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    T400, what's this white tab in the battery slot?

    Discussion in 'Lenovo' started by madmook, Jun 10, 2009.

  1. madmook

    madmook Notebook Evangelist

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    Hi all, got my new T400, and I just wanna know what this little white pull-out tab is that's in the battery compartment:
    [​IMG]

    I'm assuming I just leave it in there?
     
    madmook, Jun 10, 2009
    #1
  2. useroflaptops

    useroflaptops Notebook Evangelist

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    SIM card placement
     
    useroflaptops, Jun 10, 2009
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  3. vert

    vert Notebook Consultant

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    looks like a placeholder for a sim card for wwan.
     
    vert, Jun 10, 2009
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  4. MidnightSun

    MidnightSun Emodicon

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    Yep, it's a placeholder for the SIM card, which would be necessary if you use WWAN. IF you're not using it, leave it in. It doesn't do any harm, and could even help a bit by keeping dust out.
     
    MidnightSun, Jun 10, 2009
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  5. madmook

    madmook Notebook Evangelist

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    Ok, thanks guys.

    Also, on a slightly different tangent, how does the charging indicator light work? I plugged it in, the a/c led lights up, then the battery indicator next to it lights up. Both are green, but the battery light flashes intermittently. How do I know when its fully charged?
     
    madmook, Jun 10, 2009
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  6. MidnightSun

    MidnightSun Emodicon

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    Between the hard drive activity indicator and the sleep indicator (moon), there are three lights, from left to right:
    Powered On Indicator - lit when laptop is on
    Battery Indicator - solid green when battery is plugged in and not charging, intermittently flashing green when battery is charging, solid orange when battery is low (<25%), intermittently flashing orange when charging but still at low charge.
    AC Indicator - lit when laptop is plugged in
     
    MidnightSun, Jun 10, 2009
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  7. madmook

    madmook Notebook Evangelist

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    Do you know if it goes green at 50%+ or something higher?
     
    madmook, Jun 10, 2009
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  8. useroflaptops

    useroflaptops Notebook Evangelist

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    I think it may have to do with the charging? I think it stays green once fully charged. Its yellow i its low. Speaking from experience with older thinkpad models.
     
    useroflaptops, Jun 10, 2009
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  9. MidnightSun

    MidnightSun Emodicon

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    No, it stays solid green when it is done charging - that is not necessarily 100%, as you can specify battery charge thresholds. For me, this is set at 95%.

    The light changes from orange to green at 25% charge.
     
    MidnightSun, Jun 10, 2009
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  10. madmook

    madmook Notebook Evangelist

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    Love the info, much appreciated. The documentation that came with the unit is hilariously anemic (this is my first experience with Lenovo/IBM).
     
    madmook, Jun 10, 2009
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  11. willinja

    willinja Notebook Geek

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    ok i've put the simcard inside the simcard holder
    what will it use ? actually can i use it ?
    is it a modem ?
     
    willinja, Jun 14, 2009
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  12. MidnightSun

    MidnightSun Emodicon

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    Did you get the WWAN option when you configured your T400?
     
    MidnightSun, Jun 14, 2009
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  13. willinja

    willinja Notebook Geek

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    i dunno i just buy it from my local store
    it didnt say anything
     
    willinja, Jun 14, 2009
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  14. jonlumpkin

    jonlumpkin NBR Transmogrifier

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    Go into device manager. Yous should see an Ericsson F3507g WWAN adapter listed if you have the WWAN modem (picture below).

    Even if you have the modem, you will still need to have an ACTIVATED SIM card. This is usually a WWAN plan from AT&T ($60/month), but it can work with a SIM pulled from a GSM smart phone as well (but this may be against your TOS, so you should check).
     

    Attached Files:

    jonlumpkin, Jun 14, 2009
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  15. willinja

    willinja Notebook Geek

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    what if i dont have that kind of option on the device manager ?
    is it not useable ?
     
    willinja, Jun 15, 2009
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  16. jcvjcvjcvjcv

    jcvjcvjcvjcv Notebook Evangelist

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    Well, you read the 1200-page books that come with the most simplistic electronics?

    I don't.

    I only read the safety instructions sheet in my own language to laugh about the poor translation :p
     
    jcvjcvjcvjcv, Jun 15, 2009
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  17. jonlumpkin

    jonlumpkin NBR Transmogrifier

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    If you don't have that part listed in device manager, and you want WWAN, you can purchase a f3507g modem aftermarket. It installs in the open mini-PCIe slot underneath the motherboard. Your ThinkPad is most likely of the default style and is "WWAN upgradeable". This means you have the WWAN antennas, but not the WWAN modem.

    Alternatively, you could use a USB or ExpressCard based modem from a WWAN provider (however, this is less convenient than an internal option).
     
    jonlumpkin, Jun 15, 2009
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  18. willinja

    willinja Notebook Geek

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    will this upgrade cost anything with my warranty ?
    i didnt like to open things up since it just 3 days old
     
    willinja, Jun 15, 2009
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  19. madmook

    madmook Notebook Evangelist

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    Er.... so are you going to be using WWAN or not?
     
    madmook, Jun 15, 2009
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  20. willinja

    willinja Notebook Geek

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    well i dunno i still not sure wether i'm goint to the wwan or using the express card

    how hard actually to put the wwan inside the T400 ?
    any guide with that to do so ? or just let the pro do their job?
     
    willinja, Jun 18, 2009
    #20