yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 10.1 Android Development] Olivier V:
If it helps, I dirty flashed the 20/3 build over the 30/3 build and the smooth scrolling was back. God I love how it performs now. Even hd YouTube content plays without too much hassle. Occasionally the picture hangs while audio continues but a little push on the progress bar eliminates the problem.

Sent from my Z1 Compact
[Galaxy Tab 10.1 Android Development] LiverpoolFCfan:
Temporary revert to stock

Hi,

First off, I love this ROM. Thanks a million for bringing it to our old TAB.

I need to temporarily revert to the nandroid backup of the stock 4.0.4 ROM I made prior to installing this. I do not see any nandroid backup/restore options in TWRP.

Do I need to ODIN flash CWM back onto the TAB in order to do a nandroid backup of 5.1?

And to do a nandroid restore back to 4.0.4.? Do I just restore? Or do I need to go all the way back with an ODIN flash of the stock ROM, then CWM, then restore over that?

And, once I am ready to reload this ROM, do I restore the nandroid backup of lollipop and then have to install TWTP again?

Please spell out steps I am missing. Thanks for your help.
[Galaxy Tab 10.1 Android Development] honhan0904:
Right

The new rom 30/3 idk why it run drastic emulation very bad. When in ics it was better. 1.4 max cpu
[Galaxy Tab 10.1 Android Development] jaibar:
Any idea where the 20/3 build is available for download? Looks like it's missing in dev-host. I didn't keep a copy and would like to try...
[Galaxy Tab 10.1 Android Development] Prowler665:
There are a few things to be aware of.

what recovery did you use for your backup of the stock ROM? CWM or TWRP, since they are not compatible. If you used CWM you will have to go back to CWM first to restore the backup.

for the stock 4.0.4 ROM the base directory for the recovery is /data/media/TWRP(CWM) - after migrating to multiuser in 4.2+ it is /data/media/0/TWRP(CWM), so the files simply can not be found by the recovery. So if you use CWM make sure the files needed are in /data/media/CWM.

on the top-level of TWRP you have options for backup and restore, these are for Nandroid-Backup.

So if you take a backup of your current 5.1 ROM with the recent TWRP 2.8.x experimental, you can restore it afterwards if you either stay on this recovery, or update it first when comming back from the stock ROM.

For restoring the stock ROM it all depends on whether you can access your backup-files. If you manage to get access to them by either using the appropriate recovery and/or the matching file-paths - just do it. If not you will be forced to use odin anyway...

Have a look here.

Regards
[Galaxy Tab 10.1 Android Development] Prowler665:
If possible use the same version you took the backup with. Most common is the one from pershoot I guess. Have a look here...

I bet there are some flashabe zip out there, but none I'm aware of right now ;)

Regards
[Galaxy Tab 10.1 Android Development] honhan0904:
I think the most stable rom for used daily is build 20150320. With fast animation and compatible with all my app- especially with my drastic emulation. Hope future build will be better like this one

Thanks [MENTION=4404851]decatf[/MENTION]
[Galaxy Tab 10.1 Android Development] Lucas Kado:
Maybe from here: http://xdaforums.com/devdb/project/?id=6639#downloads
[Galaxy Tab 10.1 Android Development] bobtelco123:
Camera / face unlock

in the 5.0.2 ROM i had the camera working no problem

I noticed this i went to the 5.1 rom ( the 3/20 release ) i have been getting the can't connect to the camera after a few second in the camera app.

Also i don't see the facelock feature anymore?

Can anybody confirm if they are also getting any issue with their camera app and if you can get face unlock to work?

I have the p4 7500 vesion
[Galaxy Tab 10.1 Android Development] Olivier V:
I installed the Google camera app and removed the built-in app. The Google app works as it should.
[Galaxy Tab 10.1 Android Development] hello_dbm:
I have installed 150320 build over the stock ROM. But the ROM is not lasting more than 1 day at a stretch. Swype Keyboard hangs very often and the system restarts. While restarting all apps are optimizing again and it take 15 minutes on every restart after hang. What to do?
[Galaxy Tab 10.1 Android Development] Just_Another_N00b:
Did you follow the instructions put in the OP (posts 1 and 2)? When coming from any other ROM you WILL NEED to do a "clean" install, so FULL WIPE (not just cache), including SYSTEM as lingering packages may corrupt the installation. TWRP will allow you to fully wipe system, data and cache prior to loading ALL THREE of the ROM, gapps and SuperSU. Gapps is very important as the original apps-set is incompatible - that could explain your tabs weird behaviour...

If you did do a clean install, then one (or more) of the downloaded zips could be corrupt. Check the MD5 after re-download and prior to installation...

