yashsingh1/xdaforums huggingface dataset:
[Sony Xperia Z Ultra] kevin Hansjaya:
hi iBuzman, i'm sorry bother you , can you help me my phone Zultra can't turn on after i tried instal deodexed.

i'm already try conect to pc hold power and vol up but always get error usb debug off.

please help me
[Sony Xperia Z Ultra] esmaddy87:
do your c6802 in state of UB or LB?

back then, i also use c6802 also. and without unlock its bootloader first, i'm happen to have the same problem like you...

but, after UB, my device works great with this ROM... now, after my z ultra c6802 broken into pieces, i buy new one and choose the LTE model...and, still use this rom... because, this ROM works great flawlessly... :)
[Sony Xperia Z Ultra] seking:
mine is locked bootloader

Mine is LB. I dont want to unlock the bootloader. since the title itself says LB/UB i didnt bother unlocking the bootloader.

I also thought this is a great rom to have.:)
[Nexus 7 General] filipovic103:
Hello,

I've updated my Nexus 7 first-gen recently to Android 5.0 and since than have spent a good amount of time using it. I use the tablet for work and fun through out my whole day, so snappiness is a big factor for me. With the 4.4 update, the tablet just got a lot slower, sometimes I needed to wait for a few seconds before I am able to kill a task. Clearing cache didn't fix the issue.

Made me think about that 5.0 update a lot. (Note that I actively started using the tablet only a few months ago. I had it for 2 years but broke the screen 3 weeks after buying it and only now I decided to repair it.)

The 5.0 update it self took a good 45 minutes. When I loaded it up for the first time, man it was buggy, I couldn't complete a single task without it bugging out. All of the Apps and settings were there untouched. The first thing I did, was go into recovery mode and cleared the cache. Then I cleared the cache for every individual app. And that boosted the performance by 100%. Next, the animations, I cut them down to 0.5x and turned on GPU rendering (just for testing) turns out that helped out a lot. I didn't notice a difference in load times, like some articles suggested.

However there are a few quirks, the sound lags behind the slider, so if I crank up the volume to MAX it will take a moment to do so. I often found my self having to tap the apps drawer button more than once to open it. And the killing of tasks is not as easy as before, now you have to slide from one side to the other in order to kill a task you can't just kick it to the side. Also, the auto-brightness is really aggressive so I disabled that. The WiFi status, when you click on a WiFi connection seems to be broken since in portrait mode all the letters are separated, and at first I couldn't make out any of it. And the biggest downer for me is the keyboard, I think they didn't do any favors with it. I have larger thumbs and it will take some time getting used to the keyboard. These are all small things, but they affect my experience.

Now the good stuff, where do I begin? The interface, it's great I like the design and the contrasts. Performance, I guess that's the biggest question since this is not exactly cutting edge hardware. To summarize it, it's good. I haven't had any issues since I cleared the cache, apps are running as they should, games as well, multitasking is as expected, fluid. Later on I switched the animations to 1.5x and 2.5x. no issues there. Boot up times, something completely irrelevant to me, but since there are people that would like to know, it takes around 30-40 seconds to boot up. However, Chrome is still the biggest enemy. If you want something to make your tablet miserable and make you wait and get frustrated because of it's unresponsiveness, you won't need to search far, just get Chrome.

All in all, the update was a step up, and an improvement.

These were my 2 cents on the subject. Hope it was of use to someone.
[Nexus 7 General] alphabets:
thanks for the review. I also updated a few days ago when the ota came through. So far, I'm experiencing terrible lag. I don't have anything stored on the N7 and don't have many apps. There is a ton of available storage on my 32gb. I did a factory rest about 3 months ago, as I like to every now and then to give the N7 a fresh start. I think I may have to yet again and keep my fingers crossed. Unfortunately, it's unusable at this point.
[Nexus 7 General] AuroEdge:
My experience has been variable, but not unexpected. In the past I have had issues with installing OTAs resulting in poor performance -- sluggish response to touch, certain apps immediately displayed odd lag, etc. Going from 4.4.4 to 5.0 was no different. So, I performed a factory reset and the effects were stark. The performance is exactly where you would expect it to be for Lollipop i.e. it is smooth.

