Hey all
I’ve been facing a weird issue with a switch lite I have picked up. I’ve heard that the cyw4356x chip can fail quite often but when I test for shorts I only see a few grounds coming out of the chip which very well could correctly be ground? See image below with circles around ground points that I found
I have found one potentially suspicious part that looks like “t374” which I have an arrow and a question mark at could be an issue. Ive found it hard to probe as the top of the smd is ground, however I think (it’s hard to say for sure) the top right foot is not grounded, but I could be just not properly making contact with the pad. I am unable to look this smd up though so I don’t know what should and should not be grounded.
When I attempt to connect to a wifi network I get the following:
However I am able to connect to a Bluetooth joycon which I believe is handled by this chip too, so I’m starting to be suspicious of a wifi related component outside the cyw4356x chip.
Feel free to ask me to probe anything and also please let me know if there are any good resources I can consume to help diagnose the issue independently
still new to hardware repairs and hacking
Cheers!
Edit:
I am also aware of quarts crystals failing in the wifi setup of switches too and it looks like potentially the t374 could be related to this http://www.txccorp.com/download/products/quartz_crystals/2017TXC_8Q-01.pdf
I’ve been facing a weird issue with a switch lite I have picked up. I’ve heard that the cyw4356x chip can fail quite often but when I test for shorts I only see a few grounds coming out of the chip which very well could correctly be ground? See image below with circles around ground points that I found
I have found one potentially suspicious part that looks like “t374” which I have an arrow and a question mark at could be an issue. Ive found it hard to probe as the top of the smd is ground, however I think (it’s hard to say for sure) the top right foot is not grounded, but I could be just not properly making contact with the pad. I am unable to look this smd up though so I don’t know what should and should not be grounded.
When I attempt to connect to a wifi network I get the following:
However I am able to connect to a Bluetooth joycon which I believe is handled by this chip too, so I’m starting to be suspicious of a wifi related component outside the cyw4356x chip.
Feel free to ask me to probe anything and also please let me know if there are any good resources I can consume to help diagnose the issue independently
still new to hardware repairs and hackingCheers!
Edit:
I am also aware of quarts crystals failing in the wifi setup of switches too and it looks like potentially the t374 could be related to this http://www.txccorp.com/download/products/quartz_crystals/2017TXC_8Q-01.pdf
