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hf_mode · 11-12-2009, 19:22

Take the USB cable and handsfree set (if any) and figure out which pins are used on tem. Handsfree set should have common only GND, other pins (for headphones and mic) can be marked out. USB cable tells you where the GND is, other pins can be also marked out. You can do this only by looking at the connectors. If you need charging pin, just open the usb cable and look at red wire / measure it. This procedure will give you just a few pins rest.

Then measure the voltage of resting pins. You should find battery output voltage (it can be those 3,68V - the battery is not charged much bro), mark it out. If you find some 0V or similar pins, mark them out as well. You can end up with three pins with 2,5-3V - rx and tx are ussualy side by side - so try to connect with them. If phone turns on, swap them, that should be it.

Let us know if it works

11-12-2009, 19:22	#2 (permalink)
hf_mode Junior Member Join Date: Oct 2009 Posts: 21 Member: 1140649 Status: Offline Thanks Meter: 0	Take the USB cable and handsfree set (if any) and figure out which pins are used on tem. Handsfree set should have common only GND, other pins (for headphones and mic) can be marked out. USB cable tells you where the GND is, other pins can be also marked out. You can do this only by looking at the connectors. If you need charging pin, just open the usb cable and look at red wire / measure it. This procedure will give you just a few pins rest. Then measure the voltage of resting pins. You should find battery output voltage (it can be those 3,68V - the battery is not charged much bro), mark it out. If you find some 0V or similar pins, mark them out as well. You can end up with three pins with 2,5-3V - rx and tx are ussualy side by side - so try to connect with them. If phone turns on, swap them, that should be it. Let us know if it works