am not working today so I don't have the specks, but, at least for the 8", the price is lower.
[Walmart Onn Tablets General] Renate:
This apparently comes in 4 colors, gray, yellow, purple, blue. $79

This is "charcoal", i.e. gray: https://www.walmart.com/ip/onn-8-Tablet-32GB-2022-Model-Charcoal/530143567

I've had the original Onn 8 (not the Pro) on my dash for a while.

I think the speed is an improvement over my old Nexus 7 (2013).

Still, the GPS leaves something to be desired in that it's so inaccurate and there is (apparently) no magnetometer.

If you're stopped at a light Google Maps will go wacky telling you to pull a U-turn or take a right or take a left.

Still, I think I'll pick one of the new ones up for the dash (gray) and maybe another for news site browsing (yellow).

Edit: I checked a dozen stores and nothing, so I just added it to cart and went to checkout, "Out of Stock".
[Walmart Onn Tablets General] Renate:
On walmart.com the yellow and the blue are apparently shipping now. The gray and the purple remain out of stock.
[Walmart Onn Tablets General] smoothxda:
I got one of the new 7 inch tablets and it's pretty slick for a 50-dollar tablet. Nothing fancy removed the walmart bloat via ADB and it gets the job done.
[Walmart Onn Tablets General] Renate:
(2022) 7" ($59): https://www.walmart.com/ip/onn-7-Tablet-32GB-2022-Model-Charcoal/169995658

(2022) 8" ($79): https://www.walmart.com/ip/onn-8-Tablet-32GB-2022-Model-Charcoal/530143567

(2022) 10" ($109): https://www.walmart.com/ip/onn-10-1-Tablet-32GB-2022-Model-Charcoal/126787849

Are you sure that you got the new (2022) 7" model? The new one is $59. The 2021 model is still selling for $50.

The most critical is getting rid of the Walmart icon on the navigation bar:

adb shell settings put secure sysui_nav_bar 'space[1.5WC],back;home;recent,space[1.5WC]'

Play with the 1.5 number if you don't like the spacing.
[Walmart Onn Tablets General] smoothxda:
Yes, I assure you it is the latest version.
[Walmart Onn Tablets General] Renate:
What color? So it's Android 11?
[Walmart Onn Tablets General] smoothxda:
It is the utility blue one and it's Android 11 Go. It also has 32GB of storage as well.
[Walmart Onn Tablets General] Renate:
Ok. My bad.

I just don't know why they would mark down a new model (with limited availability) to $50 (MSRP $59) when they have stacks of the old "Gen 2" 7" for $49 in stock.
[Walmart Onn Tablets General] martyfender:
Many stores may not have them yet. They may have them, but if I recall, the actual mod reset for them is in the future, therefore many stores have not put them on the sales floor, yet.
[Walmart Onn Tablets General] martyfender:
I thought that was odd, myself. I did notice many older models we have out are priced higher than the new ones.

Personally, I have stayed with my 2, 1st gen tablets, because they were easily rooted and have TWRP ported to them, thanks to @diplomatic .
[Walmart Onn Tablets General] CriticalComposer:
Is it just me or is Gen 3 lineup not always an upgrade? The 7 gets a bump in storage and battery life but the 8's resolution is lower and only has a quad-core CPU rather than an octa-core. I can't find specs on the 10 at all but one of the reviews (that reads like they copy-pasted PR from Onn) says it only has 2GB of RAM.

Edit: Seems I'm comparing the 2022 models to the older Pro models for the 8 and 10. Guess I'll wait for Pro models to roll out.
[Walmart Onn Tablets General] Renate:
Do you think that there is a Gen 3 Pro line coming out (soon-ish)?

It's crazy already that Walmart has to differentiate 2021 and 2022.

What lies in the future? Onn 8 (2nd half of Thursday edition).
[Walmart Onn Tablets General] HackVasant:
Maybe you could inform your superiors that Walmart has been violating the GPL license by not providing kernel sources to their tablets -:(. You will be doing this hacker community a favor and also helping Walmart be in compliance with the law.
[Walmart Onn Tablets General] martyfender:
Sorry, but this will never happen. I have had these cheap Androids tablets since Android 5.0, (Nextbook) and they will never do this. I believe this does not apply to China. They won't do that.

By the way, these new generation 3 device should be now available in Walmart stores.
[Walmart Onn Tablets General] Renate:
It seems that these are being rolled out. I've noticed a few stores with pickup available on the black and purple.

