[Q] unlocked Samsung Galaxy S II Skyrocket with foreign SIM - AT&T Samsung Galaxy S II Skyrocket SGH-I727

I got Samsung Galaxy S II Skyrocket from AT&T rooted it and unlocked it using code purchased online. During unlock process I've inserted foreign SIM card and entered provided code. It seems to went OK and on subsequent reboots with this card it no longer asks for the code. The card is recognized and I see foreign phone number in Phone Info screen in Settings. However I noticed 2 problems:
1. The phone does not register on mobile network with non-AT&T SIM. The same SIM in old Nokia phone registers on T-Mobile network.
2. In Settings/Wireles&Networks/Mobile Networks/Network Operators I have only one greyed out item "Default Setup". I could neither change or add anything on this screen. I was expecting to be able to select manually mobile network there.
Anybody having similar problem? I am planning to travel aboard with this phone soon and I wan to be sure I will be able to use it with non-AT&T SIM overseas.
Thanks!

I had this issue with my Atrix. I rooted and unlocked the sim with code purchased online. I used it is US with Tmobile with no issues, but in India it wont show any bars for any network, even with AT&T sim with international roaming enabled. I checked google and there was a method where you install some software and with USB cable attached. I had to unlock the phone with QPST software.
http://forum.xda-developers.com/showthread.php?t=992635
After following the procedure, the band was unlocked and I was able to see all the networks in India. I was even able to use AT&T Sim with vodafone network in roaming.

band selection
Thanks for the info. I think we are on to something here. Apparently the problem is in band selection preference. I have not found a way to run AT commands on my Samsung Galaxy II modem yet, so I have searched for other methods. Here is what I found:
Open the Phone Screen and Type the following code:
* # * # 1 9 7 3 2 8 6 4 0 # * # *
The phone will automatically take you to a screen called:
SERVICE MODE
AND YOU WILL SEE THESE OPTIONS:
----------------------
[1] DEBUG SCREEN
[2] VERSION INFO
[3] UMTS RF NV
[4] GSM RF NV
[5] AUDIO
[6] COMMON
----------------------
all these options are written very very small so you will have to touch the screen very accurately to get the right one... so select them in the following order:
[1] Debug Screen
+
[8] Phone Control
+
[7] Network Control
+
[2] Band Selection
Once you Tap on "Band Selection" you will have a screen stating these 4 Options:
-------------------------
= BAND SELECTION =
[1] Automatic [*]
[2] WCDMA Band []
[3] GSM Band []
[4] Combi Bands []
-------------------------
However on my AT&T Galaxy S II when I choose "Band Selection" menu item it says:
"RAT selection option is restricted"
I will try to research this further to find a way around this, but apparently this is the problem. I think my foreign SIM is recognized, bug it is not 3G-capable and the phone is locked to WCDMA/3G band. Please correct me if I am wrong.

flash a rogers modem. The att modems are rat locked

Dialing *#*#4636#*#* I can see that my band selection is set to "Automatic". So perhaps it is locked, but to Automatic mode. This means my SIM not registering on network has nothing to do with this.

go here http://www.m-s-j.net/skyrocket/Radio_RIL__I727RUXKJ7.zip
And look at attachd screenshots
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"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
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Here is the skyrocket radio thread http://forum.xda-developers.com/showthread.php?t=1384865

So you think that my SIM not working will be fixed by flashing this radio? If yes I will try to flash it.
BTW, how do I flash it?

You can not change bands on a rat locked radio . Go to that thread i posted above. And if your phone is deffinately network unlocked then yes it should work. You need to be rooted and have cwm recovery.

I've been using my Skyrocket overseas since December, and Never received any problems, I don't think there should be a problem!

Related

Does flashing rom's or odin re lock the infuse?

