Samsung SCH-X430



The Samsung SCH-X430 is a high-end flip phone released by Samsung specifically for SK Telecom in 2002. It is one of the early Samsung phones with a colour screen, boasting an active-matrix TFT display with a resolution of 128x160.

The SCH-X430 is commonly seen in silver or white, although the plastic casing of the white model is prone to yellowing due to age and the type of plastic used.

Being a high-end phone in 2002, it boasted a heavy feature set for the era, which included a TFT colour screen, 40-note polyphonic ringtones, mobile wallet, roaming mode, and much more.

Variants

 * SPH-X4200/SPH-X4209: A similar model with different software branding, operating bands, and audio capabilities (SCH-X430 has a 40-poly melody, while the SPH-X4200/4209 has 16-poly.)
 * SCH-X430S: A slightly improved model with better LCD quality and some changed ringtones, released in 2004.

Related phones

 * Samsung SCH-X420: Predecessor to this model, with a monochrome screen and 16-poly melody.
 * Samsung SCH-A562: A rebranded SCH-X430 for Pelephone Israel.
 * Samsung SGH-T100: International GSM version of this phone released the same year.

Batteries

 * Removeable Lithium-Ion battery (800 mAh)

Chargers

 * Samsung 18-pin charger (TCH016KBK)

Other accessories

 * Data Comm Cable (PCB016SBK)

Firmware
Only one firmware dump of this phone is known to exist. The file name says "X430_A562" which maybe indicates an ability to cross-flash the two phones, though firmware strings indicate this is in fact an X430 firmware dump.


 * X430_A562 (MEGA)

Hidden Service Menu
A hidden service menu containing some settings and information is accessible using a simple well-known method. This service menu contains some information like SW/HW version, Changing SIO mode, Debug screen, etc.

To access this menu, do the following steps:
 * 1) Make sure the phone is powered on and showing the standby screen
 * 2) Open "Home" Menu by pressing UP key
 * 3) In Home menu, press 0 briefly, when password screen appears, enter 9720
 * 4) Service menu will be opened.

To exit service menu, press END Key.

Quick Booting Mode
Certain early Samsung Anycall phones (like SCH-X430) have a feature called Quick Boot Mode. When this feature is enabled, the phone will skip the boot animation & sound, skip the network search animation, and quickly show the standby screen. Hence the name.

It will show a message with an alert sound every time the phone is powered on, letting the user know that the phone is being powered on in Quick boot mode.

To enable this mode:
 * 1) In standby screen, type 5809540*45680 (SCH-models) or 25836218712358 (SPH-models)
 * 2) type 56. if the phone support this mode, a text will appear, "QUICK BOOT?" (else, if it does not say anything, it means the phone does not have such function supported.)
 * 3) Type 1, and press OK(확인) key
 * 4) Type 02 to restart.

To disable this mode:
 * 1) Do step 1 and 2 again
 * 2) When  "QUICK BOOT?" appears again, type 0 instead.
 * 3) Save by pressing OK(확인) and restart.