Any alternate clock D point available?

[rickster26ter]

Hello, I am working backwards from a mod after my switch not turning on. I found that this connection wasn't working, so soldered it then got a purple screen. I was thinking maybe I could do a better solder job, but turned out making it worse. Now the via point is gone after a botch. Is there anywhere else on the board I can connect to get these two locations to be connected?

Thanks,

 

[urherenow]

If you botched that job, the answer is: nowhere that you have the ability to get the job done.

One of the inner pins of the emmc. So you'd have to remove the emmc, solder a small enough wire to allow reballing and reflowing it (without melting the enamel off of the wire, causing a short), then solder that wire to the trace leading to the apu. That still might not work, even if you managed it.

Someone here posted files to order a breakout board to sandwich between the emmc and main board, and I ordered some myself, but I couldn't even clearly see the points on that board, to get a stencil on it for reballing.

 

[rickster26ter]

Thanks. I found that there is a little bit of metal left on the via - and checked it's diode voltage of about .585 v. So I soldered a tiny ball to connect the two.

Now it looks connected as far as I can tell, but the screen is still black - no signs of any life when turning on - not even an LED flash when turning on or when plugging the charger in.

Post automatically merged: Jun 24, 2024

Pic here.

Also cmd point attached, the resistor reading about 4k ohms on board. The cmd is the only other thing I touched recently.

For context this was a good working switch. I started to mod then found screen wouldn't turn on. So read around and checked clk point. Replaced cmd resistor from another board.

 

[MoeXzl]

You shouldn't scratch the point too much, just gently and with feeling. Have you measured the soldering point to see if you have a constant connection at all? Don't split the trace either.

 

[rickster26ter]

You shouldn't scratch the point too much, just gently and with feeling. Have you measured the soldering point to see if you have a constant connection at all? Don't split the trace either.

I mentioned I'm getting .585v diode voltage above.

 

[MoeXzl]

If your connection is interrupted, you always get values, but different ones. APU and EMMC are one connection. If that isn't there (and everything else works) the Switch stays black. CMD resistance is exactly 4.7k Ohms by the way. You wrote about 4k... Then the Switch won't start either, but it would glitch and Hekate would still start.