Develop Bugs

[Q] So How does this actually work?

I picked up a pre-owned Gold G3 yesterday, my last one went pop!
This new G3, is Sim Unlocked, but with a Vodafone UK rom (V10a.235.15). After researching and reading around.. the G3 has EFS, so I followed the KDZ back to stock guide and flashed the Open EU rom, which went without any issues and seemed as if it had flashed and replaced the VF Rom, but it still has the VF splash screen, a VF updates Icon (Which can be removed) and software version, yet the G3 still detected and Loaded in my EE UK APN settings and no sign of any VF APN.
http://forum.xda-developers.com/showthread.php?t=2785089
So am I right in thinking.. If I wanted to make this a full UK unbranded phone, so no splash screen with a software V10a.EUR.XX.. I would have to Jailbreak the EFS partition and Replace VFRom stored on the EFS with the EUR-XX rom.
OR am I wrong entirely, so... How does this work
There are so many threads on here, that ask the same questions in different ways, hence why Im a litle confused as how this works
Thanks

Wait Wait Wait
So you cant manually import APN settings right? How about flashing a Rom from another European country?
Dont tamper with the EFS partition under any circumstances. If you do you wont have a IMEI and your phone will be worthless. Carrier branding does not occur within the EFS partition
I remember my carrier apps disappeared from Update Center when i upgraded my Australian firmware to a Taiwan Firmware so im pretty sure it might work for you.
When you flash the KDZ make sure you flash it using CSE Flash Mode

itsbighead said:
Wait Wait Wait
So you cant manually import APN settings right? How about flashing a Rom from another European country?
Dont tamper with the EFS partition under any circumstances. If you do you wont have a IMEI and your phone will be worthless. Carrier branding does not occur within the EFS partition
I remember my carrier apps disappeared from Update Center when i upgraded my Australian firmware to a Taiwan Firmware so im pretty sure it might work for you.
When you flash the KDZ make sure you flash it using CSE Flash Mode
Click to expand...
Click to collapse
Can I just be clear before I answer... The G3 I bought is Branded to Vodafone UK, I am personally on EE UK and Im trying to remove the Vodafone Branding and make it a factory unlocked unbranded G3.
Thanks for the reply friend. I didnt have to enter any EE APN settings, they were already there, so not sure how that was... because I didnt enter them. Glad to hear its not the EFS, because I would rather use a branded phone and have it working than change its file system and mess it up. Also, I know the guide doesnt state it but I turned ON USB Debugging, would that make a difference
I followed the guide closely so did flash using CSE. Ill now flash another countries KDZ and let you know how i get on?
Could it be that Vodafone UK is the EU Open Rom, just a few minor changes..... What I dont understand is...
The EUR Open Rom flashes perfectly fine, reboots and starts... so why after a perfect flash using CSE, is the Vodafone UK rom still there. Any Ideas.

itsbighead said:
How about flashing a Rom from another European country?
Click to expand...
Click to collapse
Im afraid no Luck... I flashed Open France, still booted to VF rom with VF software on it v.10a-235-15), then installed "Italy Orange", which actually worked, booted up a clean LG rom BUT, even though its v.10a, When trying OTA update, it said I was n the latest OS, which is no good, then using LG PC Sync.. it just updated to the UK VF rom again (20h).
So I took a long shot and flashed Open UK, still the same.... boots into VF splash screen and software.. so, Im at a loss. This is why I reckon carriers hide a rom on the EFS partition.
Any thing to add
Thanks

Can all USA Galaxy S9 models be flashed to each other's firmware?

I've read that the Galaxy S9 hardware is identical for all carriers in the USA.
If I bought a factory unlocked Galaxy S9 can I flash it to the carrier I am using (Verizon, Sprint, T-Mobile, AT&T) to enable carrier specific software and features? Can I flash it back to the unlocked firmware?
I already see a thread about flashing the unlocked firmware to carrier models so I am assuming there are no issues there.
Can one carrier model be flashed to another carrier model?

