If anyone is keen to see how to replace a motherboard on the Ecovacs Deebot Ozmo 950 (same for T5), here's a video guide on how I did it: https://youtu.be/jlsOlYYFl8k. If the link doesn't work, search YouTube for "Ecovacs Deebot 950 Stopped Working! How to replace MOTHERBOARD and make it work again!!". The motherboard replacement cost me $90 AUD from AliExpress. Basically, my Deebot 950 was no longer charging despite me installing a new battery replacement, and when I'd turn on the robot, it would back out of the charging dock and then simply turn off (deactivate), and there was nothing I could do. The motherboard is the problem. I replaced it myself and now it works like brand new again. Hopefully my video guide helps others. I was literally on the verge of throwing this cleaner into the rubbish thinking it no longer works.... but gave it one last attempt to fix and glad I did! :)