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[ROM][UNOFFICIAL][10] LineageOS 17.1 for Samsung Galaxy Tab S (SM-T700, SM-T705, SM-T800, SM-T800, SM-P600)

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H421

Member
Jun 15, 2021
5
0
I am sm-t750, now using crdroid, everything seems to be working normally, boot image patch has been installed,, the chrome I installed is still shutting down frequently, force close, does anyone know the problem?

one more thing, cellular data can't be connected
 
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I will try to patch RAM, LMK and ZRAM, anyway please try this first update for klimtlte temporaly with GPU and CPU patched
thank you so much for this! using it now on my T700 and it's so much smoother than stock kernel (not a knock on the dev, of course ✌️). first boot after install (prior to magisk) bootlooped on me. took out my sd card (previously partitioned 80% for ext and the rest for int storage), rebooted and all good! sd card works too as before 👍
 

kamelot1966

New member
Mar 28, 2018
2
0
My tablet is finally working properly again! Thanks for your work, really great! Thank you for the rom!
Endlich läuft mein Tablet wieder vernünftig! Danke für Deine Arbeit, echt super! Vielen Dank für die rom!
 
something went wrong on my machine I can't build my boot image I don't know what happen too, so I will investigate and try to fix it asap
Thanks for your modified boot.img, I get fewer forced shutdowns now. If you plan on updating it may I suggest changing the max charging current to be higher? As we have been using 2000-3000mA on LOS14.1 for years with no issues
 
I found that sporadic Chrome crashes, Gallery and other apps were due to a well-known Android Webview.apk bug.
Following the web's recommendations to resolve, I deleted data and cache and then turned off the system app "Android Webview.apk".
Then from Google Play I installed the latest version of "Android Webview.apk" and "Android Webview Dev.apk".
For the time being (two days) all crasches have disappeared
 
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Samtab800

Member
Jun 24, 2021
5
0
Hello,

thanks everyone for android 10 on SM-T800.
After many crashes I installed magisk via trwp (the latest one).
I used easy dpi changer to change the resolution to
1920 width x 1200 height.
To use netflix on a rooted tablet you must via
magisk install the liboemcrypto module first otherwise netflix will hang while playing .... Restart and install netflix.
I invite the creators of this rom to continue their efforts so that we can again use the initial resolution 320 dpi
2560 x 1600 if it is physically possible.
Greetings
 

Samtab800

Member
Jun 24, 2021
5
0
thanks cicisbeus,

I m come back on resolution 320 dpi 2560 x 1600

i'm testing on SM-T800.

it seems to be working.
I tried with chrome and then
dolphin navigator.
 
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Top Liked Posts

  • 1
    As @ISoreo suggested, I'll do an entire rebuild of 'my' boot image without any cached files and a fresh environment next Monday or Tuesday. I hope this will fix the reboots...
    1
    Disclaimer: English is NOT my first language. If any part appears to be ambiguous, or redundant, please let me know!

    1. Stability :
    Well, screw what I said before :(
    I've been too foolish to conclude with just ebook reading and Netflix.​
    I get random app crashes (disappearing) - from browser, to Google News, and even ... a file manager. But once you reload the app, it seems to behave as expected.​
    o_O Small annoyance:I am asked to choose what to do with my SD card (integrated storage or removable) and either choice forces you to format your card before any app can access it!!! :eek:
    It's been great.
    I don't use GApps, I use MicroG.
    Initially, I got quite a bit of random app "disappearances" (they crashed but with no force close message or anything like that). What I got was "Google service stopped working".
    Solution (or so I think):
    1. I flashed masdaster's boot.img - the one with many CPU governors to choose from. Not sure if he's released any newer ones.
    2. And I use Smartpack kernel manager to set a few things, these were suggested in a post somewhere like page 15-18. I can't remember who posted but they work really well.
    Here's the SmartPack config:​
    [I use 1600] CPU max frequency 1700 (1800 makes it run too hot, might go down to 1600 if 1700 still runs hot). Min 100hz (apply on boot)​
    Governor at interactive​
    [I don't use this line, just leave it as "stock"] Target loads at 75 600000:75 800000:85 1500000:90 1700000:95​
    Multi-core power saving enabled​
    CPU boost enabled​
    Kernal samepage off and disabled on boot​
    Low memory killer off and disabled on boot (Low memory killer has to be disabled on very device reboot from the app)​
    Z-ram 4096 and lz4 compression. Might try lzo later. (apply on boot)​
    Virtual memory turntable on​

    2. Smoothness:
    Overall, this Android 10 mod IS AS SMOOTH AS I'D EXPECT FROM A GOOD MODERN MID-RANGE TABLET.​
    I think this thing is running on something like eMMC 5.0 or so, just before Ss made the jump to UFS 2.1. Couple that with an ancient memory sub-system (not to mention that this has been a traditionally weak area for Samsung), this level of responsiveness and smooth animation is really beyond imagination.​
    Who would have thought Android 10 would run better on this dinosaur than all the "lag fix" Android 7 and 6 modded ROMs before that?!

