SM-X135N 1 country Android 16

Samsung Galaxy Tab A11 LTE X135NKOS4BZF4 Firmware

Name: Samsung Galaxy Tab A11 LTE (SM-X135N)
Brand: Samsung
Availability: InStock

Samsung Galaxy Tab A11 LTE X135NKOS4BZF4 is an Android 16 firmware for South Korea (KOO). It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build X135NKOU4BZE7 https://samfirm.shop/build/X135NKOU4BZE7, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for SM-X135N is available: X135NKOS5BZI3 https://samfirm.shop/build/X135NKOS5BZI3.

OS updates guaranteed until: Android 22Security updates until: Sep 25, 2032

8.8/10 (78)420 times

Android 16

OS Version

2026-06-19

Build Date

n/a

Security patch

Countries

CSC codes

Bootloader binary

Bootloader binary 4. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.

Newer builds of Samsung Galaxy Tab A11 LTE use bootloader binary 5 (latest: X135NKOS5BZI3). If your device already runs binary 5, this build cannot be flashed.

All regional downloads

Pick your region (CSC) to download the matching firmware package.

Will it work on my device?

Paste your current build number from Settings > About phone (About tablet) > Software information, or the output of *#1234#.

MODEM/CP Version: X135NKOS4BZF4

Model	Region	CSC Version	Release date	Size	File name	Download
SM-X135N	KOO South Korea	X135NKOO4BZF4	2026-06-25	5.805 GiB	SM-X135N_3_20260619094441_o2wtwkbunm_fac.zip

Device specifications

Display diagonal22.1 cm (8.7")
Display resolution1340 x 800 pixels
Rear camera resolution8 MP
Rear camera typeSingle camera
Front camera resolution5 MP
Wi-Fi standardWi-Fi 5 (802.11ac)
Weight337 g

Specifications of SM-X135F, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

How to flash X135NKOS4BZF4

Install Samsung USB Drivers:Download Official Drivers
Download Odin Flash Tool:

X135NKOS4BZF4 has bootloader binary 4. Your device must run binary 4 or lower: it is the 5th character from the end of your current build number.
CSC: Use CSC for a clean install, to change the region (CSC code), to downgrade or to repair a device that does not boot.
HOME_CSC: Use HOME_CSC to update the same model and region while keeping your data. Back up anyway: a failed update can still require a reset.
The Download Mode key combo depends on the model: see all combos.

Full flashing guide

Beware: Manually flashing firmwares may brick your device. Use it at your own risk and follow our tutorial steps.

Frequently Asked Questions

X135NKOS4BZF4 is Android 16 firmware for Samsung Galaxy Tab A11 LTE, released for South Korea (KOO). Samsung built it on 2026-06-19.

No. A newer build for SM-X135N is available: X135NKOS5BZI3. Install it instead of X135NKOS4BZF4 unless you need this exact version. The previous build was X135NKOU4BZE7.

Download the package for your region (CSC) and unzip it. In Odin, load each file into the slot with the same name: BL, AP, CP (if the package has one) and CSC, or HOME_CSC to keep your data. Odin checks the built-in checksum of every .tar.md5 file before flashing. The download is 5.805 GiB; keep about twice that free on the computer to unzip it. The Samsung Galaxy Tab A11 LTE must be on bootloader binary 4 or lower.

This build uses bootloader binary 4. It can be flashed on a Samsung Galaxy Tab A11 LTE running binary 4 or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 4 other builds of this model use the same binary, so you can switch between them in both directions.