yashsingh1/xdaforums huggingface dataset:
[Nexus 9 Android Development] oias.heeda:
Installed Oreo.

Correct bootloader and vendor.

No matter what I do, or which version of gapps I try. Nothing happens. It either freezes or bootloops.

Can anybody suggest anything or help at all?
[Nexus 9 Android Development] dictionary:
Flash ROM and gapps, reboot recovery, flash kernel, reboot. Win. It's either that, or flash ROM and kernel, then reboot recovery, and flash gapps. Can't recall which, but you need to flash USB Oreo kernel
[Nexus 9 Android Development] oias.heeda:
Ok. Will try that this afternoon.
[Nexus 9 Android Development] oias.heeda:
Tried this. Got it to boot.

However all my google apps except Chrome are force closing as soon as opening.

Is it something I have done?
[Nexus 9 Android Development] USBhost:
Hint: the latest on the kernel thread :cool:

Logcat?
[Nexus 9 Android Development] lcrponte:
[MENTION=2825574]oias.heeda[/MENTION] Nice way to clutter a thread. You can use pastebin for that...
[Nexus 9 Android Development] dictionary:
Did you do a full wipe? Not sure why else you'd get so much trouble.
[Nexus 9 Android Development] oias.heeda:
I got it working smoothly. So far so good.

Yeah I did do a full wipe initially, however it seems to matter when you flash gapps and the kernel.

For me this worked.

Flash ROM

Flash kernel

Reboot recovery

Flash gapps

Reboot system.
[Nexus 9 Android Development] clervinmayo:
Can someone guide me how to correctly install the 32 bit version? What is the vendor version needed? I was getting something like "system issue contact your manufacturer" (I forgot the exact error).

Thanks.
[Nexus 9 Android Development] dictionary:
If that's your only problem, and it boots then don't worry about it
[Nexus 9 Android Development] Super-Veloce:
What are the bugs, on latest build? I want to try Oreo :) still problem with hardware acceleration / watching video's (youtube)?
[Nexus 9 Android Development] dictionary:
Same issues still.
[Nexus 9 Android Development] iason747:
Apparently Google will launch a "go" version of Android 8.1, for entry level phones with as low as 512 MB ram. [MENTION=5501864]USBhost[/MENTION] what do you think about that, could it help our Nexus 9
[Nexus 9 Android Development] Monazite:
I heard that Android 8.1 have optimization for 2GB RAM devices. We may needn't Android Go.
[Nexus 9 Android Development] Vartom:
I think that just Android Go will be useful to us.
[Nexus 9 Android Development] iason747:
My opinion as well. Google often said before major Android updates that they improved performance on low end devices, but I could never notice any improvement. I have big hopes for 'go'.
[Nexus 9 Android Development] USBhost:
To be honest I don't think it will do much if anything. ARM builds are currently the best when it comes to free ram. If anyone remembers when KitKat, MarshMallow came out? google said the same thing about optimizing for 512mb ram and .... Yeah.

But who knows I may be wrong and we will probably still have that HW problem.
[Nexus 9 Android Development] dictionary:
No rush, but any status updates on the new Marshmallow kernel? Still rocking RemixOS, and would love your new improvements.

Speaking in regards to go, meh. I know it'll be great for the devices it supports, but not sure how the n9 will factor into that, if at all.
[Nexus 9 Android Development] USBhost:
:silly: ... You know I completely forgot.... Yeah Yeah.... Blame my school and my parents lol now I know what I'll be doing in the morning :good:
[Nexus 9 Android Development] dictionary:
Lol. Sorry about that!! No rush, was just curious if you'd hit a snag
[Nexus 9 Android Development] USBhost:
So I just went to check on Google's manifest and I found out 7.1.2_r36 came out... Expect an update
[Nexus 9 Android Development] USBhost:
Looks like i cant build it...... :eek:....