I'll try to pick one up this morning and do a teardown.
[Walmart Onn Tablets General] Renate:
So, here it is. I haven't even powered it up yet. Shown with the main "tin can" removed.

Interesting to note, the test points are labelled well, there is a reset TP.

The 20 pin at the bottom is the USB Type C and the speaker.

The 30 pin is the IPS LCD.

You can see from the USB test points at the bottom (DP, DM) that this is USB 2.0

Interesting, at the top there is an unpopulated micro USB 2.0 connector. (Is that a separate interface?)

Lots of test points, maybe UART on that 6 pin or JTAG?

Edit: Interesting. I plug it in and it shows for a few seconds 0e8d/2000 Media Tek PreLoader

Yes, but the one you want is 0e8d/0003 which is the actual boot ROM

Ah, ok, there are 4 buttons, VolUp, VolDn, Power, Reset. 3 buttons and a hole for Reset.

Android "Go Edition" Android 11

Build number x 7 for Developer mode, System > Advanced > Developer > OEM unlock, ADB enable

There is accelerometer/auto-rotate but no compass. Compass is good to keep Google Maps from spinning when you're stopped.

It uses a super (dynamic) partition and has FRP.

ITEMS -> /dev/block/mmcblk0p7
boot -> /dev/block/mmcblk0p15
boot_para -> /dev/block/mmcblk0p2
cache -> /dev/block/mmcblk0p33
cam_vpu1 -> /dev/block/mmcblk0p3
cam_vpu2 -> /dev/block/mmcblk0p4
cam_vpu3 -> /dev/block/mmcblk0p5
dkb -> /dev/block/mmcblk0p25
dtbo -> /dev/block/mmcblk0p19
expdb -> /dev/block/mmcblk0p20
frp -> /dev/block/mmcblk0p21
kb -> /dev/block/mmcblk0p24
lk -> /dev/block/mmcblk0p13
lk2 -> /dev/block/mmcblk0p14
logo -> /dev/block/mmcblk0p18
md_udc -> /dev/block/mmcblk0p31
metadata -> /dev/block/mmcblk0p26
mmcblk0 -> /dev/block/mmcblk0
mmcblk0boot0 -> /dev/block/mmcblk0boot0
mmcblk0boot1 -> /dev/block/mmcblk0boot1
mmcblk0rpmb -> /dev/block/mmcblk0rpmb
nvcfg -> /dev/block/mmcblk0p11
nvdata -> /dev/block/mmcblk0p27
nvram -> /dev/block/mmcblk0p6
para -> /dev/block/mmcblk0p17
persist -> /dev/block/mmcblk0p10
proinfo -> /dev/block/mmcblk0p1
protect1 -> /dev/block/mmcblk0p8
protect2 -> /dev/block/mmcblk0p9
recovery -> /dev/block/mmcblk0p16
seccfg -> /dev/block/mmcblk0p12
super -> /dev/block/mmcblk0p32
tee1 -> /dev/block/mmcblk0p22
tee2 -> /dev/block/mmcblk0p23
userdata -> /dev/block/mmcblk0p34
vbmeta -> /dev/block/mmcblk0p28
vbmeta_system -> /dev/block/mmcblk0p29
vbmeta_vendor -> /dev/block/mmcblk0p30
[Walmart Onn Tablets General] Renate:
So the top, non-existent USB connector seems to be in parallel with the bottom connector, although it seems that parts haven't been populated so that the two data lines don't go through.

There's a stupid (depending on your taste) "Entertainment space" which is a multicolor tab that is always present on your homepage.

Yes, you can disable "Entertainment space" and the tab turns white, but you can't get rid of it.

Like the Google search bar (that you can't get rid of) this seems to be part of the Launcher.

I just set my minimalistic "Lunch" app as the Home app.

Edit: The model is 100071483

The 8" Gen 1 was MT8163, Gen 2 & 3 are MT8168

Maybe the only thing different is colors?
[Walmart Onn Tablets General] Renate:
I've been having fun with this.

I used bkerler's MTKClient to pull the boot image. https://github.com/bkerler/mtkclient

It's easier to do this in Linux, I used a spare Raspberry Pi.

Save your data plan (if you have one), don't use the GUI version and don't just "pip install -r requirements.txt".

Use requirements.txt as a guide and just pip install them when the program complains.

If you wanted you could let Magisk take over from there.

I've pulled the kallsyms out of the kernel and made a few mods to the code.

