MIB2 Bolero update process

I updated my Bolero yesterday and thought I would share my experience. I searched the Internet and only got bits of what to do and not fully.

What you need

An SD card formatted in FAT32

The update file.

A pc laptop with an unzip programme.

I started by downloading the update file to my laptop. I initially used winzip to unzip the files but I later found that didnot fully work. So I used a programme called 7zip. Free to download and easy to use.

I followed a lot of posts on various forums that said you unzip the file to the root of the SD card. What it doesnt say is that you need to copy the contents of the folder and not just the folder itself. (Once unzipped) So for me that was click on MST2_EU_SK_ZR_P0253T.  That will open and there will be lots of folders including a .txt file. Copy those directly onto the SD card. 

I initially unzipped the file directly to the folder and not the contents. That just left that one folder on the SD card. So when I did the update it didn't work and got stuck on the emergency bootloader screen. I thought I had bricked the radio as it would not read any files. That was until I did the above, then it worked fine...phew!!

I accessed the update screen by switching on the radio. Inserting the SD card. Holding down the menu button and selecting update. That then starts the process off. It took about 30 mins in total and you can do it with the engine switched on. The file updated 89 modules.

Afterwards I had a B021A fault code on the multimedia 5f control unit.  No matter what I did it would not delete. So I researched this and realised you need a new hex code to get the update accepted. After some research I came across a website which helped.

http://mib-helper.com/im-so-xory/?key=948

Using VCDS or OBDELEVEN you go into 5f control unit. Adaptions and then look for Confirmation of Installation change. Click into that and that shows a key. Normally 4 letters or figures. Mine was 3 numbers. You then copy that key into the link above and that generates a new hex key. Go back to the adaptions and enter that new key in place of the old one. Save it and the fault code will go away.

I hope it makes sense the way I have written it and thought it may help someone out who got a bit stuck like me.