Hello. I've read this and many other posts and still can't find something that would help me get an updated map to work on my GPS. The GPS I have came with the car I bought, factory installed, in dash (it is a Honda Navigation unit, which has DVD, radio, GPS, USB).
The Navigation system is a Garmin, but it stores all of its map information, voices, vehicles, etc on an SD Card. (The SD Card contains the gmapbmap.img, gmapprom.img, Gmapprom.unl & gmaptz.img files in the Garmin folder, it also contzaind more files in that folder as well as several other folders like Fonts, Help, Voices, Vehicle, POI, etc).
Since I was trying to get an updated map but didn't want to mess up the SD card, I made a RAW copy of it into another SD Card, but when I put that copy into the unit, I get a cannot read map data, check SD card message. So I guess the map is locked to the SD Card.
I deleted the gmapprom.img & Gmapprom.unl files from the SD Copy and copied an UNLOCKED gmapprom.img file instead. When I put it into the unit I get a screen titled SD Authentication with an input box that reads "Please input the password." and I get a keyboard with the a-z & 0-9 keys. I'm able to enter up to 16 characters (The keyboard doesn't allow symbols nor spaces).
How can I get that SD card password? I tried running the Hardware_IDExtractor tool on the copy SD, but it won't show anything under "Real Hard drive ID (hardware)". Although I don't think that would help much, as that would be the ID, not the password :/
The facts are:
- All the garmin information from the unit is stored in the factory SD Card
- A RAW copy of it doesn't work, without modifyng its contents, I get a cannot read map data message
- If I add an unlocked map to the RAW copy, naming it gmapsupp.img, I get a cannot read map data message
- If I delete the gmapprom img & unl files from the raw copy and copy an unlocked map with filename gmapprom.img, I'm asked for the SD password.
I would really appreciate any help; I've been reading full posts for the last couple of weeks and can't find a way to make the unit to accept a new SD Card & unlocked map.