Archive

Archive for July, 2006

Hack the Motorola Razr V3 (1)

July 28th, 2006 No comments

Downgrade Boot Loader from 8.26 to 07.D0 with RSD Lite only

  1. Why do we want to downgrade Boot Loader?

    The 8.26 boot loader protects sections of the firmware from being overwritten while the 07.d0 boot loader allows them to be overwritten. To make some changes to the firmware, e.g., changing the splash screen, you have to be able to overwrite a normally protected section, thus the need for the lower version of the bootloader.

  2. How to downgrade Boot Loader?

    There is a thread on www.motox.info discussing how to downgrade boot loader using RSD Lite only. Basically what you do is to flash a .shx to your Razr V3 using RSD Lite and you are done. The thread can be found here. Below is a quote from the thread:

    A fellow Modder on this site ( who shall, by his own request, remain nameless) found this item on a Russian website. It is a .shx file, written by Archy, which claims to downgrade bootloader 8.26 to 07d0 on a V3. The finder tried it on his own V3 and reports that it worked perfectly. I, personally, have tried it on my own V3b, after making a small alteration to the file, and I can report that it worked perfectly…

    The flash file (.shx file) can be downloaded here.

How to create a proper PDS backup using Flash Backup 2.62

Using Flash Backup 2.62:

  1. Select the backup tab.
  2. Change the backup mode to PDS backup.
  3. Put a check mark in the disable compression box.
  4. In the bottom drop down menu select “select another” and then locate a file called “32 MB (08A0).ldr”.
  5. Then click “Create” button and wait for this to finish (it should take about 15 seconds total to create).

Once done burn this to a CD and keep it in a safe place as well as saving it somewhere on your computer where its easy to find in an emergency.

Categories: RazrV3 Tags:

Pro/E 小火车(3)

July 20th, 2006 No comments

OK,又琢磨了一阵子,知道怎么弄动画了。在火车车轮上添加一个servo motor,设定motor的转动速度。然后在mechanism里新建一个kinematic analysis,设置好转动的时间。运行这个analysis,车轮和连杆就能动了(参见下面的动画)。

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Pro/E 小火车(2)

July 19th, 2006 No comments

豆豆有一个精致的小火车头。它以墨绿色和金色为主修饰色,加上比较古朴的设计,给人一种经典的感觉。豆豆非常喜欢这个小火车头(见下图)。

Train Model

碰巧这两天我在巩固学习Pro/Engineer,于是干脆照着它的样子在Pro/Engineer里面建模,画出零件,然后装配起来成为一个完整的小火车。别看它只是个简单的小火车头,各种零件加起来也超过四十个了(见下图)。

ProE Train

尽管我在Pro/Engineer里画的小火车和实物很像,但是还有一些小的地方需要改进。比如火车前面的“大扫把”(注:豆豆语)是比较复杂的曲面,我还没有学会如何模拟。再比如模型的材质可以选得更好一点,然后render得更漂亮一点。这些都等我学会以后再改进吧。另外,火车轮子和连杆是能够运动的,等我有时间了做个动画演示一下。

Categories: ProE Tags:

Pro/E 小火车

July 12th, 2006 No comments

哈哈,豆豆缠着我让我在Pro/Engineer里给他画了个小火车:

ProE Train
Categories: ProE Tags: