Troubleshooting battery, Wifi, and display issues

[PaulB223]

Hi everyone,

when my Kindle 3's battery started getting a very low lifespan in recent, at a certain point the images (and some text) started displaying incorrectly, all fuzzy and grainy. I got a new battery, installed it, follow the seller's instructions of allowing the battery to fully charge and discharge three times. Then the battery started having practically no lifespan at all: it completely discharges in about eight hours, even when the Kindle is off. In fact the Kindle is slightly warm to the touch even when off. At about the same time the Wi-Fi stop picking up any Wi-Fi network, even after turning it on and off. The issue with the image display continues too. Can anyone help please?

Thanks,
Paul