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Hi,
I have rooted my samsung S6 set using pingpong root.
Im plagued with the battery drain issue, so i will like to revert back to stock to see if there is any OTA updates for my phone.
But to do that, i will need to unroot and then flash a stock firmware to get the ota working once again, right?
Now how do i go about choosing a firmware for my phone, seems like there are many options to be chosen from in sammy mobile webbsite.
Are there any difference between if i were to choose my country against another country version?
In what cases will i potentially brick my samsung s6?
If you flash a stock ROM with Odin, you won't need to worry about unrooting first, as flashing will do that for you. You may like to enter recovery and factory reset just to clear anything that may be left behind though.
And as for selecting which one to flash, it's generally best to go for your own country's one, as they are usually optimised for your local differences (like the radio, I believe). The main thing to look out for though, is to only flash a ROM for your actual device model. For example, if your model number is SM-G920F, only flash ones for that actual model.
If you go to the general section in the S6 forum, there is a thread with the main selection of carrier ROMs there. Check that out
So, this has probably been answered before, but I am honestly too busy (also lazy due to the extreme workload of my professional life) to search through thousands of threads for the answer to my issue.
I got a SM-G955U that was originally used on the sprint network from a guy on Craigslist (Mistake number 1). I immediately performed the carrier switch tasks to change it to a SM-G955U1. The firmware change was easy as pie, and the device runs smooth as butter right now. The issue I ran into is that it is telling me that I have to contact sprint to unlock the device. I am sitting here going, "Wait, what?"
So, I may have overlooked some details when I flashed the firmware. I am going to try reinstalling the firmware for XAA without using the Home_CSC file while I wait on replies to see if I can solve this issue with some tinkering. I am extremely tech savvy and I ha e been rooting devices and changing firmware files for a long time now, and I have been involved in a lot of development projects.
Anyway, my question is this: How do I go about removing the Sprint OMADM protocols. I assumed that flashing the firmware to the XAA firmware would have handled that, and as I said before, I either overlooked something simple when I flashed it over the first time, or there is something I missed all together.
I cant really go to Sprint about it since I am not a Sprint subscriber, and I dont know who to co tact at Sprint about this. Also, if the guy I got it from defaulted on his bill, then the device is probably black listed by them and they wouldn't unlock it for me anyway. Yeah, I know, this is stuff I should have looked into before I bought this damn thing (Mistake #2).
These are the details of the device just in case somebody has a solution:
S/N: R28J42MCXBT
IMEI:Removed for your saftey by @TheMadScientist
Brand: SPRINT (I don't know why considering I flashed the SM-G955U1 XAA firmware to it, and the SIM was not installed during this process).
Baseband: G955U1UES3CRE2
Kernel: 4.4.78-13001792
[email protected] #1
Fri May 4 11:57:40 KST 2018
Build number: R16NW.G955U1UES3CRE2
Android Security Patch Level: May 1, 2018
Android Version: 8.0.0
Any answers would be greatly appreciated since I have been tinkering with this thing on and off for about a month now.
Darkstar-Actual said:
So, this has probably been answered before, but I am honestly too busy (also lazy due to the extreme workload of my professional life) to search through thousands of threads for the answer to my issue.
I got a SM-G955U that was originally used on the sprint network from a guy on Craigslist (Mistake number 1). I immediately performed the carrier switch tasks to change it to a SM-G955U1. The firmware change was easy as pie, and the device runs smooth as butter right now. The issue I ran into is that it is telling me that I have to contact sprint to unlock the device. I am sitting here going, "Wait, what?"
So, I may have overlooked some details when I flashed the firmware. I am going to try reinstalling the firmware for XAA without using the Home_CSC file while I wait on replies to see if I can solve this issue with some tinkering. I am extremely tech savvy and I ha e been rooting devices and changing firmware files for a long time now, and I have been involved in a lot of development projects.
Anyway, my question is this: How do I go about removing the Sprint OMADM protocols. I assumed that flashing the firmware to the XAA firmware would have handled that, and as I said before, I either overlooked something simple when I flashed it over the first time, or there is something I missed all together.
