yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Android Development] Quick2822:
I actually just hooked it up to my car, through a USB cable and this (which I have wired behind the Nexus) and firm sleep works. I'll take it.

Thanks again, now I can finally get this installed.
[Nexus 7 Android Development] Nsx93:
Very good. As long as it work.
[Nexus 7 Android Development] vlx600d:
Thank you michiil

Got the rom running (crazy smooth for this tablet) didn't bother with otg since i don't plan on every using FM or camera (its in a Smart Fortwo if i need a rearview camera, I have bigger problems). WIth very basic tasker profiles, its doing exactly what it needs to do. thanks for the rom.
[Nexus 7 Android Development] mity93:
I don't know why, but it worked!

If I wanted to have the personalized navbar (with the music player and volume command) in another rom, what should I install? something from xposed?
[Nexus 7 Android Development] Nsx93:
No xposed needed. Its all in the setting. Under FN button. I don't have the tablet in front of me and I don't remember how to get to it. But I know its in the setting. U can add vol +, vol -, power short cut, next track, previous track. Play around in the setting. Its in there.
[Nexus 7 Android Development] mity93:
I explained bad, I found this function on this ROM (autodroid) and I would like this feature on other ROMS (like CM)
[Nexus 7 Android Development] Nsx93:
No clue. Maybe the Dev can chime in.
[Nexus 7 Android Development] Quick2822:
Just to update, Oxydo v18 with AutoDroid kept locking up about 10-15 minutes of any major usage, so I had to scrap that route.

The issue (I believe) with AutoDroid and Kangaroo was that kernel not supporting EXT4.

I flashed SlimKat F2FS and Kangaroo v1.2 and 2.0 and both hung at boot. I switched back to EXT4, repeated that, and it booted up with no issues. Unfortunately with SlimKat 4.4 and Kangaroo 2.0, fast charge doesn't seem to work. The battery drains (slowly) when charging.

So, the dance continues. I'm going to try AutoDroid with EXT4 and Kangaroo and see if that gives me better luck.
[Nexus 7 Android Development] dween:
Don't wanna sound like a ****/ungrateful., but has anybody actually got this to work?

I spent 6-8 hours trying to get this on my n7 and not once did it boot correctly!

I tried flashing with multiple recoveries nada, tried with flashing slimkat first, nada, slimkat wouldn't even boot correctly. Always hangs on boot.

Then if it did manage to get past the boot, it had constant error pop ups or asking to decrypt data.

Never had so much trouble trying to install a ROM in my life!

I'd very much like to try Autodroid (so much so I spent hours trying to install it) as it seems a bit better from what i've seen than Timur's USB ROM. However, I am now back to USBROM!
[Nexus 7 Android Development] papinist:
I posted this many times, I installed it and had it working for many months now.

I followed instructions in first post, had some problems with f2fs but searching the forum I found the original thread regarding slimkat f2fs and took some info from there. Then installed autodroid v1.2 and I am using it everyday in my car. It works flawlessy.

Don't know what problems all of you have, and unfortunately I am not able to help, but trust me this rom is awesome :)
[Nexus 7 Android Development] Beakfire:
Works perfectly for me, here's what I'm using:

Kangaroo v2

Autodroid v1.2

All partitions are EXT4

TWRP for Recovery

If I overclock to 1.6GHz or allow the CPU to use a governor other than the ONDEMAND governor when it goes to sleep then I have problems with the tablet.

If the governor is something other than ONDEMAND then the tablet will not wake from sleep.

If the CPU is allowed to overclock to 1.6GHz tablet will randomly reboot during operation.

Also be sure to make sure you have root access after flashing otherwise fast-charging and firm sleep options will not work. You may have to re-install the binary if you wipe partitions (particularly /system, if you wipe that one you definitely will need to re-load the binary) during installation.

To correct these problems I use tasker with the following profiles:

While Charging --> Overclock to 1.5GHz & Set governor as max performance

While not charging --> Underclock to 0.9Ghz & Set governor to ONDEMAND

Works fine for me, had a problem with latest google play services update draining more battery than ideal while tablet is asleep and just went through all of play services settings and permissions with app ops to try to limit what it's doing while the tablet is idle. I'm no longer using Firm Sleep FYI but have automated all the wake and sleep profiles using tasker.

