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Universal Optimus Bootloader Bypass Method

OP bulletfreak

1st September 2014, 10:42 PM   |  #1  
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On this thread someone mentioned a bootloader unlock method originating from the Russian forum 4pda.ru. From my understanding it's basically a modified U-boot and X-loader.This method has so far been ported to the Optimus Black. Thread Here. All we need now is for someone to give our U-boot and X-loader the same modifications as the modified L7 ones has and it should work with no problem. As a matter of fact this should work with any Optimus that uses U-boot.

Files:

L9BootloaderHack.rar: http://forum.xda-developers.com/show...75460686068982

L9disassm.rar: http://forum.xda-developers.com/show...2&postcount=14

Original thread in Russian: http://4pda.ru/forum/index.php?showt...#entry20079444
Last edited by bulletfreak; 1st September 2014 at 11:46 PM.
1st September 2014, 11:31 PM   |  #2  
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We need the original L7 U-boot and X-loader. Can anyone with the phone gives us a dump of them?
2nd September 2014, 04:12 AM   |  #3  
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good intentions. but....

L7 and L9 have diferent CPU. L7 is a Qualcomm MSM7227A Snapdragon and the L9 is a TextasInstruments OMAP4433,

L7 does not implement a u-loader and a x-loader , it implement an unencripted aboot loader, besides L9 have encripted x and u loaders.

The boot.img and the recovery.img of the L7 can be "patched" to bypass the bootloader because the aboot is un-encripted, for this reason this can be done with loki tool but L9 is very very difficult, i mean near of impossible to patch because the algorith of encritation have a very large and very very secret key (CertPK), only knowed for LG.
Last edited by puntoazul; 2nd September 2014 at 04:14 AM.
2nd September 2014, 04:14 AM   |  #4  
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Quote:
Originally Posted by puntoazul

good intentions. but....

L7 and L9 have diferent CPU. L7 is a Qualcomm MSM7227A Snapdragon and the L9 is a TextasInstruments OMAP4433,

L7 does not implement a u-loader and a x-loader , it implement an unencripted aboot loader, besides L9 have encripted x and u loaders.

The boot.img and the recovery.img of the L7 can be "patched" to bypass the bootloader because the aboot is un-encripted, for this reason this can be done with loki tool but L9 is very very difficul, i mean near of impossible to patch because the algorith of encritation have a very large and very very secret key (CertPK), only knowed for LG.

That's awful. Why us? It's not like it's a flagship phone or anything. ****ing LG
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bootloader unlock, optimus l9
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