yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Q&A, Help & Troubleshooting] jkap310:
On the website it says " Note: It seems that -7xx builds became -4xx with Google Play Services 6.5. If you were on -7xx before, you should now install -4xx."

So, I guess we should be using .434, which doesn't exist either :P

Anybody had any issues with .438 and saw a noticeable improvement. I will give it a try when I get home !
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
Actually yeah I installed the latest ones linked and did not see any adverse effects, so its working just fine here. Have no clue if the device is running any better because it was running great already.
[Nexus 7 Q&A, Help & Troubleshooting] smartjais:
Ok was wondering if it was just me... glad to see google has improved something that really matters in terms of usage that is battery life.:highfive: Still some small bugs like the estimated charge time is way off sometimes i noted but i am sure that will be fixed later.

Is the ota stock lollipop build on nexus 7 running on ART runtime?

cant seem to find the settings for this anywhere or something that shows its running on ART. :confused:
[Nexus 7 Q&A, Help & Troubleshooting] l.skywalker:
When will be the Lillopop lagging fix?
[Nexus 7 Q&A, Help & Troubleshooting] joaopaulo_:
After 2 days with stock ROM my device are running a lot better. I dont know why... Only facebook crash because isn't optimized to lollipop.
[Nexus 7 Q&A, Help & Troubleshooting] cptsashimi:
My grouper had horrible lag with KitKat and I couldn't wait to try stock lollipop. I flashed stock images and performance was hit or miss. I wiped cache and factory reset once more and things seemed to improve and kept improving with time.

Since the discussion yesterday about play services and what version to use, my tablet has upgraded to 6.5.87 (1599771-430) on it's own. Performance seems even better still.
[Nexus 7 Q&A, Help & Troubleshooting] cykoduck:
After my OTA upgrade caused the worse lagging, I went back with stock flash and been very happier with my old nexus 7
[Nexus 7 Q&A, Help & Troubleshooting] tronmech:
FWIW my Google Play Services is 6.5.87 (something-430). And things seem somewhat better. The update to that version wasn't pretty, gmail died saying that I needed to install Google Play Services. One reboot later and things seem OK. Of course I hardly have anything on the tablet.
[Nexus 7 Q&A, Help & Troubleshooting] PunishedSnake:
f2fs lollipop rom available?
[Nexus 7 Q&A, Help & Troubleshooting] calisun:
I am
[Nexus 7 Q&A, Help & Troubleshooting] Paramesh96:
There are 2 Lollipop F2fs roms available(RASTAPOP,BszAospLp)
[Nexus 7 Q&A, Help & Troubleshooting] PunishedSnake:
Hmm for 2012 nexus 7? I cant find them
[Nexus 7 Q&A, Help & Troubleshooting] Paramesh96:
check out this two threads

BSZAospLp

Rastapop
[Nexus 7 Q&A, Help & Troubleshooting] calisun:
I have f2fs Rom nszaosplp installed. It works great if google launcher is not used.
[Nexus 7 Q&A, Help & Troubleshooting] PunishedSnake:
What does that mean?
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
It means if you use Nova launcher it then works great, lol...
[Nexus 7 Q&A, Help & Troubleshooting] chrisnewton:
Just done a factory reset on my wife's nexus 7 and so far so good, seems to be working much better. Just hope it keeps up!
[Nexus 7 Q&A, Help & Troubleshooting] jadesse:
My 2012 32G Nexus 7 is currently stock & not rooted. Let me say that the performance with 5.0 just plain suck & is unacceptable. I have a couple of apps that just plain will do not work. There are other games & apps that run slow & crash all the time. Just even going to look at the recent apps take a few seconds so the performance of the overall system is slow.

Sure I probably could root my device & do a full wipe. That is not the point, the average user is not going do that.

