My LG V30's battery couldn’t hold a charge anymore, so I’ve replaced it. Pic of me taking it apart:
Finally, I replaced the back cover with an ebay blue colored one (it was black originally)
Its quite tough to capture the blue but it looks infinitely better than the black!
On the downside, my fingerprint sensor has stopped working. Forums tell me that other people have had a similar issue, seems like the connector’s pin bend while putting ot bac together. Maybe I'll open it up again and replace the sensor....