Original Firmware Filestructure

The Firmware consists of many Parts
The PSI / SLB and UA have something to do with the booloader, because a other LG phone with the same chip has the same Filestructure

The Parts from an extracted Firmware like (not downloaded files)

LG KM900 ARENA V10_E		Filesize	SAMSUNG-c6620	Filesize
Probably Rom Bootloader	01_psi_large_block_16_bit_paging.flb	127Kb	psi.flb	115Kb
Probably Rom Bootloader	02_slb_large_block_16_bit_paging.flb	531Kb	slb.flb	252Kb
Probably Debug / Flash Bootloader	03_ua_large_block_16_bit_paging.flb	Kb	cell-content	Kb
Stand BB for Baseband? => PMB8878?	04_BB_MPEH.dsp	Kb	cell-content	Kb
Stand BB for Baseband? => PMB8878?	05_BB_MPEH.eep	Kb	CLICK.eep	Kb
Stand BB for Baseband? => PMB8878?	06_BB_MPEH.fls	Kb	CLICK.fls	Kb
Stand BB for Baseband? => PMB8878?	07_BB_CUST.dfat	Kb	cell-content	Kb
Probably also a Bootloader from A250 Imageon	08_a250_bl1.fls	Kb	cell-content	Kb
Includes Code from LG for A250 Imageon	09_a250_image.fls	Kb	cell-content	Kb
Includes Code from LG for A250 Imageon	10_a250_oem_code.fls	Kb	cell-content	Kb

The structure of the psi.flb from the Samsung is 99%the same!
It use the same CPU as the Arena

This are the Parts who can downloaded with Flashtool

Arena Adresses
Samsung Adresses

Partition no?#	File	Start Adress on Arena	Lengh on Arena	Size in Kb	Partition no?#	Start on Samsung	Lengh on Samsung
5	CALIB	0x56000000	0x14000	80
7	STATIC_EPP	0x544FC000	0x14000	80	7	0x45000000	0x20000
6	DYNAMIC_EPP	0x54440000	0xA000	40	6	0x43F40000	0xC000
4	CODE	0x46100000	0xF00000		4	0x41000000	0xF30000
4	CODE	0x40000000	0xA0000		5	Named Cust 0x41F30000	0x50000
5	CLONE	0x30000000	0x10800100		5	0x38000000	0x4200000
5	PREFLASH	0x33000000	0x3FC00		5	0x30000000	0x4200100
5	IMAGE	0x20000000	0xA			0x	0x
0	EXEPTION_LOG	0x18000000	0x48B0200		3	0x82000	0x40000
0	ROOT_DISK	0x10000000	0x58A0200		0	0x50000	0x10
0	CUST_DISK	0x80000000	0x2A55800		0	0x50000	0xE
0	USER_DISK	0x34000000	0x12C00000		0	0x50000	0xF
5	AMD_BL1	0x32100000	0xC800000			not existing
5	AMD_BL2	0x32200000	0x12C00000		not existing
5	AMD_OEM	0x32300000	0x12C00000		not existing
5	AMD_OEM_PA	0x32400000	0x12C00000		not existing
5	AMD_USER	0x32500000	0x12C00000			not existing
5	OEM_DATA	0x32500000	0x0512C000			not existing
	PSI	0x00090000	0x00010000	16		0x43F40000	0xC000
	EBL	0x40000000	0x03000400	510		0x43F40000	0xC000

Complete Memory Map

Attention: The first Number is the Start-byte, the second the Endbyte!

ARM926EJ-S Memory Map

3.2 System Memory Map
This section summarizes the system boot settings and memory maps.
3.2.1 System Boot Settings
The boot method is selected by using the strap pins BRBOOTSEL,
VINITHI, and INITRAM. These three pins determine which device and
which address location the ARM926EJ-S processor uses. Possible boot
devices are the External SRAM, an external slave connected to the AHB
Slave Expansion Port using the Segmentation Bridge, or the Instruction
TCM, if the Processor System for ARM926EJ-S supports the use of
TCMs. Check the ARM926EJ-S processor datasheet.