yashsingh1/xdaforums huggingface dataset:
[Nexus 7 3G Android Development] PoedelPCS:
Awesome to get a CM12 Release for the aged TiLAPiA. I do not benchmark but I felt the boost from Stock Lollipop to CM12. But I had still some lags in some apps or games. Yep, it's an old device, but men!

Switch your CPU Governor from interactive to ondemand and your TiLAPiA flies! :good:
[Nexus 7 3G Android Development] brainvision:
So we should remove that dir with a file manager while in CM before rebooting into recovery..

Too bad I did not ask yesterday, I could had give a try! Now it's too late, but if someone could try and confirm it works I could consider start once more from scratch with f2fs
[Nexus 7 3G Android Development] PoedelPCS:
do you feel that improvement from f2fs? Or is it good thinking? *G*

I saw some benchmarks, but they don't mirror daily use.
[Nexus 7 3G Android Development] brainvision:
To be honest I used f2fs too less to be able to say I really noticed improvements..

But on the other side whatever I could have or NOT have noticed would had been an objective perspective.. F2fs do bring improvement, much more in such an old device like Nexus 7! That's for sure.. ;)
[Nexus 7 3G Android Development] cmstlist:
So when I installed the first nightly I was having trouble with installing certain APK files - they'd just refuse to install and I'd get the message "App not installed". One example was Threes from the Amazon store. Someone else on this thread reported a similar problem. Is there any improvement on this front with newer nightlies? I have reverted to 4.4.4 for now as it's nice and stable.
[Nexus 7 3G Android Development] michele.degano:
I have installed last nightly 20150211 and now i have problem when i hear music ... i just hear only from the right ear and the left side is silent ...

do you have the same issue ?
[Nexus 7 3G Android Development] brainvision:
I manually installed a bunch of apk of my debug apps and never had such a problem. I also installed apps from play store official an no issues.

Amazon App Store has an issue, this is true.. I installed the app normally but when I launch it shows the welcome screen, I tap Continue and then it doesn't let men insert username and password..

I think it's a Amazon issue, not ROM related.. But cannot be sure..

So sad I cannot install all the apps I bought from amazon for free, BTW..
[Nexus 7 3G Android Development] PoedelPCS:
I just did it.. and it feels much smoother. I installed cyan0gen rec0very, as it works best with f2fs in my case. To set it up I booted twrp2841 temporarily. I copied the files while in twrp with adb push command and restarted recovery to go to cyanogenrecovery. There installed CM and Gapps. Workings flawlessly so far. Rebooting works, and from in out recovery. I can recommend f2fs. You feel the improvement.
[Nexus 7 3G Android Development] brainvision:
Mmmmm.. Are you sure you have f2fs ATM? As long as I know cm recovery does NOT support f2fs, so I'm pretty sure it formatted partitions to ext4 before flashing..

The steps you told are the same I used, except for the fact that I flashed CM and gapps with adb sideload while still into only booted twrp..

And the issue of rebooting in recovery was present..
[Nexus 7 3G Android Development] cmstlist:
The same apps also refused to install directly via the backed up apk. All attempts to restore the affected apps with Titanium were also unsuccessful - it would just hang.
[Nexus 7 3G Android Development] PoedelPCS:
after installing I first rebooted the device to see if it's still working, second I started cyrec and rebooted, third rebooted to bootloader and booted twrp temporarily to check if it's still f2fs. According to twrp's output it still is - why ever.

edit: you cannot format partitions to f2fs with cyrec, but apperently it works with them beeing previously f2fs formatted.
[Nexus 7 3G Android Development] brainvision:
OK mate..

Actually I'm a little bit tired of format and flash and conf everything from the beginning, otherwise I would have tried once more, maybe last versions of cm solved the issue, someway..

