Hi:
In fact I bought it and returned it in one day as it did not have the WIFI calling feature. So, I may not be able to help you in that way.
Thanks
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Hey,
we have started rolling out a new software update for Lumia 640 & Lumia 640 XL. You can find the update instructions & update availability details from here: http://www.microsoft.com/en/mobile/support/software-update/wp8-software-update/
Latest software release for Nokia Lumia 640 is Lumia Denim (02177.00000.15184.36xxx/8.10.15148.160):
Latest software release for Nokia Lumia 640 XL is Lumia Denim (02177.00000.15184.36xxx/8.10.15148.160):
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Hi:
In fact I bought it and returned it in one day as it did not have the WIFI calling feature. So, I may not be able to help you in that way.
Thanks
Hi:
Also I talked to the Tech. Rep. @ Expansys ( who happens to be a ex. T-Mobile employee ) and he said phones sold by Expansys wont support WIFI as they are non branded and only if T-Mobile sell Dual SIM then we can expect WIFI.
when can we expect a new software update?
Full Info:
Modell: Microsoft Lumia 640 Dual SIM
Software: Windows@ Phone 8.1 Update 2
Betriebssystemversion: 8.10.15127.138
Firmwarerevisionsnummer: 02166.00000.15103.05001
Hardwarerevisionsnummer: 2.1.2.0
Funksoftwareversion: 200.00072.0001
RM-1067 / LUMIA 640 XL DS. I want to update version with LTE mode. Is that possible? Then I salve my net work problem. I want to use JIO sim whith my handset.
Thanks.