yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] Going2Hell:
Fix for 'low-audio' issues...

Since my NXA11 is now in the parts-bin, I don't work with it anymore. I did notice however; the Two speakers which are mounted into the frame, are EXTREMELY constricted. While I had it apart, I noticed the audio is MUCH louder after they're removed from the casing.

I never got the chance; I wanted to cut 1/4" diameter holes in the case backing, directly over the speaker locations.

Just a shot in the dark... Does anyone know the Baytrail hardware platform well enough to troubleshoot the board in a 'device-by-device' manner? At first, I was stuck at the 'NO OS FOUND ON BOOT' for a month or so... Then I got it working by using a variation of Vampirefo's procedure, then I made a bad Backup and kept poking around! Shortly wound up at the first issue again. My previous method of this fix no longer did the trick. I later found out how to access EFI shell and BIOS without a keyboard; promptly, I loaded an EFI script that blacked the screen for 4-minutes. I assumed it restarted, but I was wrong; it seems that the only hardware that shows any sign of life is the Power Module which has a nifty status indicator LED. It charges, cycles between full and charging modes as it had before. ABSOLUTELY NOTHING SHOWS A RESPONSE TO 'Power' or 'DNX' or 'Recovery' combinations. I tested the screen, it checks out. I tested the hardware key grouping, its fine. The graphics section on the board tests fine as well.

Is there anybody out there who knows of a 'SUPER BRICK' interface? Something like a module-by-module SPI interface? Diagrams of testpoints? Just a wild ass hunch that I can try; it will all be junk soon anyway, what's the worst that could happen? Hardware hacking is my hobby but; I'm not familiar with the ATOM platform outside of the generalized documentation provided by Intel Developer zone.

Or does anyone want to buy the batteries and screen?
[Android Q&A, Help & Troubleshooting] zyphoid:
So I made this post 8 months ago, and I've been using the NextBook NXA101LTE116 throughout that time. I would like some guidance on rooting, decrypting. Would the listed procedures work? I want to attempt them with some help

Thanks!
[Android Q&A, Help & Troubleshooting] CutterSpaulding:
Is this for the Nextbook Ares 11 2in1 Tablet Model NO: NXA116QC164 ?????
[Android Q&A, Help & Troubleshooting] Blondair:
Stock rom or recovery?

I got twrp loaded, and somehow lost the OS, only boots to recovery, and I'm unable to mount system at all. Cannot find a stock recovery or room anywhere.
[Android Q&A, Help & Troubleshooting] zyphoid:
The one I have is model number NXA101LTE116
[Android Q&A, Help & Troubleshooting] zZarchieZz:
So i found my old nextbook ares11 in the closet today, hadnt used it in a while cause it was slow. Anyways after readimg every single post in this thread and attempting to root my device, i cant even get passed this command

sudo ./trigger 4

It says using trigger 4 then it says the file isnt found on all four lines. Can anyone tell me what i am missing here?
[Android Q&A, Help & Troubleshooting] ixgameov:
Do you have the encryption disabled bootimage somewhere?
[Android Q&A, Help & Troubleshooting] shawn99452:
https://drive.google.com/open?id=0B9-VbovziTaKbmk0QVdvUkdTeFE

This is all my NextBook Ares 11 stuff. The encryption-disabled boot image is boot_noencrypt.img.

I can't guarantee this stuff will stay online forever, since it's my personal Google Drive folder. If anyone knows a permanent place to host the files, feel free to download everything and host it elsewhere.
[Android Q&A, Help & Troubleshooting] chinh4thepro:
do you have a nextbook ares 11a (gen2 with cherrytrail) i need to install the stock android version for it.
[Android Q&A, Help & Troubleshooting] shawn99452:
No, I only have the '11', which I believe is Bay Trail, and has Android 5.0, not 6.0 like the newer ones. Sorry.
[Android Q&A, Help & Troubleshooting] chinh4thepro:
Oh hmm, Im having trouble installing twrp to my textbook do you know how? (I'm using Linux but the process isn't different)
[Android Q&A, Help & Troubleshooting] bacchu$:
"Dear Kingoer,

Thanks for using Kingo Android Root. We are so sorry for not delivering the best result. We will keep trying and let you know as soon as your device is supported. You can always get the newest update of kingo by following our Facebook (Kingoapp). If you require any sort of help or assistance, feel free to contact us.

