R1-V1.5.4.24028.zip 	Published Date(M/D/Y) 	2015-10-22
1.Modify the LCD password cannot change input method bug.
2.Solve the frozen issue when the network initialization finish
Notes 	If the current software version of Rainbow2 is V1.4.0.xxxxx, please first update Rainbow1 with the interim software“Rainbow1-V1.5.0-interim-version.fw”

Rainbow1-V1.5.0.20396.fw
1. Solve the reboot failure issue.
2. Add the debug feature.

Rainbow1-V1.5.0.19641.fw
1. Improve update method.
2. Bootloader,software and driver files are packed into one file named software and can be updated at one time.
Final software for Rainbow1.Update the interim software “Rainbow1-V1.5.0-interim-version.fw” before updating it.

Rainbow1-V1.5.0-interim-version.fw
1. Improve update method.
Interim software for Rainbow1. It should be updated before updating “Rainbow1-V1.5.0.19641.fw”.

Rainbow1-v1.4.0.17692.fw - 22/05/2014
1. Fixed the one way voice issue that occurs during conference
2. Fixed the phone crashes when dialing under domain url environment
3. Fixed the phone crashes when redialing under domain url environment
4. Fixed the one way voice issue that occurs when connecting with the ZTE switcher
5. Fixed the phone crashes after redialing for certain times 

Rainbow1-v1.4.0.17578.fw - 14/05/2014
1. Optimized the transfer logic and fixed the problem that the phone received redundant BYE message.
2. Optimized the multi-language display of Chinese