I cant really go to Sprint about it since I am not a Sprint subscriber, and I dont know who to co tact at Sprint about this. Also, if the guy I got it from defaulted on his bill, then the device is probably black listed by them and they wouldn't unlock it for me anyway. Yeah, I know, this is stuff I should have looked into before I bought this damn thing (Mistake #2).
These are the details of the device just in case somebody has a solution:
S/N: R28J42MCXBT
IMEI:Removed for your saftey by @TheMadScientist
Brand: SPRINT (I don't know why considering I flashed the SM-G955U1 XAA firmware to it, and the SIM was not installed during this process).
Baseband: G955U1UES3CRE2
Kernel: 4.4.78-13001792
[email protected] #1
Fri May 4 11:57:40 KST 2018
Build number: R16NW.G955U1UES3CRE2
Android Security Patch Level: May 1, 2018
Android Version: 8.0.0
Any answers would be greatly appreciated since I have been tinkering with this thing on and off for about a month now.
Click to expand...
Click to collapse
More than likely a paid unlock service as the device is carrier locked and no feasible methods really that I know of....
TheMadScientist said:
More than likely a paid unlock service as the device is carrier locked and no feasible methods really that I know of....
Click to expand...
Click to collapse
That's what I was afraid of. I figured it would end up being something like that. You would think there would be a way to accomplish it simply with some reprogramming.
You know, I might have an idea...its risky, but if I refreshed the XAA firmware with Prince Comsey's Odin and performed a Nand Erase, could that potentially wipe out all of Sprint's programming? Or would that wipe out the factory recovery and brick the device? I know it is an overkill solution, but if it's possible for that method to work then I may have a go at it. I just figure that there HAS to be a way to wipe literally everything from the device and start with a new install from scratch.
Darkstar-Actual said:
That's what I was afraid of. I figured it would end up being something like that. You would think there would be a way to accomplish it simply with some reprogramming.
Click to expand...
Click to collapse
Prob not. On older lgs models we used to get into the lot hidden menu and switch it to lab mode. But I'm pretty sure sprint blocked all the good stuff
TheMadScientist said:
Prob not. On older lgs models we used to get into the lot hidden menu and switch it to lab mode. But I'm pretty sure sprint blocked all the good stuff
Click to expand...
Click to collapse
Ahhh yes, the good old days. I remember the days of being able to simply root a device and having multi carrier functionality. More than that, I remember how easy it used to be to root and install custom bootloaders.
Coincidentally, I always thought it would be awesome to run some variant of CyanogenMod OSs on devices like the GS8+.
Well, theoretically, could I just root the Sprint S8+ on the unlocked firmware and just modify the build.prop file to ignore all things sprint?
Darkstar-Actual said:
Ahhh yes, the good old days. I remember the days of being able to simply root a device and having multi carrier functionality. More than that, I remember how easy it used to be to root and install custom bootloaders.
Coincidentally, I always thought it would be awesome to run some variant of CyanogenMod OSs on devices like the GS8+.
Well, theoretically, could I just root the Sprint S8+ on the unlocked firmware and just modify the build.prop file to ignore all things sprint?
Click to expand...
Click to collapse
the unlocked firm should be free of any sprint stuff...If its not than the 3 part csc isnt setup right
XAX/XAX/XAX or xaa or something like that
if device code shows a spr anywhere then its still trying to default to sprin software
TheMadScientist said:
the unlocked firm should be free of any sprint stuff...If its not than the 3 part csc isnt setup right
XAX/XAX/XAX or xaa or something like that
if device code shows a spr anywhere then its still trying to default to sprin software
Click to expand...
Click to collapse
Okay. So it looks like I missed something. When I flashed it initially, I was on severe lack of sleep due to being severely understaffed at work (we still are, and I have been pulling doubles for over a month now), and I bet I used the Home_CSC instead of using a clean CSC file.
So, to correct this, I will have to flash the ENGboot again, then flash the XAA firmware over to the device again, and set up Comsey's Odin for a clean install instead of copying and applying Home_CSC. Is this correct? Or, because I already have the "unlocked" firmware, I should be able to just do a clean flash of the stock G955U1 software? I just wanna make sure I dont wipe and repeat what I did the first time.
