I have tried both cm 10.2 and pac and every time i try to change the call forwarding settings i get "Call settings error Network or SIM card error." I also get "Call forwarding Connection problem or invalid MMI code" when i try to punch in a code to change call forwarding. Any help would be greatly appreciated.
Btw I am on a P769.
UPDATE
I went back to 20f to see if i get the same error but no I can access and change call forwarding and use mmi codes but when i went back to CM same problem.
Please help!
Hello
i have verizon I545 model , i use it out side USA , when i try to call my mobile provider *054 its giving me error : "connection problem or invalid mmi code i545"
have some solution ?
You can dail *+054 (To dail + long press 0)
Any one else have a permanent solution >?
I keep getting the error connection problem or invalid MMI code when trying to run an ussd code and when i try to call someone i keep getting the out of service area how do i fix these two problems
Hi, I recently pruchased a Samsung Galasxy S6 Edge and bought a unlock code from eBay. When trying to enter USSD codes I get the same error everytime 'Connection Problem or Invalid MMI Code'.
I have looked online and tried the common fixes but no joy. Even trying to run a basic *#06# gives the same error. I have tried using a combination of + and , etc before the first digit and after the whole string but still get the same error.
Any ideas? It's driving me mad.
Cheers
djayyy said:
Hi, I recently pruchased a Samsung Galasxy S6 Edge and bought a unlock code from eBay. When trying to enter USSD codes I get the same error everytime 'Connection Problem or Invalid MMI Code'.
I have looked online and tried the common fixes but no joy. Even trying to run a basic *#06# gives the same error. I have tried using a combination of + and , etc before the first digit and after the whole string but still get the same error.
Any ideas? It's driving me mad.
Cheers
Click to expand...
Click to collapse
With some carriers external codes wont work, so which network is the phone locked to? Contact whoever it is and get it unlocked that way.
Good luck
Hi Duncan, many thanks for your reply. I didn't realise that, I will contact Vodafone in that case. Many thanks.
djayyy said:
Hi Duncan, many thanks for your reply. I didn't realise that, I will contact Vodafone in that case. Many thanks.
Click to expand...
Click to collapse
No worries dude and dont feel you got ripped off, its just some external codes dont work.
Im 99% sure when you buy from the network its locked to (in your case Vodafone) you'll be unlocked and happy days
Connection Problem OR Invalid MMI Code in New Update 6.0.1 Marshmellow
Hello There,
I am Using Samsung Galaxy S6 Edge ,
I Got an Update 6.0.1 Marshmellow , But After it i am Facing ' Connection Problem or Invalid MMI Code ' Whenever i Dial USSD Code like *129# or any other ,
i tried *+129# Not Working
i tried *129#, Not Working ,
Please Help me Anyone , How to get rid of this problem .
Thanks
hi , i have s6 edge , today facing a problem that , my sim card is not working..... Everything is fine Network Signals , but when i make a call , alert dialog " Not Registered to Network " some said it cause by IMEI number or some saying due to its security problem , having to make a new security files. can i get any help :/
thanks in advance guys