Can I go back to KK without rooting?
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
I'm sure NRT can do that for you. Actually not sure but yeah
[Nexus 7 Q&A, Help & Troubleshooting] PunishedSnake:
Omg dude thank you so much. Used twrp 2.8.2.0 to convert to f2fs and flashed the bsz rom and now the difference is night and day. I honestly dont see a reason to get another tablet right now lol

I'm using google now launcher...no issues
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
Yeah agreed, no reason to get another tablet now... Oh and there is one big issue I have with Google Now Launcher, its not as nice as Nova. lol
[Nexus 7 Q&A, Help & Troubleshooting] PunishedSnake:
Lol

Im waiting for a good ROM for my HP touchpad!!! Lollipop!!!
[Nexus 7 Q&A, Help & Troubleshooting] pseudobluz:
Thanks a lot! I have done the same and now have a properly functioning device.

I'm not sure if it was really necessary to convert filesystem but did it anyway.

Google did a really crappy job with factory image.

Also stock launcher works great with this ROM.
[Nexus 7 Q&A, Help & Troubleshooting] kugami:
Include mkernel with your setup and you will see a huge performance boost.

Sent from my Nexus 7
[Nexus 7 Q&A, Help & Troubleshooting] treesurf:
I'm running rastapop with m-kernel and performance is actually better than kit Kat.
[Nexus 7 Q&A, Help & Troubleshooting] phrozenstare:
i don't know which nexus 7 you guys with a good experience with lollipop are on but i had no choice but to go back to kitkat (used slimkat with F2FS) to get my tab back because it was just unusable
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
Its not the Nexus 7, its the Lollipop version. All the stock ones are crippled when you compare them to something like SlimLP or CM12. There are 3 or 4 Lollipop roms that blow the utter doors off any KK rom. SlimLP + F2FS + M-Kernel a73 has nearly every app working instantaneously. You can see hundreds of comments back to back to back in that thread all saying the exact same thing.

EDIT: I have even seen several comments say it is now TOO FAST. Here are a few of the many comments I found in just a few seconds of searching.

http://xdaforums.com/showpost.php?p=57182382&postcount=196

http://xdaforums.com/showpost.php?p=57199479&postcount=213

http://xdaforums.com/showpost.php?p=57160308&postcount=184

That is just a few of the guys being amazed at the new Lollipop. But not the stock ones or the OTA version. SLimLP and Rastapop ROCK though, among a few others :good:
[Nexus 7 Q&A, Help & Troubleshooting] phrozenstare:
no doubt they would be better than stoc kbut with all my flashing lately i think i will just wait until it reaches beta or a stable release. for now i am just glad my tab is fast again i haven't had it run this smoothly since JB
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
I hear ya, but I haven't had mine run this smoothly since ever. Its just a completely brand new device now.

---------- Post added at 10:20 PM ---------- Previous post was at 09:58 PM ----------

In fact, I'm so impressed with SlimLP that I think I will do a video on it.
[Nexus 7 Q&A, Help & Troubleshooting] jdiamond7:
Thanks for the mention SkOrPn, I'm one of those comments. My device was barely usable on KitKat and was completely unusable on the Lollipop OTA. SlimLP + F2FS + M-Kernel and I'm now screaming fast.
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
Yeah, I am thankful to all the Google devs, and the 3rd party devs here who made this possible. I was really hurting for a faster device but just could not afford the new N9, and thought about a much faster Intel Atom based tablet as they are so cheap, but none of those are Nexus devices either and much less 3rd party rom support. So, getting something as efficient as this SlimLP is surely has made this device much more tolerable for me. And its still early so this could get even faster?

