G900F 5.0 to G900T topic

There is a way to be able to flash the Android L From the G900F variant firmware by taking the OTA of 5.0 and extracting it to get all the files and only flashing the AP Portion of the file NOT the entire md5 file but The AP file I'm not skilled enough to extract the ota so I was wondering if anyone could do it ? It was done for the Galaxy note 3 so why can't it be done for the s5