I have a really old spool of heavily fluxed and leaded stuff. For modern solders, low-melt seems to be the way forward for rework.

That's flux, it helps solder flow more easily, makes for better repairs.

eBay or Aliexpress, you can usually find the part number by reading the number on the old IC and google searching it to confirm.

Yes, they're often unique to the product, which makes replacement jacks difficult to find.

@@Adamant_IT thank you very much for answering, i had a strong suspicion that it was like this, because when i see the aux in the laptop, i see six pins, mine has 7 or 8 which go onto the pcb board in a really strange way so that some gaps are tiny and others are really big or wide. My bose was near a wall and when i shoved it back the aux broke. I pondered over sending it in to repair and even heard that there was a good company which does those type of thing for less money than usual, but then i thought that it could still be a very high price. The problem was that when i put the aux in, i only heard the right side of the speaker which is of course not the way it should be. When i played with the aux i could manage to make it play in both speakers only when i lifted it so first i put a battery beneath it so that it would push against the top so you could hear both sides. Of course also not optimal. Then i screwed the damn thing open, disconnected the pcb so i could take a look at the aux. It was broken into the left direction so that the two metals which should make contact with the cable when it is plugged in could not simultaneously make contact with the aux metal which was pushed in. Also the whole front aux mantle was broken into pieces. So, in the end i put superglue on it, held it together with extreme force for about a minute, and now it works again because it can make full contact. It is a pity companies don´t support repair so you have to always buy new stuff, i love my bose.

@@Adamant_IT Hmmm... Yah I guess. Now I'm using Rs. 150 ( 2.2$ ) USB to 3.5mm Audio jack adapter.

@@AdarshRevankar is it working, that usb?

Yes. It did work for 6months later it didn't work. So, now I switched to Bluetooth Headphone

@@AdarshRevankar thanks for reply.my headphone jack is also not working . So I'll buy bluetooth headphone too.

Screwdriver set, soldering iron, flux, and tweezers I think. The iron I had in this one is a WEP 2-in-1 station, but these days I use a TS100, which is vastly superior.

@@Adamant_IT Ok awesome. Thank you! I'm going to try it out. Wish me luck 🤞🤓

@@Adamant_IT I don't think it's a software issue because I tried both windows with Realtek's driver and also Kubuntu. Unfortunately I'm not anywhere near Shaftesbury to take the laptop to your shop. I think I'll just get one of those cheap USB sound cards. Thanks for your help

@@-dazz- did you end up resolving the issue? I have the same problem with my headset not being detected so it defaults to the trash built-in laptop mic.

that vivobook has a mx250, pretty good for performance, and ASUS is typically more reliable and repairable. Although you shouldn't rely a laptop purchase on repairability since they all match in terms of that.

Flux, it helps the solder flow better, and create stronger joints.

Thanks a lot.. Got it

I had the same issue .. first of all, I assume u tried another set of monitors/headphones? Do that first . If the problem persists, it would only make sense that the problem is with the jack.