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2024年4月に発売された楽天Koboの電子書籍リーダーClara BW（白黒）の修理・分解情報です。型番はN365です。

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Backlight not always working

My Kobo is a Clara HD, and for several months now I'm experiencing some issues with the backlight. I'm not sure if it's something hardware that can be fixed or if it's software.

Whenever I recharge my kobo, the backlight will stop working for a period of time that can range from a few hours to several days.

I've done quite a few tests to try to troubleshoot the problem with no success.

The level of battery does not seem to be directly connected as I encounter the problem no matter if I recharge when the battery is low or high and how long I recharge for.

Factory reset will always instantly fix the problem.

I would really appreciate any insight.

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If Factory reset always fixes it, that seems like a software issue to me. I was going on a tear about battery charging and thermal expansion. But then I saw that a factory reset fixes it, so that seems more software related, even if it comes back.

Have you made sure you have done all software updates?

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Yes, the software and firmware are up-to-date. The only thing I didn't try yet is a downgrade, I might consider that and see if temporarily fixes it.

I'm afraid it's a mix of hw and sw issue.

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Federica さん、ありがとうございました！
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