Blink SyncModule 2

What is it?

Home appliance to control other Amazon Blink devices.

According to the manufacturer: "The Sync Module is a hub that plugs into an electrical outlet to relay commands and network details to devices in the system it manages. The Sync Module 2 requires a power outlet and is connected to your always-on Wi-Fi network to handle activity for up to ten Blink devices. This extends camera battery life, saves clips without a subscription, improves convenience for scheduling, and arms a group of devices at once."

What can it do?

• Control Blink devices (cameras, doorbells, etc) from the Blink mobile app
• Connect up to 10 of any Blink Outdoor 4, Wired Floodlight, Outdoor and Indoor (all models), XT2, XT, Video Doorbell*, and Mini* cameras.
• Support local video storage for up to 10 Blink cameras.
• Record and store motion clips when you insert a USB flash drive (up to 256 GB).

Main components

Microcontroller

NXP MCIMX6Z0DVM09AB

• ARM Cortex-A7 running Linux
• 900MHz
• SRAM: 128kB
• SPI/UART/I2C
• 96KB bootrom, 128KB internal RAM
• Has Arm TrustZone

Wifi/Bluetooth Module

NXP 88W8987-NYE2

• 2.4/5Ghz Wifi
• Bluetooth 5.2 (BLE also)

Serial flash

Winbond 25Q256JVEQ

• 256M-bit
• Dual/Quad SPI XIP (133MHz SPI)

RAM

ISSI IS43TR16640BL

• 1GB SDRAM
• 16bit DDR3

Unknown IC

Markings: 455A CQRX 220 Unknown purpose. Maybe custom radio.

Teardown pictures

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  Front face of the BSM2
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  Back face of the BSM2
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  Top view
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  To take off the top part just use a spudger, guitar pic, etc. No glue or screws to take the top cover off.
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  PCB view (top)
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  PCB view (top) closeup
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  PCB view (bottom)
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  Serial Flash closeup
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  MCU closeup
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  SRAM closeup
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  Unknown IC closeup
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  Wifi/BT module closeup
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Serial Communications

It is possible to read the boot of the device by connecting to the indicated pin.

Baud rate is 115200.