I am also having this issue with my Flysky FS-it4. I emailed Jerry yesterday and received this response @ 2:15am
Dear Sir,
We are arranging the IC chip for this issue and i will send you one later.
Best regards,
JY
skype: jerry_flysky
TEL: 086-1866 5882 728
SHENZHEN COLCO INDUST DEVELOPMENT CO. LTD.
FLYSKY RC MODEL Co.,Ltd