First off, this forum is dedicated to the use of the custom 'Deviation' firmware for Walkera Devo transmitters. This is our primary goal, and we have the most expertise in addressing problems with Deviation.
However, there are a lot of Walkera users here, and many of them have knowledge and will be willing to help with stock firmware questions. Those questions should be posted in the 'Stock Firmware Help' category.
Please understand that we have a lot more collective experience with Deviation, and you may not get the kind of support you want.