我正在使用Nexus 5 32GB，Android 5.0.1。我正在尝试脱机保存地图，但是每次尝试保存时都会向我展示错误。
似乎问题是外部存储;它不可写。当我使用Google Play商店的TWRP Updater时，问题启动了，它添加了一个SD卡写补丁。如何解决这个问题？
I'm using Nexus 5 32GB, Android 5.0.1. I'm trying to save maps offline, but it's showing me an error whenever I try to save.
It seems the issue is on external storage; it's not writable. The issue started when I used TWRP Updater from Google Play Store, and it added an SD card write patch. How to fix this?
Below is screenshot of error
It was sdcard permission issue.
I had to flash 5.0 and then 5.0.1 again from fastboot. everything works fine now.