ZX-1 should be the Sony Walkman 35th-year anniversary model. I doubt if there will be further model named in ZX.

I have been to Tokyo in March. I can hardly find a ZX-1 in retail store. Finally I ordered on the Internet and paid by credit card. However, the store required me to present my passport and credit card copy so as to process the order (as I am a foreigner) So, you'd better search online for a...

I have ordered a case from Japan, and asked my friend for DIY the leather cover.      

  I have ordered the hard case from the same manufacturer. I want it to be opened like a book so I will DIY it with the case 

By the way, I've found a strange behavior since I bought ZX1 (OS v1.0). When there is no music playing, and the screen is off, there is signal (noise) coming out on the 3.5mm jack periodically. It seems there is something waking the machine periodically. After upgrading to OS v1.1 this still...

Yes, before getting rooted again, we can only do in this way.

No, the "weakness" is fixed after upgrade and it is impossible to root at this moment. I want a simple OS as well. I don't want Google+, don't need Bluetooth and NFC...

I have been using this but after upgraded the root is gone. But thanks! I see a new reply in this web page, saying that currently there is no root.     Thanks.

Excuse me, is there any root for the updated OS? Thanks.