yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 7.7 Android Development] daniel_hk:
It is not a good news but not necessarily sad. It may help us review our paths. I'm unemployed too. :D

I assume the included SuperSU in DU is 2.52 so I didn't take a second look. I'll study it later.

I suppose everyone should know what he is doing, not just blindly follow. This is my bad habit to explain again. Just stop reading if you are bored...:cyclops:

The latest Beta SuperSU I think, is 2.68 (?). From 2.56 (or 2.57?), it is the Systemless root. Systemless root will modify the boot image (unpack and repack the ramdisk) while flashing. You should watch if there is error during flashing. Systemless root will create the /su partition at boot and doesn't involve/modify the /system partition. Thus it can keep the /system partition read only. This is to prevent some firmware's kernel security/checking which forbid the system to load.

If you have installed 2.52 (or 2.46) before a Systemless ROOT, both binaries (System and Systemless) might exist. The SuperSU app only check the existance of the binary. It can work on both. It's hard to tell which binary is really working. In short, SuperSU is just the su command (we can type it in a terminal) that promote us as the user "root".

Right now 2.52 should work flawlessly for our kernel. If not, wipe the system and flash everything again.

I'll study the SuperSU inside DU later. I had modified the build script to include the built-in SuperSU. It might need an update now. Or, I might remove it and let you guys to flash SuperSU separately. It's open to you suggestions.

Anyway, hoping everything will be ready in the next build. ;)
[Galaxy Tab 7.7 Android Development] matoos:
downoad arm android 6 stock.when i want install with twrp 3 get error 70 and not install
[Galaxy Tab 7.7 Android Development] daniel_hk:
I don't know what error 70 mean. I guess its the size of /system no enough to install all the gapps in "stock".

Whenever you have problem flashing. The console above should have the error messages. Just read them all.

Further detail can be found in the recovery.log. There is a "copy log to sdcard" button in Advanced menu.

AGAIN, a picture/screenshot and a log is what we needed in a report. ;)
[Galaxy Tab 7.7 Android Development] matoos:
the size of /system no enough to install all the gapps in "stock". correct this error.how can install???
[Galaxy Tab 7.7 Android Development] Morloc2:
hi

I've this tab with 4.0, and today, I decided to update it :D

do you recomend CM13 or Omni or DirtyUnicorns?

which one could be faster in this tab?

thank you very much
[Galaxy Tab 7.7 Android Development] Zelote:
So, i´ve done the following and everything worked.

Wiped system as you told and

- Flashed latest DU;

- Flashed DU patch-1;

- Flashed SuperSU 2.52 (separately);

- Flashed gapps arm pico;

No errors on flashing and working normally with root! =)
[Galaxy Tab 7.7 Android Development] daniel_hk:
First of all, that's what I guess. If you don't want to attach the recovery.log or a photo for us to confirm, you need to verify yourself first.

If it is really the case, that means you can't install the stock version. You can't fill a 1 litre bottle with 2 litres of water, right? Just install a smaller version.

In this case, the first thing you need to do is to install the latest TWRP. That would ensure you won't brick you tab first.

Which ROM is an subjective question. You have to try it yourself.

Make sure you read post#2 first.

Good luck!
[Galaxy Tab 7.7 Android Development] rebski:
Personally I just keep up to date with daniel_hk's efforts. I am not able to ascribe faster /slower or better /worse attributes to any of the v6 roms.

Why not evaluate them for yourself and let us know your observations?
[Galaxy Tab 7.7 Android Development] Morloc2:
well

I've installed CM13 and, is it posible that is a bit slow than android 4? :S

I found it a bit lagged
[Galaxy Tab 7.7 Android Development] Harrison Le:
Recommended use Pico to mini only for custom Roms
[Galaxy Tab 7.7 Android Development] matoos:
tnx.i install du10 with mini gapps.wow this rom is very fast.tnx daniel.how can root this rom.you say in page 1 DU is already rooted.but not root for me!!!
[Galaxy Tab 7.7 Android Development] Harrison Le:
Keep connecting to wifi it will automatic asking update then click to get update from play store.

If not reflash superSu 2.52 zip then make sure will get update later to superSu 2.65 :)
[Galaxy Tab 7.7 Android Development] matoos:
tnx bro.i havent supersu to update it.in page 1 write du already root and i didnt flash supersu.i think this rom rooted.where i can download latesdt version of supersu?
[Galaxy Tab 7.7 Android Development] Harrison Le:
Link download superSu 2.52 zip here : https://download.chainfire.eu/743/supersu

Download and flash it first then your tab will auto receive update the latest version of supersu 2.65 in your play store immediately.
[Galaxy Tab 7.7 Android Development] juniorhxcx:
I tested the CM13 and OmniROM.