Your device info: Yifang NXA116QC164 5.0 V3.2.0.LRX21V.20150203.034024

Sincerely,

Kingo"

Didn't work with Kingo Root as well...
[Android Q&A, Help & Troubleshooting] _synack_:
i returned mine back to the store. i cant justify keeping it unless i can root it/unlock the boot loader. ill keep an eye on this forum in case that happens in the near future, but i imagine it will be pretty difficult since the tablet is encrypted by default:crying:
[Android Q&A, Help & Troubleshooting] mikekoz:
I also have this tablet, and for the most part I really like it. I would also like to root it, but my biggest complaint about it is that it comes encrypted with no option to decrypt. I even shot Nextbook an email, and they said there is no way to do it. I have never owned an Android device that did this. All my other ones have that as an option. I have done two factory resets, but the device does not decrypt. I believe the tablet would run a bit faster with the encryption removed!
[Android Q&A, Help & Troubleshooting] sinisin:
I've tried everything under the sun. Ive taken out model checks from countless apps. This effing thing is whack. Huh.

Going to get ahold of the straight binary and try to push with adb or has anyone tried that yet?
[Android Q&A, Help & Troubleshooting] vampirefo:
Well, I can only guess it's like my Nextbook Ares 8" tablet, if it is you can turn off encryption, once you root the device and repack the boot file, you lose all your data, but start over without encryption (which is garbage to begin with).

---------- Post added at 08:59 PM ---------- Previous post was at 08:47 PM ----------

I am not having any problems from my tablet, it also uses 5.0, I think your problem is due to forced encryption, I run my tablet without encryption. Honestly encryption may be more secure but it just slows a device down to a crawl. These tablets run smooth without app crashes with encryption turned off.

My tablet is Nextbook 8" ares, my guess same as your device just different size screen.
[Android Q&A, Help & Troubleshooting] shawn99452:
I was able to successfully root this tablet using the new Intel Android Devices Temp Root tool, from here:

http://xdaforums.com/android/development/intel-android-devices-root-temp-cwm-t2975096

You need the public trial version 05-16-2015, as the stable version doesn't have method T4 and the other methods don't work.

Use method T4. The screen freaks out a bit, but it will eventually load up the temp recovery and you can install SuperSU, and perform backups and probably flash new recoveries / ROMs (didn't try this, I only installed SuperSu since there are no custom ROMs yet for this device).

Unfortunately as far as I know Xposed doesn't have x86 support yet, so it is not possible to fix the Lollipop memory leak, but with root at least you can adjust the minfree values to help it not kill background tasks so often.
[Android Q&A, Help & Troubleshooting] vampirefo:
Here is how to root. http://xdaforums.com/showthread.php?t=3133165
[Android Q&A, Help & Troubleshooting] shawn99452:
Just a note, the above boot.img referenced by vampirefo for disabling encryption will 1) disable the micro USB port, and 2) mess up the touchscreen (trackpad still works). This is because the boot.img is for a different device (NextBook 8 I assume). I backed up my boot.img before flashing his, so I was able to extract the initrd.img and remove the forceencrypt option from /data. The bootimg referenced below can be fastboot flashed to the device to turn off encryption without messing up the USB or touchscreen. Hope that helps, in case someone less tech savvy flashes the other boot.img and gets upset. Sorry, as a new poster I'm not allowed to directly post a link, but the file is on dropbox.com, with https, and the rest of the url should look like this:

/s/prc577kbco53x1c/boot_noencrypt.img?dl=0

Someone should probably mirror it, because I can't guarantee it will remain there for more than a week or so.
[Android Q&A, Help & Troubleshooting] vampirefo:
Good guess seeing the thread clearly states it's for Next book 8 Ares, and a link to Walmart site and a price quote of $78.
[Android Q&A, Help & Troubleshooting] mikekoz:
Has anybody else tried this on their Ares 11? :confused::D
[Android Q&A, Help & Troubleshooting] bacchu$:
I did. T4 does work
[Android Q&A, Help & Troubleshooting] mikekoz:
That worked! I am rooted, but I still cannot decrypt the tablet. Do I just need to boot into the recovery and do a system reset?
[Android Q&A, Help & Troubleshooting] vampirefo:
You also need to flash a modified boot.img or you end up in a never ending bootloop.

Some people can't understand flashing a modified boot.img is must.