No, bootloaders are different, with the S7 there was an unbranded U firmware that was compatible with most of them, unlocked firmware will be that one for the S9, but no you cannot just flash different device firmwares to the wrong model

I was able to flash the ATT rom onto my Verizon S9. I got a VZ s9 from work but I'm on ATT. For the most part it's worked great, I had done the same thing previously with a Galaxy S7. I say for the most part b/c I am on here tonight to post a question myself about the fact that I'm getting a delay with MMS messages. I imagine it has something to do with the APNs I have setup, but I can't seem to figure it out.

toronado13 said:
I was able to flash the ATT rom onto my Verizon S9. I got a VZ s9 from work but I'm on ATT. For the most part it's worked great, I had done the same thing previously with a Galaxy S7. I say for the most part b/c I am on here tonight to post a question myself about the fact that I'm getting a delay with MMS messages. I imagine it has something to do with the APNs I have setup, but I can't seem to figure it out.
Click to expand...
Click to collapse
Did you have to flash to the U1 software first?

I do think that is what I ended up doing... tried to go directly first and it kept failing. Got fed up and decided to just try and put the bone stock rom on it, and that went on really easily.... so after using it like that a few days I tried to drop the ATT rom on it and it worked without issue.

SEALBoy said:
I've read that the Galaxy S9 hardware is identical for all carriers in the USA.
If I bought a factory unlocked Galaxy S9 can I flash it to the carrier I am using (Verizon, Sprint, T-Mobile, AT&T) to enable carrier specific software and features? Can I flash it back to the unlocked firmware?
I already see a thread about flashing the unlocked firmware to carrier models so I am assuming there are no issues there.
Can one carrier model be flashed to another carrier model?
Click to expand...
Click to collapse
Yes, but you need to go to the u1 firmware 1st then to the other carrier firmware. Also make sure you avoid the newer firmwares with the new bootloader, as the unlocked model and certain carrier models don't have the new bootloader.

*Detection* said:
No, bootloaders are different, with the S7 there was an unbranded U firmware that was compatible with most of them, unlocked firmware will be that one for the S9, but no you cannot just flash different device firmwares to the wrong model
Click to expand...
Click to collapse
lolol
yes u can.. u can flash between U and U1 firmwares no problem..
normally ud b correct tho but since s8/s8+ it has been ok.. just cant flash 9600 or 9650 to a U or U1 device

elliwigy said:
lolol
yes u can.. u can flash between U and U1 firmwares no problem..
normally ud b correct tho but since s8/s8+ it has been ok.. just cant flash 9600 or 9650 to a U or U1 device
Click to expand...
Click to collapse
That'll be why I still thought that then, coming straight from the S7 > S9
Had many members flashing the wrong firmwares thinking they could do that and bricking their S7s / wondering why ODIN failed

*Detection* said:
That'll be why I still thought that then, coming straight from the S7 > S9
Had many members flashing the wrong firmwares thinking they could do that and bricking their S7s / wondering why ODIN failed
Click to expand...
Click to collapse
I tried downloading vzw firmware G960USQS3ARI6 to my unlocked sprint s9 and still not vzw flashed. want to do this so can have voice over LTE. Any other steps im missing? flash went through but still sprint

As soon as Firmware ver. 3 came out for the G960U1, I was able to flash it to my Sprint G960U and finally have VoLTE, WiFi calling and stable LTE for MetroPCS. Used samkey to unlock it from Sprint. My phone is actually performing much faster without all of Sprint's bloatware hogging my RAM and storage space. I can confirm that OTA updates still work the same...I received September's security patch (current) with no problems. Device is still official status and Knox hasn't been tripped.
A lot of people think you can just flash the carrier firmware of your choice and boom, it works...I had the same thought process....that's not the case. You have to make sure that there is a matching firmware version for the carrier you want to flash to, as well as make sure the G960U1 firmware version (the unlocked version of the S9's software you have to flash first before even carrier flashing) is the same version of what is installed on your phone now. It's easy ya'll......just READ lol.
I'm in love with my phone again thanks to XDA. ?
HAPPY FLASHING!