Hi guys. This is my very first post here. I searched all over the internet for my problem but nothing. But it seemed that similar questions redirected me to this forum and that's why I decided to join.
So, all started this morning, when the colors of my Galaxy S7 Edge became faded, it was more noticeable on the black color. I tried to find a solution online and they suggested doing something under Developer Tools. The next problem and my big big mistake, was that I unchecked and rechecked something, that after restarting my phone, wouldn't let me enter, showing a text "Custom binary blocked by FRP Lock". I searched for a solution and I saw that the only way was to install a new firmware.
I always thought my phone was SM-G935FD, because that is what it read on the "About device", but at the download screen it showed SM-G935W8. So I downloaded a firmware for the SM-G935W8. This is what it says also on the back of my phone, i noticed it just some minutes ago. So I went and I searched for W8 firmwares. I got the 6.0.1 from Canada and Bell carrier if I am not mistaken. I did the instalĺ. It started well, but after some updates it went from 6, to android 7 and it blocked my actual carrier. I can't make any phone calls.
Now I don't know what to do. I live in Albania and I purchased the phone here, it was a used one. I think at some point the phone was rooted because I had some very strange apps that has to do with rooting apparently (I never rooted a phone and I don't know much).
I want to know if there is a way to have an unlocked firmware. I don't even know what carrier was the phone on the first place.
Edi1994 said:
Hi guys. This is my very first post here. I searched all over the internet for my problem but nothing. But it seemed that similar questions redirected me to this forum and that's why I decided to join.
So, all started this morning, when the colors of my Galaxy S7 Edge became faded, it was more noticeable on the black color. I tried to find a solution online and they suggested doing something under Developer Tools. The next problem and my big big mistake, was that I unchecked and rechecked something, that after restarting my phone, wouldn't let me enter, showing a text "Custom binary blocked by FRP Lock". I searched for a solution and I saw that the only way was to install a new firmware.
I always thought my phone was SM-G935FD, because that is what it read on the "About device", but at the download screen it showed SM-G935W8. So I downloaded a firmware for the SM-G935W8. This is what it says also on the back of my phone, i noticed it just some minutes ago. So I went and I searched for W8 firmwares. I got the 6.0.1 from Canada and Bell carrier if I am not mistaken. I did the instalĺ. It started well, but after some updates it went from 6, to android 7 and it blocked my actual carrier. I can't make any phone calls.
Now I don't know what to do. I live in Albania and I purchased the phone here, it was a used one. I think at some point the phone was rooted because I had some very strange apps that has to do with rooting apparently (I never rooted a phone and I don't know much).
I want to know if there is a way to have an unlocked firmware. I don't even know what carrier was the phone on the first place.
Click to expand...
Click to collapse
Try flashing the SM G935FD, it probably had the G935FD firmware flashed on it so that it would work in your region, flashing G935FD again might make it work again.
Sent from my LGL84VL using Tapatalk
Droidriven said:
Try flashing the SM G935FD, it probably had the G935FD firmware flashed on it so that it would work in your region, flashing G935FD again might make it work again.
Sent from my LGL84VL using Tapatalk
Click to expand...
Click to collapse
Okay but, which version of FD? Because I search it and I see versions for countries like Vietnam, Thailand, Nigeria etc etc, and I am not sure if it will be a locked version again.
Edi1994 said:
Okay but, which version of FD? Because I search it and I see versions for countries like Vietnam, Thailand, Nigeria etc etc, and I am not sure if it will be a locked version again.
Click to expand...
Click to collapse
If it was rooted before, it was probably rooted so that some things could be modified to make it work in your country.
You said you flashed an android 6 firmware then you did an OTA update to android 7. That might be a problem because it might not be able to root again in order to make the modifications that were originally done to make it work in your country.
Here is a link to all the Russian firmware for SM G935FD, try the 6.0 firmware, try the various 6.0 firmwares and see if any of them work. After flashing the 6.0 firmware, if you get a notification saying there is an update available, DO NOT ACCEPT IT, keep the 6.0 android version. You will probably still be blocked by FRP, according to XDA rules, we can't help you bypass FRP, you'll have to figure that out yourself.
https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935FD/SER/
Once you get FRP straightened out, do some searches for:
"How to root SM G935FD"
Then you can work on getting it configured to work in your region on your carrier. Sometimes this involves flashing a separate modem(radio) file that has been extracted from a different firmware in order to make your radio work with your specific carrier. You might be in for more than you bargained for. I don't know which specific modifications you'll need or what files you'll need to make it work in your region, im just trying to give you an idea of what you need to look into.
