Restored /dev/mmcblk0p28 onto another device resulted no WLAN connectivity [answered]
asked 2014-10-24 01:26:42 +0200
I broke my device screen and tried to be clever:
- I bought an used device
- Exported image of /dev/mmcblk0p28
- Restored that image to the bought device
After a short usage everything else seems to be fine, except that I get no WLAN (I do get 3G). It's like the whole WLAN device is missing. (WLAN screen shows "Networking is not available. Please restart device.")
It seems that one does not simply move a system image from one phone to another... and now, when I think about it, I didn't check, which version phone I bought was using. Has there been firmware upgrades for the WLAN in some upgrades?
Any ideas, if there's anything to restore the WLAN (besides trying factory reset) and could there be also other issues that I'm just still missing after only short usage?
Meanwhile, I'm trying if Uitukka fixes things.
Update: I was lucky. System update was enough to bring WLAN back to life. (My first guess would be that somewhere in system configuration there's something device specific, like MAC, and when the device changes, configuration doesn't and that's how my WLAN died. And I'm just lucky that a system update can bring it back to life. My second guess would be that system updates include firmware updates and I moved a system from newer firmware device to a device with older firmware.)
Your image and the image in the device had a different kernel version. That's what happened. And yes it is not as simple as just restoring the main partition.
Philippe De Swert ( 2014-10-24 11:52:18 +0200 )edit