nickosarus2008 said:
As soon as Firmware ver. 3 came out for the G960U1, I was able to flash it to my Sprint G960U and finally have VoLTE, WiFi calling and stable LTE for MetroPCS. Used samkey to unlock it from Sprint. My phone is actually performing much faster without all of Sprint's bloatware hogging my RAM and storage space. I can confirm that OTA updates still work the same...I received September's security patch (current) with no problems. Device is still official status and Knox hasn't been tripped.
A lot of people think you can just flash the carrier firmware of your choice and boom, it works...I had the same thought process....that's not the case. You have to make sure that there is a matching firmware version for the carrier you want to flash to, as well as make sure the G960U1 firmware version (the unlocked version of the S9's software you have to flash first before even carrier flashing) is the same version of what is installed on your phone now. It's easy ya'll......just READ lol.
I'm in love with my phone again thanks to XDA.
HAPPY FLASHING!
Click to expand...
Click to collapse
Hi, I got one unlocked G960U1(G960U1UES3ARI1) and downloaded new fireware(G960U1UES3ARI1-SPR) from sammobile, but after flashed SPR ROM successfully, the info on the phone still shows XAA, anything I missed here? Thanks!

Curtis2018 said:
Hi, I got one unlocked G960U1(G960U1UES3ARI1) and downloaded new fireware(G960U1UES3ARI1-SPR) from sammobile, but after flashed SPR ROM successfully, the info on the phone still shows XAA, anything I missed here? Thanks!
Click to expand...
Click to collapse
Well first off, you have the unlocked phone. I don't. My G960U is originally from Sprint, so I'm not sure about carrier flashing regarding the G960U1. I thought it was supposed to provision itself after you put the sim in, and the associated carrier apps will download since it's the unlocked model...but I may be wrong...

SEALBoy said:
I've read that the Galaxy S9 hardware is identical for all carriers in the USA.
If I bought a factory unlocked Galaxy S9 can I flash it to the carrier I am using (Verizon, Sprint, T-Mobile, AT&T) to enable carrier specific software and features? Can I flash it back to the unlocked firmware?
I already see a thread about flashing the unlocked firmware to carrier models so I am assuming there are no issues there.
Can one carrier model be flashed to another carrier model?
Click to expand...
Click to collapse
I know so many people have already answered your question from some saying No to others saying Yes but you need to Install U1 first and Bla Bla Bla.
I want to give you one specific answer: With S9 you can any Carriers firmware you wish or even Unlocked phone's firmware. You will never have any issue. And you don't ever need to flash U1 or something else before changing carrier firmware you can Flash from ATT S9 firmware to VZW S9 firmware without any issue. You can also flash from U to U1 which is from Carrier specific to Unbranded/Unlocked but only hiccup is original Odin will give you SHA-256 error, which is normal because you are flashing U1 firm to U device or vice versa. This error can easily be resolved by used Patched odin that disabled SHA-256 check. And trust me you will never have any issue.
You will never want to do this but I have gone as far as mix-matching U and U1 firmware together as well. Like flashing AP, BL and CP of U device but flashing CSC of U1 device. and it still works.

hey there, a little late to the party, having trouble with going from a Verizon to a Sprint, even by way of U1. I can't get any of them to work. And I've been told I have to go from VZW to U1 before I went to Sprint. Is that not the case? I'm having a hell of a time getting anything to flash, everything fails.
---------- Post added at 03:08 AM ---------- Previous post was at 02:57 AM ----------
ret4425 said:
hey there, a little late to the party, having trouble with going from a Verizon to a Sprint, even by way of U1. I can't get any of them to work. And I've been told I have to go from VZW to U1 before I went to Sprint. Is that not the case? I'm having a hell of a time getting anything to flash, everything fails.
Click to expand...
Click to collapse
well, I tried to load the Sprint image from the VZW, no dice. It said it passed, but upon reboot loaded up the old Big Red (even with the Sprint SIM in it).
Anyone have any ideas? This is driving me insane....

