[Q] hidden codes - Galaxy Tab 10.1 Q&A, Help & Troubleshooting

so on the Galaxy S I9000 there are a slew of codes that can be used to access the engineering menu for the phone, change the csc file etc. -- change the enabling structure of the phone in effect.
So my question is: how do you (a) access and (b) change those codes for the galaxy Tab 10.1 when it is a version (4g Rogers in Canada) that does not have a phone dialer?
do you install a modem to activate a dialer? or does the sim card control that availability on the Tab 10.1?
anyone played with this yet? is there another way to access the codes not using a phone dialer?

There is an app that Samsung uses called Factory Mode. It brings up a calculator looking interface which allows you to enter numbers and # signs etc. Don't get too excited though. Most of the I9000 codes don't work just giving a Wrong Format error. I don't know if you need this special app or if any calculator app will work.
How do I know? I just got my tab back from Samsung after sending it in for service and it came back with the factory mode app on it.

I wonder what's the purpose of that "Factory Mode" for end users, aside from saving time as lock screen/mechanisms are completely nonexistent.

Related

[Q] How to hide phone identity in Online account

Hi
I recently got HD2 (US) with tmobile after upgarde. My question is, "Is there any way to hide phone's identity on their website". Like for testing I checked website, it shows i am using HD2 -- then I took out the sim card and inserted in my old phone samsung katalyst...Next day i checked website it automatically changed information in my profile that I am now using samsung katalyst.
I want to know if is there any way to change some settings in phone or use some application, so when I put simcard back in HD2....It doesn't show on tmobile website, that I am using HD2. (by the way I got unlock code from t-mobile website - officially and have unlocked my HD2..if it helps to solve the question.)
Thanks

[Q] Secret Codes

Anyone know of any "secret codes" to get into the cell modem / phone part of this device? (like the */# codes for phones)
I see via google that some tablets use codes intered into the calculator.
The main thing I am looking for it a way to disable HSPA+
the "4g" if you can call it that seems to be messing with my vpn. I would be happy to go back to 3g speeds till they get it fixed.

