[Question]Extract LG Gram Phoenix Secure Core Bios

[Lost_N_BIOS]

Pflugshaupt - here is all the settings sections IFR, you'll have to scroll through and see what you are missing, I was mainly talking the "Advanced" Page, only a few settings are missing. All this can be changed via hex, even if you cannot see the setting. Of course, some of it can easily be made visible too by unsuppressing
http://s000.tinyupload.com/index.php?fil...4805674363

carlinux - see above files

You have backup you can flash now, but depending on how bad things get messed up, you may not be able to flash. You really need a hardware programmer, then backup, if you want to be 100% sure you can always recover.

This logo? If so, yes it can be changed, it's in there three times in one file (3x different sizes)


DVMT preallocated can be set to 64MB (and or made visible)
CFG Lock (aka MSR 0x2E) can be set to disabled or hack applied to powermanagement etc.

Finger Print Sensor can be disabled now via grub / setup_var too if you want (So can above settings)
Enable Finger Print Sensor, VarStoreInfo (VarOffset/VarName): 0x2A3
0x7D25C One Of Option: AUTO, Value (8 bit): 0x2 {09 07 06 00 00 00 02}
0x7D263 One Of Option: Enabled, Value (8 bit): 0x1 {09 07 03 00 00 00 01}
0x7D26A One Of Option: Disabled, Value (8 bit): 0x0 {09 07 04 00 00 00 00}

setup_var 0x2A3 0x? << ? You set to option you want above - disabled example >> setup_var 0x2A3 0x0
Same for below, but using 0x297 0x0

One Of: Finger Print Sensor, VarStoreInfo (VarOffset/VarName): 0x297
0x7D2C5 One Of Option: Disabled, Value (8 bit): 0x0 {09 07 04 00 00 00 00}
0x7D2CC One Of Option: FPC1011, Value (8 bit): 0x1 {09 07 76 0D 00 00 01}
0x7D2D3 One Of Option: FPC1020, Value (8 bit): 0x2 {09 07 77 0D 00 00 02}
0x7D2DA One Of Option: VFSI6101, Value (8 bit): 0x3 {09 07 79 0D 00 00 03}
0x7D2E1 One Of Option: Synaptics VFSI7500, Value (8 bit): 0x4 {09 07 7A 0D 00 00 04}
0x7D2E8 One Of Option: EGIS0300, Value (8 bit): 0x5 {09 07 7B 0D 00 00 05}
0x7D2EF One Of Option: FPC1021, Value (8 bit): 0x6 {09 07 78 0D 00 00 06}

Yes, if you unlock BIOS lock via grub, then flash back your dumped BIOS, that will show you if BIOS is not corrupted you can flash back FPT BIOS region dump or mod etc

[carlinux]

Pflugshaupt - here is all the settings sections IFR, you'll have to scroll through and see what you are missing, I was mainly talking the "Advanced" Page, only a few settings are missing.  All this can be changed via hex, even if you cannot see the setting.  Of course, some of it can easily be made visible too by unsuppressing
http://s000.tinyupload.com/index.php?fil...4805674363

carlinux - see above files

You have backup you can flash now, but depending on how bad things get messed up, you may not be able to flash.  You really need a hardware programmer, then backup, if you want to be 100% sure you can always recover.

This logo?  If so, yes it can be changed, it's in there three times in one file (3x different sizes)


DVMT preallocated can be set to 64MB (and or made visible)
CFG Lock (aka MSR 0x2E) can be set to disabled or hack applied to powermanagement etc.

Finger Print Sensor can be disabled now via grub / setup_var too if you want (So can above settings)
Enable Finger Print Sensor, VarStoreInfo (VarOffset/VarName): 0x2A3
0x7D25C One Of Option: AUTO, Value (8 bit): 0x2 {09 07 06 00 00 00 02}
0x7D263 One Of Option: Enabled, Value (8 bit): 0x1 {09 07 03 00 00 00 01}
0x7D26A One Of Option: Disabled, Value (8 bit): 0x0 {09 07 04 00 00 00 00}

setup_var 0x2A3 0x?  << ? You set to option you want above - disabled example >> setup_var 0x2A3 0x0
Same for below, but using 0x297 0x0

One Of: Finger Print Sensor, VarStoreInfo (VarOffset/VarName): 0x297
0x7D2C5 One Of Option: Disabled, Value (8 bit): 0x0 {09 07 04 00 00 00 00}
0x7D2CC One Of Option: FPC1011, Value (8 bit): 0x1 {09 07 76 0D 00 00 01}
0x7D2D3 One Of Option: FPC1020, Value (8 bit): 0x2 {09 07 77 0D 00 00 02}
0x7D2DA One Of Option: VFSI6101, Value (8 bit): 0x3 {09 07 79 0D 00 00 03}
0x7D2E1 One Of Option: Synaptics VFSI7500, Value (8 bit): 0x4 {09 07 7A 0D 00 00 04}
0x7D2E8 One Of Option: EGIS0300, Value (8 bit): 0x5 {09 07 7B 0D 00 00 05}
0x7D2EF One Of Option: FPC1021, Value (8 bit): 0x6 {09 07 78 0D 00 00 06}

Yes, if you unlock BIOS lock via grub, then flash back your dumped BIOS, that will show you if BIOS is not corrupted you can flash back FPT BIOS region dump or mod etc

Very interesting, There's some stuff related to thunderbolt. In this model apparently there's not thunderbolt but i wonder is there's something that they have disabled in the firmware or really they didn't incude hardware for it. I mean, they needed a licence for it so there's a possibility that they have the hardware in place and disabled the option..
In the same fashion they have touchscreen in all the models in Korea and USA but in europe they don't come with touchscreen neither... so maybe there's something disabled as well. The weight and specs are the same across alll countries.

[Pflugshaupt]

Lost_N_BIOS, thanks a lot for the information. This is very interesting. There's one hidden setting I find especially interesting:

0x6733 One Of: Fan Mode Control:, VarStoreInfo (VarOffset/VarName): 0x4, VarStore: 0x3, QuestionId: 0xF, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 34 00 35 00 0F 00 03 00 04 00 00 10 00 01 00}
0x6744 One Of Option: Automatic, Value (8 bit): 0x0 {09 07 39 00 00 00 00}
0x674B One Of Option: On, Value (8 bit): 0x1 (default) {09 07 38 00 10 00 01}
0x6752 End One Of {29 02}

Does that mean the shell command to change "Fan Mode Control" to "On" would the following?

setup_var 0x4 0x1

What I find slightly confusing is that there are multiple settings in the advanced category using offset 0x3.. how can one tweak those?

[Lost_N_BIOS]

Yes, that would be how you'd change fan control from Auto to On

On your advanced/offset question, you'd have to show me or give me the exact names so I can see what you mean.

[McBride]

Hi guys, this BIOS is compatible with my model, 15Z970-G.AA75C ?
Tks