View source for Samsung Galaxy Tab S 10.5" (SM-T800)

=Resources=
* [https://www.samsung.com/us/business/support/owners/product/galaxy-tab-s-10-5-wi-fi/ Official Samgsung Page for Samsung Galaxy Tab S 10.5"] - Good for them for still having this page available!
* [https://wiki.lineageos.org/devices/chagallwifi/ LineageOS page]
* [https://www.gsmarena.com/samsung_galaxy_tab_s_10_5-6438.php GSM Arena Page]
* [https://github.com/exynos5420/android_kernel_samsung_exynos5420 Linux Kernel Source Code for the Samsung Exynos 5420 Chipset]
* [https://xdaforums.com/t/rom-unofficial-10-lineageos-17-1-for-samsung-galaxy-tab-s-10-5-wifi-sm-t800-chagallwifi.4388165/ XDA Forums >> Unofficial LineageOS 17.1 ROM for Samsung Galaxy Tab S 10.5 WiFi (SM-T800 - chagallwifi)]
* [https://xdaforums.com/t/rom-unofficial-10-lineageos-17-1-for-samsung-galaxy-tab-s-sm-t700-sm-t705-sm-t800-sm-t800-sm-p600.4270943/ XDA Forums >> Unofficial LineageOS 17.1 ROM for Samsung Galaxy Tab S (SM-T700, SM-T705, SM-T800, SM-T800, SM-P600)]
* Latest Custom ROM Build ( as of 2025-06-14 ) : Samsung T700/5 T800/5 LineageOS-17.1-2-1-2025 ( [https://github.com/HazouPH/android_device_samsung_universal5420-common/releases/download/1.9/lineage-17.1-20250102-UNOFFICIAL-chagallwifi.zip lineage-17.1-20250102-UNOFFICIAL-chagallwifi.zip] )
** WARNING: !!! <font color=red>Lots of things broken on this ROM including camera, fingerprint reader, GApps, etc.!</font>
** [https://github.com/HazouPH/android_device_samsung_universal5420-common Source code of this ROM (android_device_samsung_universal5420-common) by HazouPH]
* Latest Custom ROM Build ( as of 2025-06-21 ) : [https://xdaforums.com/t/rom-unofficial-13-lineageos-20-for-samsung-galaxy-tab-s-10-5-sm-t805-sm-t800-chagalllte-chagallwifi-alpha.4577223/ LineageOS 20 for Samsung Galaxy Tab S 10.5 (SM-T805/SM-T800 - chagalllte/chagallwifi )] - Alpha
** WARNING: !!! <font color=red>Lots of things broken on this ROM including camera, fingerprint reader, Infrared, and there is a memory leak with Chrome browsers!</font>
** [https://github.com/retiredcrave/android_kernel_samsung_exynos5420/tree/lineage-21.0 Source code of this RPM ( android_kernel_samsung_exynos5420 ) by retiredtab
* [https://dl.twrp.me/chagalllte/ TWRP for chagalllte] -- Latest version as of 2025-06-21 is [https://dl.twrp.me/chagalllte/twrp-3.7.0_9-0-chagalllte.img.html twrp-3.7.0_9-0-chagalllte.img]

=Battery Details=
* Part Number: AA2G@08xS/7-B
* Battery Model #: EB-BT800FBU
* Watt Hours: 30.02 Wh
* Voltage: 3.8 V
* Milliamp Hours: 7900 mAh
* iFixit Part Number: IF252-015-1
* Battery for Sale
** iFixIt: [https://www.ifixit.com/products/galaxy-tab-s-10-5-battery Galaxy Tab S 10.5 Battery] ( $14.99 as of 2025-06-24 but OUT OF STOCK! )
** Amazon: [https://www.amazon.com/7900mAh-30-02Wh-Battery-EB-BT800FBU-Samsung/dp/B07CNZMNQS EB-BT800FBU EB-BT800FBC Tablet Battery Replacement for Samsung Galaxy Tab S 10.5 SM-T800 SM-T801 SM-T805 SM-T805C SM-T805W T805Y T805M SM-T807 SM-T807A SM-T807P SM-T807V T807T(3.8V 7900mAh)] ( $18 as of 2025-06-24 and IN STOCK )

