For A1 mini, all printer logs are saved to the micro SD card and placed in the "logger," "recorder," and "corelogger" folders under the root directory of the micro SD card. There is no need to worry about the log filling up the micro SD card because the total size of all files will be limited to 600-700 MB.
The essential log contains information about temperature, motion system, wifi/camera/communication with cloud/printer status, etc.
Logs for locating problems such as print quality, and abnormal stops in printing
Logs for recovery of the AP board (may not exist).
The printer can eject the micro SD card, just like we eject the micro SD card on a computer.
When you need to remove the micro SD card from the A1 mini, please select eject in advance; otherwise, frequent hot plugging and unplugging may cause the micro SD card to be damaged.
The A1 mini's log files can be uploaded using Bambu Handy through the network, just like the X1 series. The upload speed should be approximately 150 kbps when the network conditions are favorable. When logs are uploaded, you can choose a time frame. If necessary, you can select a specified time period for the logs to narrow the overall amount of logs sent and decrease upload time.
This page focuses more on where and how to obtain the A1 mini log files. Please check the following two articles for more information on creating a ticket and uploading log files.