If you can't understand that don't wipe data.
[Android Q&A, Help & Troubleshooting] thew-tab:
I used it, and I have root now, very easy to use
[Android Q&A, Help & Troubleshooting] thew-tab:
I used the rooting method in post 26, I had downloaded supersu, put it on the external sdcard, then when the temp CWM came up, I installed supersu. After I rebooted the tablet, I downloaded flashify, then flashed the modified boot img from post 28, now it is rooted and decrypted now
[Android Q&A, Help & Troubleshooting] whaevr:
Same here! Glad to drop in here and find everyone coming together and sharing everything :)

and just to clarify for people reading through. After using flashify to flash the modified boot image, reboot to recovery

adb reboot recovery

and select the option to factory reset. It will take a few moments to format data/cache and after the device reboots it will be decrypted. Give the tablet time to reboot, mine took a few minutes

edit:

Wow. after updating everything and using the tablet decrypted, it seems a lot smoother! Posts on G+ actually load fluently and without lag. Memory leak be damned still but I wonder how much encryption was crippling this thing
[Android Q&A, Help & Troubleshooting] don_patch:
so I dont think i let it flash the modified boot image right, cause now im stuck in a boot loop. Is there anyway to fix this? or am I SOL? I can boot to recovery using the intel T4 program.

edit:

okay, i fixed it. All is good now :D
[Android Q&A, Help & Troubleshooting] mikekoz:
I am now officially rooted and decrypted! :D . Thank you, everybody for the help and guidance getting this done. I am familiar with rooting tablets and flashing, ADB, etc, but I do not do it everyday, and I am not an expert. Everything went very smooth and easy after reading everybodys posts. The encryption of the device is what was slowing it down. My Ares 11 is like a whole new tablet. The speed increase after doing all of this was dramatic. I have no clue why Nextbook decided to force encryption on it. They are doing their customers and themselves a disservice. Anyhow, I need to get back to rebuilding my tablet!! :laugh:
[Android Q&A, Help & Troubleshooting] bacchu$:
everybody who hasn't removed decryption yet should do this. you will not recognize the tablet. look forward do hae the memory leak fix and maybe dual boot mode to run windows on it as well. with all this it will be a great tablet for the money spent.
[Android Q&A, Help & Troubleshooting] shawn99452:
Aside from the Lollipop memory leak, the only other issue with this tablet that I've noticed is that when using Android's full-screen video player (happens with both NuPlayer and AwesomePlayer, which you can switch in developer options), sometimes, usually if you interact with the touchscreen while the video is playing, the video will not take up the whole screen, and will also cause video problems (flickering horizontal black lines) during screen transitions (whenever there's animation, but some applications seem more susceptible than others) after the video is finished. The screen "freezes" when the issue occurs; further animation, like trackpad or touchscreen input, will sometimes correct it. Once this occurs, a reboot is required to fix it. 3rd party video playback applications like YouTube and Netflix don't appear to cause the issue, nor do games. I assume it's an issue with the Intel video driver in the kernel, maybe with the 2D video acceleration Has anyone else had this issue on this device, or heard of anything like this in other devices? It will probably require another boot.img change if the issue is in the kernel, but that's not a big deal.

---------- Post added at 11:47 AM ---------- Previous post was at 11:07 AM ----------

The default minfree settings on this device seem absurdly high. Looking in dmesg, lowmemorykiller kills applications constantly because 'cache' drops below 225000KB. 'cache' seems to be controlled by the 2nd to last minfree setting, CONTENT_PROVIDERS. This means that if free memory falls below 220MB or so (which will happen since we only have 1GB minus graphics memory total), it will start killing off background tasks, like Play Music, Hangouts, etc. The values for inactive apps seems high too, which explains the inability to keep more than 1-2 apps in memory for any length of time. I think that if someone that knows more about the correct values for a 1GB Lollipop device could come up with improved values, overall performance and usefulness might be improved. I might play around with the settings some myself, but I don't have much experience with what are useful values. I don't have too many other devices to look at, by my HTC One M7, which has Lollipop and 2GB of RAM, has the exact same minfree settings. Maybe the developers of this device used minfree settings for a 2GB device instead of a 1GB device? Or maybe Lollipop has the same minfree settings by default on all devices?
[Android Q&A, Help & Troubleshooting] whaevr:
Turns out, there is an x86 version of Xposed for Lollipop! Much like the T4 root method, this is also a nice gift from the Zenphone community

Download zip, backup tablet if we haven't already, hook tablet up with usb debug and run the right installer files. The tablet should restart once Xposed is on and reboot. It'll have to optimize all the apps over and you should be good.

