There are many image browsers in the Symbian 5320 section, you can go to the next one

As for encryption, I personally think that mobile phone lock is better. My Xiaomi 5 uses mobile phone lock. You can encrypt any file

Give you a reference to Symbian, you can go there

By the way, all software for mobile phone encryption must be signed before it can be installed. If you If you don’t have a certificate, go to Symbian to apply for one, then download the “Free Signature” software, sign the software and install it

If you don’t understand anything, you can ask me