S9 Message Your current software version isn't supported. Visit a service centre

Hi first post, please be gentle
I've got an s9 which is on EE UK, I flashed the phone with stock firmware, I did run into a couple of issues where when flashing the phone it got stuck on odm.img so I had to start again but using CSC and not home CSC so I lost everything
When the phone rebooted, it started up in German, so as I had my sim card in, it restarted in English
I'm using the following
G960FXXU2CSA2/G960FOXM2CSA2/G960FXXS2BRK3
Service provider SW SAOMC_SM-G960F_OXM_DBT_PP_0009
DBT/XEU/EVR
When I check for updates I get the following
Your current software version isn't supported. Visit a service centre
Can anyone help on how to put this right, I want to stay on stock firmware, not EE firmware
Thanks in advance

Good morning, I have a problem with my S9 model G9600 which came from the factory with the firmware of Hong Kong, however I tried to change the firmware for the one in Colombia because some voice services of the operators only work with the software of the country. But when trying to flash the part of CSC I mark the error and obviously the installation fails as in a kind of A brick because the logo of Galaxy S9 does not pass and is only solved by reinstalling the firmware with which it came from the factory; I have already made sure that the binary is the same, however I can not find a solution. I attach photos of the error.

dancevision said:
Hi first post, please be gentle
I've got an s9 which is on EE UK, I flashed the phone with stock firmware, I did run into a couple of issues where when flashing the phone it got stuck on odm.img so I had to start again but using CSC and not home CSC so I lost everything
When the phone rebooted, it started up in German, so as I had my sim card in, it restarted in English
I'm using the following
G960FXXU2CSA2/G960FOXM2CSA2/G960FXXS2BRK3
Service provider SW SAOMC_SM-G960F_OXM_DBT_PP_0009
DBT/XEU/EVR
When I check for updates I get the following
Your current software version isn't supported. Visit a service centre
Can anyone help on how to put this right, I want to stay on stock firmware, not EE firmware
Thanks in advance
Click to expand...
Click to collapse
You need to flash the XEU firmware, you have the German DBT firmware running right now

same issue, i have a hungarian telenor phone which suppoesed to be (PAN) , i flashed XEH which is hungarian, but it said software version not supported visit a support center , so i flashed the PAN 9.0 version and it still says this

Did you find any solution for this?

Bizzhub said:
Did you find any solution for this?
Click to expand...
Click to collapse
are you having an identical issue? i ask that because resolutions are very specific. Flashing firmware from www.sammobile.com/firmwares is very commonly the fix for a great many issues, but id hate to have you go thru the trouble of doing so if its not necessary

I tried flashing using odin but didnt work. btw, im using SM-965U and currently residing in Thailand. I dont know if this is the reason why I cant update at all.

S9 message
I am in the U.S. and am getting the message that software isn't supported also. Is there any resolution to this problem?

In case it helps, I was having this same issue with my unlocked Galaxy Note 10+. I found this thread after searching. I had gotten into this situation by flashing CP/AP/BL from TMO firmware without also flashing TMO's CSC or USERDATA. I avoided CSC/USERDATA (I was using the home CSC) because I wanted to avoid wiping the phone.
When I finally gave up and flashed CSC and USERDATA, everything was back to normal.