I liked more the performance of the CM13 and stability however the same has a bug on the screen sometimes flashes in OmniROM has, but it has some automatic restarts, I ended up with the OmniROM.

The ROM DU looks good too, from what I read is as stable as the CM13 but with the advantage of the bug have been partially resolved.
[Galaxy Tab 7.7 Android Development] Wolverine1977:
I just updated to omni-6.0.1-20160222-p6210-HOMEMADE.zip over the weekend and am impressed with the speed and stability, the only issue I noticed is after booting the Login screen is glitchy - only takes up 1/2 the screen then if I rotate the tablet it corrects it's self.

Thanks for all the effort in supporting these legacy tablets :)
[Galaxy Tab 7.7 Android Development] F R Harris:
Hello Daniel,

Install latest DU and patch on P6200 Tab Plus, result was good, screen flickering are almost gone, system felt faster and stable than the last OMNI and DU builds. Mobile data working as expected. Not a random boot yet for the past two days.

Great build thank you very much
[Galaxy Tab 7.7 Android Development] magicozero:
I have install last du on p6200 is perfect. Only problem search on play videos. You great daniel thanks for your work.
[Galaxy Tab 7.7 Android Development] F R Harris:
Hello Daniel,

Just notice today when trying to take screenshot on my tab, P6200, it says "Couldn't capture screenshot. - Can't take screenshot due to limited storage space, or it isn't allowed by the app or your organization", anyway to fix this?

Thank you
[Galaxy Tab 7.7 Android Development] daniel_hk:
I had explain the display for many times. If you are interested, search the posts in this thread. ;)

I don't know what's the problem on search play video. I can't use google service. Someone might want to help but you need to explain what's really wrong, better with screenshots and log.

I don't have problem taking screen shots (I did it in the power menu). [MENTION=7042482]Harrison Le[/MENTION] also attached a few screen shots a few posts above.

Check your log if you are not comfortable to share it. ;)
[Galaxy Tab 7.7 Android Development] wildlion13:
Dear Daniel,

Thanks for your tireless efforts in keeping our tab updated with latest.

I have dirty flashed 14/11 ROM on top of last week's version. Everything workes other then GPS. It was working with last week's ROM but not able to see any satellite now. Any pointers?

Thanks and Regards,
[Galaxy Tab 7.7 Android Development] daniel_hk:
Just checked. Yeah, I don't know why non PIE is off again.

I've prepared the View attachment gps-patch.zip. Flash it in recovery will get GPS back.

Good luck!
[Galaxy Tab 7.7 Android Development] wildlion13:
It workes! Thanks.
[Galaxy Tab 7.7 Android Development] Harrison Le:
Just flash build 20151114, installed some apps as:

YouTube, UC browse, newsstand, Google photo... are worked but some heavy apps as Facebook.... were crashed,, compare to Omni Lollipop 5.1.1, it may get 70%
[Galaxy Tab 7.7 Android Development] uli-hh:
Just flashed the new version on my P6200. Flashed only the rom.zip and the gps.zip (with wipe cache/dalvik cache afterwards). After reboot to system there was no setup wizard - only start screen with the "ok-bubble". Was able to configure the system within settings (wifi, language, developers options) but SIM was not found!:(

After that I flashed gapps.zip and supersu.zip (with wipe cache/dalvik cache afterwards). After reboot (long time) to system setup wizard and google service crashed permanently FC !!. System was not usable, even launcher didn't appear. Managed to reboot into TWRP. Did a factory reset and tried to reboot to system again. That time I was stuck at the onmi boot logo, so I have to long press the power button to reboot again. Before that I removed the SD card.

This time the system has booted without any problem and the setup wizard started directly. But also this time no luck with the SIM.:(

After all that I had to connect my P6200 to the power supply because battery was gone from over 80% to 10% in that short time.:confused:

After charging to 100% I'll find out what battery live will do.
[Galaxy Tab 7.7 Android Development] Harrison Le:
Report build 20151114 [P6800]

1/ gps worked after flash zip

2/ after recharging batery, run quite smooth

3/ DSP manager no work, uninstall it and install audioFX then ok :)

Just only starting Omni logo take long time ,more than ten minutes :)

---------- Post added at 07:28 AM ---------- Previous post was at 07:23 AM ----------

Thanks [MENTION=4948627]daniel_hk[/MENTION] for making galaxy tab 7.7 get long life and still waiting something newer fot it :)
[Galaxy Tab 7.7 Android Development] p3dboard:
Was that the oneplus one's audiofx app? in Step 3 that you used?
[Galaxy Tab 7.7 Android Development] wildlion13:
Dear Daniel,

I am seeing a very periodic loss of wifi connectivity. Every about 11 minutes the connection is lost and i have to reconnect to wifi connection which then works fine for 11 minutes and so on. Any pointers to how i can check log / debug the issue? I will appreciate if anyone else can confirm such strange wifi behaviour.

