yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 7.7 Android Development] deani77:
Try factory reset, wipe system, wipe cache and wipe dalvik, then install ROM and GAPPS
[Galaxy Tab 7.7 Android Development] ufaak:
Thanks for the advice.

That did not work, but I downloaded gapps from wiki.cyanogenmod.org/w/Google_Apps and installed well.

Play Store is functional, others try later.
[Galaxy Tab 7.7 Android Development] jackylim:
hi , can i use cwm-6.0.3.0 to install cm-12 on my (P6800)?

thanks
[Galaxy Tab 7.7 Android Development] p3dboard:
No, you will need cwm-6.0.4.5 to flash, or TWRP. Twrp and newer CWM can be found at http://xdaforums.com/showthread.php?t=2352967
[Galaxy Tab 7.7 Android Development] jackylim:
thanks for your help bro...

---------- Post added at 05:46 PM ---------- Previous post was at 05:02 PM ----------

hi p3dboard, can i ask that now my tab P6800 is in custom rom and cwm-6.0.3.0.

can i use odin to just flash the cwm-6.0.4.5?

thanks for advice
[Galaxy Tab 7.7 Android Development] LSD DREAMER:
Yes you can..
[Galaxy Tab 7.7 Android Development] jackylim:
thanks bro.
[Galaxy Tab 7.7 Android Development] p3dboard:
I have observed that during the restore of my apps from the play store after a fresh install, even with the gpu settings, if i tried to use the tablet while it was downloading and installing apps it would reboot randomly. After the first two or three times i just left it install and then it seemed to not reboot. Once everything was set up it seems to have stopped the random rebooting. So i am wondering if it's to do with i/o traffic. Maybe the i/o governor?

Anyway, it's pretty stable now. I have left the use gpu for 2d images enabled.

Looking forward to the next build as the CM theme engine for Android 5 is now back in the latest cm 12 builds.
[Galaxy Tab 7.7 Android Development] dothedyu:
How do you enable to use gpu for 2d images?

I also get random reboots when I try to multitask too much.

Also, are there any settings in Performance Control that have made for a smoother experience for you guys? Thanks!
[Galaxy Tab 7.7 Android Development] p3dboard:
First you need to enable Development options by going to Settings > About Tablet and tapping on the build number about 6 times, one after the other reasonably quick. Then you will have a new settings entry for Development and you will find it under there
[Galaxy Tab 7.7 Android Development] funkyblue04:
Great Work! This tablet is almost unable again! Look forward to more bugs being ironed out :)
[Galaxy Tab 7.7 Android Development] QuiQuos:
Hi,

I cant find the last version too download from 2015-01-25. I only see from the day 10??
[Galaxy Tab 7.7 Android Development] Hitschman:
I was just about to write this tablet off as well and then found this rom. Works a lot better than I expected. I'm sure nobody at Samsung even remembers this device... :) they definitely don't intend to support it for that matter.

Thanks for the rom.
[Galaxy Tab 7.7 Android Development] p3dboard:
Just installed the latest build, 25/1/2015, the random reboot bug is still present. I had a file downloading from the box.com client in the background and launched another app, and got a reboot. After the restart, i let the download complete without launching any other apps and it didn't reboot. So it seems to be background i/o (like with the playstore installing apps mentioned before).... Will see if i can work a repeatable set of steps to cause a reboot and will post it.

Edit: i haven't found an exact sequence to make it reboot so far, but switching to the SIO i/o module, instead of cfq, in performance seems to have so far stopped the reboots for me. More time will tell if it's a workaround.

Edit: had a reboot with sio ... Anyway, will keep playing
[Galaxy Tab 7.7 Android Development] Trung Gs:
pegasusq + sio SIR ≧﹏≦
[Galaxy Tab 7.7 Android Development] deani77:
Mine was interactive + SIO

Sent from CM12 GT-P6800
[Galaxy Tab 7.7 Android Development] funkyblue04:
I find my tablet reboots all the time in the latest build as well. Playing around with HW decoding on MX Player always causes a reboot. Might be worth checking out why.
[Galaxy Tab 7.7 Android Development] deani77:
I use my MX Player to run on SW only... So far no reboot problem while watching movies
[Galaxy Tab 7.7 Android Development] funkyblue04:
I find HW works if you do not skip. It also gives better picture quality for me (for some reason)
[Galaxy Tab 7.7 Android Development] Nuclear Blast:
Yes...random reboou exists

Downloading 25.01.....

Random rebooting exist at 25.01 release

Firmware is nice - smooth, but not stable.

But - missing the problem with the lack of mobile data after reboot - at CarbonRom 4.4.4 it is real problem..

