yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 7.7 Android Development] p3dboard:
I used the rom for the last few days, and i would say it's the best cyanogen based lollipop rom so far. Video playback was great. The main issue i have compared with Android 4.4.4 rom is i believe to do with memory handling or lower amount of free ram compared with kitkat roms. Eg Chrome browser loading websites can almost grind the tablet to a holt, i think it's more to do with available ram. If i install ad blocking software it generally behaves better, but opening two or three Tabs it can slow down as well.

Once i load all my normal apps, which then have a few background services, games like Real Racing 3, run out of memory and crash out when trying to load larger racing tracks and the interface / menu becomes slow and laggy.

Under Windows i would say it was trying to push items into the swap file due to low ram. I am not sure if Android is configured to use swap files, but it must do something similar with cached processes which you can see under running apps in settings.

It may be because of the larger screen size of the tablet, but my galaxy s2 phone seems to run lollipop much better, it's quite smooth and the chrome browser doesn't freeze up on me
[Galaxy Tab 7.7 Android Development] rebski:
My Omnirom 5.1.1_r1 install was becoming increasingly flaky and I thought I would give this r3 a try.

So far everything seems to be working. YouTube is fine, Xiaomi Fitness Band still not pairing but the Microsoft Band is communicating perfectly. If any observations crop up I shall update this post.

My initial impression is that it lacks the smoothness and speed of the initial Omnirom install and is a bit sluggish at times but all things considered this is very acceptable. I have Lollipop 5.1.1 on my 3 year old tablet, how cool is that! :cool:
[Galaxy Tab 7.7 Android Development] philipnzw:
clicked factory reset under this rom,now the tab is boot looping,cant even reach twrp

uhm,i need some help here,guess odin and reset stock/reflash twrp via odin??

DONT have a data cable with me though.....
[Galaxy Tab 7.7 Android Development] p3dboard:
Hold the power button for 10 seconds while booting, when it powers off, immediately hold the power + volume up button and then release them as soon as you see the Samsung logo. This should get you back to twrp
[Galaxy Tab 7.7 Android Development] Zakyz:
Does anyone have a problem with the tether?
[Galaxy Tab 7.7 Android Development] philipnzw:
tried that but failed ._.

also,reflashing twrp via odin didn't help...

trying reflash stock rom now

nvm,solved via stock rom odin flash,thanks for help
[Galaxy Tab 7.7 Android Development] heartz2015:
How to install???

Thank you.
[Galaxy Tab 7.7 Android Development] voltage88:
Daniel,

I'm not having any problems, I just wanted to say thank you for all the time you have invested in your many xda projects. Your work has helped extend the life and enjoyment of my tablet time and time again!!
[Galaxy Tab 7.7 Android Development] wawa1:
any one have upload TWRP 2.8.6.x or above

and SuperSU-24x.zip

thank
[Galaxy Tab 7.7 Android Development] uli-hh:
TWRP is here on Dev-Host.

SuperSU.zip is here: http://download.chainfire.eu/supersu
[Galaxy Tab 7.7 Android Development] wawa1:
uli-hh

Thank you
[Galaxy Tab 7.7 Android Development] Mrxyzl:
Cool, just saw cm12. 1 had a new update. Wonder if you will update this rom soon?
[Galaxy Tab 7.7 Android Development] edwin270:
You know the rules...............No ETA's or anything of its kind relating.

But personally am sure it will get updated only in the course of time since He is redoing the whole thing after His drive crashed.

Should take sometime.
[Galaxy Tab 7.7 Android Development] knoxjon:
If you figure out any tricks to getting rid of the lag/sluggish, please report!

