Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
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-1
votes
1
answers
40
views
Lost one mobile network slot after changing an option in 4636 dialer code
I'm using Nokia Android phone. When I dial `*#*#4636#*#*#`, the testing option is displayed. Scrolling down to radio power options, I mistakenly toggle something like DNS and turn it off. Unfortunately, I have lost one of my network slot for my Android phone. Please assist me.
I'm using Nokia Android phone. When I dial
*#*#4636#*#*#
, the testing option is displayed. Scrolling down to radio power options, I mistakenly toggle something like DNS and turn it off. Unfortunately, I have lost one of my network slot for my Android phone.
Please assist me.
Collins
(1 rep)
Jun 23, 2025, 08:20 AM
• Last activity: Jun 24, 2025, 10:09 PM
0
votes
1
answers
4397
views
Pressing # before * clears all code in checkin
I want to dial `*#*#2432546#*#*` so aka `*#*#checkin#*#*` to check updates http://lifehacker.com/5719657/force-your-android-phone-to-check-for-a-system-update but when I press # in this place `*#*#2432546#` <- this place it clears and can't type all code Make: Goclever Model: Quantum 350 android ver...
I want to dial
*#*#2432546#*#*
so aka *#*#checkin#*#*
to check updates http://lifehacker.com/5719657/force-your-android-phone-to-check-for-a-system-update
but when I press # in this place *#*#2432546#
<- this place
it clears and can't type all code
Make: Goclever
Model: Quantum 350
android version: jelly bean 4.2.2
Grisza
(139 rep)
Mar 22, 2017, 12:19 AM
• Last activity: May 25, 2025, 08:04 AM
2
votes
1
answers
9085
views
Is it possible to read IMEI from emergency call dialer?
I am looking for the method to read IMEI from emergency call dialer, before the phone is activated. When I try *#06# it says that this is not emergency number.
I am looking for the method to read IMEI from emergency call dialer, before the phone is activated. When I try *#06# it says that this is not emergency number.
Marcin Gabryelski
(21 rep)
Nov 3, 2017, 12:34 PM
• Last activity: Mar 14, 2024, 06:13 AM
2
votes
0
answers
145
views
What package/app is actually running when doing dialer codes
I am currently trying to figure out another way to access my Samsung Galaxy S21 Ultra's Secret Menus accessed via the dialer codes. My phone cannot open almost all of the dialer code, probably due to restrictions. I figured out how to open the Phone info(The one with the preferred network Setting) m...
I am currently trying to figure out another way to access my Samsung Galaxy S21 Ultra's Secret Menus accessed via the dialer codes. My phone cannot open almost all of the dialer code, probably due to restrictions. I figured out how to open the Phone info(The one with the preferred network Setting) menu via an intent, but I'm now trying to look for the other ones like
4636
and 9090
I then realized I just need to know the package and the class and that stuff to open it. The question is, what are the packages.
I'm basically looking for what package is opening all of these secret menus, and how to execute the dialer codes through that package via intents, or if there is another way to open these secret menus without the dialer.
Please know that I don't actually code intents and use something like automate or Macrodroid to run intents. I am on a un-rooted device, and have no way to access adb. Basically what I'm doing is trying to configure stuff with 4g/5g while just seeing all the menus and what they offer.
Any help would be greatly appreciated!
LilData777
(161 rep)
Feb 9, 2024, 02:26 AM
• Last activity: Feb 9, 2024, 02:00 PM
2
votes
1
answers
3559
views
Can I save a "star-hash" (*#) code as contact?
I'm developing on a Huawei phone, and to enable logging on this device one must dial `*#*#2846579#*#*` to get to a hidden service menu, as described in [this answer on Stack Overflow][1]. Is there any way I can save this code as a contact and "dial" it from the favourites list for easy access? Of co...
I'm developing on a Huawei phone, and to enable logging on this device one must dial
*#*#2846579#*#*
to get to a hidden service menu, as described in this answer on Stack Overflow .
