02-03-2016 05:31 PM
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  1. simonnyc's Avatar
    My dad recently dropped his 640 and shattered the screen. Before i go on ebay and order a replacement screen from China, is it possible for me to just buy a AT&T version of the 640 and use that screen as a replacement?

    If not, does anybody have any suggestions on where to order a replacement screen from? Should I be ordering a replacement screen that has the frame?
    12-22-2015 11:22 AM
  2. boltman2013's Avatar
    My dad recently dropped his 640 and shattered the screen. Before i go on ebay and order a replacement screen from China, is it possible for me to just buy a AT&T version of the 640 and use that screen as a replacement?

    If not, does anybody have any suggestions on where to order a replacement screen from? Should I be ordering a replacement screen that has the frame?
    Just buy a new 640 they are cheap
    12-22-2015 12:42 PM
  3. simonnyc's Avatar
    Just buy a new 640 they are cheap
    i would but nobody is selling the T-mo 640s anymore. I need the tmo version for wifi calling.
    12-22-2015 12:47 PM
  4. ntice_521's Avatar
    My dad recently dropped his 640 and shattered the screen. Before i go on ebay and order a replacement screen from China, is it possible for me to just buy a AT&T version of the 640 and use that screen as a replacement?

    If not, does anybody have any suggestions on where to order a replacement screen from? Should I be ordering a replacement screen that has the frame?
    As far as I know all 640 screens are the same. In fact the att and tmbile 640s have the same hardware model number (RM-1073).

    I haven't fixed a 640, but if its like others...yes, get the glass with frame. Because otherwise you have to unglue/reglue, pain in the butt.
    xandros9 likes this.
    12-22-2015 09:40 PM
  5. gordonfink's Avatar
    I believe they should be interchangeable. Pretty easy replacement. I bought a LCD/screen assembly, but it did not have the frame. If you buy one with a frame, it'll be much easier for you.
    xandros9 likes this.
    12-22-2015 10:26 PM
  6. sleeve22's Avatar
    You could always just buy the same RM model and then just flash the T-Mo Rom. Super easy to do these days.
    12-22-2015 10:29 PM
  7. boonesmi's Avatar
    oops, ignore that post :)
    12-23-2015 01:17 AM
  8. njstol01's Avatar
    On a slightly related topic, is it possible to turn off the ATT splash screen that comes up briefly on start up? (I'm running a unlocked ATT640 on tmo)
    12-23-2015 07:43 AM
  9. njstol01's Avatar
    On a slightly related topic, is it possible to turn off the ATT splash screen that comes up briefly on start up? (I'm running a unlocked ATT640 on tmo)
    12-23-2015 07:48 AM
  10. libra89's Avatar
    On a slightly related topic, is it possible to turn off the ATT splash screen that comes up briefly on start up? (I'm running a unlocked ATT640 on tmo)
    As far I know, you can't unless you are able to flash another kind of firmware.
    12-23-2015 09:04 AM
  11. sleeve22's Avatar
    oops, ignore that post :)
    What are you implying?
    12-23-2015 12:37 PM
  12. sleeve22's Avatar
    Also, did you try Metro PCS to see if they have any available?
    12-23-2015 01:53 PM
  13. aybarrap1's Avatar
    What are you implying?



    I think he/she is referencing the fact that if you buy the AT&T branded L640, you cannot flash another ROM. This is because AT&T has locked the phone to prevent this. SOP for AT&T.
    libra89 likes this.
    12-23-2015 01:56 PM
  14. sleeve22's Avatar
    I think he/she is referencing the fact that if you buy the AT&T branded L640, you cannot flash another ROM. This is because AT&T has locked the phone to prevent this. SOP for AT&T.
    Yes, this has been the case since forever. That is why I specifically said the same RM version, and did not mention AT&T version. You can easily find an LTA version with a simple google search. Sometimes I wonder if it is only ******* idiots who remain at these forums. It would be much more cost effective to buy an LTA 640 and flash it than buy a replacement screen. Or even buy the Metro PCS version.
    12-23-2015 02:20 PM
  15. sleeve22's Avatar
    And plus we now have the tools available to unlock the AT&T version so that they can be flashed with other firmware. So, your point is moot.
    12-23-2015 02:41 PM
  16. gordonfink's Avatar
    It would be much more cost effective to buy an LTA 640 and flash it than buy a replacement screen. Or even buy the Metro PCS version.
    I'm not entirely sure that this is true. It depends on how cheaply you can buy a screen. I've seen them as cheap as $20. In that case, it's easier to buy the screen and replace it.
    12-23-2015 04:05 PM
  17. boonesmi's Avatar
    What are you implying?
    hah sorry for the confusion.

