i think usb data cable like this can charge the phone as default when connect to PC.. our usb cable(e398) cannot charge when connect to pc/notebook..
This one is for E770 i think(same cable is used to Sony PSP and it's 3 times cheaper in my county
).
It is worth to mod ur E398 cable I did it and here are the results:
This is my USB cable inside orange and white strings are added and they are stick to each other(sorry rof quality)
Here is my cable connected to my mobile(no metter if Data/Fax or Memory Card mode). As you can see there is no batery symbol and battery is not being used right now(it means that i can take it away at any time and moblile will not turn off(look at the movie to see that it works)
Here is the movie that shows that cable is worth to be moded for BootLoader Mode:
Mirror 1(lycos very slow):
mp4 Version(Recorded by my 2nd mobile) 436KB
avi Version(DivX contains my comments) 2.33MB
Mirror 2(ovh.org very fast):
mp4 Version(Recorded by my 2nd mobile) 436KB
avi Version(DivX contains my comments) 2.33MB