Oh well I will be moving on to unlegacy :cowboy: see you all in the near future :good:
[Nexus 9 Android Development] albsat:
[MENTION=5501864]USBhost[/MENTION]

I don't know, but I have found 3 times my tablet like switched off. It seemed to me like not coming out of the lock screen sleep .

I had to keep the power button to restart it. This has happened during this week of usage. Any idea?
[Nexus 9 Android Development] Choochter:
Everything working fine apart from Chrome, which renders some sites like they appear on a phone (see below). Tried Chrome beta, same thing. Looked through chrome://flags, nothing obvious there. Anyone else seeing this?

Edit: found the solution! Anybody else with the problem, try this:

http://nexus5.wonderhowto.com/how-to/permanently-browse-desktop-mode-android-0159709/

It's a bit of a bodge but it works. [MENTION=5501864]USBhost[/MENTION] Any chance of a permanent fix?
[Nexus 9 Android Development] USBhost:
I used to get that a lot on stock built kernel.

You can get it back up after pressing the power button a few times...

Is this with the stock kernel?

That's normal. not a ROM problem.
[Nexus 9 Android Development] Choochter:
Normal for Chrome? Never seen it before, it always switched to desktop or mobile view automatically.
[Nexus 9 Android Development] USBhost:
Yeah... For chrome...

Well it's fine for me I noticed nothing different.
[Nexus 9 Android Development] Choochter:
For me, it now looks like below, as it always used to, as opposed to the shot I took above. Never mind, the ROM's great - keep up the good work.
[Nexus 9 Android Development] albsat:
[MENTION=5501864]USBhost[/MENTION]. Good to hear that. Actually I was using your kernel. Not a big deal.
[Nexus 9 Android Development] hoof hearted:
I use chrome desktop mode all the time as mobile sites look hideous and are unusable to me on a tablet. Found this XDA link a few years ago and has a zip I keep for every install. Essentially the same thing you posted above.

http://xdaforums.com/showthread.php?t=1811101

One thing that helps with websites complaining if you are using an out of date version of chrome is to update that command line with the version of chrome you are using. :highfive:
[Nexus 9 Android Development] Choochter:
Yeah, I spotted the error message and figured that was the solution. Still curious as to why Chrome is behaving like this now when it was never a problem on stock or Pure Nexus
[Nexus 9 Android Development] astralbee:
Fantastic ROM! Fastest I've ever seen this tablet.
[Nexus 9 Android Development] b8842dc0:
I'm guessing that it is OP's ROM. I'm not using this ROM, but I'm doing something similar, running the latest 7.0 AOSP, that I've compiled myself. I'm using the same two patches that the OP is using. However, I'm also modifying /system/core/rootdir/init.rc before compiling. If you were compiling yourself, in the section: "service flash_recovery /system/bin/install-recovery.sh", you would need to add "disabled" after the line "oneshot".
[Nexus 9 Android Development] fipm:
This is a great rom! I hope you will consider adding a couple of simple features like extended power menu and volume button swap.

I have a LTE model and the camera works with your hacked vendor linked in another thread.
[Nexus 9 Android Development] RyanEJ25:
Do you have a link to that?For the life of me have neverI been able to extract the vendor imge for my N9.
[Nexus 9 Android Development] albsat:
Here

http://xdaforums.com/showthread.php?p=69482625

I hope [MENTION=5501864]USBhost[/MENTION] puts all his work and updates info at first page.
[Nexus 9 Android Development] USBhost:
Google released the official november lte vendor

https://dl.google.com/dl/android/aosp/volantisg-nrd91n-factory-972fb42b.zip
[Nexus 9 Android Development] USBhost:
Version 7.1.0_r7 is up

7.1.0_r7 is up

Edit: i recommend a clean install

bad things happened when i dirty flashed it...

but it could also just be me, so be careful!
[Nexus 9 Android Development] albsat:
Kind request please, if possible. Can you and night mode also in the System Tuner? It is useful for reading.
[Nexus 9 Android Development] tibere86:
I can't get this to boot. Do you recommend flashing Fire-Ice kernel? Clean flashed and on newest vendor & bootloader.
[Nexus 9 Android Development] USBhost:
OK!