So - a little patience, I'm sure Daniel will bring CM12 to perfection
[Galaxy Tab 7.7 Android Development] p3dboard:
I wiped the /system and did a factory reset. I reflashed the ROM and only did a pico gapps install along with my favorite game real racing 3 as its memory hungry. I have also installed chrome. So far no random reboots. I am thinking one of my common apps is causing the issue
[Galaxy Tab 7.7 Android Development] TBarb169:
WOW

Daniel, all I can say is WOW!:highfive: CM12 is working great on p6810 :D Did a full factory reset, installed and booted up just fine. I did get 1 reboot while installing apps, but other than that it seems it is stable enough to be a daily driver.

Keep up the GREAT work :good:
[Galaxy Tab 7.7 Android Development] LSD DREAMER:
I have a problem connecting to my pc in mtp. If I only mount the SD card it works but not internal storage. Hope I'm not the only 1
[Galaxy Tab 7.7 Android Development] TBarb169:
I just connected to my computer and can see both the sd card and internal storage just fine. Sometimes if my machine is not recognizing my device a reboot helps, especially if you have connected and disconnected it a bunch of times since the last boot. I would also power cycle the tab too just to make sure.
[Galaxy Tab 7.7 Android Development] LSD DREAMER:
I realized now that in ptm it connects straight away it struggles in SD only mode and does not connect at all normally. What do u mean by power cycle
[Galaxy Tab 7.7 Android Development] :
Latest build is extremely stable on my P6800. Pity about the screen recording though, it seems like screen recorders won't work with the P6800, whether on Lollipop or Kit Kat. But still, this version of CyanogenMod 12 is more stable than the CyanogenMod 11 I had.

Just a couple issues: first time applying themes, the tablet will reboot by itself before applying the theme. Not a major issue, but may cause loss of data. The Flashlight option in the quick toggles doesn't work too.
[Galaxy Tab 7.7 Android Development] deani77:
I have no problem so far applying CM12 themed... No reboot
[Galaxy Tab 7.7 Android Development] TBarb169:
Power cycle = turn off and then back on.
[Galaxy Tab 7.7 Android Development] Nuclear Blast:
Only i think so or it`s slower than 4.4.4 CarboRom (or other..) ?

Switching between applications, ..sometimes i think that tab is frozen...but it`s just slooooooow switches betweeeen 2 or 3 apps...
[Galaxy Tab 7.7 Android Development] p3dboard:
I have just switched back to Carbon Rom 4.4.4 for the moment. I believe that either Lollipop is using more ram for the basic system or cyanogenmod is not to optimized with its memory usage. I have been testing for a few days and this is what i have observed.

Once a few basic apps like Google +, Google keep, Google Drive, box.com which have background processes are running the system tends to get random reboots. If i keep to only some basic apps, real racing 3 is very pressed for Ram, it can run in low graphics mode, but if i pause it to bring up the notification bar, sometimes it crashes out due to low ram. If it downloads extra data for tracks sometimes it reboots. Medium and High graphics simply crash out on start due to lack of ram. In contrast Android 4.4.4 Carbon rom, can do low, medium and on a fairly basic setup with not to many background apps it can also run in high graphics, plus no reboots on low memory with disk i/o.

Hopefully future builds will deal better with low memory situations. Possibly the cause of your task switching issues.
[Galaxy Tab 7.7 Android Development] so_ang:
I think the most stable for my P6800 is Carbon Roms but still wait for next update for CM12 in CM12 I hav some problem like random restart or shutdown I think bcoz it use too much Ram in some app like Google Chrome , Dolphin it always freeze till I need to close it by hold Power Button , something I still cant find in this Roms is how to close Vibrate , Try to find it in Profile but cant
[Galaxy Tab 7.7 Android Development] funkyblue04:
I'm getting lots of issues. Sometimes it becomes completely laggy and crashes, forcing a hard reboot. Hopefully more bugs get ironed out.
[Galaxy Tab 7.7 Android Development] matoos:
i have p6800 with TWRP v.2.7.0.0 slimrom v5.2 how can update to cyanogenmode 12?please tell me step by step.
[Galaxy Tab 7.7 Android Development] deani77:
Same method as per slim ROM. You need to clean install
[Galaxy Tab 7.7 Android Development] neskweek:
Hello

I'm not reacting often but I feel like I should on this one.

I was using latest SlimKat version for my P6810 for a while now.

I did wanted to test lollipop on a week-end, I was bored.

SlimKat was pretty stable but was a bit laggy if I had more than one APP launched.

I needed to prevent some service to autolaunch too (facebook, GPS service, several mobile phone services etc.)

