Galaxy S26 Ultra

SM-S948C

Firmware S948CONU1AZAI

Japan · RKTAndroid 16Built Jan 21, 2026

Release information

Firmware identifiers

The software versions and region covered by this firmware update.

Japan · CSC RKT · 3 carriers in 2 countries

What is CSC?

CSC is Samsung's region and carrier customization. The networks below are included in this release.

MCCMNC44053NWIDNW00632

KDDI Corporation

5G 8005G 35005G 37005G 28000LTE 700LTE 850LTE 1500LTE 1800LTE 2100TD-LTE 2500TD-LTE 3500

Rakuten Mobile

MCCMNC44011NWIDNW01902

Rakuten Mobile Network, Inc.

5G 3700LTE 700LTE 1800

Orange

MCCMNC20801NWIDNW01902

Orange S.A.

5G 7005G 21005G 3500LTE 700LTE 800LTE 1800LTE 2100LTE 2600UMTS 900UMTS 2100GSM 900