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Samsung Galaxy Tab A (SM-T550) — Region KOO

Latest T550XXS1CTI7 • Android 5.0.2 • Oct 2020

Samsung Galaxy Tab A (SM-T550) Firmware Overview

What is the latest SM-T550 firmware?

T550XXS1CTI7, released October 12, 2020 for region KOO with Android 5.0.2. It is a security update on bootloader binary 1. The archive holds 1 official build for this region.

Is the Samsung Galaxy Tab A still getting updates?

Most likely not: there has been no new firmware since October 2020, so Android 5.0.2 is the last version this model got. The final builds below are still the best choice for a clean reinstall.

Can I downgrade the SM-T550 firmware?

Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 1:

SM-T550 firmware for region KOO

Build / PDA Bit Region (CSC) Android Date Download Link
T550XXS1CTI7
Security update
1 KOO
5.0.2
2020-10-12 Download

How to Flash SM-T550 Firmware

Put the Samsung Galaxy Tab A into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 1 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.