You can try some of the Russian android forums, someone there might know how to make the device work in Albania. You might want to ask around in those forums first before you try anything, that way you won't waste time trying things that might not work. It will save you time if they know where you need to start and what you need.
Sent from my LGL84VL using Tapatalk
Hello,
I bought an S7 from eBay, it was marked as a "new" and "UK" phone. I factory reset the device on receipt and apparently worked fine to start with. However, there have been a few problems (poor signal, battery life, echoes in video calls) and I noticed the device was still on Android 6, so wondered if an update to Android 8 might help (?).
There is no menu option available to update Android so I started looking into flashing firmware. On further digging, the device seemed an official SM-G930F but "United Arab Emirates" appears in the "About Phone" section.
I downloaded some stock firmware (Android 8, UK Vodafone which is the network I expect to run it on) and tried flashing with Odin 3.13 and it failed with error "unsupport dev_type" on the phone screen. Any suggestions?
I also noticed that in "Download mode" the phone said it was a "SM-G930V". I wondered if this was why the flash had failed. For the SM-G930V I only seem to be able to get USA/Verizon stock firmware. Might this work or would I have trouble using this in the UK?
Any help would be much appreciated. I'm a newbie in this area so apologies if any of these questions are answered elsewhere.
Many thanks,
Edwin
ecc25 said:
Hello,
I bought an S7 from eBay, it was marked as a "new" and "UK" phone. I factory reset the device on receipt and apparently worked fine to start with. However, there have been a few problems (poor signal, battery life, echoes in video calls) and I noticed the device was still on Android 6, so wondered if an update to Android 8 might help (?).
There is no menu option available to update Android so I started looking into flashing firmware. On further digging, the device seemed an official SM-G930F but "United Arab Emirates" appears in the "About Phone" section.
I downloaded some stock firmware (Android 8, UK Vodafone which is the network I expect to run it on) and tried flashing with Odin 3.13 and it failed with error "unsupport dev_type" on the phone screen. Any suggestions?
I also noticed that in "Download mode" the phone said it was a "SM-G930V". I wondered if this was why the flash had failed. For the SM-G930V I only seem to be able to get USA/Verizon stock firmware. Might this work or would I have trouble using this in the UK?
Any help would be much appreciated. I'm a newbie in this area so apologies if any of these questions are answered elsewhere.
Many thanks,
Edwin
Click to expand...
Click to collapse
Go to the play store and install Sam phone info, then look at what chipset it lists, you don't want it to be Qualcomm Snapdragon, Eyxnos is what you want to see.
G930V is US Verizon firmware
Report back please.
cooltt said:
Go to the play store and install Sam phone info, then look at what chipset it lists, you don't want it to be Qualcomm Snapdragon, Eyxnos is what you want to see.
G930V is US Verizon firmware
Report back please.
Click to expand...
Click to collapse
Thanks for your reply! The "hardware/board" is "qcom/msm8996". Where does that leave me?
I noticed that the Bootloader & Baseband Versions begin G930VVRU but the PDA and CSC versions begin G930FXXU. Not sure if that means anything.
Thank you!
ecc25 said:
Thanks for your reply! The "hardware/board" is "qcom/msm8996". Where does that leave me?
I noticed that the Bootloader & Baseband Versions begin G930VVRU but the PDA and CSC versions begin G930FXXU. Not sure if that means anything.
Thank you!
Click to expand...
Click to collapse
Well the person who sold it to you is a liar for starters, it's not a "brand new UK device", it's a US S7 (G930V) Originally bought for the Verizon Network in the states. They are difficult to do anything with as the Qualcomm boot loader is locked down.
So your first option is to update the firmware to the latest Verizon Oreo, probably not worth it since that firmware is designed to work on a couple of frequencies only.
