When I couldn't get my C3 to charge up (and before H2O suggested the reset trick), I sent a question about warranty service to Colorful in Germany. Check out the (short) answer about my issue (totally unhelpful) and the longer reply re something I didn't even ask about. Note also the comment about "unregistered" firmware.
"You can use a charger from older RIM Black Barry (2006 Edition) The connector is the same.
About the RMA:
A lot of Colorfly C3 and C4 in US market sold from third hand Hong Kong Online dealers directly to consumer without payment of TAX, VAT, MP3 licenses and without payment for disposal of old electronic equipment. It is an illegal issue ! In fact we have a big problem with tax and VAT evasion in different local areas.
The user has a subsequent payment of all charges and must pay a lot more against legal order from local dealer when customs authorities open the box. In Europe Union more than 80% of goods from Asia region will be checked from authorities. If the sender specifies a false invoice the customs confiscated the goods for smuggling. Due to strict controls, it's not worth to import illegally. I suppose that the US import control system works nor so strictly.
We can’t handle RMA services for this items. We get in trouble with customs authorities because illegal imported. All charges are determined by customs and in worst case we must pay for repaired goods 30% of original import price additionally. On other hand these Hong Kong dealer destroy the margin of local operating HIFI sales channel, so we decide to stop all support of unregistered Colorfly C4 including firmware update.
When user enter an unregistered serial number for Colorfly C4 firmware update at our web site http://www.colorfly.eu/download.html he will get following page:
http://www.colorfly.eu/forbidden.html
Solution:
In line with authorities (Each country has the right to take taxes for imported goods) we prefer to build in each region a local based selling system with well after sales service and support of customer. In my mind it is impossible to arrange item change at RMA issue in a short time when customer stay at the other end of the world.
Regional local based selling structure (stationary at shops or online by region) have a longer breath and it is continuous business. The Colorfly is an expensive niche product and the most of customer prefer better support conditions with the possibility to catch there HIFI dealer at the local area in any cases of after sales support.
Deal:
Please help us to create a local selling system in US. Please have a look for potential partner (HIFI dealer) around 50 miles from your home.
With a local partner we will find a solution for your C3 too.
Best regards Thomas
Thomas Weidner-Schulze"