Hi guys,
I swapped out the battery in my wifes Huawei P9 last night but now the vibrate function has stopped working. From the reassembly video ([guide|65025]) it looks like this is just a small button cell battery with connectors that sits underneath the main phone battery. Is it most likely a case of this having broken contact when I was reassembling? Don’t have the phone in front of me so can’t check until later :D