03-16-2016 11:02 PM
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  1. jlangner's Avatar
    Just upgraded my wife's phone to 640. Have a problem in that every time I reboot the phone it boots up normally and when start screen shows, works for 5-10 seconds then everything freezes, eventually reboots, repeat.. Only way out is to hard reset and restore her back up. Once I do that it works great... until it is rebooted. Any suggestions or should I just return and get a new one. Seems 640 is online only for T-Mobile at least in my area which is a pain.
    08-15-2015 08:22 AM
  2. Robinsonmac's Avatar
    A hard reset is in your future....
    jlangner likes this.
    08-15-2015 09:02 AM
  3. juanitoriv's Avatar
    Just upgraded my wife's phone to 640. Have a problem in that every time I reboot the phone it boots up normally and when start screen shows, works for 5-10 seconds then everything freezes, eventually reboots, repeat.. Only way out is to hard reset and restore her back up. Once I do that it works great... until it is rebooted. Any suggestions or should I just return and get a new one. Seems 640 is online only for T-Mobile at least in my area which is a pain.
    Is the 640 on WP8.1 or did you set up W10M? If it's 8.1, you've probably gotten a bad device. Also, did you do a Restore from a previous WP at initial setup? There have been similar issues with that and the Insider Preview.
    jlangner likes this.
    08-15-2015 09:08 AM
  4. hb1x's Avatar
    Update your phone.
    I think you'd get 2-3 pending updates for your phone.
    jlangner likes this.
    08-15-2015 09:14 AM
  5. rhapdog's Avatar
    Have you tried looking for the T-Mobile version of the 640 at Walmart? They do carry it.
    libra89, Laura Knotek and jlangner like this.
    08-15-2015 09:15 AM
  6. Myclevername's Avatar
    I bought an ATT one at the Microsoft Store and by using the ATT website tool I had it unlocked within 24 hour. Works great on T-Mobile now. But I'm in South Florida and there is LTE everywhere.
    jlangner likes this.
    08-15-2015 09:22 AM
  7. libra89's Avatar
    Have you tried looking for the T-Mobile version of the 640 at Walmart? They do carry it.
    I just wanted to second rhapdog's comment to say that I bought my T-mobile version from Walmart, along with various others on the forum here.
    Laura Knotek likes this.
    08-15-2015 10:10 AM
  8. jlangner's Avatar
    A hard reset is in your future....
    Guess will return then. I have already hard reset 4 times in 4 days.
    08-15-2015 10:54 PM
  9. jlangner's Avatar
    Update your phone.
    I think you'd get 2-3 pending updates for your phone.
    There are no updates available
    08-15-2015 10:55 PM
  10. jlangner's Avatar
    Is the 640 on WP8.1 or did you set up W10M? If it's 8.1, you've probably gotten a bad device. Also, did you do a Restore from a previous WP at initial setup? There have been similar issues with that and the Insider Preview.
    It is still on 8.1 and yes did a restore from lumia 635.
    08-15-2015 10:55 PM
  11. juanitoriv's Avatar
    It is still on 8.1 and yes did a restore from lumia 635.
    I ask because I had similar issues on my L630, but I was grabbing slow ring for W10M. I then reset and did a fresh new install when I bumped up to fast ring.

    Have you tried the Windows Phone Recovery Tool? It's somewhat possible that the factory image is somehow corrupted. The tool will download the ROM and flash it to her 640. After flashing it will be like new, but then one last reset to load her backup.

    That's about all I can think of to save you from a trip to Wally World. Damn I hate that place!!
    jlangner and BSobotta like this.
    08-16-2015 09:51 AM
  12. taymur's Avatar
    The case you are describing does not seem normal for sure....

    use the recovery tool from Microsoft.

    if it does not work, just return the phone, obviously something is not right.
    libra89 and jlangner like this.
    08-17-2015 06:26 AM
  13. jlangner's Avatar
    Thanks for all of the suggestions. I went ahead and had them mail me a new one. Tried recovery tool as well. MMS wasn't working as well so something screwy was going on somewhere.
    08-17-2015 04:17 PM
  14. solarscreen's Avatar
    Whenever MMS is not working, there is an issue with the Internet and MMS APN settings on your phone. For TMobile, go here to see how to set it manually on the Lumia 640.

