yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 10.1 Android Development] Vjenne-ICT:
I have flash the TWRP with odin now but i stuck on the blue TWRP with the name 'teamwin' on it.....

Please can you help me how to fix mij Galaxy Tab (P7500)?

UPDATE: I installed the stock rom with odin but now the tablet stock on de Samsung logo...... what shut i do? Can you give me a step by step plan?

I hope you can help me. Thanks a lot!!
[Galaxy Tab 10.1 Android Development] jerryhou85:
Can you go to Samsung download mode (Volume Down + Power button)? If yes, maybe flash it via download mode using latest stock firmware for P7500.

If still cannot, I'm afraid maybe it's hardware failure somewhere...:crying::crying::crying:
[Galaxy Tab 10.1 Android Development] Vjenne-ICT:
The stock samsung rom works! Can you give me stap by stap plan how i can change to this rom?
[Galaxy Tab 10.1 Android Development] decatf:
Wait at least a few minutes for TWRP to boot. It takes longer than older recoveries.

If you saw the blue logo then that means it's booting.
[Galaxy Tab 10.1 Android Development] Vjenne-ICT:
Booting very long! I waiting a couple of minutes.... I think i waiting at least 5 minutes.... How long would it takes??
[Galaxy Tab 10.1 Android Development] decatf:
It shouldn't take more than 5 minutes.
[Galaxy Tab 10.1 Android Development] Vjenne-ICT:
Thanks for the explanation. I 'm going to try it again .

What is the best plan to tackle it from the origionele ROM?

Device : Galaxy Tab ( ​​P7500 - 3G)

I do not even following explanation , how do I get in that mode ?

Enable Developers Mode by clicking build number 7 times and enter Developers Mode and enable Advanced Reboot.

Long press your power button, select reboot and select reboot into recovery.

Question: WRP 2.8.5.0 is the latest version?
[Galaxy Tab 10.1 Android Development] Heart1010:
Anyone else have the problem that Google Chrome Browser can't be started anymore?

I tried to delete app cache/data, also did a factory reset and tried it again but when I click the google chrom icon nothing happens.

(default android browser and firefox for example still work without any problems)

Update: Found that one here in the thread!

So this is hardware limitation and we should install v49 and never ever can't/should update Google Chrome Browser? Correct?
[Galaxy Tab 10.1 Android Development] LeBourrin:
Yes. It's because Google dropped backward compatibility :(
[Galaxy Tab 10.1 Android Development] Heart1010:
Do you have some info about that? The only thing I can find is "Google Chrome Will Stop Supporting Android 4.0 From April 2015". This was the reason 1 year ago I switched from stock rom to that 5.1.x lollipop rom here :) and google chrome worked again until a few days/weeks now.

So now a "hardware" problem stops using chrome >v50.x and not because google will stop support lollipop :confused:
[Galaxy Tab 10.1 Android Development] LeBourrin:
It's a half-hardware problem. Google compiles their apps for two months with NEON instructions. It's like MMX/SSE for ARM.

In short, it's compilation optimisations wich are not used by our TERGA2 CPU. So we can no longer run NEON versions.
[Galaxy Tab 10.1 Android Development] jerryhou85:
My method is only for when you are already using a CM11, 12.1 or 13...

If you are on stock ROM, download from first post "twrp2870-20150814-p4.tar.md5" and flash with Odin. Then you go to TWRP recovery, flash aosp-5.1.1-p4-20160305.zip and p75xx-gapps-L-7-17-15.zip. That's all. :)
[Galaxy Tab 10.1 Android Development] skycrash:
Hi, i tested this ROM and 6.0 too but Youtube freezing always during videos, have a solution for this ?

Thank you
[Galaxy Tab 10.1 Android Development] Vjenne-ICT:
I've installed TWRP now . Booting is within a minute. How am I supposed to flash this ROM ?
[Galaxy Tab 10.1 Android Development] jerryhou85:
Download these 3 files from first post:

p4 (GT-P7500): Cellular / 3G tablet.

aosp-5.1.1-p4-20160305.zip

Lollipop gapps:

For AOSP 5.1.x

- p75xx-gapps-L-7-17-15.zip

root: SuperSU

BETA SuperSU v.2.52

Flash them one by one in TWRP recovery, then wipe cache/davlik cache and reboot. You are good to go. :)
[Galaxy Tab 10.1 Android Development] rizaraihan:
the animation is seems like stuttering in my tablet, anyone have same problem with me ?, or indeed so ?