I put in an "empty" vbmeta too.

100071483:/ # getenforce
Permissive
[Walmart Onn Tablets General] Renate:
The boot image is signed but relies on the vbmeta partiton which can be overwritten with an empty vbmeta (not erased).

I modded a boot image and it worked fine.

The recovery image is also signed and the AVB0 signature is used.

I modded a recovery image and it didn't work.

I have to figure out how to use avbtool.

If I get around to it I will make a "lean and mean" native Windows MTK client that will do reading/writing of partitions without needing UsbDK or external payloads.

I have never seen a device that picks up grease and dust like this screen.

You definitely need a microfiber cloth to wipe down the screen all the time.
[Walmart Onn Tablets General] Renate:
I had my Onn8 Gen1 as navigation tablet.

I had always just glued a microphone adapter to the case of the Onn8.

I got tired of waiting for the glue to set and how brittle it was and that it fell off easily.

This time I pop-rivetted an Atlas Sound AD-11BE microphone flange to the back.

The flange normally takes an 8-32 screw but a 5/32" pop-rivet works perfectly.

5/32" is a bit rarer than 1/8" or 3/16".

Yes, the rivets are far too long but I didn't have a great selection.

First of all, there is nothing as flush as a rivet (unless you countersink a flathead and I don't like that on really thin materials anyway).

With the battery out there is plenty of room. I have the mount as high as it can go without being over the motherboard.

That means the center of the mount is 3" from the top.

I brought out the USB connector, speaker and WiFi antenna.

I don't like the USB out the bottom, it's too likely to get hit by my knee.

Sadly learned lesson: Be careful mating the case after opening that you mate the button side first or else you'll rip the cheesy membrane switches.

The power button still works but volume up is dead. No problem, I usually use the SWC controls anyway.
[Walmart Onn Tablets General] Renate:
I can't speak to the difference between Onn8 Gen2 vs Gen3, but upgrading from Gen1 to Gen3 is a big jump.

I use this as a navigation tablet using Bluetooth steering wheel controls.

With the Gen1 you push a button to swap apps and it goes, "lemme see, ah, ok".

With the Gen3 it's literally like a video switcher the screen is instantly replaced with the other app.

Turning off animation is important, but I had it off before too.

Sort of unrelated: I use Firefox as a browser (some systems are on a local server).

The old "fennec" Firefox supported intents where you could go to a URL on a specific tab.

This was very helpful when switching back and forth to prevent having 100 tabs.

The last I checked, the next generation "fenix" Firefox did not support Intents with specific tabs.

Intent intent = new Intent();
intent.setPackage("org.mozilla.firefox");
intent.setAction(Intent.ACTION_VIEW);
intent.setData(Uri.parse(link));
intent.putExtra(Browser.EXTRA_APPLICATION_ID, "MyTab");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(intent);

Three years and counting: https://github.com/mozilla-mobile/fenix/issues/4106

Edit: Maybe I should make this another thread.

The intent to reuse the same tab works fine, but it was still showing animation when I switched to Firefox,

The thing is, (Fennec) Firefox has two main Activities:

The first, "LauncherActivity" has a few intent-filters so it is what gets activated by an intent.

The second, "BrowserApp" has no intent-filters and is only internally activated by the first.

So, in normal usage LauncherActivity looks at the intent and URL and if it's normal it dispatches it to BrowserApp and finishes.

Apparently it's the Activity finishing that causes this animation.

So I took all the intent-filters off the first Activity and transferred them to the second Activity.

Now it works without animation.

Undoubtedly the LauncherActivity does something but I don't need whatever feature it does.
[Walmart Onn Tablets General] Renate:
An update on my problem with the volume up button which I killed.

The actual little metal dome that does the clicky part of the volume up button has gone to Nowhere Land.

There is the reset button (the 4th button) that I don't really need.

I picked off the little metal dome, stuck it to a piece of electrical tape, trimmed it down and stuck it where the volume up was.

It works great, same protrusion, same clicky feel.

If I need reset, there is a hole there which is centered over the center contact. I could ground that with a pin.
[Walmart Onn Tablets General] Renate:
Not a lot of action here. Oh, well.

The Onn8 Gen2 has the speaker port out the back, the Gen3 has the speaker out the bottom edge.

The speaker and the GPS antenna are one and the speaker is fed off the little USB board.

That kind of makes things messy. Eventually I'll get a GPS ceramic patch antenna with a uFL connector.

