Troubleshooting Method for Shielding Box

When the shielding box we use malfunctions, we first need to check whether the absorbing material inside the shielding box is damaged. Generally speaking, the absorbing material is relatively easy to be damaged. After confirming that the absorbing material is undamaged, we need to check the filter next. Due to the many filter interfaces, we need to use the exclusion method to test one by one. If there are no issues with the filter, we need to check if the shielding box can be tightly covered. If all the above issues are resolved, Guanxiong Da, a manufacturer of mobile phone flip cover shielding boxes, suggests seeking professional maintenance personnel to handle them. This not only causes secondary damage to the shielding box, but also ensures one's personal safety!