Bad english sorry :D
[Galaxy Tab 10.1 Android Development] car_42:
I am quite happy with this rom - thanks a lot. Unfortunately I have sporadic system crashes. Most times when updating the facebook app this happens. Screen goes black and android boot animation is showing again.

In post http://xdaforums.com/showpost.php?p=61475782&postcount=1404 i read about /proc/last_ksmg, but this file is not present on mydevice. Is there a way to get insights on kernel crashes/kernel panics?
[Galaxy Tab 10.1 Android Development] jerryhou85:
Provide a logcat to dev is a good way to investigate.

How to do a logcat:

http://xdaforums.com/showthread.php?t=1726238
[Galaxy Tab 10.1 Android Development] car_42:
Thanks for the hint. I just did a logcat (directly via terminal app) and reviewed the file after the crash. Unfortunately i was not able to see any kernel logs at the end (besides Debugging output there is only garbage collection from art and skipped frames from Choregrapher). Are you sure that logcat woud be able to record these information in case of kernel panics? I doubt that any file-descriptors are still working in such situations - but i do not know.
[Galaxy Tab 10.1 Android Development] jerryhou85:
I'm not a dev and I never use a logcat. Maybe you can post your logcat here and let others check for you?:p
[Galaxy Tab 10.1 Android Development] mariomm_3m:
Sorry for the naive question, but why there are two gapps files (p75xx-gapps-L-7-17-15.zip and p75xx-gapps-L-5-6-15.zip)?
[Galaxy Tab 10.1 Android Development] jerryhou85:
In the first post "Downloads" section, "Lollipop gapps" is the sub section name. :o
[Galaxy Tab 10.1 Android Development] prisoner881:
Just installed this last night on my daughter's p4wifi Galaxy Tab 10.1. Seems to run pretty good so far with one notable exception: Minecraft Pocket Edition will not run. Opening the app causes it to go full screen for an instant then crashes back to Android launcher.

I'm guessing this is due to the video drivers being stuck at ICS and this is a LP ROM. I know the drivers can't be updated, but is there any other solution anyone's found to work?
[Galaxy Tab 10.1 Android Development] fonfir:
Hi, can I install the first post on my 10.1n GT-P7501?
[Galaxy Tab 10.1 Android Development] jerryhou85:
I think your GT-P7501 is with 3G? Then you should try this ROM in first post.

p4 (GT-P7500): Cellular / 3G tablet.

aosp-5.1.1-p4-20160305.zip
[Galaxy Tab 10.1 Android Development] Smiff2:
just installed this and bluetooth seems to work for audio streaming thanks.. any big advantage of the ICS HAL? (btw, first link dead, 2nd link works).

btw, i installed it without wiping userdata (accidentally!) and it seems to be ok.. amazing (coming from 4.0.4 stock). good job.
[Galaxy Tab 10.1 Android Development] jerryhou85:
Audio dock works with old ICS audio HAL. If you don't use audio dock, I think it is not necessary to install it.
[Galaxy Tab 10.1 Android Development] Smiff2:
thanks, not sure what Dock is so i'll not use that. i was having problems with Bluetooth streaming (sound messed up!) but after doing another wipe and restore it seems to have fixed.. i think was due to my dirty upgrade rather than bugs in the HAL.

2nd Q:

is it still a good idea to apply this TRIM kernel?

http://xdaforums.com/galaxy-tab-10-1/development/dev-trim-galaxy-tab-10-1-t3331001

i notice the date on kernel is a year older, any reason this hasn't been packaged with this ROM? or linked in first post?

thanks everyone, tablet working surprisingly well!

edit: ok i see more recent kernel updates here, so do we have to choose between cache improvements etc. and TRIM? one or other? :( is there a newer 5.1.1 kernel with trim please?
[Galaxy Tab 10.1 Android Development] jerryhou85:
Actually for me it is first time I found that this ROM was not equipped with TRIM function. I go through OP's TRIM kernel post and I think it's worth a try definitely. :p

This ROM is not with TRIM, see this in 2# post FAQ Misc. Issue section.