Thanks.
[Galaxy Tab 7.7 Android Development] Harrison Le:
That app i searched google with key "adioFX" ,it is apk file then download and install it.
[Galaxy Tab 7.7 Android Development] Harrison Le:
After 2 days worked hard on new rom found out one thing strange never happened on all rom cook before, that is during running an app or browsing a website will be appeared an big black dot with diameter around 1cm at center bottom of screen, time about 5 seconds then disappeared during these times it get heavy lag :(

Finally it run smoothly but little bit heavy :)
[Galaxy Tab 7.7 Android Development] philipnzw:
WiFi disconnects every few minutes

Stock browsers can't download anything ,even tried other browsers

But overall works pretty nicely
[Galaxy Tab 7.7 Android Development] so_ang:
Already install 1411 build ...

It's show SD Card not support want to format is it bug from CM....

Can I make my exFat work without format?
[Galaxy Tab 7.7 Android Development] Harrison Le:
My device P6800 have been running Marshmallow with:

- Omni-6.0-20151114-p6800-HOMEMADE.zip (last build so far)

-gapps-600-base-20151022-2-signed.zip ( Daniel-hk offer from beginning)

it work well and today see gapps update have new gaaps named: gapps-600-base-20151114-p6800-HOMEMADE.zip with more updated apps so try to flash with this gap but failed , after flash rom Omni succeed then during flashing gapps, it crashed and turn back recovery... try 2 time is the same ! :(
[Galaxy Tab 7.7 Android Development] daniel_hk:
I'm mostly on Omni6 now. (though in a newer build that I'm testing). I watched local on-line news (with YouKu) for 15 min. now. Wifi still connecting.

1. I didn't install Gapps because I can't access google services locally. It might be the reason.

2. I was on 5G. I'm on 2.4G for another 15 min. now. Still streaming.

3. I root it with SuperSU 2.5.2

4. I only install a few apps (ES, GPS status, Power menu, Youtube and Youku)

I'll try again with Gapps on VPN later (may be really later)... ;) It would be better if you provide the log.

Continue with the above. I don't have any black cube at center but I think I know why. If some apps has a missing resource (eg. icon) or didn't support a certain resolution, (mdpi and hdpi mostly for our tab) It might happen. There would be a log too. Since you didn't provide the log. You have to check it yourself. :cyclops:

1. Same as the above. It might be Gapps related but you didn't provide further detail. I'm on a newer build. I might be the reason too...

2. M has more permission settings for apps. For security reason, most of the permissions are disabled by default.

In case of Browser, you may check Settings > Apps > Browser > permissions. If you can't download, I think storage permission is OFF.

The new features are already mentioned in the release note from Google. There are more waiting for us to explore. :D

Already mentioned in Post #2, please read.

Gapps again. I have mentioned many times, I can't access Google services locally. Therefore I didn't test much. I'll test it with VPN later...

I think I would put another background info. on Gapps in post #2 later. Hoping it might clarify the situation. :)

I don't know why you can't see the SIM. The blobs and libraries are LP and M ready now. It works without any problem on my p6800. I've been testing it for quite some time. I can tell you, almost all features in the baseband (include video calls but we don't have the app) are supported now.

I use the same blobs and libraries for p6200 and p6800 (also t869 too). I'm quite sure it is working faultless now.

Again, try without Gapps first. Since you already had factory reset, I think you better check the contact points of your sim card. Since our tab use a regular SIM card, I suppose you might use an adapter like me. Sometimes, it would cause bad contact easily. ;)

To all:

It is really not my position to teach how to use. I'm not an expert in applications... Please read and share. It's about time to learn new things. :D

I lost count how many times I have said. Detail is the essence of a report. A list of what you have installed, the log, screenshots and/or pictures are always helpful. It might be bulky and boring but It helps understanding each other and save time. ;)
[Galaxy Tab 7.7 Android Development] uli-hh:
Hi Daniel

My SIM was working until now without any problem with your CM12.1 rom. But anyway I've cleaned the contact points of my sim card, wiped everything and did a clean install of the rom.zip only (with wipe cache/dalvik cache afterwards). After reboot to system I was able to configure the system within settings (wifi, language, developers options) but SIM was still not found! (Baseband-Version "Unknown"):crying:

As you can read in the Galaxy Tab Plus section I'm not the only P6200 user with the SIM-problen. Have all the same issues as described there and one more: after some times in standby the auto rotate function does not work anymore. Only a reboot brings is back.