Hope this helps you out.
[Galaxy Tab 10.1 Android Development] dihoc:
I agree with honhan. After recovering from 20150330 build, my tab runs flawlessly with 20150320. "Ok google "works. Thanks [MENTION=4404851]decatf[/MENTION]
[Galaxy Tab 10.1 Android Development] honhan0904:
Is it smooth scrolling like build 0320 [MENTION=4404851]decatf[/MENTION]?
[Galaxy Tab 10.1 Android Development] Olivier V:
Why don't you try it? Someone has to take the first plunge ;)
[Galaxy Tab 10.1 Android Development] matic76@gmail.com:
Dirty flashed from 0320ver, everything seems to work ok, scroling smoot, antutu benchmark 16700. :good::good:
[Galaxy Tab 10.1 Android Development] decatf:
I uploaded a p4tmo (SGH-T859) ROM.

It's basically the p4 ROM with a p4tmo ramdisk. I don't think was necessary to build the entire ROM since there's only a couple of differences; the kernel and a few system properties. Let me know if it works.
[Galaxy Tab 10.1 Android Development] honhan0904:
Nice rom

Now i feel better than previous build

:thumbup:
[Galaxy Tab 10.1 Android Development] Just_Another_N00b:
I also dirty-flashed the 20150403 p4wifi ROM over the 20150320 one, and antutu gave similar numbers, compared to the old one. The full-screen scroll and general behaviour is back to par, compared to the 20150320 release. Thank you again for keeping up the good work with all these releases. I am now going to install this release on all the other p4wifi's I got.

EDIT

Still a slight bit of lag, but not at the level of the intermediate releases. Some zooming a bit stuttering, but nothing major...
[Galaxy Tab 10.1 Android Development] honhan0904:
[MENTION=4404851]decatf[/MENTION] is kernel overlocked gpu to 400mhz??
[Galaxy Tab 10.1 Android Development] decatf:
Yes.
[Galaxy Tab 10.1 Android Development] Kaherdin:
This is so impressive!
[Galaxy Tab 10.1 Android Development] triniboy:
Possible brick?

Hi

I succesfully installed everything, and set the processor to 1.4 with setcpu and rebooted. Tab does not power up. Any ideas? Did a full wipe and installed correct recovery. Help!
[Galaxy Tab 10.1 Android Development] fabduhameau:
Do you succeed to run antutu video test? On my P5wifi (with rom derived from this one (jolie)), the test crash at 3%. pcmark video test doesn't work also.
[Galaxy Tab 10.1 Android Development] ENRIQUEMM:
Maybe should provide more data , or download starts in recovery mode ? This in bootloop or fails to android screen? You have tried to connect the charger and see if you load or do nothing ? I would like to help but would need to see how this your tab at this time.

Enviado desde mi MotoE2(4G-LTE) mediante Tapatalk
[Galaxy Tab 10.1 Android Development] triniboy:
Hi Salamanca

Thanks for the quick response. False alarm... initially it appeared to be a hard brick after rebooting. Tablet was completely dead. I am restoring this tab for a friend, turns out it was the battery tablet roared to life after being connected to the mains overnight, seems stable at 1.4 has anyone pushed to 1.6 on this rom? I have decreased animations to .5 in developer mode does any one have any other optimisation tips ect?

Once again thanks for your offer of help my friend!

---------- Post added at 09:24 AM ---------- Previous post was at 09:23 AM ----------

Whoops I mean ENRIQUEMM
[Galaxy Tab 10.1 Android Development] ENRIQUEMM:
I am glad it has been fixed!

To leave both 1.4 and 1.6 precaution , do so at your own risk . I personally have a 1.2 and is very fluid. I have installed nova launcher for something more Customization and play around with animations ....
[Galaxy Tab 10.1 Android Development] L3R0N:
Anything above 1.4 is unstable. You can give this mod a try http://xdaforums.com/android/software-hacking/tweak-l-speed-v1-0-02-02-2015-t3020138 . I use it and it does make a huge difference in performance.
[Galaxy Tab 10.1 Android Development] hondong:
Hi,

do you know, if OTG USB is working on this Rom?

kind regards, Nils

Gesendet von meinem SM-T900
[Galaxy Tab 10.1 Android Development] bobtelco123:
I use it to transfer to a 32gb usb stick ... it works great for that ... but the transfer speed it slow
[Galaxy Tab 10.1 Android Development] danielyi:
Thank you so much for this ROM!!! Latest update works really good so far!!!! Overcloked to 1.4 and it seems very stable... My tab is running smooth!!! However, my Antutu score is about 12000 range... I think I read it that it used to be around 16000? As long as my tab is running like this, no prob...

