[ROM][LineageOS-14.1] Samsung Galaxy Tab A 7.0 - SM-T280 (gtexswifi)

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Arninger

New member
Sep 28, 2020
2
0
Hey.
First of all thank you for creating this custom rom.
I recently got this tablet for pretty cheap and was hoping to get a bit more performance.

I have to confess I am a total noob when it comes to phones and tabets. But i followed the instructions and got it to run.

My only problems are the google apps. I downloaded the gapps like described and installed them with twrp, which prompted the installation as successful.
I don't have the play store though.
I downloaded the play-store as .apk, manged to install it, but when I start it it akes me to sign in. When i click on "sign in" nothing happens.
I tried it with multiple .apk versions from different sources. The same keeps happening.

What am I doing wrong? Is there any way to get the play store working?

Thanks. :)
 

c8m3r4n

Member
  • Sep 10, 2020
    11
    2
    How i updated my sm-t280.

    Hey.
    First of all thank you for creating this custom rom.
    I recently got this tablet for pretty cheap and was hoping to get a bit more performance.

    I have to confess I am a total noob when it comes to phones and tabets. But i followed the instructions and got it to run.

    My only problems are the google apps. I downloaded the gapps like described and installed them with twrp, which prompted the installation as successful.
    I don't have the play store though.
    I downloaded the play-store as .apk, manged to install it, but when I start it it akes me to sign in. When i click on "sign in" nothing happens.
    I tried it with multiple .apk versions from different sources. The same keeps happening.

    What am I doing wrong? Is there any way to get the play store working?

    Thanks. :)
    you need to sign in to your google account in setting under accounts...... add account if don't have a google account then sign up for one at Google .

    ---------- Post added at 02:26 PM ---------- Previous post was at 02:20 PM ----------

    you need to sign in to your google account in setting under accounts...... add account if don't have a google account then sign up for one at Google .
    you can download the aurora store apk and sign anonymously .
     

    Arninger

    New member
    Sep 28, 2020
    2
    0
    you need to sign in to your google account in setting under accounts...... add account if don't have a google account then sign up for one at Google .

    ---------- Post added at 02:26 PM ---------- Previous post was at 02:20 PM ----------


    you can download the aurora store apk and sign anonymously .

    For some reason I could not even add a google account.
    I managed to get it to work now. A couple of pages back I read something about mounting the system in TWRP befoe installing the Gapps, which I tried. Not sure if that made it work, but I have it running now.
     

    JNGBx

    New member
    Sep 20, 2020
    1
    0
    Really newbie question

    After the Rom installation, the storage used by the system is now 6.3gb. Was it really that small to begin with? Because our Tab A only has 8gb(7.28gb to be exact) of memory and there is not enough wiggle room to add other apps.

    Installed this rom to the tablet to be used by my niece and nephew for their online classes.

    Still thank you for the devs! Updating this device gave it a new life and purpose.
     

    javilepe

    New member
    Jul 6, 2016
    4
    0
    Thanks

    As a suggestion, it seems that since I installed this version the wifi is very slow and many micro cuts

    Even so, thank you very much, my tablet has a new life!
     

    hsejar

    Member
    Feb 22, 2016
    18
    2
    i envy all you guys..
    a noob question here.
    can i flash this rom on T285?

    i'm on jedld rom (L14.1) now. open camera works fine for pics but it wouldn't help me with other apps like whatsapp.
    am i missing something here?
    do i need to uninstall stock cam and make this open camera as a system app?
    any pointers would be great.
    thanks all
     
    Last edited:

    SnipoGamer

    Member
    Sep 5, 2020
    20
    0
    Nope

    i envy all you guys..
    a noob question here.
    can i flash this rom on T285?

    i'm on jedld rom (L14.1) now. open camera works fine for pics but it wouldn't help me with other apps like whatsapp.
    am i missing something here?
    do i need to uninstall stock cam and make this open camera as a system app?
    any pointers would be great.
    thanks all
    You cant. They have different firmwares and hardware.
     

    Verhuel15

    Member
    Dec 14, 2018
    10
    1
    I swear that I searched the answer here, but how I update from a build to another?
    Its the same process you download the latest you reboot to recovery and select the file and install the build because you are installing above the previous build this called dirty flash your previous data will not be deleted but some bugs may be occured .Now clean flash its been recommend most of the time but your data will be deleted so you should make a backup before you proceed with Migrate(free) or titanium backup(paid and free not user friendly) or Buggy backup pro(Its user friendly and its paid) for clean installastion you should go to twrp and select wipe format all data write "yes" for confirmation and after reboot to recovery mount your tablet to your pc copy the rom and install it.There are various videos and installastions for dirty and clean flash watch some videos and you will understand the proccess its all the same.its no necesary to be about this tablet or phone(the videos).
     

    Wixely

    Member
    Nov 5, 2012
    17
    2
    Thanks for adding build instructions to the github _mone. I've actually been trying to build it for a while now but it fails to boot the image once flashed. I'll try the instructions you have since they are a little different. Really thankful you are still working on this. Do you have any idea what is wrong with the GPS? It seems like it doesnt even give a option for it when I go to enable it.
     

    thek1s

    New member
    Oct 20, 2020
    1
    0
    help me

    I have tab A 7.0 T280
    i tried several times, installed twrp 3.4.0.3 all ok, then magik disk v.12, then T280XXU0AQA4-Magisk-v12.0-boot.img, then lineage-14.1-20200512-UNOFFICIAL-gtexswifi.zip, finally after doing mount system ---> open_gapps-arm-7.1-pico-20201017.zip.

