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Segway General Discussion General discussion related to any model of Segways, miniPROs, or Ninebots. Please do not post non-Segway technology posts here; use the technology forum instead.

Old 12-31-2020, 09:23 AM   #1
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Location: Boston, MA
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Default ES3 Error Code 42 & 21

New to the Forum - Ninebot ES3 purchased in March 2020 - getting error code 42 & 21 - works fine without the external battery installed. Purchased new battery from Segway thinking the external battery had gone bad but didnít make a difference. So must be something with the connection to external battery? Any ideas or suggestions on how to resolve this?

Had a similar issue with my other ES3 recently but since I purchased that one new I wa able to send it in under warranty and they fixed it but didnít send along any notes/commentary on what they did to fix it. BTW Segway support sucks!!

Help is appreciated!! Happy New Year!!
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21-42error, es3

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