Reddit reviews Nintendo Screwdriver Set-Younik Triwing Screwdriver for Nintendo 17 in 1 Professional Screwdriver Game Repair Tools Kit for Nintendo Switch/Nintendo Switch Lite/JoyCon/DS /DS Lite /Wii /GBA

This is for the shells, make sure you order the right one. I would strongly recommend that you buy the D-Pad shell for the left JoyCon, it's an incredibly positive difference; I can't even put it in words how much better it is:

https://www.amazon.com/dp/B07VHCRH5Y/ref=twister_B073XKXQW4?_encoding=UTF8&psc=1 


This is for the tool kit I used: 

https://www.amazon.com/Nintendo-Screwdriver-Younik-Precision-Products/dp/B06XPX5XLY/ref=sr_1_1_sspa?crid=1PE5AE8YZWRNV&keywords=switch+screwdriver&qid=1564878635&s=electronics&sprefix=switch+screw%2Celectronics%2C193&sr=1-1-spons&psc=1 


This is for the replacement joystick modules. I personally didn't need to replace mine, but I figured I'd include it in case yours were drifting:

https://www.amazon.com/Onyehn-Joystick-Replacement-Suitable-Controller/dp/B07MV4CY5K/ref=sr_1_8?keywords=nintendo+switch+replacement+joystick&qid=1564878759&s=electronics&sr=1-8 


And this is the tutorial I followed:

https://www.youtube.com/watch?v=jvorgb05Dxo 

I see what your explaining, let me clarify what your trying to say a bit.

If your copy of Battle Network (or any other early GB/GBC/GBA/NES/SNES game) will not save, it's likely due to a dead CR2025 battery, which in the GBA era was finally being replaced with flash memory sometimes.

This early memory used RAM to hold the game save, just like your computer's RAM. like your computer's ram, it requires power to hold data. No power, and the transistor states that hold your game's data will be lost and your game will corrupt. So when that battery's power goes below the operational threashold of the ram chip, data degrades. Eventually, the battery will be too weak to power the RAM chip at all, and your saves vanish as soon as the game boy is powered off.

If your lucky, your game may have a flash chip instead. This is what most games made today have, and it doesn't require power to hold data. It does have a limited number of writes, but that's not going to be a problem with the amount of writes a game like MMBN makes. That's more of an SSD hard drive problem.

The type of CR2032 battery Nintendo used in these games is a soldered in type like this. When these game batteries die, the best solution is to desolder the old one and install A socket and put a standard CR2025 in it's place so it's replaceable in the future. Sometimes if the game pak has too little space, another soldered type must be installed.

A game pak may also have issues saving and playing the game if the slot connector is dirty, which may be the case if multiple games have issues. There's a kit to clean the connector, but I can't seem to find it for some reason. The other side of the issue is the game itself, which is the case if "blowing on it" makes it work. You will need A set of Nintendo screwdrivers which may also come included with security bit sets, ~90% isopropyl alchohol, and an unused eraser. It's a good idea to go ahead and do this if you're already replacing the battery and if your doing this, you may also think about replacing the battery... erase off the buildup and clean the connector with the alchohol and paper towels or q-tips. There are things like the 1up card for bigger systems, no idea why the GB line was passed over.

Anyway, hope this helped.

We can fix that.

I bought this set

And I used the original screws instead of the included ones. Double check your triggers etc before you screw things shut, the plastic on the shells won't like being fastened multiple times. Don't over tighten. The tweezer proved more useful than I initially thought. I also used a wood barbeque skewer to deal with some hard to reach spots (ie. Pressing the battery connector back).

Good luck!

I'v had good luck with this one. The triwing isn't perfect but I sanded the tip ever so slightly so it fits a little better. I did the blue shell replacement. I also replaced my latches to the metal ones. They work great !

https://www.amazon.com/Nintendo-Screwdriver-Younik-Precision-Products/dp/B06XPX5XLY/ref=mp_s_a_1_1?keywords=tool+kit+for+the+switch&qid=1573221763&sr=8-1

Yea, the dreaded Nintendo screw. Also known as tri-wing or Y screws. Doesn't help you much now, but you can get drivers for them in cheap kits online. Here's one that has a driver for every screw type that Nintendo ever used, starting with the GameCube:

https://www.amazon.com/Nintendo-Screwdriver-Younik-Precision-Products/dp/B06XPX5XLY

I found this, is this good?


Nintendo Screwdriver Set- Younik Precision Screwdriver Repair Tools Kit for Nintendo Switch /DS /DS Lite /Wii /GBA and other Nintendo Products https://www.amazon.com/dp/B06XPX5XLY/ref=cm_sw_r_cp_apa_i_7C4BCbJA2XA4F

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Just look for a tool kit like this one in an Amazon shop near you.

There are some others bigger kits than even have screwdrivers for most smartphones an laptops if you want something more complete.

They usually come in a set like this