Latest Samsung Galaxy S21 Ultra (SM-G998B) - STH firmware

Samsung Galaxy S21 Ultra (SM-G998B) firmware for Singapore (StarHub) (STH): 61 builds in the SamMobile archive, newest first. The latest is G998BXXSJHZA6 (Android 15, built 21 January 2026). Open a build to download it, or switch region with the country selector.

Model		Build date	PDA	Version
SM-G998B	Singapore (StarHub)	2026-01-21	G998BXXSJHZA6	15
SM-G998B	Singapore (StarHub)	2025-10-02	G998BXXSHHYJ1	15
SM-G998B	Singapore (StarHub)	2025-08-04	G998BXXSGHYH1	15
SM-G998B	Singapore (StarHub)	2025-05-21	G998BXXSFHYE1	15
SM-G998B	Singapore (StarHub)	2025-04-15	G998BXXUEHYD5	15
SM-G998B	Singapore (StarHub)	2025-01-22	G998BXXSEGYA2	14
SM-G998B	Singapore (StarHub)	2024-12-31	G998BXXSEGXL2	14
SM-G998B	Singapore (StarHub)	2024-12-03	G998BXXSEGXK1	14
SM-G998B	Singapore (StarHub)	2024-11-04	G998BXXUEGXJE	14
SM-G998B	Singapore (StarHub)	2024-10-07	G998BXXSDGXI5	14
SM-G998B	Singapore (StarHub)	2024-08-29	G998BXXSCGXH7	14
SM-G998B	Singapore (StarHub)	2024-07-31	G998BXXUCGXGC	14
SM-G998B	Singapore (StarHub)	2024-06-25	G998BXXSCGXF4	14
SM-G998B	Singapore (StarHub)	2024-06-04	G998BXXSBGXEC	14
SM-G998B	Singapore (StarHub)	2024-05-03	G998BXXSBGXDH	14
SM-G998B	Singapore (StarHub)	2024-04-17	G998BXXUAGXDA	14
SM-G998B	Singapore (StarHub)	2024-04-01	G998BXXSAFXCP	14
SM-G998B	Singapore (StarHub)	2024-02-29	G998BXXS9FXBF	14
SM-G998B	Singapore (StarHub)	2024-01-30	G998BXXS9FXAI	14
SM-G998B	Singapore (StarHub)	2024-01-03	G998BXXS9FXA3	14
SM-G998B	Singapore (StarHub)	2023-12-06	G998BXXS9FWL4	14
SM-G998B	Singapore (StarHub)	2023-11-13	G998BXXU9FWK3	14
SM-G998B	Singapore (StarHub)	2023-10-30	G998BXXS9EWJO	13
SM-G998B	Singapore (StarHub)	2023-09-19	G998BXXS9EWIA	13
SM-G998B	Singapore (StarHub)	2023-08-31	G998BXXS9EWI1	13
SM-G998B	Singapore (StarHub)	2023-08-09	G998BXXU9EWH5	13
SM-G998B	Singapore (StarHub)	2023-08-01	G998BXXS9EWH1	13
SM-G998B	Singapore (StarHub)	2023-06-21	G998BXXS9EWF3	13
SM-G998B	Singapore (StarHub)	2023-03-28	G998BXXU7EWCH	13
SM-G998B	Singapore (StarHub)	2023-02-28	G998BXXS6EWBC	13
SM-G998B	Singapore (StarHub)	2023-02-20	G998BXXU6EWB9	13
SM-G998B	Singapore (StarHub)	2023-01-06	G998BXXS5DWA4	13
SM-G998B	Singapore (StarHub)	2022-11-23	G998BXXU5DVKF	13
SM-G998B	Singapore (StarHub)	2022-10-31	G998BXXS5DVK1	13
SM-G998B	Singapore (StarHub)	2022-10-24	G998BXXU5DVJC	13
SM-G998B	Singapore (StarHub)	2022-09-23	G998BXXS5CVIF	12
SM-G998B	Singapore (StarHub)	2022-08-29	G998BXXS5CVHI	12
SM-G998B	Singapore (StarHub)	2022-08-11	G998BXXU5CVH7	12
SM-G998B	Singapore (StarHub)	2022-07-21	G998BXXU5CVGB	12
SM-G998B	Singapore (StarHub)	2022-06-21	G998BXXS5CVFB	12
SM-G998B	Singapore (StarHub)	2022-06-07	G998BXXU5CVF2	12
SM-G998B	Singapore (StarHub)	2022-04-25	G998BXXU5CVDD	12
SM-G998B	Singapore (StarHub)	2022-04-04	G998BXXU4CVD2	12
SM-G998B	Singapore (StarHub)	2022-03-07	G998BXXU4CVC4	12
SM-G998B	Singapore (StarHub)	2022-02-03	G998BXXU4BVB1	12
SM-G998B	Singapore (StarHub)	2022-01-21	G998BXXS4BVA8	12
SM-G998B	Singapore (StarHub)	2021-12-23	G998BXXU4BULF	12
SM-G998B	Singapore (StarHub)	2021-12-21	G998BXXS3BULC	12
SM-G998B	Singapore (StarHub)	2021-11-05	G998BXXU3BUK8	12
SM-G998B	Singapore (StarHub)	2021-10-18	G998BXXS3AUJ7	11
SM-G998B	Singapore (StarHub)	2021-09-13	G998BXXU3AUIE	11
SM-G998B	Singapore (StarHub)	2021-08-17	G998BXXU3AUHB	11
SM-G998B	Singapore (StarHub)	2021-07-06	G998BXXU3AUG4	11
SM-G998B	Singapore (StarHub)	2021-07-06	G998BXXU3AUG4	11
SM-G998B	Singapore (StarHub)	2021-06-02	G998BXXU3AUF2	11
SM-G998B	Singapore (StarHub)	2021-05-01	G998BXXU3AUE1	11
SM-G998B	Singapore (StarHub)	2021-03-19	G998BXXU2AUC8	11
SM-G998B	Singapore (StarHub)	2021-02-24	G998BXXS2AUBB	11
SM-G998B	Singapore (StarHub)	2021-02-15	G998BXXU1AUB9	11
SM-G998B	Singapore (StarHub)	2021-01-24	G998BXXU1AUAC	11
SM-G998B	Singapore (StarHub)	2021-01-06	G998BXXU1AUA4	11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2026-01-21	G998BXXSJHZA6
Version
15

