yashsingh1/xdaforums huggingface dataset:
[Nexus 7 General] azoller1:
Man I'm right there with you, ever since my 4.2.2 upgrade my nexus 7 is also very sluggish for simple tasks, like when I'm playing music and then I try browsing the internet, takes about 10 seconds to open the app and doesn't start loading a website for another 5 seconds, I remember cookies and cream on 4.1.2 and it was super smooth and great multitasking, will downgrade tonight and go back to the awesome smoothness and how the nexus 7 should run
[Nexus 7 General] azoller1:
does anyone know what the smoothest android 4.1.2 rom was?
[Nexus 7 General] dangnhap01:
SmoothRom and GlazedBean

I'm just looking for 2.54 PA,its no longer on goo

and i just wandering if 4.1.2 got better onscreen time
[Nexus 7 General] azoller1:
Yeah I'm running the latest glazed ROM way smoother than 4.2.2 and battery is just as good also maybe a little better
[Nexus 7 General] jayfkay:
After days of searching i found an old backup of PA 2.54. Very snappy and nice. Since i used PA 3.X for moths, Android 4.1 is very stable and the battery runs much better.
[Nexus 7 General] DarkDvr:
PA? Which ROM is that?
[Nexus 7 General] FitAmp:
Paranoid android
[Nexus 7 General] jayfkay:
Also got much better wlan signal. On 4.2 many drops every day.
[Nexus 7 General] zivan56:
I had to downgrade as well, it was unusable with 4.2. By unusable I mean it would sometimes take 10-15 seconds to respond to a touch (it would look like its frozen). I even avoided installing any apps except gapps for a week and still had the exact same issue. 4.1.2 fixes all these problems.

My ancient HTC HD2 with 4.2 flies compared to the N7...there is something seriously wrong with 4.2 on this device.
[Nexus 7 General] Djabolic:
I just downgraded my Nexus 7 to GlazedBean 4.1.2 rom without changing the bootloader. I have to say response times are nearly halved on everything. Recent apps list displays immediately without blinking, home button takes me to home without any delay etc. It looks like they broke the Android a little bit when they're developing 4.2

Plus; Damned bounce back bug on home screen does not exist in 4.1.2, It registers all of my swipes as supposed.
[Nexus 7 General] bftb0:
A proper comparison of the two would be fresh install versus fresh install, not fresh install of a reversion against an old, cruft-laden install that possibly went through multiple OTAs and might even have partially corrupted file systems plus the cumulative effects of application/system errors.

It goes without saying that the comparison should also have an identical set of market apps installed.

Just sayin'.
[Nexus 7 General] DarkDvr:
Well it was a fresh install with system, cache, dlv cache, data and sdcard formatted. I didn't update bootloader, since I prefer not to, unless nessesary.

Regarding apps - they were identical, since I just went ahead and used titanium backup to backup/restore apps when downgrading. Same apps, twice the responsiveness.
[Nexus 7 General] qaz2453:
I hope 4.3 fixes all the lag issues coz I don't want to downgrade to 4.1.2
[Nexus 7 General] bftb0:
When you say "it", do you mean both the 4.1.x and 4.2.x trials, or only one of the two in the (paired) comparison?

Human nature being what it is, I suppose that a lot of folks roll along (OTAs, various app failures, power-crash reboots, whatever) until things get unbearable, and only then go to the effort of a complete re-install. And then *voila!* things are all of a sudden much, much better. There are two germane questions that can be asked at that point:

1) Would the same improvement have been observed for a fresh install of the *existing* OS release (making sure to erase and re-format the file systems, just as was done with the reversion procedures)?

2) The observation of massive "lag" is certainly not observed by all users of a given release (pick any release you please); this suggests that the observed behavior is due to a particular set of conditions (hardware variants or software load or both). So, what exactly are the (generic) class of things that trigger the syndrome?

- 3rd party Launchers?

- Data intensive apps (e.g. E-mail/messaging/social apps with massive local caches) ?

- Use of live wallpapers?

- Use of widgets?

- Use of background streaming I/O apps?

- Other?

I don't think there is any (reasonable) person who will maintain that a fresh install of 4.2.x exhibits massive delay/lag problems in comparison with 4.1.x with zero user apps installed. This suggests that there is some combination of conditions that causes the symptom to emerge - possibly even a whole bunch of unique conditions that are completely different from user to user due to different usage profiles. Some of which might be due to the kernel/OS, some which might be due to an interaction between a poorly coded app and a change to a framework implementation, or thousands of other possibilities.

