Samsung Galaxy S21+ 5G SM-G996U UFS Dump File (Bit9 Dead Boot Repair)

What is the Samsung Galaxy S21+ SM-G996U UFS Dump File?

This listing provides the complete UFS (Universal Flash Storage) dump file for the Samsung Galaxy S21+ 5G (SM-G996U) running on Binary 9 (Bit9) firmware. Unlike older eMMC storage, the S21 series utilizes high-speed UFS 3.1 architecture, requiring specific dump files and capable hardware tools for reading and writing data.

The dump file allows professional repair technicians to restore the boot partitions (LUN0, LUN1, etc.) and user area of the device's storage chip. This is the ultimate solution for "hard-bricked" devices that are completely unresponsive, show no power consumption, or are stuck in Qualcomm HS-USB QDLoader 9008 mode without booting.

Supported Repair Scenarios

This UFS dump file is engineered to solve critical hardware-level failures:

• Dead Boot Repair: reviving devices that do not vibrate, display an image, or enter Download Mode due to corrupted bootloaders.
• UFS Chip Replacement: When replacing a physically damaged UFS memory chip, this dump file is required to program the blank chip with the necessary partition tables and boot data.
• Stuck in 9008 Mode: Repairs Samsung S21+ units (Snapdragon variants) stuck in Emergency Download Mode (EDL) due to partition table corruption.
• Corrupted Partition Tables: Restores the GPT (GUID Partition Table) when it has been damaged by bad flashing or power failure.
• Bit9 Upgrade/Repair: Specifically aligned with Binary 9 security revisions to ensure compatibility with modern firmware versions.

Compatible Hardware Tools

Working with UFS 3.1 storage requires advanced hardware programmers. This dump is tested with:

EasyJTAG Plus (with UFS Socket)

The industry standard for UFS programming. EasyJTAG Plus allows for high-speed writing of LUN partitions directly to the UFS chip or via clean ISP connections. Ensure your box firmware is updated to support UFS 3.1 descriptors.

UFI Box (UFS Prog)

Compatible with UFI Box when used with the UFS specialized adapter. Supports reading and writing full UFS dumps and configuring chip attributes (Config Descriptor).

Medusa Pro II

Highly recommended for Samsung UFS repairs due to its fast transfer speeds and native support for Samsung UFS controller protocols.

Programming Methods

Direct UFS Chip Programming (Socket)

For the highest success rate, especially with UFS replacement, desolder the chip and place it in a BGA-254 or matching UFS socket. This allows for verification of the chip's health (Life Time Estimation) before writing the dump.

ISP (In-System Programming)

Possible on select motherboard revisions, but UFS ISP is notoriously delicate. Requires precise soldering to CLK, CMD, DAT0, and stable VCC/VCCQ2 voltages. Signal wires must be kept extremely short to avoid data CRC errors.

File Specifications

Important Links & Resources

Maximize your repair success by cross-referencing these internal resources:

• Samsung Firmware & Official Files – Find standard 4-file firmware to flash after restoring the boot dump.
• Qualcomm Snapdragon Firmware Files – Resources for Qualcomm-based Samsung devices like the G996U.
• Samsung S20 5G UFS ISP Pinout – Reference for similar UFS architecture pinouts.
• eMMC & UFS Full Dump Collection – Browse dumps for other models.
• Latest UFS Pinout Guides – Stay updated with new UFS connection methods.

Disclaimer for Technicians

Professional Use Only: Programming access to UFS subsystems carries a risk of permanent hardware damage if done incorrectly. This file is intended for use by trained technicians with professional hardware tools (EasyJTAG, UFI, Medusa). We are not responsible for damage caused by improper soldering, wrong voltage application, or tool misuse.