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I can no longer inject a payload to my unpatched Switch.

  • Thread starter Thread starter Skyetendo
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jkyoho said:
check diode reading at test pad 2&3 first, normally should have about 0.6XX~0.7XX mV.
if test pad 2 or 3 has ground or very low diode reading, remove the esd filter in yellow box and test again.
If no reading at all(OL), check on the red arrow from top of the choke filter
Click to expand...
First, i dont have reading on 2&3.
2nd, 2 or 3 has no ground so i did not remove the esd filter is that right?
And the the two you pointed with the red arrow has no reading either.
 
jkyoho said:
Different from resistance reading, diode reading is always red prob to ground and black prob point to the test object.
Click to expand...
Mate, can you check this? You can correct me if im wrong, im just using an analog multimeter. I did what you said and this is what i got. Btw, this is just my extra switch so i can learn how to fix it on my own.
 

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jkyoho said:
you need a digital multimeter to approach diagnostic these days. Analog meter can only do basic resistance reading or simple voltage reading.
Click to expand...
Good day mate. I just got a digital multimeter today, and i have to do the reading again so i could tell you. Test pad 5 has 490 - 540, please see attached photo. Test pad 2 & 3 has no reading and no ground.
 

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Deadkid21 said:
Good day mate. I just got a digital multimeter today, and i have to do the reading again so i could tell you. Test pad 5 has 490 - 540, please see attached photo. Test pad 2 & 3 has no reading and no ground.
Click to expand...
Do you have continuity/beep from orange to test pad 2, or from yellow to test pad3?
you need to test the top two silver point on that tiny choke filter, some time they blow up and leads to test pad 2&3 having no reading.
1707702632209.png
 
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Just stating for the record that I had this exact problem: USB-C seem to work fine as it charged and docked fine but injecting payloads didn't work. Don't know the exact details but the transfer-data part of the USB-C wasn't working properly, can be checked easily by trying to use an ethernet conector either docked or on the actual USB-C.

I had someone open it up, checked it, didn't do anything and closed it again and was working perfectly. I guess some dust messed it up. It appears to be a common problem with older unpatched models.
 
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jkyoho said:
Do you have continuity/beep from orange to test pad 2, or from yellow to test pad3?
you need to test the top two silver point on that tiny choke filter, some time they blow up and leads to test pad 2&3 having no reading.
View attachment 419497
Click to expand...
I dont have continuity on orange to 2 and yellow to 3. If thats blown up, could it be the problem why payload won't push?
 
hi im back after 2 years haha. i wonder if where do i make a solder bridge from to pad 2 and 3? from the orange and yellow boxes?
 
The choke coil signal goes from bottom left to top left and bottom right to top right.
1778559862767.png


So you can either connect the pads of the coil directly on the left and right.
Or connect pad 2 to the top left and pad 3 to the top right.


Do _NOT_ connect the left/right (orange/yellow) pads with each other as this will create a short.
 

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