I'm not denying anybody's experience - I believe they are faithfully reporting what they experienced. It's just that software is just so damn brittle in general that performance issues can be - and usually are - traced to the tiniest little detail.

In order to identify those tiny details through comparison experiments, you have to be very careful with the way that the experiments are set up ... that's all that I'm saying.

cheers

http://developer.android.com/tools/help/systrace.html

http://developer.android.com/tools/debugging/systrace.html

.
[Nexus 7 General] DarkDvr:
Man, dat wall of text =) Well, here's mine! =)

Briefly: I installed 4.2.2 fresh, when it was released, with wiping. Same with 4.1.2 downgrade.

I've been flashing stuff for a long time, and know a difference between system bogging down due to data/cache build-up, or due to some rogue widgets/apps. I have nova launcher with only 1 screen with only 1 widget (qclock). Also, very few apps, I mostly browse internet, watch youtube and check twitter on N7, that's it. I constantly check my wakelocks and overall battery usage for anything that would consume too much resources, and would delete anything that does immediately.

Due to that, I am pretty certain that overall system lag/reduced responsiveness is caused by the 4.2 build itself (be it broken scheduler in the kernel that's too dumb to prioritize properly), or some extra feature of 4.2 itself that is being addressed/checked/updated too frequently and on a constant basis, or who knows what... but the problem is definitely there.

I've been using 4.1.2 for couple of weeks now - same exact set of apps, same exact usage. MUCH less lag, not a doubt in my mind.

I'll test out CM10.1 just for kicks, since they got their own kernel, and some features removed/added. Curious if lag still remains or not. I'll report back here.
[Nexus 7 General] Djabolic:
I only upgraded to 4.2.2 (with stock images) and then rooted my Nexus 7, flashed nothing else between after I got it. So you can call my Nexus 7 a pretty clean one.
[Nexus 7 General] gc84245:
Single user or multi user?

Sent from XDA app
[Nexus 7 General] armada786:
I can tell you Google bungled something in SystemUI in 4.2.2 because it effects my Gnex and Iconia. 4.1 on both had no issues. I'm hoping it'll be a lot less noticeable on the N7.
[Nexus 7 General] DarkDvr:
Single user for me.
[Nexus 7 General] Djabolic:
Same here.
[Nexus 7 General] gc84245:
Hmmm, that's strange. I don't know what 4.1.x was like but I am running 4.2.2 and it is very smooth.

I did a factory reset just before updating. I did notice some lag at first, so I decided to take a minimalist approach and get rid of stuff I didn't really need so I did the following

1) Disabled Google Currents (after reading that this was a major source of lag) and a few other pre-installed apps I didn't need

2) Uninstalled apps I didn't really need or use

3) Got rid of almost all my widgets, except a small one for brightness and battery

4) Removed second user

5) Went back to stock launcher

6) Turned animations off in settings

7) Set background process limit to 4

8) Turned off Wi-Fi when screen is off (to save battery, not so much to fix lag)

After this I noticed a huge improvement. Needless to say I'm convinced that in my case the lag was due to running too many apps/widgets. However if you're really only using a few apps and one widget then I'm stumped.

Sent from XDA app
[Nexus 7 General] DarkDvr:
Thanks for sharing your experience.

I dunno, I wouldn't want to sacrifice all of that to simply get a responsive tablet. Imho, that's insane limitation of functionality and pleasure of usage simply to get it to work as designed..

In your shoes, I'd try to run 4.1.2 WITH all those things installed/enabled, I'm willing to bet you'd get same performance.
[Nexus 7 General] gc84245:
I agree, I mean what's the point of having widgets if you can't use them without slowing down your system? On the other hand, the stuff I removed I never really used anyways, so it's not a huge deal for me. Others who like having a lot of apps/widgets might be better off on 4.1.x, I don't know. Anyways, I have no plans to try 4.1.x, I have my tablet set up nicely on 4.2.2 with all the apps I need and I find it to be very smooth.

Sent from XDA app

---------- Post added at 11:15 AM ---------- Previous post was at 11:09 AM ----------

I remembered a couple more

9) Disabled auto brightness

10) Deleted unnecessary files. I have over 3 gb free on an 8 gb model, and simply stream my music and videos

Sent from XDA app
[Nexus 7 General] DroidOnRoids:
This is a prime example of why newer isn't always better. 4.2.2 itself could in fact be the reason why the Galaxy S4 was receiving random lag complaints and why I am experiencing slow downs on 4.2.2 roms. I'm going to try 4.1.2 again.