Carbon has consistently been the best rom for my 7.7.
[Galaxy Tab 7.7 Android Development] p3dboard:
It may be to do with the Davlik heapsize settings in build.prop, check my comments in the cm 12.1 thread
[Galaxy Tab 7.7 Android Development] ErikJanVens:
Many thanks, daniel_hk, for keeping the beautiful Galaxy Tab 7.7 alive. I very much appreciate it.
[Galaxy Tab 7.7 Android Development] danderrion:
hallo mister, if it's based on cm 12.1,

is there still bug with audio driver like known in cm 12.1?
[Galaxy Tab 7.7 Android Development] daniel_hk:
I'm not sure what you referred to but I have update the audio codec and policy.

It is better to try it yourself.

Good luck!
[Galaxy Tab 7.7 Android Development] Ruza:
Thank daniel_hk! Good job.

But there is problem working light sensor.

Is there a solution to the problem?
[Galaxy Tab 7.7 Android Development] ankjain:
double tap to wake

Hi Daniel

Just want to thank you. I am having a second hand p6800 which was laying as waste but thanks to your efforts it is now handling my day to day tasks.

One thing that I need badly is support for double tap to wake support. I really miss it as it is in my phone ( Nubia z7 ) . I tried xposed module but it said that kernel support is missing..

kindly let me know if anything can be done

thanks once again

warm regards

ankjain
[Galaxy Tab 7.7 Android Development] alm7room:
APN not saved ??

I tried several times to save APN settings without any luck
[Galaxy Tab 7.7 Android Development] alm7room:
Hi

I managed to solve it by editing apns-conf.xml file
[Galaxy Tab 7.7 Android Development] alm7room:
Sorry for repeated posting but I have another problem

When I use Es-Explorer to send file to SMB server the device hang and reboot

Any idea how to fix this as it is very important to me
[Galaxy Tab 7.7 Android Development] Ruza:
Yes. I have the same error. And with rootexplorer
[Galaxy Tab 7.7 Android Development] p3dboard:
I've reported the same basic issue about es explorer and file transfers in the Cm 12.1 and Omnirom threads (http://xdaforums.com/showpost.php?p=62174139&postcount=285) - Mine was transferring files between two Es Explorer sessions. Receiving files on the Galaxy Tab 7.7 rom's works fine, it's just the sending of files.
[Galaxy Tab 7.7 Android Development] OdessiTT:
Can not install it

I have a problem: When I'm in recovery mode and trying to flash it, I getting error /tmp/sideload/peckage.zip (Status 7)

I already tried to remove first 3 lines in the script, but still doesn't work:(
[Galaxy Tab 7.7 Android Development] p3dboard:
What recovery have you got installed? CWM no longer works with the latest rom's, you need to use the TWRP which is in the main thread.
[Galaxy Tab 7.7 Android Development] OdessiTT:
I can't find TWRP for p6800.
[Galaxy Tab 7.7 Android Development] Ruza:
http://d-h.st/users/danielhk/?fld_id=44447#files
[Galaxy Tab 7.7 Android Development] tyutchev.chel:
Errors

Hello, Daniel!

Installed several times your firmware, everywhere one and same error: file transfer for wi-fi through the mail, viber, chrome, hangs a tablet, and only a reboot helps. In a network 3g files are transferred good. Music can not be played via bluetooth.

Is it possible to resolve these errors?

Thank you in advance.
[Galaxy Tab 7.7 Android Development] kpitao:
Need some help here........ I haven't updated my SGT I-815 for a few years and now I need to.

Here's the info that I'm currently using:

SCH-I815

Android Version 4.04

Baseband Version i815.04 V.LP11 / I815LP11

Kernel 3.0.15-855014

My question is: Can I just flash this rom from the recovery or do I need to update my firmware first?