    Reboot but nothing remains all with the samsung logo,

    Also tested with SuperSU-v2.82-201705271822.zip then T280XXU0AQA4-SuperSU-v2.82-boot.img, then lineage-14.1-20200512-UNOFFICIAL-gtexswifi.zip, finally after doing mount system ---> open_gapps- arm-7.1-pico-20201017.zip.

    Nothing, how can I solve? do i have to put the original rom back?
     

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    • 1
      The latest build works fine, but it having troubles with the WiFi, it doesn't see any wifi sometimes, and some times see it but doesn't connect, if can solve that, I will appreciate, thanks @mone
      1
      O WiFi esta desconectando e não esta localizando a rede WiFi! Depois de varias tentativas ele conecta!

      Translation: WiFi is disconnecting and not locating the WiFi network! After several attempts it connects!

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    • 7
      2okPze5.png


      LineageOS is a free, community built, aftermarket firmware distribution of Android 7, which is designed to increase performance and reliability over stock Android for your device.

      LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.

      All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review. You can also view the Changelog for a full list of changes & features.

      Instructions :
      • Download the latest build and (optional) GApps
      • Boot to recovery
      • Flash the latest build
      • If you want GApps you have to mount system first:
        Mount -> System -> Go back to the first page and install GApps as normal
      • Reboot
      Downloads :
      Reporting Bugs
      • DO NOT Report bugs if you're running a custom kernel or you installed Xposed
      • Grab a logcat right after the problem has occurred. (Please include at least a few pages of the log, not just the last few lines, unless you know what you're doing.)
      • If it is a random reboot, grab /proc/last_kmsg. (Do not bother getting a logcat unless you can get it just before the reboot. A logcat after a reboot is useless)
      Remember to provide as much info as possible. The more info you provide, the more likely that the bug will be solved. Please also do not report known issues. Any bug not reported in the bug report format below may be ignored.

      Code:
      What is your--
      LineageOS version:
      LineageOS Download url:
      Gapps version:
      
      Did you--
      wipe:
      restore with titanium backup:
      reboot after having the issue:
      
      Are you using--
      a task killer:
      a non-stock kernel:
      other modifications:
      
      Provide any additional information (observations/frequency of problem/last version it worked on/etc) as needed:

      Known Bugs :
      • Camera doesn't work (use opencamera instead)
      • RadioFM doesn't work

      Credits :

      Source :

      XDA:DevDB Information
      LineageOS for gtexswifi, ROM for the Samsung Galaxy Tab A series

      Contributors
      _mone
      Source Code: https://github.com/lineageos

      ROM OS Version: 7.x Nougat
      ROM Kernel: Linux 3.10.x
      ROM Firmware Required: T280XXS0ARJ2

      Version Information
      Status:
      Testing

      Created 2020-09-03
      Last Updated 2020-09-08
      6
      New build: lineage-14.1-20210209-UNOFFICIAL-gtexswifi.zip

      You can now format the external sdcard as internal storage
      4
      For anyone trying to figure out how to get this or other ROMs working on the T280 with a valid google account (without FRP ruining all of your fun), here is what you need to know:

      * Follow instructions to install custom bootloader, ROM and GApps Pico (see OP)
      * Download ADB here: https://dl.google.com/android/repository/platform-tools-latest-windows.zip
      * Unzip to a folder, open a cmd prompt and navigate to that folder
      * On the tablet, perform initial setup and go into settings, Developer Options and enable root access (ADB only)
      * Connect your tablet to your PC.
      * Run the following commands:
      * adb devices (confirm that adb "sees" your device as connected)
      * adb root
      * adb remount
      * adb pull /system/build.prop
      * Now you will have a copy of build.prop in your adb folder. Edit the file with notepad, or some other simple text editor that will not insert hidden characters.
      * Find the following entry: ro.frp.pst=
      * Comment it out (disable it) by adding a # at the beginning of the line. Ex: # ro.frp.pst=
      * save the file
      * Go back to adb and run the following commands
      * adb remount -o rw /system
      * adb push build.prop /system/build.prop
      * adb shell chmod 644 /system/build.prop
      * adb remount -o ro /system
      * adb reboot
      * Add your google account. You could add your account before modifying build.prop, but if you forget and reboot you'll be out of luck and will have to start from scratch flashing the factory ROM, etc.
      * That should do it! You should now be able to reboot as much as you like.
      * If you want extra assurance in the event that build.prop ever gets overwritten, you can blank out the FRP partition with FRP destroyer (I recommend): https://forum.xda-developers.com/t/frp-destroyer-flashable-zip.3920067/

      When I tried FRP destroyer without modifying build.prop, I never got to install it with TWRP as FRP would already be blocking me from booting. It is possible that I was doing things in the wrong order, but I thought I would share just in case someone finds themselves stuck like I was. I am not a pro at this, I have used CM on a few devices in the past but have never dealt with FRP before. I prefer to share my learnings to hopefully help others in the future.

      Cheers!

      SCH00N3R
      3
      New build: lineage-14.1-20210207-UNOFFICIAL-gtexswifi.zip

      GPS should work now.
      Let me know.

      I'm having difficulties uploading new builds.. if anyone is building for themselves and want to share builds with the community, feel free to do it here.
      2
      I'm a newbie in this topic. Can you guide me how to do it on my device? At this point I made everything like expalained in the link below and I'm stuck on error 7 in TWRP. View attachment 5177541
      Hi,
      for error 7 : see here
      And for the way of how to proceed, I suggest you watch the youtube video from Mone:
      I used : odin 3.10.7;twrp_3.2.1-1_sm-t280_080118;lineage-14.1-20200929-UNOFFICIAL-gtexswifi;
      and after installation of the custom rom : Magisk 20.4