Also throwing this out there for those of you that want to use the Online Nandroid Backup app to backup the tablet. Here is the partition layout file for the tablet so the app can do a proper backup. Just paste that into a file named "partlayout4nandroid" save, and paste the file into /system with a root file explorer. This file just tells Nandroid what partitions to backup

Looking nice here :good:
[Android Q&A, Help & Troubleshooting] vampirefo:
Did you flash the fix for memory leak? And did it help?
[Android Q&A, Help & Troubleshooting] whaevr:
In the Xposed log pic I posted, the memory leak fix is indeed loaded and running (last line)

I honestly didn't get to spend much time actually using the tablet/watching ram usage besides putting Xposed on and some other modules though. So far I have Greenify, Powernap, and the Memory Leak Fix modules enabled. I put Powernap on before turning in lastnight and when I woke up this morning I found the tablet only used .3% battery per hour! Pretty awesome standby life now :D

I probably should have snapped a screenshot of that but it was early, wasn't exactly fully awake...

Aside from the power-saving things though, I'm not really looking to go too crazy on other xposed modules. Kinda interested in what was posted about the minfree values in post 40 though. Might mess around with that for now. Looks like I'm going to be doing some reading about ZRam and memory management settings..
[Android Q&A, Help & Troubleshooting] vampirefo:
I am only interested in the memory leak, I doubt the tablet will get the required update from next book.

Also I am on cell phone can't make out the pics, Hopefully the memory leak patch is working, I never used xposed before my only interest it is memory leak patch.
[Android Q&A, Help & Troubleshooting] whaevr:
Right, but Xposed is going to be the easiest way to apply the patch to fix the leak, its required. And I agree, no way would I sit around waiting for an update from nextbook. I doubt that'll happen
[Android Q&A, Help & Troubleshooting] steppinthrax:
Guys,

I just wanted to let you know I applied the Update for my new Nextbook Ares 8 I got yesterday. Initially when I followed the steps I got the device rooted. I then changed to bootimage from the dropbox link provided by shawn. When my nextbook booted up I lost touchpad and usb capability. Knowing little about android in general I spend several hours playing around with the device and I found the device finally connected to computer when I placed it in recovery mode. I was able to use FASTBOOT and post 27 (vampirfo) to fix the nextbook. It appears he wrote this post (27) for linix. I studied the files carefully and I was able to pass the individual fastboot commands to the device and placed a new boot image there. Upon reboot my device came back with touchpad and usb capability. IT is also rooted and encryption is disabled!!!!!!!!

Now, you guys keep talking about this memory leak. I don't find any apps crashing or anything, but I"m really running is maybe some chat apps and weather channel!
[Android Q&A, Help & Troubleshooting] vampirefo:
Yes, my boot.img is for Ares 8, I don't have any crashes either, just read reports Lollipop 5 has memory leak, and xposed has a patch to fix it.
[Android Q&A, Help & Troubleshooting] steppinthrax:
what are the affects for the memory leak.

Also why does Nextbook need to be involved in making the OS available. Can't you just get a load of android 5.1 and stick it on there (naive thought).
[Android Q&A, Help & Troubleshooting] vampirefo:
Each company is responsible for updates, you can't upgrade to googles android unless your device is a Google device, Nexus.

As far as memory leak, you can Google lollipop 5 memory leak and get all the info you want about it.

Basically it uses up battery, and over time cause lagging to the point the tablet is unable to work correctly.
[Android Q&A, Help & Troubleshooting] vampirefo:
Ok just installed xposed and patch, will see how it goes.
[Android Q&A, Help & Troubleshooting] steppinthrax:
I just did the xposed patch as well. Pretty easy, just double click on the two batch files after the reboots..
[Android Q&A, Help & Troubleshooting] vampirefo:
It's actually more than that via Linux, I suspect it's also more than that with windows.

Just clicking batch files won't install patches or modules, it does install xposed framework and app, which is useless without any modules.
[Android Q&A, Help & Troubleshooting] steppinthrax:
OK?

I followed these instructions in the other forum link.

How to install?

1. No matter what you do, back-up first.

2.Download and extract the file provided.

3. From extracted folder run InstallXposedInstaller.bat (Make sure you are rooted and you have enabled USB Debugging Mode if you have doubts kindly ask me in this thread). Once this is finished proceed to next step.