I think we should use these files.

But make sure you are aware of any disaster you may encounter. :cowboy:
[Galaxy Tab 10.1 Android Development] Smiff2:
yeah, as i said that kernel is older than the kernel changes in this ROM! i think you edited your post thanks, but yeah is there no updated kernel with trim for this rom? :( i don't really want to update to the 6.0 ROM if 5.1 is working properly!
[Galaxy Tab 10.1 Android Development] jerryhou85:
I was looking at the wrong place and later notice that it was for 6... :D

There is one way to do this if you want to keep 5.1, you flash TRIM kernel and TRIM the phone, then you flash back...
[Galaxy Tab 10.1 Android Development] Smiff2:
yes was thinking this

1) how often does TRIM need to be run on a tablet used just for minor tasks like web browsing, music playback etc.?

2) how do we flash just kernel from this package?
[Galaxy Tab 10.1 Android Development] jerryhou85:
I've submitted a post on TRIM kernel post asking OP to provide a newer date TRIM kernel. Hope he can help us to solve this from beginning.

For your two questions,

1. I really don't know this, I know normal TRIM by Android is every boot up. If minor use, maybe once a month or 3 months?

2. Ask OP to provide a kernel zip or flash the whole zip again... This is another headache...

The best way is OP can do us a recent TRIM kernel... :fingers-crossed:
[Galaxy Tab 10.1 Android Development] jerryhou85:
http://xdaforums.com/showpost.php?p=67692866&postcount=34 Check this post and flash the TRIM kernel! :) :highfive:
[Galaxy Tab 10.1 Android Development] Smiff2:
ah brilliant, that makes more sense! well spotted. maybe author can edit into first post, afaik there's no reason NOT to be running trim kernel, yes?
[Galaxy Tab 10.1 Android Development] Smiff2:
curious if anyone finds their tab on this 5.1.1 slow to start up? i timed this one at 90s (from the ANDROID logo, and after many reboots), does that sound normal? i forget to time 4.0.4 but seems a lot slower now hmmm.
[Galaxy Tab 10.1 Android Development] jerryhou85:
It did boot up much slower than 4.0.4... I think maybe the hardward is not powerful enough...
[Galaxy Tab 10.1 Android Development] pugzley:
Translated question from my friend:

Hi all,

after flashing of this rom was not working the touch part of screen. Via otg and mouse I can control it, but no response on touch. I'm tried flash original rom via Odin, reflash bootloader, radio, format all partitions via TWR, reflash original rom via Odin, cm-10.1 but still no response on touch. Problem is present also in TWRP (only via otg + mouse i can control it).

Any ideas?

Thanks, Vojtech
[Galaxy Tab 10.1 Android Development] jerryhou85:
How about flashing a Samsung stock ROM? If problem still exists, then I'm afraid it's a hardware failure...
[Galaxy Tab 10.1 Android Development] BigBadVoodooDaddy:
Trouble with missing library armv7a-neon

Hi, a few days ago I installed this lollipop version on my old tablet and it works like a charm. Many thanks for that.

But I have some issues with some games from the google market. They don't start, instead they report "Unable to find an appropriate native library for this device. Expected [armv7a-neon] but only [armeabi, aemeabi-v7a] are supported on this device.

Any ideas? Thanks in advance, BigBadVoodooDaddy.
[Galaxy Tab 10.1 Android Development] rbanavara:
This tab does not support neon instructions (which most of the recent apps are built with). So you can't play any games that are built with neon insrtuction set.
[Galaxy Tab 10.1 Android Development] BigBadVoodooDaddy:
That's sad, because with ICS on that tablet these games runs out of the box. Any chances to make these games think they're running on ICS?