Hope you'll be able to update, too..!
[Nexus 7 3G Android Development] ferglobal:
I haven't tried removing that dir, what I have tried is using TWRP brand new 2.8.5.0, and the issue persists. I need to flash from scratch. TWRP seems to be impossible to load once F2FS has been put on, the latest I get on the N7 to load is 2.8.3.0, but then again it doesn't mount my f2fs partitions.
[Nexus 7 3G Android Development] ferglobal:
Well, removing the bugreport file doesn't seem to help either....
[Nexus 7 3G Android Development] Thömy:
Here's a CM compatible TWRP 2.8.5.0 recovery: https://www.androidfilehost.com/?fid=95916177934528848. It's actually build for Grouper but could work on Tilapia.

Corruptions should not happen with it.
[Nexus 7 3G Android Development] michele.degano:
this twrp is for grouper ... is compatitle to both tilapia and grouper or not ?
[Nexus 7 3G Android Development] Thömy:
Oh right. From a technical standpoint it could work in theory. But the recovery will actually complain that tilapia != grouper when flashing a ROM. Or similar issues. Will remove the link.
[Nexus 7 3G Android Development] linuxxxx:
It works but you'll have to remove getprop commands from updater-script each time you flash a build. Will post a f2fs twrp for tilapia.

Sent from my A0001
[Nexus 7 3G Android Development] PoedelPCS:
that means you are working on a f2fs capable twrp clone? cool!
[Nexus 7 3G Android Development] linuxxxx:
It will be just a twrp with a few changes for cm12 and a f2fs fstab.

Sent from my A0001
[Nexus 7 3G Android Development] ferglobal:
I have checked that modifying the update script, the grouper TWRP f2fs 2.8.5.0 can upgrade to the latest nightly. I do still look forward to the specific tilapia TWRP though.
[Nexus 7 3G Android Development] PoedelPCS:
why don't you take the original from here ?
[Nexus 7 3G Android Development] PoedelPCS:
by the way, my data and cache are f2fs, just checked it. See attached screenshot :)
[Nexus 7 3G Android Development] ferglobal:
Are you able to reboot to recovery? That image wouldn't allow me to (it only helped me to change the partitions and do the initial flash of zip files), and corrupted my N7 into boot cycle and forced me to flash my system from scratch. I can only operate with that modified grouper one and tinkering with the update script to upgrade to new nightlies.
[Nexus 7 3G Android Development] PoedelPCS:
according to my own experiences the only way to get this working is:

flash twrp 2830 or cyanogen recovery to recovery partition.

Boot twrp 2841 as I did, maybe 2850 works as well, temporarily.

Use this to fatory reset and wipe system, set cache & data partition to f2fs.

To make sure everything works you can now reboot to bootloader and flash that twrp2830 temporarily again, then hit the button in the middle on the bottom to enter twrp's console output to see everything was mounted correctly.

Then push the cm image and gapps to your sdcard. You can either sideload them or use adb to push them:

adb push cmXXXXX.zip /sdcard/

Do the same to gapps package.

Then use this temporarily booted twrp to install both.

Mission completed.
[Nexus 7 3G Android Development] Thömy:
The recovery uses a kernel with a outdated F2FS driver and can cause corruption in combination with the kernel used by CyanogenMod.
[Nexus 7 3G Android Development] linuxxxx:
As Thomy said

Sent from my A0001
[Nexus 7 3G Android Development] linuxxxx:
Just compiled them:

Recovery (TWRP) : http://puu.sh/fZrcH.img (md5: 67385e0e5e75cce59a0cfb92d6278593)

Recovery (SR): http://puu.sh/fZrsa.img (md5: e6f5b67035f57a61e2b9d6f46988bfcd)

Built for cm12, it supports f2fs, (I did not test twrp before upload, there should be no problems anyway)

Sent from my Mi 2S
[Nexus 7 3G Android Development] rashq:
no deep sleep here also

The device will be awake continuously even when not being used. Battery drains like crazy. Same was the case while using stock 5.0.2. I thought cm will not be having that issue but same issue I am facing in cm also . Any solution guys ?
[Nexus 7 3G Android Development] brainvision:
Hi linuxxxx, thanks for that!

