USB Synching WITHOUT Charging, Is it possible???

[risidoro]

Hi,
i've googled around but haven't been able to solve this problem: every time i connect my magician to the usb port in my PC, it starts synching and charging at the same time. I know this is correct behaviour since USB ports are able to supply power to connected devices.

Anyway, i'd like to know if there's the possibility to avoid charging from the USB port (while retaining, of course, synching capability).

I need this hack 'cos i often connect my magician to the pc only for the time needed to sync my contacts/appointments (just a few seconds/minutes) or to install some small programs and i fear that recharging the battery for so a short time and 5-10 times a day may reduce its capacity or even destroy it.

I'd like to sync my magician without recharging its battery, do you thing it is possible? Is there a registry hack (either in ppc or in winxp) to disable USB power supplying? Do i need to manually hack my USB cable by cutting out the red and white power wires?

Thanks for your help,
bye bye,
Isidoro

[TheBrit]

You really have nothing to worry about. Lithium rechargeable batteries do not mind having small frequent top ups.

Ni-Cads on the other hand, yes they would be ruined.

Your phone uses a Lithium battery so as I said, no need to worry. :wink:

[iDG]

If you really wanted to, you could build a custom USB cable which does not carry the power, by omitting the GND and +5V pins (the first and the last pin of the usb connector).

This is not really needed, because modern batteries don't get damaged by multiple recharges...

[risidoro]

If you really wanted to, you could build a custom USB cable which does not carry the power, by omitting the GND and +5V pins (the first and the last pin of the usb connector).

I tried it but it didn't work: the phone doesn't charge, ok, but it doesn't' sync too!!! Winxp doesn't see it.

Maybe i should keep ground wire?!? Mah!


This is not really needed, because modern batteries don't get damaged by multiple recharges...

I know, i know, but i would definitely feel more safe if i could sync without charge. :(

Anyway, thank u all,
Isidoro

[alokbhargava]

Use bluettoth to sync the device with pc, your problem will be solved.

[Pyrofer]

All 4 wires are required for usb to work.

Removing any of them will prevent USB operating.

As stated, it doesnt matter about the top up charging, dont worry.

[pedjajovicevic]

Disable USB charging

HKLM\Drivers\BuiltIn\usbfndrv

and change the

EnableUsbCharging to '0'

then

soft reset

[BobYoung]

I'd like to try this on my Ameo. How do I use the REG files contained in the ZIP file? I am using the Ameo to connect my laptop to the Internet. It works great over a USB cable but I cannot get it to work with Bluetooth. I am concerned about constant short recharges. Is there a special folder to put the REG files into? How do I make the Ameo read the values before doing a soft reset?

Thanks

Bob

[BobYoung]

Hi

I'd like to try your solution with editing registry on my T Mobile Ameo. Could you tell me wwhat I need to do with the REG files. Is there a special folder to put them in? How do I invoke the setting before doing a soft reste ?

Thanks

Bob

[gerddevries]

I searched for that key you wrote,
but this key doesn't exist on my (german) magician.

HKLM\Drivers\BuiltIn\usbfndrv

Under BuiltIn there are many subkeys, but no usbfndrv, i searched the complete Builtin key but no key you wrote.

Can you tell me, where I maybe can create this key. Would it work ???
OK, i will try, but i don't know when. Two childs hold me away from my notebook :-)

[Kingdombuilder]

Are those registry files executed from the phone or the PC?

[Cotulla]

on your device.

but it won't work - there are no ways disable usb chargin in Magician via regsitry.