=Battery Replacement=
Battery Replacement Guides for the Samsung SM-T800:
* [https://www.youtube.com/watch?v=s46NaOnx3iM How to Replace Your Samsung Galaxy Tab S 10.5 SM-T800 Battery] by [https://www.youtube.com/@NewLife2OldStuff NewLife2OldStuff]
* iFixIt [https://www.ifixit.com/Guide/Galaxy+Tab+S+10.5+Battery+Replacement/50302 Galaxy Tab S 10.5 Battery Replacement]

=Getting Model/Model Variant/Product Name/Bootloader Version/Android Release/Serial Number=
All of this information can be gotten from an adb shell. From your machine with the tablet connected via USB.<br>
Don't ask me why there are so many different identifiers, but here they are:

 
 # Model
 ~ # getprop ro.product.model
 SM-T800
 
 # Model Variant
 ~ # getprop ro.product.device
 chagallwifi
 
 # Product Name
 ~ # getprop ro.product.name
 chagallwifixx
 
 # Bootloader version
 ~ # getprop ro.boot.bootloader
 T800XXU1ANFB
 
 # Android version/release
 ~ # getprop ro.build.version.release
 6.0.1
 
 # Serial number ( Not a real serial number below but this is the format ) 
 ~ # getprop ro.serialno
 023418ad419c1751

And there's a lot more you can get just by running <tt>getprop</tt>
<pre>
~ # getprop  | grep 'ro.boot\|ro.build\|ro.product'
[ro.boot.bootdevice]: [dw_mmc.0]
[ro.boot.bootloader]: [T800XXU1ANFB]
[ro.boot.console]: [ttySAC2]
[ro.boot.debug_level]: [0x4f4c]
[ro.boot.emmc_checksum]: [3]
[ro.boot.hardware]: [universal5420]
[ro.boot.odin_download]: [1]
[ro.boot.sec_atd.tty]: [/dev/ttySAC2]
[ro.boot.selinux]: [permissive]
[ro.boot.serialno]: [023418ad419c1751]
[ro.boot.warranty_bit]: [1]
[ro.bootimage.build.date.utc]: [1617650748]
[ro.bootimage.build.date]: [Mon Apr 5 19:25:48 UTC 2021]
[ro.bootimage.build.fingerprint]: [samsung/omni_chagallwifi/chagallwifi:6.0.1/MOB31K/26:eng/test-keys]
[ro.bootloader]: [T800XXU1ANFB]
[ro.bootmode]: [unknown]
[ro.build.characteristics]: [default]
[ro.build.date.utc]: [0]
[ro.build.date]: [Mon Apr  5 19:24:56 UTC 2021]
[ro.build.display.id]: [omni_chagallwifi-eng 6.0.1 MOB31K 26 test-keys]
[ro.build.flavor]: [omni_chagallwifi-eng]
[ro.build.host]: [93f70f4836da]
[ro.build.id]: [MOB31K]
[ro.build.tags]: [test-keys]
[ro.build.type]: [eng]
[ro.build.user]: [jenkins]
[ro.build.version.all_codenames]: [REL]
[ro.build.version.base_os]: []
[ro.build.version.codename]: [REL]
[ro.build.version.incremental]: [26]
[ro.build.version.preview_sdk]: []
[ro.build.version.release]: [6.0.1]
[ro.build.version.sdk]: [23]
[ro.build.version.security_patch]: [2016-11-05]
[ro.product.board]: [universal5420]
[ro.product.brand]: [samsung]
[ro.product.cpu.abi2]: [armeabi]
[ro.product.cpu.abi]: [armeabi-v7a]
[ro.product.cpu.abilist32]: [armeabi-v7a,armeabi]
[ro.product.cpu.abilist64]: []
[ro.product.cpu.abilist]: [armeabi-v7a,armeabi]
[ro.product.device]: [chagallwifi]
[ro.product.locale]: [en-US]
[ro.product.manufacturer]: [samsung]
[ro.product.model]: [SM-T800]
[ro.product.name]: [chagallwifixx]
</pre>

=Downloading Stock Firmware=
Stock firmware can be downloaded here: https://samfw.com/firmware/SM-T800<br>
Select the correct firmware with your bootloader variant ( T800XXU1ANFB from above )

=Extracting Stock Firmware=
<pre>

# ls -l

-rw-rw-r-- 1 jeremy jeremy 1,504,476,028 2025-06-24 11:56:43 SAMFW.COM_SM-T800_ITV_T800XXU1CPK1.zip

