[LG Optimus 2x] tryin:
I downloaded bct_dump some time ago, from here, but this is my BCT file:

Version = 0x00020001;

BlockSize = 0x00004000;

PageSize = 0x00000200;

PartitionSize = 0x01000000;

# Bootloader used = 1;

# Bootloaders max = 4;

# BCT size = 4080;

# Hash size = 16;

# Crypto offset = 16;

# Crypto length = 4064;

# Max BCT search blocks = 64;

#

# These values are set by cbootimage using the

# bootloader provided by the Bootloader=...

# configuration option.

#

# Bootloader[0].Version = 0x00000001;

# Bootloader[0].Start block = 288;

# Bootloader[0].Start page = 0;

# Bootloader[0].Length = 891020;

# Bootloader[0].Load address = 0x00108000;

# Bootloader[0].Entry point = 0x00108000;

# Bootloader[0].Attributes = 0x00000004;

DevType[0] = NvBootDevType_Sdmmc;

DeviceParam[0].SdmmcParams.ClockDivider = 0x0000000c;

DeviceParam[0].SdmmcParams.DataWidth = NvBootSdmmcDataWidth_8Bit;

DeviceParam[0].SdmmcParams.MaxPowerClassSupported = 0x00000000;

DevType[1] = NvBootDevType_Sdmmc;

DeviceParam[1].SdmmcParams.ClockDivider = 0x0000000c;

DeviceParam[1].SdmmcParams.DataWidth = NvBootSdmmcDataWidth_8Bit;

DeviceParam[1].SdmmcParams.MaxPowerClassSupported = 0x00000000;

DevType[2] = NvBootDevType_Sdmmc;

DeviceParam[2].SdmmcParams.ClockDivider = 0x0000000c;

DeviceParam[2].SdmmcParams.DataWidth = NvBootSdmmcDataWidth_8Bit;

DeviceParam[2].SdmmcParams.MaxPowerClassSupported = 0x00000000;

DevType[3] = NvBootDevType_Sdmmc;

DeviceParam[3].SdmmcParams.ClockDivider = 0x0000000c;

DeviceParam[3].SdmmcParams.DataWidth = NvBootSdmmcDataWidth_8Bit;

DeviceParam[3].SdmmcParams.MaxPowerClassSupported = 0x00000000;

SDRAM[0].MemoryType = NvBootMemoryType_LpDdr2;

SDRAM[0].PllMChargePumpSetupControl = 0x00000008;

SDRAM[0].PllMLoopFilterSetupControl = 0x00000000;

SDRAM[0].PllMInputDivider = 0x0000000c;

SDRAM[0].PllMFeedbackDivider = 0x00000258;

SDRAM[0].PllMPostDivider = 0x00000000;

SDRAM[0].PllMStableTime = 0x0000012c;

SDRAM[0].EmcClockDivider = 0x00000001;

SDRAM[0].EmcAutoCalInterval = 0x00000000;

SDRAM[0].EmcAutoCalConfig = 0xe0a61111;

SDRAM[0].EmcAutoCalWait = 0x00000000;

SDRAM[0].EmcPinProgramWait = 0x00000000;

SDRAM[0].EmcRc = 0x00000012;

SDRAM[0].EmcRfc = 0x00000027;

SDRAM[0].EmcRas = 0x0000000d;

SDRAM[0].EmcRp = 0x00000006;

SDRAM[0].EmcR2w = 0x00000007;

SDRAM[0].EmcW2r = 0x00000005;

SDRAM[0].EmcR2p = 0x00000003;

SDRAM[0].EmcW2p = 0x0000000b;

SDRAM[0].EmcRrd = 0x00000003;

SDRAM[0].EmcRdRcd = 0x00000006;

SDRAM[0].EmcWrRcd = 0x00000006;

SDRAM[0].EmcRext = 0x00000003;

SDRAM[0].EmcWdv = 0x00000003;

SDRAM[0].EmcQUseExtra = 0x00000006;

SDRAM[0].EmcQUse = 0x00000007;

SDRAM[0].EmcQRst = 0x00000004;

SDRAM[0].EmcQSafe = 0x00000009;

SDRAM[0].EmcRdv = 0x0000000d;

SDRAM[0].EmcRefresh = 0x0000045f;

SDRAM[0].EmcBurstRefreshNum = 0x00000000;

SDRAM[0].EmcPdEx2Wr = 0x00000004;

SDRAM[0].EmcPdEx2Rd = 0x00000004;

SDRAM[0].EmcPChg2Pden = 0x00000006;

SDRAM[0].EmcAct2Pden = 0x00000008;

SDRAM[0].EmcAr2Pden = 0x00000001;

