[Nexus One Q&A, Help & Troubleshooting] jhodak:
Hi jmouton,

I also tried this repair and it worked perfectly (my phone is being working perfectly well for about one month now) (please see the 5 disassembly videos that i posted in You tube. (search for "how to repair the power switch of your Nexus one" in you tube)

You need to solder two wires:

One is about 7 cm long and it will go from the pin 10 (on the 44 pin connector. (note I count the pins from the top right end, as seen when you observe the flex with the camera end on the top and the two large connectors facing up). The Pictures posted by plisk3n are very good for this. The other end of this wire should be soldered on one of the pins of the switch.

The second wire can be about 3cm long and it should be connected between the switch and the ground of the phone. The ground is actually in many locations. To solder easy, choose a hole where the screw goes (which have a golden pad surrounding the hole). Such holes are actually vias that pass the ground from one layer of the board to the ones below and to the one on the other face of the board. There is one convenient hole like i described not too far from the flash, and you may solder the end of the 3cm wire there. The other end of this wire should go to either one of these:

Option a)

the golden patch on the back of the tiny switch board, (this is connected to the switch rough a vias a cross the board). This should be easier to solder, but do not use a bulky soldering point because this may cause the switch to be nearly pressed all the time. The reason is that the back of the switch board will sit against a steel support that holds the switch board when you press the power button.

option b)

Solder the 3 cm ground wire to a pin on the switch. (more difficult to solder there but equally good of a solution as a))

Note that there is a golden bracket on the tiny switch board on the side where the switch is soldered. The pins that are connected to the ground are the pair that is next to the open side of the bracket.

The wire that comes from pin 10 at the 44 pin connector, should be connected to either of the pins of the switch that are located near the closed side of the bracket.

To solder this get magnet wire which is insulated outside by a thin enamel layer. Strip the enamel of the end by punching a liquid tin droplet on the tip of the soldering iron (pre-coat with tin the four ends of the two wires that you will use to bridge the flex).

Then use a thin soldering iron and try to work under a magnifying glass ans with good illumination.

Fist solder the wire at the large connector:

Before you solder tape the wire onto the flex so it does not move. Tape it with its tinned end is aligned with pin #10. The tinned end of the wire must be sitting on top of the tinned part of the connector pin. Not on the golden part. Now with the wire secured with tape, try to lower the soldering iron fine tip pressing only on the wire, which then is pressed against the pin underneath of it. Heating small objects is quite fast. So apply a touch of 0.5 to 1 second. If a short occurs, wipe the shorted pins with a clean soldering iron tip. You must wipe in the direction away from the connector, with the motion along the pins direction.

You clean the tip of the soldering iron using a wet paper tissue.

If no short occurs inspect the connection with the magnifying glass and conductivity to the inside of the connector and the far end of the wire using a voltmeter. (you can use two sewing needles secured with clean copper wires on the ends of the volt meter probes to achieve a sharper probe.

You should see electrical connection. If not, repeat the soldering until you succeed.

I hope this explains better how to do it.

Unfortunately i failed to record when i soldered the wires :(.

Good luck. It seems like several people succeeded.

Regards,

Jose