Flash S7 Edge to unlock and use on GSM ATT - Sprint Samsung Galaxy S7 Edge Questions & Answers

I was told you can flash something on the Sprint S7 Edge to allow it to work on GSM ATT network. Can anyone clarify?

Yes, that info is in the EFS partition.
Which has the potential to brick your phone or erase your IMEI which means it's unusable.
If you want to try, find a program to backup this partition.

Related

[Q] Help with Modem - Model: WIND (SM-N900W8)

I am really new to the world of ROOTING & FLASHING and have already bricked one device. I have followed a lot of information provided by the gurus on here but am at a standstill with my new device as I cannot afford to brick a second one due to my lack of knowledge when it comes to this stuff.
I do not wish to root my device at this time but did read the post talking about "regional" lock. It seems this is only relevant if people unlock their device through the rooting method. Since my device is from WIND Mobile (unactivated) and I purchased an unlock code from cellunlocker.net, I assume I can input my Telus SIM and I would not have to worry about a regional lock? As I understand, the purchased unlock code would supersede the regional lock correct?
As for Telus... When I unlock my WIND device, I assume it will be like my original where Telus voice worked but data was limited with 3G. This was due to the radio band for LTE being crippled in the device. I was told without rooting, I could still use the device with LTE but would have to FLASH the LTE modem through the ODIN software. When I look at the link which provides "flashable" modems, there is nothing there for my specific model.
AllGamer posted a modem (.bin) file for the Puerto Rico modem which supports LTE but confirmed with me this is not a file which can be flashed through ODIN and has to be packaged (or something to this affect). This is all too new to me and so if anyone could provide the steps to FLASH a compatible LTE modem onto my device without rooting so I have LTE support enabled, this would be great!
Thank you!
Issue is resolved. Currently, you cannot just flash the modem and must root and install a custom ROM supporting LTE. Once this device has been out long enough, the possibilities of modification will be greater but for now, my device from WIND works with Telus and has LTE data.
First, Telus, Rogers, Bell, Wind....all these carrier carry the same model of Note3 and running the same ROM
all you have to do is pull out your Wind sim card and do a factory reset. Then put in your Telus Sim card.
Phone will find Telus CSC setting and set it up as Telus phone.
As long your phone is sim unlock with Wind Mobile, any Canadian carrier should be working with your phone
About LTE, maybe there just don't have any LTE signal in the area, or your LTE setting has been turn off.
All you need to do is go into setting check under network and see if the phone is running GSM/CDMA/LTE or GSM/CDMA only, just switch between 2 and you will get your LTE with Telus LTE sim.
You don't have to worry about region code once your purchase unlocked online. region lock only apply when the phone never activate with local sim card and trying to activate with sim card from other countries. Just put in your Telus SIM and setting up the phone. Wind has this phone becuz it support AWS network, it doesn't mean the phone come with different modem!
Since you are not looking to root your phone or anything....there really no need for any flashing!
yuenluv said:
First, Telus, Rogers, Bell, Wind....all these carrier carry the same model of Note3 and running the same ROM
all you have to do is pull out your Wind sim card and do a factory reset. Then put in your Telus Sim card.
Phone will find Telus CSC setting and set it up as Telus phone.
As long your phone is sim unlock with Wind Mobile, any Canadian carrier should be working with your phone
About LTE, maybe there just don't have any LTE signal in the area, or your LTE setting has been turn off.
All you need to do is go into setting check under network and see if the phone is running GSM/CDMA/LTE or GSM/CDMA only, just switch between 2 and you will get your LTE with Telus LTE sim.
Since you are not looking to root your phone or anything....there really no need for any flashing!
Click to expand...
Click to collapse
You are only partially right with your response. Look at my other threads with how to get things functional. First, the phone is the same model for each Canadian carrier but as per the agreements between the carriers and Samsung, specific bands have been crippled. I unlocked my Note 3 so yes, the Telus SIM will be recognized upon a factory reset and will pick up the correct APN settings but since the LTE modem has been crippled, the device is great for voice but has sloooooow 3G data.
In order to get the device working with LTE, you must flash an LTE capable modem onto the device. Since this device is new on the market, no modem (.bin) file has been made flashable. At this point, the only option is to root your phone. Even when rooting and installing the Telus firmware (ROM), this will still not enable LTE as there's a safeguard in the device. Once the phone has been rooted, you must go into the regional settings for the device and select the carrier setting for the ROM you just installed. This will format the device and reboot with your carrier setting thus enabling LTE/WCDMA/GSM (auto connect) within your network settings menu. Only at this point, will you have true LTE capability otherwise, you're using a phone with hindered capabilities. Using Telus on 3G is like driving a Corvette with a Cavalier motor.
cellrama said:
You are only partially right with your response. Look at my other threads with how to get things functional. First, the phone is the same model for each Canadian carrier but as per the agreements between the carriers and Samsung, specific bands have been crippled. I unlocked my Note 3 so yes, the Telus SIM will be recognized upon a factory reset and will pick up the correct APN settings but since the LTE modem has been crippled, the device is great for voice but has sloooooow 3G data.
In order to get the device working with LTE, you must flash an LTE capable modem onto the device. Since this device is new on the market, no modem (.bin) file has been made flashable. At this point, the only option is to root your phone. Even when rooting and installing the Telus firmware (ROM), this will still not enable LTE as there's a safeguard in the device. Once the phone has been rooted, you must go into the regional settings for the device and select the carrier setting for the ROM you just installed. This will format the device and reboot with your carrier setting thus enabling LTE/WCDMA/GSM (auto connect) within your network settings menu. Only at this point, will you have true LTE capability otherwise, you're using a phone with hindered capabilities. Using Telus on 3G is like driving a Corvette with a Cavalier motor.
Click to expand...
Click to collapse
In the case, just download Telus ROM from samsungupdate and flash it with Odin3
yuenluv said:
In the case, just download Telus ROM from samsungupdate and flash it with Odin3
Click to expand...
Click to collapse
LOL :laugh: I have already rooted, flashed the Telus ROM and enabled LTE on my device. It is a little more complicated than what you've suggested but yes, you are partially right. Even with the Telus ROM, you need to ensure you've enabled the radio/modem for LTE capability. Thanks for your suggestions!

