Free (small) partition for storing serial number?

[jyijyi]

To reset userapp partition, you need to downgrade to R12 first

Wp76 root password

First of all, the command should be “swiflash -m wp76xx -r” instead of “swiflash -m WP76xx -r”. Next, I found that it is not working on R13. But in case you first downgrade to R12, it works!