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  1. roni09riku's Avatar
    I have a Nokia Lumia 1520 (RM-937).

    I'm thinking of updating it today to WP8.1 using developer preview. But before I do that, I wanna ask those who own the same phone as me what are the bugs or issues that you encountered when you installed it. I don't wanna mess up the camera, microphone, battery, etc. Is it all working well now?

    I forgot to ask: how big the estimated file size of the WP8.1 OS?
    Last edited by roni09riku; 05-19-2014 at 09:10 PM.
    05-19-2014 08:41 PM
  2. Antony Chan's Avatar
    I just had it updated yesterday, gmail screwed up for some reason and I had to hard reset the unit. Luckily did a backup to the cloud and managed to restored most of the things..except some game progress was gone forever.

    The other thing i noticed was the battery consumption, it drain so fast when i had Cortana turned on. I had it turned off and probably will test it again. Other than that, WP8.1 is awesone!!
    05-19-2014 08:56 PM
  3. roni09riku's Avatar
    I just had it updated yesterday, gmail screwed up for some reason and I had to hard reset the unit. Luckily did a backup to the cloud and managed to restored most of the things..except some game progress was gone forever.

    The other thing i noticed was the battery consumption, it drain so fast when i had Cortana turned on. I had it turned off and probably will test it again. Other than that, WP8.1 is awesone!!
    You can still use the front and main camera, microphone, wifi with no problems? And how fast did the battery drain? It seems to go on for 2 days with regular use, hopefully it doesn't go down to less than a day when updated.
    05-19-2014 09:05 PM
  4. roni09riku's Avatar
    Done updating to 8.1, no issues with the camera, microphone and wifi. Hopefully no issues at all with come out.

    And Cortana is awesome!
    05-19-2014 11:32 PM
  5. Joaquim Reis's Avatar
    Dont forget to install the WP8.1 latest update (might have to install or reactivate preview for developers) that fixes battery performance :)
    05-19-2014 11:44 PM
  6. roni09riku's Avatar
    Dont forget to install the WP8.1 latest update (might have to install or reactivate preview for developers) that fixes battery performance :)
    I'm at 8.10.12382.878. Battery seems okay. Went from 100% to 83% in about 30mins, maybe because I was configuring Cortana, testing my apps, etc. My phone seems to run even faster now.
    05-20-2014 12:22 AM
  7. Antony Chan's Avatar
    I'm at 8.10.12382.878. Battery seems okay. Went from 100% to 83% in about 30mins, maybe because I was configuring Cortana, testing my apps, etc. My phone seems to run even faster now.
    You can check what app draining most of your batteries via "Battery saver". It's Cortana in my case. Btw, i'm on 8.10.12382.878 too. :)
    05-20-2014 12:24 AM
  8. Joaquim Reis's Avatar
    Thats the latest version :) f tou went down from 100 to 83 in 30min, with previous version you would have like 60 percent xD

    Sent from my Lumia 1520 using Tapatalk
    Antony Chan likes this.
    05-20-2014 12:26 AM
  9. Antony Chan's Avatar
    Thats the latest version :) f tou went down from 100 to 83 in 30min, with previous version you would have like 60 percent xD

    Sent from my Lumia 1520 using Tapatalk
    Lolz...that's crazy... Meanwhile i'll have Cortana standby for now. I had it on my Lumia620 though...surprisingly it just won't drain battery as fast as my Fatty phone..
    05-20-2014 12:36 AM
  10. Sudipta ManUtd's Avatar
    so does anyone have an idea about the estimated file size of the 8.1 update?
    05-20-2014 12:41 AM
  11. soothsaier's Avatar
    At first battery seems to drain quickly. Cortana acts as a catalyst in battery draining.
    After prolonged use, battery life has improved and a recent update has aided it.
    WP8.1 is around 800mb.
    The developers preview comes in three updates. The first two being minor ones.
    Make sure your battery is fully charged when you do the update.
    I experienced lag in whatsapp after the update.
    :)
    05-20-2014 01:01 AM
  12. roni09riku's Avatar
    You can check what app draining most of your batteries via "Battery saver". It's Cortana in my case. Btw, i'm on 8.10.12382.878 too. :)
    I checked the usage on battery saver and Cortana is the one that's been using much of my battery too. But the draining seems to have slowed down now, compared to how it was earlier.
    05-20-2014 05:03 AM
  13. Antony Chan's Avatar
    *sigh*...I'm just speechless with my L620. It's been 5hours after full charged, the phone still have 88% battery on it. I played around with Cortana a bit and played Music via Nokia MixRadio for about an hours or more... Guess the fast battery deplete only happen to my L1520 though. Probably i should give her a 2nd chance...will see...
    05-20-2014 05:14 AM
  14. Antony Chan's Avatar
    Something bad happened: I turned on Cortana again on my L1520 when I got home, went to take a nap after i did that.