ONly Edge after unlock

Hello Xda
I recently unlocked my device with the regon away apk. all went well, downgraded to mf3 modem and unlocked, however after unlock, all i get is edge internet, no lte or H+. I think i tinkered with the utms and set it to gsm only before unlocking, i dont know if thats whats casuing the issue but please someone help.
Try reflashing your modem and moduels? If worst comes to worst reflash your firmware. Once you sim unlock it wont go away even if you reflash firmwares via odin.

I don't have the nv_data.bin file on EFS directory

Hi ,
I don't have the file nv_data.bin on EFS directory , also I am always getting only 2G network on my Samsung Galaxy S4 I9505 and the IMEI is correct and I didn't backup the EFS folder while installing different roms previously.
Now I have to recreate the file or to have another way to write the frequencies again, it is rooted.
Please can you help.
Thanks in advance
In general, nv_data.bin no longer inhabits the /efs folder in Android 4.3 (?) or later, but is now in a hidden partition of the S4. If you haven't already attempted this, find the modem files for your device and flash them through Odin.
Strephon Alkhalikoi said:
In general, nv_data.bin no longer inhabits the /efs folder in Android 4.3 (?) or later, but is now in a hidden partition of the S4. If you haven't already attempted this, find the modem files for your device and flash them through Odin.
Click to expand...
Click to collapse
Mmm this is interesting , the thing is if what you claim is true then it has to be another thing that is causing the problem. Because I've flashed to many ROMs before custom ones and stock ones and the problem is always persisting. So whether I erased a file containing the frequencies or something like that. Also when I turned to Lollilop recently I flashed the Nand Partition with the PIT file and I had a problem with the wifi too but since I didn't the problem is solved.
What do you think?
Usually, the fix for baseband issues is to flash the same modem twice. I think the reason behind it is that there are two partitions devoted to the baseband and if the baseband image in the two partitions doesn't match you get disconnected. If this doesn't work, you may have to go into the service menu, assuming you're on a stock ROM, and change the network to enable LTE.
Don't ask me how to enable LTE via the service menu. After my first month owning the S4 and royally messing things up when trying to add LTE bands to my S4, I stay away from the service menu when on stock.
Strephon Alkhalikoi said:
Usually, the fix for baseband issues is to flash the same modem twice. I think the reason behind it is that there are two partitions devoted to the baseband and if the baseband image in the two partitions doesn't match you get disconnected. If this doesn't work, you may have to go into the service menu, assuming you're on a stock ROM, and change the network to enable LTE.
Don't ask me how to enable LTE via the service menu. After my first month owning the S4 and royally messing things up when trying to add LTE bands to my S4, I stay away from the service menu when on stock.
Click to expand...
Click to collapse
Mmm I tried everything but with no success!! I guess I have a serious problem! I read some articles that I have to be rooted and I have to add frequencies using EFS Pro but still I didn't find any good tutorial.
But If there is a two partitions how to correct things again and regain all functionalities.
Does anyone know how to wirte Bands on The Samsung Galaxy S4 I9505? I need it ... I am only getting the Edge signal while there is 3G and 4G in my country.
I misused it by installing different roms before and I guess that in some how I did erase some primary files.
Please help me out!
