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Bitácora Técnica de Tux&Cía., Santa Cruz de la Sierra, BO
Bitácora Central: Tux&Cía.
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May the source be with you!

Wednesday, May 24, 2017

Güindos inside

http://blog.zorinaq.com/i-contribute-to-the-windows-kernel-we-are-slower-than-other-oper/

Saturday, May 13, 2017

debricking a Router

http://foro.seguridadwireless.net/openwrt/procedimientos-para-leer-y-programar-memorias-serie-spi-flash-25xxx/

the Kill Switch

https://blog.elcomsoft.com/2016/05/understanding-and-bypassing-reset-protection/

Friday, May 12, 2017

root password of CA SecureSpan appliance

https://communities.ca.com/thread/241749010#comment-241863618

Novatech NVTEF10MIX


Intel powered classmate PC
The Intel Classmate PC for students and pupils have been around for several versions to buy and it has now introduced two new models, once., In the form of a new Windows 8.1 notebooks and an Android tablet PCs
The latest generation of the Intel Classmate PCs in the notebook version will go as a 10-inch model at the start and the extra cost of a few Euros you can get this model as a touch screen variant. In the area of ​​performance you have time an Intel Celeron processor N2806 installed which technology is based on the Silver Mont / Bay Trail, as well as the latest Intel Atom processors.
The Celeron N2806 dual core offers a clock speed of 1.6GHz and the power consumption is 4.5 watts (TDP) indicated. In addition, also comes an Intel HD graphics chipset with 756MHz clock frequency and operating system Windows 8.1 are used. Other variants with Windows 7 and Linux operating systems to follow suit later this year.
The second model is also a new Android tablet PC has been introduced, which will advance as a 10.1-inch device. Here you will find an Intel Atom Z2520 dual-core processor with 1.2GHz clock frequency before, either 1GB or 2GB of memory and the internal memory can hold up to 32GB. On the front and back can be found in front of cameras and the built-in battery is designed to support a term of up to 12 hours. The operating system Android 4.2 "Jelly Bean" will be used.
The technical data / specifications / data sheet of the Intel Classmate PC notebook:
· 10-inch display (Optional Touch Screen)
· Intel Mont Silver / Bay Trail Technology
· N2806 Intel Celeron dual-core processor with 1.6GHz clock speed, 4.5 Watt TDP
· 756MHz Intel HD graphics chipset
· Windows 8.1 operating system
· Linux / Windows 7 versions in planning
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 Intel Celeron N2806 @ 1.60 GHz 
Phoenix Technologies Ltd. MPBYT10A.88C.0029.2014.0530.1440
Problema: No da imagen luego de modificar la BIOS
Se logra desbloquearla cambiando el chip TPM y los 2 chips de la BIOS
https://en.wikipedia.org/wiki/Trusted_Platform_Module
https://en.wikipedia.org/wiki/Trusted_Execution_Technology
Sacar la parte superior de la carcasa:
Sacar el teclado, que tiene cuatro trabas las cuales las haces hacia atrás y vas levantando el teclado pero con delicadeza no vayas a sacar las teclas y debajo tienes el flex el cual debes levantar la pestaña que hace presión, también hay una chapa algunas se corren hacia la izquierda y salen otras tiene un tornillo a cada extremo los retiras y levantas la chapa después tienes varios tornillos (6-8)
Sacar la placa: fíjate que tenes de la parte de atrás por debajo dos gomas que cubren los tornillos sacas estos con cuidado y con la ayuda de una punta plana vas sacando la base de la pantalla y bueno observa bien, espero te sirva. Claro esta es para las que tiene dos Gb. de ram. La otra de 1 Gb. es mas simple sacar la placa saca tonillos de la parte de abajo y los que están debajo del teclado y ya puedes sacar la carcasa y quitar los tornillos que sujetan la placa y todos los flex que están conectados como también el wifi.
http://drivers.for.intel-corporation.intel-powered-classmate-pc.driveragent.com/24968264430377/Microsoft-Windows-8-1-x64-Pro 
https://downloadcenter.intel.com/es/search?keyword=INTEL+CLASSMATE+PC
https://downloadcenter.intel.com/download/26538/Intel-Education-Theft-Deterrent-root-CA-Server
https://en.wikipedia.org/wiki/Classmate_PC
http://compgene.blogspot.com/2009/10/classmate-pc.html
Note: The term device is used to refer to Intel® Education Tablet and Intel® classmate PC.
----------------------
Terms Definition
  • Hardware ID A 12-character string that is unique for each device.
  • Boot Tick A hexadecimal number that increases by 1 after the Theft Deterrent client applies a package from the server successfully.
  • Provision Number (S/N) A 20-digit hexadecimal number generated from the Public Key of the Theft Deterrent server. 
http://www.taringa.net/comunidades/desbloqueonetbook/9003240/Aporte-Act-15-11-Intel-Theft-Deterrent-Server-2-X-3-X-4.html
Bootear un linux ubunto x64 en un pendrive. Meter el pendrive > conectar el netbook > apretar repetidamente SUPR y F9 > tocar las teclas de direccion un poco y aprete enter varias veces, espere un poco y aparecio el logo del sistema operativo para comenzar la instalacion.
Como ven lo importante es que anda
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la solucion, tienen que tener en cuenta que cada Bios tiene su propio software, por lo menos la que posteo, es para las canaimas con el bios "EF10MI2"
http://www.taringa.net/comunidades/venezolanos/9517475/Ayuda-Problema-de-Arranque-de-Canaima-ef10mi2.html
Buenas, logre instalar Windows 8.1
Primero instalen la BIOS de intel https://downloadcenter.intel.com/es/download/23839/ cambian el nombre del archivo MP0021.CAP a BIOS.CAP, la meten en la raiz de un pendrive y estando totalmente apagada presionan "Fn+R", sin dejar de presionarlo conectan el cargador hasta que comience a parpadear el led de encendido y luego la prenden, esperan un momento dependiendo de la velocidad del pendrive y los deberia mandar a la EFI Shell, si no les funciona el teclado (Como a mi me pasaba) Conectenle uno por usb, sirve bien, yo utilice incluso uno inalambrico porque era el que tenia, escriben "exit" en la consola y hay dos posibilidades, que les salga un menu de booteo
o que simplemente se quede en negro y haga boot, en el caso de quedarse negro en el mismo pendrive donde metieron el BOOT.CAP tenganlo preparado con windows 8.1 grabado con Rufus en GPT (O cualquier sistema que les sirva, pero esa version de windows principalmente porque permite desactivar el Secure Boot que tanto problema da) y les iniciara la instalacion, de ahi buscan como desactivar el secure boot y el uefi
PD: Dentro de la instalacion tampoco sirve el touch asi que se las arreglan con teclado o le instalan un mouse usb tambien https://youtu.be/KQPsLc6BDl0
---------------------
la posible solución es hacer lo mismo que muestra el vídeo, sólo que usando la bios "Phoenix MPBYT10A.88C.0029.2014.0530.1440"
https://mega.nz/#!q8ph0ATa!dOGrENawrywbBrL6AJ8xRK1VWLcaYcD5sOXtkQyxGEE
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Con un programador basado en CH340, Si manejas arduino, puedes hacerlo tambien, aunque un poco mas lento, lo compras en ML y te regalan los binarios para unlock 
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tiene 1 sola solucion:
 sacar el chip del BIOS. cambiarlo o en su defecto si tienen liberador flasharlo.
lo que hice fue comprar un chip de la BIOS nuevo, desoldar el que tenian y soldar uno nuevo!! problema solucionado esas netbook tienen un sistema de proteccion que no deja hacer ninguna modificacion en el setup.(conclusion no hay que entrar al setup)
http://listado.mercadolibre.com.ar/grabador-de-memorias-spi

