Sim undetected

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algnerd

Senior Member
My S20U (G988U1) was able to detect my french carrier's sim Card until I update to (FVK1) (Tried using my sim card in an other phone and it worked but trying an other sim card in my phone didn't work)

Tried to downgrade to previous version (FVI6) but my phone for some reason doesn't connect in download mode nor I'm being able to successfully run adb devices on my pc (my device doesn't show up in the listing nor show up as accessible storage on my computer)

any suggestions and help would be appreciated

Regards
 
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niko666x

Senior Member
Sep 7, 2012
107
13
If you can't get into download mode, there's not much you can do. Disable developer mode, restart your device and re-enable developer mode, and reconnect your device by pressing both volume buttons and at the same time connecting the original cable.
 

niko666x

Senior Member
Sep 7, 2012
107
13
did you load the "USERDATA" file in Odin? You shouldn't have done it if you used a Firmware SPR, VZW, AIO, ...
 
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V0latyle

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    I'll try it but like I said, I was unable to connect my phone to my pc (not even in file transfer mode)