1/On opening the POWER option the only button available is, GET A NODE DEVICE. clicking this brings up a black popup; app features down for maintenance and will resume soon, (abridged version) There is no other option.
2/The only way I can raise the ADD NODE BUTTON is to delete the wallet app, which has an old operating pnode linked to it, and start with a new install, which gets me nowhere after trying all the suggestions to connect a pnode, wifi, distance, location data, power down node etc! It adds an account ID of the new pnode but even days later will not bring up the node! This was why I asked for the desktop app!
Note, point 1 is response to your question! Point 2 was the original problem that raised the question!
Manual way, does that refer to the desktop app software? Which I found easier to use than these bloody phones!