Please DO NOT UPDATE YOUR BIOS
The Bios that you can find in this section are not updates, but new Bios of different versions of the same device model.You should only flash the Bios in case of problems with corrupt files and always with the specific files of the model and version of each device.
The use of incorrect files will produce a barking effect on your device.
We have observed that new users, just receive the new device purchased, perform a flash of the Bios and reinstall the system. It is a delicate process and in addition they will only be able to put the same Bios files that they already have and, if they use others because they are more recent, they will only get a brick of the device and that it does not turn on.
They should only flash the Bios in case Chuwi indicates that they should do so to solve a problem.