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-   -   Solution: N900 Charging from dumb power sources *UPDATED* (https://talk.maemo.org/showthread.php?t=38230)

sjgadsby 2009-12-23 18:18

Re: Solution: N900 Charging from dumb power sources
 
Quote:

Originally Posted by jabawok (Post 439311)
I haven't had a chance to experiment with the FM transmitter yet, but I would assume this is a hardware limitation...

No, it's bug 6792, fixed internally and slated for inclusion in some future firmware update.

fnordianslip 2009-12-23 18:23

Re: Solution: N900 Charging from dumb power sources
 
Quote:

Originally Posted by sjgadsby (Post 439361)
No, it's bug 6792, fixed internally and slated for inclusion in some future firmware update.

Are you sure this is the same thing? The FM transmitter does work, with the USB charger attached, it just works very, very badly. I get no error message at all.

lancewex 2009-12-23 19:32

Re: Solution: N900 Charging from dumb power sources
 
Pictures for the curious would be most appreciated! (If possible)

L

Quote:

Originally Posted by That One Guy (Post 439353)
You just saved me 30 bucks!

I have one of those 12V Cigarette adapters that has 2 USB ports on it. I could never get to work with my N900.

So, I popped it open, heated up my handy dandy soldering iron, jumped the two center pins on each USB port on the circuit board, re-assembled it, and Vioala! The N900 charges!

Thanks again! :D


jackburton 2009-12-24 15:16

Re: Solution: N900 Charging from dumb power sources
 
Wow, you made my day with this post. I went ahead and soldered the two data leads of a flex USB adapter I have and it works like a champ. I'm not good with a soldering iron. It's an ugly joint but it works. I have confirmed that this now works with an iPhone USB wall adapter and the Belkin USB/3 AC outlet adapter. The flex adapter was easy to modify because it is held together by two screws and is not molded together. I got this awhile back at www.cyberguys.com but they don't seem to have this anymore.

Here are some pictures:
http://www.flickr.com/photos/brandersnaxe/4210350827/

http://www.flickr.com/photos/brandersnaxe/4211116724/

http://www.flickr.com/photos/brandersnaxe/4210352687/

http://www.flickr.com/photos/brandersnaxe/4211120280/

http://www.flickr.com/photos/brandersnaxe/4211122794/

cheeze[it] 2009-12-24 16:01

Re: Solution: N900 Charging from dumb power sources
 
wow, I hope I don't have an issues with my power block. I just ordered this:Zagg Sparq I was planning to use it to charge multiple device and also hoped it would charge the N900 on the go. So I guess I'll just cross my fingers and hope for the best =(

texaslabrat 2009-12-24 19:41

Re: Solution: N900 Charging from dumb power sources
 
Quote:

Originally Posted by cheeze[it] (Post 440411)
wow, I hope I don't have an issues with my power block. I just ordered this:Zagg Sparq I was planning to use it to charge multiple device and also hoped it would charge the N900 on the go. So I guess I'll just cross my fingers and hope for the best =(

I have a Zagg Sparq and it does not charge my N900 with a normal USB cable. I have ordered the "official" nokia adapter (which changes old-school nokia charger output into mini-usb, presumably with the data pins shorted), as well as a couple of extra usb cables which I intend to hack along the lines illustrated in this post.

guy2die4 2009-12-25 19:25

Re: Solution: N900 Charging from dumb power sources
 
can a software patch fix it instead of a hardware modification?

Laughing Man 2009-12-26 03:13

Re: Solution: N900 Charging from dumb power sources
 
I need to buy a Nokia adapter somewhere (besides eBay since I don't want to bother with eBay unless it's the last option). NokiaUSA doesn't seem to sell them.

That One Guy 2009-12-26 03:44

Re: Solution: N900 Charging from dumb power sources
 
5 Attachment(s)
Quote:

Originally Posted by lancewex (Post 439442)
Pictures for the curious would be most appreciated! (If possible)

L

Short middle pins.

jackburton 2009-12-30 03:41

Re: Solution: N900 Charging from dumb power sources
 
For anybody who doesn't want to hack anything together, I have found another solution. Get a Motorola SKN6252 mini-usb to micro-usb adapter. Then use a regular A to mini-b USB cable from the dumb charger. I have verified this to work. I got the adapter from Amazon http://www.amazon.com/Micro-Adapter-.../dp/B000IBLD3E. I am using this 'shorty' cable from Cyberguys.com: http://www.cyberguys.com/product-det...roductid=10030.

Here is an action shot:
http://www.flickr.com/photos/brandersnaxe/4227462726/


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