Thanks
[Galaxy Tab 7.7 Android Development] philipnzw:
Make sure you have twrp recovery installed and running

Then grab the zips needed and flash away

Btw, bare in mind that the lollipop roms are not as stable as the KitKat ones

Have funz
[Galaxy Tab 7.7 Android Development] aemee:
i think ill just stick to kitkat for the time being.

dirty flashing results in the tablet constantly rebooting at random timings.

currently have the latest build flashed after formatting everything except internal and external card. no random reboots anymore but its still laggy even after tweaking it like suggested by p3dboard.

only get reboots when available memory gets too low. the way it is now, it functions as a regular phone.

using the browser or dling from within the browser causes lag spikes as well as certain games lagging or fc'ing even when set to performance at 1600MHz

latest build now allows the use of HW+ rendering on mx player tho. plus additional toggles on the notification pulldown.

also, you can no longer "lock" the rotation to anything other than potrait for some reason.

which of daniel's kitkat builds should i go for while waiting for lp to stabilize?
[Galaxy Tab 7.7 Android Development] p3dboard:
[MENTION=3665113]Zulhitler[/MENTION] i find Slimkat is pretty good, or if you want cm themes, carbon rom kitkat.
[Galaxy Tab 7.7 Android Development] aemee:
themes dont really bother me. since aesthetics are secondary compared to usability. slimkat it is then. thanks p3dboard and thank you daniel for making our tablets survive this long. good luck.
[Galaxy Tab 7.7 Android Development] TrashX:
Definetely SlimKat!
[Galaxy Tab 7.7 Android Development] zlpei:
Thanks
[Galaxy Tab 7.7 Android Development] caca047:
I put last rom 19/09/2015 but now light sensor does not work. Readings is always 0lux and auto brightness does not work. Someone has the same problem? I have p6800...
[Galaxy Tab 7.7 Android Development] curtislin:
me too. tether wifi ap function not working also.
[Galaxy Tab 7.7 Android Development] daniel_hk:
Lollipop use different way to handle brightness. There is no auto brightness in settings now. I think you use app like Lux to set the brightness.

I've checked. The light sensor is not enabled. After I manually enable it with sysfs, it was changing according to the ambient light. Even if it is enabled, apps might not get the value. We are using a blob HAL driver from Samsung. There is no source for both HAL and the app. Therefore not much to do. :(

If you confirm that it is really working on my earlier build, I'll check what was changed in the source.

I've checked. Wifi hotspot can be started but can't connect to the device, right?

I think it's a security issue. See what's wrong in the log. ;)

To all: You needed to report as detail as possible. Just what didn't work doesn't help much.
[Galaxy Tab 7.7 Android Development] caca047:
I can confirm that the light sensor worked properly on version 2015/6/16 I've used. I use Lux app to fine-tune brightness level. Thanks for everything daniel_HK.
[Galaxy Tab 7.7 Android Development] sas_sas:
Thanks Daniel for your ongoing efforts.

Tested the last release but I am afraid it is quite laggy...

By now I have observed that the least laggy rom is Omni. But even this is getting more laggy in time.. Battery vise it is perfect...

I wonder if there is a way to solve this laggy situation coming out in time in order to make Omni perfect..

SM-T700 cihazımdan XDA Forums kullanılarak gönderildi
[Galaxy Tab 7.7 Android Development] daniel_hk:
Even though my Nexus 7 (2012) has 200M more RAM and 4 cores, it is quite laggy when updated to L. I tried many ROMs (Built by myself and others). They perform more or less the same. I can say AOSP base is better than CM base now.

Personally, I'm using my 7.7 more often than before now. I can't say it's my daily driver but it perform observably better than my Nexus 7... I observed that some apps would make things worse when installed. Current apps are getting more and more bulky and memory hunger. I just install some essential apps only and I don't have problem as my Nexus 7. It is definitely usable for myself.

We can't change the hardware of our tab. The only thing we can do is choosing what to install. Just don't restore everything you have before. Try one by one to see which one cause problem.

I'll try to remove some unused services later. It's a trade-off for performance and compatibility. Right now I'm working on the kernel drivers and hoping to squeeze the last drop of it.

Good luck!
[Galaxy Tab 7.7 Android Development] curtislin:
I noticed that after i quit app, the app is still running in background, and that is the major cause of device laggy. Especially, if Facebook is installed, it always running in background. If you force stop Facebook, the device performed well immediately.
[Galaxy Tab 7.7 Android Development] KegRaider:
Hi Daniel_HK,

I decided to upgrade my tablet from Cyanogen 4.1.2 to your latest offering. I struck a couple of issues during the upgrade, which I will note here to possibly help others.

1. I had Clockwork Mod installed, needed to use ODIN to flash the latest TWRP.

2. Upon flashing TWRP, the tablet would no longer boot into it's previous Cyanogen build.

3. Booted into TWRP and flashed successfully Carbon 5.1.1, but tablet still would not boot.

4. Went to Sammobile and downloaded the original ROM and flashed via ODIN.

5. Booted tablet and setup fine as a stock tablet.

6. Flashed latest TWRP via ODIN.

7. Booted TWRP and I was getting errors about writing to partitions, even though I wiped the Dalvik and Cache, turns out I needed to go to the Advanced wipe, and select Dalvik, Cache and Data.

8. Loaded successfully on Carbon 5.1.1 and the Gapps you provided.

9. Give thanks to your great thread and beg for posting rights to thank you :)

- KegRaider
[Galaxy Tab 7.7 Android Development] daniel_hk:
It is quite simple. If you do a factory reset after 3, the rest could be ignored.

4.1.2 is five generations ago. No way the same data would boot.

It is a good habit to do a factory reset before flashing. It is essential when you upgrade/change to different version of Android or ROMs.

It is xda-developers' policy. I didn't set any restrictions.

Good luck!

Daniel
[Galaxy Tab 7.7 Android Development] stonedraider:
amazing rom. my old tablet feels so brandnew, haven't flashed a rom on it since 2 years (was running an old paranoidandroid rom for the last years). of course the hardware is dated, but it is performing quiet well for such a low ram device.
[Galaxy Tab 7.7 Android Development] khungdanxua:
how to install?
[Galaxy Tab 7.7 Android Development] uli-hh:
Here's what I did:

Do a backup of your apps and data!!! (I recommend Titanium-backup)

Install latest TWRP-recovery from TWRP-thread

Download rom.zip, g-apps.zip and SuperSU.zip (safe to external SD)

Reboot into twrp

Do factory reset, wipe everything, but ext SD card

Flash the rom.zip

You need to do a Factory reset/wipe data after flashing!

Reboot to system and let the new system unfold completely (give the tab a few minutes repose)

Reboot into twrp again

Flash gapps.zip and SuperSU.zip

Wipe cache/dalvig cache

Reboot to system

Restore your apps and data

Done.
[Galaxy Tab 7.7 Android Development] xaadilhx:
Very functional with some performance issues due to low ram

My experience.. P6800

I've been normally using the last official jellybean 4.1.2 yet I don't want to sell this lovely device. Every year I test ROMs, this one was a surprise, to function so fully. My upgrade produces

From jb & cwm root, I used rashr flash tool to upgrade to twrp, then to the latest version. After factory reset clearing all memory and apps, I flashed from external memory card & appropriate gapps, took a little while but no errors.

Upon boot most things worked fine, camera, Wi-Fi mobile data, calls, speaker, youtube etc. Most settings and features are good, nice new os

Adding a few apps and when memory gets low it's difficult to use, almost freezes up & sluggish, I've factory reset again and just used xda app, YouTube and web browser. Is ok with light usage.

Due to memory of this device maybe anything past kit Kat might struggle.

Great work to see this.
[Galaxy Tab 7.7 Android Development] GNUDroid:
thank so much Daniel!!!

did not updated my tab since bigger one year (used an old 4.2 beanstalk build since all builds afterwards had been slow).

but now with this new, security fixed build. it's quite responsive, feels so compete working . many many thanks!
[Galaxy Tab 7.7 Android Development] Cluey:
[MENTION=5322233]xaadilhx[/MENTION] I had similar problems, [MENTION=4948627]daniel_hk[/MENTION] suggested a full format which I did, we also spoke about fstrim so I did that too. Both made a noticeable difference. It isn't snappy like a new tablet but quite acceptable given the age of the device.