HOWEVER, all is not well. There seems to be a set of problems that I suspect is related to Lollipop utilizing the ART runtime. Certain apps, even before performing a factory reset, were really really slow when running the first time. I have experienced this before: when I tried out ART when it became available on the Galaxy Nexus. Two common apps this occurs with are Facebook and Mint. Who's to blame? The app developers? Google? Don't know but hopefully these issues get resolved soon.
[Nexus 7 General] filipovic103:
Ugh, that is quite an issue. Have you tried wiping the cache? You should check your usage, you might be able to find out what's hogging your system, unless it's the OS it self.

I also tried out the ART on some devices, mine were not even supported. There were a lot crashes but I also noticed some performance improvements.
[Nexus 7 General] iolinux333:
Does factory reset also wipe the cache?
[Nexus 7 General] DoNuT_1985:
My Lollipop experience with my 16 GB WiFi-only Grouper isn't as good as yours. First, I thought I messed something up by rooting it with NRT, but after a manual factory image (flash-all.bat failed out of the box) without root it didn't get any better.

Most time its not as responsive as my N5, I've already had 1-2 minute hangs followed by hung apps (Google Search/GNL, system in most cases) and heavy lagging under most conditions. From time to time its getting close to 75-80% of the smoothness experienced on the N5 (which has better hardware, of course).

I have no idea what went wrong, I've already enabled 2D GPU hardware acceleration, but I'll definitely wipe the cache in recovery once more - you never know...

Thanks for the extensive review - Chrome is just a pain in the a** if you don't have at least 2 GB memory available. :D
[Nexus 7 General] filipovic103:
I suggest wiping cache, because you get to keep your apps and settings.

One thing I forgot to mention is that after the cache wipe the tablet was fairly fast but I also went into Settings > Storage, and noticed I have a lot of app data which frankly shouldn't be that much. I then went and cleared cache manually on every app and as it turns out, I managed to scrape off another 1GB there. So, I'm not sure how that would affect the overhaul system performance but it sure helped me get the snappiness I have right now.
[Nexus 7 General] DoNuT_1985:
Looks like wiping the cache had an impact on performance. I wasn't able to play around much, but it definitely felt faster after first reboot. :)

Too bad I just noticed my user partion only had 6,x GB (8 GB image obviously) - there are so many ways you could f**k up an Android system - so I'll have to format user data once more, approximately the third or fourth time in the last week. :D :D :D

Sometimes I understand why people fancy those awful Apple devices, but let's hope the speed boost persists.
[Nexus 7 General] KiljoyMcCoy:
Go in and delete all the apps in system folder that can be installed from play store and are not needed. After installing the lollipop images you have 11mb in system which seems to be main cause of lag. I freed up like 160 mb and no lag or stuttering. Not sure why google kept things like dialer and other things unusable on the tablet in there.

Also get now launcher and delete launcher.

For even better performance get faux kernel (Set kernel up to his recommendations) and/or install aosp 5.0 F2FS with minimal 5.0 gapps.

Oh I do have a problem with WiFi being weaker on 5.0 though.
[Nexus 7 General] phrozenstare:
i am getting terrible lag too. last week i updated with the OTA file. wiping the cache improved performance but only for a short time. i guess eventually if ii want the speed back on my 2012 nexus 7 i am going to have to root and go back to jellybean
[Nexus 7 General] DoNuT_1985:
Thanks, that sped up things significantly. It's definitely a memory problem, because event on full stock setup you're getting glances of Lollipop smoothness.

But WTH is Google delivering a potentially lagging factory image? Couldn't they just resize /system by default in order to fit in all apps nicely? Well, that's Android - if it doesn't work, you have tons of options to fix it. :D
[Nexus 7 General] dc2222:
After my old N7 screen broke, I got a new refurbished 16GB unit for about US$100.

Had some bootloader issue earlier while trying to flash lollipop, and had to revert back to 4.2.2. Then it got all the OTA up to lollipop, and is running really well since.

Loving it now, better than most non-lollipop newer tablets around...
[Nexus 7 General] funtomi:
Lollipop is big disappointment. I hate new notification (double swipe down to access settings)

I am back on 4.4.4 Slimkat rom with Legokernel and f2fs

now is system smooth without lags
[Nexus 7 General] DogzOfWar:
Listening to some of the advice in this thread, I rebooted into Recovery and wiped cache (I did it 3 times, because why not, right?)

In addition, I went into the developer settings and turned OFF "Force GPU".

After doing both of those, my performance seems to have greatly improved (specifically Chrome, which was borderline unusable).