Tuesday, May 9, 2017

Windows Update Installation Failure 80240020

https://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install/windows-update-installation-failure-80240020/d695e827-9774-4e10-8972-df8d51a7bb51?auth=1
This is an expected message indicating that when installation begins it may require user interaction.  This is the largest software upgrade event ever and we’re managing it so everyone has a great experience. We recommend waiting until your PC receives a notification to upgrade, and then following the instructions provided. 

Please note that there is no problem with your reservation or upgrade download. The upgrade download is not corrupt as some have stated, and you will be notified in the coming days or weeks when your device is ready to upgrade.

If you are very eager to upgrade, tech savvy users with the above message can modify the following registry key to install immediately. 

Warning:  Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur. 
  1. Locate the registry key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\OSUpgrade]
  2. It should exist, but if not, create it.
  3. Create a new DWORD (32-bit) Value with Name = "AllowOSUpgrade” (without the quotes), and set the Value = 0x00000001.
 Once the registry key is modified, close and reopen the desktop Control Panel, go to Windows Update and check for updates.  You should now be able to click the Get Started button to upgrade to Windows 10.  Note: Windows 8.1 users must go to the desktop Control Panel, and not the modern Windows Update UI.”

Tuesday, March 7, 2017

VIA HD AUDIO WINDOWS10

https://www.driverscloud.com/en/services/GetInformationDriver/57959-317792/via-via-hd-aud-v11-1100e-01282016zip
https://www.youtube.com/watch?v=Zw6fWveM22Y
http://download.viatech.com/en/support/driversSelect.jsp
https://answers.microsoft.com/en-us/windows/forum/windows_10-hardware/via-hd-vdeck-doesnt-work-on-windows-10-anniversary/d80cb779-f790-4056-bc84-fba0c95e41fe
https://answers.microsoft.com/fr-fr/windows/forum/windows_10-update/hd-vdeck-ne-va-plus-avec-windows-10-r%C3%A9solu/111b9d4c-6db0-4fb2-baf9-036e4c0b9955
https://www.youtube.com/watch?v=UZziynSSe-o
https://www.reddit.com/r/windows/comments/3ftdkj/windows_10_via_hd_audio_driver_fix/
https://support.microsoft.com/en-us/help/3073930/how-to-temporarily-prevent-a-driver-update-from-reinstalling-in-windows-10
https://www.reddit.com/r/windows/comments/3ftdkj/windows_10_via_hd_audio_driver_fix/
I'm using an ASROCK H61M-HVS with VIA HD onboard audio. Noticed that the default drivers windows installs for it are completely fucked. Enhancements don't work at all, and it keeps defaulting to headphones (front jack) even when you only have speakers plugged in.
To fix;
  1. Right click your start button, click system, and then go to advanced system settings
  2. Go to hardware tab and go to device installation settings
  3. Click no, then click Never install device software, then click okay.
  4. Open Device Manager
  5. Go under the sound field, select VIA HD Audio, and uninstall the driver, then restart your computer.
  6. Go to https://support.microsoft.com/en-us/kb/3073930 - download the .diagcab file. (Windows 10 has removed the ability to blacklist updates without using this file)
  7. Go through the steps and choose to ignore the VIA HD Audio update that is queued up.
Congratulations, your sound drivers now work properly.

Update for Windows 10 Threshold - 15NOV15
  1. Open device manager
  2. Go under Sound, Video, and Game Controllers
  3. Open VIA HD Audio, click uninstall
  4. Click action, scan for new hardware changes
  5. Wait for VIA HD audio to show up again
  6. Open VIA HD Audio, go to second tab
  7. Rollback drivers
  8. Open wushowhide
  9. Blacklist VIA HD Audio update