Knob,
Having proper backup of firmware, there is no risk to try to install a Teclast C260 firmware... I did it several times with a very bad machine I bought some time ago (some Zima I show in some post here, the device with the worse manufacture I've get in my hands). It never work, but by pressing the POWER button while plug USB it always recover, and I installed the original software without problems.
Rockchip devices are in no way fragile devices, they are very consistent as I have prove myself recovering my LDX LD-696 from any test I've done.
Finally, that Zima shit was replaced by the provider by a very good unbranded device that have all the characteristics of a Teclast, as soon as I loaded the firmware, the new device works fine and I gain lots of new functionalities, like managing of .APE, .FLAC and .FLV formats and FM.INI, beside the normal formats like .OGG, .MP3, .AVI, etc. this for the moment because Teclast is working all the time in add new functionalities.
In his case, new firmware ADDS new functions, like it will be managing of playlists in near future. You as a
www.teclasters.com contributor, know that there is lot of people that is using unbranded devices with Teclast firmware, taking advantage of a the company that developing good rockchip firmware.
It's hard to understand why somebody have to write in red letters against an option that only can give more benefits and good support to a user.
Again, having proper backup and a rockchip, risk is not so big, doing the proper action rockchip will never turn into a brick. :wink: