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Help Unlock Bootloader

OP slipsystem

18th June 2014, 09:24 AM   |  #1  
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Is there anyone out there that can help the members of the LG Optimus L5 II unlock there bootloader?

here is our phone on GSM

http://www.gsmarena.com/lg_optimus_l5_ii_e460-5293.php

the device is mt6575

the device is locked by LG.

As far as i understand the uboot partition is where the security check is comming from.

I cannot use spflash tool as it does not see my device.

so my question is this.

the LG optimus L3 II have managed to unlock there bootloader using an aboot img fro the LG optimus L5

could we replace our uboot img with the L3 II aboot img?

alternatively could we use a uboot img from another mt6575 device

my partition table is as follows

Code:
preloader 0x0000000000040000 0x0000000000000000 2 /dev/misc-sd
dsp_bl 0x00000000005c0000 0x0000000000040000 2 /dev/misc-sd
mbr 0x0000000000080000 0x0000000000000000 2 /dev/block/mmcblk0
ebr1 0x0000000000080000 0x0000000000080000 2 /dev/block/mmcblk0p1
ebr2 0x0000000000080000 0x0000000000100000 2 /dev/block/mmcblk0
misc2 0x0000000000800000 0x0000000000180000 2 /dev/block/mmcblk0
pmt 0x0000000000400000 0x0000000000980000 2 /dev/block/mmcblk0
nvram 0x0000000000300000 0x0000000000d80000 2 /dev/block/mmcblk0
seccfg 0x0000000000080000 0x0000000001080000 2 /dev/block/mmcblk0
uboot 0x0000000000080000 0x0000000001100000 2 /dev/block/mmcblk0
bootimg 0x0000000000600000 0x0000000001180000 2 /dev/block/mmcblk0
recovery 0x0000000000700000 0x0000000001780000 2 /dev/block/mmcblk0
sec_ro 0x0000000000600000 0x0000000001e80000 2 /dev/block/mmcblk0p2
misc 0x0000000000080000 0x0000000002480000 2 /dev/block/mmcblk0
logo 0x0000000000300000 0x0000000002500000 2 /dev/block/mmcblk0
expdb 0x0000000000100000 0x0000000002800000 2 /dev/block/mmcblk0
persist_lg 0x0000000000800000 0x0000000002900000 2 /dev/block/mmcblk0p3
persist 0x0000000000600000 0x0000000003100000 2 /dev/block/mmcblk0p4
mpt 0x0000000001600000 0x0000000003700000 2 /dev/block/mmcblk0p5
lgfota 0x0000000000a00000 0x0000000004d00000 2 /dev/block/mmcblk0
swap 0x0000000000a00000 0x0000000005700000 2 /dev/block/mmcblk0p6
rct 0x0000000000100000 0x0000000006100000 2 /dev/block/mmcblk0
android 0x0000000043c00000 0x0000000006200000 2 /dev/block/mmcblk0p7
cache 0x0000000013600000 0x0000000049e00000 2 /dev/block/mmcblk0p8
usrdata 0x0000000088700000 0x000000005d400000 2 /dev/block/mmcblk0p9
fat 0x0000000000b00000 0x00000000e5b00000 2 /dev/block/mmcblk0p10
bmtpool 0x0000000000a00000 0x00000000ff9f0050 2 /dev/block/mmcblk0
how would I dd uboot partition if it is on the same block as others.


I thank you for your help in advanced.
18th June 2014, 10:44 PM   |  #2  
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Quote:
Originally Posted by slipsystem

Is there anyone out there that can help the members of the LG Optimus L5 II unlock there bootloader?

here is our phone on GSM

http://www.gsmarena.com/lg_optimus_l5_ii_e460-5293.php

the device is mt6575

the device is locked by LG.

As far as i understand the uboot partition is where the security check is comming from.