Okay, so I have an unlocked Infuse..... does flashing roms or odining back to stock re lock it? Or does it not mess with those settings at all?
Thanks to anyone that helps, not very familiar with gsm devices.
H2o sim and unlock
I'm a newb but, I just went through leaving AT&T for H2O and last night I got a T-simMobile . The H2O card was mailed to me and all I had to do was .... Menu >settings>wireless networks>mobile networks> access point names> press menu key and select New APN> select name> enter- H2O WAP, and tap ok. next select APN and enter att.mvno- tap ok > in proxy enter 66.209.11.33 tap ok ,then port enter 80 > at the bottom go to APN type and choose internet or internet+mms+supl and then hit the menu button and click save. It will back you out to APN page. Tick the dot next to H2O WAP and it should light up. Done. you may have to go to your browser open it, hit menu button, choose MORE, Settings, Set Homepage and enter google as homepage , hit ok , and poof!! H2O Should work. I did it on both,my Captivate and my Infuse 4G , both originally AT&T phones. Now, about the T-Mobile sim card... I just did this last night on my Captivate. Oh, it's rooted and running on Watsa's APEX 12.0 ROM (very cool). If you need info on T-M sim card on AT&T phone ask and I will tell, I don't have time now on lunch break.
khkaiser13 said:
I'm a newb but, I just went through leaving AT&T for H2O and last night I got a T-simMobile . The H2O card was mailed to me and all I had to do was .... Menu >settings>wireless networks>mobile networks> access point names> press menu key and select New APN> select name> enter- H2O WAP, and tap ok. next select APN and enter att.mvno- tap ok > in proxy enter 66.209.11.33 tap ok ,then port enter 80 > at the bottom go to APN type and choose internet or internet+mms+supl and then hit the menu button and click save. It will back you out to APN page. Tick the dot next to H2O WAP and it should light up. Done. you may have to go to your browser open it, hit menu button, choose MORE, Settings, Set Homepage and enter google as homepage , hit ok , and poof!! H2O Should work. I did it on both,my Captivate and my Infuse 4G , both originally AT&T phones. Now, about the T-Mobile sim card... I just did this last night on my Captivate. Oh, it's rooted and running on Watsa's APEX 12.0 ROM (very cool). If you need info on T-M sim card on AT&T phone ask and I will tell, I don't have time now on lunch break.
Click to expand...
Click to collapse
So did you have to unlock your device before you got it working on H2O? Or did it just work?
Updated OP question
You might get your answers here.
http://forum.xda-developers.com/showthread.php?t=1440528
qbking77 said:
So did you have to unlock your device before you got it working on H2O? Or did it just work?
Click to expand...
Click to collapse
I believe AT&T MVNO SIMs will work on phones originally sold for AT&T without the need to unlock the phone.
According to H20's website, you can download an app that will set up your APN from the market.
Indeed. I'm running H2O on my inspire.
My settings that work just fine:
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"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
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"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my HTC Inspire 4G using XDA App

[Q] Maximum connection speed = 3G? Why?

Hello,
I've just followed the procedure explained in this thread LINK in order to enable the network sharing option on my Samsung Omnia 7, but now there's something a bit strange.
Also, I want to thank the author of that procedure (can't post in his thread because of the limitations of my new account).
If i tap the "Cellular network" tab in the phone settings now I see a new selection tab named "Maximum connection speed", wich I haven't got before doing the procedure:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
(before the update I only had got - at this height of the tab - Roaming options and Network selection...no trace of that "Maximum connection speed")
If i tap the selection box i can choose from 2 options: E (edge) and 3G.
I don't see H (hsdpa) option and now 3G is the chosen option.
If i use my connection i see the 3G icon at the top of the screen become H, as always, but I'm confused and I don't know if the navigation speed is the same as before...
Is that normal? How can I test my speed?
By the way I made a backup, so I can restore my phone if it's needed!
3G is HSDPA (in some countries 3.5G/HSDPA+). 3G is only the network used for texting and video/calling, whereas mobile internet is connected through the form of HSDPA via 3G network. It's like 2G/EDGE and 4G/LTE.
I thought that selection would have affected the navigation speed, but not in this case.
Thank you!
Dicoluc said:
Hello,
I've just followed the procedure explained in this thread LINK in order to enable the network sharing option on my Samsung Omnia 7, but now there's something a bit strange.
Also, I want to thank the author of that procedure (can't post in his thread because of the limitations of my new account).
If i tap the "Cellular network" tab in the phone settings now I see a new selection tab named "Maximum connection speed", wich I haven't got before doing the procedure:
(before the update I only had got - at this height of the tab - Roaming options and Network selection...no trace of that "Maximum connection speed")
If i tap the selection box i can choose from 2 options: E (edge) and 3G.
I don't see H (hsdpa) option and now 3G is the chosen option.
If i use my connection i see the 3G icon at the top of the screen become H, as always, but I'm confused and I don't know if the navigation speed is the same as before...
Is that normal? How can I test my speed?
By the way I made a backup, so I can restore my phone if it's needed!
Click to expand...
Click to collapse
I also noticed this... But I also noticed that, near the bars that represent the signal quality, there was written 3G+
lordmago said:
I also noticed this... But I also noticed that, near the bars that represent the signal quality, there was written 3G+
Click to expand...
Click to collapse
Yes, it's a Samsung related thing.
They chose to use 3G+ instead of H to refer at HDSPA...meh.
By the way, using the "Advanced Configuration" homebrew I was able to change that weird icon from 3G+ to the classic H.
Ps. Magus, sei tu? XD
A few questions asked here:
Why did this option appear?
It's actually supposed to be there, but some OEMs or mobile operators hide it by default. Many homebrew tweaks un-hide it (it's just a single registry value).
What does it do?
It lets you force the phone to use 2G (including EDGE) instead of 3G (including HSPDA). There are two reasons you might do this: to save battery (3G is a battery hog, relatively speaking) or because you have a very marginal 3G signal but a strong 2G one and therefore actually get a better connection if you force the phone to use 2G.
How can I test my speed?
There are a number of ways. The marketplace has several apps for bandwidth testing (though some provide wildly inaccurate results). You can also tether your laptop to the phone (using either the USB cable and a small tweak, or using the built-in Internet Sharing feature over WiFi) and then use a standard bandwidth test site like http://speedtest.net (which uses Flash and is therefore not usable in the phone's browser).
Hope that helps!

[Non-root] Stock Verizon Note 5 APN Settings Editing

Hello Verizon Note 5 XDA members, I myself am a owner of the Verizon Note 5, eagerly awaiting, and looking for ways to gain root on this phone.
Unfortunately we do not have it fully as of yet. So in the mean time I have been messing around, looking for things I can do without rooting.
I am unsure if anyone else has found this method, or posted it to any other websites, however I have not noticed this posted on XDA nor have I found any accurate
posts on how to change APN settings, unless the phone is from a different carrier other than Verizon.
TL;DR - Here's a method I believe I found for changing APN Settings without root.
My phone specs is the first screenshot in the steps.
I DO NOT TAKE ANY RESPONSIBILITY TO ANY AND ALL DAMAGES TO YOUR PHONE THAT THIS MAY CAUSE. DOING THIS YOU ACCEPT AND USE THIS METHOD AT YOUR OWN RISK WITHOUT HOLDING ME LIABLE FOR ANY DAMAGES.
First things first, I am unsure if this will work for lower versions, or any other model. Or if any other phone may contain this. My model and version is this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Also note, my APN Settings are greyed out, blocked, be whatever you want to call it.
Step 1. Clear all recent apps, or just make sure you do not have settings opened in the background processes. As this will stop you from reaching the bypass in step 6 and it will show the usual greyed out/blocked add button.
Step 2. Download Activity Launcher, or use any software that allows launching of app activities. I suggest Activity Launcher only due to this is the app I was using at the time I found this.
Step 3. Open Activity Launcher, and make sure All Activities is selected in the top left corner. It could take a few seconds, to a minute to load them all depending on how many apps you have installed.
Step 4. Locate the activity called "com.test.LTEfunctionality" without quotation marks. It should be near the bottom of the list in Activity Launcher. Expand the drop down by clicking on the activity once so it looks like the screenshot.
Step 5. Click on LTE Test to launch this activity. What launches should look like this screenshot below.
Step 6. Scroll down until you see LTE APN Setting as in the screenshot below. Then click it.
Step 7. Profit from changing your APN Settings to however you please.
To enable the APN, you must select it from the screen on Step 7, it will not show up in your usual Settings>Mobile Networks>Access Point Names. It will also appear as you have no APN selected in the usual APN screen. To modify your APN's again, you will have to go through all of the above steps again starting from Step 3.
Sorry, if I'm not in the know but why would I want this?
Thanks
pbman1953 said:
Sorry, if I'm not in the know but why would I want this?
Thanks
Click to expand...
Click to collapse
You don't.. There's no need to change your APN (Access Point Name) when your phone is already set up to properly receive calls, texts and data. This will not do anything towards helping to root at all.. You would need this if you were trying to get a phone that you already paid for onto Verizon or some other carriers network. Other than that there's not much use of this.
I'm using a verizon version on Cricket/AT&T. When I inserted my sim card I had to manually enter my APN info and all i had to do was scroll through settings till i found the mobile networks. Then once inside that menu I hit APN. It automatically let me enter my info without having to go through all of what you were explaining...
I am currently deployed and brought my Verizon Note 5. I purchased a prepaid data SIM and had to edit the APN settings for it to work. I didn't have to go through all these crazy steps either, I don't know what this person is talking about.
Sent from my SM-N920V using XDA-Developers Legacy app
I have a Verizon note 5 and I want to change to a free APN in my area. This didn't work for me but I'm going to try some variations . My APN is locked out like yours. Thanx
I finally got my APN to change
I tried this method and they must have patched it on the Dec 2017 software version because it did not open the APN Test at step 6..
What I did was put in am ATT sim card, went in to APN settings, Added an APN with the "TRACFONE.VZWENTP" APN settings and saved it. (the saved APN disappeared from the list after saving) Pulled out the ATT sim card, Reinserted my PagePlus sim card and restarted. It worked, I Now Have DATA!
The APN settings are still greyed out now and I can not change them but phone is using the APN i set while I had the other sim card in the phone so its working great for me!
I was excited, but unfortunately this did not work for me. I'm on Straight Talk and I updated to Nougat with Smart Switch, but now my data doesn't work. Would be super nice if I could change my APN setting and get it to work again. Verizon claims they don't lock their 4G LTE devices, but this definitely seems like a way of locking it.
Hey I just loaded a FreedomPop SIM card with no real problem. I swapped out the Sim card and then did a factory reset. It still tried to connect to Verizon but FP ran a setup program that allowed me to add a new APN. I them loaded Samsung package disabler 11.5 and killed the setup wizzard from Verizon. No more error messages.