Make sure Gapps flashing fully.

For me when I reflashed them it did not install all the way causing a bootloop.

Try flashing it again.
[Nexus 9 Android Development] simo.scorpion:
I wipe system/cache/dalvik and flash rom, gapps and su .no problem for me

Inviato dal mio SM-G935F utilizzando Tapatalk
[Nexus 9 Android Development] dictionary:
I thought I saw a link to unlegacy for the n9 posted in here. Am I mistaken? Sorry, using the app and these search sucks. I went back a bit but didn't see it.
[Nexus 9 Android Development] USBhost:
There was however their device tree is ... Not as good as mine (:angel:) I need to update it. Then it will be better
[Nexus 9 Android Development] Lozone:
This the link I found.

https://builds.unlegacy-android.org/aosp-7.1/flounder/

[MENTION=5501864]USBhost[/MENTION] Will you continue with this thread or make a new one for Unlegacy builds?
[Nexus 9 Android Development] :
Hey man! Hope it is okay to ask about the unlegacy build? Are you building it yourself? Cause I am really happy with your ROM so far. The best I have used on the N9. Also if you are publishing it on Xda where can I find it? Been searching all around Xda and Google but the only thing coming up is the same link as in the post above this.

Thanks again man, and appreciate all the great work and support you have done for us with this ROM!
[Nexus 9 Android Development] madbat99:
It's not on xda, and won't likely be.

Edit:

But links are!
[Nexus 9 Android Development] USBhost:
Sorry for the super late reply.

Yes https://builds.unlegacy-android.org/aosp-7.1/flounder/ is the correct place

I no longer build them but I may do it sometimes

I will see about creating a thread about it.
[Nexus 9 Android Development] :
A little bit late to the 32-bit party, but has anyone using this version experienced issues passing Safetynet with Magisk? Did not have this issue with the 64-bit version, and I wasn't able to find a solution when searching for it in this thread. Any help is much appreciated :)
[Nexus 9 Android Development] virseph:
Is the unlegacy build 32bit as well? First time trying out this 32bit and my nexus 9 is finally flying! Thanks [MENTION=5501864]USBhost[/MENTION]
[Nexus 9 Android Development] USBhost:
I don't deal with safety net but I heard that the 32bit build don't work with safety net

No but I will most likely build an 32bit version of it
[Nexus 9 Android Development] jackieku:
Hello, 32-bit camp. :o

I don't think you want a 32-bit kernel. A 64-bit kernel works for both 64-bit and 32-bit user space code.

The gps.bcm47521.so (and glgps) is the userland HAL module that AOSP has only 64-bit version. I also found that LTE model users have more lucks because it use different GPS solution from Qualcomm, and both 64-bit and 32-bit HAL blobs are available.

The choice of the solution is done by "ro.hardware.gps" property. This is the related code

http://androidxref.com/7.1.2_r36/xref/device/htc/flounder/init.flounder.rc#144

http://androidxref.com/7.1.2_r36/xr...server/location/GnssLocationProvider.java#624

So the solution would be make the glgps able to run in the ROM, which in turn requires the 64-bit share modules being available at /system/lib64.

I am currently trying to build LineageOS 14.1 that have most things in 32-bit but still have 64-bit capability. I will update my result later but I cannot test the GPS because mine is LTE. :)
[Nexus 9 Android Development] scoliosis:
I finally got around to installing the 32bit version and damn! Thing is a whole lot faster and responsive. Only thing weird is that if I flash the ROM+Gapps Pico right off the bat, it wouldn't boot. I had to boot the ROM first, then flash Gapps. I hope USBHost will build a 32bit Unlegacy.
[Nexus 9 Android Development] Uz986:
which version should i install 32bit or 64bit

