BFT Tool Failed to Check for New Version – Troubleshooting Guide
If BFT Tool starts normally but shows “Failed to Check for New Version”, the problem does not necessarily mean that the tool or your phone is damaged. In many cases, the error is related to the application's connection to its update service.Here are some common causes and troubleshooting steps that can help identify the problem.
Common Causes
1. Check Your Internet Connection
First, make sure your Windows PC has a stable internet connection. Open a few websites in your browser and confirm that the connection is working normally.If possible, try another network or a mobile hotspot. If BFT Tool works on another network, the problem may be related to your current network, DNS, router, or filtering settings.
2. Check Windows Firewall
Windows Firewall can prevent an application from establishing an outbound connection.Check whether BFT Tool is being blocked by Windows Firewall and, if appropriate, allow the application through the firewall. Avoid opening unnecessary ports or disabling your firewall completely.
3. Check Antivirus or Security Software
Some antivirus applications may restrict unfamiliar executable files or their network access.Check the antivirus quarantine or blocked-items section and verify whether the BFT Tool executable has been restricted. Only allow software that you obtained from a source you trust.
4. Disable Unwanted VPN or Proxy Settings
A VPN or manually configured proxy can sometimes interfere with an application's connection to its update server.Temporarily check your VPN and Windows proxy settings. If the problem disappears after removing an incorrect proxy configuration, restore your normal network settings before using the tool again.
5. Check DNS Configuration
DNS problems can also affect application connectivity.You can test the tool on another network first. If the issue is network-specific, checking DNS settings and clearing the Windows DNS cache may help.
6. Check the BFT Update Server
Sometimes the problem is not on your computer at all.If your internet connection works, Firewall and antivirus settings are not blocking the application, and the same error appears on another network, the BFT update service itself may be temporarily unavailable.
In that situation, waiting and trying again later can be more useful than repeatedly reinstalling the application.
MSVCR100.dll or MSVCP100.dll Errors
If BFT Tool also reports that MSVCR100.dll or MSVCP100.dll is missing, the problem may be related to the Microsoft Visual C++ runtime.Install or repair the appropriate Microsoft Visual C++ Redistributable package from Microsoft's official source and restart Windows afterward.
Avoid downloading individual DLL files from random websites because replacing system DLLs manually can create additional problems.
Should You Reinstall BFT Tool?
Reinstalling should not necessarily be the first step.Before reinstalling, check:
- Internet connectivity
- Windows Firewall
- Antivirus restrictions
- VPN and proxy settings
- DNS/network configuration
- Required Windows runtimes
- Whether the BFT update service is available
Quick Diagnostic Test
A simple way to narrow down the cause is to test the tool under different conditions:Browser works + BFT Tool fails:
The problem may be specific to the application's network access.
BFT works on mobile hotspot:
Your primary network, DNS, router, or filtering may be involved.
Firewall/antivirus adjustment fixes it:
Security software was likely restricting the application.
Error occurs on multiple networks:
The update service or the installed BFT version may be responsible.
Before Using Any Flashing Function
If you are troubleshooting BFT Tool because you intend to flash or repair a device, avoid starting a flashing operation just because the version-check message appears.Before any repair operation:
- Confirm the exact device model and variant.
- Use compatible firmware.
- Install the required USB drivers.
- Keep the phone sufficiently charged.
- Use a reliable USB data cable.
- Back up important data when possible.
- Do not disconnect the device during an active flashing process.
- Make sure you are authorized to service the device.
Conclusion
The “BFT Tool Failed to Check for New Version” message is commonly associated with the update connection rather than the phone itself. Checking the network, Firewall, antivirus, VPN, proxy, DNS and Windows dependencies can help identify the actual cause.If the problem continues across different networks and after checking the local Windows configuration, the BFT update service or the installed version may need further investigation.