APIM & IVSU Deep-Dive
Sync update was available on other countries where Waze was enabled on Sync3 v2.3 , out of excitement and curiosity I installed a non-standard Sync version which I downloaded (I forgot where). After flashing I was prompted with Navigation fault, this is where it gets crazy! Theory #1 (missing local GPS files) I dig through the Sync3 v3.0 update files which have some really weird file names GB5T-14G386-AA, JL7T-14G391-FB, etc…etc…I extracted each and one of them and found out that they are only shell scripts extracting images, digging through all of the files I didn’t see any updates on the “Navigation Application” nor updates on the map images, so my theory was correct there are still missing files on my system. Research #1: APIM is the control module which communicates from Sync3 system to the GPS antenna, and IVSU are the softwares sending communications to the APIM module. I took note of the IVSU versions on the Sync3 v2.3 then I fuzz this URL to get those files, fuzzing is a ...