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- Why the altitude is different in iGS20E ?
- iGS20E / iGS130 Backlight Can't Work
- iGS618 / iGS620 Can't Be Recognized by a Computer
- iGS20E/iGS130 Can't Show Distance/Speed
- iGS130/iGS20E Shows Incorrect Time
- iGS130/iGS20E Can't be Recognized by a Computer
- iGS130/ iGS20E Rebooting, Frozen, Stuck or Locked-Up