It is related to necessary permissions, The solution method will differ according to the version of Android you are using, but go to Settings, Electrum application and give the required permissions (access to phone data.)
File storage permission is enabled by default on the app setting, I even checked this before I post this topic. Only permission to camera is not enabled, but camera has nothing to do with storage. Although, I enabled the camera's permission also and still the same error. All permissions enabled and yet the same error.
PIN Code is the method that the wallet uses to sign transaction and therefore without it you may not be able to sign a transaction.
You mean after the wallet is recovered from file backup? I just want to be sure. And also see the posts of others to confirm this.
you can cancel PIN Code from the Settings page but if you miss your wallet open, anyone can send from it.
The pin is off by default, you will have to enable it first.