Samsung Galaxy A50 SM-A505G UFS Dump File (U4 Dead Boot Repair)

What is the Samsung Galaxy A50 SM-A505G UFS Dump File?

This is a complete UFS (Universal Flash Storage) dump file for the Samsung Galaxy A50 (SM-A505G), running on Binary U4. Unlike older eMMC-based devices, the Galaxy A50 utilizes faster UFS storage technology, which requires specific dump files and compatible hardware tools for reprogramming.

This file is a "Reference Dump" or "Rescue Dump" exacted from a fully functional device. It contains the critical boot partitions (LUNs) required to initialize the UFS chip and boot the phone into Download Mode, allowing standard firmware flashing to complete the repair. It is the ultimate solution for devices that are completely dead, detected as "QDLoader 9008" (if Qualcomm) or "Exynos USB Boot" (if Exynos), or show no signs of life due to corrupted storage.

Supported Repair Scenarios

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

• Dead Boot / No Power: The device draws low current (e.g., 0.05A - 0.15A) and does not power on. This often indicates a corrupted bootloader in the UFS chip.
• Corrupted UFS Config: Creating a fresh partition table and writing this dump helps fix "Check Fail" encryption errors or invalid partition size issues.
• Stuck on Logo / Boot Loop: When standard Odin flashing fails or the device restarts endlessly, writing a clean UFS dump can clear deep-level software corruption.
• UFS Chip Replacement: If the original UFS chip is physically damaged and replaced, this dump file is required to program the new blank UFS chip (BGA 153/254) to make it bootable.

Compatible Hardware Tools

Repairing UFS storage requires advanced hardware programmers. This file is compatible with:

EasyJTAG Plus (Z3X)

The industry standard for UFS programming. You can write this dump via the EasyJTAG UFS socket or high-speed ISP connection. Ensure you select the correct LUN configuration before writing.

UFI Box (UFS Socket)

UFI Box with the UFS add-on socket supports writing this dump. Use the "Write UFS" function and select the scatter/xml file provided in the package (or manually select LUN0, LUN1, LUN2, etc.).

Medusa Pro II

Highly recommended for Samsung UFS repair. Medusa Pro II offers fast write speeds and stable connection for writing large UFS dumps.

MiPI Tester / Sysco Box

Compatible with other high-end UFS programmers that support Samsung Exynos UFS structures.

Programming Methods

1. ISP (In-System Programming)

Note: UFS ISP is minimal and delicate. It requires precise soldering to the UFS data lines (Tx, Rx, Clk, Rst) on the motherboard. Use this method if you want to avoid removing the UFS chip. Ensure your wires are short (less than 5cm) to avoid data errors.

2. Chip-Off (Direct Programming)

This is the most reliable method. Remove the UFS chip from the motherboard using a hot air station, clean the BGA balls, and place it in the programmer's BGA socket. This allows for verification, health report checking, and full speed writing.

File Information

How to Use

1. Backup: Always attempt to read and backup the original "EFS" and "SEC" partitions (NVRAM, ModemFS) if possible, to preserve the original IMEI/Baseband.
2. Connect: Connect the UFS chip via Socket or ISP.
3. Check Health: Run a "Smart Report" or "Health Check". If the UFS life used is >90%, the chip is physically bad and should be replaced.
4. Write Dump: Load the supplied dump file.
   Tip: For dead boot repair, you often only need to write the Boot LUNs and small partitions. You can skip the large Userdata chunk to save time, then flash full stock firmware via Odin.
5. Flash Settings: After writing the dump, put the phone into Download Mode and flash the full 5-file Stock ROM compatible with U4 binary.

Relevant Resources

Enhance your repair success rate by checking these related pages:

• Samsung Firmware & Files Collection – Download full stock ROMs for flashing after dump write.
• Samsung eMMC/UFS Dump Files – Browse our complete archive of tested dump files.
• UFS & eMMC ISP Pinout Gallery – Find correct motherboard connection points.
• Understanding UFS ISP Pinouts (Example) – Guide on reading UFS line diagrams.
• Advanced UFS Pinout Guide – Technical reference for modern Samsung boards.

Disclaimer

For Professional Use Only: This file is intended for certified mobile service technicians. Manipulating UFS partitions carries a risk of permanent device damage. We are not responsible for any damage caused by improper proficiency or hardware failure. Do not use this file for changing IMEI or illegal activities.