Themes / Apps / Mods *Guide* Moto G Stylus 2021 XT2115 Boost Mobile LTE Data fix

Have you noticed that your data doesnt always work in areas that you get almost perfect signal? Well this guide will help.
Get your dialer open. were gonna us a ussd code!
dial *#*#3282#*#*
(you should get this screen)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
next you want to tap on LTE button and the next screen will occur
first we will tap on VIEW
make sure you know your MSL code for a later step
(BOOST Mobile normally has aa code of 000000 for their device for easy programming)
(View Screen)
the next step you tap on "Bands Priority" and get ready to change some values.
your values for each band should look like this below (tested on 2 devices and no issues so far)
thats it for that part of our journey. now we have to enable other band functions in the LTE Edit menu.
close that window and start another instance of the ussd code we used earlier and this time when we tap on LTE also tap on Edit (not view).
the next screen should look just like this
now type in your msl code
*again if you have boost mobile it will more than likely be 000000*
000000
the next screen you want to have has a bunch of Upload and Download enablers. Next 2 pictures.
you will want everything enabled that i have above. (pretty much all but 2)
the 2 left not enabled are
CA DL 26A-41A Enabled = off
and
CA DL 38C Enabled = off
they do not stay on for long if you turn them on.
Finally use this USSD dialer code
*#*#4636#*#*
then tap on Phone Information
next you will get the screen below and we aer going to change 1 thing
tap on "Set Preferred Network Type"
you will want to change the type to LTE/CDMA/EvDo/GSM/WCDMA(PRL)
afte that your finale step is to restart your device. and Voila you should have better data speed by up to 100mbps+/- a second.
Enjoy
donate to me if you like on paypal
@sosthenisRR
Why does this work, and would it also work the same for the boost 5g model?
EDIT: I also want to add, it's probably a good idea to take a screenshot of your existing values before changing them if you need to switch them back.
It works because it puts that natural bands for boost mobile in the order to receive and send data first. They are off with a 0 by default. Which I thought was weird . I only added bands 25,26 and 41 to the queue operating first to capture packets from a native source tower. The UL and DL options enable those frequencies to use the signal sent and received. I enabled all I could by default so I can capture more packets over the network with more possible instances.
As for if it will work on the 5g. I am going to test that tonight and will post in the 5g forum. I do not know because I haven't had much experience besides reading at the moment.
I did the changes on my 5G, service still works, however no noticeable difference in coverage or speed, I did have to set a few to 0 that were enabled before
ShayBox said:
I did the changes on my 5G, service still works, however no noticeable difference in coverage or speed, I did have to set a few to 0 that were enabled before
Click to expand...
Click to collapse
I probably wouldn't have done that because they're are 5g bands that were enabled like 71 and 12. Try adding the missing bands into the queue gradually and watching for cell tower switchover in phone information. So I would suggest a revert and slowly test each feature/band that you change. Don't go full out because it may cause a conflict with 5g capabilities.
Here is the original band queue for the 5g variant boost mobile. (So you got em in case)
Band 1 is marked as 0.
If you do decide to run with this then let me know how your testing goes and get over to the moto g stylus 5g forum and post there. Wouldn't mind the help testing on 5g as I only have 1 right now. DM/PM me with updates if you can.