When I installed this version (20150110) I have to say I got really impressed by the reactivity of the tablet. I can use several APPs at the same time without a problem. I still block Facebook from autolaunch tho.

I can't block mobile services: if I do, on reboot , I get a message loop complaining about one service (didn't remember which one) didn't boot. If I reactivate it , hangout is serial crashing . Is there any way to remove this part from our device (p6810 ?) since It doesn't have mobile phone hardware ?

I did notice too, that if I let it charge overnight on a docking station, at some point it makes a high pitch noise, at low volume. It's a bit annoying when you have your tablet next to you at sleep. Unplug/replug doesn't produce that noise for a while.

I didn't try that on a regular cable charger.

You did a really great job.

Thank you.
[Galaxy Tab 7.7 Android Development] arthurson:
hello daniel, i finally bought a 8.4 as my main tablet, 7.7 can be retired now.

maybe out of topic, 8.4 use 4.4 kitkat , and samsung actually make it quite usable , there are many good features that 7.7 should enjoy as well, like mutiwindows, gray display , invert display and more.

as we alreay have stable 4.4 , i just wanna know if it possible to port 8.4 samsung rom to our 7.7 , so we can still use it for the long time.

thx again.
[Galaxy Tab 7.7 Android Development] matoos:
please give me latest TWRP version link forupdate my p6800 to CyanogenMod 12.0
[Galaxy Tab 7.7 Android Development] mr-bond:
latest TWRP

hi you will find it here http://xdaforums.com/showthread.php?t=2352967
[Galaxy Tab 7.7 Android Development] deani77:
Just noticed new update already available. Will download and flash it. Thanks
[Galaxy Tab 7.7 Android Development] so_ang:
Prepare my P6800 for upgrade
[Galaxy Tab 7.7 Android Development] Nuclear Blast:
It`s a pitty but i had to downgraded to Daniel`s CarboRom 4.4.4

It seems that our Tab is tooooo old for android 5.0 aka Lolipop

And one more - i`ve bought Cube T7 with 7", 2GHz, 2Gb RAM and LTE - dream machine for less than $180

http://xdaforums.com/android/general/cube-t7-hands-review-capable-4g-tablet-t2982812/post58656126
[Galaxy Tab 7.7 Android Development] mr-magoo:
Some Questions/Problems

ALL IS OK - I've forgot CWM... :D
[Galaxy Tab 7.7 Android Development] so_ang:
I got random Reboot problem after install 070215 Update

Wait for nxt update ......
[Galaxy Tab 7.7 Android Development] deani77:
Clean install or flash over last build?
[Galaxy Tab 7.7 Android Development] matoos:
please tell me how can clean install???? i have slimrom version 5.2 and i want update to this rom
[Galaxy Tab 7.7 Android Development] rebski:
you may get some help here

http://xdaforums.com/showpost.php?p=55871533&postcount=108
[Galaxy Tab 7.7 Android Development] so_ang:
I flash over last build ....

Still not try clean flash ...
[Galaxy Tab 7.7 Android Development] deani77:
Try clean flash... I have problem last time when dirty flash over last build. But now after clean flash I have very minimum random reboot
[Galaxy Tab 7.7 Android Development] Lt.col.johncross:
not seeing SIM card or not seeing network??

sch i815 -

With clean install

During install it claims no sim card present. After install and reboot it just states no service. Is this where we are or could I have a problem on my end??

Loaded on top of october ommi sim card is recognized and verizom network shows but cant get handshake complete - shows exclamation mark with signal
[Galaxy Tab 7.7 Android Development] p3dboard:
I decided to give the latest build a go on my P6810. The latest build seems to be more stable, but still on low memory situations gets a random reboot. However turning off a few background things helps. I made sure I turned off the Google Now OK hot word detection. I turned off Cloud Printing (as I found an article on the Google Nexus 7 that was talking about how to improve the low memory issue with this device as it also has only 1Gb of ram). Anyway, it seems more stable now. But I think ultimately the Android 5.1 update which is supposed to be coming out this month will help address the issue on devices like ours that only has 1Gb of ram. That said, using Greenify to put apps into hibernation, and the above settings, its stable enough to run most of my apps. I find that Chrome seems to be the main app (due to web pages requiring lots of Ram) that has freezes.