Have my eye on the Nexus 9, a dev over there may crack the USB fast-charging in host mode for that one eventually for a N9 kernel at which point I'll ditch the N7 for a N9 in-car install and use tasker to automate everything since USB audio is built-in on Lollipop just need to be able to enable charging in host mode for it to work well with the in-car setup.

Last note when I downgraded from lollipop to go back to autodroid I had to wipe the entire tablet and load a google-provided factory image of 4.4.4 onto the tablet from fastboot before I could get autodroid to load onto the tablet again, at which point you have to load the root binary again as well. Just FYI if someone is trying to come down from a lollipop ROM to this.
[Nexus 7 Android Development] bigdogbts:
"works perfectly for me, but if i do X or Y or Z, it breaks"

Sounds to me like your definition of "perfect" is a little wonky. I wish that whoever was doing development on this ROM wouldn't have abandoned it. For now, I'm using (rooted) official lollipop and AutoSleeper to deep sleep everything when power disconnects. As long as I'm driving during the week, and the screen doesn't stay on constantly, I'm able to keep everything working and powered correctly. Host mode charging sounds like a great feature, but there seems to be alot of caveats just to get it working....
[Nexus 7 Android Development] Beakfire:
Well, considering this tablet was never designed or intended to be operated in this manner I'd say things are working rather well. Especially since the original CPU speed is 1Ghz and it's overclocked to 1.5Ghz and running without issue.

As a side note, it seemed like Sgt Meow might've been working on OTG+charge in the Oxydo-Revamped kernel, but also mentioned there not being anymore updates to that kernel until June and don't know what features would be coming next.

http://xdaforums.com/showpost.php?p=57984544&postcount=58

If he manages to get the OTG+charge working with Oxydo-revamped, which is a lollipop kernel then we should be able to run his kernel with any lollipop ROM and have the OTG+Charge and USB-DAC functions working since USB-DAC is built-in to lollipop.

If anyone else is trying to get autodroid to work the way I did it should be noted that I downloaded the kangaroo kernel from the original kangaroo thread here:

http://xdaforums.com/showthread.php?t=2558717

I flashed the kangaroo kernel v2 after flashing the autodroid ROM to ensure that it loaded the kernel. I noted a few times when flashing autodroid 1.2 that it did not flash the kernel like it was supposed to and I still had the factory kernel listed under 'System Settings -- About Tablet' which is what led me to go download the kernel and flash it separately from the ROM.
[Nexus 7 Android Development] gingerbreadassassin:
Have you tried/been able to get AutoDroid working with F2FS? I used NRT to downgrade from stock 5.1.0 to 4.4.4 (stock unrooted), rooted/flashed TWRP, formatted all partitions as F2FS, flashed AD, but can't get past the boot animation. I've tried both AutoDroid and SlimKat 4.4.4.

I'm a bit new to the N7, so I'll ask you to forgive me if I'm mistaken in assuming that F2FS will breathe new life into it. Even stock, it was sluggish, and ran similarly to my old GNex with all of its NAND issues.

Edit: realized I had reformatted all to EXT4 at some point. Still can't get the thing to boot. I found some solution up earlier in the thread, which I'll try now and report back.
[Nexus 7 Android Development] Beakfire:
I did play with F2FS a little bit but don't remember getting autodroid to load with F2FS partitions on the tablet. For the trouble I'm content leaving it alone on EXT4, I don't think the performance increase would be much anyhow with it F2FS.

If you're set on getting it to work F2FS I'd try to get another ROM to run with all of the partitions F2FS on 4.4.4 and then try coming over to autodroid.
[Nexus 7 Android Development] expone:
Hi all,

first, thank you very much to all who made this Rom possible. It is pleasure to use it.

But unfortunately since some days, as long as my Grouper is connect to the power cable and I playing music, sometime the device is hanging completely so that only a power-hard-reset (pressing power button > 10 Seconds) will recover the device availability. I don't have any issues if the device running only with battery,

I already re-installed the entire rom also using the following "ordering":

Full wipe.

Install Slimkat 4.4.4

Install AutoDroid

Install Gapps

Install Oxydo v18 Kernel

Do you have any other idea to solve it or to get more debugging information?

In advance thank you very much. Best regards,
[Nexus 7 Android Development] gingerbreadassassin:
I was able to get AutoDroid to boot after flashing this rom, then dirty flashing AD over it. However, when I flash the Kangaroo v2 kernel, it never gets past the Google logo. I think this might have something to do with SELinux being disabled in the kernel, when SK and AD are looking for the support.