But don't you that the recovery should be safe enough to flash? Someone should try it before releasing.. IMO..

Yea that's absolutely true.. To solve this big issue you can permanently stop and deactivate a bunch of Google Play Service services and others ones, or flash a custom kernel (no support by linuxxxx and cm)
[Nexus 7 3G Android Development] Marasta86:
SMS problem

Hi guys!!!

I'm using the nightly since the first releases, I want to thank the entire staff for good the work done! ;)

I just have a problem, don't know if there's a problem with my configuration or it's due to the CM12, but when Hangout is set as default program for SMS it's unable to read messages, and I have to use the messages app.

If you have any advice to use Hangout for reading SMS it'll be useful.

Thank you again and good work! ;)
[Nexus 7 3G Android Development] linuxxxx:
Hangout does not support SMS on tilapia cuz for Google this device should not be able to send them.

Sent from my A0001
[Nexus 7 3G Android Development] linuxxxx:
For the first question: here you have a working twrp (the previous one had problems loading ui) http://puu.sh/g13Tu.img (tested)

And you can disable GPlay Services permission to wake up your device with Privacy Guard
[Nexus 7 3G Android Development] rauhut:
Just installed both via Fastboot with following results:

Recovery (TWRP): installed successfully but device did not boot in recovery (just black screen)

Recovery (SR): installed successfully and started (but can't read encrypted data partition)
[Nexus 7 3G Android Development] linuxxxx:
About twrp read my previous post. We'll give a look at sr encryption later ;)

Sent from my A0001
[Nexus 7 3G Android Development] rauhut:
twrp-tilapia-f2fs.img version from first post installs and boots but gives

"E:Could not mount /data and unable to find crypto footer"

while openrecovery-twrp-2.8.4.1-tilapia.img asks for the password at statup.
[Nexus 7 3G Android Development] limingg:
Factory reset and wizard crash at Google account login successfully. I just want to restore app from backup by wizard at first boot.

I have try man nightly version, only cm-12-20150204-NIGHTLY-tilapia is fine which didn't crash. Other nightly version are always crash.
[Nexus 7 3G Android Development] linuxxxx:
This is a twrp problem.
[Nexus 7 3G Android Development] Thömy:
But we have to fix it because grouper doesn't use the partition footer for the encryption keys. See http://review.cyanogenmod.org/#/c/88915/3..5/recovery/root/etc/twrp.fstab,cm
[Nexus 7 3G Android Development] daniello8:
When I look at TiBu first screen I see System-ROM: 670 MB (273 MB available) .. which seems to be a little small.

The other partition "Internal+Media" looks ok 29.5 GB (15.4 GB available).

Could someone please send me their layout (TiBu first screen .. bottom information is plenty) .. just for me to check if something is wrong or not. Small System-ROM Partition is really giving me a headache.
[Nexus 7 3G Android Development] daniello8:
Can anyone shed some light on how to replace a few files in /system/app? I cannot copy stuff there .. not even with root explorer or other tools so I tried to make a flashable zip file .. obviously you need more knowledge about all this in Lollipop than on former builds. The file I try gives me this error: "error executing updater binary".

Already unusual that Root Explorer doesn't manage to write there .. what am I missing?

BTW .. using TWRP 2.8.5.1
[Nexus 7 3G Android Development] brainvision:
Did you enable root access from Settings / Developers settings?

If so (and if Root Explorer asked permission to gain root access), then maybe you first need to mount system directory as read & write access..

If you prefer you can try using Es File Manager: once you enable root access from the app navigation drawer you can soon copy to system partition.