    3. Feature suggestion:
    I would like to see "spoofing device fingerprint" based on "universal safetynet fix" to pass CTS check. If this is made possible, Netflix HD might happen!​
    The fix is only for ARMv8 64 bit so it cannot be flashed on our Tab Ses.
    However, the developer said on their GitHub page that it should be baked into the ROM but they have made it as a flashable magisk module for other people to use with their ROM of choice.
    I am NOT a developer. I know nothing about coding. I can only follow instructions (and to some extent, understand some of those instructions). So please excuse me if I happen to suggest something unfeasible.
    4. Last question: are we still using 8224Freak's original rom from post #1 or has there been another update (since 5th May)? Or has someone taken over?

    Again, English is NOT my native tongue so if there's any part that makes absolutely no sense, please let me know.
    1
    ^from what I've read, yes, we're still on the 5-May ROM with some of the wizards here trying to improve on it for most devices via the kernel
  • 7
    I've successfully ported ISoreo's modifications to the SM-T805 chagalllte. My device is booting up fine and the system runs snappier. Apps are loading 'fast' and the animations are smoother (no stuttering). Thank you very much @ISoreo!!

    The only modifications I didn't apply are all the governors ISoreo added. At the moment the default is ondemand which is the same as the default one of ISoreo's boot.img. If someone is missing them, I will add them in the future.

    Here is the link for downloading:
    2
    On the unmodified lineage 17 rom I have experienced some instability so far. Other than being somewhat laggy, sometimes it will do the reboot thing, but it is not as catastrophic as it is with masdaster's kernel. Sometimes background processes will crash, like VPNs for example. One thing I have noticed is that the reboots don't take as long as a normal user initiated reboot.
    There is also a problem with extremely slow charging.

    Might be going back to 14 soon.
    Regarding the reboots:
    Do you see the device splash screen or the boot animation after it crashes?

    I tried to track it down... This takes some time and I'm not that good in debugging low level code. I've read through huge parts of your log and maybe I found a clue. I'll try to disable some memory optimizations. Your crashes seem to be memory related (YouTube and system).
    2
    let's try adb logcat -b all -v time > log.txt
    it's should take more detail
    update : his log too difficult to read but

    [07-25 12:42:09.668 3252:14283 I/Telecom]
    PhoneAccountRegistrar: getSimCallManager: SimCallManager for subId 1 queried, returning: null: [email protected]
    Thank you! I have excluded too many rows. xD

    One other thing:
    I've extracted Deathly Adiutor from LineageOS 14.1 because I could not find it anywhere. If someone needs it, here it is. All visible features are working with modified boot.img as far as I can see.
    1
    Can you list the changes you have made - and will you do them for t805 as well? :)
    I am not sure i can do it or not because most of all on sm-t805 they cant booting up, they told me it freeze on boot screen, mine on sm-t705 that one freeze too but take sometime to booting up around 5-7 seconds
    1
    ^from what I've read, yes, we're still on the 5-May ROM with some of the wizards here trying to improve on it for most devices via the kernel
  • 59
    Hello friends,

    I tried to update my old Samsung Galaxy Tab S devices with the latest Android 10 (Lineage 17.1). I would like to make the build available for you guys as well.

    Special thanks to the teams at Exynos5420 and LineageOS for the sources.

    Devices:
    1. Samsung Galaxy Tab S 8.4 WiFi (klimtwifi) SM-T700
    2. Samsung Galaxy Tab S 8.4 LTE (klimtlte) SM-T705
    3. Samsung Galaxy Tab S 10.5 LTE (chagalllte) SM-T805
    4. Samsung Galaxy Tab S 10.5 WiFI (chagallwifi) SM-800
    5. Samsung Galaxy Note 10.1 Edition 2014 (n1awifi) SM-P600

    I will create new builds from time to time.

