yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy J4+ Guides, News, & Discussion] ashyx:
I was just going by the screen shot you posted. Like I said your commands are contradictory.

You have both arm and arm64 toolchains defined in the same script.

You also have an export statement for arm64 directly under a statement for an arm toolchain.

Not sure why you added both?

As far as I can see the architecture you're compiling for is arm, so you need an arm toolchain.
[Samsung Galaxy J4+ Guides, News, & Discussion] ashyx:
This is the script I use.

You will need to modify the path to your toolchain.
[Samsung Galaxy J4+ Guides, News, & Discussion] Creeperstonemmd5:
can i use the source code to build kernel for android 10 one ui if the source built for mm
[Shield Tablet Original Android Development] highwaystar_ru:
Here is TWRP 3.2.1 build for Project Tango K1 ATAP.

Download

gdrive: twrp-3.2.1-yellowstone.img

mailru: twrp-3.2.1-yellowstone.img

Sources

device tree: https://github.com/HighwayStar/android_device_google_yellowstone

kernel: https://github.com/HighwayStar/android_kernel_google_yellowstone

How to install

enable USB debugging in stock ROM and run command: adb reboot bootloader

Unlock bootloader using command: fastboot oem unlock (it will wipe all your user data!)

With unlocked bootloader boot into stock rom and enable USB debugging again. Reboot to bootloader: adb reboot bootloader

Flash recovery image: fastboot flash recovery twrp-3.2.1-yellowstone.img

To boot into recovery you could run adb reboot recovery after booting to stock ROM or use Vol+ Vol- Power combo to boot in bootloader menu and select Recovery using volume keys and confirm by pressing Power.

XDA:DevDB Information

[RECOVERY][TWRP] Project Tango K1 ATAP TWRP 3.2.1, Tool/Utility for the Nvidia Shield Tablet

Contributors

highwaystar_ru

Source Code: https://github.com/HighwayStar/android_kernel_google_yellowstone

Version Information

Status: Testing

Created 2019-02-19

Last Updated 2019-02-19
[Shield Tablet Original Android Development] shiznit1618:
Any ROMs available for yellowstone? I can see one in use on the LineageOS Statistics page (search 14.1-20190208-UNOFFICIAL-yellowstone)

But I can't find it on xda.
[Shield Tablet Original Android Development] xaxxelous:
I didn't get it to boot, but I was in a hurry and hopefully just forgot something simple. If anyone gets it working please post details. Hopefully this is legit:

Edit: link removed. Per the developer: "please don't use them. They're experimental, and won't be booting for some time... you run the chance of bricking. Definitely stay away until I make some form of announcement otherwise."
[Shield Tablet Original Android Development] shiznit1618:
[MENTION=7737930]highwaystar_ru[/MENTION] gave me this ROM that is working splendidly on my yellowstone: https://cloud.mail.ru/public/Hmco/XryszodXm

From [MENTION=7737930]highwaystar_ru[/MENTION]:
[Shield Tablet Original Android Development] xaxxelous:
Thanks! This is working very well so far for the limited testing I've done. I'll have to take it into the field and see how that goes .
[Shield Tablet Original Android Development] Bazathoth:
Tried out that ROM , it's pretty good outside of issues listed bluetooth is non functional.

Mobile data , text, wifi etc working.
[Shield Tablet Original Android Development] akw701:
Back to life

Thanks to highwaystar_ru I was able to install twrp and then lineage 14.1 with Open GApps pico.

I hope that somebody will be able to bring this to 15.1
[Shield Tablet Original Android Development] biggk:
Please keep up your effort, Hurray I can use my tango again , at least some of it, would be great that bluetooth and cameras working and good luck with the shield software i'll be looking for it . Thanks alot
[Shield Tablet Original Android Development] originaltomato:
thanks

worked for me. . with all the restrictions added.. but still brought a perfectly fine tablet from no usage to home automation dashboard device
[Shield Tablet Original Android Development] Ch053nU53rN4m3:
Great work thank you,

Also i tested that Rom in the thread and it works well despite the reversed sensor, bluetooth (and i report USB on dock non fuctional with rom)

has there been any progress on the Rom at all? thanks.
[Shield Tablet Original Android Development] ShapeShifter499:
Any progress with this rom?

