If you want to play with Huawei devices, then you must have some basic tools and knowledge of boot pins. Earlier we have unlocked Huawei E5573 routers of different countries with the help of boot pin and ground. Boot pin also helps to recover the dead modems / routers.
Today, we have a big collection of various devices boot pins. Some are live images of the device, while some are just diagrams. If you have the device and want to help us, just send me live image to replace the diagram.