yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Original Development] -Lawless:
Anyone else loose root?

---------- Post added at 02:31 PM ---------- Previous post was at 02:29 PM ----------

Never mind....must enable in Dev options I think.

---------- Post added at 02:43 PM ---------- Previous post was at 02:31 PM ----------

that did it :)
[Nexus 7 Original Development] Rafase282:
It is very slugish on my tablet. Using stock kernel, anything else removes root. So if I want it to be smooth I should go for F2fs then?
[Nexus 7 Original Development] timedroid:
Are you sure? I got stuck on boot with /cache being f2fs.

Actually, it looks like f2fs doesn't work for /data either. It just prompts me for an encryption password.
[Nexus 7 Original Development] käsebr0t:
I use this kernel: http://xdaforums.com/showthread.php?t=2905589 and it's reaaally smooth. Be careful though, as it is still in alpha state. However development on it ist going pretty good [emoji106]
[Nexus 7 Original Development] mohsanraza97:
battery life

how is the battery life on cm12?
[Nexus 7 Original Development] Reptilez_DK:
Depends on your usage. Give it a try. ;)
[Nexus 7 Original Development] mattbirks:
I've got a suspicion that one of my settings menus has changed from 19/2 to 22/2.

I'm sure the 'about tablet' button used to be on the right, but now it's stranded on it's own at the bottom of the list, left justified.

Under 'system', I've got...

Date & time, Accessibility, Storage, Language & input, Backups & reset, Printing, Performance, Developer options, About tablet

That the same for others? Looks different to me, but I don't have a 19/2 nandroid to go back to.

Matt
[Nexus 7 Original Development] Reptilez_DK:
The entire settings list has changed. I *think* is was on the 21st. It has been "regrouped". It is very easily seen on a phone layout. :)
[Nexus 7 Original Development] mattbirks:
Yeah, Storage and Backups are in different sections on my Nexus 4 stock Lollipop. Is there any explanation of the decision? Seems curious.
[Nexus 7 Original Development] dilldoe:
Does theme not work yet? Tried installing a new theme and doesn't show up in theme menu.

Also is it possible to use widget on lock screen?
[Nexus 7 Original Development] MxFadzil92:
for themes i cn confirm it work... try finding cm12 themes on playstore. widget no idea lol sorry.
[Nexus 7 Original Development] linuxxxx:
Old T-Mobile themes are not supported anymore. Cm11 themes partially work. Other themes written for cm12 are working ofc. Widgets on lockscreen aren't supported anymore (from aosp)

Sent from my A0001
[Nexus 7 Original Development] mattbirks:
Finally got round to clean flashing CM12 again.

> Full wipe, format /data and /cache to F2FS using modified TWRP posted on here by Thomy.

> Flash 25/2 CM12 nightly + micro PA Gapps + SuperSU 2.46

Very usable, good responsiveness.

+ CMUpdater now automatically flashes updates through TWRP (which it didn't on my last install based on 19/1 clean flash)

+ My lock/unlock sounds are back :)

- Still lose the sounds when adjusting volume in settings after you've entered a submenu, as noted previously.

Very happy with this at the moment.

Matt
[Nexus 7 Original Development] rockknee:
Is there noticable improvement on performance with f2fs? I had to go back to stock because the device went crazy slow and laggy just by listening music and doing something else at the same time... It was unusable
[Nexus 7 Original Development] mattbirks:
I'm finding it a lot more responsive all round, but it is also a clean install, so it's hard to say how much of that is f2fs.

It certainly isn't worse, so seems a bit of a no brainer really.

The performance of the night lies varies quite a lot, so you may have just been unlucky when you tried it.
[Nexus 7 Original Development] mattbirks:
Is anyone else having trouble creating restricted accounts?

I managed fine from about 19/1, but on my fresh 25/2 install it doesn't complete.

I can create and edit the accounts from my owner account settings, but when I login to the new account, it doesn't complete the initial setup process all the way to the homescreen.

The initial setup goes through language and wifi, then you get an "change not allowed" error for the next option, so you have to skip. I then get the CM splash screen with 'start >', but clicking start just leaves the splash screen up, it never completes to the homescreen. If you logon and in again, you start the initial setup again.

