Tethering of android phone

Routers 4G LTE, 5G NR, USB modems
1

I tend to use the tethering mode off my OnePlus Android phone all the time, I discovered a bug and I'm wondering if anyone has a solution for this.

By design once the phone reaches 100%, it disconnects the USBc port which then disconnects from the router which then disables the USB tethering option.

Is there a way to not charge the phone once connected to this router and only allow tethering to work?

I tried to play with the phone in the developer mode turned on I'm playing around with the USB setting but nothing seems to work. Any feedback is much appreciated.

Thanks

2

Afaik there is no way, no.

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3

You could tape over the 5v pin on the usb cable - I have a friend who had to do this for his 3d printer, I can't see why it wouldnt work for this too.

There are also little devices "USB Power Blocker" but it's the same effect as the tape which is a free hack.

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4

Just tried the tape and the phone usb tethering option won't light up to enable it. I guess it needs the 5v