You cannot simply click and install a XAP file on Windows 10 Mobile without preparing the operating system first. Ensure you complete these three steps. 1. Enable Developer Mode
: This can happen if the XAP file is corrupted, if your phone's Developer Mode is not properly configured, or if there are unresolved compatibility issues between the app version and your OS build. Try re-downloading the XAP and redeploying it. opera mini xap for windows 10 mobile work
: Inside Opera Mini, type opera:config into the address bar. Locate the security or networking preferences and look for options to alter proxy settings or certificate verification. You cannot simply click and install a XAP