hueboy said:
I am in the U.S. and am getting the message that software isn't supported also. Is there any resolution to this problem?
Click to expand...
Click to collapse
have you tried flashing the stock firmware via Odin?
ThugEsquire said:
In case it helps, I was having this same issue with my unlocked Galaxy Note 10+. I found this thread after searching. I had gotten into this situation by flashing CP/AP/BL from TMO firmware without also flashing TMO's CSC or USERDATA. I avoided CSC/USERDATA (I was using the home CSC) because I wanted to avoid wiping the phone.
When I finally gave up and flashed CSC and USERDATA, everything was back to normal.
Click to expand...
Click to collapse
thats usually the fix. Glad you got it working
Bizzhub said:
I tried flashing using odin but didnt work. btw, im using SM-965U and currently residing in Thailand. I dont know if this is the reason why I cant update at all.
Click to expand...
Click to collapse
what is the issue after you flash in Odin?

Unlocked Note 10+ on TMobile ?

I got Note 10+ 256gb unlocked version from Samsung. Planning on using it on Tmobile. Do I need to do anything specific to make it more compatible with Tmobile. I've currently unlocked s10e on Tmobile and overall network coverage seems bit subpar compared to Galaxy S8 that I purchased from Tmobile.
So I'm just curious if I need to do anything for Note 10+ ince I get it, to make it more network friendly.
Sent from my SM-G970U1 using Tapatalk

Download the tmobile firmware from sam mobile and odin it to your unlocked.

I googled it but didn't have luck. Any chance there is a link to the T-Mobile firmware?

stu5797 said:
I googled it but didn't have luck. Any chance there is a link to the T-Mobile firmware?
Click to expand...
Click to collapse
It's not up on Sammobile yet...
But it is on samfrew
https://samfrew.com/download/Galaxy__Note10+__256GB__/c3pb/TMB/N975USQU1ASGO/N975UOYN1ASGO/

What about for the 512 version unlocked? Can use same as 256 unlocked?
And is it recommended to flash the firmware (T-Mobile in my case too) right out of the box or do you have to put your old sim in from your previous phone first, then setup your gmail acct and let the sim reach the T-Mobile network?
Never had unlocked phones so this will be a first, hence the questions...

I just flashed my Note 10+ with TMB fimware and it all went fine. here is the link from Sammobile https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/SM-N975U/

marctronixx said:
What about for the 512 version unlocked? Can use same as 256 unlocked?
And is it recommended to flash the firmware (T-Mobile in my case too) right out of the box or do you have to put your old sim in from your previous phone first, then setup your gmail acct and let the sim reach the T-Mobile network?
Never had unlocked phones so this will be a first, hence the questions...
Click to expand...
Click to collapse
It doesn't really matter. The storage size doesn't affect the firmware. It's all the same.
Flashing the carrier firmware will factory reset your device, so I wouldn't waste time setting it up first. Just put your SIM in and let it provision for T-Mobile. It happens automatically so there's nothing you have to do. Then flash the firmware with ODIN.
Just research and make sure you know what you're doing before flashing. ODIN is fairly fool proof, but it's still best to know what you're doing first.

Add each file to it's respective field in Odin v3.13.3. Use CSC_*** if you want to do a clean flash or HOME_CSC_*** if you want to keep your apps and data.
I thought you can flash without messing with your data.

stu5797 said:
Add each file to it's respective field in Odin v3.13.3. Use CSC_*** if you want to do a clean flash or HOME_CSC_*** if you want to keep your apps and data.
I thought you can flash without messing with your data.
Click to expand...
Click to collapse
Technically you can flash without messing data but will be difficult to identify the reasons if you encounter any issues after that. So its better to flash it now itself when its freshly out of the box

I was going to update the Unlocked firmware via OTA software update. Once I receive the update I will then flash the Tmobile firmware via Odin

marctronixx said:
What about for the 512 version unlocked? Can use same as 256 unlocked?
And is it recommended to flash the firmware (T-Mobile in my case too) right out of the box or do you have to put your old sim in from your previous phone first, then setup your gmail acct and let the sim reach the T-Mobile network?
Never had unlocked phones so this will be a first, hence the questions...
Click to expand...
Click to collapse
Just received my unlocked Note10+ 512GB an hour ago and, as was the case with my unlocked Note9, it works great out of the box with T-Mobile and Mint (a discount reseller). No custom flashes needed unless you want the TMO bloatware. I would leave it as-is and just download the respective carrier apps individually. Love this BEAST so far! :good:

I bought the note 10+ and i'm on the tmobile network. The only issue I'm having is VOLTE. To my knowledge VOLTE should work. Can anyone confirm this?