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2025-10-02	G998BXXSHHYJ1
Version
15

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2025-08-04	G998BXXSGHYH1
Version
15

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2025-05-21	G998BXXSFHYE1
Version
15

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2025-04-15	G998BXXUEHYD5
Version
15

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2025-01-22	G998BXXSEGYA2
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-12-31	G998BXXSEGXL2
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-12-03	G998BXXSEGXK1
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-11-04	G998BXXUEGXJE
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-10-07	G998BXXSDGXI5
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-08-29	G998BXXSCGXH7
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-07-31	G998BXXUCGXGC
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-06-25	G998BXXSCGXF4
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-06-04	G998BXXSBGXEC
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-05-03	G998BXXSBGXDH
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-04-17	G998BXXUAGXDA
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-04-01	G998BXXSAFXCP
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-02-29	G998BXXS9FXBF
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-01-30	G998BXXS9FXAI
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2024-01-03	G998BXXS9FXA3
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-12-06	G998BXXS9FWL4
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-11-13	G998BXXU9FWK3
Version
14

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-10-30	G998BXXS9EWJO
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-09-19	G998BXXS9EWIA
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-08-31	G998BXXS9EWI1
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-08-09	G998BXXU9EWH5
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-08-01	G998BXXS9EWH1
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-06-21	G998BXXS9EWF3
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-03-28	G998BXXU7EWCH
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-02-28	G998BXXS6EWBC
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-02-20	G998BXXU6EWB9
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2023-01-06	G998BXXS5DWA4
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-11-23	G998BXXU5DVKF
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-10-31	G998BXXS5DVK1
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-10-24	G998BXXU5DVJC
Version
13

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-09-23	G998BXXS5CVIF
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-08-29	G998BXXS5CVHI
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-08-11	G998BXXU5CVH7
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-07-21	G998BXXU5CVGB
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-06-21	G998BXXS5CVFB
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-06-07	G998BXXU5CVF2
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-04-25	G998BXXU5CVDD
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-04-04	G998BXXU4CVD2
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-03-07	G998BXXU4CVC4
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-02-03	G998BXXU4BVB1
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2022-01-21	G998BXXS4BVA8
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-12-23	G998BXXU4BULF
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-12-21	G998BXXS3BULC
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-11-05	G998BXXU3BUK8
Version
12

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-10-18	G998BXXS3AUJ7
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-09-13	G998BXXU3AUIE
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-08-17	G998BXXU3AUHB
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-07-06	G998BXXU3AUG4
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-07-06	G998BXXU3AUG4
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-06-02	G998BXXU3AUF2
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-05-01	G998BXXU3AUE1
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-03-19	G998BXXU2AUC8
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-02-24	G998BXXS2AUBB
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-02-15	G998BXXU1AUB9
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-01-24	G998BXXU1AUAC
Version
11

Model	Country/Carrier
SM-G998B	Singapore (StarHub)
Build date	PDA
2021-01-06	G998BXXU1AUA4
Version
11

Latest Samsung Galaxy S21 Ultra (SM-G998B) - STH firmware

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