In fact, the signing of the POS protocol is not a simple start-up report, it is to strengthen the security and reliability of the entire interaction. The POS machine has two purposes: first, the link host proves that the POS device is legal, and the second is to download the latest work key. The POS device hardware chip sets a device ID and a key at the factory. The check-in means that the POS device initiates a check-in request to the server, and then causes the server to return three work keys for encrypting the three information of the bank card transmitted by the POS to the server. The three work keys are encrypted by a key (also available on the server side) within the hardware chip of the POS device.
Isn't it possible to sign in with a POS machine? Yes, but the POS opportunity is particularly slow, and the risks are borne by yourself. Still, click on the check-in button, there is no need to be yourself.
Since the POS machine is so important, how do you deal with the failure of the sign-in?
The failure of the POS machine sign-in is nothing more than a communication failure and a POS machine failure. The solution is as follows:
1. Fixed POS machine: connect the telephone line connected to the POS machine to the telephone, then dial your mobile phone to check if there is noise or arrears. If it is resolved in time, if it is not, the communication port of the POS machine may be damaged. Contact the POS machine agent in time for processing.
2, mobile POS machine: take the machine to a wide, signal-good place to sign in, at the same time check whether the SIM card is owed, if both are no problem, then the SIM card slot may be damaged, contact the POS machine agent as soon as possible to solve .
The sign-in plays a very important role in the security of the POS machine itself. The POS machine industry has always emphasized security. Don't wait until the unfortunate event arrives to hate the night, develop good habits, insist on sign-in, start from you and me.
Tianbo Intelligent Hardware focuses on building open intelligent hardware customization solutions, including handheld Android smart terminal series, desktop Android smart terminal series, and cabinet Android smart terminal series. Provide one-stop smart hardware customization solutions, and have successful cases in catering retail, identity, financial payment, O2O and other industries.
Tag: Tianbo intelligent hardware customization +, Tianbo custom +, intelligent POS machine, handheld mobile intelligent POS machine, Android smart POS machine, POS machine sign-in, POS machine why sign in, POS machine sign-in failed
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