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4.0 Coming Soon!

Discussion in 'Android Devices' started by elemteacher2be, Dec 16, 2011.

  1. elemteacher2be

    elemteacher2be Well-Known Member
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    I am so exciting to read just moments ago that Google has said that the Nexus S will be getting the update to 4.0 over the air starting today!

    But... I'm hoping someone will come up with a link to do it manually as well... I can't wait! :)
     

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  2. D214TX

    D214TX Lurker
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    I just read it too man I can't be more excited I'm just patiently waiting :)
     
  3. brounmoney

    brounmoney Android Enthusiast
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  4. DexTyler

    DexTyler Well-Known Member
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    So is the update going out worldwide as of today or just the US?
     
  5. Crimson13

    Crimson13 Well-Known Member
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    No update on Rogers in Canada. Grabbed the one from the link. Going to give it a try.
     
  6. Crimson13

    Crimson13 Well-Known Member
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    Nope, signature doesn't match :-/ so i9020A is NOT supported at this time.
     
  7. DexTyler

    DexTyler Well-Known Member
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    Is I9023 supported?
     
  8. bfksc

    bfksc Android Expert
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    It's a good thing the sigs were checked as this update has the radio for the T-Mobile/Wind version which has a different radio. At the very least we need an AT&T version, at which point the Rogers/Bellus version should be out too.
     
  9. bfksc

    bfksc Android Expert
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    Curious if the update to ICS fixes the annoying battery charge level (96% max instead of 100%).
    :thinking:
     
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  10. DexTyler

    DexTyler Well-Known Member
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    Wasn't that put in place to help the battery? I can't remember what was said but it was something along those lines.
     
  11. elemteacher2be

    elemteacher2be Well-Known Member
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    I think that is a battery protection thing - charging mine right now - will let you know if it goes all the way.
     
  12. bfksc

    bfksc Android Expert
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    Nope, that was just some wacky story about extending battery life which was totally false - Li-Ion cells don't suffer from memory or overcharging issues as they have their own internal microchip in the battery that cuts off charge when the cells are fully topped up. And Li-Ion cells work best and have longer service life when fully charged and topped up regularly. In fact, it's better to NEVER let a Li-Ion battery run all the way down as that is near the worst condition for these types of batteries.

    The problem is it's a coding error where the charge circuit in the phone cuts off the charge supply early at a lower voltage than full charge (about 3.9v instead of 4.1v). Google hasn't deemed it a big enough error to worry about, although it's very annoying when the battery won't fully charge. I would prefer a fully charged battery that lasts another few hours on standby if needed. There simply is no reason not to fully charge a Li-Ion battery.
     
  13. OnlySkillz

    OnlySkillz Member
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    Finally! BEEN waiting 2 months for this.

    But no updates for Koodo in Canada yet either.
     
  14. elemteacher2be

    elemteacher2be Well-Known Member
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    charging is taking a VERY long time for me. Started charging 5 hours ago from about 35% and barely 88% now.
     
  15. megadude

    megadude Member
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    are you using a usb charger or a regular charger?
    usb chargers are slower than the regular ones
     
  16. quantumrand

    quantumrand Android Expert
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    Actually, Li-Ion batteries maintain the best health when kept around a 50% charge. For obvious reasons, this isn't practical for smartphones, but laptops have recently started incorporating "battery health" and "battery life" charging profiles. The battery health profile is intended for people who typically leave their laptops plugged in and float the charge around 45-50%. The battery life profiles top it off at the expense of some overall lifetime use for users who spend most of their time away from the plug.

    Li-Ion cells (the cells themselves, not the overall battery) do not like being overcharged, and overcharging is extremely detrimental to their health. Yes, the charging circuitry in the Li-Ion batteries can control the current going into the battery during charging, but only to an extent.

    Li-Ion cells sit very happily at around 3.7 volts, as that's their natural output, but when they near full capacity, they output up to 4.2 volts. In order to charge them to that full capacity, you have to supply a 4.2 volt input current. The problem is that if the charging circuitry doesn't cut off quickly enough, or if there is an unexpected current surge, you could easily kill a cell during the process. Supplying a maximum input voltage of 3.9 volts is a safety measure to prevent overcharging. Yes, you could use 4.0 or 4.1 volts and get closer to the maximum charge, but as the battery ages, 4.1 volts, or even 4.0 volts, can eventually become enough to overcharge a cell and permanently kill it.


    For those curious, I just unplugged my 4.0.3 Nexus S while "Charged" and the battery reads 96%, so the bug, for those who prefer to call it that, does persist with the new update.
     
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