Thanks sony123, a real nice find.
Here's an automated method (completely safe and reversable) to take away the tedious work.
Download this shell script, rename it to maps.sh
Download one, or both, of these patches: traffic patch, rename it to traffic.patch day patch, rename it to day.patch
Place maps.sh and both/either of the patches into the same directory on the N9 and, as root, cd to where you copied them and run
Code:
sh ./maps.sh
If you are told a patch has already been applied and asked about a reversal, just anser "n" (no) to all the questions.
If you want to restore the original files then, as root, run:
did you modify the file after downloading it? it could be you've pressed the enter key on the first line of the file hence the error...this is what is my knowledge...
Confirmed that day/night does not seem to be automatically switching; the changes for the patch where taken directly from what Nieldk and Arie discovered, so unless I've made a mistake with the patch, I'll need to wait for either of them to re-confirm it is working for them.