EDIT: If anyone wants CM10 (4.1.2), here is the stable build: http://get.cm/?device=grouper&type=stable
[Nexus 7 General] reaverryuu:
Hi guys, when you mention that 4.1 has a better battery than 4.2, how many screen time did you got? I'm on stock 4.2.2 and got 7 hours screen time (wifi mostly off, 4 hours gaming, the rest is some instagram and reading). Will I got a better screen time if I downgrade?

Thanks
[Nexus 7 General] H3adru5H:
You people are crazy. CM 10.1+m-kernel is amazing. Device is entirely smooth and lag free with touchdemand/1.5GHz, 516 GPU OC with fsync off. Try it.
[Nexus 7 General] rani9990:
You guys must be running iPads if you're running smoother than this. Prime ROM.
[Nexus 7 General] Cor-master:
I wiped and put a clean install of cm10.1 and that fixed all my lag issues for about a week, which was longer than anything else I tried but the lag still came back. I'm going to wait until 4.3 comes out, then I'm going to wipe and run the factory image. If that doesn't fix the lag, I'm rolling back too. This lag issue is ridiculous, I'm willing to bet money that's the reason why HTC chose 4.1.2 for the one instead of 4.2.2.

4.2 feature wise is easily the most complete version of android ever, but when I comes to performance and stability, it's about on the same level as honeycomb
[Nexus 7 General] HAK Devil:
This thread inspired me to go back to 4.1.2 as well after being fed up of all the lag on 4.2.2. Back on cookies and cream now and man have I missed this snappiness. Just to make sure it wasn't placebo I also did a complete reformat and installed 4.2.2 again but there is still a clear difference to me in overall fluidity. Sticking to it now, I feel that 2nd gig of ram is needed to run 4.2 well
[Nexus 7 General] Macmee:
I'm not sure what all the fuss is about, I've never experienced any issues with 4.2.2. Running stock ROM and Franco kernel R61, single user.
[Nexus 7 General] kmare:
Over in the galaxy nexus forum a bunch of us are making the switch back to 4.1.2 too. Huge improvement
[Nexus 7 General] hasenbein1966:
I'm also on 4.1.2 (SmoothROM with M-Kernel, 1.2 GHz max. speed, interactive governor). The thing is SO smooth and stable, and the battery time is so great, I won't ruin the experience by messing with 4.2.

As long as there are no new features I long for having, there is absolutely no need to upgrade. We'll see what 4.3 and 5.0 bring...
[Nexus 7 General] TheNerd:]:
Xenon HD or Sentinel Rom with Franco's r61 with osmosis' tweaks = best combination of battery and performance

---------- Post added at 06:10 PM ---------- Previous post was at 06:09 PM ----------

I get 2&1/2 days of usage with 6%1/2 hrs screen on time

---------- Post added at 06:11 PM ---------- Previous post was at 06:10 PM ----------

All 4.2.2

---------- Post added at 06:15 PM ---------- Previous post was at 06:11 PM ----------

Best is completely going back to stock, then relocking bootloader, then factory resetting in stock. Then reroot and reunlock, then boot into recovery, wipe system, data, cache, dalvic. Then flash rom. Flash kernel. Flash gapps. Then wipe cache and dalvic. Let the rom/kernel settle in and boom, amazing battery/performance
[Nexus 7 General] kesongpinoy:
just a bit OT guys, but do you think downgrading can help me regain my NFC functionality? I never used NFC before but I recently got a N4 so I wanted to pair it with my n7. Unfortunately, I cannot activate NFC in settings and the option is always grayed out, even if I reboot. I tried flashing different ROMs and I still cannot activate NFC no matter what
[Nexus 7 General] Anon1992:
I've been experiencing the lag in every custom roms including stock on 4.2.2 except official cm that seems to be lag free to me.
[Nexus 7 General] gc84245:
I don't know but nfc works fine on my device running 4.2.2.

Sent from XDA app
[AT&T HTC One (M7)] varunkumars:
Hi guys, have any of you tried to peel off AT&T logo of the "One" ? Let me know your suggestions. Thanks in advance for your suggestions.
[AT&T HTC One (M7)] xXxG0dzRAgexXx:
Can't do it. It's etched in to the device.