I still long for a new device though but just not as severely anymore.
[Nexus 7 Q&A, Help & Troubleshooting] stanley321:
Same here, thank you for sharing this combination. My 8GB Wifi is finally usable.
[Nexus 7 Q&A, Help & Troubleshooting] rapid_rabbit:
I have two n7 (16/32 gb) one upgrade over OTA and one from factory images. The one over OTA (which has lots of apps) runs awful the other one is fine.
[Nexus 7 Q&A, Help & Troubleshooting] AndDiSa:
The performance of our N7 depends much on ssd fragmentation. Try to run fstrim on /cache and / data and the performance will increase much.
[Nexus 7 Q&A, Help & Troubleshooting] hasenbein1966:
Flashed SlimLP with F2FS. Now the tablet is fast, it's really a difference like night & day.
[Nexus 7 Q&A, Help & Troubleshooting] Skyrocketing:
Anyone mind helping me solve some performance issues? Lollipop initially crippled my N7 so I formatted cache, data, and system to F2FS and installed the F2FS version of SlimLP. Things still are still laggy though. Clean flash too.
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
Wow, that is the very first time I have seen that said.

I would do all the steps again except this time only flash the ROM and boot. Once booted sign into your wifi and wait about 5 minutes. Turn off the device and then boot into bootloader and then select recovery. Once in recovery, flash the latest mini gapps, either banks or slim. You can find banks at euroskank or slim at Slimrom website. Reboot into Android again.

Now run busy box and make sure it's installed, just in case. Also run SuperSU to see if it wants to update the Superuser binary. If it does use the recovery method. Reboot the device if it doesn't on its own.

Lastly make sure all apps are updated and then turn off the screen with it charging for long enough to fully charge and then Reboot again. It should be the fastest it has ever been.
[Nexus 7 Q&A, Help & Troubleshooting] Skyrocketing:
I'll definitely give it another go. Just to make sure, this is the correct thread for SlimLP, right? And this for recovery? Also, I flashed the L gapps in that SlimLP thread instead of the Slim gapps because I noticed those were for 4.4.X and figured I should go with the Lollipop ones.

EDIT: Just saw the Beta 5.0 Slim gapps. I'll try those.
[Nexus 7 Q&A, Help & Troubleshooting] scotth324:
I began having issues with my 16gb nexus 7 again and cleared all recent and it sped up again. Got slow again so went into Dev options and set max background processes to 4 and it is working great again. Has been a few days since I did this and its still working good. Might be something for some of you having issues and not wanting to flash a custom ROM to try.
[Nexus 7 Q&A, Help & Troubleshooting] steviemch:
Initially my flash of the factory image ran great on grouper. Lately however it started to lag quite badly, so I flashed [MENTION=1050103]sykopompos[/MENTION] Frank 5.0.1 build and it's like a new device.

Sent by neural subspace transceiver node.
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
Yes and No, that is the wrong Recovery for sure. You MUST use TWRP 2.8.2.0 for all this to work proper these days. Just download from TWRP and flash using the latest Fastboot. In this case you should also get the latest Minimal ADb and Fastboot installed with the latest Google drivers. Everything has been updated recently, including recoveries, rom binaries, adb and fastboot and even the Google USB drivers are new. You need to use them all in order to be successful.

Go to these links and download the latest proper items. You MUST be on Bootloader 4.23, so reboot into Bootloader and make sure the version is 4.23. Good luck and happy flashing :good:

ADB & Fastboot http://xdaforums.com/showthread.php?t=2317790

Google USB Drivers http://developer.android.com/sdk/win-usb.html

TWRP Recovery for Grouper (N7) http://teamw.in/project/twrp2/103
[Nexus 7 Q&A, Help & Troubleshooting] Lutziver:
Back to Life

Hey there,

I now it has been said hundred of times, but I think converting your Filesystem to F2FS is the key to bringing back life to your Nexus 7 if you happen to have one with the cheap flash storage.

I had very poor performance with my N7 in the last months, sometimes everything was normal and sometimes it took 30 seconds to start the launcher and an app. I hoped doing a factory reset and clean install of Lollipop would solve my issues, but it didn't.

It was really annoying me because I think otherwise the N7 still has great hardware for normal usage. So my last hope was converting to F2FS and after a weeks use its still doing extremely well. Not lightning fast of course, but just usable again! Like I relived my tablet.

My complete procedure was converting /data /cache and /system to F2FS using latest TWRP (2.8.2.0) and than flashing the F2FS-version of Rastapop and M-Kernel. While the latter 2 might also matter I think the Filesystem should be the main boost. I have used various custom roms and kernels before and to be honest never experienced a lot of gains from them, performance wise. But since you need a f2fs-enabled rom and they are performing so well I wish to recommend them to anyone reading this. Thanks for the great work!

Hope this post helps someone to decide its worth converting their filesystem. If you know how to install a custom rom its really easy to do so :)
[Nexus 7 Q&A, Help & Troubleshooting] :
Do all Nexus 7 2012's have this cheap flash storage or only a certain batch?

EDIT: Found the answer, Hynix NAND = No Lag, Samsung NAND = Lag

Mine is a little sluggish sometimes although not to a point I get frustrated with it.
[Nexus 7 Q&A, Help & Troubleshooting] edgeball:
how can I find out which one I have? Hynix or Samsung?
[Nexus 7 Q&A, Help & Troubleshooting] Skyrocketing:
Been using SlimFS + All-F2FS + M-Kernel for about 2 days and it's at least better than stock, I can say that. Stock effectively bricked my N7 because of how awfully slowly/unresponsive it is. With my current setup it's still common to have hiccups or delays, but I'm not sure what it's supposed to be like. It seems like the animations were sped up to give the appearance of faster performance but I'm not sure. Also trying keeping background processes to 4 to see if that will help.

EDIT: As I thought the animations were sped up. Putting the scale/duration back to 1x makes it look much more normal.
[Nexus 7 Q&A, Help & Troubleshooting] xateeq:
I can conform that doing so do make a seemingly dead slow tablet useful.

Sent from my Nexus 7
[Nexus 7 Q&A, Help & Troubleshooting] Arsis:
Hi guys,

because i'm really bored of that sooooo sloooooowy Lollipop (tried many rom's and even with F2FS and it's still slow, laggy and ... simply terrible), so i'm reverted back to old android 4.2.1 and it's ... damn, it's amazing! Absolutely something else, fast, reaction are immediately, no lags, it's completely diferent device!! So, please, i need to ask - is there any way to have Lollipop with performance of old Jelly Bean, at least a little of? Because .. i really like that new UI and everything else in Lollipop, but Google made it unusable for our grouper (also as KitKat - that have also terrible performance).

Thanks and i'm sorry for bothering you guys. :silly:
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
You tried many ROMs? OK list the rom you tried please, and I think I can tell you if you missed a good one or not. Sounds more like trolling to me... I was on jelly bean and hated it
[Nexus 7 Q&A, Help & Troubleshooting] AndDiSa:
Before you convert to a new filesystem try to trim the emms:

# fstrim -v /data

and

# fstrim -v /cache

as root in a terminal or adb shell. It will help you much to reduce the lag. It seems to me as if automatic trimming is not working for our N7, so we need to trigger it manually.
[Nexus 7 Q&A, Help & Troubleshooting] SkOrPn:
Do you have a Terminal app you prefer to use or does it matter? I own the original Terminal Pro purchased directly from the developer, but it never linked to Google Play store so it never updated above 4.01, which I think is like Jelly Bean days. I wonder if I need to find a new terminal app?

EDIT: Never mind me it looks like the included Terminal app is the most updated one in the play store anyway.
[Nexus 7 Q&A, Help & Troubleshooting] Skyrocketing:
What if you haven't trimmed and you already converted to F2FS?
[Nexus 7 Q&A, Help & Troubleshooting] AndDiSa:
You can always trim, it was only a suggestion to try trimming first before starting all the work to change the file system type ...
[Nexus 7 Q&A, Help & Troubleshooting] Skyrocketing:
I'm getting an error when trying to use fstrim: FITRIM: Not a typewriter
[Nexus 7 Q&A, Help & Troubleshooting] AndDiSa:
??? not a typo? The fstrim command should be located in

