v9 trouble

[wenqi953]

Hello everybody,I have a trouble, it is:
The original version of my v9 is R263313_AS_U_A0.03.21R,today I put 263313_AS_U_A0.03.24R2 on my phone.
After the test I want to put back R263313_AS_U_A0.03.21R on my phone , but its not working, That firmware might be sticky !

I flash R263313_AS_U_A0.03.21R R263313_AS_U_A0.02.07R2 R263313_AS_U_A0.01.1BR, but they do not working, phone will not boot, has been displaying the screen:" BL 05.80 S/W R263313_AS_U_A0.03.24R2"

How do I ? I really do not want to restricted ! Is it only waiting for the updated software?
I would like to return to my original version , please help me! Thanks

[fldodger]

Reflash your backup

[wenqi953]

Reflash your backup

Thank you
but to me, V9 does not work .

24R2 a third-generation systems, can not seem to demotion to the second generation system 21R.

There are other feasible ways ? :eek: