1. wingman7000's Avatar
    Forgive my ignorance if this is a stupid question, but does anyone know what the row of four contacts are on the wireless backplate? I assume that is how the battery charges wirelessly, but why are there four? I would assume it only needs two, a positive and negative, but could it be two positive and two negative?

    On the same note, what are the two contacts for towards the top? I thought it may be for the flash since those are on both the normal and wireless, but I'm not sure. Any help would be appreciated.

    Thanks to wpcentral member TaliZorah for the picture.
    backplate-contacts.jpg
    12-10-2012 07:36 PM
  2. hopmedic's Avatar
    The four are for the wireless charging. You have to get a wireless charging cover, which will have contacts, and that's what the wireless charging will use to charge the battery with a wireless charging plate/cover. The top two are for NFC.
    12-10-2012 09:59 PM
  3. mundyb's Avatar
    Most phones with removable backs also have the antenna built into it.
    12-10-2012 10:16 PM
  4. wingman7000's Avatar
    The four are for the wireless charging. You have to get a wireless charging cover, which will have contacts, and that's what the wireless charging will use to charge the battery with a wireless charging plate/cover. The top two are for NFC.
    Thanks for the response. Do you know why there are four contacts for the battery? Do you know which ones are positive/negative or how can I find that info?

    Thanks
    12-10-2012 10:18 PM
  5. hopmedic's Avatar
    No, sorry.

    But it has nothing to do with antenna. If you look in one of the booklets that came with the phone you'll see where the two antennae are located. These four contacts are solely for the inductive coil that is in the charging cover for wireless charging.
    12-11-2012 05:50 PM

Similar Threads

  1. What are the best wireless headphones
    By Mooncow27 in forum Windows Phone Accessories
    Replies: 17
    Last Post: 01-03-2013, 08:25 AM
  2. Replies: 3
    Last Post: 11-03-2012, 11:23 PM
  3. Replies: 5
    Last Post: 04-19-2012, 11:14 AM
  4. Replies: 21
    Last Post: 03-09-2012, 09:17 PM
LINK TO POST COPIED TO CLIPBOARD