Samsung Galaxy Z Fold8 (SM-F971B) — ECO
Samsung Galaxy Z Fold8 Released 2026, July 22 | 201g, 4.5mm thickness | Android 17, up to 7 major upgrades, One UI 9 | 256GB/512GB/1TB storage, no card slot | Foldable Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 3000 nits (peak) | 50 MP, f/1.8, 23mm (wide), 1/1.57", 1.0µm, dual pixel PDAF, OIS 50 MP, f/1.9, 120˚ (ultrawide), 1/2.5", 0.7µm, dual pixel PDAF | Li-Ion 4800 mAh
Samsung Galaxy Z Fold8 Network Specifications
| Speed | HSPA, LTE, 5G |
| 5G | 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 |
| 4G | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 66 - International |
| 3G | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 2G | GSM 850 / 900 / 1800 / 1900 |
| Technology | GSM / HSPA / LTE / 5G |
Samsung Galaxy Z Fold8 body Specifications
| SIM | Nano-SIM + eSIM + eSIM (max 2 at a time) |
| Build | Glass front (Gorilla Glass Victus Ceramic 3) (folded), plastic front (unfolded), glass back (Gorilla Glass Victus 2), aluminum frame |
| Weight | 201 g (7.09 oz) |
| Dimensions | Unfolded: 161.4 x 123.9 x 4.5 mm Folded: 81.9 x 123.9 x 9.7 mm |
Samsung Galaxy Z Fold8 MISC Specifications
| SAR EU | 0.82 W/kg (head) 1.21 W/kg (body) |
| SAR US | 1.23 W/kg (head) 1.17 W/kg (body) |
| Colors | Graphite, Cream, Lavender, Pistachio |
Samsung Galaxy Z Fold8 display Specifications
| Protection | Mohs level 1 |
| Resolution | 1828 x 2448 pixels, 4:3 ratio (~403 ppi density) |
| Size | 7.6 inches, 177.8 cm 2 (~88.9% screen-to-body ratio) |
| Type | Foldable Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 3000 nits (peak) |
Samsung Galaxy Z Fold8 Sound Specifications
| 3.5mm jack | No |
| Loudspeaker | Yes, with stereo speakers |
Samsung Galaxy Z Fold8 Platform Specifications
| GPU | Adreno 840 (1.3GHz) |
| CPU | Octa-core (2x4.74 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M) |
| Chipset | Qualcomm SM8850-1-AD Snapdragon 8 Elite Gen 5 (3 nm) |
| OS | Android 17, up to 7 major Android upgrades, One UI 9 |
Samsung Galaxy Z Fold8 Battery Specifications
| Charging | 45W wired, QC2.0, 63% in 30 min 20W wireless 4.5W reverse wireless |
| Battery | Li-Ion 4800 mAh |
Samsung Galaxy Z Fold8 memory Specifications
| Internal | 256GB 12GB RAM, 512GB 12GB RAM, 1TB 12GB RAM, 1TB 16GB RAM |
| Card slot | No |
Samsung Galaxy Z Fold8 Main Camera Specifications
| Video | 8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, gyro-EIS, OIS |
| Features | LED flash, HDR, panorama |
| Camera | 50 MP, f/1.8, 23mm (wide), 1/1.57", 1.0µm, dual pixel PDAF, OIS 50 MP, f/1.9, 120˚ (ultrawide), 1/2.5", 0.7µm, dual pixel PDAF |
ECO Region Firmware Info
ECO - EcuadorA 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 ECO code is used in Ecuador by Claro, with 3 distinct Samsung Galaxy Z Fold8 firmware versions found so far.
ECO Firmware Version History
| Version | Build Date | Security Patch |
|---|---|---|
| F971BXXS3AZIJ | 2026-09-23 | — |
| F971BXXS2AZH7 | 2026-08-10 | — |
| F971BXXU3AZI5 | 2026-09-08 | — |
3 Samsung Galaxy Z Fold8 firmware versions found for the ECO region, newest first.
Samsung Galaxy Z Fold8 ECO Firmware ArchiveOfficial Samsung Galaxy Z Fold8 firmware for the Ecuador ECO region, including BL, AP, CP, CSC and HOME_CSC packages for Odin flashing.
Samsung Galaxy Z Fold8 Combination & Special FilesCombination and service files for the Samsung Galaxy Z Fold8 (SM-F971B) — authorized repair, FRP reset after service, and diagnostics.
| Device Mobile | Version | Bit - SW REV | FA | Change list | Updated | Status |
|---|---|---|---|---|---|---|
ECO Firmware FAQ
Which carriers use the ECO CSC on the Samsung Galaxy Z Fold8?+
The ECO CSC is used by Claro in Ecuador. Flash the ECO firmware only if your device was sold through one of these carriers.
How many Samsung Galaxy Z Fold8 firmware versions are available for the ECO region?+
3 distinct Samsung Galaxy Z Fold8 firmware versions have been found for the ECO (Ecuador) region so far, from oldest to the latest build.
How is the ECO 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. ECO is the code for Ecuador (Claro) — flashing a different CSC can change your carrier branding, available languages and which OTA updates you receive.