Please tell us some basic information before asking for help:
- Model Name:ZB602KL
- Firmware Version:424
- Rooted or not:NO
- Frequency of Occurrence: ?
- APP Name & APP Version (If your issue relates to the app): ....
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
Would anyone know why version 424 can't update to version 429 by putting the file in the device's internal memory?