If you're dealing with a bricked Samsung Galaxy M15 5G (Model: SM-M156B) or need to flash stock firmware via a Qualcomm Emergency Download Mode (EDL), this guide is exactly what you need. In this article, we’ll walk you through the EDL test point location, its purpose, and how to safely enter EDL mode using the test point method.
🔧 What is EDL Mode?
EDL (Emergency Download Mode) is a special mode on Qualcomm-powered devices that allows direct communication between your phone's hardware and a PC. It's typically used for:
- Unbricking devices
- Flashing firmware via QPST/QFIL tools
- Bypassing FRP/Pattern lock (for authorized service use only)
📱 About Samsung Galaxy M15 5G (SM-M156B)
- Processor: MediaTek Dimensity 6100+
(Note: Some regional variants may still use Qualcomm, so EDL might apply depending on the chip.)
- Launch Year: 2024
- Model Number: SM-M156B
- Android Version: Android 14 (One UI 6)
If your model is Qualcomm-based, you can use the EDL method for deep-level recovery or flashing.
📍 How to Locate the EDL Test Point on Samsung M15 5G
⚠️ Disclaimer: This process requires disassembling your device. Proceed at your own risk. It may void warranty.
🔎 Tools Needed:
- Precision screwdriver
- Plastic pry tool
- Tweezers
- USB Cable
- QFIL / QPST Tool (for PC)
🛠️ Steps to Access the EDL Test Point:
- Power off the phone completely.
- Remove the SIM tray and gently open the back panel using a plastic tool.
- Disconnect the battery connector to avoid short circuits.
- Locate the test point area on the motherboard (usually near the USB connector or under the shielding).
- Use metal tweezers to short the test point while connecting the USB cable to the PC.
- Your PC should detect Qualcomm HS-USB QDLoader 9008 in device manager.
- ✅ Your Samsung Galaxy M15 5G is now in EDL mode and ready for flashing via QFIL or other Qualcomm tools.
🖼️ Image Reference:
📤 When to Use the EDL Method?
- When the phone is stuck in bootloop or won’t power on
- If Fastboot/Download/Recovery modes are inaccessible
- To recover from a failed firmware update or corrupt ROM
- For professional service center-level deep recovery
❗ Important Notes:
- Not all variants of Galaxy M15 5G may support EDL if using MediaTek chipset.
- Use official firmware from trusted sources only.
- Always back up your data if possible before flashing.
🧩 Final Thoughts
Using the EDL Test Point method for Samsung Galaxy M15 5G (SM-M156B) is a powerful last-resort recovery option. While it’s not intended for everyday users, advanced users and technicians can benefit from this guide to rescue devices that are otherwise bricked. Handle with care and ensure you're flashing the correct firmware version to avoid permanent damage.
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