Samsung Galaxy Tab S 10.5

Ahhh, yes....
I'll add info here
This is a great tablet, still the best Super AMOLED screen of its size I've ever used.

Details

• Circa: 2014
• Model: SM-T800 ( aka chagallwifi )
• CPU: Samsung Exynos5420
  • Octa-core:
  • 4 x Cortex-A15 @ 1.9 GHz
  • 4 x Cortex-A7 @ 1.3 GHz
• RAM: 3GB
• Internal Storage: 16 GiB
• Display
  • Native Resolution: 2560 x 1600 pixels (~286 PPI pixel density -- Nice)
  • Default DPI: 320
  • My favorite DPI: 220

Controls

• Recovery: With the device powered off, hold Home + Volume Up + Power.
• Download: With the device powered off, hold Home + Volume Down + Power.

Customizing

• Root with: CF-AUTO Root
• Recovery: TWRM
• ROMs
  • LineageOS - No longer maintained; but available for manual build.