z107 charger pinout?

[Ped]

hi guys does anyone have the charging pinout for one of these?...need to build a charger.. just open up the plug if u have one and have a nose :)

[mrfixit]

z107 charger:

keypad
1...........................24
3, 4 +5volt
20, 22 gnd

phone does not indicate charging, original charger has charging led built in at connector.

[Ped]

thanks.

15 months too late, but thanks