i have nexus 9 16gb and in AIDA64 app it saays its 64bit
[Nexus 9 Android Development] madbat99:
Whichever one you want. All Nexus 9s are 64 bit, but he built a 32 bit rom for it to alleviate stress on the hardware. In many cases resulting in better user experience.
[Nexus 9 Android Development] scoliosis:
Haven't heard from [MENTION=5501864]USBhost[/MENTION] for a while. Wondering if he is still monitoring the thread an if there'll be a 32bit Unlegacy build. Speaking of which, anyone tried Unlegacy to see if the 64bit version of it runs as smooth as this 32bit AOSP?
[Nexus 9 Android Development] USBhost:
Well.... I've been very busy dealing with my procrastination + school.... + My tablet has been very finicky as of late.

I nothing definite but hopefully I will get around to it in the near future.
[Nexus 9 Android Development] THEbigSWEEN:
I was actually just wondering the same exact thing and seeing if anyone could shed some light on the 64 bit Unlegacy vs 32 bit AOSP performance. Hadn't flashed anything on my tablet for a couple months now and had started looking into new options the last couple days and hadn't decided yet on the newer UN vs the older but possibly better performance 32 bit. Does anyone that has tried both have a strong opinion one way or the other? I'm sure I'll end up trying both eventually anyway :p
[Nexus 9 Android Development] scoliosis:
I might get to it next week. A little hesitant as the 32bit AOSP is making the tablet fly at the moment. Do I really want to mess with it? :D
[Nexus 9 Android Development] :
Know the feeling man. 32-bit version is really really good. Been running it around a month or so now, and I can't remember a time this tablet has been running smoother :)
[Nexus 9 Android Development] Uz986:
okay.i search on it and couldnt really understand the reason that how come 32bit rom runs more smoother...isnt everything should be faster on 64bit because its better then 32?

and i am on stock can anyone tell is this 32bit rom more smoother then stock rom
[Nexus 9 Android Development] madbat99:
No, no. You're not really understanding. Our hardware is 64 bit. But if you're running 32 bit software, it is easier on the system. Make sense? The 32 bit rom runs much smoother than stock. Theoretically, improvement.

Slight edit
[Nexus 9 Android Development] Marky__Mark:
How much RAM is saved?
[Nexus 9 Android Development] Choochter:
I tend to run Pure Nexus on my N9 but thought I would give 32-bit AOSP a go. Running the exact same configuration and apps as on PN I saved a few gig on storage but was surprised to find the RAM usage was almost identical. RAM used for my configuration tended to run between about 0.9 - 1.3GB. Really thought it would be a lot less. In terms of performance, there wasn't much difference between the two ROMs and, although I missed the tweaks and went back to PN, if all you want is stock then this is an excellent option.
[Nexus 9 Android Development] scoliosis:
32bit ROMs use slightly less RAM but not truly that measurable. I used PN for a long time but it is still sluggish compared to 32bit AOSP especially when using Chrome. Also takes longer for GBoard to startup. Note that this is comparing against 32bit AOSP. I haven't gotten around to testing 64bit AOSP but I found 32bit a whole lot more responsive when switching between apps and also no random "hang". I put "hang" in quotes because I later found that the system is actually functioning underneath (via ADB) but the screen isn't updated. When I kill the app using the screen at the time (via shell kill command) then the tablet comes back alive and updates the screen again.
[Nexus 9 Android Development] ryl313:
My Nexus 9 is now running the 32bit version and boy it's much more responsive than 64bit, even with battery saver turned on all the time! The amount of free RAM is 1 GB in average. I don't know about you, but I think it's awesome. Because AFAIK, the free RAM on 64bit version is 700 MB in average.

Unfortunately with this build, I can flash Open Gapps, because when I flash it, it's stuck at boot animation. I've tried flashing it after booting to the OS for the first time, but still hangs. So, what I got with this build a completely stock AOSP build.. Hahaha.