# unzip SAMFW.COM_SM-T800_ITV_T800XXU1CPK1.zip 

# ls -l

-rw-rw-r-- 1 jeremy jeremy 1,504,476,028 2025-06-24 11:56:43 SAMFW.COM_SM-T800_ITV_T800XXU1CPK1.zip
-rw-rw-r-- 1 jeremy jeremy 2,452,910,149 2016-11-07 13:22:28 T800XXU1CPK1_T800ITV1CPI1_HOME.tar.md5

# tar xvf T800XXU1CPK1_T800ITV1CPI1_HOME.tar.md5
boot.img
cache.img
hidden.img
recovery.img
sboot.bin
system.img
tar: A lone zero block at 4790840

# ls -l 
total 6,410,313,728
-rwx------ 1 jeremy jeremy     7,911,696 2016-11-04 00:53:42 boot.img
-rwx------ 1 jeremy jeremy    19,169,568 2016-11-04 00:53:42 cache.img
-rwx------ 1 jeremy jeremy   216,867,264 2016-11-04 00:53:42 hidden.img
-rwx------ 1 jeremy jeremy     8,397,072 2016-11-04 00:53:42 recovery.img
-rw-rw-r-- 1 jeremy jeremy 1,504,476,028 2025-06-24 11:56:43 SAMFW.COM_SM-T800_ITV_T800XXU1CPK1.zip
-rwx------ 1 jeremy jeremy     1,148,160 2016-11-04 00:53:43 sboot.bin
-rwx------ 1 jeremy jeremy 2,199,411,328 2016-11-04 00:53:43 system.img
-rw-rw-r-- 1 jeremy jeremy 2,452,910,149 2016-11-07 13:22:28 T800XXU1CPK1_T800ITV1CPI1_HOME.tar.md5

</pre>

=Get Partition Information Table=

<pre>
# heimdall download-pit --output sm-t800.pit
Heimdall v2.0.2

Copyright (c) 2010-2017 Benjamin Dobell, Glass Echidna
https://www.glassechidna.com.au/

This software is provided free of charge. Copying and redistribution is
encouraged.

If you appreciate this software and you would like to support future
development please consider donating:
https://www.glassechidna.com.au/donate/

Initialising connection...
Detecting device...
Claiming interface...
Initialising protocol...
Resetting device...
Protocol initialisation successful.

Beginning session...

Some devices may take up to 2 minutes to respond.
Please be patient!

Session begun.

Downloading device's PIT file...
PIT file download successful.

Ending session...
Rebooting device...
Releasing device interface...



# heimdall print-pit --file sm-t800.pit | tee sm-t800.pit.txt
Heimdall v2.0.2

Copyright (c) 2010-2017 Benjamin Dobell, Glass Echidna
https://www.glassechidna.com.au/

This software is provided free of charge. Copying and redistribution is
encouraged.

If you appreciate this software and you would like to support future
development please consider donating:
https://www.glassechidna.com.au/donate/

--- PIT Header ---
Entry Count: 24
Unknown string: COM_TAR2
CPU/bootloader tag: LSI5410
Logic unit count: 0


--- Entry #0 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 80
Attributes: 2 (STL Read-Only)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 0
Partition Block Count: 2046
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: BOOTLOADER
Flash Filename: sboot.bin
FOTA Filename: 


--- Entry #1 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 70
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 34
Partition Block Count: 16
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: PIT
Flash Filename: -
FOTA Filename: 


--- Entry #2 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 71
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 50
Partition Block Count: 2048
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: MD5HDR
Flash Filename: md5.img
FOTA Filename: 


--- Entry #3 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 1
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 8192
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: BOTA0
Flash Filename: -
FOTA Filename: 


--- Entry #4 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 2
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 16384
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: BOTA1
Flash Filename: -
FOTA Filename: 


--- Entry #5 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 3
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 24576
Partition Block Count: 40960
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: EFS
Flash Filename: efs.img
FOTA Filename: 


--- Entry #6 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 4
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 65536
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: m9kefs1
Flash Filename: m9kefs1.bin
FOTA Filename: 


--- Entry #7 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 5
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 73728
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: m9kefs2
Flash Filename: m9kefs2.bin
FOTA Filename: 


--- Entry #8 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 6
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 81920
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: m9kefs3
Flash Filename: m9kefs3.bin
FOTA Filename: 


--- Entry #9 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 7
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 90112
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: CARRIER
Flash Filename: carrier.img
FOTA Filename: 


--- Entry #10 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 8
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 98304
Partition Block Count: 16384
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: PARAM
Flash Filename: param.bin
FOTA Filename: 