4.Now run InstallXposedFramework.bat file. Your phone will now reboot.

5. It will take a little longer to boot up but don't worry (only 5 mins at most if screen stuck at loading for more than 10 mins you are probably bricked).

6. Your phone now has Xposed.

I doubled clicked on the InstallXposedInstaler.bat (reboot) then I double clicked on InstallXoposedFramework.bat.
[Android Q&A, Help & Troubleshooting] vampirefo:
Yes, those instruction didn't install any patch or module, just installed xposed, which without the patch or modules, is useless.
[Android Q&A, Help & Troubleshooting] whaevr:
Once you have done the above and have Xposed installed install this app. You will then have to open the Xposed installer app and go to Modules -> and check Lollipop Memory Fix. Once you have the module checked in Xposed reboot the tablet. Leak should now be fixed
[Android Q&A, Help & Troubleshooting] vampirefo:
So pretty much the same as Linux, when he said how easy it was to install via batch, I knew a lot was missing, once he posted how he installed, I could see he only installed xposed and nothing else.

Having xposed installed means nothing, one has to then download and setup modules.
[Android Q&A, Help & Troubleshooting] whaevr:
Yeah guess I should have been a bit more explicit with the directions in my earlier post. I can see why it was probably understood that way, someone that has never used Xposed before would probably assume the same. I was just excited about finally fixing the damn memory leak and ended up cutting the post short.

So to summarize for anyone reading this

Xposed is the framework

Modules are what actually provide the functionality you're looking for, "Fix Lollipop Memory Leak" is just one of many
[Android Q&A, Help & Troubleshooting] steppinthrax:
Thanks,

I downloaded the Xposed Memory Leak fix and installed it. I then found the Xposed Framework Icon within my apps area. I went to modules and installed the Memory Leak Fix. I then checked it and rebooted the device.

Hopefully that should be it. Another question, does the memory leak fix application need to be running with the background?

Also, I don't really notice anything. I downloaded and played Sim city last night. I didn't really notice anything going bad and the devices worked pretty fast. I guess I will have to see within the next few days!

Thanks again.
[Android Q&A, Help & Troubleshooting] whaevr:
Eh, technically it is always "running" in the background! The icon you see in the app drawer for the Fix is just there for turning on debug options like logging and stuff, which are all disabled by default. So really, there is no reason to ever open the app for it. Once you have checked the module in Xposed and rebooted that is it :d

And yeah there really wouldn't be anything too obvious to notice either, the only thing to notice would be lower overall RAM usage over time. Which should hopefully mean less redrawing and closing of apps.
[Android Q&A, Help & Troubleshooting] vampirefo:
Check your log to make sure the module loaded, if it did then that's it for memory fix, I added other modules but main one is memory fix.
[Android Q&A, Help & Troubleshooting] steppinthrax:
what other modules have you added.

Also Maybe this is another topic but how does this device handle memory cards. I popped in a 32 gig samsung. It seems I can't move apps to the card and when I try to use movetosd apps they say it's not supported by my hardware?
[Android Q&A, Help & Troubleshooting] vampirefo:
[img=http://s11.postimg.org/ulqa93o8f/Screenshot_2015_06_17_18_34_24.jpg]
[Android Q&A, Help & Troubleshooting] shawn99452:
I've not tried moving any apps to SD, since the tablet has 64GB of internal storage. However, I have tried a Sandisk 64GB class 10 card, and a 32GB card of some brand / speed, and both worked fine. They have to be exFAT (or FAT32) formatted I think. I was able to do a backup in CWM, and flash a ZIP from the external SD, and I've used the card in ES File Explorer without any issues for moving files around.

Note that not all apps can be moved to the SD card anyways, and for those that can you can sometimes only move portions of the app and not all of it. Those that run services in the background, most Google apps, and those the developer just decides not to allow for some reason cannot be moved. Also, in Lollipop, most apps that can use the SD card will do it intelligently - if an app uses external storage for something (Pocket, Google Play Music, games with external data), they'll generally use the SD card for that stuff while leaving the program, which is usually fairly small, on the internal storage.
[Android Q&A, Help & Troubleshooting] vampirefo:
I have never moved apps to sdcard, If I need more space I simply make it, always have. At this point I have plenty of room but if needed, I will use sdcard as data partition, that way I set my data partition to the size I want. I think our data partition is 2.4 GB. Once I get a new sdcard, I will change that to 4 or 5 GB.