I want to mount a 2" speaker (scavenged from a cheap portable Bluetooth speaker) on my dashboard so it points directly at me.

I didn't want to pick off the connection off the little USB board. There are test points on the mother board.

They are teensy-tiny, so I took my little speaker cord, spliced it to some 30 AWG solid wire to make the connection.

I'll put a human-sized two pin connector outside the case to connect to the dashboard speaker.

Edit: It's verified, the speaker gets a proper mono mix.
[Walmart Onn Tablets General] Renate:
I bought this cheesy Bluetooth speaker to gut for the speaker inside. Mini speaker

I figured if the case itself is 3" then maybe the actual speaker is close to 2" (the size of the hole in my dashboard).

It's actually 1.5" diameter. It's loud enough if you were in a quiet place, but not loud enough with the engine going.

I'll have to find a bigger speaker.

Edit: I bought a Family Dollar "Glo" Bluetooth speaker for $5.

It's truly a "gutless wonder", but at least the speaker is 2" diameter.

The hole in my dashboard is that size so I just hot glued it in.
[Walmart Onn Tablets General] Renate:
So my next project was integrating external GPS.

So I wrote the Service and it runs fine. There is some strangeness with it not starting on BOOT_COMPLETED. I'll look into that.

It's kind of convenient though. If you've every used Google Maps (or any other location thing) you'll have noticed if you switch away from maps or switch off the device it takes a bit of time to get a fresh fix when you switch back/turn it back on. With external GPS coming in it has a fix immediately.

And I can get rid of the little GPS antenna on the tablet.

Oh, I rooted it with Magisk. It seemed the easiest way to set ro.allow.mock.location to 1

You also have to select your app in Developer Options for Mock Location.

FWIW: I've not had luck with fastboot boot whatever.img

It works fine with fastboot flash boot whatever.img, then fastboot reset
[Walmart Onn Tablets General] Renate:
If you do a "battery-ectomy" you'll need to convince your device that it's not running out of charge.

I've found that the easiest way is to run this command. (The middle line is just one-time prep.)

$ su
# echo -n 1 > /data/local/tmp/one
# cp /data/local/tmp/one /sys/devices/platform/battery/FG_daemon_disable

This disables the interrupts on the "fuel gauge" (FG) which is part of the "power management IC" (PMIC).

You can put that last line in a Magisk module in service.sh

One small change is that the screen does not go on automatically when you plug/unplug the USB cable.
[Walmart Onn Tablets General] tonismo:
Does

Can you share the modified boot img and vbmeta img for the 100071483? I am having trouble trying to pull boot img
[Walmart Onn Tablets General] Renate:
Oh. I had to get around to snarfing a copy off my device...

This is magisk'ed for 100071483

You don't need vbmeta. If you want you can throw in an empty vbmeta.
[Walmart Onn Tablets General] tonismo:
Thank you so much!I flashed it and now the tablet turns off after showing the boot logo. Is there any ways to fix this?
[Walmart Onn Tablets General] tonismo:
Well I was able to reboot into fastboot flash it again but no luck. Do you happen to have TWRP for this tablet too?
[Walmart Onn Tablets General] Renate:
Sorry, I hadn't remembered that this did use vbmeta.

I hope that you can get to fastboot?

C:\>fastboot erase vbmeta
C:\>fastboot flash vbmeta vbmeta_empty.img
[Walmart Onn Tablets General] tonismo:
Everything works!Thank You old great one!
[Walmart Onn Tablets General] tonismo:
Everything boots up fine but now the Wifi wont turn on lol
[Walmart Onn Tablets General] Renate:
Hmm, could be a version mismatch between kernel and system?

$ getprop|grep finger
onn/100071483/100071483:11/RP1A.200720.011/1645855200:user/release-keys

I've had a problem with mine. There's an 84.31MB "security update". I can download it but it gets a "verification error" and doesn't proceed. Then it complains that it still has an update.

The verification error happens when I press "Restart now" after the download. I must have downloaded that 84.31 MB a dozen times (in the past and today).

