When troubleshooting a "failed to access folder" error in 3uTools (often appearing as Error Code 13), users frequently find the issue stems from restricted permissions, driver conflicts, or software bugs rather than hardware failure. The following steps are commonly used to resolve this:
If you are encountering this error, the tool itself won't fix it—you have to do it manually. Here is the solution that resolves the issue in 90% of cases: 3utools failed to access folder error code 13 new
If these don’t work, move to the advanced solutions below. When troubleshooting a "failed to access folder" error
Right-click the folder 3uTools is trying to access (e.g., your Backup or Firmware folder) and select Properties tab, click , and ensure your user account has Full Control Temporarily Disable Anti-Virus 3utools failed to access folder error code 13 new