For reference, I flashed the factory image from 4.4.4, and didn't get it OTA.
[Nexus 7 General] iolinux333:
Not any more! I have three new iOS devices and things are far, far worse since iOS 8 dropped. Apple now holds the lag crown. At least with Android you can revert back to earlier versions that worked. With Apple all you can do is whimper at the master's feet.
[Nexus 7 General] khaytsus:
UTTER nonsense. Stop it. System being full affects nothing; it's read-only.
[Nexus 7 General] iifuzz:
Is there a way to disable the storage encryption that is enabled by default? Disabling this apparently had huge performance upgrade for the nexus 6
[Nexus 7 General] hija31:
Swipe once with two fingers.
[Nexus 7 General] rbeavers:
I've done cleaned every thing in this ROM, repeatedly. Hopefully CM 12 will make it work!
[Nexus 7 General] KiljoyMcCoy:
understand what you are saying but after doing so i have no lag.

Have 2 x 2012 and both were lagging. After trying other things i deleted stuff in system and both are very smooth now. Very happy with them.

Even wiped and re installed one and just deleted stuff in system, to make sure it wasn't something else or a combo of things i did prior.
[Nexus 7 General] kalda01:
What advice do you have for non rooted devices ? Is there a way to clean the cache ? my N7 barely moving after the OTA upgrade.
[Nexus 7 General] iolinux333:
Just go into recovery mode and wipe it. You don't need to be rooted. I did it on my bone stock N7 yesterday. Still waiting for OTA 5L though. Grrr.
[Nexus 7 General] filipovic103:
Just to clarify my Nexus 7 is stock. Non rooted. Also I did the OTA update. To clear the cache follow this tutorial: http://forums.androidcentral.com/go...e-nexus-7-2012-2013-cache-partition-wipe.html

(sorry it goes to another forum, but they had the best explained tutorial)
[Nexus 7 General] Norlam:
I am also pretty disappointed with 5.0 on the nexus 7 2012. The performance is really, really bad.

Is there a way to downgrade back to 4.4.4 without wiping the device? I assume simply flashing 4.4.4 factory image via fastboot without flashing userdata.img is not possible?
[Nexus 7 General] AuroEdge:
After a week of having updated and done a factory reset, things have settled. It's strange that there are performance issues early on after upgrading to Lollipop.

Removing files from system apps, a read only area, is one more of those "1 weird trick Steve Jobs doesn't want you to know about" fixes. Don't do it ☺. If anything just flash the factory image and go stock for a while
[Nexus 7 General] dudedevon:
Update

I came from a 4.4.4 Carbon Rom formatted to f2fs. I used the Nexus toolkit to go format all partitions and upgrade to 5.0. On 4.4.4 it felt slow and was barely useable. The GPS constantly lost signal which was a huge issue as I use my tablet primarily for aviation navigation.

With the upgrade it feels like a new device. Its fast, I have all my apps installed, games, movies and it runs incredibly fast. Takes around 40 seconds to boot and is instantly fast.

My advice to everyone is to bite the bullet and completely format your device. Use TWRP, wipe it all. I'm guessing people are having so much lag as they are upgrading from 4.4.4 which is a non ART Operating System to 5.0 which is purely ART without completing a full wipe and you are all running into these issues.
[Nexus 7 General] khaytsus:
It is not enabled by default on the Nexus 7 devices.

Great. But has nothing to do with /system having space free.
[Nexus 7 General] joaopaulo_:
Anyone with laggy has the Facebook app installed? The official and beta, cause freeze and lag in lollipop because this is not optimized for this android version. Uninstall it.
[Nexus 7 General] iifuzz:
I have lag and freezing on everything, it is running like pewp :[

this morning i went to use my tablet and i couldnt even get out of the last app that was open. I had to restart my tablet
[Nexus 7 General] KiljoyMcCoy:
have facebook installed and no lag at all.

even playing newer games no problem.
[Nexus 7 General] sinple:
Those with lag, make sure u have 2gb free space and give it a few days. Mine magically turn very very very lag to just a bit lag. Haha
[Nexus 7 General] KiljoyMcCoy:
I do use faux kernel with Zram enabled. 150Mb. My understanding was Zram did the swaping in the ram.

But i have read a few places that zram can use a file in the system dir. Depending on how it is implemented.