BigBadVoodooDaddy
[Galaxy Tab 10.1 Android Development] rbanavara:
If I am correct, ICS versions never received updates that contained neon instructons and stayed at the last version that was without neon instruction set. So probably you have to check the version of the game that ran properly on ICS and download that version from apkmirror website.
[Galaxy Tab 10.1 Android Development] antok.tm:
I'm currently considering to upgrade my Tab 10.1 from Omni 4.4.4 to Lollipop.

I need suggestion which is better in term of stability and for daily use : Omni 5.1.1 or AOSP 5.1.1 ?

Because from what I read on the first post, this ROM has problems with videos, but Omni didn't mention any of it.

Thanks.
[Galaxy Tab 10.1 Android Development] jerryhou85:
I use firefox browser which works well.
[Galaxy Tab 10.1 Android Development] CortoGR:
Saved

Thanks a lot all of you in here. I just saved an almost bricked and almost obsolete tablet. Thanks again you guys. :good:
[Galaxy Tab 10.1 Android Development] Okayguys:
Hey guys. Please help me, my computer does not see a tablet at all.

No display connection or on a computer or on a tablet, but it is charged.What could be the problem?

Advance thanks.

Cable changed. KIES installed.
[Galaxy Tab 10.1 Android Development] jerryhou85:
Did you try to change mode on tablet from charge only to MTP?
[Galaxy Tab 10.1 Android Development] Okayguys:
Yes. Default selected MTP.
[Galaxy Tab 10.1 Android Development] rbanavara:
Assuming you are using AOSP Android 5.1.1, kies does not work with this ROM.

To access MTP, pull down notification tray, click on USB notification and select MTP (irrespective what has been set as default).
[Galaxy Tab 10.1 Android Development] Okayguys:
The problem is that no notification climbs. I turned on debugging, but no effect is not given.
[Galaxy Tab 10.1 Android Development] BigBadVoodooDaddy:
Now that I was able to use AOSP 5.1.1 for nearly a week, my tablet stopped working when I was watching some youtube videos. So I pressed and held the power button to do a reset and found my tablet displaying "Samsung Galaxy Tab 10.1" until the battery died. I powered up the tablet, started the clockworkmod recovery and used the adb shell to get a log file. The log file did not contain any hint what's going on.

Now this is where the weird things came up: Whenever I did an "ls" in the /data directory, the tablet resetted after a short period. I got no result whatever. So I decided to format the entire /data partition with clockworkmod. I can wipe the dalvik cache, I can format the /cache partition, but I can't format /data: Everytime I try to format the /data partition, the tablet powers off after a short while.

Any hints what to do next (except dumping that damn thing into the trash bin)?
[Galaxy Tab 10.1 Android Development] BigBadVoodooDaddy:
I solved the problem by myself: The file system on /data was totally corrupted, which I detected with e2fsck. I couldn't format /data from inside clockworkmod with the "format /data" option, but I was able to format the partition from within the adb shell with mkfs. Now lollipop works almost like a charm.

I wrote almost, because two things are still not working (as they were not working the first time a week ago as well): The internet browser doesn't start and the home button doesn't work. But I think, I can fix these two things by myself. Thanks for your attention.
[Galaxy Tab 10.1 Android Development] mocro:
can you re upload the file? get a error from dropbox thx in advance
[Galaxy Tab 10.1 Android Development] jerryhou85:
I find another two links maybe useful for you:

http://forum.kodi.tv/showthread.php?tid=264103

http://forum.kodi.tv/showthread.php?tid=271607
[Galaxy Tab 10.1 Android Development] NickA555:
Doh!

Oh what an idiot I am...

Flashed my P7500 several nights ago having upgraded TWRP to 2.8.7.0. The tab has been running 5.1.1 now fine UNTIL I've just flashed the ICS audio HAL (p75xx-ICS_AudioHAL-AOSP_5.1.0-20150311.zip) and now each time the tab reboots it just goes into a loop of "Optimising APPS...", completes and then reboots and keeps repeating the process...

Am I able to undo this? (I never thought that it would have an impact on the tablet to be honest)

I've tried deleting the cache etc from TWRP but it's still not working. Any other suggestions?

