Map Product key not valid. When trying to redeem your Lifetime Maps, if you get an error saying the 'Map Product key you entered is not valid or cannot be recognized' (see image below), please check: You have correctly entered in a capital 'O' or the number '0'. You have correctly entered in a capital 'I' or the number '1'. Mio map product key. When you get the message Your Map Update Product key is successfully registered. Your device has been added for the lifetime map updates. Map updates will now be offered automatically via MioMore Desktop as and when available. Installing lifetime map updates on Spirit 4 / 6 Series. Mio Spirit 2011 Devices.
How to Fix Android unknown baseband version. To fix Unknown Baseband Version error on your Android device, simply backing up and restoring your EFS folder can solve the problem. The EFS folder can be found using any file manager app.But, backing it up and restoring it is a different task. Follow the steps below: HOW TO BACKUP AND RESTORE EFS DATA/IMEI ON Android EFS stands for Encrypting File System, it deals with all the networking and communication of your android. The error that most people make is that they are installing custom ROM without backing up their EFS folder.
Backup EFS Folder Of GALAXY Note 4 N910. / N915. Hello Everyone! The EFS directory is a folder that contains the most important files of your phone such as “nvdata.bin which contains the IMEI number, MAC address, BLUETOOTH, Before changing your firmware, installing a custom ROM, a custom kernel or doing any other manipulation, we advise you to make a backup of your “/ EFS” folder. The EFS file is one of the most important files in all the smartphone, This file is responsible for everything that needs a connection such as Wifi, Bluetooth, NFC, It only gives you emergency calls, This EFS file makes your Samsung Galaxy S2 i9100 a phone and not a video game.