1. bseuivafom's Avatar
    Question as title.

    The 930's clearly overheating and at full or near-full CPU usage when I take it off charge, and it takes it a good 10-20 minutes of unplugged use / rest to return it to normal... until I plug it in to charge again.

    Whereas if I do exactly the same thing with a 1020 on DP - it's fine, or should I say as molasses-like as it usually is.

    Why?
    12-19-2014 01:11 PM
  2. gpobernardo's Avatar
    Question as title.

    The 930's clearly overheating and at full or near-full CPU usage when I take it off charge, and it takes it a good 10-20 minutes of unplugged use / rest to return it to normal... until I plug it in to charge again.

    Whereas if I do exactly the same thing with a 1020 on DP - it's fine, or should I say as molasses-like as it usually is.

    Why?
    How were you able to determine CPU usage?

    I'm suspecting it's the battery that's heating up while charging your phone since the phone processors are really not that big to generate enough heat for it to be felt through several layers of insulating silicon and plastic - unlike laptops.
    12-19-2014 03:20 PM
  3. bseuivafom's Avatar
    How were you able to determine CPU usage?
    Because it takes several seconds to respond to a touch. It will, but everything takes an age. Until I unplug it and it cools down.

    The actual outside temp of the phone is similar to when you're playing a game, etc - not incredibly excessive, but clearly doing something, but I have a case on it so there could be some heat I'm *not* feeling.

    The morning after I unpin Cortana, it's totally fine. Re-pin, same issue.
    gpobernardo likes this.
    12-20-2014 10:29 AM
  4. gpobernardo's Avatar
    Because it takes several seconds to respond to a touch. It will, but everything takes an age. Until I unplug it and it cools down.

    The actual outside temp of the phone is similar to when you're playing a game, etc - not incredibly excessive, but clearly doing something, but I have a case on it so there could be some heat I'm *not* feeling.

    The morning after I unpin Cortana, it's totally fine. Re-pin, same issue.
    Alright, thanks for the clarification. Just yesterday (a few hours ago, actually), my Cortana and search functions won't even start... but I'm not experiencing any heat issues.

    It appears that in your case having Cortana pinned to your start screen is either prompting the processor to run or downloading data to update the tile (or both). The first (processor load) would account for the lag, while the second (data download) would account for most of the heat since data transfer over the phone antenna is very power intensive. Can you compare the phone signal reception of your 930 with your 1020? Poor signal reception could prevent Cortana from updating, which could tax the processor longer than it should.
    12-20-2014 12:03 PM
  5. bseuivafom's Avatar
    On wifi. As I said, while charging.
    12-20-2014 01:06 PM
  6. bseuivafom's Avatar
    So actually, unpinning it didn't do the trick - it has something to do with Cortana, because what I found was that on the days I didn't find the phone to be hot I didn't use Cortana, period - i.e. no web searches and so forth. But even when the Cortana tile was unpinned, the morning after I'd used Cortana capabilities the phone would be hot and the handset unresponsive for again around 10 minutes at least until it was cooler to the touch.

    Now after I turned off Cortana, used standard Bing Search - I have no more issues, touch wood.

    Could anyone tell me what's going on here?

    Again, the use cycle:

    Use phone - with Cortana for even just web search - charge phone overnight. Following morning handset is hot and unresponsive.

    Turn off Cortana - same use cycle - handset seems OK. Cool and responsive.

    I'm just fed up of these silly little gotchas - if it's not one thing in WP, it's another.
    12-22-2014 05:43 AM
  7. rockstarzzz's Avatar
    I say it's more to do with your GPS. I'm not sure but will look into GPS chipsets for both handsets.
    12-22-2014 05:45 AM
  8. bseuivafom's Avatar
    I dunno, maybe my phone's faulty. Entirely possible.
    12-29-2014 10:08 AM
  9. GoodThings2Life's Avatar
    How much stuff do you have in your notebook that is location based? Perhaps that could be a culprit.
    12-30-2014 08:54 PM
  10. bseuivafom's Avatar
    How much stuff do you have in your notebook that is location based? Perhaps that could be a culprit.
    I've actually never really used Cortana so I wouldn't know. It seems to be running OK without it enabled so I'll keep an eye on things.
    12-31-2014 04:28 AM

Similar Threads

  1. Please i need fix for the problem for Lumia 730
    By Abdullah_Naeem in forum Nokia Lumia 730 & 735
    Replies: 4
    Last Post: 12-20-2014, 01:16 AM
  2. TheChive launches 'probably the best app in the world' for Windows 8.1 and Windows Phone
    By WindowsCentral.com in forum Windows Central News Discussion
    Replies: 1
    Last Post: 12-19-2014, 07:34 PM
  3. Minor scratches on screen
    By dlalonde in forum Microsoft News & Rumors
    Replies: 2
    Last Post: 12-19-2014, 01:54 PM
  4. [How do I...?] Add App to Pinned Contact
    By EBUK in forum Nokia Lumia 730 & 735
    Replies: 3
    Last Post: 12-19-2014, 01:48 PM
  5. Microsoft might just have their own Xbox VR headset in the works
    By WindowsCentral.com in forum Windows Central News Discussion
    Replies: 0
    Last Post: 12-19-2014, 01:00 PM
LINK TO POST COPIED TO CLIPBOARD