Try to hard reset the phone... most people reports better performance after the hard reset. Before of that, backup all your stuff.
I have just ordered this phone on ebay. Expecting it on 16th May. I just want someone who has extensively used both 8.1 and 10 as to what is the effect on battery life after upgrade to Win 10? My top priority is calls apart from emails and whatsup usage.
In April I was upgrade windows 10 on my Lumia640LTE and situation is not good. Performance is terrible, keyboard sometimes not working, internet also, camera sometimes crushed and when I take a picture, saving are too long, almost 2 min.. Too low cpu and ram for windows 10, this is problem on lumia 550 and 650, prove.
Shaun Roselt, 30 Apr 2016Definitely get the Lumia 640. It is a far better choice.Core prime if you want lots of apps and lumia 640 for camera and screen. We have both in house, my mom uses the 640 and i use the core prime
Thanks Already download for months always says we are working with your provider.
pocoboy, 05 May 2016When will Lumia 640 ATandT will get Windows 10 Upgrade? I am using it o Speakout ( 7 -eleven i... moredownload the upgrade advisor. it should guide you on windows 10 mobile installation
When will Lumia 640 ATandT will get Windows 10 Upgrade? I am using it o Speakout ( 7 -eleven in Canada)? Any Idea.
hemant, 04 May 2016i am not getting this please help me, when type code it shows wrong..##3828# WAS a typo (because of computer keyboard), ##3282# is the right one :)
Hi, which should one choose between huawei p8 lite vs Lumia 640 lte? Sure neither are like my trusty Lumia 925
Anonymous, 28 Apr 2016Help tech gurus , samsung core prime or this 640 and why??? i cant decide Definitely get the Lumia 640. It is a far better choice.
Savor, 18 Apr 2016A phone that only cost me $29.99 has surpassed expectations I would reserve for a $700 flagsh... moreI had the 920 supplied by work and now the 640 LTE as personal phone as left employer. Very happy.
After upgrading to W10, didn't like the changes to tiles. No web page icons and no way to pin individual Office documents. So reverted to 8.1 So think twice before upgrading Windows.
Battery lasting 2 to 3 days with battery saver on but keeping bright display.
Highly recommended as good value for money.
Anonymous, 28 Apr 2016Help tech gurus , samsung core prime or this 640 and why??? i cant decide http://www.gsmarena.com/compare.php3?idPhone1=7055&idPhone2=6716 ....... Compare It Ur Self......... Core Prime is average And Lumia 640 Best Budget Phone Only If U Want To Go Windows Phone.......... Ebay is Giving LTE Version @6k.
Help tech gurus , samsung core prime or this 640 and why??? i cant decide