Using the Performance Control app that is in the build, i found that Chrome seems to behave better if I use the Medium configuration, in the Memory settings. I am not sure what combination of Memory settings would provide the optimal settings for our device. Any suggestions?
[Galaxy Tab 7.7 Android Development] so_ang:
I just dirty flash 140214

Randon reboot it gone

It dnt hav random reboot anymore

But still lag sometime when open many apps

I think 1G Ram is not enought for CM12

My Note3 hav 3G Ram it still lag when use wit many app
[Galaxy Tab 7.7 Android Development] golfinggino:
I dirty flashed over the previous version and never did get it to boot I tried several times and then went back to the previous version of the rom which is working good for me
[Galaxy Tab 7.7 Android Development] mr-bond:
When I finish the latest twrp 2.8.3.0 for my tab p6800 , it behaved jumpy and unstable. i don't now why so I turn to twrp 2.8.2.1 and its work very good daniel do the twrp 2.8.3.0 work good on your tab

ps i download the file many time to test it tar and zip its the same behaved jumpy and unstable
[Galaxy Tab 7.7 Android Development] mr-magoo:
Tethering Problem/Bug (?)

I have a bug with the tethering on my P6800.

I can't use is - always i get a error, when i want to activate it.

I have the last release (2015/2/14) and use CWM 6.0.4.5.

I've tested TWRP 2.8.3.0 - but i can't use it.

Always, when i want to flash something (ex. the update for SuperSU), i get a restart and nothing happens!

Finally i go back to CWM!

All other functions works fine!

Thanks
[Galaxy Tab 7.7 Android Development] rezadentevil:
Hi guys

I've tried CarbonLP rom, that wasn't good, it was slow in some ways, but this cm is amazing,

I very like it, thanx alot daniel

How can i root it??
[Galaxy Tab 7.7 Android Development] deani77:
I use SuperSU from Chainfire... Flash it after flash the ROM and GAPPS
[Galaxy Tab 7.7 Android Development] matoos:
please give link download supersu
[Galaxy Tab 7.7 Android Development] Trung Gs:
[MENTION=4237113]matoos[/MENTION] http://download.chainfire.eu/supersu
[Galaxy Tab 7.7 Android Development] rezadentevil:
Hi

I have found it without any flash...,

U just need to click afew times on your build number to developer option apears in your setting, and then u can see in 9th line 'root access'

U can choose the last one (Apps and ADB)

And now u have fully root access:good::o
[Galaxy Tab 7.7 Android Development] knoxjon:
Anybody have any luck getting netflix to work with this rom?
[Galaxy Tab 7.7 Android Development] floks:
First of all: Thanks for supporting this device with updates. Thumbs up, Daniel!

Now the problem: I'm using the official docking station with audio out on my stereo with the p6800.

Unfortunately, audio over the dock isn't working with cm12. Any ideas how i could fix this?
[Galaxy Tab 7.7 Android Development] Edwrib:
New build today!

To who waiting for a notification =)
[Galaxy Tab 7.7 Android Development] p3dboard:
I've been using CM12 on my Galaxy S2 for the last few days and its pretty stable. I might try CM12 on my P6810 again with the new build. I think the I9100 (Galaxy s2) build, the developer has adjusted some of the Ram Kill settings, and this has made it a lot more stable. I am not sure if Daniel could maybe grab the settings that they have worked out for the Galaxy S2, which also has 1Gb of Ram, and the exynos 4210 processor, as this may improve the reliability of our device. Eg, on my Galaxy S2 I have now loaded up all my standard apps from the playstore and I am not getting the random reboots. Also Chrome seems to be behaving fairly well.

They have also included the cpu bug fix on the Galaxy S2 CM 12 build that someone recently discovered (I think its a floating point bug).

Looking forward to trying the new build :)
[Galaxy Tab 7.7 Android Development] jackylim:
Hi, my tab 6800 suddenly cannot boot up after install this ROM . its nothing wrong after its install, more than 1 weeks its suddenly its off its self and cannot boot again. Can anyone help or advice. Thanks
[Galaxy Tab 7.7 Android Development] daniel_hk:
Your battery is probably dead. Mine was dead last month. It's about time....[emoji29]

PS. search how to open the backcover and get one from eBay. I already changed it. It is quite easy.
[Galaxy Tab 7.7 Android Development] jackylim:
If like what you say. Then can it be replace?
[Galaxy Tab 7.7 Android Development] so_ang:
Download & Prepare to Update [emoji8]
[Galaxy Tab 7.7 Android Development] Edwrib:
CM 12 didn't allow multi user or are disabled for our device?
[Galaxy Tab 7.7 Android Development] jackylim:
hi daniel_hk, ask for your help. do u think u can do a litter modified on this rom http://xdaforums.com/showthread.php?t=2554877. and thank you.
[Galaxy Tab 7.7 Android Development] daniel_hk:
It will be ready in the next build.

I don't think I can do anything without the device in hand.