    i had started a response much earlier (before anyone had replied) that basically said both att and tmo 640 are rm-1073 which means the only difference between them is firmware/software (ie. yes you could use one for replacement parts)

    but i was distracted, and many hours later i was back at PC and saw i hadn't actually posted it. once i hit "submit" it refreshed page and i saw that others had already responded (and it appeared i was just duplicating what others had said) so i deleted and said to ignore, lol
    12-23-2015 04:19 PM
  18. boonesmi's Avatar
    And plus we now have the tools available to unlock the AT&T version so that they can be flashed with other firmware. So, your point is moot.
    since when? i was under the impression no one had yet found a way to unlock firmware on the ATT 640
    12-23-2015 04:22 PM
  19. sleeve22's Avatar
    I'm not entirely sure that this is true. It depends on how cheaply you can buy a screen. I've seen them as cheap as $20. In that case, it's easier to buy the screen and replace it.
    I just sold my T-Mobile 640 for $30. That is about the current going rate.
    12-23-2015 04:25 PM
  20. sleeve22's Avatar
    since when? i was under the impression no one had yet found a way to unlock firmware on the ATT 640
    This has been done. In fact, I have flashed an AT&T 920, 820, and 640 already to CV firmware although they require extra steps. If you follow along with Windows Central you should be aware of this by now. But yes, it is an additional challenge with AT&T phones. My local Metro PCS was still selling 640s the last time I was they (maybe 2 weeks ago) and those are super easy to flash.
    12-23-2015 04:29 PM
  21. boonesmi's Avatar
    This has been done. In fact, I have flashed an AT&T 920, 820, and 640 already to CV firmware although they require extra steps. If you follow along with Windows Central you should be aware of this by now. But yes, it is an additional challenge with AT&T phones. My local Metro PCS was still selling 640s the last time I was they (maybe 2 weeks ago) and those are super easy to flash.
    i do follow windows central, and since the flood of AT&T 640's after bestbuy's $29 BF and microsoft store selling at $39. there have been countless posts on here and all over the web of people wanting to turn it into a tmobile version. all ive seen/heard is that its not possible yet.

    edit to add: im talking specifically about the AT&T version. i know other version can load different software
    12-23-2015 04:34 PM
  22. sleeve22's Avatar
    i do follow windows central, and since the flood of AT&T 640's after bestbuy's $29 BF and microsoft store selling at $39. there have been countless posts on here and all over the web of people wanting to turn it into a tmobile version. all ive seen/heard is that its not possible yet.
    Thanks for the info. I will grab another from BB if they are that cheap.
    12-23-2015 04:36 PM
  23. gordonfink's Avatar
    I knew tools were out to potentially crack it, but I was not aware that it had been done. Can someone provide a link? I might do it just for kicks.
    12-23-2015 04:40 PM
  24. charktorious's Avatar
    On a slightly related topic, is it possible to turn off the ATT splash screen that comes up briefly on start up? (I'm running a unlocked ATT640 on tmo)
    There is a way, but it requires installing CustomWPSystem_0500 or CustomWPSystem_0600.xap, running it off the Developer app to gain access to the registry and editing this location: KLM\SYSTEM\Shell\OEM\BootScreens\WPBootScreenOverride (obviously you need to know what you're doing / don't mind messing with your phone)
    12-23-2015 10:53 PM
  25. aybarrap1's Avatar
    This has been done. In fact, I have flashed an AT&T 920, 820, and 640 already to CV firmware although they require extra steps. If you follow along with Windows Central you should be aware of this by now. But yes, it is an additional challenge with AT&T phones. My local Metro PCS was still selling 640s the last time I was they (maybe 2 weeks ago) and those are super easy to flash.

    Do you mind linking the thread(s) explaining how to flash new firmware on the AT&T L640 variant. I have not found the method to do so despite numerous search efforts and lots of reading.
    12-23-2015 11:25 PM
53 123

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