If you are copying the new bootanimation file to solve the memory issue, remember to change file permissions!!!
[Nexus 7 3G Android Development] daniello8:
ES File Explorer worked .. thanks for this advice. Doesn't solve why my Zip doesn't work but helps me overwrite the files.
[Nexus 7 3G Android Development] atmfu:
ask about up rom

hi everybody! i'm a newbie. i want to up rom cm12 on my nexus 7, but i don't have SD card usb and i want to flash by nexus toolkit. can i do it? if the way is ok. how step do it. thanks you :)
[Nexus 7 3G Android Development] Marasta86:
Hi guys!

I'm on the 20150225 nightly and I'm interested in switch to f2fs cache and data, there are still problems in the upgrading of CM12 with nightlies using TWRP once converted the filesystem? I'm on the latest one, 2.8.5.1 that has the f2fs option, someone tested if now it works? I'm worried to brick up like [MENTION=2690749]thedap[/MENTION] made.

Thank you all! ;)
[Nexus 7 3G Android Development] linuxxxx:
Do what the first and the second posts say and u wont brick.

Sent from my A0001
[Nexus 7 3G Android Development] Marasta86:
Is it possible to restore some application datas using Titanium Backup or something else even if i come from an ext4 partition?

Formatting data and cache the SD partition won't be erased, is it correct?

Sorry for the stupid questions but I need to be sure about that.

Thank you again!
[Nexus 7 3G Android Development] linuxxxx:
When u format data partition u format userdata (/data/media too). I don't suggest u to backup apps and their data, there's the Google account that will automatically download all ur apps back. The only apps where this would make sense are games that do not use play game APIs

Sent from my A0001
[Nexus 7 3G Android Development] Marasta86:
The matter is exactly this, I'd like to get back the savegames from a game, but if it is not possible it's not a problem.

Thank you for the support! I'll try as soon as possible! ;)
[Nexus 7 3G Android Development] linuxxxx:
If it's a game, then copy the Android directory from the top of ur sdcard to the PC and pull it back again, it should work (i dont use games so i dont remember if this was enough to save its data)

Sent from my A0001
[Nexus 7 3G Android Development] fidoedidoe:
I know custom kernels will not be supported, but I'm interested to know if anyone using f2fs has tried any alternatives successfully. I'm tempted by kernel tweaks / over clocking.

Thanks
[Nexus 7 3G Android Development] linuxxxx:
If u have f2fs and u boot a custom kernel / custom recovery then u'll corrupt ur userdata partition, even if that supports f2fs

Sent from my A0001
[Nexus 7 3G Android Development] fidoedidoe:
That's good advice..thanks for putting me straight on that
[Nexus 7 3G Android Development] rauhut:
f2fs & device encryption

Any chance to fix this?
[Nexus 7 3G Android Development] brainvision:
Is it me or the Networks section is missing from Settings in the last 3 nightly and even more?

:(
[Nexus 7 3G Android Development] linuxxxx:
You can access it from Data Usage>Cellular Connection. I dunno if this section has been removed for tabs or what. I'll check

Sent from my A0001
[Nexus 7 3G Android Development] brainvision:
On my OnePlus one with cm12 the tab is still there..

Thanks for checking, BTW! See you
[Nexus 7 3G Android Development] Spectcrono:
Uh, how do I get root access with this? I checked the option for it in developer options but no dice. Tried flashing SuperSU but nothing.
[Nexus 7 3G Android Development] infomenas:
I installed 20150308 nightly on my Tilapia. Did it both ways in Ext4 and in F2FS from scratch with no further modifications. Everything works, but the tablet is laggy as hell. I'm very disappointed. Still haven't found a decently working Lollipop rom for this device.
[Nexus 7 3G Android Development] paasoares:
I installed cm-12-20150227-NIGHTLY-tilapia in F2FS....Everything works and i don´t notice any lag (until now)

Antutu gives me 20100.
[Nexus 7 3G Android Development] blackdot:
In my case, it helped me to remove all widgets from all workspaces... But sometimes, it's still laggy.
[Nexus 7 3G Android Development] PoedelPCS:
since I switched cpu governor from interative to ondemand mine runs sm00ther ..
[Nexus 7 3G Android Development] qitt:
Just turn off "livedisplay" and your lags will gone.
[Nexus 7 3G Android Development] blackdot:
Where can I turn it off?