Thank you again!
[Galaxy Tab 10.1 Android Development] dihoc:
I set all animation stuff at 0 just like i did with my s4 phone. Both respond quicker in my personal opinion
[Galaxy Tab 10.1 Android Development] rtiangha:
I am downloading this now. Quick question: Does it need a p4tmo specific TWRP as well? I'm running AAcount's Omni 5.0.2 and there he built a slightly older TWRP (2.8.0.0) that works fine with that so I want to assume that it'll work with this ROM too but I do know there are lots of differences between these two Roms as well. I do know that in the past, things wouldn't boot properly if the recovery didn't have a p4tmo specific kernel built in, hence the need for a p4tmo specific TWRP. And if I'm being honest, I would love to try the F2FS stuff on this guy as well. Thanks!
[Galaxy Tab 10.1 Android Development] Prowler665:
AAcounts 2.8.0.0 should work for the installation per se, but you will need the experimental build for SELinux and F2FS. Since the ROM is in permissive mode by default you should be able to run it without problems related to SELinux thou if you want to give it a try. Most probably you will need a p4tmo specific version of TWRP to take advantage of the full features of the ROM, so if you wanna try the p4 experimental build you're on your own - I seriously doubt it will work. But I guess this is exactly the feedback the OP needs ;)

Regards
[Galaxy Tab 10.1 Android Development] jhlambelo:
Working perfectly

Thanks once again for another awesome build.

I can confirm that All is working an quite smooth. I added the files in the following order:

aosp-5.1.0-p4-20150403

aosp-5.1.0-p4tmo-20150403

SuperSU

p75xx-gapps-L-3-28-15

Restored Data from Backup

Now this might be a NOOB question, what is the benefit of "p4tmo"? What does the acronym stand for?
[Galaxy Tab 10.1 Android Development] eushaun99:
Dude...p4tmo is for the T-Mobile(tmo) variant of the tab. Flash only if you have that version.
[Galaxy Tab 10.1 Android Development] jhlambelo:
Bluetooth keyboard

What are you using to auto hide your the soft keyboard if Bluetooth keyboard is detected?
[Galaxy Tab 10.1 Android Development] rtiangha:
Good point; I hadn't noticed. I'm using the standard AOSP keyboard (no gapps, remember?) and the keyboard doesn't seem to autohide. I do know there are some apps that can help with that, like Null Keyboard and Keyboard Switcher.
[Galaxy Tab 10.1 Android Development] Osirus71:
Is anyone having issues logging into Play store for the first time after a fresh install??? I cant seem to be able to log in without the wifi connection going out. This is from a fresh install with the latest version 403 and the latest gapps....Wifi works fine on any other device...No drops...

Thanks
[Galaxy Tab 10.1 Android Development] bierma32:
At first i will say THX for this great Rom, now my Tab has become a second life, most oft Thema works with out issues.

Only question. It is possible to add the OTG support for USB / Sdcard Adapter.http://www.amazon.de/Samsung-Origin...B0051D3KMG/ref=pd_cp_ce_2/279-3340563-9209817

Or give me an instruction to Mount it.
[Galaxy Tab 10.1 Android Development] rtiangha:
OTG external storage works, it just won't automount the volume. If you're rooted, then you should install something like Stickmount from the Play Store.
[Galaxy Tab 10.1 Android Development] khampf:
Splendid!

It just works! Better than 4.4 omni which got screwed up somehow after about a year. Still too early to say if there are any bugs but I've been able to use it like before (watching TV-episodes over DLNA, youtube embedded in Pocket, podcasts, tunein, chrome, playing bridge constructor) and it does seem snappier than anything else I've tried on my tab so far. Even the camera works great now (at first when I installed the Google Camera app the flash turned and stuck on for some reason). Once it turned off when I connected the charger but hasn't happened again.

I flashed twrp from CWM recovery, booted it, did the factory clean, wiped cache & data, flashed ROM, gapps and supersu as per instructions. Great work!
[Galaxy Tab 10.1 Android Development] rtiangha:
So I noticed that there's now a p4tmo build for TWRP. Thanks for doing that, decatf!

I'm going to play around with F2FS, but for those of you already running it, what's the verdict? Yay or nay?

Also, what's the performance like with encryption enabled? Does using F2FS over ext4 help with performance in that case?
[Galaxy Tab 10.1 Android Development] Prowler665:
First of all, AFAIK encryption is not working with F2FS...

Thou there have been quite some improvements regarding F2FS, with fsck.f2fs in particular, you should consider it EXPERIMENTAL for now. So don't use it to store any data you're not prepared to lose. In my tests the performance was quite promising thou.

