[WP7609] How to customize the firmware for modified HW

[jyijyi]

you can run the windows one click tool exe to upgrade to R13.3

For VoLTE, please see :

WP7609 VoLTE supported SKUs

@leond, So generically speaking all of the current WP76 SKU’s now do support VoLTE, 18 months ago this was not the case and we have updated them over time. Regards Matt