/system/xbin/fstrim
[Nexus 7 Q&A, Help & Troubleshooting] Skyrocketing:
It's not a typo. The error literally says "Not a typewriter" :/
[Nexus 7 Q&A, Help & Troubleshooting] steliosamos:
I am tired with the lags in lollipop. Is there any noob guide to format my tablet in f2fs and install any f2fs-rom(like rastapop)?
[Nexus 7 Q&A, Help & Troubleshooting] bhorstmann:
It's pretty easy. I just did the same thing myself and didn't find a "definitive guide". Just use NRT (nexus root tools) and it will unlock your tablet, install TWRP, and superuser and busybox. Then you just boot into TWRP, and format the different partitions F2FS, then install the zip file that you put on the sd card.

I installed SlimKat. I know it is kitkat, but it is extremely fast and battery efficient.
[Nexus 7 Q&A, Help & Troubleshooting] namhuy:
5.0.1 feel the same as 4.4.4 to me.

Nam Huy Linux http://www.namhuy.net
[Nexus 7 Q&A, Help & Troubleshooting] garryboy:
Im running slimrom lollipop. Ive formatted f2fs partitions. The lag is still awful. Ive just went back to slimbean 4.2.2 and man alive its flying. No lag at all.

Alas its working as it did when I first bought it.
[Nexus 7 Q&A, Help & Troubleshooting] dalanik:
Had awful lag. Not just lag, it took like 20 seconds to launch some apps!!! Really unusable. But I installed manually from factory images w/o wiping data (userdata) partition. All hell broke loose. I couldn't uninstall Xposed etc. so I did factory reset. At least apps didn't crash, but slooooow as hell. Now I did wipe everything with Google bat in factory images and am waiting to finish restoring apps fro store.... keeping my fingers crossed. Seems better because there is no lag and it is installing in background but who knows....
[Nexus 7 Q&A, Help & Troubleshooting] kalda01:
I upgraded to 5.0 via OTA update and then did factory reset.

The lag is very bad and device is practically unusable.

Is flashing a factory image might help?
[Nexus 7 Q&A, Help & Troubleshooting] steviemch:
I always flash the factory images but found 5.0 started to lag after a week or so. Flashed Frank 5.0.1 ROM and the Linux-tegra kernel and the device is running fantastic.

Sent by neural subspace transceiver node.
[Nexus 7 Q&A, Help & Troubleshooting] cptsashimi:
I've found everything I've tried has started to lag again after a week or so. 5.0 and 5.0.1 based. Let us know how Frank is after a week or so.
[Nexus 7 Q&A, Help & Troubleshooting] steviemch:
I've actually been running Frank for 10 days now with no degradation in speed or usability. Let's hope I haven't just jinxed it.

Sent by neural subspace transceiver node.
[Nexus 7 Q&A, Help & Troubleshooting] cptsashimi:
Ha. Hope not.

When I get a chance I will try Frank then.

Thanks.
[Nexus 7 Q&A, Help & Troubleshooting] 19dragon98:
For Frank you intend SlimLP ROM ?
[Nexus 7 Q&A, Help & Troubleshooting] Dark Jedi:
Just installed slimlp f2fs ROM on my tablet and by far its the quickest out of all the lolli ROMs I have tested so far. Only lag I get is on the marvel champion game but I think that was because my max speed was 13 so I bumped it up to 16 to see if it takes care of the lag. Other than that no lag that I can see has popped up so far. This has given this old tablet a new lease on life and kinda don't want the N9 but promised my son he could have my N7 because of his tab2 is a worthless piece of crap and he needs a new one. Decisions decisions lol.
[Nexus 7 Q&A, Help & Troubleshooting] AgusL:
I made a clean install, but it was painfully slow... I ran fstrim on /data /system /cache and now it is better, but Chrome runs really slow since I updated, it is always freezing and stop responding. Any of you have this bad performance with Chrome too?
[Nexus 7 Q&A, Help & Troubleshooting] AndDiSa:
Yes, chrome is taking many resources and sometimes is even not able to start, especially when there are other applications held in the background. In those cases I am closing them all and then the performance is much better again.

