https://www.bios-mods.com/w/api.php?action=feedcontributions&feedformat=atom&user=Brainsucker 2026-05-12T21:40:31Z User contributions MediaWiki 1.28.2 https://www.bios-mods.com/w/index.php?title=How_to_dump_RSA_signed_Insyde_BIOS&diff=38 2013-08-17T08:14:18Z

<p>Brainsucker: </p> <hr /> <div>Starting from 2012 Insyde Corp. implemented RSA algorithm to crypt their BIOSs to avoid modding. To unpack such BIOS with Phoenix tool is impossible. However, we are 100% certain that the BIOS rom stored in the motherboard is a decrypted variant. The easiest way to get it - make a backup of current BIOS before flashing with the new one. But we can also flash with a modded BIOS version over the same BIOS version number.<br /> <br /> <br /> Here are the instructions: <br /> <br /> === Flasher (platform.ini) way ===<br /> <br /> &#039;&#039;&#039;1&#039;&#039;&#039;. Take your current executable BIOS flasher.&lt;br /&gt;<br /> &#039;&#039;&#039;2&#039;&#039;&#039;. Unpack with any unzip software&lt;br /&gt;<br /> &#039;&#039;&#039;3&#039;&#039;&#039;. Find &quot;platform.ini&quot; file&lt;br /&gt;<br /> &#039;&#039;&#039;4&#039;&#039;&#039;. Edit following lines with Notepad<br /> <br /> &lt;tt&gt;[BackupROM]&lt;/tt&gt;&lt;br /&gt;<br /> &lt;tt&gt;Flag=1&lt;/tt&gt;&lt;br /&gt;<br /> &lt;tt&gt;FilePath=c:&lt;/tt&gt;&lt;br /&gt;<br /> &lt;tt&gt;FileName=&lt;put bios name here&gt;.BIN&lt;/tt&gt;&lt;br /&gt;<br /> <br /> &#039;&#039;&#039;5&#039;&#039;&#039;. Flash the same BIOS again with the modified platform.ini&lt;br /&gt;<br /> &#039;&#039;&#039;6&#039;&#039;&#039;. After reboot you will find dumped current BIOS on C drive&lt;br /&gt;<br /> <br /> === UEFI way (EFI system partition) ===<br /> <br /> On some new platforms (for example HP Envy 17 (17-j005tx) &#039;2013) BIOS reading (backup) feature is disabled. In such case flasher will show the following error message &#039;&#039;&#039;IHISI: flash read error in SMI!&#039;&#039;&#039; and the system will hang (on some notebooks you might even need to unplug power and remove battery to shutdown system).<br /> [[File:Flash read error small.jpg]]<br /> It doesn&#039;t seem to depend on Windows version or type (x64/x86), even WinPE recovery disks won&#039;t help.<br /> <br /> However in most such cases flasher won&#039;t update BIOS directly, but will use UEFI BIOS update procedure (after rebooting). New BIOS is copied (in unencrypted form) to UEFI partition, so we just need to find it there. <br /> &#039;&#039;&#039;EFI System Partition&#039;&#039;&#039; is not normally visible in Windows and you won&#039;t be able to assign a disk letter to it using standard Disk Manager. However the following command in console under Administrator account (Run as Administrator - elevated command prompt is required) will help (mounting EFI partition as disk X:):&lt;br/&gt;<br /> &lt;tt&gt;mountvol X: /S&lt;/tt&gt;&lt;br/&gt;<br /> You might want to run this command from some console file manager (like FAR, http://farmanager.com/) or run your file manager side-by-side under Administrator account, since X: disk won&#039;t be visible/accessible otherwise.<br /> Then walk through disk X: (just don&#039;t delete or modify anything) looking for copies of your unencrypted BIOS, for HP Envy 17 they were found in &#039;&#039;&#039;X:\EFI\HP\BIOS\Current&#039;&#039;&#039; folder, in form of &#039;&#039;&#039;01966.bin&#039;&#039;&#039; file (instead of original encrypted 01966.fd).</div>

Brainsucker https://www.bios-mods.com/w/index.php?title=File:Flash_read_error_small.jpg&diff=37 2013-08-17T07:55:54Z

<p>Brainsucker: </p> <hr /> <div></div>

Brainsucker