Is there any way I can save this code as a contact and "dial" it from the favourites list for easy access? Of course I tried just adding a new contact with the code as the number, but when I "dial" it the phone actually dials the number instead of opening the hidden service menu, resulting in a "Sorry, you can't dial this number" voice message from my phone operator.
Magnus
(631 rep)
Feb 19, 2018, 06:15 AM
• Last activity: Dec 21, 2023, 05:11 PM
0
votes
0
answers
47
views
Cannot send touch tones for press number or enter card number?
I have a Samsung Flip 3, when asked to push a number or enter my card number was not working despite many efforts. I can tell you the solution I found on the forum from years ago after much searching was absolutely the fix: Settings, Accessibility, Interaction and Dexterity, Touch and hold delay, ch...
I have a Samsung Flip 3, when asked to push a number or enter my card number was not working despite many efforts. I can tell you the solution I found on the forum from years ago after much searching was absolutely the fix:
Settings, Accessibility, Interaction and Dexterity, Touch and hold delay, change from Short to Long. Problem solved.
Cheers.
J Bates
(1 rep)
Nov 2, 2023, 12:15 AM
1
votes
1
answers
877
views
Unable to make calls, but MMS/USSD and SMS works
I am running a [Moto G Stylus 2021](https://www.gsmarena.com/motorola_moto_g_stylus_(2021)-10583.php). Currently, I am not able to make any phone calls, not even access my voicemail. I am though, able to receive phone calls and make and receive text messages and use USSD codes. I do not know why thi...
I am running a [Moto G Stylus 2021](https://www.gsmarena.com/motorola_moto_g_stylus_(2021)-10583.php) .
Currently, I am not able to make any phone calls, not even access my voicemail. I am though, able to receive phone calls and make and receive text messages and use USSD codes. I do not know why this is happening as it did not happen before. It is not a carrier issue because I reached out to them and they told me that they have detected no issues with my device but either way sent out a SIM refresh to my device. Even so I was still unable to make phone calls.
Recent changes to my phone was someone going in and messing around with the MMI codes and settings.
Does anyone know what may be the issue?
Does anyone know what may be the issue?
Joe
(426 rep)
Jun 27, 2023, 08:25 PM
• Last activity: Jun 28, 2023, 03:36 PM
2
votes
3
answers
8219
views
Unable to make an outgoing call after calling *31# on Moto G
I have a Moto G (1st generation) mobile bought in India. When I tried to make my Caller ID hidden from [this wikiHow article][1], I called `*31#` and after that, I couldn't make a call to anyone. Then I tried and miraculously I could make a call by adding a prefix of `*31#` to any number. Please hel...
I have a Moto G (1st generation) mobile bought in India. When I tried to make my Caller ID hidden from this wikiHow article , I called
*31#
and after that, I couldn't make a call to anyone.
Then I tried and miraculously I could make a call by adding a prefix of *31#
to any number.
Please help me out fixing this issue.
sarathprasath
(131 rep)
Feb 12, 2015, 11:42 AM
• Last activity: Jun 28, 2023, 03:49 AM
5
votes
3
answers
428442
views
How to find how many hours an Android phone has been used?
I want to know if there is a method that can tell me how many hours an Android phone has been used. Just like we have cheat codes that we used for Nokia phones; they tell us the hours (regardless of factory reset). Any alternate for Android?
I want to know if there is a method that can tell me how many hours an Android phone has been used. Just like we have cheat codes that we used for Nokia phones; they tell us the hours (regardless of factory reset). Any alternate for Android?
74H1R
(173 rep)
Nov 11, 2011, 09:39 PM
• Last activity: Jun 18, 2023, 01:03 AM
1
votes
0
answers
3502
views
Unknown phone number
An app that I need is not recognizing a SIM/Phone number. ...But the problem is not the app: Before we go: I've visited other forums, but the answers are uneffective, completely unfit, or oriented to old androids. - If I go to Settings > About phone > Status > SIM Status, I get many *Unknowns*; - If...
