While uploading the firmware, a user has to make sure that he has downloaded the correct firmware version of the range extender. You need to extract the downloaded firmware file before uploading it to the dlinkap.local interface. Make sure you do not turn off the router or device during the firmware update process. An incorrect firmware version may void the warranty of a product and may also damage the product.While uploading the firmware, a user has to make sure that he has downloaded the correct firmware version of the range extender. You need to extract the downloaded firmware file before uploading it to the dlinkap.local interface. Make sure you do not turn off the router or device during the firmware update process. An incorrect firmware version may void the warranty of a product and may also damage the product.While uploading the firmware, a user has to make sure that he has downloaded the correct firmware version of the range extender. You need to extract the downloaded firmware file before uploading it to the dlinkap.local interface. Make sure you do not turn off the router or device during the firmware update process. An incorrect firmware version may void the warranty of a product and may also damage the product.