Psp Go Jigkick

• Original info kindly provided by l_oliveira

How to Enter Service Mode (officially known as Manufacturing Mode) on PSP Go

Connecting a PSP Go multi-use connector plug to a TTL serial adapter:

• Pin 24 connected to any ground (see pin-out below for ground pins)
• Pins 14 and 17 connected together for k-line communication with your favorite 1.8v level serial adapter
• Serial adapter must have a 1n4148 diode with line (cathode) toward it's TX, other end (anode) tied to RX, and RX going to Go pins 14+17
• Ground connected between Go and serial adapter
• (optional) Pin 20 with 10K resistor to 5v power source and pin 22 directly connected to 5v power source

Plug in your serial adapter to PC and set up [PySweeper] with the correct COM port for your adapter and the option for service mode selected. Plug in modified multi-use connector to PSP Go while fully powered off (NOT in sleep mode), SYSCON will begin serial communication with your serial adapter and enter service mode.

Explanation of Pins used for Service Mode

• Pin 14 is PSP Go TX
• Pin 17 is PSP Go RX
• Pin 24 is SYSCON TOH0, enables serial communication when grounded
• Pin 20 is Cradle Power Detect, enables charging/power from pin 22
• Pin 22 is 5v in

Full Multi-use Connector Pin-out

01- GND
02- ACCESSORY_USB_SUPPLY_3V3 (Used on N440 Converter Cable Adapter to power USB accessories)
03- EXTERNAL_MIC_IN
04- POMMEL BALL M1 (?)
05- AUD_L
06- Backlight IC ball C1 (ext mic en?)
07- GND
08- AUD_R
09- GND
10- ENABLE_AUDIO_MULTIOUT
11- GND
12- GND
13- Pr / COMPOSITE_VIDEO
14- CABLE_TYPE_SENSE_1 (Used in jigkick as TX)
15- CABLE_TYPE_SENSE_2
16- Y / S-VIDEO_Y
17- Backlight IC ball D4 (Used in jigkick as RX)
18- Backlight IC ball B2
19- Cb / S-VIDEO_C
20- DET_5V_CRADLE (Apply +5v through 10kOhm resistor to enable pin 22)
21- DET_USB_CABLE_CONNECTED
22- 5V_INPUT (Apply +5v when enabled to charge battery or power board if no battery)
23- Backlight IC ball A6
24- SYSCON_TOH0 (Ground while powered off to enable jigkick)
25- GND
26- USB_D+
27- USB_D-
28- GND

Picture of Setup

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• For pin numbering on cradle multi-use connector plug with text upside down:

1  4  7  ...
gap in pins here
  3  6  9  ...
 2  5  8  ...

Alternative Points

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