    https://support.t-mobile.com/docs/DOC-21329
    Laura Knotek and libra89 like this.
    08-18-2015 08:32 AM
  15. jlangner's Avatar
    Got a replacement 640 prepaid from Walmart. It locks up as well when I restore using backup.... could it be an app? wth could it be. Using brand new sim and SD card
    08-19-2015 09:06 PM
  16. jdballard's Avatar
    Got a replacement 640 prepaid from Walmart. It locks up as well when I restore using backup.... could it be an app? wth could it be. Using brand new sim and SD card
    I've never been able to restore a backup from between models of phones. When I tried to restore the backup of my 925 to my HTC One M8, it repeatedly failed. Had to reset the One M8, though, did a backup and that restored just fine to the M8. When I got the 640, tried to restore a backup from the M8 and it failed. After resetting the 640 from a W10M preview, the backup of the 640 restored fine. Same model, restores fine. Different model, doesn't restore. Maybe others have been luckier than I have...
    Guytronic likes this.
    08-20-2015 01:58 PM
  17. zhris's Avatar
    Try a hard reset, but set it up as a new phone (don't restore it). Then, you can re-download apps one at a time until you either find your culprit or resolve the issue.
    jlangner likes this.
    08-20-2015 05:18 PM
  18. jlangner's Avatar
    Try a hard reset, but set it up as a new phone (don't restore it). Then, you can re-download apps one at a time until you either find your culprit or resolve the issue.
    I give up, both phones lock up on reboot setting up as new phone. Only thing I did was log into my wife's account.
    08-20-2015 10:01 PM
  19. jlangner's Avatar
    I guess only solution for now is to never turn off :(

    I still have issue of MMS. I added the values from link above and still says can not send as soon as try and if I send a pic to her it says image attached and when click on it, says opps, image gone. Any other ideas?

    Damn it, I wish Daniel still lived here...I'd pay a visit. hehe
    08-21-2015 09:32 AM
  20. gordonfink's Avatar
    Are you using it as a go-phone, or is it active on a regular att account? If the latter, call them to give them the imei, because mms and data sometimes won't work if they don't have the correct imei on your account.

    If the former, I'm out of ideas.
    libra89 and jlangner like this.
    08-21-2015 09:48 AM
  21. jlangner's Avatar
    Ok, this is f&*(ing ridiculous. Just got third phone and same damn thing. I tried new sim, didn't sign in to any account and still.... what gives?
    08-27-2015 08:09 PM
  22. jaimeastin's Avatar
    Ok, this is f&*(ing ridiculous. Just got third phone and same damn thing. I tried new sim, didn't sign in to any account and still.... what gives?
    Maybe sd card... I have always restored from backup, across all my windows phones. With rh SD card, things get slow on start up and all... What speed card are you using? Is it the same care from the previous phone? Did you format the card? You can format it from the phone.

    I have had a 900, 920, 1520, 635, and now using a 640. The last 3 all allows foe SD card use, and while great there are issues... The phone sometimes needs to scan the card and fox errors or just load up all your apps on start up...

    On the 635 with windows 10, I finally got it to go into reboot limbo, but I was doing things waaaaay out of order almost to break it. The recovery tool fixed that right up on 8.1.

    I would love to help where I can...
    libra89 likes this.
    08-27-2015 08:36 PM
  23. mewcatchew's Avatar
    Flash the T-Mobile rom onto the phone since its an AT&T phone running AT&T software and you using it with T-Mobile sim. You can be sure you didn't get 3 defective phones. You will gain wifi calling (have the option), and your 640 will work. All other Tmobile bloatware you can uninstall. You will have a Tmobile splash screen when you boot up instead of AT&T.

    OR, flash it to RM-1073 VAR LTA 7R CV (unbranded) . product code: 059X153
    Last edited by mewcatchew; 08-27-2015 at 08:58 PM.
    08-27-2015 08:47 PM
  24. jlangner's Avatar
    I am sorry... it was a prepaid T-Mobile not at&t go. All 3 have been T-Mobile. One that came today is straight from T-Mobile website. Can't reboot and can't send mms. I used repair tool, etc. All MS says is send to us. My wife will not go 10 days with out a phone. Probably have to get damn android. All out of options. I even tried new sim, not logging in to any account so no ideas wtf to do.
    08-27-2015 09:02 PM
  25. mewcatchew's Avatar
    OR, flash it to RM-1073 VAR LTA 7R CV (unbranded) . product code: 059X153
    08-27-2015 09:11 PM
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