Few weeks ago I wrote a post regarding the Samsung T400 dissected and the screen was brought back to life. However as posted there, the keypad of the phone was slightly cranky and had to be modified a little. Well modifications don’t really match the quality of a real working unit.. The keys were still a little hard to press and each key would require different amount of pressure to make the input work.

Oh anyway, let’s get to the point. I managed to get the replacement unit for this phone at a local flea market. The phone was pretty much screwed up with its flipping parts broken into 2. LOL. The unit was from Vietnam though.. (says the firmware when it was booted up).

Ahh, the two keypads together. Look at the hinge where the other phone broke. *ouch*.

(“new” and old)(rev 3.3 and rev 3.2)

The two mainboards together. The keypad of the phone was actually soldered on the main board of the phone so it would be a little messy if the keypad was replaced. Instead, the easier way was to simply swap the main boards and plug everything back in. The “new” board was a rev 3.3 board while the original one was rev 3.2 . Didn’t notice any difference in performance though. I accidentally broke the volume button ribbon during the brain transplant. Such a waste, no more volume control for the phone but then the other functions works good. If there’s a need for the volume control in the future, I shall perform another surgery to transplant the volume control ribbon from the working unit.

Now the phone is working great. Time to get another sim card and get it back to duty.

Total cost of repair: RM2.