USB charging

[prophetuser]

My new M3100 is great, apart from one thing. I seem unable to charge it using any of the three in-car adapters I have that worked a treat with my Prophet.

Anyone know if this is an issue, or just specific to my M3100 (which appears to not be charging properly even when on USB or mains adapter)?

Cheers,

Sam

[warmkiwi99]

i have tried 2 different USB car chargers and neither have worked. Last one was 1A but still no joy.

[cesardeluxe]

Did you drain up the batt? I mean, was it full discharged when you attemped to recharge it? I have the same problem, no way to recharge it, at least the orange light doesn't show up.
If i try it at home, no prob. But what with a usb? no way :(

[mikechannon]

There are issues with some car charger USB connections.
I do not suffer this problem because I find it very useful to have an "inverter" permanently in the car. For those that have not seen these, it is a device that converts the battery voltage to mains supply voltage. This allows you to plug in as if you were at home. Handy for your hermes, laptop, phone etc etc without the hassle of special in car setups - just plug in with your normal mains plug. Most of these devices just plug into your cigarette lighter socket, although I have mine permanently wired in - so I also have the socket still available.

here is a UK example but I imagine they are available for all countries:
http://www.caravantechnology.com/productslist.aspx?CategoryID=3&selection=1&gclid=CMn-1fXq1YoCFR2UEAodLSvYLw

There is a known issue on car charging where the device will only charge when switched off. If this is your problem see the wiki here or my link below.

http://michael channon (http://michael-channon.spaces.live.com/)

Mike

[k2snowboards88]

I've had that problem too. Strangely enough, restarting my 8525 gets the car charger to start working

[orateam]

try powering off your unit, it will get the orange light. Turn it back on after 5 mins and the charging will hold. not sure why.

[Lancealot]

I was having the same problem as mentioned above with a usb car charger that came with my GPS, however I just received my car charger from HTC FINALLY! With the HTC car charger and home charger, I have no issues charging the Hermes where I sometimes run into problems with say a generic motorola or igo power adapter - these sometimes require me to restart my device before charging begins.

By the way, I am going on a trip where I'll be away from power for 4 days:eek: ... can anyone recommed a portable cell phone charger that runs either off of AA batteries or solar power?

[thedogger]

I think there is another thread about this somewhere, but I don't have time to look it up. I've had this same problem with several chargers that worked fine on my Cingular 8125 (HTC Wizard). History is that there is a firmware issue on the TyTN that checks for a data pin in the USB interface coming from the charger, and if it doesn't have the right voltage on it, the phone doesn't charge. When you totally power down the device (holding down power button for a while and then hitting yes to the power down question), then the charger works. It's when the device is in standby that it doesn't work right, because the firmware checks for the pin to be correct, doesn't find it, and disables the charging circuitry.