Also [MENTION=416875]shiznit1618[/MENTION] and [MENTION=7737930]highwaystar_ru[/MENTION] where are you guys collaborating? If this is a telegram, discord, or other chat group. I'd love to get in and talk, maybe help a bit. I'm currently on arcore devs slack chat but there isn't much activity in their #yellowstone channel.

https://arcore.slack.com
[Shield Tablet Original Android Development] Bazathoth:
There does seem to be some active development on GitHub (within the last week) and I also found (from same developer on GitHub) a newer rom based on 15.1 although I couldn't get it to boot, seems I need to update TWRP, but trying to update TWRP it tells me the recovery partition exceeded size, so I assume I have to update boot as well (which I didn't do). i'd suggest checking on GitHub and contacting that developer.

https://github.com/TegraDevelopment/android_device_google_yellowstone
[Shield Tablet Original Android Development] ShapeShifter499:
Where did you find the 15.1 build?
[Shield Tablet Original Android Development] xaxxelous:
http://updater.ods.ninja/yellowstone

This is the same project I had mentioned in post #3. I took the link down because it wasnt ready at the time and I've been waiting for the dev to let us know when its working. See post #3 for a quote from him...

But... there is a build from Feb 12. Please let us know how it goes if you try it. :good:
[Shield Tablet Original Android Development] ShapeShifter499:
I have a new issue, my tablet is rebooting constantly. It will crash to a "red battery icon" and then boot back up to the lockscreen. I'm not sure if the battery in my unit is bad or if the battery calibration is messed up. Do you have any ideas what to do here?

My device was restored to stock btw.
[Shield Tablet Original Android Development] xaxxelous:
Will it stay on while plugged into the dock? Or usb even?
[Shield Tablet Original Android Development] ShapeShifter499:
I never got a hold of a original dock, I didn't check to see if keeping it on charge helped.
[Shield Tablet Original Android Development] xaxxelous:
Did you flash that build from Feb 12?

How did you return to stock? A TWRP backup or do you have original firmware?

Does it keep bootlooping by itself without any input from you or will it sit stable at the lockscreen? Can you keep it turned off?

Depending on the answers to those questions, the first thing I would do is turn it off and plug it in. Let it sit until fully charged. It takes a long time via USB, and even longer if it is on. Not that this is a solution, just troubleshooting...
[Shield Tablet Original Android Development] ShapeShifter499:
It reboots without me touching. The main OS has a full battery icon but the reboot flashes the red battery icon before booting. I flashed using NVFlash a copy of the stock OS I got from the arcore stack. Someone gave me their APX package that NVFlash requires.

That file is here: https://drive.google.com/file/d/1dv5ZPsczOAp6l9WOgVlbCTuBnbW71L8p

Conversation starts here: https://arcore.slack.com/archives/C68HHETL7/p1549401595001100

Main quote of interest from that chat:
[Shield Tablet Original Android Development] xaxxelous:
I can't see that convo without an account. Have you asked for help there?

Until I get home I can't really look at that apx. Maybe install TWRP and the ROM from post #4 or a TWRP backup? Without knowing what that apx flashed its hard to say. The ROM from highwaystar_ru (mostly) works. Might at least get you out of the bootloop.

And just to be clear, you did not flash that 15.1 build, right? What were you running before flashing the apx?

Unless TWRP and that LOS 14.1 ROM or a TWRP backup help we've gone off topic for this thread...
[Shield Tablet Original Android Development] ShapeShifter499:
I have not attempted to run a custom rom yet. I did boot twrp but I didn't install/flash it
[Shield Tablet Original Android Development] xaxxelous:
Ah, I see. Well from my point of view I cant confirm that apx works. Actually sounds like that apx is the cause of your issue.

I do know that TWRP and the ROM from highwaystar_ru do work unless you absolutely need bluetooth. So, again, my advice would be to install those. The ROM (14.1-20190208) is better than stock for the most part and you can always reflash that apx if you want. Follow the link and click the blue download button top center (its not in English). Probably best to do a TWRP backup of your current stock before flashing LOS even though its broken. If LOS fixes the issue you may be able to restore parts of the backup to return to stock.
[Shield Tablet Original Android Development] Bazathoth:
yeah its under the link posted , if you watch his downloads he's been posting nightly's I messaged him about it , installing ROM isn't straight forward flash through TWRP (I tried) and they are all unofficial builds (but they are looking at official status on lineage 16 *now)

so it's just a matter of waiting, but considering the amount of activity on it lately i'm hopeful we'll get an official release soon
[Shield Tablet Original Android Development] ShapeShifter499:
I was told from [MENTION=7737930]highwaystar_ru[/MENTION] that a modified tos.img and bootloader would be needed to boot any of his 15.1 builds. I asked about where to get those but I never got a reply yet.