If you wanna give it a try, here are some hints for the migration.

Regards
[Galaxy Tab 10.1 Android Development] rtiangha:
Oh, I guess I misread that. I interpreted it as meaning that you had to run that ext4 format command manually on the command line to reserve that 16kb of space first, then convert to f2fs and then it would work.

Also, I did something stupid. I wanted an enforcing SELinux mode so I flashed the p75XX enforcing variant zip on my p4tmo. I thought it would only change the attributes of that one file to change things from permissive to enforcing but I guess it's kernel/device specific because when I rebooted, it went straight to download mode saying "No Kernel" (this is probably what other people faced when they flashed roms and recoveries that didn't have a p4tmo specific kernel baked in). The worst part was that it borked the recovery partition and I couldn't boot into recovery either. What's even more worse, flashing one of pershoots old CWM recoveries through Odin didn't seem to do anything. I should have known better.

Anyway, managed to track down a copy of the stock rom of ice cream sandwich that I could flash under Odin (couldn't figure out how to convert a flashable zip to work under Odin; either this one or one of pershoots older roms which would have made life easier since many links to any SGH-T859 stock rom are dead) and finally managed to boot back up to the point where I could access adb again to push files onto the device, reflash custom recoveries and finally custom roms.

So yeah, lesson learned: If you have a p4tmo device, don't be flashing anything that doesn't have a p4tmo kernel baked in. Just don't do it. Oy.

On the plus side, using f2fs on /cache and /data with a clean install, it came up pretty fast on first reboot. Under ext4, it'd take a long time to recompile all the system apps; here it was nearly instantaneous. Very impressed.
[Galaxy Tab 10.1 Android Development] bierma32:
THX for the info,Stickamount works perfect with original Samsung OTG USB / Sdcard adapter
[Galaxy Tab 10.1 Android Development] sflesch:
So, THANK YOU! This runs so much better than the last ROM!

Question for you all. I'm having a heck of a time installing my apps. I go in and select them all and click accept 200 or so times and it's been two days and they still aren't done. It just sort if stops downloading.

If I reboot, either they all quickly fail because they start again before there is a connection or it just doesn't start.

I have seen app called App List Backup, but I don't think that will do much until I get the apps installed.
[Galaxy Tab 10.1 Android Development] MaxLeeSin:
P4 3G, Mobile Internet Fix

Hi I just wanted to know if anyone has found a fix for the P4 3G to work via sim *mobile network*, Because I need my Mobile network to work when I am not at home and just wondering if someone had found a fix yet??:D:p
[Galaxy Tab 10.1 Android Development] drippydh:
Got the same problem indeed.

Flashed the rom yesterday, fresh clean install.

this morning I wanted to install Facebook, but took me all morning...

Further it's a good rom, without any lag.

Last question, is it possible to watch Youtube without lag? Couldn't check yet, but the last rom had a lot of lag.
[Galaxy Tab 10.1 Android Development] Lucas Kado:
3g is working nicely in this ROM, once you've added the APN for your carrier. I'm on 2015/03/20 version and can confirm 3g is OK. Also, app installations are really fast, this version doesn't have the latest issues reported.
[Galaxy Tab 10.1 Android Development] DrGirlfriend:
Noob feedback - great rom (wifi only)

This 5.1 lollipop on my old tab 10.1 finally got me off my lurking a$$ to join in on a great thing. Through all the roms my tab has seen, this is the cat's nuts - the pot-o-gold at the end of the AOSP-rainbow. I want to help testing (not a sw dev, sorry, digital video hw). My observations:

1) The youtube 480p work-around would be fine - if I could get the app to stay where I put it. Too often the change won't take, reverts to 720p and freezes (audio goes on). Maybe this is a youtube app problem, but if we could just get 720p etc to work, problem solved. How can I help to solve this shortcoming?

2) The million+ 'volume boost' apps out there all seem pre-lollipop. It seems the real fix is deeper in the "new open source audio HAL written for the Android 5.0 API". How can I help drill down to flesh this out? I'd rather not kludge in the ICS HAL as it is the dusty past.

3) With 0403 (my birthday, natch') fstrim still spouts: "fstrim : FSTRIM: Operation not supported on transport endpoint" (F2FS?) - I understand Samsung and fstrim need a shotgun wedding, but I think there's some speed waiting there... How to debug...

4) Am I the only one that gets a popup after each reboot asking about SMS message privacy? It won't 'remember', and this ain't a phone anyway. Just annoying junk.

