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Question If i remove my sim card and do a factory reset and insert another country's sim card will my phone csc changed to that country's csc?

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If you really want to try XME, do this on your phone. Select XME, then install. Backup before doing this. All data cleared
Screenshot_20210928-235023_Configuration update.jpg
Screenshot_20210928-235023_Configuration update.jpg
 

dubblecup

Member
Dec 19, 2011
36
6
Hey. I'm going through the same. Can't change my CSC to ATT which has the B17 frequency enabled. My country uses that as its LTE band. Are you still willing to share the credit?Or sell for that matter?I tried flashing fw but nothing changes. Phone is slow etc. Lemme know please. Thanks.
 

bajk10

Member
Feb 3, 2019
20
1
Samsung Galaxy S21 Ultra
that way if u wana keep ur current sim card .
he want to use another sim card like for example :
if u are living in india and use indian sim card than u cant change csc and will detect indian sim card csc.
if u are living in india and u use german sim card than ur csc changed to DBT and receive OTA from germany .
WE CANT CHANGE CSC IF WE USE SAME SIM CARD FROM THE REGION WE LIVING.
ONLY VIA SAMKEY THAT NOT ALLOWED AFTER AUGUST PATCH FOR S21 ULTRA.

HOPE I HELP
I had to downgrade to May firmware for SamKey to work. August or September patch didnt work.
 

gpap2004

Senior Member
Aug 12, 2007
235
31
That didn't work to my s21 ultra EUR CSC. It needs to change via SamKey
It worked only to my galaxy note 10.
 

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