I wish it was Oreo, Nougat.. :silly:

I really appreciate your hard work USBhost :good:
[Nexus 9 Android Development] madbat99:
Did you use 32 bit gapps?
[Nexus 9 Android Development] ryl313:
Yes.. arm, 7.1, pico
[Nexus 9 Android Development] Choochter:
How about the setup wizard fix?

https://xdaforums.com/showpost.php?p=71937512&postcount=342
[Nexus 9 Android Development] ryl313:
The linked zip is for arm64. Will it run on 32 bit ROM?
[Nexus 9 Android Development] USBhost:
If Setup wizard FC at start... Just flash FIRE-ICE :angel:
[Nexus 9 Android Development] ryl313:
But my problem is not about fc-ing setup wizard.

It's about the ROM stuck at animating 4 dots boot screen after flashing gapps.
[Nexus 9 Android Development] Choochter:
The setup wizard fix is from Beans Gapps which cover both 32- and 64-bits. I flashed it just in case and the ROM booted up first time, don't know if the wizard was a factor or not
[Nexus 9 Android Development] ryl313:
I've tried flashing the zip and it's still stuck on boot animation ?
[Nexus 9 Android Development] Choochter:
Check the MD5s on your downloads and do a clean install, should boot up ok
[Nexus 9 Android Development] ryl313:
Hmm.. this is weird. I tried again from the beginning (flash 32 bit ROM, flash FI kernel, flash gapps arm 7.1 pico) and now it boots! FYI, I don't redownload anything. I don't know why ??

Thanks for the help ?
[Nexus 9 Android Development] scoliosis:
What I had to do was flash the ROM boot it up first. Make sure you don't install anything other than getting into the Launcher screen. Then immediately boot into recovery and flash GApps Pico. Then boot up and sign into to Google by starting the Play Store.
[Nexus 9 Android Development] tibere86:
[MENTION=5501864]USBhost[/MENTION] - Flashed the latest Nov 2017 build. I noticed that when using YouTube, I no longer get the option of watching videos in 1440p. Is this a build.prop issue with the ROM? The highest resolution allowed with this ROM is 1080p.

Another question...what should I use to achieve root with /data and /cache partitions formatted as F2FS? I tried MAGISK and SuperSU with no luck...they do not allow my Nexus 9 to boot.
[Nexus 9 Android Development] Traxx999:
I'm on the 32-bit Unlegacy train too! I was able to flash the latest ROM, the recommended GApps, Magisk, FED patcher and the build.prop fix without any issues. Tablet flies now!
[Nexus 9 Android Development] brutalv4:
What do you mean by saying 32-bit? :eek:
[Nexus 9 Android Development] madbat99:
In the op there is a 64 bit rom and a 32 bit rom. Your choice. Our Nexus 9 has a 64 bit CPU, but there is now a 32 bit rom choice for us. To attempt to ease the workload on the device to squeak out a bit more performance.
[Nexus 9 Android Development] scoliosis:
That's the AOSP 32bit. The Unlegacy is still 64bit right now...
[Nexus 9 Android Development] scoliosis:
Been playing Everyone's RPG Returns lately to pass time. It worked pretty well until the recent builds and looks like the Unity engine doesn't initialize very well on this ROM (32bit). It's a fairly recent occurrence. Restart it a few times and it eventually works but still weird. I take it as a sign that I should try the 64-bit Unlegacy :p
[Nexus 9 Android Development] astralbee:
This ROM proves that the Nexus 9 is best on aosp. This is the smoothest, fastest and best battery life I have experienced. I don't miss any CM features.
[Nexus 9 Android Development] mangomonkey00:
trying to flash this rom but stuck with bootloop

i flashed rom then rebooted to recovery and flashed gapps and then tried to reboot system but after google logo it restarts

and yes i have wiped system data dalvic and cache before flashing

and i have latest bootloader from factory image

and your hacked vendor for lte as i have a lte variant

also while flashing rom i get this E:unknown command [log] written in red

yet it says script succeeded: result was [1.000000]

what should i do
[Nexus 9 Android Development] USBhost:
That log error is normal...

Make sure the Gapps flash fully..... (They didn't for me)

Use the official November LTE Vendor.