I have not found any info on faux Zram, so maybe that is why it helped in my case.
[Nexus 7 General] DoNuT_1985:
Has anybody tried using Nova (Beta) instead of the stock launcher or GNL?

Feels better - as far as I can tell. Not sure how the Launcher/Search app is structured (is it one big APK?), but it's more bloated than Nova for sure.

My theory is the crappy flash memory performance. Even in 2012, the N7 wasn't matching numbers of most mid-to-top-range devices and 2 years later, it might get painful everytime it can't fetch something from RAM.

I also understand that the /system theory might just be a placebo - given the fact that only 1 MB space left would be enough as long as there's no update that doesn't fit in anymore - maybe it's just the restart that gives you a good feeling about performance? First few minutes after a reboot always felt quite responsive.
[Nexus 7 General] joaopaulo_:
Kernel and ROM?
[Nexus 7 General] DogzOfWar:
Okay, I have previously replied that wiping the cache and turning OFF "Forge GPU" made my tablet much faster. What I just found out, however, was my device was still in airplane mode after traveling. After removing airplane mode, my device is wicked slow again.

I might bite the bullet and completely wipe the whole device. I always get a little nervous about doing that though, although thank goodness for Wug's nexus toolkit to help out.
[Nexus 7 General] KiljoyMcCoy:
1 i have on factory image and using faux v026u kernel with his recommended settings for battery saving settings from his thread.

2nd one i am using the aosp F2FS - All ROM (BSZAospLP-LRX21T-ALL-F2F) using faux v026u kernel with his recommended settings for battery saving settings from his thread.

The 2nd one is the best performing of the 2 so will be switching to the 2nd set up on the first when my daughter is asleep.

The first one is not laggy at all and able to play games with no problem. The 2nd one just performs a lot better.

As side noteFirst one i have deleted the apps in system not needed and 2nd one I used a gapps minimal for lollipop. Both have adaway running and seeder.
[Nexus 7 General] khaytsus:
No. Just no. /system is read-only. If anything out there had intentions of using /system to hold a swap file it's insanely stupid.
[Nexus 7 General] KiljoyMcCoy:
That is my understanding also. I am not a kernel dev but was looking through Zram stuff and came across this info a few times.

I was trying to figure out why it was working better after deleting apps in /system.

I also upgraded 2 more friends N7 2012 that suffered bad lag until I cleared space in the system folder.

So It has worked on 4 diffrenet devices and installing 2 times on one of them.

I am just trying to figure out why it would be fixing lag on the devices or what is fixing the lag.
[Nexus 7 General] SteveC485:
I don't remember just where I read this, but get an app called Lag Fixer by SimoneDev. It is dead simple and self explanatory. Just click three buttons, then click trim. It took a look long time to clean everything up, but I had a new tablet. Do it and leave it alone. Mine took a long time.
[Nexus 7 General] kalda01:
My N7 became usable again only after Factory Reset.
[Nexus 7 General] IndieAragon:
I did a factory reset before flashing Lollipop...even then performance is pathetic...
[Nexus 7 General] DoNuT_1985:
Lagfix/fstrim should already be contained in offical releases since 4.3 (or 4.4 at least), so I don't think it would help, especially only 1-2 days after flashing a fresh userdata image and restoring a few apps at once what shouldn't fragment memory too much, as opposed to months of regular usage with lots of cached data written and so on....
[Nexus 7 General] Wade-0:
Yeah, well, maybe because you did it in the wrong order.

I formatted cache and did a factory reset after updating and the lag was a little better but still pretty frustrating. I was unable to manually issue an fstrim too, something is apparently broken/missing in lollipop. But I let it sit for a couple days because it was such a pain to use, and when I tried it out again yesterday it was (mostly) fine.
[Nexus 7 General] abumy:
Agreed the double swipe needs to be fixed. Went back to kk too because of it mostly.

---------- Post added at 11:28 AM ---------- Previous post was at 11:25 AM ----------

If that is the case, glad to hear it isn't as difficult as I thought:)
[Nexus 7 General] smartjais:
Try doing wipe cache partition as it helped me .. didnt have any issue with the lolipop update after that.

hope that helps:good:
[Nexus 7 General] DogzOfWar:
Okay, I've posted a few messages in this thread with my experiments. I tried:

- re-wiping the cache in recovery after flashing 5.0

- turning OFF "Force GPU" in Developer settings

None of that seemed to make a difference. For my next test, I ran the complete "flash-all.bat" that comes with the factory image from Google. This seemed to have done the trick. Initially, I didn't run the full script but instead cherry-picked tasks (like not doing "fastboot erase userdata"). I also didn't flash the bootloader figuring that I already had that version. But maybe there's some minor fix in there?