I noticed some LineageOS activity for the Google Tango Tablet Yellowstone at https://review.lineageos.org/q/yellowstone I still don't know if any bootloader or tos.img modifications are required. I did email the email attached to the user who uploaded some of those git commits listed, but I'm waiting to hear back.
[Shield Tablet Original Android Development] Bazathoth:
Yeah I messaged [MENTION=5848265]npjohnson[/MENTION] here on XDA, he responded within a few hours, he simply said its a complicated install and he'd upload more when ready. (He is as of yesterday posting a 17.1 version)

I haven't tried any of the newer builds since my first attempt.

But if you hear back or try one of his builds ( https://download.ods.ninja/android/lineage/Yellowstone/ ) let us know how it goes.
[Shield Tablet Original Android Development] npjohnson:
Please STOP using these builds. They WILL NOT work without our APX package, it's not quite ready, but should be soon^TM.

Be patient, we're aiming for official support in the future (:
[Shield Tablet Original Android Development] ShapeShifter499:
[MENTION=5848265]npjohnson[/MENTION] Any updates on this? Also do you know anything about my issue below?

My device seems to have a ok battery but I think I messed up the calibration or something. It ends up boot looping. When you first turn it on it displays a red depleted battery icon twice before booting up properly. I haven't been able to fix it but it stays on if I Ieave it plugged in to a power source.
[Shield Tablet Original Android Development] xaxxelous:
I'm sure he'll post when there is an update worth posting.

Did you try using any possible solutions from before that use this TWRP and the working ROM? This thread is about TWRP for the Tango. TWRP didn't break your device. If you want to talk about fixing your broken device you should start a new thread on that subject.
[Shield Tablet Original Android Development] ShapeShifter499:
[MENTION=5848265]npjohnson[/MENTION] [MENTION=7737930]highwaystar_ru[/MENTION]

Just checking in with you two and anyone else following this thread. I'd like to know if there was any progress. I'd love to test anything even if it's a half working build.

I know tos.img was mentioned before. It seems to be in regards to the "trusted os" the Tegra chips use before booting further into a OS. From what I gathered with other devices like the Xiaomi Mi Pad which also has a Tegra K1 a tos modification might be required to get the CPU and other stuff working correctly with a newer kernel/android build. What I couldn't find so far was information on how one should modify the tos. If it can be compiled from a source code or if the original tos should be dumped from the device, decompiled and recompiled again. I would love some more insight on the tos image and how to modify it if possible.

I'll probably dig into this more even without any help. But help would be welcomed.
[Shield Tablet Original Android Development] npjohnson:
I'll try to get something together in the near future, no promises, my time is significantly limited
[Shield Tablet Original Android Development] ShapeShifter499:
No rush, I'm just glad this tablet hasn't been forgotten yet and someone is still working on it.
[Shield Tablet Original Android Development] ShapeShifter499:
I have finally installed this build onto my Tango tablet. I'm noticing issues in some apps like Youtube, videos will glitch and sometimes fail to play at all. Are there any workarounds or fixes for this?
[Shield Tablet Original Android Development] mprudic0404:
project tango

Have there been any updates for LINEAGE? i know this project is at the bottom of the barrel , and uncommon, just curious as if i can help with any part of getting a good rom, please let me know?

(ps: i have managed to find a few RARE old tango apps from 2015, if anyone needs them. i dont have it with me at the moment, but there is a app, that shows a live 3d image . Its not a great app, but it does show a purple/red image of the data (camera) real time, and can also see things our eyes can not.
[Shield Tablet Original Android Development] Bazathoth:
npjohnson has unofficial builds, I've even seen released as of 10 days ago a 17.1 for tango.....but no official releases and he won't give you instructions or installation (ROMs won't flash without reparations) so while there is nothing "new" it is being worked on. I know he's trying to get a official release so be patient
[Shield Tablet Original Android Development] st_87:
any progress on ROM (15, 16), or is there a camera fix for 14.1?
[Shield Tablet Original Android Development] st_87:
[MENTION=2022267]ShapeShifter499[/MENTION] have you managed found some workarounds of issues? mostly interested on camera fix
[Shield Tablet Original Android Development] thew-tab:
If anyone needs it, I can post or send a link to a TWRP back-up of the stock rom, I am about to make. Not sure if anyone else was having this issue, but after I unlocked bootloader, and set up the tablet again, the playstore wasn't working. I went into developer options, and I selected the runtime as dalvik, instead of the ART selected. After that, playstore works fine.-----I tried to get the TWRP installed from this thread but after trying to flash it thru fastboot, it said it failed because "target didn't report max-download-size. Then after it tried sending the recovery, it said " FAILED (command write failed (No error)). any suggestions would be greatly welcomed.
[Shield Tablet Original Android Development] thew-tab:
Figured it out, not sure what I did last time. And I made a TWRP backup of the stock room.
[Shield Tablet Original Android Development] st_87:
Hey, can you share or send a link to a TWRP back-up of the stock rom?

