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[ROM][ROOT][STOCK][TINKER-EDITION][5.1.1] Galaxy Tab A 7.0 2016 SM-T280/T285

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By jedld, Senior Member on 6th September 2016, 04:56 AM
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Samsung Galaxy Tab A 7.0 LTE/WIFI 2016 TINKER EDITION ROM (DEOXED/ROOT/XPOSED)
============================================

Update 01/04/2017
-----------------------

Tinker Edition V5.1 is now out.

* Re-added Samsung stock camera and gallery
* revert back to stock vold to fix issues people are having with micro sdcards

Now available for the SM-T285, SM-T280 to follow

Update 10/29/2016
------------------------
TWRP for the SM-T285 here

Early Build of TWRP for the T285 (see post by @ashyx will update this if an official version is released. The T280 version should be available not far behind I believe

Update 09/21/2016
-----------------------
V5 now out (root, deodexed, xposed) for the SM-T280/T285, still working on the SM-T280

Update 09/20/2016
------------------------

Turns out this device is not as locked as we all thought it too be. See thread below for my ordeal and more details:

http://forum.xda-developers.com/gala...-2016-t3431022

Modifications:
===========

* Based on LMY47V.T285XXU0APCN
* Stock Boot and Recovery (Not much choice since the bootloader is locked)
* Busybox
* Hijacked Vold (using CM 12.1 sources) to run shell scripts stored in /data/scripts/vold.init
* Removed Touchwiz launcher and redundant samsung apps (Hancom office, Kidzone), replaced with Trebuchet
* Enabled r/w to the external SD Card
* Dolby Atmos mod (09/11/2016) (thanks to @Nando14sunny)
* Deodexed/Xposed (09/13/2016) (thanks to @wanam and @rovo89)
* soft linked /etc/hosts to /data/scripts/hosts and can be edited using adb shell (09/13/2016) (thanks to @venomrat)
* V5: root chainfire's SuperSu 2.78 (09/21/2016) (thanks to @Chainfire)
* stock boot animation

Special thanks also to @ashyx for initially taking a look at this device , I haven't given up on rooting this device yet.
Special thanks to @klemen241 for helping me try out the SM-T280 build

Haven't done extensive testing on Xposed modules, but the pokemon go iv mod/hacked worked and that was good enough for me (Before pokemon Go was patched). If you use this ROM feedback is highly appreciated

NOTES: To be safe, perform a cache wipe using recovery. I didn't need to do this personally but I haven't tested all use cases
NOTES: Since this rom is deodexed, the first boot will take quite a while, so please be patient .
NOTES: if you are coming from V2 and are using the mount_ext4 apps2sd scripts please update it for additional support for the V3 ROM HERE:
https://github.com/jedld/smt285_data_scripts

NOTES: (09/13/2016) Unfortunately, the V3 build fails the Google SafetyNet check, will be a problem if you play Pokemon Go

Other Notes: Removed support for zygote.init scripts in V3 as I am now using the app_process32_xposed binary, will work to get this back soon. I haven't had a need for zygote scripts though. The vold.init scripts shoud still work as before if you are using the apps2sd script

Installation Instructions:

Odin or Heimdall Required. I you are coming from the Stock Rom please wipe/factory reset to be sure. If you are upgrading from V1 or V2 you are not required to wipe unless there are problems. If you are upgrading to V3 cache wipe is recommended using recovery.

--FLASH AT YOUR OWN RISK--

1. Make sure to backup of your data and have a copy of your stock Rom in case something goes wrong.
2. Make sure your device is OEM unlocked. (Enable Developer settings and Enable the OEM unlock settings)
3. Extract ZIP file below and flash the tar.md5 file using ODIN, for details on this kindly look for instructions in the xda site.
4. For Heimdall you can use 7zip to extract the system.img from the tar.md5 and just flash the system.img itself.

Choose the appropriate download for the model (wifi only T280/ lte T285) that you have:

WIFI ONLY Download (SM-T280)
==========================

Link (V5 Deodexed, Rooted and Xposed):
https://mega.nz/#!0Jdg0a4D!XWLES1BwC...awYHydQ_scV2dI

Link (V3 Deodexed and Xposed - with special thanks to wanam with his custom Xposed build (86.0), and credits also to rovo89):
Download from Mega (v3 09/13/2016)

LTE Version Downloads (SM-T285)
===========================
Link (V5.1 Deodexed, Rooted and Xposed):
https://mega.nz/#!ZFFTFKYZ!NAeajNUjI...G0Ut8Buz_6eCgU

Link (V3 Deodexed and Xposed - with special thanks to wanam with his custom Xposed build (86.0), and credits also to rovo89):
Download from Mega (v3 09/13/2016)

Link (Original V2 odexed version):
Download from Mega (V2 09/11/2016)

If you have suggestions, send me a PM.

