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