[Q] CM12 fails with message : failed to verify whole file signature topic

Can some help me to install CM12 on Samsung S4 At&t 1337.

I tried both using TWRP and ROM manger, at the end it gives a message saying : failed to verify whole file signature and aborts and restart the phone back.

Can someone give some pointers on how to by pass the signature validation during installing CM12 on S4 At&t.

thanks,
Neon

[Q] Z3 dual D6633 problem with update OTA !!!!! (could not verify) topic

I have xperia Z3 dual D6633 with build number 23.0.F.1.82 and rooted it with giefroot_v3 then installed Z3-lockeddualrecovery2.8.2 without unlock bootloader my bootloader still locked.
I want to update the system via ota update center to version 23.0.1.F.0.96 after finish download it give me this message (could not verify). I tried a lot of times and tried factory rest same problem (could not verify) why?? :(
I want update system without loosing root and recovery and without flash it via flashtool I want just update it via Ota to the newer system 23.0.1.F.0.96 with size(134.7 MB only)..... :crying:
thank you for all...

Boot certification verify vs980 topic

When ever i try to turn on my LG G2 Verizon it says Boot certification verify Secure booting Error! Cause: boot certification verify. i cant get into download mode, Twrp, or anything. due to the fact that i cant get into download mode i cant flash stock system. Please Help.:mad:

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