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Introduction |
Use this guide to calibrate a Kobo eReader E ink display. This is done by changing the VCOM number, or "common voltage" number in your Kobo eReader to match a new motherboard or new E- ink screen. | | | This guide works with the Kobo Libra Colour and the Kobo Clara BW and Colour models. | | | The VCOM number is the reference voltage associated with the device's screen. In order for your screen to work properly, the stored value needs to match the VCOM number printed on the screen. You'll need to change the VCOM number if you replace the screen ''or'' the motherboard. | | ***Changing the VCOM number is only recommended during display or motherboard repairs.*** If the motherboard's stored VCOM number doesn't match the VCOM number associated with the connected E-ink display, you might see ghosting, or a fuzzy or/ unclear picture. ***If the VCOM numbers stay mismatched for long periods of time, or other issuesthis may result in permanent damage to the E-ink display.*** |
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