I reinstalled the stock boot and tried to update but it does the same thing. I reinstalled the stock vbmeta and tried to update but it does the same thing.
[Walmart Onn Tablets General] tonismo:
mine shows 11/RP1A.200720.011/1656423915:user

Do you think you can capture the OTA update and manually update it through recovery?
[Walmart Onn Tablets General] tonismo:
I did a log check when turning the wifi on. It shows "Failed to load wifi driver".
[Walmart Onn Tablets General] Renate:
Ok. I guess I'll have to back up some things, do a factory reset, do an update, get the new boot and magisk it.
[Walmart Onn Tablets General] tonismo:
Can you share the stock boot img when you get it?
[Walmart Onn Tablets General] Renate:
I restored to stock, hit factory refresh in recovery, it started clean.

I entered WiFi details, then it wanted to install the same damn 84.31 MB.

It loaded it and failed, then rebooted, loaded it and failed...

Ok, it checks the boot image before updating. I finally got:

onn/100071483/100071483:11/RP1A.200720.011/1656423915:user/release-keys

Now I'm going to catch the stock boot. You can magisk that yourself. You'll need the original if updates come through.
[Walmart Onn Tablets General] tonismo:
Ooo nice! Do you have the magisk boot.img for this update?
[Walmart Onn Tablets General] Renate:
Nope. That's your job. You'll need the original boot.img for updates anyway. These are stock.

Danger! These are Android 11. Don't use if you are already on Android 12.
[Walmart Onn Tablets General] tonismo:
Thank You! I didnt have the stock copy of the boot.img lol. I magisk it and now everything works!If you like, you can pm me your paypal.me address and I will buy you a cup of coffee
[Walmart Onn Tablets General] Renate:
Thank you. It's kind of late in the day and since I've been fighting with MTK Client all day I'm on an adult beverage right now!
[Walmart Onn Tablets General] tonismo:
Do you think there will be any issues with flashing TWRP on this device?
[Walmart Onn Tablets General] tonismo:
Do you need to use avbtool to port TWRP for this device?
[Walmart Onn Tablets General] Renate:
I've used TWRP in the past, but I'm not a big fan of it.

Nah, there's nothing wrong with it but I don't need all that menu stuff.

All I need is a recovery with rooted ADB.

I find it easier to modify stock recovery for that than to build a TWRP.

I've defeated verification sometimes with modifications to DTB.

I've defeated verification sometimes with modifications to fstab.

I've defeated FEC (error correction on ro partitions) by erasing the last 4k.

I can lop off the AVB signature and footer on images.

I have rehashed (but not resigned) Firehose loaders.

I haven't dived into the problem with recovery and AVB on the Onn8 Gen3.
[Walmart Onn Tablets General] martyfender:
I'm still on two first gen Onn 8's but I had a similar issue with ota's after unlocking the bootloaders and rooting with Magisk. It has been several years but to this day still get the message from time to time that there is an update from back then still available. I have to ignore it because I never found a way to get it to work and if it ain't broke, don't fix it, as they say. However, I you find a way to fix that, Look forward to learning how you do it. I only occasionally check this thread. I for some time have thought about getting one of these third gens. just to play with it, but why, when I have two, still great, 1st gen. Onn 8's. In addition, I am not nearly as savoy at doing all of the things you do to root it. The 1st gens had an mtk exploit that made it relatively to root it to initially gain root so you could install Magisk. In addition, diplomatic ported TWRP to it and that has many times saved my bacon since one of my hobbies is testing development and early CA builds of Magisk. Finally, can the full roms be pulled and reflash with SP flash tool, like the 1st gens can be, or do you use something entirely different. In addition, do you pull the rom with dd or by some other means?

Thanks
[Walmart Onn Tablets General] Renate:
I used bkerler's Python MTK client to pull the boot image. I was working on a native Windows version but I didn't finish it and never got back to it.

I did get the security OTA finally installed. I put the original boot image back in, installed the update, then Magisk-ed it again.

As I said, for me, using it as a car navigation tablet with Bluetooth steering wheel controls, the critical benchmark for me is how fast it switches between apps when I push a button. The Gen 3 blew away the Gen 1 that I was using.

I am using GPS over UDP over WiFi. It works fine except for Google occassionally pestering me to turn Google's WiFi location on.

For my steering wheel controls of brightness/volume I have a little key injector daemon. I was fighting with SE Linux, but I went off to other things. Whenever it reboots I just adb in, setenforce 0, access the injector, setenforce 1. It works until the next reboot. I'm still working on that one.

Oh, if I haven't mentioned it:

cp /data/local/tmp/one /sys/devices/platform/battery/FG_daemon_disable

Where "one" is the character "1" makes your battery always at 50%.

This is the only way I've seen to keep things working with a wired supply instead of a battery.