Anyone else had any success?
[Nexus 7 Original Development] 19dragon98:
If anyone want see how works cyanogemod 12 f2fs :) https://www.youtube.com/watch?v=XDj7_R_qmXQ&app=desktop
[Nexus 7 Original Development] mattbirks:
That's quicker than mine. Very nice.
[Nexus 7 Original Development] MxFadzil92:
hi guys how do you enable the f2fs ?
[Nexus 7 Original Development] mattbirks:
There are various guides out there. You will end up with a clean ROM install, all of your apps and data (including SDcard) will be lost, unless you know how to back them all up

off your device

and restore them.

Essentially...

-Flash a custom recovery which supports the CM12 kernel compliant F2FS implementation (see an earlier link to TWRP by Thomy)

-Reformat /data and /cache to F2FS in TWRP - NOTE: this will delete your apps and SDcard contents

-Wipe /system - NOTE: this will delete your ROM

-Copy the latest CM12 nightly, Gapps (and SuperSU) to sdcard via USB

-Flash CM12, Gapps, SuperSU

If you don't know how to do all of these things already, go read some of the flashing guides on XDA and find a more comprehensive guide to using F2FS. I am not responsible for anything you do to your device. I have just written this to give you an idea of what's entailed, I make no guarantees about it's completeness.
[Nexus 7 Original Development] 19dragon98:
My tutorial how to install Cyanogenmod 12 f2fs :)

https://youtu.be/R1fI-S-GsnM
[Nexus 7 Original Development] MxFadzil92:
thanks bro for the advice rly appreciate it =D
[Nexus 7 Original Development] !crazy:
IMO the more simple way is to download stuff on internal sdcard, flash recovery which supports f2fs, format system and cache to f2fs, and flash ROM. Boot to check if everything is fine, do a backup of what you need. Reboot again to recovery and format data to f2fs (this wipes/formats internal sdcard too, but you know that.). Now you have all partitions f2fs, and didn't have to use computer and USB. But Ok... I understand some people prefer another way and probably find it to be more simple.
[Nexus 7 Original Development] mattbirks:
I see what you're doing there, and it makes a lot of sense. I don't believe CM12 support F2FS for /system though, so the process could be even simpler.

Matt
[Nexus 7 Original Development] Mockingbird:
Anyone managed to install minecraft on cm12 ? For me it doesnt want to install at all.
[Nexus 7 Original Development] supermario3:
Latest zip with md5

EDFD94B150019384184BC53A31A267CA

is corrupted.

This should be the real one

2bc7e69c2baa500b7ec09d60520c7347

I cannot download it. I tried twice and I end up with a zip with the first md5 mentioned.

EDIT. I used the short link and it downloaded the correct one.
[Nexus 7 Original Development] agentfazexx:
When I flash updates...do I need to keep flashing the supersu zip to remain rooted?
[Nexus 7 Original Development] linuxxxx:
What? Cm has built in root access from privacy guard. Check settings>developer options>root access

Sent from my A0001
[Nexus 7 Original Development] molnardk:
hi, can somebody help me?

I have a problem, after i tried to update via cm update(in the options) it went to the recovery, well... tried because i use TWRP and the logo comes up but it is just flash black and and stuck... :/

Can somebody know the solution? i cant boot to recovery, i cant boot up the system, and i cant do anything with my tablet :(

sorry for my english.
[Nexus 7 Original Development] linuxxxx:
Read the #2 post

Sent from my A0001
[Nexus 7 Original Development] mattbirks:
I flash SuperSU each time, because I prefer it. CM12 does have root binaries, so you don't necessarily need it.

---------- Post added at 10:26 AM ---------- Previous post was at 10:25 AM ----------

Bump.

Anyone else able to create restricted accounts?
[Nexus 7 Original Development] pride007.2012:
it's perfecto.
[Nexus 7 Original Development] fran_xda:
Is anyone having issues with Google maps? I think that from the first time I flashed Cm12 I cannot get location with low battery location settings, but all other apps like weather app or Osmand can.. Thanks
[Nexus 7 Original Development] mattbirks:
Flashing 10/3 has wiped out my installed wifi certificates. Just reinstalled them and my corporate wifi is working again, so the functionality is fine.

It worked prior to flashing 10/3. Bit of a specific use case, anyone else use certificates who could confirm?

