Error code 18005

Issue: When trying to install a firmware image via TP-Link WebGUI, I get the following error:

Error code: 18005, Upgrade unsuccessfully because the version of the upgraded file was incorrect. Please check the file name.

Root cause: TP-Link “Region locked” firmware. This firmware is checking for a specific region signature when flashing.


  1. Use an OpenWrt firmware image with the appropriate region code (US, EU, ...) for your device, if available
  2. Make the filename shorter, like factory-eu.bin or firmware.bin
  3. Use TFTP for flashing instead of WebGUI (TFTP flashing does not check regional code)
    possibly rename the OpenWrt image to wr802nv1_tp_recovery.bin (adapt filename to your device)
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  • Last modified: 2022/04/11 20:41
  • by bikepunk