Switch No Wi-Fi BT either after disassembly

[Mocho]

I had disssembly my son Switch for dust cleaning (playing saying too hot ant shut down). After reassemble it no Wi-Fi detected and controllers didn't recognized. I suppose is up to this module because normalli Wi-Fi and BT is in the same chip. Coaxial lead is connected. What else shall I check?

 

[linuxares]

Check so it's seater properly and also check your coax cables. They are "button" connectors so they're really firmly connected.

 

[iiTzSamurai]

Small black and white wires I believe. Make sure you feel or hear a small click while pressing them down but do not force it.

 

[impeeza]

The "module" is soldered to board but the antennas are connected via small coax cables you could to forget connect them look on the disassemble videos available on the net

 

[Mocho]

The "module" is soldered to board but the antennas are connected via small coax cables you could to forget connect them look on the disassemble videos available on the net

I commented checked the coaxial cables. Didn't unplugged by what I did, anyway I checked if unfortunately disconnected but wasn't. Anyway if were disconnected if palced close to the router, wi-fi signal shown but low, right? Is like not wi-fi at all, either the controllers. Something I'm thinking, can't remove a screw and polish it with my dremmel as gentle as possible, maybe by the vibration the broadcomm module any pad lost the connection with the board?. I was silly anyway, then realized didn't need remove that screws, just the middle one

 

[Mocho]

Small black and white wires I believe. Make sure you feel or hear a small click while pressing them down but do not force it.

Yeah, checked it, are properly connected

 

[Mocho]

Check so it's seater properly and also check your coax cables. They are "button" connectors so they're really firmly connected.

Coax connector are right connected. Seater property what you mean?, the case?

 

[Mocho]

https://gbatemp.net/threads/nintendo-switch-wifi-dead-but-bluetooth-works.592368/

Found it searching in the forum, not looks like 100% of my case, coz mine haven't BT as well, tomorrow will check it the board again properly

 

[Invich]

I have the exact same issue. Been searching for a solution since some months ago, but no luck so far. Most threads I've seen suggest it's a hardware problem with BCM4356 chip.

 

[Mocho]

The Wi-Fi was the missing resistor or capacitor, solved putting from a doner board. But controllers still not responsing at all. Is weird. If plugged the genuine joycons didn't work if not charged (so not charging). Charged in other switch then recognized (so BT is working). If plugged non official controllers side one, Hori in my case don't recognize it. Pro controller by BT do it.

For other side, Switch is getting hot, like fan not working. Replaced the fan but still not working. Don't know is problem is hardware relationated. Before WI-FI problem (my fault at disassemble it), had those problem, controllers connection and high temperature.

 

[Mocho]

Same case, probably have a luck, will comment it

 

[linuxares]

The Wi-Fi was the missing resistor or capacitor, solved putting from a doner board. But controllers still not responsing at all. Is weird. If plugged the genuine joycons didn't work if not charged (so not charging). Charged in other switch then recognized (so BT is working). If plugged non official controllers side one, Hori in my case don't recognize it. Pro controller by BT do it.

For other side, Switch is getting hot, like fan not working. Replaced the fan but still not working. Don't know is problem is hardware relationated. Before WI-FI problem (my fault at disassemble it), had those problem, controllers connection and high temperature.

View attachment 294285

Ah common issue when you take of the plate. That resister is like in the damage zone.

 

[Bens411]

The Wi-Fi was the missing resistor or capacitor, solved putting from a doner board. But controllers still not responsing at all. Is weird. If plugged the genuine joycons didn't work if not charged (so not charging). Charged in other switch then recognized (so BT is working). If plugged non official controllers side one, Hori in my case don't recognize it. Pro controller by BT do it.

For other side, Switch is getting hot, like fan not working. Replaced the fan but still not working. Don't know is problem is hardware relationated. Before WI-FI problem (my fault at disassemble it), had those problem, controllers connection and high temperature.

Hi ! I had the same problem before. In my case, the two resistors were missing according to the repair shop. The Wi-Fi worked after the repair.
But now, this switch has a sleep problem. It simply cannot go into sleep mode, the CPU seems to be awaken every second. The shop checked with a thermal camera, but didn't find anything.

 

[Mocho]

Looks the solution for the fan and joycons charge in first model motherboard only, the diode

 

[Mocho]

Looks the solution for the fan and joycons charge in first model motherboard only, the diode

That was the solution for mine, just removing the diode