On all Dual mode 52XX phones and the new 5330 and 5340 phones it is no longer necessary to power-cycle the phone to access the IP config screens.
1) Press both the Up/Dn keys simultaneously
2) Now release the Dn key only. Continue holding the Up key depressed (don't let go)
3) While still holding the Up key depressed, press 2-3-4 on the keypad (c-f-g)
4) now release the Up key
There is no specific minimum amount of time to hold these keys. As quickly as you can master and perform the above keystroke sequence, the phones will respond with a setup screen.
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