u8plus smart watch quick teardown and uart
With the battery and the speaker pulled back we can see a MediaTek MT6261 SoC and supporting components on the left. On the right are connections for the reset button (mounted on top of the usb connector), speaker and what I assume is a vibrator motor connected to ‘VIB’. The touchscreen is also connected at the top, with it’s controller mounted on the flat flex cable. The home/power button is tucked in on the far left. u8plus smart watch quick teardown and uart 9 Jan 2016
The ‘D+’ and ‘D-‘ and the proximity to the USB suggest the four pads on the left are for the USB; VBAT is positive side of the battery; PWR connects to the power/home button. Just slightly covered by the green label is RXD and TXD – which is likely our UART, and two others (‘OW2’ and ‘OL0’). Above them next to PWR are five unlabelled pads – hopefully these are JTAG.
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