Anyway even without widgets, I am experiencing times to time serious lags.
[Nexus 7 3G Android Development] nygooz:
What's live display and where to turn it off?
[Nexus 7 3G Android Development] qitt:
Settings > Display & lights > LiveDisplay > Display mode > Off.
[Nexus 7 3G Android Development] blackdot:
I see, this feature is present in CM in latest builds. Anyway in is turned off by default and turning this feature on cause a fps drop...

But by lags i meant situation when devise became unresponsive for tens of seconds. Looking forward for android 5.1
[Nexus 7 3G Android Development] hamed1297:
my tablet is suffering from "android os " battery draining i try to solve it but i couldn`t.

i want to use CM instead of official ... Does it worth or this Rom still have this problem?
[Nexus 7 3G Android Development] WiwiPouPou:
Always here, we need the timed wakelock thing in kernel (don't remember will edit later)

Envoyé de mon Nexus 4 avec xda Forum
[Nexus 7 3G Android Development] zer0lab.dev:
yea obviously also the official factory image has this issue..

the only way to remove the battery drain is actually install a custom kernel like carcosa or (not sure but it should help, too) mKernel ones.. but you would lose official developer support if you do that..
[Nexus 7 3G Android Development] rauhut:
f2fs & device encryption probably solved

Regarding my f2fs & encrytion issue

I'm probably a step further: Installed cm-12-20150314 successfully today by using openrecovery-twrp-2.8.5.1-tilapia.img booted via PC with fastboot (without installation on the device). Upon TWRP start the password for device encryption was requested and after mounting the partitions I was able to install the update via ADB sideload. Cannot tell for sure yet if the problem is finally solved but at least this workaround did the trick.
[Nexus 7 3G Android Development] zer0lab.dev:
[MENTION=5232542]rauhut[/MENTION] we already tried that, and it works, but the issue will come out when you'll try to update the nightly.. :(
[Nexus 7 3G Android Development] ScanaX:
Fresh install, can't open settings, crash when tapping icon...
[Nexus 7 3G Android Development] halcky:
the same here, is this new build
[Nexus 7 3G Android Development] parcolan:
Sry for the spam, my also crashed when opening settings.

I'm coming from 18 bild directly to 20, but the same
[Nexus 7 3G Android Development] linuxxxx:
I confirm. Will give a look @ this asap. Please send bug report (with cmbug report app) when it crashes ;)

Sent from my A0001

Edit: it will be fixed in 21 nightly
[Nexus 7 3G Android Development] parcolan:
Oh man you save my life.. ?Using live display on HTC desire 816, everything is fine and it saves battery as well, I though that it will be the same here...but its veeery laggy, forgot to turn it off and hole day Im wondering why its laggy, lol
[Nexus 7 3G Android Development] VampireWicked:
This was fixed in the latest build 20150321-NIGHTLY. The issue ID is NIGHTLIES-902 in CM jira.
[Nexus 7 3G Android Development] keneth_c:
Just realized this error when in overview...

Says "couldn't add widget"...

Any idea?

I've been noticing this on last couple of nightlies. I'm currently on the latest nightly 04152015 and using F2FS with stock kernel.
[Nexus 7 3G Android Development] linuxxxx:
Afaik this bug can be workarounded by rebooting into safe mode and then rebooting again.

-------------------------------

We're switching to cm-12.1 today! A stable cm-12.0 release should come soon too!

