[T-Mobile LG G2x] Core Memory:
UPDATE April 21, 2012

I've found the P999 Qualcomm MDM6600 Calibration Configuration data at:

http://csmg.lgmobile.com:9002/swdat..._11/[TachyonV34]LGP999_110401_Calibration.zip

It contains the WCDMA and GSM Calibration data for the P999. It shows that the only P999 MDM6600 calibration data used is for the following bands:

-<TACHYON>

-<HEADER> <TYPE>Calibration Configuration</TYPE>

<USAGE>Tachyon</USAGE>

<VERSION>1.0.0</VERSION>

<DATE>2010.11.16 10:46</DATE>

<AUTHOR>Seol Joong Hwan</AUTHOR>

</HEADER>

-<BODY>

-<MODEL_INFORMATION>

<MODEL_NAME>LGP999</MODEL_NAME> <BUYER_NAME>AWC</BUYER_NAME> <BIN_VERSION/>

<HWVER/>

<BAUDRATE>115200</BAUDRATE>

-<BAND_INFORMATION>

-<SYSTEM NAME="WCDMA">

<BAND>WCDMA_BAND1</BAND>

<BAND>WCDMA_BAND4</BAND>

</SYSTEM>

-<SYSTEM NAME="GSM">

<BAND>GSM900</BAND>

<BAND>GSM850</BAND>

<BAND>DCS1800</BAND>

<BAND>PCS1900</BAND>

</SYSTEM>

</BAND_INFORMATION>

-<TACHYON>

-<HEADER>

<TYPE>CallSetup Configuration</TYPE>

<USAGE>Tachyon</USAGE>

<VERSION>2.0.0</VERSION>

<!-- HANDOVER OPTION ADDED IN GSM NST SETUP -->

<DATE>2007.09.22 08:30</DATE>

<AUTHOR>Seol Joong Hwan</AUTHOR>

</HEADER> -<BODY>

-<MODEL_INFORMATION>

<MODEL_NAME>LGP999</MODEL_NAME> <BUYER_NAME>AWC</BUYER_NAME>

-<BAND_INFORMATION>

<!-- ROWCOUNT => 해당 Phone이 지원하는 SYS_TYPE의 수.-->

-<SYS_TYPE NAME="HSDPA">

<!-- NAME => 지원하는 System type 명 ex) AMPS, CDMA, WCDMA, GSM, GPRS, EVDO, HSPA -->

<!-- ROWCOUNT => 선택 System에서 Phone이 지원하는 BAND의 수 -->

<BAND>WCDMA_BAND1</BAND>

</SYS_TYPE>

-<SYS_TYPE NAME="WCDMA">

<!-- NAME => 지원하는 System type 명 ex) AMPS, CDMA, WCDMA, GSM, GPRS, EVDO, HSPA -->

<!-- ROWCOUNT => 선택 System에서 Phone이 지원하는 BAND의 수 -->

<BAND>WCDMA_BAND1</BAND>

<BAND>WCDMA_BAND5</BAND>

</SYS_TYPE> -<SYS_TYPE NAME="GSM">

<!-- NAME => 지원하는 System type 명 ex) AMPS, CDMA, WCDMA, GSM, GPRS, EVDO, HSPA -->

<!-- ROWCOUNT => 선택 System에서 Phone이 지원하는 BAND의 수 -->

<BAND>DCS1800</BAND>

<BAND>GSM900</BAND>

<BAND>PCS1900</BAND>

<BAND>GSM850</BAND>

</SYS_TYPE>

</BAND_INFORMATION>

</MODEL_INFORMATION>

Sequence Configuration Tachyon 1.0.0 2007.09.22 08:30 Seol Joong Hwan QUALCOMM LGP999 AWC xx 115200 WCDMA_BAND1 DCS1800 GSM900 PCS1900 GSM850 3G_QCT_COM 4.2 3.0 PHONE_POWER_OFF,SLEEP1000,D1FF,SLEEP2000,PHONE_POWER_ON PHONE_POWER_OFF,SLEEP1000,D2FF LGE Android 3 YES YES YES YES YES YES YES YES YES 70000 CHANGE_DMSS NVC CHANGE_FTM CAL_CHECK_INIT WCDMA,WCDMA_BAND1,THERM WCDMA,WCDMA_BAND1,XO WCDMA,WCDMA_BAND1,TX HDET WCDMA,WCDMA_BAND1,TX COMP WCDMA,WCDMA_BAND1,TX LIMIT WCDMA,WCDMA_BAND1,RX WCDMA,WCDMA_BAND4,TX HDET WCDMA,WCDMA_BAND4,TX COMP WCDMA,WCDMA_BAND4,TX LIMIT WCDMA,WCDMA_BAND4,RX GSM,GSM900,TX LINEAR GSM,GSM850,TX LINEAR GSM,DCS1800,TX LINEAR GSM,PCS1900,TX LINEAR GSM,GSM900,RX GSM,GSM850,RX GSM,DCS1800,RX GSM,PCS1900,RX SET_RFNV_LOAD SET_CAL_CHECK CHANGE_FTM YES YES YES YES YES NO YES YES YES NO YES NO NO NO YES YES YES YES YES NO YES YES YES NO YES NO NO NO YES YES YES YES YES NO YES YES YES NO YES NO NO NO YES YES YES YES YES YES YES YES NO YES NO NO NO YES YES NO YES YES YES YES YES YES NO YES NO NO YES YES NOS NO NO NO NO YES YES YES YES YES YES YES YES NO YES NO NO YES NO NO NO NO NO