As discussed above test which apps make it really laggy, see if it's a combination of them. I generally swipe everything off the recent list when I'm done with it and exercise some patience when I want to use the app again.
[Galaxy Tab 7.7 Android Development] wawa1:
I come from eRobot JBTBROM V.1.0 DXMD3 (Baseband Version : P6800DXMD3) ; TWRP Ver 2.8.7.1 and Flash [5.1.1_r18][p6800](6Nov2015) CARBON-LP Unofficial

i tried these steps :

1) eRobot JBTBROM V.1.0 DXMD3

2) flash TWRP Ver 2.8.7.1

3) Factory Reset

4) Installing CARBON-LP Unofficial( 6 Nov 2015) + gapps-511-base-20151114 + UPDATE-SuperSU-v2.46

5) wipe

I have problem

1 Sim card not detected ( warning Insert sim card)

2 i can connect wifi but can not internet
[Galaxy Tab 7.7 Android Development] QuiQuos:
hi, Im having the same issues:

1 Sim card not detected ( warning Insert sim card)

2 i can connect wifi but can not internet

Any solutions yet?
[Galaxy Tab 7.7 Android Development] p3dboard:
It sounds like some of the secril blob's (drivers) or other ril components are missing, as this has been the case when building SlimLP rom's and I forgot to include some of the needed blobs or binary's.

You can check to see if the following files exist in your rom to tell if this is the issue (if any are missing this could be the issue)

/system/lib/libreference-ril.so

/system/lib/libril.so

/system/lib/librilutils.so

/system/lib/libsec-ril.so

/system/lib/libsecril-client.so

/system/lib/libsecril-client-sap.so

/system/bin/rild
[Galaxy Tab 7.7 Android Development] daniel_hk:
I finally made room to backup and flash the Carbon to test.

Yes, the last build has sim issue. The source has changed before I build.

I have prepared a View attachment ril-patch.zip to fix this. Just flash it in recovery. ;)

Good luck!
[Galaxy Tab 7.7 Android Development] QuiQuos:
Something is not right yet.

Now it detects the sim card but if I go to a website it still doesnt enter it, and for example if I go to playstore I get a white screen, waiting to enter to the play store

Its very strange. In website I get the site title and the site icon but no page and no error.

what I did:

I flashed the ril-patch (twrp) and restart the tab.

He ask me for sim card pin code and I enter it.

Now If I turn off WIFI the 3g works, but cant enter in any site or playstore for example, and not with WIFI or 3G.
[Galaxy Tab 7.7 Android Development] QuiQuos:
I have reflash it all from beggining

Now I can't pass the step after I choose my wifi SSID.

It doesn't metter if I select WIFI or not, the next step it just give me a white screen and doens't go any forward...

The only way to get in is to not flash the gapps, then I pass the first configuration, and after I flash the gapps I can't go to playstore for example, it gives me the same white screen.

I tryed with opengapps 5.1.1 micro and base versions

Downloading delta gapps now base to test, hope is that...

---------- Post added at 06:04 PM ---------- Previous post was at 05:07 PM ----------

all tests give same result.

After I choose WIFI ssid, it say "this may take 2min" and goes until "checking info" after this comes a white screen and just stays there

---------- Post added at 06:30 PM ---------- Previous post was at 06:04 PM ----------

The problem appens when I try to create google account. If I go to accounts and try to add google account I get that white screen.
[Galaxy Tab 7.7 Android Development] wawa1:
---------- Post added at 03:21 PM ---------- Previous post was at 02:49 PM ----------

[/COLOR]I test 3 ROM

1.CARBON-5.1.1-UNOFFICIAL-20151106-0114-p6800

2.Slim-p6800-5.1.1.beta.0.9-UNOFFICIAL-20151014-build-1.6.2

3.omni-5.1.1-20150926-p6800-HOMEMADE

Carbon Rom and Slim Rom have a same problem ; Omni Rom is work
[Galaxy Tab 7.7 Android Development] p3dboard:
When you say Carbon Rom and Slim Rom have the same problem, is this the SIM not detected issue, or Mobile Data is not working? Or some other issue.
[Galaxy Tab 7.7 Android Development] wawa1:
CArbon and Slim ROM have same issue

