Relationship between 3G module debugging, testing, and product mass production (Please confirm)

Compared with the final product of mobile terminals, module suppliers are not updated quickly. Therefore, when selecting a new module, I think there are some things that can be referenced, this is also a summary after debugging several modules.

1. Check whether the software and hardware of the module meet the design requirements and support the functions required by the product. It is recommended that other companies use the product and have already produced the product. If the module functions are not complete, when the module company completes the function, it will help the module company to debug the module, and people will not pay for it, so it will be repeated, I always suspect that the other party has a problem. This is a very depressing thing. It takes a lot of time, effort, and money to make a final failover, and the project progress is delayed. Therefore, it is very important to eliminate interference from modules.

2. 3g module antenna proofing, the antenna sample should be confirmed in advance, the better, and should be paid attention to, it is best to conduct the module debugging on the premise that the call function is completed immediately, the antenna helps the next debugging, such as GPRS, so that software engineers can focus on the implementation of the software without interference from external factors. In addition, if the module antenna performs well, it also gives the customer a good impression,

3. Find out the main and secondary functions of the module, and struggle for too long in some secondary functions. It is not cost-effective to affect the project progress. In this regard, the testing team should be conscious. I think the signal strength and stability, the volume and sound quality of calls, and the speed of 3G networks are important. As for the MMS function, it has been completely weakened, in addition, teleconference is useless.

4. It is not cost-effective to serve most customers, understand the main needs of most customers, and pursue unimportant functions and parameters.

5. Any product has bugs during project promotion. If you want to change the bug, the user's requirements will change, and the software and hardware will also change. These changes will inevitably lead to defects, at this time, the primary and secondary principles should also be followed to eliminate bugs that affect user experience.