Sony Ericsson that have tx-rx connection

Sony Ericsson that have tx-rx connection:

A2618s, A2618sc, A2628s, A2628sc,
F500, F500i,
J200c, J200i, J300a, J300c, J300i,
K300a, K300c, K300i, K500c, K500i, K506c, K508i, K600, K608i, K700, K700c, K700i,
P800, P802, P900, P908, P910a, P910c, P910i,
R300d, R300LX, R300z, R310s, R310sc, R320s, R320sc, R380e, R380sc, R380s, R380WORLD, R520LX, R520m, R520mc,
S700c, S700i, S710a,
T200, T202, T20e, T20ec, T20s, T20sc, T238, T28s, T28sc, T28z, T28WORLD, T290a, T290c, T290i, T292a, T29s, T29sc, T300, T306, T310, T312, T316, T39m, T39mc, T60c, T60d, T608, T60LX, T610, T61c, T61d, T616, T618, T61LX, T61z, T628, T62u, T630, T637, T65, T68, T68i, T68ie,
V600i, V800,
Z1010, Z500a, Z502a, Z600, Z608, Z800i.

for J200i, J210i, J300i, K300i, K700, K700i, S700, S700i, F500, F500i, K500, K500i, T616, T628, T637, P800, P802, P900, P908, P910, T200, T202, T226, T226s, T230, T238, T290, T292, T300, T302, T306, T310, T312, T316, T20, T28, T29, T36, T39m, T39mc, R520, R520m, R520mc, T65s, T60c, T62u, T68i, T68m, T68mc, T68ie, z1010, T100, T102, T105, T106, T66, T600, R600, R600s, R600sc, A2618, A2628, A3618, Z200, Z300, Z500i, Z600, Z608, Z1010, S700, V600i, V800
Name Direction Description
1 ATMS Audio to mobile
2 AFMS/RTS Audio from mobile/RTS (connected to GND in cable?)
3 CTS/ONREQ CTS/Mobile Station On REQuest (connected to GND in cable?)
4 data in Data to mobile (Rx). (Tx for K300i)
5 data out Data from mobile (Tx). (Rx for K300i)
6 ACC in Accessory control to mobile. Used as Rx in some models (i.e. T68) for flashing.
7 ACC out Accessory control from mobile/handsfree sense. Used as Tx in some models (i.e. T68) for flashing.
8 AGND Audio signal ground + 0V reference
9 flash Flash memory voltage + Service (shorted to pin 11 in service cable)
10 DGND Digital ground
11 Vcc DC + for battery charging + External accessory powering

Pinout by Cruiser team:

Pin Signal Description

CTMS stands for Control To Mobile Station; CFMS stands for Control From Mobile Station; DTMS stands for Data To Mobile Station; DFMS stands for Data From Mobile Station

Standard cable is Sony Ericsson DCU-11


The (Tx)&(Rx) are reverse for K300i model, you must connect CTS & DGND together on board and connect the common wire to CTS(Pin3) in phone connector. If your cable is working fine then dont change it.

Essential toolkit from iFixIt

Love this toolkit. Nice packaging, tools seem quality made and should last more that one disassembly. Nice job iFixIt!

iFixIt tool kit
iFixIt tool kit
iFixIt tool kit
iFixIt tool kit
iFixIt tool kit
iFixIt tool kit

Kit Includes:
Custom iFixit Bit Driver
Angled Precision Tweezers
iFixit Opening Tool
iFixit Opening Picks set of 6
Suction Handle
Easy-to-Open Magnetized Case
Lid with Built-in Sorting Tray
Sixteen 4 mm Precision Screwdriver Bits:
Phillips – 000, 00, 0, 1
Pentalobe – P2, P5
Flathead – 1, 2.5, 4 mm
Torx – T4, T5
Torx Security – TR6, TR8, TR10
Tri-Point – Y000
SIM Eject Bit

Making an adjustable “lab” power supply from scrap

Had an old power supply board lying around that was ripped from dead/old printer. PSU model is CZ57PSE EPSON


To make it work one should connect PSC line to ground.

Schematics of similar power supply:

CZ57PSE schematics
CZ57PSE schematics

To regulate output, made an adjustable voltage regulator using LM2575 that was ripped of some dead router or something similar:


Finished power supply in a box:

Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply

ESP12E dev kit “cant autodetect firmware, because proper answer not received.”

After flashing NodeMCU dev kit to latest build could not connect to it with ESPlorer, error was – “cant autodetect firmware because proper answer not received.”.

It was because baud rate was changed in later firmware, after setting the baud rate to 115200 all was fixed.


Making old webcam to work on Windows 10

Was investigating some old Fujitsu Siemens Webcam for some project, but it did not work on Windows 10 – windows did not recognize and did not have any drivers for it.

Hardware ID in device manager shows:


Searching by vendor and PID did not help.

On PCB of the webcam, I found that it is SN9C120 + S0I766

Finally searching by SN9C120 that this may be same as HP Basic Starter Camera. That led me to this Microsoft Update page where finally I have found working* driver. This driver installed on Windows 10 without problems, but Camera app was still not working.

On the internet found some general app written on .NET 3.5 for camera capture and finally that was working fine.

If windows update site is not available, you can find the driver here.

*UPDATE good app to test web cam –