Question Android 12 Disable 5G

Is it possible to disable 5G on the Galaxy S21+ on Android 12 & One UI 4.0? I've searched through the Android 11 method of Settings>Connections>Mobile Networks> Network Mode but apparently that has been removed all together. I couldn't find it in Dev Options either.
Could it be hidden somewhere else?
Does anyone know the ADB command?
{
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"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
To anyone else wondering how to do this, I ended up using an app called Samsung Band Selection to remove the use of the 5G band.
@USAMac , I have used the Samsung Band selector for some other purpose, can you detail how to remove the use of the 5G Band.
Would appreciate your time.
sr2021 said:
I have used the Samsung Band selector for some other purpose, can you detail how to remove the use of the 5G
Click to expand...
Click to collapse
Happy to help. I used Samsung Band Selection straight from the Play Store. Once opened, 'Launch Band Selection'
Weird...my T-Mobile S21+ with Android 12 has this option. Settings -> Connections -> Mobile Networks -> Network Mode -> "LTE/3G/2G (auto connect)"
I have to use this a lot cause 5G around here isn't that great in some places.
DrRyder said:
Weird...my T-Mobile S21+ with Android 12 has this option. Settings -> Connections -> Mobile Networks -> Network Mode -> "LTE/3G/2G (auto connect)"
I have to use this a lot cause 5G around here isn't that great in some places.
Click to expand...
Click to collapse
Maybe this was just a Verizon modification
sr2021 said:
@USAMac , I have used the Samsung Band selector for some other purpose, can you detail how to remove the use of the 5G Band.
Would appreciate your time.
Click to expand...
Click to collapse
I wanted to share with you that I ended up switching my connection type to GSM/WCDMA/LTE because in my area, even LTE is not always present. I've personally found this to be a lot more flexible in service and took away the occasional G I would see next to my signal bars. Hope this helps!
I'm also experiencing the same thing, does anyone know a solution?
BagusPambudi said:
I'm also experiencing the same thing, does anyone know a solution?
Click to expand...
Click to collapse
Experiencing what?
DrRyder said:
Weird...my T-Mobile S21+ with Android 12 has this option. Settings -> Connections -> Mobile Networks -> Network Mode -> "LTE/3G/2G (auto connect)"
I have to use this a lot cause 5G around here isn't that great in some places.
Click to expand...
Click to collapse
USAMac said:
Maybe this was just a Verizon modification
Click to expand...
Click to collapse
Hi
It has always been available in the exynos phones too
MAX 404 said:
Hi
It has always been available in the exynos phones too
Click to expand...
Click to collapse
I was referring to the removal of Network Mode
There's another app called Network Mode Samsung that gives greater details on what the bands mean:
GSM ALL -> 2G GSM only (GPRS/EDGE)
WCDMA ALL -> 3G WCDMA only (UMTS/HSDPA/HSUPA/HSPA/HSPA+)
LTE ALL -> 4G LTE only
GSM/WCDMA -> 2G / 3G only
WCDMA/LTE -> 3G / 4G LTE only
Band Selection Mode -> Manually choose 2G/3G/4G Bands
I intentionally ordered a 4G model, but they sent me a 5G model samsung flagship. It isn't what I ordered. However, what happened was I thought I was using a safe 4G phone but after holding it a minute or two I started getting this splitting headache, and I don't get headaches. Then I looked at the About phone section and discovered they sent me a 5G model! That's not a placebo effect folks. I didn't know I was using a 5G phone until AFTER I got the symptoms - headache, fatigue, foggy brain, head pressure. All symptoms of 5G radiation. I never had any of these symptoms before.
Well this phone is going back immediately. But I did take the opportunity to test the app listed.
I installed the Samsung Band Selector app and it does allow to switch the bands. However, I'm not sure if it actually does disable 5G, I was trying to figure out a way. I didn't add in a sim card, so Signal Spy didn't work. Maybe I'll add a sim card just to check it.
But anytime I took off airplane mode the headache gets worse, in fact I am keeping this phone away from me, I don't want the 5G phone anywhere near me, I'm waiting on a return label.

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