O2 branded SM-G960F to vodafone

I've got an O2 Galaxy S9 and I'd like to use it with a Vodafone SIM in UK.
Is it just the firmware that would need changing or would the ROM need to be changed too?

technician483 said:
I've got an O2 Galaxy S9 and I'd like to use it with a Vodafone SIM in UK.
Is it just the firmware that would need changing or would the ROM need to be changed too?
Click to expand...
Click to collapse
the firmware contains the ROM, but the ROM wouldnt have been what prevented you from using this to its full potential. Technically, all youd really need to do is flash your carriers CSC and even maybe the HOME_CSC. If youre unfamiliar with those terms and/or processes, just flash the Vodafone firmware with the CSC (which will factory reset it) and call it a day

Youdoofus said:
the firmware contains the ROM, but the ROM wouldnt have been what prevented you from using this to its full potential. Technically, all youd really need to do is flash your carriers CSC and even maybe the HOME_CSC. If youre unfamiliar with those terms and/or processes, just flash the Vodafone firmware with the CSC (which will factory reset it) and call it a day
Click to expand...
Click to collapse
Hi Youdoofus,
Thanks for your help.
Can I just run this past you then.
The phone came brand new from O2 and is not locked to the network.
I'm using a Vodafone SIM in the phone and I have trouble receiving SMS, making 4G calls, etc.
I understand what it is to flash the phone with new firmware although I've never done it before.
If I flash the phone with the latest Vodafone firmware and Vodafone or generic CSC that should be enough to get the phone working ok with the Vodafone SIM?
Sorry if the question seems basic. This is obviously not my area of expertise.

technician483 said:
Hi Youdoofus,
Thanks for your help.
Can I just run this past you then.
The phone came brand new from O2 and is not locked to the network.
I'm using a Vodafone SIM in the phone and I have trouble receiving SMS, making 4G calls, etc.
I understand what it is to flash the phone with new firmware although I've never done it before.
If I flash the phone with the latest Vodafone firmware and Vodafone or generic CSC that should be enough to get the phone working ok with the Vodafone SIM?
Sorry if the question seems basic. This is obviously not my area of expertise.
Click to expand...
Click to collapse
no worries mate. nobody is innately knowledgeable about this stuff, even the seasoned linux vets can stumble about a bit.
but yes, all you really need to do is flash the Vodafone or generic/multi csc and youll probably be good to go. the reason your sms isnt working is likely due to your APN settings and voLTE wont work without your carriers own CSC installed tho. That being said, many of the multi CSC firmware packs will do the job quite nicely as they will likely have Vodafones CSC in their list of available CSCs. It would be different if you used a fly by night carrier

I flashed mine with unbranded generic UK firmware BTU-G960FXXU7CSK1-20191121174240.zip.
Got it here, took forever: https://samfrew.com/download/Galaxy__S9__/5vgs/BTU/G960FXXU7CSK1/G960FOXM7CSJ5/
Probably better using Frija to download it quick but I couldn't get it working:
https://forum.xda-developers.com/s10-plus/how-to/tool-frija-samsung-firmware-downloader-t3910594
Final Samsung Android 10 should be out any day now (if you can wait).
Big fan of this Lineage 17 10 rom by Abtekk if you fancy something custom:
https://forum.xda-developers.com/ga...-s9--s9-cross-device-development/rom-t4020939
Currently running that with White Wolf kernel & Zoran's GCam, good luck!