If your Joy-Con buttons are unresponsive or you're planning to open up older Nintendo hardware, you'll likely look at two different purchases: a replacement flex cable for the button/key assembly and a screwdriver set designed for Nintendo's triwing screws. Both support gaming replacement parts and modding, but one is a component and the other is a tool. That distinction changes which one you should buy first.
Quick verdict
The Triwing Screwdriver Tool Kit is the smarter first buy if you own multiple Nintendo consoles or no compatible screwdriver, since the lower listed price leaves room for other parts. The Button Key Flex Cable is the necessary replacement when the Joy-Con itself is the problem and your tools are already sorted. In short: buy the tool if you need access; buy the cable if you know what's broken.
Price and compatibility at a glance
| Product | Price | What it includes | Works with |
|---|---|---|---|
| Button Key Flex Cable | USD 9.41 | Replacement flex cable for Joy-Con button/key assembly | Nintendo Switch Joy-Con controller |
| Triwing Screwdriver Tool Kit | USD 6.63 | 10-in-1 screwdriver set | Nintendo 3DS, 64, DS, Game Boy, Game Boy Advance, Game Boy Color, Switch |
Where each product wins
The flex cable wins when the issue is inside the Joy-Con itself. With a new cable, you can swap out the part that carries button presses. It's a direct replacement item with a 30-day manufacturer warranty, making it a low-risk choice for a single controller repair.
The screwdriver kit wins on versatility. It is the more affordable of the two, and its compatibility list covers controllers and consoles from the NES era through the Switch. If you're starting a repair toolkit from scratch, this set gives you a foundation for many jobs, not just one.
Product notes
#### Lots Button Key Flex Cable Replacement Parts For Nintendo Switch Joy-Con Console

This cable is the actual part you'd install when the button/key circuit on a Joy-Con stops responding. It is New, made for the Switch controller, and its Flex Cable connectivity means it is designed to route button signals within the assembly. The multicolor appearance hints at the multiple button contact points it serves. Choose it when you have already diagnosed a faulty contact and need a drop-in component. Its limitation is its focus: it does not come with any screwdriver or tool, and it is tied to the Joy-Con rather than across the broader Nintendo lineup. If the controller won't open because you lack a triwing bit, this part alone won't get you inside.
#### For Nintendo Switch N64 NES Game Boy Switch Triwing Screwdriver Repair Tool Kit

This 10-in-1 screwdriver set is for anyone who wants to open Nintendo gear without hunting for the right bit each time. It covers the Nintendo 3DS, Nintendo 64, Nintendo DS, Game Boy, Game Boy Advance, Game Boy Color, and Switch, so it works with controllers and consoles across generations. Made from durable material and easy to use, it's a straightforward addition to a repair bench. It is also the more affordable option in this pairing, which is a strong draw for a first tool purchase. The limitation is that it cannot fix a broken button circuit on its own; you still need the actual component, like the Joy-Con flex cable, to complete a repair.
Final choice by use case
If you need to repair a Joy-Con with an unresponsive button, the Button Key Flex Cable is the part you need, especially if you already have a screwdriver that fits. If you're assembling a repair kit for multiple Nintendo consoles, the Triwing Screwdriver Tool Kit gives you more flexibility for your money and works across generations. If you're unsure which problem you're solving first, start with the screwdriver set because it will help you inspect the hardware and confirm what's actually broken before ordering the cable.