After putting the two files under cities, copy the files in the cities folder to the computer, then delete the cities folder above the mobile phone, and run the map software again. The cities folder will be automatically regenerated, and then copy your signature to the computer and the cities folder of the mobile phone, overwriting the original file! Then try it. It should be solved!

If you want to change the Singapore version of the code, please download and install NSS software on your computer, then connect your mobile phone to your computer and change the code to HSBC or Bank of China through NSS software. After modification, go directly to official website to download the updated software of Nokia soft updata and upgrade the computer online.