I'm still playing around with it, we'll see what happens.
[Nexus 7 Android Development] gingerbreadassassin:
Strangest thing. Reverting back to TWRP 2.8.3 got AutoDroid1.2/Kangaroo/ALL-F2FS working for me.
[Nexus 7 Android Development] darksmart:
Blank Boot screen after flashing autodroid.

After flashing,I am getting a blank boot screen and my grouper (32gb)never boots ups.have tried many times but no luck.

:(

Please help. btw Anyone facing same issue?

I flashed it from lollipop too Autodroid through TWRP.Also tried multirom but no luck.
[Nexus 7 Android Development] Beakfire:
You're probably going to have to come down using a factory google image for 4.4.4 before you can load autodroid again.

When I came from Lollipop --> autodroid as I mentioned before I had to wipe all of the partitions and load a factory google image and then flash autodroid, recovery and the root binary over the factory image.
[Nexus 7 Android Development] Ryan Cordero:
Any other 7 inch tablets put there we could use? My nexus 7 is so slow and always dying.
[Nexus 7 Android Development] superrama:
can someone share their tasker profiles for turning on tethering? The ones i found online are either outdated or do more than i need. im looking for a simple profile that will turn on my tether when tablet see my phones BT and then turns off the tether when my phone disconnects.
[Nexus 7 Android Development] Beakfire:
The Nvidia Shield Tablet is a good candidate, it's 8" though.

It has OTG-Charging support out of the box from Nvidia, it does, however, have some quirks.

.. I read a lot of bad reviews, people RMAing them for bad batteries and plastic edges that crack up on their own

Another quirk I read about is that in order to enable the OTG-charging if the tablet was off and you turn it back on with an OTG cable still plugged into it you have to unplug and re-plug it to enable the host-mode charging again. That one would cause trouble with our setups, unless you felt like unplugging the cable from your tablet every time you start the car. You could custom make your own cable and wire a FET across the ID and GND pins from source to drain for the OTG cable and give it +5V from your +5V that comes to the tablet on the gate. That way when you turn off the car it'll disable the OTG mode on the cable and when you turn it on it'll re-enable it so the tablet will think you unplugged and re-plugged the OTG cable and should start charging. You'd have to use a break-out-board from a robotics supply shop to do it, I was thinking about it but I'm holding out for the Nexus 9 to see if they make an OTG charging kernel for that tablet later on, otherwise I might have already started testing with a shield tablet.
[Nexus 7 Android Development] fornax01:
This is amazing, managed to get this working as: AutoDroid1.2 (Kangaroo Kernel 3.1.10) + (ALL-F2FS) + (Multiboot / kexec).

The rom has the kangeroo kernel from lostdeveloper built in with kexec-hardboot patch and f2fs patch already applied.

To get this working I had to revert back to TWRP 2.8.3.0 factory reset through wipe menu then format the system partition. then i installed the rom, gapps, supersu, and busybox through install zip menu, rebooted, then installed multirom app through google play. and rebooted.

everything seems to work fine, hope this helps anyone that needs it.

p.s. i would love to get the kernel from this rom with the patches applied as a seperate zip to try on other roms but the only thread i can find for the rom on xda is this one but hasnt been updated for a while and dosent have latest builds in zip format.
[Nexus 7 Android Development] jateelover:
USB OTG

Hi - strange issue here...no matter what I do, I can't get USB OTG to work in this rom, yet stickdroid can mount the USB fine. It is driving me crazy. I don't want to use stickdroid because I'm afraid it won't mount my easycap. Seems strange that it works but won't work normally. Thanks.

Edit - And it works perfectly with kanga-rom, same kernel installed (Kangaroo v2). Strange.
[Nexus 7 Android Development] phukao:
Confirm All-F2FS must to format with TWRP 2.8.3.0 (Grouper)TWRP 2.8.3.0

I'm using Tilapia device, no luck on newer TWRP version, rom work fine with ext4. when convert to F2FS it still on GOOGLE logo. this solve by format/convert partition with TWRP 2.8.3.0 (grouper). it will work fine.
[Nexus 7 Android Development] sgt. meow:
Are the USB hostmode bits working properly using Kangaroo kernel and this ROM?
[Nexus 7 Android Development] michiil:
Kangaroo kernel is already built in and yes usb hostmode works perfectly well. At least it did for me.
[Nexus 7 Android Development] sgt. meow:
That's on KitKat though, right? Is there a Lollipop kernel now with USB hostmode working as it should be?
[Nexus 7 Android Development] michiil:
Well i cant tell you that. My nexus 7 broke down.. Thats the main reason i stopped development..
[Nexus 7 Android Development] sgt. meow:
Oh. Sorry to hear that.