I noticed that there are several factors which cause lags:

- too many processes /applications started in parallel

- too few space left on the device (< 3GB lows down massively)

- no fstrim for some time

this is true especially when your device has the faulty memory chips built-in.
[Nexus 7 Q&A, Help & Troubleshooting] AndDiSa:
You should update to 5.0.2 as fast as possible ... performance is back again :)
[Nexus 7 Q&A, Help & Troubleshooting] mohcho:
X1000. I had the 5.0 OTA update and it made my N7 unbearable and unusable. I had to revert back to a stock 4.4.4 using the Wugs Toolkit. Just updated to 5.0.2 just to give it another try and it's like brand new again. Installing all my apps again and am able to enjoy my N7 again.
[Nexus 7 Q&A, Help & Troubleshooting] SLHQC:
Did a dirty flash of 5.0.2 using wugfresh's toolkit. Good as gold. No lag at all yet!
[Nexus 7 Q&A, Help & Troubleshooting] AndDiSa:
Why so complicated?

fastboot flash boot boot.img

fastboot flash system system.img

does the trick (after extracting them from the .tgz)
[Nexus 7 Q&A, Help & Troubleshooting] ferossan:
There is not even need to flash the ".img" one by one.

Just flash the zip:

fastboot update image-nakasi-lrx22g.zip

See my post here:

http://xdaforums.com/showpost.php?p=57654658&postcount=47
[Nexus 7 Q&A, Help & Troubleshooting] khaytsus:
Unless you don't want to wipe data? Then you flash individually.
[Nexus 7 Q&A, Help & Troubleshooting] ferossan:
If you previously didn't erase the data with: "fastboot erase userdata"

You will NOT loose the data if you flash the zip without the -w option. This way:

fastboot update image-nakasi-lrx22g.zip

You WILL loose the data if you flash this way:

fastboot -w update image-nakasi-lrx22g.zip
[Nexus 7 Q&A, Help & Troubleshooting] Leraeniesh:
Feel like I'm the only one not seeing an improvement here...
[Nexus 7 Q&A, Help & Troubleshooting] hasenbein1966:
Flashed back from SlimLP to stock 5.0.2 with Lean Kernel.

Wonderfully smooth and - yes! - snappy!

Clocked even down the kernel a bit (102 MHz min, 1300 MHz max) to preserve battery. Great standby battery also.

By far the greatest and most consistent LP experience to date.
[Nexus 7 Q&A, Help & Troubleshooting] PunishedSnake:
hows stock 5.0.2? Performance wise
[Nexus 7 Q&A, Help & Troubleshooting] bhorstmann:
EDIT: sorry I posted in the wrong thread.
[Nexus 7 Q&A, Help & Troubleshooting] hasenbein1966:
Can't you read? I just wrote about it 1 posting before... *rolling eyes*...
[Nexus 7 Q&A, Help & Troubleshooting] cpvm:
Mine it's even faster with 5.0.2 stock.
[Nexus 7 Q&A, Help & Troubleshooting] AgusL:
5.0.2 is much better, not perfect, but a lot better than 5.0.

One thing I notice is delay in the animation in general. They are all fluid, but they take up to 1 second sometimes to start.

Another thing that never happened before Lollipop is that when I'm listening to Spotify (online streaming) I get random freezes in audio.
[Nexus 7 Q&A, Help & Troubleshooting] PunishedSnake:
No need to convert to f2fs?
[Nexus 7 Q&A, Help & Troubleshooting] hasenbein1966:
You can't convert stock ROM to F2FS.
[Nexus 7 Q&A, Help & Troubleshooting] PunishedSnake:
I meant no need to convert to f2fs for performance...
[Nexus 7 Q&A, Help & Troubleshooting] dalanik:
OK, after complete erase and reinstall it is MUCH better, but still a bit slower than KK. Also did full wipa and updated to 5.02 and it is OK. So all my problems were because of "dirty flash"....