I am using V5 on my f240k, working buttery smooth, battery is better than stock. No SMS character issue. No Korean bloatwares. No signal dropping issue. I move from stock to v5. I did the following step:
1- Installed freegee cwm version 184.108.40.206 from play store.
2- Then boot in to recovery from freegee.
3- made a nandroid backup.
4- wipe data/factory reset.
5- wipe cache.
6- wipe dalvik cache.
7- Flash V5 (took 2 mins to install)
8- did not flash any baseband.
9- Again do wipe data, cache, dalvik cache.
10- Then reboot.
All worked. But only one issue I faced, Call with no voice, Signal drops frequently.
11- Then I reboot into recovery from freegee.
12- flashed f240k baseband from this thread.
13- wipe all again.
14- reboot and profit.
No problems so far, using it for 2 weeks. Thanks in million to developer. I really appreciate his hard work.
BEST ROM FOR LG OPTIMUS G PRO F240K.