5) I think page one could use a little noob-up to literally walk step by step through conversion, including when gapps goes in, as well as L_Speed/kerneltweaker/kernel adiutor for overclocking, StickMount and whatever else. Downside: more noob silliness questions; upside: more testers.

decatf, max props...:good:

Doctor...
[Galaxy Tab 10.1 Android Development] joegreat:
Hi,

First of all I have to express my "thank you" for the great ROM! :svetius:

It's really impressive to see the newest Android version on our beloved old (first release!) Samsung tablet. :)

Alltough the performance of the ROM on my P4WIFI is good, I would like to slightly overclock it (to 1.2 GHz) to get even better response.

By using 3C Toolbox or Device Control I found out that the settings for clock speed and governer are accepted (and stay after reboot) but the real CPU clock never goes above 1 GHz.

In 3C Toolbox I see that there is no voltage defined for frequencies above 1 GHz... :confused:

Is this behavior on purpose or can I do something to enable speed settings above 1 GHz?

With kind regards

Joe :cool:
[Galaxy Tab 10.1 Android Development] Prowler665:
I don't know about 3C Toolbox, but DeviceControl definitely is NOT recomended for this tab since it is known to mess up the system to a point only a clean re-install will help. On the other hand setcpu or no-frills are known to work, so give them a try.

You might wan't to try the search-function as well for some more info ;)

Regards
[Galaxy Tab 10.1 Android Development] Prowler665:
To fix the 720p problem you simply have to write a new tegra2 video driver ;) Since all known drivers are closed source and nvidia abandoned development for the tegra chips it is not likely to see any improvement...

I didn't try the Voodoo Sound app lately, but it used to work.

Fstrim is dissabled due to a bug in the eMMC firmware known as the "superbrick" bug. A fixed firmware would be needed.

Well, while a little update of post #2 might be a good idea, keep in mind that this is a development thread. While everyone is welcome here, especially if the one is willing to contibute to this thread, this is not intended for the "noob" and it takes a lot of time and effort to address these basics over and over again. Usually if someone has a question or needs help in any way one of the contributors to this thread is jumping in to help, but since it is kind of human nature to go "the easy way" there will be no decrease in "noob-questions" no matter how "noob-friendly" the intro will be ;)

...and while it seems like no one ever read it, "Search before posting" is the first of the Forum Rules... :D

Regards
[Galaxy Tab 10.1 Android Development] dihoc:
Does anybody know any apps that can boost my p4wifi's sound up? It is very weak with AOSP 5.1.0. Viper4Android worked fine with 4.4.4 Nameless.

Thanks
[Galaxy Tab 10.1 Android Development] decatf:
There is a wrapper for ICS audio HALs. I will probably switch to that. It is better than trying to replicate the functionality of the stock code.

There is a kernel patch for the "superbrick bug" but it does not fix the root of the problem at the firmware level. The kernel patch was released by Samsung in 2012 but still nobody will trust it. There is still no known recovery method from this bricking. It's too risky to try.

The set SELinux mode zip only modifies build.prop and then reflashes the ramdisk. If it screws up it should only prevent the ROM from booting. It doesn't touch recovery at all. I don't know what happened but maybe there was some other failsafe thing in bootloader...

The 16kb footer for encryption is sort of non-standard but it's a method that works for old devices. That's probably why it seems not very straight forward.

The current TWRP build does not have the custom f2fs-tools needed to reserve footer space. I will have to try it again since there's a newer version now
[Galaxy Tab 10.1 Android Development] MaxLeeSin:
Thnx

Thnx I got it working, did not know that I had to add the APN but I do appreciate it alot:D:D:good:
[Galaxy Tab 10.1 Android Development] Prowler665:
If you wanna give it a try I'm in for testing :)

The eMMC in our tab is the "MBG8FA" so I guess you refere to this patch. Which is simply skiping the 'secure' part, that is known to cause the bug, for erase & trim converting them to their non-secure couterparts. The patch made it into Linus Torvalds git-repo, so there is a pretty good chance it actually does help - but I wouldn't want to bet my device on this ;)

Regards
[Galaxy Tab 10.1 Android Development] joegreat:
Hi,

I removed Device Control and tested with No Frills CPU Control and SetCPU: Same results! :crying:

The new frequency is set but the CPU never goes over 1 GHz... :eek:

Can sombody check overclocking with the latest ROM (as discribed here)?

With kind regards

Joe :cool:
[Galaxy Tab 10.1 Android Development] kioshio:
Try kernel auditor, works fine! [emoji6]
[Galaxy Tab 10.1 Android Development] hondong:
Hi,

I have 2 P4, but on both Systems i cannot access. USB storage.

I can delete the storage, but i cannot access it.

Any ideas,why?

Kind regards, Nils