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DLPC6401: DLPC6401 use questions

Part Number: DLPC6401

using DLPC6401 to do. 45 1080P DLP projector, the main platform using RK3128, currently encounter a use problem as follows: Please help see if there is any solution.

1、Turn on the initial configuration screen rotation has no effect:

The boot directly configures 0X08 and 0X09 registers. Screen rotation is ineffective. We must first configure 0X00 for 1 and delay 200 ms , then 0 X00 for 0 and delay 300 ms, then 0X08 and 0X09 will be effective. But this configuration register will appear a result, that is, the boot rotation screen will encounter: Logo screen, to the test screen, then to the Logo screen, so as to affect the user experience effect, is there any way to initialize the boot rotation has been a Logo screen?

2. Start-up initialization configuration brightness 0Xcb register is not effective, need to boot 30 seconds (Android system boot), in the configuration of 0Xcb register will be effective, can you achieve boot-up configuration register brightness configuration?