SDRAM[0].EmcRw2Pden = 0x0000000f;

SDRAM[0].EmcTxsr = 0x0000002a;

SDRAM[0].EmcTcke = 0x00000003;

SDRAM[0].EmcTfaw = 0x0000000f;

SDRAM[0].EmcTrpab = 0x00000007;

SDRAM[0].EmcTClkStable = 0x00000007;

SDRAM[0].EmcTClkStop = 0x00000002;

SDRAM[0].EmcTRefBw = 0x000004e0;

SDRAM[0].EmcFbioCfg1 = 0x00000000;

SDRAM[0].EmcFbioDqsibDlyMsb = 0x00000000;

SDRAM[0].EmcFbioDqsibDly = 0x34343434;

SDRAM[0].EmcFbioQuseDlyMsb = 0x00000000;

SDRAM[0].EmcFbioQuseDly = 0x00000000;

SDRAM[0].EmcFbioCfg5 = 0x00000282;

SDRAM[0].EmcFbioCfg6 = 0x00000002;

SDRAM[0].EmcFbioSpare = 0x00000000;

SDRAM[0].EmcMrsResetDllWait = 0x00000000;

SDRAM[0].EmcMrsResetDll = 0x00000000;

SDRAM[0].EmcMrsDdr2DllReset = 0x00000000;

SDRAM[0].EmcMrs = 0x00000000;

SDRAM[0].EmcEmrsEmr2 = 0x00000000;

SDRAM[0].EmcEmrsEmr3 = 0x00000000;

SDRAM[0].EmcEmrsDdr2DllEnable = 0x00000000;

SDRAM[0].EmcEmrsDdr2OcdCalib = 0x00000000;

SDRAM[0].EmcEmrs = 0x00000000;

SDRAM[0].EmcMrw1 = 0x0001008a;

SDRAM[0].EmcMrw2 = 0x00020004;

SDRAM[0].EmcMrw3 = 0x00030002;

SDRAM[0].EmcMrwResetCommand = 0x003f0000;

SDRAM[0].EmcMrwResetNInitWait = 0x0000000a;

SDRAM[0].EmcAdrCfg1 = 0x00060302;

SDRAM[0].EmcAdrCfg = 0x01060302;

SDRAM[0].McEmemCfg = 0x00080000;

SDRAM[0].McLowLatencyConfig = 0x80000003;

SDRAM[0].EmcCfg2 = 0x00000403;

SDRAM[0].EmcCfgDigDll = 0xe0000413;

SDRAM[0].EmcCfgClktrim0 = 0x00000000;

SDRAM[0].EmcCfgClktrim1 = 0x00000000;

SDRAM[0].EmcCfgClktrim2 = 0x00000000;

SDRAM[0].EmcCfg = 0x0001ff00;

SDRAM[0].EmcDbg = 0x01000020;

SDRAM[0].AhbArbitrationXbarCtrl = 0x00010000;

SDRAM[0].EmcDllXformDqs = 0x00000010;

SDRAM[0].EmcDllXformQUse = 0x00000008;

SDRAM[0].WarmBootWait = 0x00000001;

SDRAM[0].EmcCttTermCtrl = 0x00000802;

SDRAM[0].EmcOdtWrite = 0x00000000;

SDRAM[0].EmcOdtRead = 0x00000000;

SDRAM[0].EmcZcalRefCnt = 0x00000000;

SDRAM[0].EmcZcalWaitCnt = 0x0000001b;

SDRAM[0].EmcZcalMrwCmd = 0x000a0056;

SDRAM[0].EmcMrwZqInitDev0 = 0x800a00ff;

SDRAM[0].EmcMrwZqInitDev1 = 0x400a00ff;

SDRAM[0].EmcMrwZqInitWait = 0x00000001;

SDRAM[0].EmcDdr2Wait = 0x00000000;

SDRAM[0].PmcDdrPwr = 0x00000000;

SDRAM[0].ApbMiscGpXm2CfgAPadCtrl = 0x77ffc000;

SDRAM[0].ApbMiscGpXm2CfgCPadCtrl2 = 0x08080040;

SDRAM[0].ApbMiscGpXm2CfgCPadCtrl = 0x77fffff8;

SDRAM[0].ApbMiscGpXm2CfgDPadCtrl2 = 0x00000000;

SDRAM[0].ApbMiscGpXm2CfgDPadCtrl = 0x77fffff8;

SDRAM[0].ApbMiscGpXm2ClkCfgPadCtrl = 0x77ffc000;

SDRAM[0].ApbMiscGpXm2CompPadCtrl = 0x01f1f008;

SDRAM[0].ApbMiscGpXm2VttGenPadCtrl = 0x00005500;