Sometimes the exploit registers a "Step 1 Fail" but manages to seed the exploit payload into the device background cache anyway.
Manually force-restart your Samsung device (Hold Volume Down + Power button).
: Many free tools like SamFW rely on specific vulnerabilities (such as the *#0*# test mode exploit) that Samsung has patched in newer firmware versions (Android 13, 14, and beyond).
: Ensure USB Debugging is enabled in Developer Options and that you have authorized the connection on the phone's screen when prompted.
On certain older firmware versions (such as specific builds of Android 12 or 13), the SamFw tool requires manual intervention to break through the security layer. samfw running exploit fail
Use an original, high-quality OEM data cable. Avoid charging-only cables. Step 3: Disable PC Antivirus and Windows Defender Real-time protection frequently intercepts SamFW processes. Open > Virus & threat protection . Click Manage settings . Toggle Real-time protection to Off .
: Ensure you are using an original or high-quality data cable and a USB 2.0 port if possible, as some exploits are sensitive to USB 3.0/3.1 speeds.
Windows occasionally loads generic MTP drivers rather than the official Samsung Mobile USB Modem driver. This lack of proper communication prevents the tool from establishing a secure ADB handshake, causing an abrupt timeout labeled as an exploit failure. Step-by-Step Solutions to Fix the Error
If these steps don't work, you may need to use Odin to manually flash the firmware for your desired region, though this is a more complex process. Sometimes the exploit registers a "Step 1 Fail"
Hi Team,
Look at the button options inside the SamFw interface (e.g., Remove FRP [Old Method] , Remove FRP [New Method] , or Remove FRP [August 2022 to December 2023] ).
Use this if you are asking for help. It provides the details experts need to assist you.
Certain models (especially US carrier models like Verizon/T-Mobile) have more locked-down security. : Ensure USB Debugging is enabled in Developer
If the above steps fail, it's time to look for a solution from the source or a different path.
Check the box for and tap Allow .
Check your device's security patch date: Settings → About Phone → Software Information. Many recent models (post-December 2022) require the paid service, or may not be supported at all.
If you have tried all the steps above and still get the "Running exploit fail" message, your device likely has a security patch level that completely closes the vulnerability SamFw is targeting. In this scenario, you have two options: