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I know that Android (at least Pie) uses a file WifiConfigStore.xml to store WiFi access points and passwords. It is located in /data/misc/wifi/.

I saved it before wipe and reinstall everything. The idea was to copy it back to this location. While the phone is on/powered it seems not to uses the information from this new file. But after reboot it is gone and overwritten.

So my question: is there a special trick? Or is this not the proper location? Is there some backup file stored somewhere else?

(I have a rooted LineageOS 16 device with Magisk. I even tried to change the file in TWRP with not better result.)

Edit: Found that this file is also located in /data/misc_ce/0/wifi, /sbin/.magisk/mirror/data/misc/wifi and /sbin/.magisk/mirror/data/misc_ce/wifi

And there are also files WifiConfigStore.xml.encrypted-checksum. From naming it sounds like there it is including a checksum to avoid errors in xml? This file I have not saved. Am I lost now? Can I delete this and it will be created than?

What is function of this misc_ce folders?

Thanks!

  • /data/misc/wifi/wpa_supplicant.conf – alecxs Nov 13 at 9:16
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    This has been used in older versions - it is not active used anymore... I can see all the data in this (saved) WifiConfigStore.xml. – Arno Nov 13 at 9:46
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It seems that the magisk folder is just a link. Not sure about the misc_ce folder. I copied WifiConfigStore.xml, changed properties and owners and renamed the checksum file. After reboot the checksum was recreated and the xml gets valid...

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