    Installation:
    1. Flash latest official Samsung Firmware with ODIN
    2. Flash latest TWRP Recovery https://twrp.me/Devices/Samsung/
    3. Wipe Data
    4. Install ROM.ZIP with TWRP https://luis-builds.de/downloads/lineageos/misc/
    5. Install latest GApps with TWRP (ARM/Android10) https://opengapps.org/
    6. Reboot and Enjoy
    7. Optional: Install Magisk

    Download the file:
    https://luis-builds.de/downloads/lineageos/misc/

    Sources:
    https://github.com/LineageOS (LineageOS 17.1)
    https://github.com/exynos5420/ (Kernel, Device, Vendor)

    Greetings Frank
    7
    I've successfully ported ISoreo's modifications to the SM-T805 chagalllte. My device is booting up fine and the system runs snappier. Apps are loading 'fast' and the animations are smoother (no stuttering). Thank you very much @ISoreo!!

    The only modifications I didn't apply are all the governors ISoreo added. At the moment the default is ondemand which is the same as the default one of ISoreo's boot.img. If someone is missing them, I will add them in the future.

    Here is the link for downloading:
    7
    I'm finding the config since zram doesn't work also the can't keep it in ram. moreover, those apps were kill by the LMK when I have try to open a lot of apps but it's always killed it

    Edited : I got these value from LOS 14.1 might be useful a lot
    Markdown (GitHub flavored):
    echo 1262 1212 1162 1112 1075 1037 1000 975 950 925 900 875 850 850 1150 1087 1037 987 950 912 875 850 850 850 850 850 > /sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table
    echo 177 > /sys/devices/platform/mali.0/minclock
    echo 1 > /sys/devices/platform/mali.0/dvfs
    echo 600 962500 > /sys/devices/platform/mali.0/volt_table
    echo 533 937500 > /sys/devices/platform/mali.0/volt_table
    echo 480 900000 > /sys/devices/platform/mali.0/volt_table
    echo 420 862500 > /sys/devices/platform/mali.0/volt_table
    echo 350 812500 > /sys/devices/platform/mali.0/volt_table
    echo 266 762500 > /sys/devices/platform/mali.0/volt_table
    echo 177 725000 > /sys/devices/platform/mali.0/volt_table
    echo 100 725000 > /sys/devices/platform/mali.0/volt_table
    echo 1000 > /sys/devices/platform/sec-battery/ac_input_curr
    echo 1000 > /sys/devices/platform/sec-battery/ac_chrg_curr
    echo 2048 > /sys/block/mmcblk0/queue/read_ahead_kb
    echo 1024 > /sys/block/mmcblk1/queue/read_ahead_kb
    echo 0 > /sys/block/mmcblk0/queue/iostats
    echo 0 > /sys/block/mmcblk0/queue/add_random
    echo 1 > /sys/kernel/mm/uskm/deferred_timer
    echo 400000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
    
    LMK Fore 72 Vis 90 Sec 108 Hidd 126 Content 144 Empty 180 MB unit
    VM Dirty Ratio 20 % Dirty Background Ratio 5% Dirty Expire Centisecs 200 cs
    Overcommit Ratio 50% Dirty Writeback Centisecs 5000cs Swappiness 100%
    VFS Cache Pressure 99
    Min free Kilobytes 2839


    Okay so I played around with stuff a bit, the tablet is running smoother and snappier now. And much much cooler. Hope this helps everyone.

    I am using smartpack kernel manager
    Here are the settings I am using
    1. CPU max frequency 1700 (1800 makes it run too hot, might go down to 1600 if 1700 still runs hot). Min 100hz (apply on boot)
    2. Governor at interactive
    3. Target loads at 75 600000:75 800000:85 1500000:90 1700000:95
    4. Multi-core power saving enabled
    5. CPU boost enabled
    6. Kernal samepage off and disabled on boot
    7. Low memory killer off and disabled on boot (Low memory killer has to be disabled on every device reboot from the app)
    8. Z-ram 4096 and lz4 compression. Might try lzo later. (apply on boot)
    9. Virtual memory turntable on
    10. Entroy enabled on boot and read 256 and write 512
    11. Battery enabled on boot and charging option on
    12. IO scheduled disabled on boot

    if anyone improves on these settings please update on this thread. We would all appreciate it.
    4
    Could you tell where I can change it? I can't see it in display settings.
    In the other hand, Does anyone has impression that the device is running very slowly? What can help to change it? Kernel change?

    I did complete wipe from TRWP all settings, cache, internal storage and other stuff.
    I've got SM-T800

    Cheers
    you can use ADB


    Bash:
    adb shell wm size 1200x1920
    
    adb shell wm density 240

    reference: https://nerdschalk.com/change-screen-resolution-adb-android/
    4
    update for klimtlte : patched gpu up to 600 MHz from 533 MHz should be more smooth, add more cpu governors, i am trying to figure out about our ZRAM and lowmemorykiller how i can fix this problem