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[AT&T HTC One (M7)] deadeye0908:
Actually got a double win for this.. installed notification toggles then set priority level to 1. Now I got quick toggles and and no at&t :) here's the app

https://play.google.com/store/apps/details?id=de.j4velin.notificationToggle

---------- Post added at 07:20 AM ---------- Previous post was at 07:17 AM ----------

Sorry thought u ment the at&t on the notification bar..
[AT&T HTC One (M7)] sakalu:
Can't do it.
[AT&T HTC One (M7)] theledman:
It's lasermarked. The only way you could get it off is if you had access to a sand/bead blaster. Even then, probably not worth the trouble.
[AT&T HTC One (M7)] uppercasecs:
Maybe

We remove HP etching with 91+ rubbing alcohol purchased from Walgreen's. If you give this a try use a very light amount quickly as if left on it will fade the paint on the back. Use a q-tip and lightly run it across the area and see if begins to come up.
[AT&T HTC One (M7)] mywingtophone:
its not etched , just get an apple sticker and put in on top of it.
[Android Q&A, Help & Troubleshooting] uli4351:
Hello everyone.

I have this tablet Microlab Spektru 1.2 Ghz RK2918 , 512 Mb DDR3 Ram. Not sure if it had 4.0.

Actually it's not my tablet, my grandpa' bought it, anyway he noticed that the Wifi signal was very bad and someone told him that he could use a micro-sd for updating.

So he turned off, put the SD and "installed" android again. after this android started normally but the Touchscreen not working.

Also I found some firmwares, but i Still can't get into recovery mode, the tablet doesn't have a Home button. Just Up, Down Volume and Power.
[Android Q&A, Help & Troubleshooting] neu - smurph:
Try pressing the power key whilst holding the volume down key down. Failing that try the volume up key. These are the normal recovery button combo's for RK tablets.
[Android Q&A, Help & Troubleshooting] iamthex:
I enter recovery mode on my rk2918 tablet when I press menu and power button at the same time.

Sorry for my English.
[Android Q&A, Help & Troubleshooting] dcbakkk:
I have flashed Oma's recovery, then my rk2918 tablet is brick，bootloop is recovery, and E: Can't mount /Cache, Error mounting /system /data etc. partiton.

I'm ready to buy a microsoft surface pro 2. Give up android.
[Droid Incredible Q&A, Help & Troubleshooting] finitary:
So, my wife's Droid Incredible, went into a bootloop. It was completely stock, no modifications done, but while she was using it, it just started rebooting over and over again..it won't get past the first splash screen without rebooting.

At first, I thought it might have overheated, but evidently this is not the problem.

So I've been messing with it..I am able to get it into hboot (version 1.07), which I was able to unlock through hdev. I tried flashing CWM through fastboot, but the phone won't boot into recovery.

So could someone direct me to how to fix it? If I could put a stock image on the sdcard that hboot would install, would that work? Where would I find this image?

Thanks in advance.

Here is the information in hboot:

UNLOCKED

INCREDIBLEC XC SHIP S-ON

HBOOT-1.07.0000

MICROP-0417

TOUCH PANEL-ATMEL224_16ab

RADIO-2.15.10.12.20
[Droid Incredible Q&A, Help & Troubleshooting] Pons:
So you "tried" flashing CWM through fastboot. What exactly did you do, and what, if any, was the error? And how are you trying to get into recovery?

If you flash the recovery correctly, you should be able to get into recovery.
[Droid Incredible Q&A, Help & Troubleshooting] finitary:
Okay, I did flash the recovery, with fastboot flash recovery. To boot into recovery, I am going back to the bootloader and selecting recovery. What happens is the device reenters bootloop at that point.

Update: I have now tried using PB31IMG.zip from here http://dinc.does-it.net/Stock_Images/4.08.605.2/ by putting onto Fat32 sd card which then does get installed in hboot. When trying to boot the system, the bootloop is unchanged. However, now when I try to boot recovery, instead of looping, the boot freezes on the htc incredible splash screen.
[Droid Incredible Q&A, Help & Troubleshooting] Pons:
Sounds like your recovery flash didn't take. Try putting this file on the root of a FAT32 formatted sdcrard, and then try to get into recovery.

http://xdaforums.com/showpost.php?p=39092075&postcount=167
[Droid Incredible Q&A, Help & Troubleshooting] finitary:
Thanks for the help. So I went into hboot, hboot found the file, reflashed the recovery, then tried to boot into recovery but the same bootloop occurs. The splash screen htc incredible splashes, it goes black, vibrates, and splashes again until I pull the battery.

Is there anything else to try? Could I somehow replace the bootloader?
[Droid Incredible Q&A, Help & Troubleshooting] finitary:
So I've tried a few more things now, still no joy -- using fastboot, I issued the following commands to flash an RUU

fastboot oem rebootRUU

fastboot flash zip <name.zip>

However, the flash always fails.

