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Samsung Galaxy J7 calls are breaking up after Android 9 Update
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if you are on cdma network, you might want to try and see if you need to update and prl profiles
if those do not work then you might need to factory reset the phone. sometimes with updates, especially big ones like the pie update, you might get a bad download or a bad install. factory resetting the phone should reset the phone correctly. if you are still having issues then it could be a hardware issue.
if those do not work then you might need to factory reset the phone. sometimes with updates, especially big ones like the pie update, you might get a bad download or a bad install. factory resetting the phone should reset the phone correctly. if you are still having issues then it could be a hardware issue.