Front-End

Qorvo QM77031 MB/HB Front-End Module, Skyworks SKY78191-11 LB Front-End Module. Both Front-End modules are not new to us. The Huawei P30 Pro has used the same Qorvo QM77031 and the Skyworks SKY78191-11.

What is exciting, is that we have found HiSilicon’s own Hi6D03 Power Amplifiers in the Mate 20 X (5G). We think it is likely the MB/HB Power Amplifier Module, or only a HB PA module for the 5G-NR bands. The HiSilicon Hi6D03 is the second time we have seen them. In our Huawei Enjoy 9 Plus teardown report, we have already saw the HiSilicon Hi6D03 and the Hi6D13 LB Power Amplifier Module. We think it was Huawei’s plan, to test their own PAs in the low-end and mid-range phones before usage in the flagship phones.

We have also identified a few HiSilicon LNA/RF Switches, Hi6H11 and Hi6H12.

Envelope Tracker

To our surprise, we have found two MediaTek MT6303P Envelope Tracker (ET) ICs, along with the Qorvo RF8129 Envelope Tracker IC. In the previous Huawei phones, such as Mate 20, P20 and P30, Huawei always used the Qorvo RF8129 Envelope Tracker IC. However, this time they have added the MediaTek ET ICs. It is an unusual case considering that MediaTek is in some ways HiSilicon’s competitor. We have not seen any MediaTek devices used in a Huawei phone before unless it is a MediaTek chipset solution phone.