[K750] Repair Camera Problem, How-to fix problem of camera exiting instantly.

Due to a slight manufacturing flaw in K750s, you may find that your phone develops a fault where the camera application exits the instant you open it (either by opening the lens cover or via the menu.)

If this happens, it's because the connection between the camera module and the mainboard has come loose. Here's how to fix it...

1. Follow the guide to opening the K750 up to and including the stage where you remove the display. You do not need to remove the rear cover (the part with the lens cover on it).
http://forums.se-nse.net/index.php?showtopic=870

2. You'll notice a connector running from the mainboard, through a hole, to the camera module. It's pretty springy and this raises it off the motherboard, putting a little strain on the connector which joins to the camera module. Press down on the brown/black connector in the hole and you'll notice a little give because it will have come loose over time. Just to make sure, press down on the other end of the connector where it joins the motherboard.

3. Re-attach the display and keypad, and without re-clipping the cover, quickly test the phone by re-inserting the battery (with sim card inserted) and trying the camera. If all is working, remove the battery and re-attach the cover using the guide at:
http://forums.se-nse.net/index.php?showtopic=870

If the camera still isn't working, try again - you might need to remove the connector between the camera module and the motherboard and re-attach it.

or you can reflash the phone with another firware.

It happend to me.. and I'm sure that the reason was the FW... because after flash... it was everything OK.

--------------------

K750i with W700i case.... software depends on my morning mood... oink oink oink! Thanks to some people in here... GG them!

Source : forums.se-nse.net