Thanks anyway. Sorry for bothering you.

Cheers.
[Nexus 7 Android Development] Beakfire:
There is no lollipop kernel that supports host-mode fast-charging for the Nexus 7 yet, at least not this version of the nexus 7. I think I saw a few for the newer N7.

That's the one thing holding us back from running these in-car installs with the host-mode charging running anything Android 5+. The audio routing bits are built-in to lollipop, I've already tested everything works for the USB hub, USB DAC and flash stick out of the box on lollipop, but the tablet will not charge while in host-mode due to lack of a kernel that supports OTG host-mode charging.

I think I actually used stick-mount though to mount the USB flash stick on lollipop.
[Nexus 7 Android Development] bigdogbts:
So I have the system completely up and running with one caveat, and it's driving me mad. I like using the GSAM battery monitor on my N7 because it lets me see exactly what's happening with the battery from a voltage and charge standpoint. With 4.4, Google removed the ability for non-system apps to have access to battery stats, so the developer made a tool that essentially uses root to move the APK into /system/priv-app. Problem is that no matter what method that I choose, I cannot get this APK into that folder. I've tried root explorer, ES File Explorer, the native GSAM app, and even the file manager from inside TWRP. Anyone have any ideas how I can get this accomplished? It's a little thing, but it's the one thing keeping this as a 95% perfect install instead a 100%. Open to suggestions.
[Nexus 7 Android Development] jateelover:
Just wanted to say I tried a couple easycaps from amazon, no go. Found this one on eBay. Seller assured me it was stk chip as stated. Worked right away with easycap viewer.

http://pages.ebay.com/link/?nav=item.view&alt=web&id=291025947107
[Nexus 7 Android Development] absoluteapoorv:
More details please

Hi [MENTION=704668]xyron_2k[/MENTION],

Thank you for giving another angle of 'battery-less direct supply' to this thread. Very interesting.

Can you please detail/clarify on my following queries :

Does your tablet stay on standby all the time, I mean even when the car is off ?

If above is true, then doesn't it have a toll on the car's internal battery (because it'd be supplying for the power) ? have you faced any such issues with your car's battery?

If both of above are true, the tablet is supplied with power all the time. In this case how can we detect ignition is ON to wake up the tablet.

It would be great if you can supplement it with some wiring diagrams, photographs.

Thank you for sharing your work.
[Nexus 7 Android Development] xyron_2k:
Hi there. Thanks for asking.

My answers to your questions are:

1 & 2. Yes it does stay on standby all the time,(screen goes off) even when car is off. Regarding car's internal battery I had no issues at all, probably because the power consumed is very low in standby.

3. To detect the standby i used a normal 12v usb car charger, nothing fancy to supply a 5v charge plugged in the usual charging connector, connected to the ignition wire( in my case is the red wire which goes to the car stereo)

There is a way to avoid doing that but you need to wire a button to the power switch of the tablet which can wake and send to sleep your tablet, option which I voted for, later and I plugged a usb dac for better sound and no distorsions. I will try to use my paint skills to draw a schematic for you. Cheers.
[Nexus 7 Android Development] DarkN3ss61:
Hi I have tried connecting both of my 2 USB DAC's but the sound is still coming out of the tablet, is there a setting I need to change so this will work?

