Q：How to deal with the error code?
A：Fix it to the maintenance place immediately. If cannot be
resolved, you can go to the electric vehicle repair points repair it in a
timely manner.
QUALITY & WARRANTY
QUALITY & WARRANTY：
1、 Any quality problems in normal case and in guarantee
period, our company will responsible for the warranty
2、 The warranty time is 18 months from date of
purchasing.
OTHER ITEMS：
The following items are not belong to warranty scope.
1. It can not be demolished.
2. The damage caused by wrong installation or operation.
3. Shell is broken when display is out of the factory.
4. Wire is broken.
5. Force disaster (such as fire, earthquake, etc.) or natural
disasters like lightning, etc caused by fault or damage.
6. Beyond Warranty period.
VERSION CHANGE
The instrument instructions are the operating instructions of
common software version of Nanjing Bigstone Electronic & Technology
Co., Ltd. (V3.1 version). The instrument software version that using on
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