Pioneer AVH-X4700BS System Firmware Update Instructions - Page 5
Browse online or download pdf System Firmware Update Instructions for Receiver Pioneer AVH-X4700BS. Pioneer AVH-X4700BS 6 pages. In-dash dvd receivers
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9. Touch [Continue].
10. Read the "WARNING," then touch the [Start] button to start the update process. If it shows "ERROR" on
the display, try another USB device.
11. After starting, there will be a progress bar while updating.