Here are the new gapps that MUST be flashed after cm12.1 when you upgrade to 12.1 from 12.0 http://d-h.st/BX7Q

You don't have to wipe anything to switch to 12.1, just make sure you update your gapps too

Sent from my tilapia
[Nexus 7 3G Android Development] pieceofphil:
You have uninstalled the google app, that´s why this is shown
[Nexus 7 3G Android Development] daniello8:
On my Tilapia I cannot find where to edit the apn or switch roaming on and off. I have a cell signal but in the menu where I see the airplane mode toggle, vpn and stuff (wireless networks .. more ..) I see no relevant setting like e.g. on my cellphone. Huh???

Same thing on 12.1.
[Nexus 7 3G Android Development] zer0lab.dev:
hi guys, hi [MENTION=571465]linuxxx[/MENTION]

I have a few questions, if you please..

I'm on stock 5.1 ATM an I would like to try CM 12.1 with /data and /cache f2fs to see if performances are better than 5.0 (I really really really hope so, even after installing a bunch of apps and restore my music on tablet, otherwise I fear I will have to revert to a custom KitKat - about that: does someone know a place where CM 11 nightly are still stored? Jankins miss all KitKat builds!!! :( ).

I would like to do something like that:

- flash last TWRP for tilapia

- wipe wipe wipe

- sideload boot the recovery you mention in the the third post -----> puu.sh/g13Tu.img

- F2FS repair /data and /cache

- (reboot into same sideloaded booted recovery)

- flash and flash

- reboot and enjoy

Is all that right? If yes:

1. what kind of recovery is the one you linked us? Is it a special packed recovery or is it just the last TWRP available ATM?

2. if it is a special packed one, that mean neither the latest TWRP have the new F2FS system CM 12.1 uses?

3. what happens when I will need to update the build? How should I update it?

Thanks a lot for paying attention, see ya!
[Nexus 7 3G Android Development] linuxxxx:
Settings>data usage>mobile connections>Access Point Names

That recovery has the cm kernel but AFAIK (I've not tested myself) "official" twrp now has updated their kernel sources with our so it already has new f2fs patches. This should make the custom twrp sideload steps useless.

Cm supports f2fs on any 12.x build so you will have no problems if you use a supported recovery and kernel

Sent from my A0001
[Nexus 7 3G Android Development] zer0lab.dev:
ok thanks..

so.. I'll flash the 04.16 nightly with last TWRP with /data and /cache formatted with F2Fs and then I'll update via OTA to 04-18 one and reboot to recovery..

this should definitely ask all my previous questions, mainly the third one, that is the one I most care, obviously..

I'll let you known ASAP..

thanks a lot, see ya! ;)
[Nexus 7 3G Android Development] paasoares:
Thanks so much for this CM 12.1..... Its amazing !!!

With this rom + /data & /cache in F2FS my old nexus 7 is flying.

Great job.
[Nexus 7 3G Android Development] parcolan:
Hi all, I have a question is the last update 18 a new version than 12 because last night when I flashed it bad things started to happened, youtube has stopped, android.media has stopped and two three other things has stopped and this messages shows every two seconds and basically I can't do anything on my tilapia?

I returned to bild number 6 which I was previously using but yet again the same thing... What shall I do?
[Nexus 7 3G Android Development] daniello8:
you guys have infected me with the f2fs virus ;)

I'm on 12.1 with current TWRP. Is it possible to make a nandroid via TWRP .. then convert cache and data to f2fs via TWRP .. and flash back the nandroid onto the new format?

I admit I didn't read that much .. but if it's that simple I'd try it out :)
[Nexus 7 3G Android Development] paasoares:
[MENTION=4889827]parcolan[/MENTION] : Flash the gapps from the 1st post again.
[Nexus 7 3G Android Development] parcolan:
Now I see that on my tilapia is written 5.1 and I have to flash the new gapps, which I am downloading now. Thanks!

Have one more question, does this mean with this 18 update that it will occur again on my htc desire which is running cm12 when I flash the new update? Should I download it again and flash them after updating the phone with the last 18 update?