Thanks in advance

Nick
[Galaxy Tab 10.1 Android Development] jerryhou85:
You can try to re-flash the ROM zip, but I highly suggest you do a full wipe and re-install the ROM zip...:cowboy:
[Galaxy Tab 10.1 Android Development] Osirus71:
Does anyones Chrome browser not start....When i try to launch it, it just looks like its going to open then nothing...already uninstalled and reinstalled the app with no change???????

Thx
[Galaxy Tab 10.1 Android Development] jerryhou85:
I have the same issue and it is somthing with chrome itself. I change to Firefox now. :cowboy:
[Galaxy Tab 10.1 Android Development] DE52:
Are you both using the latest chrome? It is no longer compatible with our tablet's hardware (because of Neon). You need to use chrome v49 or under if I remember correctly.
[Galaxy Tab 10.1 Android Development] jerryhou85:
Yes, I alwasy get Google Play update my apps to latest versions. I find Firefox can do the same job as Chrome, so I deal with it. ;)
[Galaxy Tab 10.1 Android Development] Smiff2:
little tip: you can use Link2SD to install Chrome 49 (or most other apps, space allowing.) to system. then if it's ever accidentally updated, you can roll back easily.

Can anyone remind me how to detach apps from the market so play store ignores them? i know about turning off auto updates but they still fill the list of available updates.
[Galaxy Tab 10.1 Android Development] slapshot63:
Trying to flash this now, but when I get to installing gapps it fails and I get a "Status 7" error. Any ideas?
[Galaxy Tab 10.1 Android Development] DE52:
I think titanium backup has this feature (detaching app from market). Not sure if you need the pro version to do it though
[Galaxy Tab 10.1 Android Development] NickA555:
Thanks mate. Just back from holiday now and successfully managed to connect my tab to my Win 10 machine to transfer the files to re-flash and it's working fine again now. Sorry for being an idiot, but what's the procedure for making a FULL wipe of the device as you mention? (I assume it's done via TWRP?)

I did the wipe cache/dalvik etc etc via TWRP...

Cheers

---------- Post added at 11:22 PM ---------- Previous post was at 11:03 PM ----------

Just had a look at the website for Titanium backup and indeed you need the Pro version for this... :)
[Galaxy Tab 10.1 Android Development] jerryhou85:
Full wipe means wipe out your current system and re-install a new one or the same one.

In TWRP, there is a menu called Wipe, an option is "clean system to flash new" or something like that. When switch ROM, also suggest go to Advanced Wipe and format /system. :D
[Galaxy Tab 10.1 Android Development] Smiff2:
some interesting Low Memory Killer values

72, 90, 108, 126, 144, 180

these are are a long way off the ones suggested by Kernel Adiutor (btw, don't try those presets, they severely cripple the tablet!)

are they optimised by author or defualts from Samsung, anyone played with these?

Also ZRAM.. google recommends somewhere 400MB and swapiness 100, anyone tried this?

i've already done the build.prop edit for low ram device. Kernel Adiutor is good.
[Galaxy Tab 10.1 Android Development] jacky03:
good
[Galaxy Tab 10.1 Android Development] Smiff2:
for performance i've done:

1.2Ghz CPU overlock

change scheduler to ROW (or deadline) default is BFQ seems a bit strange?

ZRAM 300MB, swappiness 100

LMK i've left at default above

multitasking seems better but scrolling is not very smooth, anyone have tips?
[Galaxy Tab 10.1 Android Development] davidow:
Thank you for your time and service dear developer for my old device. I experience a bootloop when I flash AudioHal is somebody experiencing this?. I have the p4wifi. Thank you in advance for any help.
[Galaxy Tab 10.1 Android Development] jerryhou85:
http://xdaforums.com/showpost.php?p=68073941&postcount=1852

Here is the same issue.

Suggest you give up on that AudioHal...
[Galaxy Tab 10.1 Android Development] davidow:
Thanks my friend. I think this zip fix audio issues on Netflix. Its sad not working. Regards.
[Galaxy Tab 10.1 Android Development] jerryhou85:
That AudioHAL supposes to work for dock, but it seems broken somewhere... :(
[Galaxy Tab 10.1 Android Development] dito_soft:
First... thank for your work Decaf... is great!!..

