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BlackBerry charger doesn't charge Motorola V3xx Razr

Discussion in 'Electronic Repair' started by Beloved Leader, Dec 20, 2013.

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  1. Hi. I have a Motorola V3xx Razr phone. It has a USB Mini-B jack for charging.

    I tried charging it with a BlackBerry wall wart. I can't make out the modelnumber of the wall wart due to the small size of the type. I can come up with that later. When I plugged the BlackBerry wall wart into the phone, thephone came on, but the battery did not charge.

    I tried another wall wart. It's a Verizon wireless model PW-1BGT charger, which can source 800 mA at 5.0 V. When I plugged it into the phone, the phone's "charging battery" screen lit up. It did charge the phone's battery pack. When I disconnected it, the phone turned itself off.

    The pinout chart at Wikipedia makes me think that there is difference in the way pin 4 is wired, rather than an inability of the BlackBerry charger tosource sufficient current.

    Am I right?

  2. is wired, rather than an inability of the BlackBerry charger to source
    sufficient current.
    Solder pin 4 to pin 1, it will charge then.
  3. == == == ==

    Thanks for the answers.

    I managed to make out the model number of the BlackBerry wall wart. It is PSM05R-050CHW (R) P {though I think the (R) and P are not part of the model number.} The RIM part number is ASY-07559-001. It is able to source 500 mA at 5V.

    Hmm: someone's trying to sell one at Amazon:

    And here too:

    They call it a charger. I guess it has enough output for the models of BlackBerry devices listed, but not enough to charge the V3xx Razr. Either that,or I wouldn't have to solder pins 1 and 4 for the device to charge one of the specified BlackBerrys, as one respondent said would make it charge the Razr.

    I left the Razr at home, but a search shows that it uses a BZ60 battery, said by at least one seller to be good for 900mAh.

    Thank you again.
  4. Geo

    Geo Guest

    I think so...
    There appears to be a 200k resistor /inside/ the motorola charger
    cable moulded mini USB plug:-
  5. Thanks for the link. The page at Pinoutsguide seems not to use the same nomenclature for number pins as the page at Wikipedia. It's easy enough to figure out what they mean.

    My takeaway from this is that universal chargers are not as universal as they seem.

    Thanks again for everyone who has helped me.
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