Next option is to flash unbranded US firmware with a modified version of Odin that ignores mismatch devices etc and just installs the firmware. You will need to use this version of Odin from this thread >>> here Odin 13 PatchD.zip is the one you want.
Unzip, run Odin, place phone into download mode flash firmware. You will need to download G930U from Sammobile or undato.com The 3 letter code should either be USC or XAA.
Any questions please ask.
Also before flashing please remove you google account off the phone.
cooltt said:
Well the person who sold it to you is a liar for starters, it's not a "brand new UK device", it's a US S7 (G930V) Originally bought for the Verizon Network in the states. They are difficult to do anything with as the Qualcomm boot loader is locked down.
So your first option is to update the firmware to the latest Verizon Oreo, probably not worth it since that firmware is designed to work on a couple of frequencies only.
Next option is to flash unbranded US firmware with a modified version of Odin that ignores mismatch devices etc and just installs the firmware. You will need to use this version of Odin from this thread >>> here Odin 13 PatchD.zip is the one you want.
Unzip, run Odin, place phone into download mode flash firmware. You will need to download G930U from Sammobile or undato.com The 3 letter code should either be USC or XAA.
Any questions please ask.
Also before flashing please remove you google account off the phone.
Click to expand...
Click to collapse
Thank you for these detailed instructions -- much appreciated!
Presumably using this version of Odin carries a high risk of bricking the phone if I get anything wrong?
Out of interest, what's the reason for removing the Google account?
Cheers,
Edwin
ecc25 said:
Thank you for these detailed instructions -- much appreciated!
Presumably using this version of Odin carries a high risk of bricking the phone if I get anything wrong?
Out of interest, what's the reason for removing the Google account?
Cheers,
Edwin
Click to expand...
Click to collapse
Because it's a further complication with FRP lock you just don't need after flashing. Just add the google account after flashing and your good to go.
With regards to flashing yes there's always a risk that something can go wrong, that's why you take your time and follow the steps exactly. In your case it's pretty straight forward and remember nothing changes on the external SD card, so anything you want to keep can be moved there before flash.
I would also mention that theoretically you could flash UK unbranded (BTU) but it's for G930F Exynos devices so best at this stage just get the device on unbranded Qualcomm and working on UK networks.
let me know how it goes.
cooltt said:
Because it's a further complication with FRP lock you just don't need after flashing. Just add the google account after flashing and your good to go.
With regards to flashing yes there's always a risk that something can go wrong, that's why you take your time and follow the steps exactly. In your case it's pretty straight forward and remember nothing changes on the external SD card, so anything you want to keep can be moved there before flash.
I would also mention that theoretically you could flash UK unbranded (BTU) but it's for G930F Exynos devices so best at this stage just get the device on unbranded Qualcomm and working on UK networks.
let me know how it goes.
Click to expand...
Click to collapse
Hello,
I've just tried doing what you suggested (I think!) and I got a failure. Odin said "FAIL! (Auth)" and the phone said "Secure check fail: apnhlos". I tried rebooting and got a security error. So I tried Odin again and it passed.
However, now the phone won't boot, it alternates between "Samsung Galaxy S7" and a blank screen. In recovery I get:
"#fail to open recovery_cause(No such file or directory)#"
#Reboot Recovery Cause is [UNKNOWN]#
No Support SINGLE-SKU
File-Based OTA
Supported API: 3
dm-verity verification failed..."
Any ideas?
Thanks a lot,
Edwin
ecc25 said:
Hello,
I've just tried doing what you suggested (I think!) and I got a failure. Odin said "FAIL! (Auth)" and the phone said "Secure check fail: apnhlos". I tried rebooting and got a security error. So I tried Odin again and it passed.
However, now the phone won't boot, it alternates between "Samsung Galaxy S7" and a blank screen. In recovery I get:
"#fail to open recovery_cause(No such file or directory)#"
#Reboot Recovery Cause is [UNKNOWN]#
No Support SINGLE-SKU
File-Based OTA
Supported API: 3
dm-verity verification failed..."
Any ideas?
Thanks a lot,
Edwin
Click to expand...
