DRAWBACKS OF LUMIA MODELS

• The Devices Available in the Market are Still Using Dual Core Processors Where as Quad Core, Octa Core Processors are Available in the Market.
• The Higher End Devices are only having of 1 GB Ram and 2 GB version Android Devices are Available in the Market.
• The Main Disadvantage is App Catalogue it fails to competite with Android and iOS. 
• The Most Games(Temple Run and Many More ) Requires of 1 GB Ram but 1GB Ram is available for only Higher End Devices and the lower End Devices has only 512Mb Ram Support.
• Windows Mainly fails in App Transformation from Android and iOS.
• The Device Supports limited Video Codec and only Plays video files like .3gp, .avi and .mp4 and cannot play any other formats like .mkv and many more.
• The User Interface is another major problem it has only one Interface with live Tiles at the Starting of using this device the Interface is ok but Continuous Use of the same interface may get bored to the User.
• The NFC and Bluetooth is not yet perfect for the Sharing of our Content you can share Photos/Images by Blue tooth but you cannot share Videos.
• One of the Major Problem is There is no System Wide File Manager. We donot have any App also for this, For Access of Files in your Mobile you have to connect it to the System.
• The Other Major thing we have to Consider is Video Player there is no Single Video Player App in the Windows Phone Market. We have to play/Access Video Files in the Music+Videos in your Device. Folder View of Videos is also Not possible and All the Video Files are given as list and you may not Delete All the Videos at a Time and have to select each one by one and Delete them.
• Flash Player: No Flash Player Support in the Browser and by this The Device cannot Display the Flash Content in the Webpage.
• Security Problem: I Think Windows Devices are not that secure because I Did not found a Single Antivirus App in the Market.
• The Devices are little Expensive when compared with the Other Operating System Devices.