Battery live is excellent!
[Galaxy Tab 7.7 Android Development] daniel_hk:
OK, that is a good hint! You have "unknown" baseband. I think I know where to check now. You don't need to waste your time trying. Just send me the logcat.

I might overlook the posts in tab plus thread. That's why I always ask for details. However obvious or silly you think might help. ;)
[Galaxy Tab 7.7 Android Development] philipnzw:
Now on tap works !!
[Galaxy Tab 7.7 Android Development] Raunak_2003:
Flashed 14/11 Omni Rom on Galaxy Tab Plus P6200

Now on Tap though enable in Google Now, does not seem to work when I long press the home button.:confused:

Also, is Layers supported on this ROM?:confused:

Love your work and you have kept this Tab alive for a long time! Thanks :D
[Galaxy Tab 7.7 Android Development] philipnzw:
You need to enable it in the voice assistant setting i think (in my screenshot) and perhaps enable all the permissions in app settings

Tried to get layers to work ,no luck

Not sure if selinux is working ,can anyone verify?
[Galaxy Tab 7.7 Android Development] Raunak_2003:
Thanks! It worked. :D
[Galaxy Tab 7.7 Android Development] F R Harris:
Hello,

Searched the forum,found out that copying any image files to the screenshot folder seems to fix it. Can take any screenshot now.
[Galaxy Tab 7.7 Android Development] Wachicamo:
Installed DU20160303 on my P6210 and it works better than Omni! It has the flickering, but it's ok. The only issue I've found so far, is that, when you try to get into "Display" setting, it gets a FC.

Thanks, Daniel.
[Galaxy Tab 7.7 Android Development] saeghe3000:
my device does not support loop device

Hi

My Tab is p6800 with DirtyUnicorn rom. But my device doesn't support loop devices!!!!

I use "Loop device checker" app and it tells me "Your device doesn't support loop device".

loop device is a necessary option for who wants run Linux on android.

Why the kernel of DU rom doesn't support loop device?????
[Galaxy Tab 7.7 Android Development] GNUDroid:
FC in display: for this Daniel prepared the patch from 05.03.16 for us. simply flash it. ;)
[Galaxy Tab 7.7 Android Development] daniel_hk:
I just saw your post. Correct me if I'm wrong. I have a feeling that I had done something really bad to you. I don't recall you any where and I definitely didn't kill your dog. :D Those "!!!!" and "????" seems that I owe you something but I can't recall that too. :confused:

If you have complain about the kernel. The core was from Samsung and its base on the Linux 3.0 kernel.

I don't know how the apk "Loop device checker" work so I can't comment.

Run linux on Android?

Android run on Linux kernel so we are already running Linux. Those materials I read must be wrong. :confused:

If you want to mount with -loop option. I seldom use it on an Android device but it's OK if the image is in a supported FS.

Seems you are an expert to Linux. We are just scratching the surface. Here is not for your level.

Surely, you can build you own system that suite your need. ;)
[Galaxy Tab 7.7 Android Development] saeghe3000:
Thank you daniel

Dear daniel

I really thank you a lot ; because of your roms. I am using your roms since two years ago (from kitkat)

I am not so expert that cook a rom such as you ; because of this I ask that question to you.

Why Linux on Android?

I think android doesn't have a lot of package of ordinary linux such as ubuntu or fedora. Because of this leakage , many people use "Complete Linux Installer" app; and one of requierments of this app is: supporting loop device. For checking this ability there is an app named "Linux device checker".

I beg you that add this ability to your next roms if you can, please!
[Galaxy Tab 7.7 Android Development] daniel_hk:
If your problem is Complete Linux Installer, I guess you haven't root. The SuperSU included in the last DU is not working. You need to root again with SuperSU 2.52. Read a few posts above for detail.

Good luck!
[Galaxy Tab 7.7 Android Development] Lt.col.johncross:
I am going to look for my dog right now!!!!!!