Thanks
[Shield Tablet Original Android Development] thew-tab:
https://drive.google.com/drive/folders/1fE4J5TT76Of23esuNYQnqyEGLWv8V_Uj?usp=sharing

let me know if this works, never sent a link on here before
[Shield Tablet Original Android Development] st_87:
Thanks, link is working, will try to make back up tomorrow.
[Shield Tablet Original Android Development] st_87:
Backup works :good:
[Shield Tablet Original Android Development] thew-tab:
good to hear
[Shield Tablet Original Android Development] ShapeShifter499:
[MENTION=5848265]npjohnson[/MENTION] Just checking in if there are any updates on this.
[Shield Tablet Original Android Development] npjohnson:
Firmware is ready for release - need to retool instructions, and am waiting on new charging images from our design guy - then I'll do a release thread.
[Shield Tablet Original Android Development] ShapeShifter499:
This is amazing news! Even if cameras don't work out. Would be amazing to see new software giving how powerful the chip is inside of the tablet.
[Shield Tablet Original Android Development] npjohnson:
https://xdaforums.com/shield-tablet...ageos-16-0-project-tango-tablet-atap-t4177581

There you go (:
[Shield Tablet Original Android Development] ShapeShifter499:
Can we still use the TWRP recovery from here along with the bootloader modification you posted?
[Shield Tablet Original Android Development] ShapeShifter499:
answered my own question, no it doesn't. Probably needs to be recompiled against the same kernel that the lineage16.0 build is. Or some other edit.
[Shield Tablet Original Android Development] akw701:
[MENTION=2022267]ShapeShifter499[/MENTION]: I installed the rom from highwaystar_ru, works fine. Now I try to install npjohnson's rom ttps://xdaforums.com/shi...-atap-t4177581 following the instructions to the point. But I am getting stuck with installing the superuser via towelroot . It says this telephone is not supported. How did you manage to obtain su. I read that towelroot works on the stockrombecauses it uses a fault in the code. How did you got around this obstacle?

In addition I am facing temporary problems with adb, where I get sometimes error: device '(null)' not found

If it works I get stuck here

PS D:\Andreas-Eigene-Dateien\Downloads\yellowstone_pie_psci\yellowstone_pie_psci> adb shell su -c dd if=/dev/block/platform/sdhci-tegra.3/by-name/PES of=/sdcard/persist.img

/system/bin/sh: su: not found

So I am looking for a different way to obtain su

Any help welcome
[Shield Tablet Original Android Development] akw701:
Link seems to be broken. My bookmark doesn't work either. Due to the site changes?
[Shield Tablet Original Android Development] npjohnson:
Yup, they're fixing it.
[Shield Tablet Original Android Development] akw701:
Is there anybody out there to tell me how to gain root access with this 14.1 Rom installed? Tried towelroot, but it does not work" ...not for this phone.."
[Shield Tablet Original Android Development] akw701:
Could you please explain how you made it work.
[Shield Tablet Original Android Development] mprudic0404:
highwaystar_ru & npjohnson - cheers to you and thank you for all your work on this device.

as much time as it took to get LINEAGE 16 to work and work correctly, i am curious , did you experience any of the TANGO (yellowstone) devices that were stock (not rooted, or tweaked) but different from each other ?

-i have seen 3 separate boot animations on these tablets, one spins the icon, another splits the icon into 40 little cubes and then re-combines them, and the most recent one , the tango icon splits off into fireworks then appears again just to repeat the firework action again.