There are threads in the S5 forums that explain how to write bands, but when I tried it I screwed up the modem so bad that I ended up restoring my SIM lock. It took flashing a Jellybean modem and running RegionLock Away to restore my S4 to a usable condition. However, your issue isn't one that will be resolved by writing bands, because the S4 already includes all 2G and 3G bands by default. Even if you could write new LTE bands to the S4, you'd likely still have the issue of the S4 being stuck on 2G.
Strephon Alkhalikoi said:
There are threads in the S5 forums that explain how to write bands, but when I tried it I screwed up the modem so bad that I ended up restoring my SIM lock. It took flashing a Jellybean modem and running RegionLock Away to restore my S4 to a usable condition. However, your issue isn't one that will be resolved by writing bands, because the S4 already includes all 2G and 3G bands by default. Even if you could write new LTE bands to the S4, you'd likely still have the issue of the S4 being stuck on 2G.
Click to expand...
Click to collapse
So there is no way to solve the problem???
There are potential fixes, but none of them require attempted rewrites to the modem's low-level firmware. Try a SIM card from a different carrier. Check your APN to see if it's configured properly. Try changing your service from Autoconnect to WCDMA or GSM.
If none of those work, you'll have to start searching the forums for your answers, as your problem actually is a rather common one.
Oh wow. This is the EXACT same problem that I have.. I have tried flashing several modems, but to no avail, I have failed miserably.. I am from Sri Lanka with the i9505 model. Have you found a solution to this problem?

How to unlock my Samsung Galaxy S7 Edge?C

I just factory reset my phone after being in a bootloop, now it still is set to US cellular, how can I carrier unlock this phone? Can anyone help me with this?
I know that US Cellular is a CDMA network, as you can see hereMod Edit
I am not sure you can unlock it. Try inserting a GSM SIM card (AT&T, Metro or T-Mobile) and check the message you are prompted when trying to place a phone call.

SM-G935P flashed to Verizon

Last summer I successfully flashed an SM-G935P (Sprint) to Verizon. I put it on the shelf without ever trying to use in on Verizon's network. I decided to switch to it from my S6 the other day. Before I did anything else I ran all system updates (via a wireless connection). All went well until I put in my already activated Verizon sim card. I get no coverage at all. Noda. The firmware loaded is G935VVRS8CRK2. Everything in settings =>About Phone looks right. Can anyone shed some light on what I may have done wrong?
P.S. I did try a Sprint sim card and it did show a 3g connection during initial setup. Is something left over from Spring that I need to wipe?
Flashing G935V firmware just converts your firmware to VZW (bootloader, radio, system) and you need to unlock your phone with Sprint still, but if you updated to Update 28 for S7 you can't go back to Sprint's firmware because the Update 28 contains bootloader v9!
TL;DR: you just need to unlock your device via sprint.
Here's a link to sprints unlock thing: https://www.sprint.com/en/legal/unlocking-your-sprint-device.html
The only thing is this, when I insert my Verizon sim card I am not prompted for an unlock code. Also, Sprint automatically unlocks their devices after ~50 days of active service on an account with good standing. Am I wrong?
Simple yet aggravating
So, the main issue I found after unlocking the Sprint G935P is (and I'm sure this is the problem you're having) you have to manually put in the APN settings to connect to Verizon.
Just Google "Verizon 4G LTE APN settings 2020" and enter what it tells you

Categories

Resources