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FAQ

  • Categories:Solution
  • Time of issue:2018-08-13 00:00:00
  • Views:0
Description:
Description:
Information
Unable to start?
Check if the battery is not installed or the battery installation polarity is wrong or the battery is dead. Remove the battery and reinstall or replace the same type of battery and pay attention to the correct polarity of the battery.
After the boot or during the operation, the crash and pressing a single button have no effect?
Whether the battery is ectopic (the machine has experienced a fall during use), check whether the calculator mode is wrong, whether the memory is cleared, remove the battery and reinstall and note
Polarity placement of the battery Correct, clear the machine's memory and initialize the calculation mode (operate in the order of operation shown in Table 1 below).
 
Show missing strokes?
Check if the machine has been damaged. If you put the machine on the desktop and gently tap the desktop level, turn it back on.
 
calculator mode is initialized?
Check if the calculator mode is selected incorrectly, whether the memory is cleared, the machine's memory is cleared.
 
whether the calculator mode is wrong?
students calculators ranging from primary school, junior middle school, to high middle school calculators.
 
clear the machine's memory?

We have passed the CE/ FC/ ROHS accreditation, and ISO9001 and ISO14001 accreditation.

Check if the machine?
Our biggest advantage is: very competitive prices without compromising on the outstanding quality.
 
clear the machine's memory?
We can make the packing neutral or print your own company’s logo or your customer’s logo on the products.
 
Whether the battery is ectopicr?
Every employee of " Tianyan Electronics" has a motto: our success is dependent upon your success.
 
Calculator error?
Check if the calculator mode is selected incorrectly, whether the memory is cleared, the machine's memory is cleared, and the calculator mode is initialized (operating in the order of operation shown in Table 1 below).

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