Sorry for disappearing so long on this forum. I was busy working on our new player.
I have to clarity that I'm not a professional representative for the company. I'm just a guy with Broken-English from the company product team and I'm here to learn any issue regarding Rockbox. Many other issues are beyond the reach of my knowledge. I can help you transfer the issue to the support. Or you may contact firstname.lastname@example.org
A12 is our first step to try clip-style music player. It is good for gym people and is not good for "hardcore" user especially sansa clip user. We are a new company for music player and we have to learn things from mistake.
Our new player with whole new hardware is available soon. A12, A02, A18 and Sandisk Jam are using the same chip which causes many issues which we couldn't resolve. The new hardware will solve many problem such as:
1. Bluetooth connection issue.
2. playlist order
3. gapless playback
4. combining files from internal memory and memory card
If you are annoying by the issuea above, I suggest you wait for the new one.
Thank you for your concern.