U.S. Huawei Mate 10 Pro will have a single SIM and support VoLTE on T-Mobile

We exclusively reported on the existence of an AT&T variant of the Huawei Mate 10 Pro a few months back, and the smartphone was all but confirmed to launch in the U.S. as Huawei was ramping up a marketing campaign. At the last moment, however, AT&T backed out of the deal to sell the Mate 10 Pro via its carrier stores, which blind-sided everybody. Huawei continued with its plans to launch the Mate 10 Pro as an $800 unlocked smartphone for the U.S. market, and while we know most of the devices’ specifications, there was some confusion about its connectivity.

Now, XDA Senior Member duraaraa has confirmed that the U.S. Mate 10 Pro and Porsche Design Mate 10 Pro will only have a single SIM. He has also confirmed that the U.S. models will support VoLTE on T-Mobile, but not VoWifi; however, both devices will support VoLTE and VoWifi on AT&T. Given the model number of BLA-A09, which matches the unreleased firmware for the AT&T Huawei Mate 10 Pro, duraaraa suggests that these two devices are repurposed AT&T models. We don’t have any corroborating evidence for that, but it would make sense given that likely tens of thousands of these devices were already produced.

In comparison, the international Mate 10 Pro has dual SIM slots. Thus, it’s possible to purchase an international Huawei Mate 10 Pro and then rebrand it to the U.S. firmware, which would allow you to retain the dual SIM functionality while enjoying the same T-Mobile/AT&T connectivity. Instructions on how to do that are available here.

How credible is this information? XDA Senior Member duraaraa is the man behind the FunkyHuawei.com service, which allows users to update, unbrick, or rebrand Huawei and Honor phones for a fee. With assistance from him, XDA has leaked information on the aforementioned AT&T Huawei Mate 10’s existence, specifications of the Honor V10, and the potential design of the upcoming Huawei P11/P20. Given his track record, we’re inclined to believe this information, though keep in mind that this information is based off of firmware files and not the actual hardware.

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