Hi

Can't seem to switch Sleep mode off. After 10 seconds of not touching any key, the screen goes blank.

Tried switching it Off and removing the battery, so that the phone reboots from the SIM card. No change.

Tried switching it On and removing the battery. No change.

It is incredibly annoying trying to work with a screen that goes blank every 10 seconds.

Anybody know of a solution?

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