Ever since the Nintendo Switch was released, we've been hearing gamers complaining that the left Joy-Con occasionally suffers from connection problems. Nearly 3 weeks later, Nintendo has finally acknowledged the issue and is offering affected customers a solution.
Nintendo has issued an official statement, explaining that the connectivity problems are a result of a "manufacturing variation". Without delving into details, Nintendo assured that the manufacturing variation was identified and fixed, so upcoming shipments will not be affected by it. The company also assured that it will fix all affected units for free, though the repair will take around a week a pop.
If your unit is affected, feel free to contact Nintendo for repairs. The company will collect your Joy-Con, fix it and return it to you within a week. Or if you are confident in your soldering skills - and you don't to miss out on your Switch for seven days - you might try the fix described in the video below. In the video, Spawn Wave solders a wire to the Joy-Con's Bluetooth transmitter in order to boost its signal strength. Interestingly enough, it looks like Nintendo uses a similar strategy to fix the controllers it receives by attaching a piece of conductive foam to the Bluetooth transmitter.
