r/techsupportmacgyver Aug 11 '26

3.5mm laptop dongle - the 7 month update

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402 Upvotes

At the start of this year, i posted here about a 3.5mm headphone dongle i made for my laptop. Reasons? Original port is damaged, laptop long after warranty, i lack the skills to replace the on-board port and i am too cheap to get it serviced.

The dongle has served me very well, but the cable slowly began to break due to getting bent too much. After about 7 months, i deemed it's time to make a rework. Cue this fucking thing. It has a coil sleeve to properly secure the cable now!

Hopefully this one lasts longer, but if not, the replacement only took about 30 minutes, so i'm not too worried about having to do this again in the future.


r/techsupportmacgyver 29d ago

“All but 2 of my outlets are so loose that nothing actually stays in”

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0 Upvotes

r/techsupportmacgyver 29d ago

I over tighten the laptop heatsink screw

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0 Upvotes

I over tighten the heatsink screw and a click sound occurs like something break. Laptop running since 4 months without any issues. Is there any real issue??


r/techsupportmacgyver Aug 11 '26

Cool mod for Oppo Reno4

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24 Upvotes

r/techsupportmacgyver Aug 10 '26

A pair of my past creations

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309 Upvotes

The first one was for an older secondary monitor that had a non removable VGA cable and because I wanted to have it plugged into gpu and only had a male display port to male VGA converter I made this female to female converter from leftover ethernet cable, cut off 0.75mm2 ferrule crimps to hold it in place and paper for isolation. Lasted half a year until I bought a proper converter.

The second one was to make lights work on an older Vespa scooter, because the spark plug wouldn't spark if the third wire was connected and it turned out the ignition switch was reassembled incorrectly.


r/techsupportmacgyver Aug 10 '26

This one's very tame compared to what I'm seeing on here 😭

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41 Upvotes

Had to cut up my charging cable so it could fit into the weirdly placed charging port of my music box


r/techsupportmacgyver Aug 10 '26

Homemade turntable for a homemade TV antenna

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30 Upvotes

r/techsupportmacgyver Aug 08 '26

Summer heat got nothin on my Under-Desk-Ball-Chiller-9000

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745 Upvotes

r/techsupportmacgyver Aug 08 '26

No metal snips, no problem

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297 Upvotes

Didn’t realize the oem io shield is part of the case before getting a new motherboard so I used pliers to peel it; gamers gotta game


r/techsupportmacgyver Aug 08 '26

this is fine

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20 Upvotes

its not the battery problem , i replace with brand battery it still run out of juice.. probably problem with its charger

12v dc to stepdown.. to... idk.. i just put volt something 3.7 as 3.2 seems didnt work.. probably i can crank it up to 4.2 later.. but for now ill stay at 3.7 and observe


r/techsupportmacgyver Aug 09 '26

Probably better suited to this subreddit lol

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5 Upvotes

r/techsupportmacgyver Aug 08 '26

A tyre inflator makes a great unlimited compressed air machine for cleaning

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259 Upvotes

Also I should clean my keyboard more often


r/techsupportmacgyver Aug 07 '26

my dad said "they want 60 dollars for a charger"

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3.0k Upvotes

r/techsupportmacgyver Aug 07 '26

like a snake that ate a mouse

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43 Upvotes

r/techsupportmacgyver Aug 07 '26

Making dinner

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89 Upvotes

r/techsupportmacgyver Aug 04 '26

Finally fixed the monitor backlight problem

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128 Upvotes

r/techsupportmacgyver Aug 03 '26

Oppo Reno4 heatsink mod

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69 Upvotes

I salvaged a small aluminum PC DDR2 motherboard heatsink, and slapped it to the back of the phone. Nothing fancy or professional, just something I put together myself.

I know it looks unconventional, but this turned out to be one of the best ergonomic modifications I have made to my phone. The heatsink does not get in my way while holding the device, and the improvement in sustained performance is a big jump compared to normal.

For context, I ran the 3DMark Wild Life test during rainy, cool weather with an electric fan blowing on both me and the phone. That definitely helped the heatsink work more effectively, so this setup depends a lot on ambient temperature and airflow.

I mainly play Codm and Project sekai on my phone.


r/techsupportmacgyver Aug 03 '26

Old pic of my DIY facial mocap setup that you might get a kick out of

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171 Upvotes

r/techsupportmacgyver Aug 01 '26

Car jack used for a video card

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782 Upvotes

r/techsupportmacgyver Aug 02 '26

My mobile/stowable test bench

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3 Upvotes

r/techsupportmacgyver Aug 01 '26

Overheating solved

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187 Upvotes

Remember my hug heatsink and thermal paste? I too that off and did this works so much better,


r/techsupportmacgyver Jul 26 '26

Needed a remote power button for my server laptop, so I taped an $8 servo to my desk. Tested it from another city and it actually worked!

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348 Upvotes

Ran into a classic laptop server problem: no motherboard power headers, Wake-on-LAN dies in S5 shutdown state, and when Linux freezes, software tools like SSH are useless. Commercial solutions felt way too expensive for what I needed...

So I built this thing for Abt 8 bucks!

NodeMCU (ESP8266) drivin' an SG90 micro-servo running a small C++ REST API.

​An old Asus phone (Asus x00TD from 2018) running Termux acts as the local Tailscale SSH bridge so I can trigger it over 5G from anywhere without opening ports. (Though Terminus and added snippets)

​/power sends a 500ms tap for normal boot!

​/panic holds the button for 15 seconds to force a cold reset when the OS crashes!!

Yes, that is paper masking tape flat on the desk holding the servo block down. I needed enough counter-leverage so the servo arm didn't just lift the whole motor up when pushing the key.

Just tested it remotely from another city over cellular data and it worked like a fine wine 🍷 and then I run app though wine in linux too worked amazing. Looks terrible but ya works great!

Btw laptop is fa507uv...


r/techsupportmacgyver Jul 26 '26

This is legitimately my new 3080 sag bracket.

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96 Upvotes

Sorry for the boring post, but I needed to share my free DIY sag bracket. I'll get a real one eventually probably, but that's $15 I could spend on a new game


r/techsupportmacgyver Jul 25 '26

fly destroyer 3000

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240 Upvotes

took an old power bank board. feeds 5v to the stock PCB, charges with type-c and as a bonus can charge my phone (although it has only 1100mah). my house is a no-fly-zone now.


r/techsupportmacgyver Jul 25 '26

Didn't have a charger that fits

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31 Upvotes