Thanks
[Nexus 7 Android Development] barnesk9:
Would you be willing to help me continue development on this rom? At least provide some assistance on how you we able to add the otg and charging bits to the kernel?
[Nexus 7 Android Development] bass0324:
If you wanted to continue development, use oxydo-revamped with latest aosp. It already has otg and charging bits working. I am working on getting external drive automount working but usb dacs already work along with charging and usb together
[Nexus 7 Android Development] DarkN3ss61:
The USB DAC's are not working
[Nexus 7 Android Development] bass0324:
I tested chroma with the latest oxydo-revamped and I can confirm they were working for me
[Nexus 7 Android Development] DarkN3ss61:
How did you get yours working? did you just plug and play? or did you need to change some settings?
[Nexus 7 Android Development] bass0324:
Was just plug and play for me, didn't need to adjust anything. If it doesn't work for you, I'd suggest searching this thread for powereventmgr.apk and installing that to toggle the usb host bits and seeing if that helps you at all
[Nexus 7 Android Development] DarkN3ss61:
Just flashed this kernel and its now working! http://xdaforums.com/nexus-7/development/oxydo-revamped-kernel-nexus-7-2012-t2978950
[Nexus 7 Android Development] bass0324:
:):thumbup:
[Nexus 7 Android Development] mexander:
Has anyone had any success with USB tethering? WIFI tethering works, but I've had no luck with either Bluetooth or USB tethering. I know it works from my phone's end because I've had success connecting from my computer, but not from the tablet.
[Nexus 7 Android Development] DarkN3ss61:
BUG​

I have a bug where it won't wake up when it gets power, even when I press the power button it does nothing, its basically frozen. So I need to hold down volume down and power to boot into the bootloader to start the tablet back up again.

Can you please fix this.
[Nexus 7 Android Development] xxLexanixx:
Did any of you ever a 3G stick placed on Wifi Nexus 7 to run?

I have the Autodroid ROM on it but every time I want to connect my 3G stick in PPP Widget 2 He breaks off :(
[Nexus 7 Android Development] EclipseX:
where I can find gaps?
[Nexus 7 Android Development] whenri14:
Hey guys got the ROM installed and working I love the ROM setup especially with nav bar. What do some of your guys use this for any specific things you do in connection with your phone?
[Nexus 7 Android Development] fr4nk1yn:
http://xdaforums.com/general/paid-software/android-4-1-headunit-android-auto-t3125252
[Nexus 7 Android Development] mikereidis:
:)

Then there's Torque, FM radio apps, maybe AutoMate, and can't forget Waze...
[Nexus 7 Android Development] whenri14:
Yeah I was looking into HU but it seems like it's more of something to tinker with than actually use on a daily basis or am I off?
[Nexus 7 Android Development] fr4nk1yn:
Yes, you're "off". I've been testing it in the car all day and on the bench before that. Android Auto kind of like android wear, it seems rather lackluster but one you start using it it's impressive. I'm having more trouble with the ROM then HeadUnit which leads me too...

Is there any recommended settings or tweaks? The tablet is not gong to sleep reliably. Sometimes it doesn't charge while plugged in, which could lead to not sleeping, but sometimes it does it while charging.

I't also not waking up reliably, probably same reason. Twice it froze on the homescreen, after waking, and had to have the power button held to restart.
[Nexus 7 Android Development] barnesk9:
I recently upgraded from Timur's USBrom to this rom and it works great for the most part, the only issue I seem to be having is the music player, it drops the music every time I turn my car off and no players will keep it except poweramp which I don't want to use because of the lag between pressing skip and the song actually changing. What music players do you guys use?
[Nexus 7 Android Development] Mpegger:
I'm trying to get this rom to install but so far I've had no luck. I initially tried the F2FS instructions, but it would hang on the black Google screen with the small open lock at the bottom and never go past. I reverted back to EXT4 and tried to install again and it gets past the black Google screen, but only to a blank black screen and hangs. I read through all the posts and tried another method mentioned, installing SlimKat and GApps first, which did work, then installing AutoDroid over SlimKat and doing the normal wipe, which appears to work, but when it finally gets to the "desktop", I just keep getting a "Unforunetly, xxxxx program has stop responding" and it doesn't do anything when I click on ok, except display the same error again. No "desktop" ever appears and the only thing I can access is from the top info bar. What am I missing or doing wrong? :confused:
[Nexus 7 Android Development] antnos:
Hi to all!

I'm trying to flash this rom in my nexus 7 no 3g version and the procedure pass correctly but after turn on the tab it don't exit from loading screen..

So what i can do ?

---------- Post added at 07:53 AM ---------- Previous post was at 07:39 AM ----------

Ps.

Is it possible to have the complete guide step by step for flash this rom to a brand new pad?
[Nexus 7 Android Development] antnos:
now i'd unbrick with a follow custom rom

http://xdaforums.com/nexus-7-2013/development/rom-chroma-04-05-2015-layers-t3073833

so i can immagine the problem was a tilapia for my device... but with a tilapia version where i can find the gapps too?