Quote:
Originally Posted by batman52
I supposed my K3 got the same virus...
A partial confirmation is that K3 can be get back to life for several minutes by warming with a hair dryer, much like in this video
https://www.youtube.com/watch?v=lZsLUCW42O0
I have also replaced the battery with no apparent improvement.
Is there any tutorial on how to properly do a reflow without killing any other vital parts ? |
It turns out I tried to reflow in a conventional oven, and it worked!
Here the process:
- unmounted everything, and keep only the main board
- pre-heated the oven at 100oC
better if you have a temperature controller to check (but I did not, so I was really cautios and staring all the time at the temperature control of the oven). Instead I put a small bit of tin on a spoon, that I was observing to check if the melting point of tin was attained.
- put the main board in the oven and set a target temperature of 220oC
[INDENT] I was expecting to wait until seeing the tin to melt, but I started seeing something moving below the audio codec (look on the teardowns the wolfson chip), therefore I got scared...
- then I turned off the oven and opened the door (beware it's hot!), and waited for the whole thing to cool down.
- remount everything, and test!
It's been few weeks since then, and my kindle runs just fine so far: in retrospective it's been relatively easy, but I admit I found the courage to go to such a dramatic approach just because I had already bought a replacement device.