23 hours ago, philf said:Hi..I have a AVIC-MRZ05 trying to see firstly if the language change you described above for MRZ99 will work for mine. I have got to testmode but am not sure how to back up USER file..could not find reference on here how to do this. next question is I looked in USER and seem to have both PRG0 and PRG1..(I attach some photo's. I also see from other posts that pasting new file may be an issue....If you could help with step by step process on what I need to do that would be great. I have copied the zip file you have link to on SD card already..(though did not seem to show on screen when I put it is SD slot...my be when I am in testmode it will be seen..but not sure how to retrieve it from SD card and paste it on system....If anyone has done this on AVIC-MRZO5 it would be great to know it can be done and step by step process. many thanks
Many people including me, have already changed MRZ05 to english. You only need to read, understand and apply the procedure carefully.