LOL - just trolling you roms - still have a few 815's here but been on the newer 10.5 for my daily.
[Galaxy Tab 7.7 Android Development] saeghe3000:
Thanks daniel

No, It's not True. I have installed SuperSU Manually. I installed SuperSU 2.65 and Complete Linux Installer' root access is Granted.
[Galaxy Tab 7.7 Android Development] rgclaros07:
Latest CM

Dear Daniel,

Just installed the latest CM, March 15. Besides the tolerable occasional flickering, the ROM is stable, fast and perhaps battery friendly. Thank you!:)
[Galaxy Tab 7.7 Android Development] Jarr3:
Testing 15Mar2016 CM-13.0 Marshmallow on P6800

Hi Daniel,

as usual, thanks for your great effort in bringing fresh blood into our prehistoric tablets. Personally I own a P6800.

I have tested the Marshmallow Omni release, which came up fine but had occational reboots.

Then I went over to the Marshmallow DU release, which was rock solid. I had it running for days without any problem.

Yesterday I did my first tests with the CM13 build from 15Mar2016. Here I always get "com.android.phone closed" (or something similar (I use swedish)) over and over, it is almost impossible to do anything.

I tried again this morning with CM13 + wipe data, cache and dalvik so I can reinit the device. In the init process asking for language and so on, it complained that there is no sim available. Seems like the sim driver is missing?

Is there any logs I can provide, to simplify finding the problem?

Kind regards

Richard
[Galaxy Tab 7.7 Android Development] daniel_hk:
Thanks for your report. Frankly, I didn't have time to check all the features lately.

I'll re-flash the last CM and return to you later. ;)

Edit: I have re-flash the last CM (20160315) with opengapps arm-pico 20160313.

I don't have any problem. I can make calls and connect with mobile data. I also asked the guys in the local forum. Up to this moment, 5 already reported and all said no problem with phone calls and data.

As you said you are doing a clean install. That was quite weird. You have to provide the detail of your procedure and versions of files. Photos on the message you got might also help.

Otherwise, you better flash again.

Good luck!
[Galaxy Tab 7.7 Android Development] rebski:
On my P6800, I don't have the issues with CM13 as you describe. My Sim card is fine, makes and receives phone calls and Data works. There are no error messages either.

However I do have some stability and screen issues. I shall make a fresh install before going into detail. It could well be an installation related. All I did was Factory Reset and Wipe Dalvik. Next time I shall be more thorough.
[Galaxy Tab 7.7 Android Development] wlhon:
Installed DU. Found the video playback does not support hardware decoder

Iike the omni6. Tried using mxplayer. Can only select sw? Omni can select hw & hw+.

However the SW codec is faster the SW codec in Omni6. Still have reboot but less than omni
[Galaxy Tab 7.7 Android Development] Jarr3:
Hi, did the update this morning. Yet another RTFM... sorry

So after doing

1. clean wipe (dalvik, cache & data)

2. Install CM (20160315) & SuperSU 2.52 and then reboot the first boot worked fine and seems to be stable.

Then I installed opengapps arm-pico 20160315 and another reboot, here it now get the setupwizard crashes. I will have to read the instructions again how to solve this... Is there anything we can flash right after the opengapps which would solve this for us?

/Richard
[Galaxy Tab 7.7 Android Development] FateZero:
WIpe then Install CM + opengapps + SuperSU then reboot and it should be fine.

In TWRP select CM then add zips select the opengapps then add zips and select SuperSU and then select to install and it will do it all at once. Once it is complete reboot.
[Galaxy Tab 7.7 Android Development] Jarr3:
Hi FateZero,

yes that did it, it seems as if the CM 13 ROM is more sensible to a certain order when installing. So now I can test it more thorough.

So this time I took (at once, in this exact order):

cm-13.0-20160315-UNOFFICIAL-p6800.zip

open_gapps-arm-6.0-pico-20160313.zip

SuperSU v2.52 BETA

/Richard
[Galaxy Tab 7.7 Android Development] Esben84:
I had similar problems like you, and what did the trick for me was doing Advanced Wipe and selecting Dalvik Cache, Cache, System and Data. After that flashing the CM13 ROM and opengapps.

My testing so far of the latest 15 March release is that after a fresh boot, in the initial use of the tablet, it's quite responsive and usable for surfing the net. After some time (½h-1h) the tablet starts freezing. Maybe it's run out of memory or some other issue. Sometimes it comes back to life, other times it's just stuck. At that point you feel like giving up and going back to the other tablets/phones.

The OLED display of the Tab 7.7 is still great for watching videos. Using MXPlayer and HW+ decoder, I see some video corruption and unsteady motion playing back 30+ GB Bluray videos. Playing back 4 GB 720p videos does not give video corruption. Is there any way to adjust the color balance of the display? It appears to have changed over time.