I have also tried to use fastboot to erase the recovery.

fastboot erase recovery

Strangely, it fails when I do this, although it reports that it works when I tell it to flash a recovery image. Although I still can't boot into recovery.

However, I finally got hboot to flash one of the system roms by putting it on the sdcard (4.08.605.15 ) . Strangely enough, this worked only after I relocked the bootloader with fastboot. However, after this the situation remains unchanged.
[Captivate Q&A, Help & Troubleshooting] CSaab900:
Alright, you guys might be sick of me, but I have a great deal of respect and appreciation of you skills and knowledge thus far. I flashed my cappy to CM10.1 this morning. After flashing, it seemed to load perfect. But two issue:

First, I flashed without my SIM card installed, as most of what I read said to do it in this manner. However once CM booted for the first time, it never said anything about "no network support"or "insert a SIM card for service" which I've seen on phones in the past when there's no cell connection. I shut down the system, inserted my SIM, then powered it up. The phone did not recognize a SIM card, nor give me any kind of error message. I put the card in upside down once, and it told me that it couldn't read it. It's as though the SIM drivers are missing. I know the SIM card is in good standing, because I had to grab my old Palm Centro to take to work. I popped the SIM in the back and sent texts and made calls all day long, no issue. Any ideas on why the i897 isn't reading it?

The next one is a reboot issue. The phone is rebooting in "sleep mode." Once the screen goes dark, it'll reboot after it sits. If I put it to 30 minutes before sleep, it'll stay on the whole time without rebooting. it's only in sleep. I saw there was an issue with some lower serial #ed phones, and mine does have this lower #. But it never did this in Gingerbread. NEVER! CM10.1 issue?

Thanks in advance! I hope these issues can be worked out, because I really like this phone and CM is awesome!

Courtney
[Captivate Q&A, Help & Troubleshooting] CSaab900:
Since I'm getting zero answers, I guess I'll have to reflash. Should I reflash CM10.1, or flash it to stock first, then CM10.1 again?

Courtney
[Captivate Q&A, Help & Troubleshooting] BWolf56:
Go check your IMEI, if it says 0 or unknown, you'll have to flash back to stock, backup your EFS folder (with a root explorer) and then work your way back up to CM10.1. If you get the issue again, you'll be able to replace your EFS folder with your backed up one and it will that problem.

Other thing, make sure your APNs are matching your carrier's.

Now as for the reboots, so many things can cause it. I'd make sure not to have ''deep sleep'' turned on, many phones reboot cause of it. Next thing, I'd try different governor and scheduler (towards performance). Next would be to try another kernel for JB (I believe there are 2 to choose from that aren't the CM one). and finally, if all else fails, you can try upping your voltage by like 50 each steps.

P.S.: A simpler solution would be to go back to stock and try another JB ROM.

P.S.S.: It can take some time to get a reply back to your questions as this phone is getting pretty old and we aren't many techs to still support it. That being said, it still gets a lot of love in the Dev side.
[Captivate Q&A, Help & Troubleshooting] m1batt1:
I'll add one more thing to Bwolf's suggestions. If you try reflashing or go back to stock then back to CM or whatever else and it's still not working you might look at whether there is a modem installed. CM should come with a modem but for whatever reason it might not have flashed so flashing a modem could fix the problem. There is a sticky in the development section where you can get any modem available for the cappy. Good luck and hopefully you'll get this figured out.
[Captivate Q&A, Help & Troubleshooting] BWolf56:
Good point, let me add to this as well :p

You'll have to flash a I9000 modem (from the modem thread), they're compatible with the I897 on JB.
[Captivate Q&A, Help & Troubleshooting] laughingT:
CM10.x has its build properties set to allow you to operate without a SIM card. So, there may not be any error message if there is no sim card.

Have you tried turning off wifi, powering down the phone, removing the battery for a few minutes, clean the sim card with some contact cleaner, let it dry, then reinsert SIM before inserting the battery. Then power up and wait about 10 minutes. Just let the phone sit there. If you can make a phone call or access Internet via cellular data, then the SIM is good.

To BWolf's comment re IMEI, occasionally it happen that there is a number shown in about phone, IMEI, but it is the wrong IMEI number. While you have the battery out, check the phone label under the battery. write the IMEI number on piece of scratch paper. When you reboot, check the about phone, IMEI, to see that it is correct.

Sent from the wholly ROMin' empire. SGH-I897 CM10.1