HTC Desire S S-OFF hboot 2.00.002

Posted: 2012/08/20 | Author: | Filed under: android | Tags: , , , , , | 8 Comments »

How to downgrade the hboot in order to be able to use revolutionary.io. The main source for this post was an article on miui-germany.de. You will need adb and fastboot. If you don’t want to install the full Android SDK you can download them from miui-germany.de or from here.

1. Put the phone in debug mode:
- disable fastboot Settings -> Power -> Fastboot or Settings -> Applications -> Fastboot.
- enable USB debugging Settings -> Applications -> Development -> USB debugging.

2. Unlock the bootloader:
- you will need to login on htcdev.com. If you don’t have an account create one.
- go to www.htcdev.com/bootloader.
- choose All Other Supported Models and follow the instructions.

3. Root and change version:
- start the phone in fastboot mode and connect the usb cable.
- run fastboot oem lock. Reboot the phone.
- download zergRush from miui-germany.de or from here.
- extract the content of zergRush.zip in the same folder as adb.exe.
- run
adb push zergRush /data/local/tmp
adb push misc_version /data/local/tmp
adb shell chmod 777 /data/local/tmp/zergRush
adb shell chmod 777 /data/local/tmp/misc_version
adb shell /data/local/tmp/zergRush
At this point the adb shell should close and restart with root permissions.
- run adb shell /data/local/tmp/misc_version -s 1.27.405.6.

4. Downgrade hboot:
- download RUU_Saga_HTC_Europe_1.28.401.1.
- run the RUU and follow the instructions on your PC screen.
- after 5 – 10 min the RUU will install Android 2.3.3, HBOOT 0.98.0000, S-ON.

5. Go to revolutionary.io and follow the instructions here to S-OFF your phone.

Self signed certificate, fast and easy

Posted: 2011/11/30 | Author: | Filed under: linux | Tags: , , , , , , , | Leave a comment »

Use certtool instead of openssl. It is less flexible but much more user friendly.

1. Installation:
Certtool is part of GnuTLS. On debian-based distributions you have to install the gnutls-bin package.

2. Create a private key:

# certtool -p --outfile server.key.pem

3. Generate the self signed certificate:

# certtool -s --load-privkey server.key.pem --outfile server.crt.pem

You will get a prompt to enter various informations required for a certificate. For a server certificate you only need to fill common name with the server name (e.g. http://www.server.com) and validity period.

For some applications, like openvpn, you may need your own certificate authority (CA). These are the steps required:
- create a CA key
- create a self signed certificate for the CA. Say yes to the questions: “Does the certificate belong to an authority?” and “Will the certificate be used to sign other certificates?”
- create a key
- create a certificate using the CA key, CA certificate and the above key. For openvpn the common name is the user name.

# certtool -p --outfile ca.key.pem
# certtool -s --load-privkey ca.key.pem --outfile ca.crt.pem
# certtool -p --outfile user.key.pem
# certtool -c --load-privkey user.key.pem --load-ca-privkey ca.key.pem --load-ca-certificate ca.crt.pem --outfile user.crt.pem

Cisco vpn client on Linux

Posted: 2011/11/28 | Author: | Filed under: linux | Tags: , , , , | Leave a comment »

These are the steps required to instal the Cisco vpn client ver. 4.8.02.0030 on Ubuntu 11.10 (it should work on any kernel above 2.6.38):

1. Download the necessary software:

- Cisco vpn client.
- patch 01. Get details about this patch here.
- patch 02. Get details here.
- optionally patch 03. This is a patch I wrote and it enables dkms for building and installing the cisco_ipsec kernel module.

2. Apply patches:

# tar -xzvf vpnclient-linux-x86_64-4.8.02.0030-k9.tar.gz
# cd vpnclient
# patch -p1 < ../vpnclient-01-a-fseitz.patch
# patch -p1 < ../vpnclient-02-joergensen.patch
# patch -p1 < ../vpnclient-03-dkms.patch


3. Install:

# ./vpn_install

 

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