Note 8 Oreo update changelog

May 10, 2015
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how to change CSC any guide ? please ?
The only way would be to use *#272*IMEI# and select XEF. Your device will reset.
When the device boots again (switched to XEF), there will be screen when it says "installing smart switch". There will be a prompt informing you that your SIM does not match XEF region. Select the first option to skip.
Once booted into XEF, download the OTA and install as usual.
When the device boots into Oreo, reset it.
At the same prompt again, select the second option this time. Your device will revert to its original CSC (according to your SIM).

This is lengthy but that was how I did it. *#272*IMEI# can no longer be used to switch back to your original CSC once it's in XEF.
 
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May 10, 2015
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This didn't work for me, guess I'll have to wait for the odin files then....

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Which part didn't work? Were you unable to dial *#272*IMEI# in the first place? If that's the case, you'll have to wait for your region to receive the update, unfortunately. It should arrive soon.
 
May 10, 2015
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If I dial *#272*imei# the menu shows, but no xef option available ☹
Your CSC is not part of OXM multi-CSC group. You'll have to wait for the update to be released in your region.

I advice that you do not change your multi-CSC group (by flashing a CSC from OXM). The default CSC in OXM is THL (Thailand), which does not allow switching away. Doing so will likely result in you getting stuck on THL. (Happened to my S7 edge when flashing Nougat back in 2017.)
 
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