1 Sim card not detected ( warning Insert sim card)

2 can connect wifi but can not connect to internet
[Galaxy Tab 7.7 Android Development] p3dboard:
For Slimrom, I noticed you used build 1.6.2, Can you try the latest Build 1.7, which has new Ril libraries from Daniels CM 12.1 rom? The 1.6.2 was the previous build and I updated it in 1.7. I haven't had anyone else with SlimLP build 1.7 reporting the Sim issues, so I just want to confirm the issue is still in the newer build.
[Galaxy Tab 7.7 Android Development] wawa1:
sorry i'm download a wrong build And now i flash the lastest build 1.7(Slim-p6800-5.1.1.beta.0.10-UNOFFICIAL-20151028-Build-1.7 + Slim mini gapps BETA 5.1 Build

0.x-20151114 + Update SuperSU V2.46)

This build is work. don't have this problem

1 Sim card detected ( mobile data is work)

2 connect wifi And connect to internet

Thanks for a great ROM :)
[Galaxy Tab 7.7 Android Development] QuiQuos:
Sorry but this is slim or carbon Thread??

In carbon I cant pass from google account creation :(
[Galaxy Tab 7.7 Android Development] p3dboard:
This is the carbon Rom thread, really the discussion about the Slim rom issue should have been over in my thread, but since he mentioned Slimrom in the thread I commented on that bit.
[Galaxy Tab 7.7 Android Development] captaineos:
HI Team. I've just come from a 2013 SkyHigh ROM to this one as I really wanted the fastest Google Chrome experience. I flashed the Delta Gapps for 5.1.1 and I have a problem - when I go to use the Play store it opens for a while, checking info then goes to a white screen. Any ideas on how I can get the play store to work please.
[Galaxy Tab 7.7 Android Development] QuiQuos:
Im having same issue but no resolve...
[Galaxy Tab 7.7 Android Development] daniel_hk:
I can't access any google services locally so I simply couldn't test it without the VPN. If you have problem with google services or games, I usually can't help much.

This is also my "old" thread now. Carbon didn't change much. I just want a closure to build the last one. I simply don't have enough time for everything. I need to squeeze some time, backup and test again.

Anyway, I hate the way manufacturers like Samsung does. I'll try to figure out why. You may try the older release. If it works, I might compare what's changed. Gapps are always the source of issue. Better try the older Gapps too. Just gather as much info. as you can. That would help not just me but yourself and the others.

I might consider to build the "final" release again. Things are tight. We can just do our best.
[Galaxy Tab 7.7 Android Development] QuiQuos:
Daniel, you do a incredible job, and thank you for that! :D

I only write the issue's so they stay registered, not too rush anyone in a solution, is just to all know that it might happen if they use this rom.

Ill try what you said, with an old version of gapps. maybe thats the problem!

But I have tested the slimm version with the same gapps and worked ok, but ill test it just to give the feedback, not too rush anything ;)
[Galaxy Tab 7.7 Android Development] sas_sas:
Ths again..

Flashed with the final release 01_Dec on to my P6800 but sim card not dedected..
[Galaxy Tab 7.7 Android Development] daniel_hk:
Oh! Really? Again! :o

I saw the Baseband shown and I thought it work. I didn't check with a real SIM card.

I only got one local SIM card which is for work. It can only be spared after mid night...

Anyway, I've checked. I put all the latest library in the last build. Turn out that the RIL library itself is too "NEW" for 5.1.1... :D

Just flash the old View attachment ril-patch.zip will detect the SIM. It work for p6800, p6200 and t869.

Sorry for the trouble and I think I can really left Lollipop now... ;)

Edit: The last patch was not correctly uploaded. Please download the patch again. It should be around 1M in size.