N9 WONT Charge Over USB
 

I recently bought an external battery for my N9 which charges either using the solar panel or through a usb charger.

It then has a USB port which can be used to connect it to various devices to charge them.

The problem is, EVERY flipping device works apart from my stupid N9.

This is irritating, I constantly get the "Insufficient power to charge device"

This would be fine if it just happened on the external battery, but I also get this message on my PC AND my Laptop!

The N9 also detects the USB lead as a computer constantly asking what mode I want it in

"Mass Storage/Sync and Connect/SDK"

Its not being connected to a PC just a battery so why is it asking me for a mode? It also seems to be charging for the first few seconds then when I select a mode of just select nothing it gives me the Insufficient power message.

Im running out of things to try :(

Re: N9 WONT Charge Over USB
 

You did hook the cable to back of your PC (not to USB hub)? If your USB ports won't deliver enough current the phone won't charge. Why do you want to charge your phone from your PC? Wallcharger will do it a lot faster, but if you really have to charge it from your PC use Y USB cable like this

To get that external battery to charge your phone you need to short the data wires so the device will get full power.

Re: N9 WONT Charge Over USB
 

I don't :P I just tested it using a power USB hub as well as my Laptops powered when off port. I use the external battery as a way to charge my phone in my car and keeping my 12V port free and no wires trailing everywhere.

Could you please explain how to do this? I have heard about it but can't seem to find a real explanation of how to do this

Re: N9 WONT Charge Over USB
 

Re: N9 WONT Charge Over USB
 

That still doesn't really explain what I have to do :S

Do I have to short the cable pins or open up the battery and short the data pins there?? :S

Re: N9 WONT Charge Over USB
 

I'm facing the same problem with my N900 . but in my case wall charger does not charge at all. The PC USB ports sometimes charge and some times it gives me "Insufficient power" notification. I have put my problem here http://talk.maemo.org/showthread.php...31#post1189531
I still can't figure out what the problem is!

Re: N9 WONT Charge Over USB
 

Now it seams that were are on dangerous waters.. If you don't know what your doing you risk destroying your phone or in the worst case causing a fire. Lithium batteries are DANGEROUS and should not be messed with if you don't know what you are doing. Do not short ANYTHING before you fully undestand what you are doing.

PS. whatever you do DO NOT short anything on your battery!

Re: N9 WONT Charge Over USB
 

From my recent experience with N900 I would say your USB port is about to break. When it happened to me I got error: "Insufficient power". Have you tested your wallcharger to be in working order?

Anyways this sub forum is for N9 not N900. They are totally different devices and these problems aren't related.

Re: N9 WONT Charge Over USB
 

By battery I meant the external battery I have :P

Not the actual lithium battery inside the phone or even inside the external battery.

I meant within the circuit board of the external battery where the usb port is

Re: N9 WONT Charge Over USB
 

I would say the safest option is to follow what the other have done and short the pins on the cable. One with enough knowledge can short it on the circuit board, but without enough knowledge I would advice against it.