Used Very Good Sony WF-1000XM3 Truly Wireless Noise Cancelling Headphones with Mic - £53.10 - Sold by Amazon Warehouse / Fulfilled by Amazon

Hi folks,

This is a PSA post for everyone. As I said I received my two "Like New" units but they would not pair and no blue lights. The symptoms were that they would glow red in the charging case but, crucially, the lights on the earbuds were basically flickering.

I am an electronic engineer myself so was not happy to just return these as I had a sneaking suspicion this was a small issue. I have taken my earbuds apart and figured out the issue. The issue is basically that the battery inside has dropped below the cutoff voltage, in my case 7mV. What this means in practice is that the case/earbud cannot charge the batteries as to it it thinks the batteries are not connected (0V).

To fix:
- Take apart the earbud. You can use your fingernail to pry off the cover.
- Below you will see two screws. Remove these screws.
- Take off the black piece of plastic. The battery is connected to this.
- Get an AA battery. Touch the positive of the AA to the bottom of the ear bud battery. This is the side that touches the circuit board in the ear bud.
- Get a piece of wire and touch it against the negative of the AA and the TOP of the ear bud battery.
- Hold this for a couple of minutes.
- Put the battery back into the ear bud. Screw down the screws.
- Place the earbud into the charging case. The red light should come on and be solid instead of flickering.
- This now means the unit is charging the battery.
- Let it charge for an hour or more.

If you have a multimeter, test the voltage of the earbud battery initially - it should at close to 0V.

Once the battery in the earbud goes over roughly 3V the earbud will become alive. You can check this because once you remove the earbud from the case it will instantly start flashing blue.

I believe this issue is 90% of all the issues and virtually none of these earbuds have anything defective apart from an overly discharged battery.

Best of luck to everyone! (edited)

People will take all sorts of drugs from unknown sources made with god knows what... Yet moan about earwax in used earphones...You do realise they just need to remove the old buds right?

Just been looking at them and was really surprised that they don't have independent volume control.
My cheap MPOW ones do and I can't imagine being without it.

Turned up in what I'd say is acceptable condition but no spare tips despite the page saying they are included in the box. Amazon customer services of no help whatsoever. Return or fork out for a set of tips.

Got mine (like new) today - no blue lights at all, will charge but won't turn on or pair at all. Been charging for 2 hours.

Gone through Sony's help page on this, but this doesn't look good - any ideas from anyone/do any of these work?

My like new pair arrived yesterday.

All in good condition though battery dead.

Took a while to sync, but eventually just came up on my phone, which is a Sony Xperia so I may have just been lucky with that!

Both earphones working which sounds better than most, but they keep dropping out, with the sound quality or eq seemingly changing. Not sure if they're faulty or if I'm doing something wrong or need to set that up but it's frustrating already so they may well have to go back which is really disappointing.

Surely must state that these are used items. Used very good is not always "very good" either. I have returned 3 items labelled in this condition

Good price if you take a punt and they are customer returns and you are happy with small comsetic damage though (edited)

How much ear wax comes with them?

I had a bad experience with this in general after 2 years of very light use. Nothing to complain on sound quality or noise cancelling but after 2 years the battery last maximum 2 hours…

I don’t care how good the ‘deal’ is , I am not using something that’s been in other peoples orifices

Decent price but I have to recommend against these. They are big and honestly the most uncomfortable set of earphones I've ever owned. Ended up with these and I'm super happy with them
amazon.co.uk/gp/…c=1

Only one left, someone buy it before me please!

Great deal. I bought these 2years all on a similar, like new. Used them several days a week on the gym and never let me down. Sounds pretty decent too. Silly comments regarding ear wax as they come with several replacement soft buds.

Used earbuds? Yuck

For sound these are great, but working with Apple devices : horrible.

Mine like new arrived yesterday and the left earbud is completely dead. The charging light (red) also flickers when in the case and there is no sign of life after removing from charging and I am unable to put them into a pairing mode. Sending them back.

My "like New" came today. In original box and can't find any sign of use. All accessories in the box. No issues like the previous one I had (used very good). Connectivity was easy and paired just picking it out of the case. Fully charged and updated to the latest firmware too. Guess the £3 more for like New is worth it.

I got a pair "like new" that were literally sealed and untouched for £56. Amazing deal 😁

I'm sure if Amazon sold soiled clothes it would get voted hot no matter.

I have the updated version of these and the sound is great.... Although wind noise when running is quite bad if a windy day

I had some of these from Amazon marketplace but returned as the connection kept dropping. Replaced them with m4s which are incredible. You can find them online for c£99-130