Hi I currently have the HTC Desire 510 android phone running kitkat 4.4.2 but however when I try to check the Sar level on my phone by going to the dialer app on my phone and putting the following *#07# I keep receiving the following error message (Connection problem or invalid MMI code). I have searched google for the answer but I have had no luck. I do not know how to fix this. Any help to this question would be appreciated thanks.
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Hello,
I have a problem with one st (t528t) , I can't get answer after mmi code carrier , and I havec this error message " connection problem or invalid MMI code"
Can somebody help me please ?
Thank's
Hello,
I have a problem with one st (t528t) , I can't get answer after mmi code carrier , and I havec this error message " connection problem or invalid MMI code"
Can somebody help me please ?
Thank's
Hey,
The phone is rooted with cwm and used as gsm.
I get calls, sms and can use the internet. The problem is I cant dail *num in my country- I get connection problem or invalid MMI code.
What can I do ?
deadwolf666 said:
Hey,
The phone is rooted with cwm and used as gsm.
I get calls, sms and can use the internet. The problem is I cant dail *num in my country- I get connection problem or invalid MMI code.
What can I do ?
Click to expand...
Click to collapse
Bump,
Please need help
Hello, I'm using this phone overseas. everything works, gsm, messaging, umts but USSD doesn;t work. I get error message ,,Connection problem or invalid MMI code''. Please, help me how can I fix that? I;m on 4.3 stock. Thanks!
PLEASE HELP !!!
None of the secret codes would run on my Galaxy S3 Verizon SCH-I535 (Android 4.4.2 ) .
Everytime I run a code it gives me an error message ( Connection problem or invalid MMI code).
Tried almost all secret codes but no avail, even the code to check the IMEI wont work and gives the same error message.
FYI - I got it unlocked in India.
hemantk786 said:
PLEASE HELP !!!
None of the secret codes would run on my Galaxy S3 Verizon SCH-I535 (Android 4.4.2 ) .
Everytime I run a code it gives me an error message ( Connection problem or invalid MMI code).
Tried almost all secret codes but no avail, even the code to check the IMEI wont work and gives the same error message.
FYI - I got it unlocked in India.
Click to expand...
Click to collapse
Its sim unlocked not bootloader unlocked
Sent from my Nexus 5
Pretty sure dialer codes were disabled due to security concerns several years ago. Something about a particular one being used to factory reset phones. So, there's no way around that.
Sent from my SCH-I535 using Tapatalk
So what should I do to make them work on my phone ?
Kindly help, I would really be grateful of you.
It is weird that none of the secret codes would run on my phone & all I get to see is ( Connection problem or invalid MMI code), I have tried adding a "," after the code but it didnt work either.
What should I do ?
hemantk786 said:
So what should I do to make them work on my phone ?
Kindly help, I would really be grateful of you.
It is weird that none of the secret codes would run on my phone & all I get to see is ( Connection problem or invalid MMI code), I have tried adding a "," after the code but it didnt work either.
What should I do ?
Click to expand...
Click to collapse
As stated in the previous post they were disabled years ago. There isn't a way to re-enable them
Sent from my Nexus 5