Running the full script seems to have made my Nexus 7 2012 Wifi pretty nice and fast. Unfortunately, it really erases everything.

So I would say, if your tablet is slow (whether you flashed the image or got the OTA), try running the full script from Google with no shortcuts. Not a great solution, but it seems to be working.

**** EDITED one minute after ****

Also, I didn't restore all of my applications. I let Google update the official apps, and then have been selectively installing one-by-one instead of restoring all 84 (or whatever it was). Not sure if that made a difference, but something else to try.
[Nexus 7 General] Stresa:
I also did a factory reset before manually flashing lollipop and performance has been excellent. I don't understand how experiences can be so different. I am 100% stock and unrooted.
[Nexus 7 General] aromo:
Maybe it's not the free space but a specific app that you deleted.

Could you give us a list of the system apps that you deleted?
[Nexus 7 General] IndieAragon:
I did the following and now it seems better than before

1) Wipe Cache

2) Delete System app (110MB free now in /system)

3) Installed LagFree (but it doesn't work, unsupported kernel, I'm on stock).

Planning to move to F2FS with custom kernel soon ;)

---------- Post added at 10:59 AM ---------- Previous post was at 10:51 AM ----------

Well, I used NRT to flash Lollipop (did a wipe cache/data before install). Then had NRT install TWRP and root N7. However after freeing up some space in /system (around 110MB free curently) performance has improved somewhat.

Might move over to a custom rom with F2FS.
[Nexus 7 General] AuroEdge:
It's because people are not providing enough details about their device usage. It is the reality I've seen with every Android device forum I've frequented. I did a factory image flash, from Google, and my tablet is flying. The only exceptions are a few buggy apps like Facebook and Mint that don't work well with ART (come on app developers, really?).
[Nexus 7 General] Stresa:
In regards to the Facebook app, try clearing the apps data and cache. Fixed the Facebook issue for me.
[Nexus 7 General] PunishedSnake:
Convert to f2fs huge difference
[Nexus 7 General] DoNuT_1985:
Or is it a general problem with "bloated" apps? I mean, even with cache cleared, Facebook takes more than 100 MB memory (I think, that's due to ART, isn't it?). After a few days of minor usage, there's already 30-40 MB app/cache data, only Chrome's cache tops that, but that's OK for a browser, I guess.

Both are among the laggiest apps (also featuring Maps and Play Music sometimes), all them being quite big packages... so maybe it's not just individual issues and rather a problem with loading "big" apps? Not sure, how the Android model works there, but I could imagine that inactive apps aren't in memory all time long and might have to be fetched from flash or temporary directories from time to time - where poor flash performance could play a role: My N7 does 18 MB/s in AndroBench Sequential Read, a Nexus 6 (according to their Top 10) does 190 MB/s.... practically spoken, 10 times as fast. :eek:
[Huawei Ascend P7] kriticar:
Can this be true?

http://www.lollipop-rom.org/mp3-0/huawei-ascend-p7-6124.html
[Huawei Ascend P7] Max4000:
This is scam. Just don't try to download it.

"Rom size: 128MB"

I loled...
[Huawei Ascend P7] 87insane:
I think its a fake...

Nobody uses cwm in p7.

On xda i cant find anything.
[Huawei Ascend P7] drguild:
It's fake on obviously add new says xda tutorial and that's nothing in this section on it or the other areas for our p7.

As above no cwm on p7 twm is what is used it seems, also he doesn't state model number remember there all imcompatible the roms as all the l10 people are unhappy that's no Dev emui 3 ROM or that device.

The kernel has only been recently released publicly for our devices and you will see any custom rom on this forum is a early test version.

The screenshot is edited KOT49H is the 4.4.2 build number lollipop uses something else and is a white background I'm running it on my nexus 10 right now.

Also emui 3.0 on 4.4 isn't out till next week.

I do hope huawei release a v5 lolipop rom but when or if they will announce it I don't know.

Allot of companies like to sell new devices than update them to the new versions.

These scams have been going round for years for many things not just android Roms where they take something and sightly edit it and put links behind a survey host.