I can't use codes in my dialer :( - Huawei P20 Lite Questions & Answers

Help would be appreciated,
I type in codes science I have no service, I try to fix it by using the code *#*#4636#*#* and the other testing menu codes and whenever I type them in the app either crashes or doesn't crash but not work.

Stock rom with the stock dialer?

Related

Invalid MMI code/ USSD Running

When I input the code to check if my gs3 is locked I get ussd code running, then connection problem or invalid MMI code.
The code I use is *#7465625# and I have to press the call button. I am using the stock dialer.
I have used voodoo to unlock the sim network and think this is the problem. I have flashed a stock firmware but this has made no difference.
Please help...
Voodoo uses the information from the operating system whether the phone is locked which is identical to the one displayed with the code.
So if it says it's no longer, then it's no longer.
Sent from my GT-I9300 using xda premium
I found that the code stopped working in LFB.
If not mistaken, Voodoo only stopped working since LG6.
So it may not be related.

*#7465624# aka *#SIMLOCK# doesn't work: Connection Problem or Invalid MMI Code

first off when i input the code i get nothing, nothing happens.
when i call the code this appears "Connection Problem or Invalid MMI Code"
i searched for solutions but nothing
help pls
Codes only work on touchwiz firmware, aka. Samsung stock or modded if I remember correctly.
Also, if you're using other dialer than original you can get same error.
Sent from my GT-I9300 using Tapatalk 2

Code to check carrier lock status ?

i remember back in the days where there was a code to enter in the dialer which would tell you if the phone was currently locked or not. any1 know whats that code ?
I entered some i found on google but all i got was some weird pop up which said something about USSID errors or something similar. Thanks!
There are many codes but they all tell me the same error
did you try:
*#7465625#
?

Resolved Msl codes not working

First off aren't the codes that come with *#*# and #*#* Msl codes? I can't get to them.
When I type *#*#service#*#* the typed thing erased itself (that's when the menu opens up usually) and does not open the menu.
Btw recently did cm10 update.
Sent from my Xperia Mini Pro
I heard that cm has a different type of service menu. so there maybe another way to open the service menu.
Re: Msl codes not working
That code only works in stock based ROMs
CyanogenMod has different framework...
To access service menu in CM
*#*#4636#*#*
Its a bit different from sony default service menu.
PREDATOR95 ->->->->a.k.a. ->-> predatOr
On stock rom you can try *#*#7378423#*#*
On cm10 it won't work because it's bloatware

Problem with secret codes

Hi
I have G925I
After flashing and rooting my phone,i notice that secret codes are not longer working (ex *#06# )
How to re-enable them?

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