Psp Go Jigkick

How to enter Manufacturing Mode on Psp Go (Partial)

• Pins 20, 21 and 24 connected together. 14 is tx (from psp to host) and 17 is rx (from host to psp)
• Feed 5V to pin 22 (But it will work on battery power without it just fine)

Explanation

• Pin 20 Makes it think it's on cradle with 5v psp adapter conected
• Pin 21 Makes it detect a cable is on
• Pin 24 tied to the other 2 enables serial

Full MultiCn pinout

01- GND
02- ACCESSORY_USB_SUPPLY_3V3
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 
15- CABLE_TYPE_SENSE_2
16- Y / S-VIDEO_Y
17- Backlight IC ball D4
18- Backlight IC ball B2
19- Cb / S-VIDEO_C
20- DET_5V_CRADLE (yellow jack)
21- DET_USB_CABLE_CONNECTED
22- 5V_INPUT
23- Backlight IC ball A6
24- SYSCON_T0H0
25- GND
26- USB_D+
27- USB_D-
28- GND