1. Mahesh MK's Avatar
    I read somewhere about a software upgrade that allows devices to be 4g compatible. How can this be done? Bought the device in May 2015. TIA
    09-15-2015 07:55 AM
  2. JithinPrasad's Avatar
    Its not available for 640xl.

    640XL LTE is a different device. Which will launch in india by mid November
    Mahesh MK likes this.
    09-15-2015 08:05 AM
  3. RumoredNow's Avatar
    This thread has been moved to an appropriate forum...

    As per this advice: http://forums.windowscentral.com/ask...ion-forum.html WC members are free to post in all areas of the board. Please use Ask a Question only for time critical help issues that affect the immediate functionality of your device.
    09-15-2015 11:54 AM
  4. Mahesh MK's Avatar
    Does this mean my device will be never compatible for 4g?
    Its not available for 640xl.

    640XL LTE is a different device. Which will launch in india by mid November
    09-16-2015 01:33 AM
  5. Daniel Gilbert M's Avatar
    Does this mean my device will be never compatible for 4g?
    Yes the 640XL now you have in hand is a 3G device. It will be never compatible for 4G.
    However the new 640XL LTE which is going to be launched will be compatible.
    Mahesh MK likes this.
    09-16-2015 03:44 AM
  6. Mahesh MK's Avatar
    Is upgrade of ram possible for my 640xl? Currently at 512mb 😞
    11-29-2015 01:00 AM
  7. broar94's Avatar
    640XL has 1Gb of RAM, there's no possibility of upgrading RAM or any hardware(other than sd card) of any mobile.
    11-29-2015 03:23 AM

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