Other Notes (So people don't have to ask):

* I've tried to run superuser daemonsu, but unfortunately the sepolicy scopes for vold and zygote are too narrow in this device for supersu to use despite being root. In theory a version of daemonsu can be made specifically to run on this device with a somewhat castrated functionality though I don't have access to the source code to figure it out. Navigating the sepolicy landmine is hard.


WIFI ISSUES
=========

There are reports of wifi problems with the latest build due to wrong permissions with dhcp hooks, if so you can do the following (big thanks to @_mone):

Using adb shell:

Code:
su
mount -o rw,remount,rw /system
chmod 755 /system/etc/dhcpcd/dhcpcd-run-hooks
mount -o ro,remount,ro /system
/system is readonly by default, which is why you need the remount commands. Reboot your device after just to make sure.
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7th September 2016, 03:13 AM |#2  
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Hi,

The mount_ext4_sdcard.sh script moves all apps to SD card on reboot?

Edit: did not read till the end. System apps are not move.
7th September 2016, 04:54 AM |#3  
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Quote:
Originally Posted by venomrat

Hi,

The mount_ext4_sdcard.sh script moves all apps to SD card on reboot?

Edit: did not read till the end. System apps are not move.

It won't by default for safety purposes, however you are welcome to edit the script and try to move them all
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7th September 2016, 01:24 PM |#4  
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Quote:
Originally Posted by jedld

It won't by default for safety purposes, however you are welcome to edit the script and try to move them all

Thanks for your hard work. It's a pity this device is not as popular as their other models or more people would have already signed the petition.
I regret not doing more research before buying this tablet.
10th September 2016, 09:32 AM |#5  
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Hello there

At first i want to thank you for your hard work so far

Then i've got a question,

I just built this Tablet (LTE version) in my car. Now i'm on to configure it with Tasker to "act more like a car radio". It was really hard, because of the non rooted device.. But i did it so far

I used a sound mod, called Dolby Atmos (i think it's from lenovo?) on allmost every of my rooted devices to improve its sound.
I'm wondering if it would be possible that you could build in this mod inside a rom for me?
Normally i flash it as a zip file via a custom recovery so it's in the system files. but maybe you could edit it in there before the rom get flashed via odin? I could give you the zip, if u dont find it. It would be really nice!

Greetings from germany
10th September 2016, 10:26 AM |#6  
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Quote:
Originally Posted by Nando14sunny

Hello there

At first i want to thank you for your hard work so far

Then i've got a question,

I just built this Tablet (LTE version) in my car. Now i'm on to configure it with Tasker to "act more like a car radio". It was really hard, because of the non rooted device.. But i did it so far

I used a sound mod, called Dolby Atmos (i think it's from lenovo?) on allmost every of my rooted devices to improve its sound.
I'm wondering if it would be possible that you could build in this mod inside a rom for me?
Normally i flash it as a zip file via a custom recovery so it's in the system files. but maybe you could edit it in there before the rom get flashed via odin? I could give you the zip, if u dont find it. It would be really nice!

Greetings from germany

we could try, could you point me to a rom that has the specified libraries for Dolby?
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10th September 2016, 08:38 PM |#7  
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Thank you, for the fast answer!

Here is the flashable zip of the Dolby Atmos, mod i used successfully on my other devices:

Mega

Greetings
11th September 2016, 12:49 AM |#8  
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Quote:
Originally Posted by Nando14sunny

Thank you, for the fast answer!

Here is the flashable zip of the Dolby Atmos, mod i used successfully on my other devices:

Mega

Greetings

Ok, wish granted, updated the ROM to include Dolby ATMOs, just redownload the ROM from the link in the main post.
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11th September 2016, 07:56 AM |#9  
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Quote:
Originally Posted by jedld

Ok, wish granted, updated the ROM to include Dolby ATMOs, just redownload the ROM from the link in the main post.

Wow thank you! I'll test it right now

Edit:

It works like a charm! You really improved my devie with it!
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11th September 2016, 10:18 AM |#10  
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Hi,

If it's not too troublesome, perhaps the next version can symlink the host file to a r/w folder so that ads can be blocked.

Thanks.
12th September 2016, 12:25 AM |#11  
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Quote:
Originally Posted by venomrat

Hi,

If it's not too troublesome, perhaps the next version can symlink the host file to a r/w folder so that ads can be blocked.

Thanks.

Possible, though the only r/w partition is data and cache, and it may potentially cause problems when you suddenly try to do a wipe. I'm working on deodexing and porting xposed framework for now. Either that if you've got some IP addresses that need to be blocked I can create an edition that has those entries. I'll see what I can do though there might be away to do it without breaking factory reset/wipe cache.
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