An app that I need is not recognizing a SIM/Phone number.
...But the problem is not the app:
Before we go: I've visited other forums, but the answers are uneffective, completely unfit, or oriented to old androids.
- If I go to Settings > About phone > Status > SIM Status, I get many *Unknowns*;
- If I go to Settings > Connections > SIM management, the phone number shows *Unknown*;
- I've tested on 5 different phones (see below). This problem happens on three of them, and works as supposed on the other two;
- The phone receives and sends calls and messages;
- I've resetted APN and stuff, as suggested on other sites;
- There is no option to change my own number on any setting
The SIM card is more than two years old.
Below:
- Does not work on a new Xiaomi, nor on a Galaxy A01 (gotta make work on this one). Calls and SMS work normally.
- Used to work on a Galaxy S9. No one can remember when it stopped.
- Works on two motorolas, one old, probably G3, and the other is a G6. Calls and SMS work normally.
**Update:**
it happens with another SIM.
That SIM belongs to the G3 above. Both SIMs works well on the G3 and the G6, none of them has the number identified on the defective ones (Galaxies and Xiaomi).
user113550
Dec 1, 2020, 08:23 PM
• Last activity: Dec 5, 2022, 10:23 PM
48
votes
5
answers
166371
views
What are the known Android keypad commands (dialer codes)?
There are a lot of different keypad commands in Android. What are the known ones? Some of them are listed here : - `*#*#checkin#*#*`: Phones home to check for updates. - `*#*#info#*#*`: Enters a detailed phone information menu. - `*#*#1472365#*#*`: Access to the GPS config menu (useful for patching...
There are a lot of different keypad commands in Android. What are the known ones?
Some of them are listed here :
-
*#*#checkin#*#*
: Phones home to check for updates.
- *#*#info#*#*
: Enters a detailed phone information menu.
- *#*#1472365#*#*
: Access to the GPS config menu (useful for patching [Galaxy S GPS failure](https://android.stackexchange.com/questions/6981/how-can-i-fix-the-gps-on-my-samsung-galaxy-s))
Rob
(1642 rep)
Sep 23, 2010, 02:50 PM
• Last activity: May 15, 2022, 11:42 AM
0
votes
0
answers
100
views
Get full list of secret codes in android
I was able to run some of settings hidden apps via adb with adb shell am start -a android.intent.action.MAIN "com.android.settings" These hidden apps are actually some of the activities runnable via "secret codes". Since secret codes are various and some of them are also vendor/device defined, is th...
I was able to run some of settings hidden apps via adb with
adb shell am start -a android.intent.action.MAIN "com.android.settings"
These hidden apps are actually some of the activities runnable via "secret codes". Since secret codes are various and some of them are also vendor/device defined, is there a way to retrieve list of every secret code available on a particular device? Maybe from a manifest, by identifying the receivers, via some adb commands etc.
Thank you in advance!
Diego Contaldi
(1 rep)
Dec 2, 2021, 09:33 AM
• Last activity: Dec 2, 2021, 01:06 PM
0
votes
1
answers
2128
views
Default ATI Path Change setting on Samsung Galaxy A20
I've just purchased my Samsung Galaxy A20 and was configuring my settings, and I'm unsure what this specific setting does. ``` ATI Path Change (Both) [0] Physical UART path [1] AP path [2] Both ATI, No RmPC ``` I accidentally hit my screen and it chose an option. Now I'm unsure what the default sett...
I've just purchased my Samsung Galaxy A20 and was configuring my settings, and I'm unsure what this specific setting does.
ATI Path Change (Both)
Physical UART path
AP path
Both ATI, No RmPC
I accidentally hit my screen and it chose an option. Now I'm unsure what the default setting was.
I've tried to look it up but no luck to help guide me on the right or default setting was.
