Install windows 10 mobile ROM version 1709 build 15254.158 ...

特別選項：如果你認為你不需要Windows 10 Mobile（手機原本的作業系統）的話，你也可以在Advanced 選項裡選擇複寫掉，可以多出7GB左右的空間。

Only limited Windows Phones are eligible to be upgraded to the latest Windows 10 Mobile release. The second generation Lumia (x2x series) are unfortunately no longer supported by M$ to run Windows 10.

这份教程提供了离线更新Windows 10 Mobile的具体步骤，对于有需要在没有网络连接的情况下对Lumia 1020进行固件升级的用户来说，具有很高的实用价值。

無法以正常系統更新升上Win10m的Lumia。 下列機型適用︰Lumia520/920/925/1020/1320 一、離線安裝Windows 10 mobile （一）下載iutool離線安裝程式及安裝包 1點擊 這裡 下載iutool離線安裝程式 2點擊下載對應機種的離線安裝包 本教學以Lumia 925做示範

This guide is meant to empower Lumia users to revitalize their phones by installing Windows 10 Mobile. By following the outlined steps, you can enjoy a smoother and more fortified experience on your device.

I am trying to install Windows 10 on my lumia 1020 but after unlocked bootloader when I try to root my phone it shows "now rebooting to mass storage mode" with no response.