What is this?
It’s the built-in 640x480 (VGA) digicam of my Nokia 6230 mobile phone.
Problem.… I got a short message on my mobile phone and realized that the vibrating motor inside didn’t work. Of course I checked the settings, switched it off and even removed the battery for a cold start. Still not working. Ayaaaa!
I got this phone a year ago and since then I always refrained from opening it further because, well, because it somehow (!) worked. Of course the internal firmware (v05.24) still has some bugs and I already had it flashed with a new firmware some time ago (I used to do this myself on those earlier DCT‑3 models and even some earlier DCT‑4 phones (Nokia 51xx, 61xx, 62xx, 71xx, 83xx) but those series-40 & series-60 phones require better hardware equipment for flashing the phone’s firmware and it just doesn’t make sense to buy such a machine if a) i am just doing this as a hobby & b) Nokia officially doesn’t like any firmware changes on the user side — not so Siemens, btw). However, this thing was LONGING for a small exploration of its circuits. It silently whispered into my ears: Kiku, tafadhali, saidia mimi.… OH my dear, help is on its way!
I pulled out my TORX6 screwdriver and removed those six screws.….Jeeeeeeeeeesssaaaaas! Nokia engineers — KUDOS to you folks over in that Sauna country — remember those early Nokia phones? YOU’VE COME A LOOOONG WAY and — apart from this firmware business and “occasional” software resets while typing an important SMS — the PCB layout is just awesome. For instance, those internal RF parts are normally sealed with a little metal cover which requires some patience to be opened. Alas, with this phone though, the cover itself is right under the keypad — which means that you don’t have to squeeze or pull anything open when you are trying to dismantle the phone — it just unfolds by itself! Perfect. What’s the biggest part in a phone? The battery..
So I opened it up, cleaned the vibrating motor and corrected some elec. contacts. Curriosity of course hooked me and I consequently removed the digicam of its socket… BAD IDEA … when I tried to put it back, this thing in my head called intelligence somehow went on a little vacation (presumably because of thinking about Mbuzimoja :-) and I inserted it in the wrong way. Well, it looked as if it was okay though — but still, you can even spot the problem in the above picture — those little noses don’t correspond to the metal frame around it. Dumb. Just dumb.
Of course I only realized that once I had everything back in place, so that thing had to be reopened and blablabla.… talking ’bout Murphy’s Law, eh?
The benefits of this little exploration, though: a) a nice view on good NOKIA engineering and b) SPEED! Upon switching it on again, this thing runs much faster now. What is it? I mean, wth? is the connection between the firmware, the acceptance of buggy MMC-flash-card-controllers and a normal hardware cleanup?
Technology sometimes gives me a lot to think about.