I've chosen "Both ATI, No RmPC", but which one was the default setting?
Alesha
(1 rep)
Apr 14, 2020, 05:59 AM
• Last activity: Feb 2, 2021, 01:47 AM
4
votes
1
answers
76243
views
How to automatically repeatedly dial a number and automatically press numbers each time?
I'm trying to get through to the Swedish Migration Agency (Migrationsverket) and their lines are constantly busy. In order to get into the queue, one needs to call them, then press 1 twice. This would be fine, except typically you get a voice telling you that all lines are busy and to call back late...
I'm trying to get through to the Swedish Migration Agency (Migrationsverket) and their lines are constantly busy. In order to get into the queue, one needs to call them, then press 1 twice. This would be fine, except typically you get a voice telling you that all lines are busy and to call back later. The migration agency then cuts the call. One such cycle takes roughly 30 seconds.
In order to get through, one simply needs to repeat this process repeatedly until there happens to be an available line and one is placed in queue. This can take anything from 5 to 20 minutes of manual calling and pressing depending on chance.
So one needs to call them, wait to be connected, then press 1 twice. Then, when all lines are busy, hang up (or wait for them to cut the call, which takes a few seconds longer), then repeat the process until a line is available and one is placed in queue. I would prefer to spend my time and attention doing something else.
How can I automate this process?
Fiksdal
(1311 rep)
Nov 16, 2017, 04:12 PM
• Last activity: Jan 19, 2021, 01:44 AM
0
votes
1
answers
96
views
Call Automatically Disconnects When Calling
I have a **android tablet with android 5.1 lollipop** in which I have an **airtel number**. When I call someone using my number (not WhatsApp just normal call), sometimes it shows "**Dialling**" and then automatically call ends in 1-2 seconds. Sometimes, it directly disconnects in 1-2 seconds. Last...
I have a **android tablet with android 5.1 lollipop** in which I have an **airtel number**.
When I call someone using my number (not WhatsApp just normal call), sometimes it shows "**Dialling**" and then automatically call ends in 1-2 seconds. Sometimes, it directly disconnects in 1-2 seconds.
Last thing I remember was that I was playing with some of the dial codes of Android. From then this problem started. Before that, I was able to make calls with the SIM which I have now & also with my old SIM
Aditya
(111 rep)
Dec 16, 2020, 02:33 AM
• Last activity: Dec 16, 2020, 09:51 AM
0
votes
0
answers
133
views
Unlock codes inactive
Why don't the Android secret codes work for any of my android devices, I have two s7 edge phones and two s9 phones with the straight talk wireless unlimited plan, the phones came from Verizon wireless and were transferred over, any reason why? s9 just downloaded the latest firmware, It didn't work b...
Why don't the Android secret codes work for any of my android devices, I have two s7 edge phones and two s9 phones with the straight talk wireless unlimited plan, the phones came from Verizon wireless and were transferred over, any reason why?
s9 just downloaded the latest firmware, It didn't work before or after.
Testing Menu. *#*#4636#*#*
Factory Restore. *#*#7780#*#*
Camera Information. *#*#34971539#*#*
Display Info about device. *#*#4636#*#*
Backup all media files. *#*#273283*255*663282*#*#*
Completely Wipe device, install stock firmware. *2767*3855#
Wireless LAN Test. ...
hello moto
(101 rep)
Sep 2, 2020, 11:33 PM
16
votes
1
answers
104356
views
What is CP and AP and what are these options used for?
There is this service menu where I can select different USB modes for my phone. One option is called CP and the other is AP. [![menu][1]][2] What do the acronyms CP and AP stand for? I recognize MTP, PTP and ADB. But what are the options CP and AP used for? [1]: https://i.sstatic.net/vLH5hm.jpg [2]:...
There is this service menu where I can select different USB modes for my phone. One option is called CP and the other is AP.
What do the acronyms CP and AP stand for? I recognize MTP, PTP and ADB. But what are the options CP and AP used for?

Samir
(1405 rep)
Aug 29, 2015, 07:49 PM
• Last activity: Jun 19, 2020, 01:58 PM
2
votes
1
answers
6960
views
Why I am unable to check balance on BSNL Mobile in Android Phone?
I have just [ported my Tata Docomo number into BSNL Mobile][1] and it is working good. But I am not able to check my balance and recharge top up coupons because USSD code that we run, like `*123#`, are not working. It says "Connection problem or invalid MMI code". Unfortunately, it is happening only...
I have just ported my Tata Docomo number into BSNL Mobile and it is working good. But I am not able to check my balance and recharge top up coupons because USSD code that we run, like
*123#
, are not working. It says "Connection problem or invalid MMI code".
Unfortunately, it is happening only in my Samsung Galaxy Y Duos GT-S6102 which is based Android 2.3.6 Gingerbread. I tried on another cell phone and there was no error. Talktime balance showed up and even I recharged with the top up coupon.
My phone has dual SIM support and there is no corruption on both SIM ports. Message centre number for BSNL mobile is also correct and I am able to send SMS too. There was no problem with Tata Docomo either.
Don't know what's the problem with MMI codes.
user12288
Dec 27, 2012, 10:52 AM
• Last activity: Mar 7, 2020, 09:44 AM
1
votes
1
answers
7079
views
What is "FQC" test app in Nokia 6?
There are some dialer codes in Nokia 6, e.g: `*#*#4636#*#*`,`*#*#2486#*#*`, `*#*#372733#*#*`. The last one starts an application named "FQC". In this app, there is a menu containing "Receiver test", "LED test", etc. I think this is for factory testing, but after starting this test mode, did my devic...
There are some dialer codes in Nokia 6, e.g:
*#*#4636#*#*
,*#*#2486#*#*
, *#*#372733#*#*
. The last one starts an application named "FQC". In this app, there is a menu containing "Receiver test", "LED test", etc.
I think this is for factory testing, but after starting this test mode, did my device change to a test device? If yes, how can I stop and exit this test mode? Do I need to factory reset?
wasuwasu
(11 rep)
Nov 15, 2017, 08:36 PM
• Last activity: Nov 16, 2019, 12:03 AM
3
votes
2
answers
15278
views
Open Engineer Mode and run other hidden codes on Moto G 3rd generation device?
I'm running LineageOS ROM on my Moto G 3rd generation smartphone and recently I wanted to run some hidden codes of Android like `*#06#` for IMEI and so on. However, none of this [ones][1] works correctly on my phone: > 1. Phone information `*#*#4636#*#*` > 2. IMEI Info `*#06#` > 3. Calendar `*#*#225...
I'm running LineageOS ROM on my Moto G 3rd generation smartphone and recently I wanted to run some hidden codes of Android like
*#06#
for IMEI and so on.
However, none of this ones works correctly on my phone:
> 1. Phone information
*#*#4636#*#*
> 2. IMEI Info
*#06#
> 3. Calendar
*#*#225#*#*
> 4. Debug info for Google Play Service
*#*#426#*#*
> 5. Access Google Partner Setup
*#*#759#*#*
> 6. Engineering Mode
*#*#2486#*#*
The IMEI closes the dealer/phone app, while the engineer/service mode codes (the one in which I'm more interested) don't activate anything. Let's say that the dealer interprets correctly the code but doesn't run this tasks.
So knowing this, I would like to know if there is a way of looking if the relative services are on my phone? If it isn't the case, how I can add them or run from PC with USB maybe? Are the secret codes dependent on the ROM like I imagine or not?
###Notes:
I tried hidden codes of other manufacturers like Samsung, HTC, ... too but no result obviously.
Iulian
(153 rep)
Nov 20, 2018, 12:35 PM
• Last activity: Apr 18, 2019, 10:49 PM
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