Quote:
Originally Posted by geekmaster
I have my PW2 apart. I just examined it. The TTL serial pads have surface traces (hidden under the green solder mask) that run under the edge of the nearby metal can (RF shield). They are probably available to solder to under than shield. You could either find something like a resistor that they attach to (earlier kindles had series resistors on the TTL serial connections). Or you could carefully scrape off some solder mask (green paint) to expose a short segment of the copper traces (serial TxD and RxD) and solder tiny wires to those. I salvaged my tiny wires for my K4 with ripped off serial pads from the coil inside a dead CFL (compact fluorescent lamp). Tape down those soldered wires, fold them over the tape, and tape again. Then solder flexible (multi-strand) wires to those. And tape over the connections so they are held down (and apart) on the other tape. This makes it all insulated and physically secure. That is what I did anyway.
So yes, it looks like the PW2 can be salvaged like I did with my K4 (when TTL serial was the only known way to debrick it), before we discovered the "magic keys" and USB downloader mode (on the kindles with that feature).
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Thanks for the info geekmaster. I'll see if I can see the traces somewhere. Might have to invest in a better magnifying glass first
The RF shield is just attached on the solder pads you think? If I can't see the traces I mean.