Click to collapse
Ok, so try an earlier G930V firmware and please make sure you are placing the file in the right places with Odin. The US carriers have all updated their firmware and often closes the loophole which allows the patched Odin to work. Then it's just a question of waiting until someone develops a workaround again.
Also you can pick up an S7 from ebay for about £100 now, your always going to have problems with a qualcomm device on UK networks. Where about are you in the UK?
cooltt said:
Ok, so try an earlier G930V firmware and please make sure you are placing the file in the right places with Odin. The US carriers have all updated their firmware and often closes the loophole which allows the patched Odin to work. Then it's just a question of waiting until someone develops a workaround again.
Also you can pick up an S7 from ebay for about £100 now, your always going to have problems with a qualcomm device on UK networks. Where about are you in the UK?
Click to expand...
Click to collapse
Thanks! Actually shortly after posting I found a suggesting of using CSC not HOME_CSC, which enabled the flash to work (at the expense of phone data, as expected).
The device still does have a few issues though, as you predicted. Is the radio hardware different for Qualcomm? Might need to buy another then. Any advice to avoid being scammed on eBay again?!
Thanks so much!
ecc25 said:
Thanks! Actually shortly after posting I found a suggesting of using CSC not HOME_CSC, which enabled the flash to work (at the expense of phone data, as expected).
The device still does have a few issues though, as you predicted. Is the radio hardware different for Qualcomm? Might need to buy another then. Any advice to avoid being scammed on eBay again?!
Thanks so much!
Click to expand...
Click to collapse
Well you could flash G930U which opens up all of the radios for the US and you may have less issues but US and European devices have different chips so your never going to be able to flash any EU generic firmware. I'm addition the US and Europe are different cellular regions with different operating frequencies. You can get by with what you have but never get full functionality.
I think you were just unlucky with this phone on ebay, there are plenty which are genuine EU region devices.
Hi all,
All pay features and such are locked to local firmware and I'm wondering if I can just flash the Japanese variant firmware onto my SM-F711U1 using Frija. I'd rather not have bloatware but I want to be able to use G Pay. I can't without the Osaifu-Keitai app and that will not install on my variant.
If there is anyone that knows how to installOsaifu-Keitai on an international phone, that would solve all my problems.
It has been a very long time since I flashed anything and I'm a little rusty/lost. I couldn't even find the bloody search bar for this forum section! Forgive my ignorance.
You could side load the apk
https://m.apkpure.com/%E3%81%8A%E3%82%B5%E3%82%A4%E3%83%95%E3%82%B1%E3%83%BC%E3%82%BF%E3%82%A4-%E3%82%A2%E3%83%97%E3%83%AA/com.felicanetworks.mfm.main/versions
Thanks, but I tried sideloading it and the application just failed to open, saying that it is incompatible with the device.
For anyone else that ever looks to solve this in the future, it seems that there is a hardware limitation and a specific chip for Japan's implementation of NFC for payments. Either the chip is disabled or missing from other variants. It could be just a software check that stops the app from running, but I cannot find the Japanese firmware to flash at the moment, and not sure I want to brick my phone if the actual hardware is different. I might try once the firmware becomes available.
If it helps (not really) but US devices dont support non US firmwares, even if they share the same hw, so you wouldnt be able to flash JP firmware anyway
Do however note you can use samfirm patched to download the JP firmware
ChipJapan said:
Thanks, but I tried sideloading it and the application just failed to open, saying that it is incompatible with the device.
For anyone else that ever looks to solve this in the future, it seems that there is a hardware limitation and a specific chip for Japan's implementation of NFC for payments. Either the chip is disabled or missing from other variants. It could be just a software check that stops the app from running, but I cannot find the Japanese firmware to flash at the moment, and not sure I want to brick my phone if the actual hardware is different. I might try once the firmware becomes available.
Click to expand...
Click to collapse
The answer lies within the differences in HW between US and non-US versions of the same phone model, namely, US version is "missing" MST technology. More on this topic here:
https://www.samsung.com/global/galaxy/what-is/mst/
Therefore, you cannot simply flash US version phone with non-US firmware, as Odin (Frija only used to download firmware) will not allow you, even patched version. It will simply fail during the installation phase and in the worst case scenario you will get a $1000 paperweight (read brick).