If you still have problems

Get me a logcat of the boot.
[Nexus 9 Android Development] albsat:
Is there any November vendor for WiFi version?
[Nexus 9 Android Development] albsat:
Please can you post a link ?
[Nexus 9 Android Development] USBhost:
https://dl.google.com/dl/android/aosp/volantisg-nrd91n-factory-972fb42b.zip
[Nexus 9 Android Development] albsat:
I thought this was for LTE version. It is for WiFi ? Thanks again
[Nexus 9 Android Development] USBhost:
It's for LTE
[Nexus 9 Android Development] Choochter:
For future reference, just download the factory image from here:

https://developers.google.com/android/images

- unzip and pull the vendor.img, easy
[Nexus 9 Android Development] enriquejones666:
They've also added a link in the left sidebar on that page that takes you to a page with just the vendor images, if you don't wanna d/l the entire stock ROM.
[Nexus 9 Android Development] Choochter:
Doesn't cover the Nexus 9
[Nexus 9 Android Development] enriquejones666:
Do you have an md5 for this file. My internet is acting weird, and I've had to pause and resume the download a couple of times, and I'm not sure if I got a good d/l.
[Nexus 9 Android Development] mangomonkey00:
nothing worked so tried flashing rom and gapps along with your fire ice kernel and then it booted
[Nexus 9 Android Development] Iceman66:
Thanks, trick worked for me as well!
[Nexus 9 Android Development] lmulli:
Appears to have every Nexus device listed apart from the Nexus 9!
[Nexus 9 Android Development] b8842dc0:
Devices that have a vendor image (nexus 9, nexus 6p, etc.) are different from devices that have external drivers that get compiled into the ROM.
[Nexus 9 Android Development] lmulli:
Stuck at the boot logo here following a full wipe (Inc All Data) from the latest November Stock Rom. Used Full 7.1 Opengapps downloaded today. Tried it with FireIce Kernel, and it booted, although it does tell me that there's an internal issue with my device and then Google Play etc... fails. Vendor is up to date with the stock 7.0 Rom - anyone know if there's a new one for 7.1 ??

If only Stock was 7.1 :(

Thanks.
[Nexus 9 Android Development] brutalv4:
http://xdaforums.com/nexus-9/development/fix-build-prop-variety-fix-aka-contact-t3133347

have you tried this? ;)
[Nexus 9 Android Development] lmulli:
Spookily enough, I remembered having to use this ages ago with another rom and lo and behold, it was still on the USB drive. Still didn't change anything though as still getting Google Play services has stopped error message.

I'll try it with a different version of Gapps only these OpenGapps seem to give people nothing but trouble.

Thanks anyway.
[Nexus 9 Android Development] b8842dc0:
It is beginning to look like the November update has changed something with the kernel and/or boot image. I'm trying to understand why the stock kernel in an AOSP compile can't boot the device. I haven't messed around with nougat on my nexus 6, yet. But I wonder if the November update is causing problems for booting other Nexus devices. If so, hope that devs here can figure it out. Nothing against the fire and ice kernel, but I'd rather run a stock kernel, if at all possible.
[Nexus 9 Android Development] USBhost:
I thought the same....

I will try to fix it tonight or tomorrow morning.

I understand :cowboy:
[Nexus 9 Android Development] b8842dc0:
I've been running AOSP 7.0.0_r7 on my nexus 9. I'm essentially doing what you are doing. The only patches I'm applying are the ones to fix the FC on Google Play Services, the webview patch, and a minor change to not flash the stock recovery. Well, I've just compiled and installed AOSP 7.0.0_r15 (the November update) and it did boot with the stock kernel. Don't know how helpful this is for you, but maybe it gives you another data point.
[Nexus 9 Android Development] albsat:
[MENTION=5501864]USBhost[/MENTION]

Kind reminder for enabling Night mode in system tuner, on your next build! Thanks!

http://xdaforums.com/showthread.php?t=3447478