Note that the change discussed this time is that the voltage under the EMMC option will be changed from the default 3.3V to 1.8V. This adjustment is for the VCCQ voltage, which is the same as the function in the setting image below:
First, let’s talk about the result: The impact is minimal; it’s just a matter of adding one more point and subtracting one less point.
Why is the voting decided by everyone?1. Many newly released EMMCversion 5.1 chips only support VCCQ 1.8V, and selecting 3.3V will not recognize the chip.
2. Recently, some customers reported that the VCCQ voltage of the EMMC part of certain packaged eMCP(EMMC+DDR) chips is 1.2V, raising concerns about potential chip damage. Although practical tests show that both voltage levels do not damage the chip, it is always better to have a lower voltage to alleviate such concerns 
.Possible “issues”:Depending on the PCB version of the socket (below V2.5), if it has not been modified according to previous articles published on forums and public accounts;Different versions of the programmer software (not the latest version) may lead to some chips not being recognized, resulting in a TIMEOUT phenomenon, in which case you will need to manually select 3.3V. Most older chips also support 1.8V, so the impact is minimal.Some people may have comments about this possible adjustment due to not having encountered the new version of the chip: one is that “some older chips may require one more point,” affecting long-standing operational habits; the other is the misunderstanding that the old version works well, while the new version does not.“Smart recognition” – “EMMC” is designed to facilitate operations, so regardless of the brand or model of the EMMC chip, it can start from here without manually selecting the brand or entering the model.This kind of “change” is left to everyone to decide; convenience for everyone is the real convenience! Therefore, your vote will affect the ease of your subsequent read and write operations.