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JM999999

Teacher

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17 Messages

Wed, May 1, 2019 4:47 PM

Call forwarding error on AT&T with Android phone

Sometime in the past 4 months, my Android phone stopped being able to configure conditional call forwarding (busy/no-answer/unreachable) using either the standard **004 USSD/MMI feature code or using the Phone app's settings menu (Phone > Settings > Calls > Call forwarding > Voice).

When I try using the **004 feature code, I get the following error every time: "Call forwarding: Connection problem or invalid MMI code."

When I try using the Phone app's settings menu, I get the following error: "Call settings error: Network or SIM card error."

Oddly, when I put my AT&T SIM card into a different model Android phone, both methods work without a problem. They just won't work on my usual phone, a Blackberry Key2 (Android). The **004 feature code worked on my same Key2 as recently as last September, when I first joined AT&T, but it stopped working sometime since then.

 

I exchanged my AT&T SIM card for a new one, but it made no difference. I've tried rebooting my phone in Safe Mode, disabling various apps, and even factory resetting it, again with no difference.

I have triple-checked that I am using the proper USSD/MMI feature code sequence, **004*1xxxyyyzzzz#[SEND], where xxxyyyzzzz is the target phone number). I have already tried using different target phone numbers; that is not the problem. And, I have tried using various other USSD/MMI feature codes (**21, **67, *004, #004, **002, etc.), and none of them seem to work on the Key2.

Any idea what's going on? Having to call AT&T customer service every time I want to change my conditional call forwarding number or other phone settings is not a good solution.

 

Thank you.

Responses

Brand User
ATTHelp

Administrator

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111.9K Messages

a year ago

Hello @JM999999

 

Allow us to offer a helping hand!

 

It seems that the device may not be compatible with the key code features. We recommend contacting Blackberry Support   to check for known errors with key code entry. Also you can use our Device Support Portal  for further assistance.

 

We hope this helps.

 

Dwight, AT&T Community Specialist

 

 

 

 

 

 

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*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.

New Member

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2 Messages

Blackberry Support says, "Call AT&T." I quote, "The carrier is the one who activates features like this on non carrier branded devices."

JM999999

Teacher

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17 Messages

8 months ago

We recommend contacting Blackberry Support   to check for known errors with key code entry

 

I finally heard back from Blackberry Support.  Their response was: "We recommend contacting AT&T Support."

 

So now..?

New Member

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2 Messages

Same issue. TCL says it"s an AT&T issue. I can't get an answer out of AT&T yet. I am finding this frustrating that I have spent large amounts of cash with both of these companies, and no one cares enough to fix their problem.

Tutor

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8 Messages

a month ago

Same problem with my Nokia 6.1 and AT&T for over a year with no solution. Did not have a problem with my Nexus 5.

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