With the motherboard plucked from the the rear case, we take a second to explore the MX6's silicon situation. Highlights include:

Micron MT52L512M64D4GN-107 WT:B 32 Gb (4 GB) Mobile LPDDR3 SDRAM with MediaTek Helio X20 SoC layered underneath

MediaTek MT6631N Wi-Fi module

Texas Instruments BQ25892 fast charging IC

NXP TFA9911 audio amplifier

MediaTek MT6351V PMIC

Skyworks SKY77673-11 power amplifier module (likely)

MediaTek MT6300P (possibly an iteration of the MT6302 dual SIM card controller)