Like LG E610, S2, S7560 and a few other devices. If there is a developer working on it, I might give advice.
[Galaxy Tab 7.7 Android Development] jackylim:
For my is tab GT-P7320. for that JB ROM,a few things is not working good. And when the battery is down it cannot charge. See you can help. Thanks
[Galaxy Tab 7.7 Android Development] p3dboard:
Just another interesting Rom for the future, when CM12 is stable, Beanstalk. It's very much like Carbon rom.

I have just changed my Galaxy S2 phone over from CM12 to Beanstalk (which is CM12 based) - It has lots of great customisations, but the Rom is also very stable (as compared to Cm12 on my S2 which I was getting random reboots). It also has very low background CPU usage. My S2 was always running reasonably warm for some reason on CM12, but the Beanstalk build the CPU usage is very low when I run the CPU monitor app.
[Galaxy Tab 7.7 Android Development] ayamgoreng:
thanks for keeping support to 7.7

Is CM12 more heavy than CM11 ? (for our device)

I always thought lollipop = faster.

- Optimizing new apps after boot take more time than CM11

- Installing new apk is slower.. ,etc
[Galaxy Tab 7.7 Android Development] p3dboard:
Lollipop currently has some Ram management issues, especially on devices like ours with 1gb of Ram. This month Android 5.1 is coming out from what i have read, one of the issues it fixes is the Ram management issue. So cm11 maybe faster if the Ram is getting low on cm12.
[Galaxy Tab 7.7 Android Development] ayamgoreng:
Thanks for the explanation. :)

I always thought because our device only have dual core.

I did try android one (5.1) phone with same 1gb of RAM = smooth, but with quad core 1.3ghz MTK
[Galaxy Tab 7.7 Android Development] Rokky:
tried last build...

everything that worked smoothly on 4.4.x so slow now - games, even google maps. Subway surf almost hangs..

What I'm doing wrong???

---------- Post added at 08:13 PM ---------- Previous post was at 07:40 PM ----------

the ram on cm12 is getting low faster than on cm11?

can't even start several games from roovio and lego... my kids will eat my brain.
[Galaxy Tab 7.7 Android Development] LSD DREAMER:
Ram bug. It will be repaired on 5.1.
[Galaxy Tab 7.7 Android Development] Steve_max:
That is ART, the replacement for Dalvik. Dalvik would just optimize the installed apps and run create an "index" of functions (the infamous Dalvik cache) during installation, and compile them when you run. Under ART, the compilation happens as you install the app. This makes the installation of apps under LP (and KK if you enabled ART) much slower than any previous version. The plus side is that the apps will be more optimized and won't have to compile on runtime, so they will run faster.
[Galaxy Tab 7.7 Android Development] zoghrob:
Hi Daniel_HK

I liked your CM12 for P6800 very much. However, few issues happed with me.

I have a tab 7.7 P6800 with Official Samsung 4.1.2 JB firmware. I have CWM 6.0.4.5 installed.

I flashed both cm-12-20150214-UNOFFICIAL-p6800, then cm-12-20150225-UNOFFICIAL-p6800. Here are the issues that faced me.

* gapps didn't get installed. I tried both gapps-lp-20150211-signed & gapps-lp-20150215-signed but both gave error status 7. Trying pa_gapps-modular-micro-5.0.1-20150221-signed also failed giving error status 20.

* Booting takes very long time each restart.

* Using play store or native browser after the boot caused the phone to freeze for long time with occasional restart by itself (2 or 3 times). However waiting after the boot for about 5 - 1- minutes without touching the phone improved the play store but not the browser.

* the 25/2/2015 version solved the play store & the torch issues. But the freezing with the native browser remained. However, using any other browser like firefox didn't cause any freeze.

* Placing & receiving calls is a major problem. Each time I get a call, the screen remains black for a while before giving the answering options, sometimes the phone didn't even ring... just the missed call notification afterwards. Making calls almost always ended with "call not sent", despite good network signal.

Thank you for your time. Your help is much appreciated.
[Galaxy Tab 7.7 Android Development] daniel_hk:
You may get some of the answers if you finish reading the thread.

1. I use pa_gapps all the time. Those lp-gapps might require selinux support.

A: Try latest TWRP which have selinux support and a detail log too.

2. pa_gapps won't flash if other gapps installed before.

A: Wipe system and flash rom, gapps again.

I don't have problem with built-in browser. May be google service issue (bad gapps installed, etc.)

I don't insert a sim all the time. I don't have problem making calls. I might ask someone to call me later.

I'm working on the EGL and memory issue. Will release a new build if I can fix something.