u/Ecstatic-Knowledge49

▲ 2 r/PCB

Please help to locate UART check points on Sony XperiaXZ motherboard.

I am trying to flash PostmarketOS on my old SperiaXZ, to use it as headless mini server. I tried to generate custom image in collaboration with AI, but attempts fail. The kernel looks to crush before USB is activated to show me the logs. Looks like the last resort is to try to read the logs from serial port on motherboard. I found pictures of motherboard, though not excellent resolution. Probably somebody had such an experience to work with serial on this device? Appreciate you help to locate TX, RX and GND control points on attached pictures.

https://preview.redd.it/lslrytklfb3h1.jpg?width=1000&format=pjpg&auto=webp&s=49f12456c5efd88e994b454fa431cadd4edc3812

https://preview.redd.it/1eczg5imfb3h1.jpg?width=1000&format=pjpg&auto=webp&s=223be5b19fa3e3931743d373071e2f0ff5ca9de4

reddit.com
u/Ecstatic-Knowledge49 — 14 days ago

Please help to locate UART check points on Sony XperiaXZ motherboard.

I am trying to flash PostmarketOS on my old SperiaXZ, to use it as headless mini server. I tried to generate custom image in collaboration with AI, but attempts fail. The kernel looks to crush before USB is activated to show me the logs. Looks like the last resort is to try to read the logs from serial port on motherboard. I found pictures of motherboard, though not excellent resolution. Probably somebody had such an experience to work with serial on this device? Appreciate you help to locate TX, RX and GND control points on attached pictures.

https://preview.redd.it/lslrytklfb3h1.jpg?width=1000&format=pjpg&auto=webp&s=49f12456c5efd88e994b454fa431cadd4edc3812

https://preview.redd.it/1eczg5imfb3h1.jpg?width=1000&format=pjpg&auto=webp&s=223be5b19fa3e3931743d373071e2f0ff5ca9de4

reddit.com
u/Ecstatic-Knowledge49 — 15 days ago
▲ 2 r/R36S+1 crossposts

Please help to locate UART check points on Sony XperiaXZ motherboard.

I am trying to flash PostmarketOS on my old SperiaXZ, to use it as headless mini server. I tried to generate custom image in collaboration with AI, but attempts fail. The kernel looks to crush before USB is activated to show me the logs. Looks like the last resort is to try to read the logs from serial port on motherboard. I found pictures of motherboard, though not excellent resolution. Probably somebody had such an experience to work with serial on this device? Appreciate you help to locate TX, RX and GND control points on attached pictures.

https://preview.redd.it/q2c8ncxl293h1.jpg?width=1000&format=pjpg&auto=webp&s=b98e38217fa78a2dc45a54b5d62224d69c880455

https://preview.redd.it/0n4kji9n293h1.jpg?width=1000&format=pjpg&auto=webp&s=718c9db9734994eb83c6d2d2d930023da04dcb7d

reddit.com
u/Ecstatic-Knowledge49 — 16 days ago