Samsung Galaxy Z Flip4 (SM-F721B) — SKZ
Samsung Galaxy Z Flip4 Released 2022, August 25 | 187g, 6.9mm thickness | Android 12, up to Android 16, One UI 8 | 128GB/256GB/512GB storage, no card slot | Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak) | 12 MP, f/1.8, 24mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 12 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/3.06", 1.12µm | Li-Po 3700 mAh
Samsung Galaxy Z Flip4 Network Specifications
| Speed | HSPA, LTE (6CA), 5G |
| 5G | 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 77, 78 SA/NSA/Sub6 - International |
| 4G | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 |
| 3G | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 2G | GSM 850 / 900 / 1800 / 1900 |
| Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G |
Samsung Galaxy Z Flip4 body Specifications
| SIM | Nano-SIM + eSIM |
| Build | Plastic front (unfolded), glass back (Gorilla Glass Victus+), aluminum frame |
| Weight | 187 g (6.60 oz) |
| Dimensions | Unfolded: 165.2 x 71.9 x 6.9 mm Folded: 84.9 x 71.9 x 15.9-17.1 mm |
Samsung Galaxy Z Flip4 MISC Specifications
| SAR EU | 1.15 W/kg (head) 1.20 W/kg (body) |
| SAR US | 1.02 W/kg (head) 0.94 W/kg (body) |
| Colors | Bora Purple, Graphite, Pink Gold, Blue, Yellow, White, Navy, Khaki, Red |
Samsung Galaxy Z Flip4 display Specifications
| Resolution | 1080 x 2640 pixels (~426 ppi density) |
| Size | 6.7 inches, 101.5 cm 2 (~85.4% screen-to-body ratio) |
| Type | Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak) |
Samsung Galaxy Z Flip4 Sound Specifications
| 3.5mm jack | No |
| Loudspeaker | Yes, with stereo speakers |
Samsung Galaxy Z Flip4 Platform Specifications
| GPU | Adreno 730 |
| CPU | Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) |
| Chipset | Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) |
| OS | Android 12, upgradable to Android 16, One UI 8 |
Samsung Galaxy Z Flip4 Battery Specifications
| Charging | 25W wired, 50% in 30 min 15W wireless 4.5W reverse wireless |
| Battery | Li-Po 3700 mAh |
Samsung Galaxy Z Flip4 memory Specifications
| Internal | 128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM |
| Card slot | No |
Samsung Galaxy Z Flip4 Main Camera Specifications
| Video | 4K@30/60fps, 1080p@60/240fps, HDR10+ |
| Features | LED flash, HDR, panorama |
| Camera | 12 MP, f/1.8, 24mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 12 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/3.06", 1.12µm |
SKZ Region Firmware Info
SKZ - KazakhstanA CSC (Consumer Software Customization) code ties a Samsung firmware build to the country and carrier it was released for, controlling branding, available languages and which OTA updates a device receives. The SKZ code is used in Kazakhstan by Beeline, Kcell, Activ, Neo, with 3 distinct Samsung Galaxy Z Flip4 firmware versions found so far.
SKZ Firmware Version History
| Version | Build Date | Security Patch |
|---|---|---|
| F721BXXSCIZH3 | 2026-08-14 | — |
| F721BXXSCIZG3 | 2026-07-09 | — |
| F721BXXSCIZF1 | 2026-06-12 | — |
3 Samsung Galaxy Z Flip4 firmware versions found for the SKZ region, newest first.
Samsung Galaxy Z Flip4 SKZ Firmware ArchiveOfficial Samsung Galaxy Z Flip4 firmware for the Kazakhstan SKZ region, including BL, AP, CP, CSC and HOME_CSC packages for Odin flashing.
Samsung Galaxy Z Flip4 Combination & Special FilesCombination and service files for the Samsung Galaxy Z Flip4 (SM-F721B) — authorized repair, FRP reset after service, and diagnostics.
| Device Mobile | Version | Bit - SW REV | FA | Change list | Updated | Status |
|---|---|---|---|---|---|---|
SKZ Firmware FAQ
Which carriers use the SKZ CSC on the Samsung Galaxy Z Flip4?+
The SKZ CSC is used by Beeline, Kcell, Activ, and Neo in Kazakhstan. Flash the SKZ firmware only if your device was sold through one of these carriers.
How many Samsung Galaxy Z Flip4 firmware versions are available for the SKZ region?+
3 distinct Samsung Galaxy Z Flip4 firmware versions have been found for the SKZ (Kazakhstan) region so far, from oldest to the latest build.
How is the SKZ CSC different from other region codes?+
Samsung ties every firmware build to one of roughly 599 CSC (Consumer Software Customization) codes, each tied to a specific country and carrier. SKZ is the code for Kazakhstan (Beeline, Kcell, Activ, and Neo) — flashing a different CSC can change your carrier branding, available languages and which OTA updates you receive.