MDM6600 calibration data is needed to enable the other bands to work. If someone supplies the calibration data from another phone which has the MDM6600 enabled for the other bands I may be able to integrate it into the P999 MDM6600 calibration data and enable all of the bands.

UDATE January 6 2012

Here is a link to more information about the Qualcomm MDM6200 and MDM6600

80-VR001-3 MDM6200 AND MDM6600 MOBILE DATA MODEM USER GUIDE

http://www.docin.com/p-162606115.html

PREVIOUS:

I've learned a bit about using QXDM Professional and looked at NV memory content with the NV Browser function of QXDM and found that the G2X radio modem is capable of using WCDMA 800, 900, 1800, 1900, 2100 and it appears that the Rx and Tx tuning and power setting parameters for each were done at the factory (I am not certain if every one of those required for practical operation were done for the non-activated channels). I also found references to memory areas reserved for SIRIUS. I have to find where the band setting is located and I think there's a special password to be able to access the restricted features which I will need to get too (It's not the SPC number which is 000000).

I've found the Qualcomm modem AT command reference document which applies to the mdm6600 chip in the LG-P999/G2X and, when I querried the modem to determine what bands it supports, I got the list of available bands/frequencies and the geographical location for each. Apparently, the frequencies can be set through the AT commands but I am not brave enough to try it. It may also be a way to flash the baseband. Maybe someone else has or will who is braver than me and will post their findings.

Here's the reference document:

http://mod-book.ru/files/Gobi2k/Documents/AT_Command_Set_Gobi.pdf

The Band preferences AT command is located on page 36.

I set the phone port as: CP USB and accessed with Windows HyperTerminal with the port set at the one for the LGE Mobile USB Modem driver.

I queried the modem with: AT$QCBANDPREF=?

The modem responded with:

$QCBANDPREF: (0-1),

"1.BC0_A"

"2.BC0_B"

"3.BC0"

"4.BC1"

"5.BC3"

"6.BC4"

"7.BC5"

"8.GSM_DCS_1800"

"9.GSM_EGSM_900"

"10.GSM_PGSM_900"

"11.BC6"

"12.BC7"

"13.BC8"

"14.BC9"

"15.BC10"

"16.BC11"

"17.BC12"

"18.BC14"

"19.BC15"

"20.BC16

"21.GSM_450"

"22.GSM_480"

"23.GSM_750"

"24.GSM_850"

"25.GSM_RGSM_900"

"26.GSM_PCS_1900"

"27.WCDMA_I_IMT_2000"

