The only way to fix the backlight when it's dim is to replace the LCD.
On ebay there are parts and people who service these jobs for cheap
Yes, I believe the Backlight in my iPod Touch has also degraded as I can only just about see the apps on my screen as it is extremely dark.
On any iPod touch, to adjust the backlight, follow these steps: 1. Go to Settings 2. Scroll down and click Brightness 3. Now you can adjust the backlights brightness. (sorry I don't know how to time the backlight to dim after a certain amount of time, although I don't even think it's possible on the itouch but only on the nano)
about £90
at an apple store
You cannot download a backlight on a Kobo Touch e-reader.
Call or text 402-909-1164. He fixed the screen of my ipod touch.
No, you can't. The amount of gigabytes your iPod touch has is fixed into its hard drive, and you cannot increase it.
Go to apple.com and apple communities. That place has many discussions on things such as where to get your iPod touch fixed or how to restore it. They are people who have experience with such things.
Go to the sttings menu and select backlight then select off.
Go into your "Settings" app, then to "General". Go to the Auto-Lock" setting and set it to "Never". That will keep your iPod Touch or iPhone from sleeping. Just remember, having the backlight on all the time can drain your battery.
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You can send in your iPod Toch 4 to be majorly fixed for a low cost to Apple.