Matt

EDIT: Flashing 11/3 hasn't wiped them out. So this was only an issue with 10/3 for me.
[Nexus 7 Original Development] todivefor:
I am running 2/16 build and performance is terrible. Has performance gotten any better?
[Nexus 7 Original Development] fran_xda:
Good performance in 3-8 build but I have had acceptable performance with all builds I have tried.
[Nexus 7 Original Development] agentfazexx:
Performance has been fine for weeks. Especially with the a74 kernel. This has been widely discussed
[Nexus 7 Original Development] fran_xda:
That's what I said.
[Nexus 7 Original Development] agentfazexx:
3/14 nightly. Froze on first boot then rebooted itself.
[Nexus 7 Original Development] ondoy1943:
3/15 nightly: alarm sound no more; in sound setting and clock setting. anyone else experiencing?

EDIT: it appears that the 3/15 nightly resets the sound setting for default and all set alarms with sound setting, to "silent" or no sound setting. just do requisite edits to default and set alarms after flashing....
[Nexus 7 Original Development] ZeroDs111:
Help please

Hi, i´m with 5.1 Stock and i want to change to a custom ROM; i have the bootloader unblocked, but i dont know the step by step to install a Custom ROM with F2Fs please
[Nexus 7 Original Development] HaRdC0r3:
How many ROMs do you want to install?
[Nexus 7 Original Development] luckyrumo:
Follow the "first time install" instructions in the OP, but use the F2FS-comaptible recovery (see Downloads section in the OP), put your COMPLETE BACKUP on an EXTERNAL drive or pc, format (one partition after the other) to f2fs (using the recovery), then install rom and gapps
[Nexus 7 Original Development] ZeroDs111:
Thanks, but, how i can push the CM F2FS ROM and gapps to the Nexus7? And, all Nightlys are compatible with F2FS?
[Nexus 7 Original Development] luckyrumo:
with adb push or mtp. yes
[Nexus 7 Original Development] cptsashimi:
TWRP will allow drag and drop while in recovery.
[Nexus 7 Original Development] nqk:
Latest build, March 20, has System Setting crash after a clean install. Do you guys face that?
[Nexus 7 Original Development] Obeca:
I experienced this crash also, how to fix? Anyone?
[Nexus 7 Original Development] fran_xda:
Same here, not clean install though.
[Nexus 7 Original Development] agentfazexx:
3/19 is really buggy. Laggy, freezes, screen goes black.
[Nexus 7 Original Development] fran_xda:
It's OK here so far.
[Nexus 7 Original Development] SgtPepperKSU:
I see the same. I did a clean install, wiping everything and using f2fs for /data and /cache. And, unfortunately, since it's a clean install, I don't have the debug bridge turned on (and can't get into settings to turn it on...).

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Switch.setVisibility(int)' on a null object reference
at com.android.settings.dashboard.DashboardSummary.updateTileView(DashboardSummary.java:172)
at com.android.settings.dashboard.DashboardSummary.rebuildUI(DashboardSummary.java:135)
at com.android.settings.dashboard.DashboardSummary.access$000(DashboardSummary.java:42)
at com.android.settings.dashboard.DashboardSummary$1.handleMessage(DashboardSummary.java:55)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)

EDIT: yet another settings crash if I go straight to sound settings (other sub-settings pages seem to work fine):

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.settings/com.android.settings.Settings$NotificationSettingsActivity}: java.lang.IllegalArgumentException: Invalid fragment for this activity: com.android.settings.sounds.SoundSettings
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2329)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access$900(ActivityThread.java:147)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1296)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
Caused by: java.lang.IllegalArgumentException: Invalid fragment for this activity: com.android.settings.sounds.SoundSettings
at com.android.settings.SettingsActivity.switchToFragment(SettingsActivity.java:947)
at com.android.settings.SettingsActivity.onCreate(SettingsActivity.java:591)
at android.app.Activity.performCreate(Activity.java:5933)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2282)
... 10 more
[Nexus 7 Original Development] SgtPepperKSU:
Moving back to 20150319 fixed it for me.
[Nexus 7 Original Development] agentfazexx:
3/21 is out. 3/21 is VERY good on my Nexus 6. First I can run since 3/13 on my phone.

What do you guys think so far on the N7 of 3/21?
[Nexus 7 Original Development] Obeca:
I install 3/18 because on 3/19 setup wizard is force closing
[Nexus 7 Original Development] nqk:
In 3/21, the system setting crash was past.

