Kindle DXg firmware アップデート 2.5.7 → 2.5.8

気がつけば一カ月以上前にリリースされていた。

詳細が掲載されていないので何がアップデートされたのかさっぱり。説明文は、2.5.7の時と変わっていないのでバグフィックスが中心だと思う。

ダウンロード先
http://www.amazon.com/gp/help/customer/display.html/ref=hp_navbox_top_kindledxi?nodeId=200529740

変わっていない説明文

Collections: Organize your books, audiobooks, and personal documents into one or more collections. Subscriptions such as newspapers, magazines, and blogs cannot currently be added to collections on Kindle.

PDF Pan and Zoom: Zoom into PDFs and pan around to easily view small print and detailed tables or graphics.

Password Protection: Password protect your Kindle when you're not using it.

More Font Sizes & Improved Clarity: Enjoy two new larger font sizes and sharper fonts for an even more comfortable reading experience.

Facebook & Twitter Posts: Share meaningful book passages with friends on Facebook and Twitter directly from your Kindle.

Popular Highlights: See what the Kindle community thinks are the most interesting passages in the books you're reading.

しかし以下のページを見ると、アップデートしたらバッテリーの減りが早くなったとの声も。
http://www.kindleboards.com/index.php?PHPSESSID=hh5fo1h222v2fkv1927vdc2sl2&topic=57619.0

i recently updated my kindle dx graphite software to version 2.5.8. now it is draining battery much much faster. i fully charged it, disconnected the charger and the cable. i put it to sleep with wireless off and auto-rotate off. i didn't use it. after 6 hours, the battery life is 75%. after 4 days it is fully discharged.

i did a reset but that didn't fix the problem. i charged it completely last night. it was 75% full this morning. then it became 50% full after an hour of reading. now, after a total of 14 hours since full charging, it's 25%.

does any one have the same problem? how can i fix this? amazon-cs instruction to reset did not fix the problem.

help!

アップデートする場合はいつもと同じ。ダウンロードしたファイルをKindle上にUSBでコピーして、

Menu → Settings → Menu → Update You Kindle → 10分ほど待つ。