--- Entry #11 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 9
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 114688
Partition Block Count: 16384
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: BOOT
Flash Filename: boot.img
FOTA Filename: 


--- Entry #12 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 10
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 131072
Partition Block Count: 20480
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: RECOVERY
Flash Filename: recovery.img
FOTA Filename: 


--- Entry #13 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 11
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 151552
Partition Block Count: 20480
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: OTA
Flash Filename: -
FOTA Filename: 


--- Entry #14 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 12
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 172032
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: CDMA-RADIO
Flash Filename: modem_cdma.bin
FOTA Filename: 


--- Entry #15 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 13
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 180224
Partition Block Count: 40960
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: RADIO
Flash Filename: modem.bin
FOTA Filename: 


--- Entry #16 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 14
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 221184
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: TOMBSTONES
Flash Filename: tombstones.img
FOTA Filename: 


--- Entry #17 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 15
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 229376
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: TDATA
Flash Filename: tdata.img
FOTA Filename: 


--- Entry #18 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 16
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 237568
Partition Block Count: 24576
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: PERSDATA
Flash Filename: persdata.img
FOTA Filename: 


--- Entry #19 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 17
Attributes: 5 (Read/Write)
Update Attributes: 1 (FOTA)
Partition Block Size/Offset: 262144
Partition Block Count: 8192
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: RESERVED2
Flash Filename: -
FOTA Filename: 


--- Entry #20 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 18
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 270336
Partition Block Count: 4935680
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: SYSTEM
Flash Filename: system.img
FOTA Filename: 


--- Entry #21 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 19
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 5206016
Partition Block Count: 409600
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: CACHE
Flash Filename: cache.img
FOTA Filename: 


--- Entry #22 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 20
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 5615616
Partition Block Count: 675840
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: HIDDEN
Flash Filename: hidden.img
FOTA Filename: 


--- Entry #23 ---
Binary Type: 0 (AP)
Device Type: 2 (MMC)
Identifier: 21
Attributes: 5 (Read/Write)
Update Attributes: 5 (FOTA)
Partition Block Size/Offset: 6291456
Partition Block Count: 0
File Offset (Obsolete): 0
File Size (Obsolete): 0
Partition Name: USERDATA
Flash Filename: userdata.img
FOTA Filename: remained



# Get partition names from the full PIT text file:
# grep -i 'boot\|system\|recovery\|tz' sm-t800.pit.txt 
CPU/bootloader tag: LSI5410
Partition Name: BOOTLOADER
Flash Filename: sboot.bin
Partition Name: BOOT
Flash Filename: boot.img
Partition Name: RECOVERY
Flash Filename: recovery.img
Partition Name: SYSTEM
Flash Filename: system.img

</pre>

=Installing Stock Firmware=
Using the matching partition names from above and with the tablet in download mode, run heimdall to install them:

<pre>
# heimdall flash \
  --BOOT boot.img \
  --SYSTEM system.img \
  --RECOVERY recovery.img \
  --BOOTLOADER sboot.bin \
  --CACHE cache.img \
  --HIDDEN hidden.img

</pre>

If you get an error like this:
<pre>
ERROR: BOOTLOADER partition is too small for given file. Use --skip-size-check to flash anyways.
Ending session...
Rebooting device...
Releasing device interface...
</pre>

Then, if you are sure the file is the correct one and not corrupt, run again with the <tt>--skip-size-check</tt> argument:
<pre>
# heimdall flash \
  --BOOT boot.img \
  --SYSTEM system.img \
  --RECOVERY recovery.img \
  --BOOTLOADER sboot.bin \
  --CACHE cache.img \
  --HIDDEN hidden.img \
  --skip-size-check 

Heimdall v2.0.2

Copyright (c) 2010-2017 Benjamin Dobell, Glass Echidna
https://www.glassechidna.com.au/

This software is provided free of charge. Copying and redistribution is
encouraged.

If you appreciate this software and you would like to support future
development please consider donating:
https://www.glassechidna.com.au/donate/

Initialising connection...
Detecting device...
Claiming interface...
Initialising protocol...
Resetting device...
Protocol initialisation successful.
...

</pre>

* Reboot (it will take longer than usual the first time after flashing).
* Run a system update from within Android itself ( Settings-> General-> About Phone -> Manually Check for Updates ) and then reboot again.
* At this point, you should be in good shape to upgrade to a custom ROM ( LineageOS, etc ).