: Modifying QCN files can permanently destroy your device's network capabilities.
Your phone cannot communicate its QCN data normally; it must be in a special mode. Most manufacturers disable the native DIAG (Diagnostic) mode, but you can activate it using a simple USSD code:
Extract the downloaded file to a folder on your computer. You may need to use a file extraction tool, such as WinRAR or 7-Zip.
(for new devices)
: Modifying QCN files can permanently destroy your device's network capabilities.
Your phone cannot communicate its QCN data normally; it must be in a special mode. Most manufacturers disable the native DIAG (Diagnostic) mode, but you can activate it using a simple USSD code:
Extract the downloaded file to a folder on your computer. You may need to use a file extraction tool, such as WinRAR or 7-Zip.
(for new devices)