I cannot use spflash tool as it does not see my device.

so my question is this.

the LG optimus L3 II have managed to unlock there bootloader using an aboot img fro the LG optimus L5

could we replace our uboot img with the L3 II aboot img?

alternatively could we use a uboot img from another mt6575 device

my partition table is as follows

Code:
preloader 0x0000000000040000 0x0000000000000000 2 /dev/misc-sd
dsp_bl 0x00000000005c0000 0x0000000000040000 2 /dev/misc-sd
mbr 0x0000000000080000 0x0000000000000000 2 /dev/block/mmcblk0
ebr1 0x0000000000080000 0x0000000000080000 2 /dev/block/mmcblk0p1
ebr2 0x0000000000080000 0x0000000000100000 2 /dev/block/mmcblk0
misc2 0x0000000000800000 0x0000000000180000 2 /dev/block/mmcblk0
pmt 0x0000000000400000 0x0000000000980000 2 /dev/block/mmcblk0
nvram 0x0000000000300000 0x0000000000d80000 2 /dev/block/mmcblk0
seccfg 0x0000000000080000 0x0000000001080000 2 /dev/block/mmcblk0
uboot 0x0000000000080000 0x0000000001100000 2 /dev/block/mmcblk0
bootimg 0x0000000000600000 0x0000000001180000 2 /dev/block/mmcblk0
recovery 0x0000000000700000 0x0000000001780000 2 /dev/block/mmcblk0
sec_ro 0x0000000000600000 0x0000000001e80000 2 /dev/block/mmcblk0p2
misc 0x0000000000080000 0x0000000002480000 2 /dev/block/mmcblk0
logo 0x0000000000300000 0x0000000002500000 2 /dev/block/mmcblk0
expdb 0x0000000000100000 0x0000000002800000 2 /dev/block/mmcblk0
persist_lg 0x0000000000800000 0x0000000002900000 2 /dev/block/mmcblk0p3
persist 0x0000000000600000 0x0000000003100000 2 /dev/block/mmcblk0p4
mpt 0x0000000001600000 0x0000000003700000 2 /dev/block/mmcblk0p5
lgfota 0x0000000000a00000 0x0000000004d00000 2 /dev/block/mmcblk0
swap 0x0000000000a00000 0x0000000005700000 2 /dev/block/mmcblk0p6
rct 0x0000000000100000 0x0000000006100000 2 /dev/block/mmcblk0
android 0x0000000043c00000 0x0000000006200000 2 /dev/block/mmcblk0p7
cache 0x0000000013600000 0x0000000049e00000 2 /dev/block/mmcblk0p8
usrdata 0x0000000088700000 0x000000005d400000 2 /dev/block/mmcblk0p9
fat 0x0000000000b00000 0x00000000e5b00000 2 /dev/block/mmcblk0p10
bmtpool 0x0000000000a00000 0x00000000ff9f0050 2 /dev/block/mmcblk0
how would I dd uboot partition if it is on the same block as others.


I thank you for your help in advanced.

Ofcourse SPFlash can see the device - use COM port mode instead of USB, and You should put the phone in BL mode + installed LG United mobile driver etc. I have all the partitions in IMG files from my E440 - L4II, even if you make a dump of the uboot partition i think its not possible to remove the security, the cause: it is a binary, to do so, you need the source code of the bootloader... Or at least that's what I think it is... I may be wrong for the last one. Now about using uboot from another device: NO, never. uboot does a lot of the initialization of the system's hardware: RIL, Radio chips, LCD, keys, cameras, self-tests and so on, since the motherboards in different phones are different, the configuration of the bootloader is supposed to be, too.
7th July 2014, 10:37 AM   |  #3  
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So did anyone unlock the BL on the E455 ?
13th July 2014, 08:06 PM   |  #4  
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Quote:
Originally Posted by ghatothkach

So did anyone unlock the BL on the E455 ?

Yes, I have unlocked bootloader for E455 model.
Also I have beta CWM for this model (backup worked)
But I very bad speak english and don't have many post on this forum that post link on file.
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