    When i got up, the phone was so hot that it can almost boil an egg, I unlocked the phone and the Start screen is not showing up. It just showed: "Resuming", nothing work from there. After a while i managed to call up Cortana via the "search" button, and then I realized that the power button is responding too so I went and power down the unit right away.

    The phone still heating up after reboot, I took a backup into the cloud and hard reset it. Started the phone fresh without restore the backup. Cross my finger that it won't happen again.

    Please share if any of you faced the same problem.
    05-20-2014 11:05 AM
  15. Will6371's Avatar
    Something bad happened: I turned on Cortana again on my L1520 when I got home, went to take a nap after i did that.

    When i got up, the phone was so hot that it can almost boil an egg, I unlocked the phone and the Start screen is not showing up. It just showed: "Resuming", nothing work from there. After a while i managed to call up Cortana via the "search" button, and then I realized that the power button is responding too so I went and power down the unit right away.

    The phone still heating up after reboot, I took a backup into the cloud and hard reset it. Started the phone fresh without restore the backup. Cross my finger that it won't happen again.

    Please share if any of you faced the same problem.
    Do or did you have Cortana on a live tile on the start screen? It is causing a lot of problems with other people.
    05-20-2014 12:50 PM
  16. seangprice's Avatar
    The latest update seems to have fixed my draining battery problem, I have most stuff turned on including Cortana as a live tile. I've had zero issues with the 8.1 DV Preview.
    05-20-2014 04:49 PM
  17. Antony Chan's Avatar
    Do or did you have Cortana on a live tile on the start screen? It is causing a lot of problems with other people.
    Hmmmm... I'm not so sure about that. But thing is the phone didn't heat up after hard reset (without restore backup). I left it idled overnight for 6.5hours with Cortana, wifi and location on; the battery went down from 99% to 96%... Hope it won't go crazy again, will update again after a day or two, thanks.

    Update: I'm certain the issue is coming from Cortana Live tile. The heat up issue (Start screen "hung/resume" when unlock) still occurred randomly. For the past few days, the issue didn't show up anymore after I removed Cortana Live tile (still have Cortana running at the background though).
    Last edited by Antony Chan; 05-25-2014 at 10:52 AM.
    05-20-2014 06:45 PM
  18. Aayushvihan's Avatar
    I have lumia 625 with amber on it. I dont know how to get developer version.
    I want to update my phone to 8.1.
    can you help me out ??
    05-22-2014 04:23 PM
  19. Ashish Gupta888's Avatar
    I have lumia 625 with amber on it. I dont know how to get developer version.

    I want to update my phone to 8.1.

    can you help me out ??



    I think you need to first have your phone updated to Black. You can do so, by checking for update in settings. Once updated, you need to download Preview for developers app from store. Register yourself with your windows id. Go to phone settings and then check for updates. It will show you update for 8.1 then. This is not the official release of 8.1 but has everything that MS has to offer with 8.1 release.

    Hope that helps!





    Sent from Lumia 525 using Tapatalk
    05-22-2014 04:56 PM
  20. MDK22's Avatar
    I have lumia 625 with amber on it. ... can you help me out ??
    Is there a reason you're NOT running Lumia BLACK ?

    If you want 8.1 Dev Preview, there are myriad threads on here "How to get Windows Phone 8.1 Developers Preview" & you can now help yourself !

    Start here >> http://forums.windowscentral.com/win...questions.html
    05-22-2014 05:01 PM

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