If you continue to encounter an error message saying, ‘Portable device formatting unsuccessful’ or related to an USB while using Navigation Updater, it can be associated with reading/writing issues of an USB or USB port. Please refer to the following to find a solution.
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'How to fix ‘A format error occurred in a removable storage device’
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Check if an USB can be formatted manually
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If the USB is detected in My PC (or My Computer) but unable to be formatted, go to 2.
- Refer to ② on how to manually format an USB ‘An error occurred while copying from PC to a removable storage device.’
▶ Go to ‘An error occurred while copying from PC to a removable storage device.’
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If the USB is detected in My PC (or My Computer) but unable to be formatted, go to 2.
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Reboot the PC after disconnecting the USB > Proceed the update by connecting to another USB port
※ Reference: When you remove an USB from the PC, you may select a safe eject method for prolonged use of the USB.
If you continue to experience the same issue after trying the instructions above, please try other PCs or USB port.