Thread: Garmin Zumo 660 in Aera 550

All aera 5x0 are basically the same device and that's why there's only one firmware for all of them.

Let's just check some things before I go to the trouble of making a combined firmware for you. As you'd already seen, aera has 4 additional firmware regions used over zumo. I want to see if the additional regions populated by the aera firmware are also available on the zumo in it's current configuration. Both have unit software fw_all in the standard rgn 14 (hex 0x0E) of course, but due to their dual-purpose as aviation and automotive devices, aera devices have a second unit software fw_all2 in rgn 85 (hex 0x55) along with 3 other components, which RGN_Tool doesn't specifically identify naming all as 'unknown', in rgns 253, 254 and 250 (hex 0xFD; 0xFE; 0xFA). So first let's see if we can dump those additional regions 253, 254 and 250 from the zumo. There are usually 255 possible regions in Garmin devices so those additional components are right at the end. We may as well backup it's nonvol region 41 while we're at it, it's handy to have that anyway. Look behind the spoiler for a guide:

Spoiler:

• Obtain a clean SD card and unzip Garmin.zip directly to it: [Only registered and activated users can see links. ]
• Ensure the zumo is fully OFF, insert the card and turn it back on. If battery is low connect it to a power source which will power it up.
• 'Loader' will show on the screen for a short while, don't turn it off while that's happening but wait until it reboots fully.

Remove the card and look at it, hopefully there will be be 5 files in the root alongside the Garmin folder: 41.bin; 85.bin; 150.bin; 153.bin and 154.bin. Also in the 0924 folder there will be a file "update.log". Copy the 41.bin file to a safe place and keep it for as long as you have the zumo. Compress the other 4 bin files (or whatever is there) along with a copy of update.log to a zip or rar file and upload it please. Don't include 41.bin because that contains private info and codes.