CH/A is the national bank, ZP/A is the Hong Kong bank, KH/A is the Korean version, LL/A is the American version, DN/A is the German version, TA/A is Taiwan, ZA/A for Singapore and Malaysia, AB/A for the United Arab Emirates, RS/A for Russia, GR/A for Greece, IP/A for Italy, PP/A for the Philippines, FB/A for France, C/A for the Canadian version, and X/ A is the Australian version, B/A is the British version, F/A is the French version, J/A is the Japanese version, and Y/A is the Spanish version.

Extended information:

Except for the Chinese version of the iPhone, such as the US version, the British version, the Singapore version, the Japanese version, etc., as long as they are not sold in China, they are collectively called non-national iPhones. The official version of iPhone.

For example, the Chinese version of the iPhone has Chinese characters and the 3C certification mark printed on the back of the phone. 3C is a compulsory product certification system stipulated by the Chinese government in accordance with relevant WTO agreements and rules. Therefore, as long as you can find the 3C certification mark, you can determine whether it is the national version of the iPhone. For example, the non-National Bank version of the iPhone will have the logos of different voice and certification agencies in each region printed on the back.