HOW do I change the language on my earplugs tws-x9?

https://www.google.com/search?q=Onn+5.2+tws+manual

Onn Wireless Earbuds Manual Model 100016495 ...

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Sep 5, 2022 - Onn Wireless Earbuds Manual Model 100016495 Instructions Pairing Touch Control Charging Onn TWS Earphones Manual Onn Earbuds Manual.
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the batteries bad is first replace them.
no charger on earth can charge any bad battery.

what PC is this. do you mean this?
if fails on all USB ports all PCs then the batteries in the buds are NO GOOD now.

USB Dual Charging Cable for HBQ i7 i7s Bluetooth Headset 20CM Power Charger Cable,I7S and I7 Earbuds USB Charging Cable

Check your menu for languages and change accordingly..

it must be problem of your head-phone/head-phone plugs/you cannot plug the head-phone correctly,this three problem if happen you must change the earplug.

Try this website:

http://www.universalremote.com/resources/software/tutorial/UR5U-8700-Series.htm

I just used their "web app" to program my UR5U-8780L-TWS remote (from Time Warner). It's fairly simple to do, just follow the directions. Good luck!

hey bro,
i fix more problem like your's. by change the flex up. with volume+vibrat button+headphone.
change this and all your problem will be good.
memeh Fixphone