Galaxy Z Flip7 SM-F7660 BIT 4 – Dead Boot & IMEI Repair

The Galaxy Z Flip7 SM-F7660 BIT 4 repair pack (Firmware F7660ZSU4AYI1, Android 16) is tailored for the China/Hong Kong Snapdragon 8 Gen 3 variant of Samsung’s 2024 foldable. With BIT 4 firmware and Android 16 (One UI 8), this package provides GSM repair specialists with the ability to fix dead boot devices, repair IMEI, restore EFS, remove MDM restrictions, and unlock carriers (China Mobile, China Unicom, China Telecom) using CPID server integration.

Device & Firmware Information

• Model: Galaxy Z Flip7 SM-F7660 (China/HK Snapdragon 8 Gen 3)

• Firmware Version / PDA: F7660ZSU4AYI1

• CSC: ZSU (China/HK)

• Bit / SW REV.: BIT 4

• OS / UI: Android 16, One UI 8

• Security Patch Level: September 2025

• Build Date: 2025-09

• Firmware Size: ~9–10 GB

• Firmware Download: https://samfw.com/firmware/SM-F7660/F7660ZSU4AYI1

• Chipset: Qualcomm Snapdragon 8 Gen 3 (4 nm, Chinese edition)

The included DEBUG_EMERGENCY_DOWNLOAD pack is validated for BIT 4 (F7660ZSU4AYI1) and provides safe recovery from Qualcomm 9008 dead boot or failed firmware updates.

Capabilities of the Pack

• ✅ Recover dead boot / Qualcomm 9008 devices

• ✅ Perform IMEI repair and EFS partition restoration

• ✅ Remove MDM / enterprise locks (PayJoy, RentCenter, etc.)

• ✅ Unlock Chinese carriers via CPID server integration

• ✅ Compatible with Qualcomm repair tools (QFIL, Hydra, Octoplus, EFT Pro, etc.)

How to Flash DEBUG_EMERGENCY_DOWNLOAD (SM-F7660 BIT 4 – F7660ZSU4AYI1)

1. Install latest Qualcomm HS-USB QDLoader 9008 drivers: https://developer.qualcomm.com

2. Connect device in Qualcomm 9008 (EDL) mode.

   • If not detected, use test points on the Flip7 SM-F7660 board.

3. Launch QFIL or another Qualcomm-supported repair tool: https://androidmtk.com/download-qualcomm-flash-image-loader-qfil

4. Load the DEBUG_EMERGENCY_DOWNLOAD.mbn/bin file from this BIT 4 pack.

5. Begin flashing and wait for successful confirmation.

6. Reboot device with Power + Vol Down.

7. If IMEI/network fails → flash the included EFS_ENG file.

8. For carrier unlock or MDM removal, process directly via https://imeirepairserver.store/services.

Important Notes

• This pack is specific to Galaxy Z Flip7 SM-F7660 BIT 4 (Firmware F7660ZSU4AYI1, Android 16).

• Using it on another bit/model may cause permanent damage.

• Always back up EFS and user data before flashing.

With the F7660ZSU4AYI1 BIT 4 DEBUG_EMERGENCY_DOWNLOAD pack, GSM repair centers can fully restore the Galaxy Z Flip7 SM-F7660 running Android 16 / One UI 8, fixing dead boot, repairing IMEI/EFS, bypassing MDM, and unlocking Chinese carriers via https://imeirepairserver.store/services.