I rebuild my old tablet, all working fine but... the audio HAL create a endless reboot in "optimizing"... ¿can you fix it?... Thank in advanced!!
[Galaxy Tab 10.1 Android Development] jerryhou85:
So far that audio HAL has not much use but only troubles. Flash ROM zip again and DO NOT flash HAL zip.
[Galaxy Tab 10.1 Android Development] LoeWn:
i´m sorry if this is a stupid question but.. My device wifi-only kinda 'scrammbles' after waking up for a long time. The screen stays black with mostly green and white horizontal stripes flickering. Can this be fixed?

I am new to this device, and i can't find the answers.

Flashed twice, with latest twrp from OP
[Galaxy Tab 10.1 Android Development] dany1880:
Hi, this rom I revived my tablet, thank you very much, but I have a problem I can not play videos in 720p in youtube app
[Galaxy Tab 10.1 Android Development] jerryhou85:
I'll suspect a hardware failure, like a loose screen connector inside...

Do you have these issues in Stock ROM before?

---------- Post added at 07:14 AM ---------- Previous post was at 07:13 AM ----------

I remember this is a known issue, something related to hardware and software driver, no fix yet...
[Galaxy Tab 10.1 Android Development] jacky03:
Its a issue,cant play videos, I think it was a hardware wrong, the hardware does not support this ROM,Mr.Jerryhou85 I think he was right;)

Of course Cyanogenmod, stock ice, MIUI both can play 720p video,;)An old tablet,:angel:
[Galaxy Tab 10.1 Android Development] hamadatwinzzz:
Hi.thank you for your great work!

Hi.thank you for your great work!

I´m sorry if this is a stupid question but i want go back to original ice cream 4.0.4

can i make that white out problem:):):)
[Galaxy Tab 10.1 Android Development] jerryhou85:
Download stock ROM from Sammobile, flash with Odin.

http://xdaforums.com/showthread.php?t=2142268
[Galaxy Tab 10.1 Android Development] Pelau76:
Glaxy tab 10.1

Good morning, I remember what happened to my device.

You must flash a file by Odin.

Search for "rolling screens" in Galaxy tab 10.1.

If I remember correctly I solved it with a tutorial at www.galaxytabhacks.com
[Galaxy Tab 10.1 Android Development] hamadatwinzzz:
Thank you very much
[Galaxy Tab 10.1 Android Development] Chrono Leggionaire:
Can you upload your workin version of xposed framework please? I found and tried use few versions of "xposed-sdk22-5.1.1-arm-20150514.zip" etc. but device is stuck in a boot loop everytime. Thank you.
[Galaxy Tab 10.1 Android Development] meetkalamar:
sorry I'm not using this ROM anymore... I'm with the Nougat one now... But I will to find something to help you
[Galaxy Tab 10.1 Android Development] Chrono Leggionaire:
Thanks, I will try Nougat ROM in case if I will be not able make xposed workin on this ROM. :)
[Galaxy Tab 10.1 Android Development] decatf:
https://xdaforums.com/showthread.php?t=3034811
[Galaxy Tab 10.1 Android Development] Chrono Leggionaire:
Thank you, as I mentioned before I tried few versions for my device already-"sdk22, Lollipop,arm" (from official xposed topic). Unfortunately, its keep on boot logo for long time (for more than an hour) everytime, so its not regular progress I guess, although flashing xposed framework may take a long time (it takes almost half hour on my LG G Flex 2). So I hope someone can share tested and verified version of xposed framework for this ROM & device.

BTW. Thank you for your great a awesome work, ROM working flawless. :)
[Galaxy Tab 10.1 Android Development] decatf:
I have tested xposed-v87-sdk22-arm.zip on aosp-5.1.1-p4wifi-20160305 ROM. This is the official version of xposed.

http://dl-xda.xposed.info/framework/sdk22/arm/xposed-v87-sdk22-arm.zip

Where did you get xposed-sdk22-5.1.1-arm-20150514.zip from? The only source I can find is that it is an unofficial version of xposed.