-there are a few auction sites that sell these tablets for about 50 bucks PLUS a few dollars more for shipping, which to me seems like a great deal. is there any way to dig into the factory image to find changes the previous owners made? (stock - rooted 4.4) i ask this because using a FILE EXPLORER , every one of these devices i have,seems to have things left over from previous users .(short of a full IMAGE decompile)

(weird fact, but the battery in these is aged, but after a few tests on a CADEX, shows 95% life left or higher, of the ones i have picked up. This tells me these were used perhaps 30-40 times at most.) <two tablets i picked up and tested the battery actually gave a 99%battery rating, meaning these weren't used>

PS: PROJECT TANGO is a easy device to take apart, but it's not a speedy process ....
[Shield Tablet Original Android Development] mprudic0404:
did you try to go right into LINEAGE 16 from the ROM HIGHWAYSTAR_RU built , or did you restore the stock 4.4 first ?

( asking because i haven't had a chance to try this previous version of LINEAGE yet. )

no idea if this works, but try flashing the LINEAGE_SU, and then swapping to another SU / MAGISK / SUPER_SU/ etc.. type? (i would do a full ADB dump of the device before trying this, as i am not sure TWRP backups are the ENTIRE image.)
[Shield Tablet Original Android Development] akw701:
I had TWRP installed first. From there I followed the thread instructions. Worked like charm. With TWRP I installed the the 14.1 rom from highwaystar_ru. No problems so far. Then I saw npjohnsons Lineage 16 and wanted to Upgrade. But being a beginner I stumbled into several pitfalls with ADB (Tablett was in recovery, but it needs to be booted into the normal system) The towelroot Su from the instructions did not work. Thought I had to roll back to kitkat. Got the Rom from the link in the TWRP thread. But next pitfall, I installed it into micro sd card folder. Did work when I shifted everything to the internal memory Backup folder. Being back on kitkat I tried towelroot again to gain SU access. No success either. But I got lucky with "SupersSU v2.82 SR5 Beta" from droidfilehost.com page.

With SU applied, knowledge that for Adb commands the tablet had to be normally booted, I followed the instructions for Lineage OS and succeeded in installing the unofficial December, 16th version.

Power supply issue is the biggest problem. Charging is unreliable. Best chance in the dock. Sometimes it works, sometimes not. Unplugging and replugging sometimes lets the indicator jump to more than empty. But I have never seen a full indication (would expect a filled symbol (green?)) even with 98% battery level booted in recovery mode.

Any ideas?
[Shield Tablet Original Android Development] mprudic0404:
Power supply issue is the biggest problem. Charging is unreliable. Best chance in the dock. Sometimes it works, sometimes not. Unplugging and replugging sometimes lets the indicator jump to more than empty. But I have never seen a full indication (would expect a filled symbol (green?)) even with 98% battery level booted in recovery mode.

Any ideas?

[/QUOTE]

i have had similar issues with the dock charging. i noticed that the height of the connector in the dock is imperfect between others. (IE one dock connector sits 1.2mm higher than another) and i have also found that using switching power supplies vary in success.

my TANGO dock is connected to a 30amp DC supply with 2, old car audio (1.5f ) cap banks to clean up the ripple/noise. I also found 12.4 volts seems to be the sweet spot, (voltage @ power-supply -,, not 5.5mm connector- assuming typical losses over length of wire and points of contact ) (lets hope there is never a fault/short inside the tablet or dock , as those caps offer a world of instant current if needed, lol )

a few random switching supplies i tried, ( laptop, camera, etc..) had so much noise (terrible regulated DC) that it wouldn't charge at all. (most name brands were fine)

the dock - check the female barrel connector, as i had one which, required an xacto knife to re-bend the outer contact. (guessing previous owner yanked the connector out at a horrible angle)

- i think all the documentation tells of a 12V @ 3amp supply is needed, but the most i have ever seen was a hair over 2 AMPS . i suppose they account for extra power if you plug in a device to the USB3.0 port ? (the 12v DC @ 2 AMPS i saw , was only witnessed when first turning on a nearly dead tango on 4.4)

(if your in a pinch, a MILWAUKEE M12 USB adaptor works very well - its the same adapter used in there HEATED GEAR.. just need a 5.5mm barrel cable male-male .== MILWAUKEE HEATED GEAR uses a 5.5mm barrel plug)

depending on opportunity and free time, i may install a QCS spoofer board with-USB-C and 2S-battery charger board inside the tablet, with direct connection to battery, which would be easy because there is plenty of room inside the rear case .

The QCS spoof board is (trigger board) is tiny, and a 2cell lithium charger is as well (about the size and thickness of a nickle coin)

but before all this,

i want to see what changed inbetween the two builds, and if its possible to restore the charging to the dec-16 build, from the first one.(i havent had an opertunity to compare the two builds side by side, but i will, just need to have a day off work first. )