before installing MIUI, my SD had only one partition used to store personal data: no app2sd (or similar) before and no possibility to transfer the app on the SD. Now I realized that I can safely move the app from the internal memory and put them in SD. Note that I didn't create any new partition ... Could it be that MIUI created a new partition to be used as app2sd without asking me ? This is not a bad event: what I need to understand is how to change sd card. In the past, before installing MIUI, I had only data on SD, so a simple copy & paste from an SD to another was a good solution... But now I know that some apps are installed on the SD... so I suspect that the simple copy-paste will not be enough to migrate successfully from the old SD to the new one. Any ideas how-to migrate SD in this situation?