:D
[Nexus 7 Original Development] Crim Soukyuu:
Getting very bad freezes every action if using more than one user. The primary user is mostly fine, but running a second one is like using a pentium III and running win vista on it. This was also happening on android 4.4.4/CM11...
[Nexus 7 Original Development] BrandonE97:
There is still no fix for the DHCP issue. I've been driving myself crazy trying to figure this out and made changes to my DHCP server which is a Cisco business class router. My setup is Cisco 892 Router with separate WiFi access point that is a Cisco 2602e AP.

I dont even have to restart the tablet, I can turn WiFi off and back on and it gets a different IP address and in the DHCP server it shoes a long MAC address that is different each time. Here are some examples:

ff00.0000.0629.4000.0000.0000.0000.0000.0000.00

and

ff00.0000.060d.4000.0000.0000.0000.0000.0000.00

and so on with the MAC changing a little each time and using up IP addresses.
[Nexus 7 Original Development] tobashadow:
Audio Bug - Streaming audio gets garbled after 30+ mins of audio, starting and stopping feed does not fix it and only solved by rebooting.

All sources of streaming audio using multiple apps

Wifi signal is 85+%

Network speed is 60mps+
[Nexus 7 Original Development] maxmax0:
3/27 runs nicely on f2fs.

The only thing not working for me is NFC unlock - device hangs when reading the tag during smart lock setup.

---------- Post added at 08:18 PM ---------- Previous post was at 08:15 PM ----------

Yes works fine for me on 3/27.
[Nexus 7 Original Development] Reiven89:
anyone know where I can found a full-f2fs version of the latest Cyano 12?
[Nexus 7 Original Development] el_Salmon:
It's the first time I install CM (cm-12-20150331-NIGHTLY-grouper) in my old Nexus 7: I want a second life for my tablet.
[Nexus 7 Original Development] divanikus:
This looks more like link-level IPv6 than an MAC address (which is 6 bytes long).
[Nexus 7 Original Development] Vnvjeep:
performance issues

Hi Everyone... I've found that performance on the N7 2012 still has me ripping my hair out... it may have gotten slightly better on 5.0.2, but it especially seems to occur when updating apps, or waking it up after sleep. After a while, it gets itself back to normal, but when looking at system monitor, one of the reasons for slowdown is that it's going through a lot of disk usage... it's pegged at 23mb/s... doing something, I don't know what. But when that's done, it's back to normal again. Sorta. Very laggy opening up apps... Chrome is laggy... etc. I know I know... the flash ram is subpar, and the CPU may not be the fastest at 1.2ghz... and ART might be killing it.

I was browsing the 5.1 rasta threads, and found that someone suggested formatting system as ext4, and the data/cache as f2fs? They said this did give it a nice performance boost. They also mentioned that the kernel needed to be compatible in order to handle this. So my question is, is CM12 able to handle a configuration like this, with it's stock kernel?

Second question... does anyone know how performance has changed going from 5.0.2 to 5.1 on Grouper? Anything significant? I haven't been able to find any reports about this yet...

Thank you!
[Nexus 7 Original Development] agentfazexx:
Performance has always sucked on this tab no matter what I've done.
[Nexus 7 Original Development] Harpratap:
Nope. It won't work and Franco kernel won't work on cm12 either. Wait until other kernels are updated for 5.1

It's a mixed bag for me. Stock kernel pretty much sucked. It's better with Franco and nvidia kernel.

You'll have to realize that this is a low end tab with worst nand speed. My advice is stop using any Google apps. I have removed all of them except play store and YouTube. Use lightning browser, adobe reader, office suite; basically, use the lightest apps possible and greenify every single one of them. I rarely face any slowdowns as I only throw things at this tab which I know it can handle.
[Nexus 7 Original Development] Vnvjeep:
Well... I read some conflicting info, specifically that CM12 is able to support f2fs data/cache partitions here... and here... so I decided to try it anyways. I upgraded TWRP to the latest 2.8.6.0, and changed the data and cache partitions to f2fs... I figured this would basically blow everything away on my tablet except for the OS, but didn't count on it including the emulated SD partition in there as well... bah. Ah well... But anyways, it booted back up fresh, and it seems to be working great! Granted, I have not reloaded everything yet, but this is the best performance I have seen yet on this tablet. It's super snappy even after waking up... much, much faster in general! I would highly recommend giving it a try!
[Nexus 7 Original Development] boroboy69r:
What kernel?
[Nexus 7 Original Development] Vnvjeep:
Just the regular stock cm12 kernel!
[Nexus 7 Original Development] Harpratap:
It did?

