Instant removal of special offers with kindle paperwhite

The method described below is tested and works on Kindle Paperwhite (with special offers, of course) with firmware version 5.3.0 and was discovered quite by accident.

There are several ways to remove ads on the Internet, but they either require JailBreak , or a complete reset of the device, followed by permanent work in offline mode. The following method allows you to delete ads at any time, and until the next connection to the network it will not appear.

Next in order.

1. We take the Kindle, which has just been connected to the Internet, and accordingly contains at least a few promotional offers.
2. Disconnect from the Internet. (Settings-> Airplane Mode)
3. Hold the power button for 30-40 seconds. The device will turn off much faster, but if you release the button earlier, it will not work.
4. Push the power button to boot.

Done, now all ads have been removed from your Kindle, until you connect to the Internet again. Instead of advertising screensavers displayed standard. A side effect is that the clock will be reset.

Only a banner that is displayed when unlocking and viewing the list of books at the bottom of the screen reminds of advertising: "Ensure your Kindle."
I do not have an explanation of how this method works, and I will be grateful if anyone can describe the details. Most likely, SO are stored in RAM, and when a hard reboot is not recorded in the main memory.