Galaxy S24 Ultra SM-S928B BIT 4 – Dead Boot & IMEI Repair

The Galaxy S24 Ultra SM-S928B BIT 4 repair pack (Firmware S928BXXS4BYH3, Android 15) is designed for the global Exynos 2400 variant of Samsung’s flagship. With this package, GSM repair technicians can fix dead boot, perform IMEI repair, restore EFS, remove MDM locks, and unlock carriers worldwide using CPID server integration.

Device & Firmware Information

• Model: Galaxy S24 Ultra SM-S928B (Global Exynos 2400)

• Firmware Version / PDA: S928BXXS4BYH3

• CSC: EUX (Europe Open) / multi-CSC global regions

• Bit / SW REV.: BIT 4

• OS / UI: Android 15, One UI 7

• Security Patch Level: August 2025

• Build Date: 2025-08

• Firmware Size: ~10 GB

• Firmware Download: https://samfw.com/firmware/SM-S928B/S928BXXS4BYH3

• Chipset: Samsung Exynos 2400 (4 nm, flagship-grade)

This firmware release (BIT 4, build S928BXXS4BYH3) brings Android 15 with One UI 7, plus updated security protections. The included DEBUG_USB_RECOVERY pack is verified to bypass dead boot and restore full system functionality.

Capabilities of the Pack

• ✅ Dead boot repair via Exynos USB Recovery

• ✅ IMEI repair and EFS restoration for full network functionality

• ✅ MDM / enterprise lock removal (PayJoy, RentCenter, etc.)

• ✅ Carrier unlock available via CPID server integration

• ✅ Fully compatible with Exynos-supported tools (Octoplus, Chimera, EFT Pro, etc.)

How to Flash DEBUG_USB_RECOVERY (SM-S928B BIT 4 – S928BXXS4BYH3)

1. Install the latest Samsung USB drivers: https://developer.samsung.com/mobile

2. Boot device into Exynos USB Recovery mode (key combo or test points if fully bricked).

3. Open a supported repair tool (Octoplus, Chimera, EFT Pro, Z3X, etc.).

4. Load the DEBUG_USB_RECOVERY file from this BIT 4 pack.

5. Start the flashing process and wait for completion.

6. Reboot device; if it fails, boot into recovery and perform a factory reset.

7. If IMEI or network still fails → flash EFS_ENG.

8. For carrier unlock or MDM removal, use https://imeirepairserver.store/services.

Important Notes

• This pack is specific to SM-S928B BIT 4 (Firmware S928BXXS4BYH3, Android 15).

• Using on another bit or model may cause permanent damage.

• Always back up EFS and user data before flashing.

The S928BXXS4BYH3 BIT 4 DEBUG_USB_RECOVERY pack is the complete solution for GSM repair shops and technicians, ensuring dead boot recovery, IMEI repair, EFS fix, MDM bypass, and carrier unlock for the Galaxy S24 Ultra SM-S928B running Android 15 / One UI 7. All carrier unlocks and MDM removals can be processed via https://imeirepairserver.store/services.