Samsung Galaxy Tab S 10.5" (SM-T800)

Resources

• Official Samgsung Page for Samsung Galaxy Tab S 10.5" - Good for them for still having this page available!
• LineageOS page
• GSM Arena Page
• Linux Kernel Source Code for the Samsung Exynos 5420 Chipset
• XDA Forums >> Unofficial LineageOS 17.1 ROM for Samsung Galaxy Tab S 10.5 WiFi (SM-T800 - chagallwifi)
• 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 ( lineage-17.1-20250102-UNOFFICIAL-chagallwifi.zip )
  • WARNING: !!! Lots of things broken on this ROM including camera, fingerprint reader, GApps, etc.!
  • Source code of this ROM (android_device_samsung_universal5420-common) by HazouPH
• Latest Custom ROM Build ( as of 2025-06-21 ) : LineageOS 20 for Samsung Galaxy Tab S 10.5 (SM-T805/SM-T800 - chagalllte/chagallwifi ) - Alpha
  • WARNING: !!! Lots of things broken on this ROM including camera, fingerprint reader, Infrared, and there is a memory leak with Chrome browsers!
  • [https://github.com/retiredcrave/android_kernel_samsung_exynos5420/tree/lineage-21.0 Source code of this RPM ( android_kernel_samsung_exynos5420 ) by retiredtab
• TWRP for chagalllte -- Latest version as of 2025-06-21 is twrp-3.7.0_9-0-chagalllte.img

Getting Model/Model Variant/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:

# Model
~ # getprop ro.product.model
SM-T800

# Model Variant
~ # getprop ro.product.device
chagallwifi

# 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

Downloading Stock Firmware

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