参考网站https://github.com/n4ru/1vyrain/
该方法无需额外硬件，无需拆机，只需要按照说明制作刷机启动盘即可。该方法所支持的电脑列表如下：
- X230
- X330*
- X230t
- T430
- T430s
- T530
- W530
X330 machines are supported but not automatically detected. They are detected as normal X230 machines. The flashing menu has an additional option to flash a BIOS with the LVDS patch for machines detected as an X230.
所有操作需要删除BIOS里的所有密码。为了保险起见，可以操作”添加密码和删除密码”两次，确保BIOS密码彻底删除。另外所有都在UEFI模式下进行。在BIOS里，确认支持UEFI启动模式。
具体操作如下：
1、制作UEFI的U盘启动盘。
iso镜像文件可从网站 https://drive.google.com/open?id=1yusq98ja6NmI4G4txKVueFqY_ZEwaZvO 下载。
下载后用几种制作U盘的工具，例如：dd, Win32DiskImager, and Rufus (note you have to use DD mode)来制作启动盘。
2、降级当前电脑的BIOS版本满足刷机软件的需要。
所需版本的bios可以在网站https://github.com/n4ru/IVprep 下载，同时该网站提供了降级软件使用方法，如下：
Usage
Go into your BIOS setup. Navigate to Security -> UEFI BIOS Update Option. Set Flash BIOS Updating by End-Users to Enabled, and Secure RollBack Prevention to Disabled.
Make sure you are plugged into power while running this. You WILL brick if you lose power while flashing, guaranteed.
Boot into any 64-bit Windows install.
Run
downgrade.bat(NOT as Administrator – WinFlash64 should request admin on its own). The system will reboot and flash the BIOS region on your device. Voila! You’re ready to run 1vyrain.NOTE: Neither this tool nor 1vyrain will modify your EC. You are safe to flash your EC with the battery or keyboard mod at any time as long as you are on a version compatible with the EC mod (check compatibility here). Both IVprep and 1vyrain will only modify the BIOS region! You can safely use 1vyrain to update to the latest BIOS without losing your other mods!
以上是几点注意事项和降级BIOS版本的方法。
3. 刷机
电脑BIOS版本根据上一步降级后，用制作好的U盘引导系统。注意需要UEFI方式启动。
启动后依照屏幕提示进行操作。
Don’t be alarmed if your ThinkPad/ThinkLight power cycles a few times after a flash, or you get a CRC Security error. That is normal and will go away after another restart!
不要担心期间的一些错误提示，耐心等待所有操作完成，不要急于按电源键，否则会造成刷机失败。
刷机后，thinkpad 的白名单限制就彻底取消了。可以自如更换网卡等设备。