How To Make Verizon SCH-I545 Fully Work On AT&T

First off let me start by saying that you will need root access on your phone which will void your warranty. So if you care about your warranty stop reading now.
Secondly I'll tell you right now this is only confirmed to work on this model of phone(sch-i545) with build LRX22C.I545VRUOF1 on AT&T. You will only have H+/4G signal NO LTE. H+/4G seems to have virtually unnoticeable speed differences in my opinion. If this is a deal breaker stop reading now. If you wish to try this on other networks feel free and let me know if it works. Now on with the show.
Step 1.
Gain root access on your phone. If you need to know how please check out this link. This is the method I used to root mine.
http://forum.xda-developers.com/galaxy-s4-verizon/general/root-of1-t3249971
Step 2.
Enable "hidden menu" feature on your phone.
To do this you will need to download Root Browser and superSU from the play store.
Once both are installed and set up use root browser(a window will pop up asking for you to grant it root access. Select yes or "grant") to access files.
Find and open file named efs. Inside that file open another called carrier.
Inside the carrier folder is a file called HiddenMenu
Open this file as a text Document using RB Text Editor
Once open it will say OFF. Change it to ON and then click save.
Next go back and find a folder called system.
Inside this folder scroll down and find a file called build.prop
Open this with RB Text Editor.
And the following text to the top of this page: sys.hiddenmenu.enable=1
Click save and close all apps and reboot phone.
Step 3.
Once phone has rebooted open your phone dialer and enter *#27663368378#
A service mode window will open up.
Click on LTE
Then click on PREF MODE Set
Then click on GSM_WCDMA_ONLY
Close and reboot phone.
Once your phone loads back up you should have H+/4G (depends on your area) and you should be able to send and receive text messages, make and receive calls.
You will need to set up an APN for AT&T if you didn't already after you rooted your phone. Settings for those can be found on AT&T'S website.
After you reboot a window will pop up asking you to chose a network. Click cancel.
Like I said in the beginning if you want to try this with other carriers feel free to let us know how it works for you. If you have any issues with this method or have questions feel free to ask. Good luck and I hope you are pleased with my method.
Thanks for the info there another way of doing this. Which does not involve coding. It requires rooting, and loading a custom rom. If you root your phone using your methods then use flash fire to down load stang5litre version of lolipop. Afterwards you can go to the play store and download advanced signal status app. You can use this to toggle between gsm and lte and other networks. select gsm and you will be able to text but you will not have 4g lte . I got it to allow my s4 to send texts on t mobile. at&t also uses gsm so it should work on at&ts network also.
spot123a said:
Thanks for the info there another way of doing this. Which does not involve coding. It requires rooting, and loading a custom rom. If you root your phone using your methods then use flash fire to down load stang5litre version of lolipop. Afterwards you can go to the play store and download advanced signal status app. You can use this to toggle between gsm and lte and other networks. select gsm and you will be able to text but you will not have 4g lte . I got it to allow my s4 to send texts on t mobile. at&t also uses gsm so it should work on at&ts network also.
Click to expand...
Click to collapse
I had tried this method but that app gave me a message saying these "this function is not available on your device" so this method wouldn't work for me.
schultz915 said:
I had tried this method but that app gave me a message saying these "this function is not available on your device" so this method wouldn't work for me.
Click to expand...
Click to collapse
I had that same problem but that was with samsung default rom and rooted. After rooting it i was able to load one of stang5litre's custom roms. THis allowed me to acess that portion using the signal status app. His custom rom http://forum.xda-developers.com/galaxy-s4-verizon/development/stang5litre-ediition-5-0-t3132555
spot123a said:
I had that same problem but that was with samsung default rom and rooted. After rooting it i was able to load one of stang5litre's custom roms. THis allowed me to acess that portion using the signal status app. His custom rom http://forum.xda-developers.com/galaxy-s4-verizon/development/stang5litre-ediition-5-0-t3132555
Click to expand...
Click to collapse
Yeah I downloaded that one. Not sure why the app didn't work for me. How long ago did you do this method? Is it possible something has been updated since you did it?
I can get text messaging working now but have one other issue. I cannot change the default voicemail setting so that the phone doesn't try to dial *86.
I have two S4's, one on 4.3, and one on 5.0.1. On the 4.3 phone, I can edit the number the phone dials for voicemail no problem, and have full working voicemail with T-mo. But on the 5.0.1, I try to edit this, it allows me to change it, but after clicking OK to the prompt that the change was accepted, it goes back to *86.
The 5.0.1 phone also does not show any notification when a voicemail is left, the 4.3 phone does...
EDIT: HOLY CRAP NEVERMIND, changing the default network preference using your method also fixed the voicemail issue and now I can change the voicemail preference... WTF LOL... I've been working on this for HOURS trying to get this fixed. Why would changing the network type allow you to change the stupid voicemail setting??!
bast525 said:
I can get text messaging working now but have one other issue. I cannot change the default voicemail setting so that the phone doesn't try to dial *86.
I have two S4's, one on 4.3, and one on 5.0.1. On the 4.3 phone, I can edit the number the phone dials for voicemail no problem, and have full working voicemail with T-mo. But on the 5.0.1, I try to edit this, it allows me to change it, but after clicking OK to the prompt that the change was accepted, it goes back to *86.
The 5.0.1 phone also does not show any notification when a voicemail is left, the 4.3 phone does...
EDIT: HOLY CRAP NEVERMIND, changing the default network preference using your method also fixed the voicemail issue and now I can change the voicemail preference... WTF LOL... I've been working on this for HOURS trying to get this fixed. Why would changing the network type allow you to change the stupid voicemail setting??!
Click to expand...
Click to collapse
So you followed my method and everything worked for you? The dialer code for the hidden menu and everything?
I did all the steps and worked fine I'm using a Movistar carrier it's GSM I belive used the 2 bands speaking of LTE and got h+ working already but no signs of 4G so I belive need to test speed to see if I notice any diference
H+ is 4G bascially. I did a speed test on mine and it's right around the same speed. I'm glad to hear my method was helpful for someone. I hadn't received and confirmation from anyone that it worked.
Does anyone know how to get around the mms compression limitation? I can only send smaller mms files not larger on verizon phones through att network.
Sent from my SCH-I545 using XDA Free mobile app
dagwoodmash said:
Does anyone know how to get around the mms compression limitation? I can only send smaller mms files not larger on verizon phones through att network.
Sent from my SCH-I545 using XDA Free mobile app
Click to expand...
Click to collapse
I thought I saw something in either the build prop file or the csc features file. I can take a look in a bit for you.
schultz915 said:
First off let me start by saying that you will need root access on your phone which will void your warranty. So if you care about your warranty stop reading now.
Secondly I'll tell you right now this is only confirmed to work on this model of phone(sch-i545) with build LRX22C.I545VRUOF1 on AT&T. You will only have H+/4G signal NO LTE. H+/4G seems to have virtually unnoticeable speed differences in my opinion. If this is a deal breaker stop reading now. If you wish to try this on other networks feel free and let me know if it works. Now on with the show.
Step 1.
Gain root access on your phone. If you need to know how please check out this link. This is the method I used to root mine.
http://forum.xda-developers.com/galaxy-s4-verizon/general/root-of1-t3249971
Step 2.
Enable "hidden menu" feature on your phone.
To do this you will need to download Root Browser and superSU from the play store.
Once both are installed and set up use root browser(a window will pop up asking for you to grant it root access. Select yes or "grant") to access files.
Find and open file named efs. Inside that file open another called carrier.
Inside the carrier folder is a file called HiddenMenu
Open this file as a text Document using RB Text Editor
Once open it will say OFF. Change it to ON and then click save.
Next go back and find a folder called system.
Inside this folder scroll down and find a file called build.prop
Open this with RB Text Editor.
And the following text to the top of this page: sys.hiddenmenu.enable=1
Click save and close all apps and reboot phone.
Step 3.
Once phone has rebooted open your phone dialer and enter *#27663368378#
A service mode window will open up.
Click on LTE
Then click on PREF MODE Set
Then click on GSM_WCDMA_ONLY
Close and reboot phone.
Once your phone loads back up you should have H+/4G (depends on your area) and you should be able to send and receive text messages, make and receive calls.
You will need to set up an APN for AT&T if you didn't already after you rooted your phone. Settings for those can be found on AT&T'S website.
After you reboot a window will pop up asking you to chose a network. Click cancel.
Like I said in the beginning if you want to try this with other carriers feel free to let us know how it works for you. If you have any issues with this method or have questions feel free to ask. Good luck and I hope you are pleased with my method.
Click to expand...
Click to collapse
Alternatively, you can download and install "phoneinfo" by vndnguyen from the PlayStore. Since your phone is already rooted, you can use the "Secret Codes" menu to display all the secret codes and access the menu that was referenced from dialing *#27663368378#. (Just another way to display the hidden menu if you don't feel comfortable editing the system files.)
APN settings for Tracfone as of 4/22/2020
For those who love their SCH-I545s and don't feel like switching phones just because Verizon killed off their CDMA, you may (depending on coverage) be able to use the phone with TracFone /AT&T (AT&T-compatible SIM), until early 2022, when AT&T plans to kill their UMTS/HSPA. I have done this, and after working through the SNAFUs with TracFone, my SCH-I545 is fully working. Voice, Data, SMS, MMS are all there, just a little slower than 4G/LTE, but quite tolerable in my area. I have a Sony Experia XZ2 Compact, and it gets 4G/LTE (with same SIM/APN settings), but I am mothballing it and sticking with my SG4, for now.
*After* you put the AT&T SIM in (not sure if I activated it first), you can add a new APN with the following settings:
NAME: TRACFONE
APN: RESELLER
AUTH_TYPE: None
MMSC: http://mmsc.mobile.att.net
MMS PROXY: proxy.mobile.att.net
MMS PORT: 80
MMS_APN_TYPE: default,mms,supl
-------------------------------------------------
MVNO TYPE: GID
MVNO VALUE: deff

At&t go phone unlock help

I have unlock codes for some A32's but the phones require the ATT app to be used to unlock device.
I even input some # codes to allow manual entry of unlock code but still did not work. How do you circumvent the ATT unlock app?
Thanks.
If it helps the phone is showing APP/APP/APP
appaently the prepaid units use CSC APP. Tried changing CSC to ATT and still did not work. It is almost as if the unit needs to be changed somehow to ATT instead of APP. I tried it as ATT/ATT/APP didn't work.
Is there anyway to change the original carrier info on the unit?

Unable to connect to my mobile network

I recently purchased a refurbished phone Samsung Galaxy S21 5G. I just got it yesterday, and found that I am not able to use my mobile network. The sale said it is factory unlocked, and according to the descriptions, it should work just fine with my US Mobile SuperLTE network as well. When I switched on the phone, I see Verizon on the screen and so, I assume that it was locked to Verizon in the past.
When I tried to change the network settings, specifically the APN settings, I get the message "Access Point Name settings are not available for this user." The three dots on the top with reset to default is also greyed out along with Network mode in the previous page. When I click Network Operators and try to connect to the network manually, I am only able to connect to Verizon Wireless and no other. But, calling and messaging seems to work fine. Is it that the unlock process has not been completed properly? Did any of you face the same problem before? It would be great if there is something that I could do to unblock the APN settings as the rest of the phone works really well. The specific model is SM-G991U.
Thanks!
Aisp said:
I recently purchased a refurbished phone Samsung Galaxy S21 5G. I just got it yesterday, and found that I am not able to use my mobile network. The sale said it is factory unlocked, and according to the descriptions, it should work just fine with my US Mobile SuperLTE network as well. When I switched on the phone, I see Verizon on the screen and so, I assume that it was locked to Verizon in the past.
When I tried to change the network settings, specifically the APN settings, I get the message "Access Point Name settings are not available for this user." The three dots on the top with reset to default is also greyed out along with Network mode in the previous page. When I click Network Operators and try to connect to the network manually, I am only able to connect to Verizon Wireless and no other. But, calling and messaging seems to work fine. Is it that the unlock process has not been completed properly? Did any of you face the same problem before? It would be great if there is something that I could do to unblock the APN settings as the rest of the phone works really well. The specific model is SM-G991U.
Thanks!
Click to expand...
Click to collapse
So, you need to go into the settings menu and find about phone, software info. What you want to find is the CSC information.
It will basically look something like this: XAA / XAA-XAA / XAA (or some other letters like VZW or ATT or TMB etc etc.
What taht will tell you is very helpful in determining what rom the phone is running and what kind of device it was originally. Find that in your device and post it and people will help you to figure out what it means.
AsItLies said:
So, you need to go into the settings menu and find about phone, software info. What you want to find is the CSC information.
It will basically look something like this: XAA / XAA-XAA / XAA (or some other letters like VZW or ATT or TMB etc etc.
What taht will tell you is very helpful in determining what rom the phone is running and what kind of device it was originally. Find that in your device and post it and people will help you to figure out what it means.
Click to expand...
Click to collapse
Thank you so much for your reply. I looked through the software section in the about section. I found the following codes about the rom.
Aisp said:
Thank you so much for your reply. I looked through the software section in the about section. I found the following codes about the rom.
Click to expand...
Click to collapse
So the csc info is complicated, I'm no expert on it. But it does look like the OYN indicates it's a multi csc rom. It does have XAA as a part of the code, and that indicates it's 'open' for that specific part. But all the others are VZW. So it's running a vzw rom, obviously.
Your sim US Mobile uses both verizon and t-mobile networks. So it working for calls and texts makes sense, as a vzw phone. You could use patched Odin and flash a different (open) rom, but first you should verify that the device really is unlocked from vzw.
Best way to do that would probably be to insert another carriers sim card and see if it can make calls / texts. If not, it's not unlocked. But are you saying everything works now except mobile data? IOW, no internet access?
I had an international sim card at hand and I put it in. Interestingly the APN settings are no longer blocked. But, I do get a notification from setup wizard saying the inserted sim is not from Verizon and some services may not be available. But, messaging still seemed to work and I was also receiving 4G.
Aisp said:
I had an international sim card at hand and I put it in. Interestingly the APN settings are no longer blocked. But, I do get a notification from setup wizard saying the inserted sim is not from Verizon and some services may not be available. But, messaging still seemed to work and I was also receiving 4G.
Click to expand...
Click to collapse
Oh then yer okay. That message from verizon can be gotten rid of a couple of ways; 1) use adb commands to disable the specific packages 2) use patched Odin and flash a different rom
VZW is the only rom I think that does that, and it's very annoying. I don't remember exactly which packages have to be disabled, but search google and use xda and vzw in keywords and u should find it.
The 2nd option would be my choice. It would do away with vzw crap and with an open rom you may find volte and vowifi will work also.
cheers
Thank you so much for your reply. That sounds great! To just give it a try, I tried putting in a TMobile sim and phone restarted to install software for TMobile. After that the APN settings were unlocked and now I am also able to connect to the internet using my US Moblile sim. The only problem is the the network mode is greyed out.
This rom I think only recognizes network from major telecom providers. So, just flashing with an unlocked rom would just help to unlock all the features and also remove telecom specific crap. I will try to flash it today.
Thank you again!
I also just flashed the stock firmware which is fully unlocked. And there is no bloatware from telecom OEM's. I am now able to use the network and set the APN's, but the Network Mode is still greyed out. Is it possible to know why? I am guessing that if the phone is fully unlocked, I should be able to change the Network Mode. Is there any other info that I can give you to help understand what is happening? I do not see vowifi as well.

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