Function failed.

I have been using this robot for few months only, but after that error and error keep happening:

  1. it doesn’t climb back to its charging station, it’s sticked right before it can reach to the base.
  2. it doesn’t return for recharge until the battery drained!
  3. the speed of vacuum it’s not consistent, sometimes it’s fast sometimes it’s slow sometimes it make very loud noise.

WHAT HAPPEN? I tot I bought a trustworthy brand. It’s disappointing, at all.

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