Must be something wrong with my setup then. It got into a bootloop for me, and even Resurrection Remix which is based on cm12 didn't boot on f2fs.

I'll try that again. Thanks!
[Nexus 7 Original Development] boroboy69r:
Will give it a shoot when get chance [emoji2]
[Nexus 7 Original Development] Vnvjeep:
Make sure you didn't format system... That needs to stay ext4. Data and cache are f2fs only.
[Nexus 7 Original Development] luckyrumo:
I have used that setup for some time now. Works fine, though it still lags sometimes.

But I had to use the special TWRP as advised in the second post of this thread. The "classic" one totally ruined my file system. So, please remember to flash that, and of course backup your internal SD before formatting.

---------- Post added at 03:42 PM ---------- Previous post was at 03:40 PM ----------

Afaik the flash scripts format /system anyway, so you don't need to bother about it.

---------- Post added at 03:44 PM ---------- Previous post was at 03:42 PM ----------

Maybe you had the same TWRP problem as I had, try the special recovery from the OP.
[Nexus 7 Original Development] Vnvjeep:
I actually just used the regular standard Grouper 2.8.6.0 recovery... not the special recovery, and it seems to be working fine? Guess I'm living on the edge here. :) Lol.
[Nexus 7 Original Development] luckyrumo:
Have you already booted to recovery since the installation? For me the bootloops started when I wanted to update for the first time, because only then the recovery used its out-of-date F2FS implementation to write on the partition which had previously been used with the up-to-date F2FS implementation in CM.
[Nexus 7 Original Development] elherr:
For me, CM Updater with standard TWRP 2.8.6.0 for grouper works as advertised. Just updated from 0404 to 0406 to test. I was able to reboot into recovery without issues after updating.

CM12 with stock kernel. /data & /cache formatted F2FS

shell@grouper:/ $ mount | grep f2fs
/dev/block/platform/sdhci-tegra.3/by-name/CAC /cache f2fs rw,seclabel,nosuid,nodev,noatime,nodiratime,background_gc=on,discard,user_xattr,inline_xattr,acl,inline_data,inline_dentry,active_logs=6 0 0
/dev/block/platform/sdhci-tegra.3/by-name/UDA /data f2fs rw,seclabel,nosuid,nodev,noatime,nodiratime,background_gc=on,discard,user_xattr,inline_xattr,acl,inline_data,inline_dentry,active_logs=6 0 0

As a side note, CM12 is running quite nicely. Changed I/O scheduler to 'noop' and min CPU freq to 475 with ondemand scheduler and the tablet is now much snappier than KK (OmniROM KK 4.4.4). Chrome browser is the only thing that really did not work well. No great loss -- I uninstalled it and am using stock browser.
[Nexus 7 Original Development] luckyrumo:
Maybe TWRP has been updated to a new F2FS version... Great news anyway, thank you for the info, and for the performance tweaks, too.
[Nexus 7 Original Development] Vnvjeep:
I've been in recovery to make sure the partitions stayed f2fs, which they did. I haven't updated to a new build yet, but I'll try that tonight! :)
[Nexus 7 Original Development] Vnvjeep:
Yep... just echoing elherr... From what I've reported earlier, I am having no problems with this. I just flashed 4/07 this evening on top of whatever I had before... 4/04? Anywho, it went flawless. I checked TWRP and make sure the cache/data were still f2fs... sure enough, everything looked good. Booted up fine! I think this is a win and profit!! :)
[Nexus 7 Original Development] agentfazexx:
Is there an unofficial CM12.1 thread anywhere?
[Nexus 7 Original Development] nqk:
My Nexus 7, running the latest nightly, can't scan for bluetooth devices. My N4 sees it and can starts paring with it and N7 pops up too the pairing confirmation. But it is blind in scanning... Thus I can't connect to my portable speaker.

:(
[Nexus 7 Original Development] el_Salmon:
Thank you very much. It works like a charm!
[Nexus 7 Original Development] Vnvjeep:
Glad it works for you too! Enjoy... :)