"28.WCDMA_II_PCS_1900"

"29.WCDMA_III_1700 "

"30.WCDMA_IV_1700"

"31.WCDMA_V_850"

"32.WCDMA_VI_800 "

"33.WCDMA_VII_2600"

"34.WCDMA_VIII_900"

"35.WCDMA_IX_1700"

"36.WLAN_US_2400 "

"37.WLAN_JAPAN_2400"

"38.WLAN_EUROPE_2400"

"39.WLAN_SPAIN_2400"

"40.WLAN_FRANCE_2400 "

"41.WLAN_US_5000"

"42.WLAN_JAPAN_5000"

"43.WLAN_EUROPE_5000"

"44.WLAN_SPAIN_5000"

"45.WLAN_FRANCE_5000 "

"46.Any"

Here's what's on page 36 of the AT command reference document:

Command Description Operation Supported

AT$QCBANDPR

EF=

<persistence>,

<band_indices>

Sets the band

preferences of

the device

Result: Band preferences set

and also saved in NV memory,

based on persistence parameter

Note: For usage information,

enter AT$QCBANDPREF=?

Persistence=1 indicates that the

band setting will be saved

across power cycles.

Cmd will return OK as long as

there is at least one supported

band in the list of bands.

For example, $QCBANDPREF =

1, “27,28” will set the band

preferences to WCDMA 2100

and WCDMA 1900 only.

Also, here's where there are some more AT commands which work:

http://www.pharscape.org/GlobeTrotterGPRShowto#_Toc83808119

And, when the phone is in Engineering Mode, the data from the Engineering Mode pages appears in the HyperTerminal window and changes in real time for the Engineering Mode page displayed on the phone. Here's an example:

+XCGEDPAGE: ITEM_3G : 0 #[ RRC State & Serving Cell Information ] ##RRC State

: DISCONNECTED #S_FREQ : 1588 #S_PSC : 255 #S_RSCP : -90 #S_ECIO: -10 #S_R

SSI : - 80 #Tx Power : 0 #DRX Cycle : 64 #Srxlevel : 25 #Squal : 16 #SIR :

Not_Yet #SIR Target : Not_Yet #BLER : Not_Yet #BLER Target : Not_Yet#####ITEM

_3G : 1 #[ Intra Cell FDD Information ] ## UARFCN PSC RSCP EcIo isAS #N0 :

1588 255 -90 -10 0#N1 : 1588 382 -110 -31 0#N2 : 1588 318 -102 -22 0#N3 : 1588

247 -90 -10 0######ITEM_3G : 2 #[ Inter Cell FDD Information ] ## UARFCN PSC

RSCP EcIo RSSI isAS ######ITEM_3G : 3 #[ Inter RAT Information ] ##ARFCN

BSIC RSSI####ITEM_3G : 4 #[ Current State Information ] ##RAB ID : N/A #RAB I

nfo (UL/DL Bitrate) : 0 / 0 #Cell Selection state : CAMPED_ST_CELL #SRB ID : Not

_Yet #L1 State : L1M_PCH_SLEEP

+XCGEDPAGE: ITEM_RFCAL : 0#[ RFCAL Information ]##PID : OR11S(IMEI removed) #Ezlo

oks : Online #CalDate : 2011.9.20 22:6:17 #IP : 200.71.1.192 #Section: 1#WCD

MA1 : 22.37, 22.45, 0.00 #WCDMA2 : 0.00, 0.00, 0.00 #WCDMA4 : 23.47, 2

3.19, 0.00 #WCDMA5 : 0.00, 0.00, 0.00 #WCDMA8 : 0.00, 0.00, 0.00 #GSM8

50 : 32.70, 32.63, 0.00 #GSM900 : 32.76, 32.71, 0.00 #DCS1800 : 29.40,

29.50, 0.00 #PCS1900 : 30.10, 29.90, 0.00 #LOSS : #-1.06, -1.18, -1.2

4 #-1.54, -1.64, -1.74 #-1.80, -1.79, -2.01 #-2.11, -2.21