WP8 mobile phone only 4GB storage can not upgrade Win10 Mobile (5GB) how to do?

Today we found that Microsoft described the storage space of the Windows 10 Mobile system in detail on another page. It can be seen that installing Win10 Mobile requires at least 5 GB of space. One of the key factors in upgrading the Win10 Mobile official version of the WP8 mobile phone is the minimum hardware configuration requirement for the Windows 10 mobile phone system. This is related to whether a phone with 4GB storage like Lumia530 is successfully upgraded to the Win10 Mobile system.

According to the Microsoft MSDN documentation, it is feasible to run the Win10 Mobile system on a 4GB storage phone. "The system must contain enough free space and have the partitions that OEMs need to update components in the future". In addition, in order to ensure the normal upgrade of Win10, "4GB storage phone also needs to be equipped with additional microSD card storage. & rdquo;

And Lumia530 just meets the above description, the possibility of upgrading the Win10 Mobile system is very large, but Microsoft needs to change the system upgrade mode, fully utilize the microSD card storage part.

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Win10 Mobile does not support 4GB smartphones Installation takes up 5GB of storage space