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What is the difference between the G955U and the G955U1?

I have a G955U1, is this ANY different than the G955U? Besides the name, I mean. Can I flash G955U firmware on my G955U1? Thanks.

G955U is USA carrier locked and G955U1 USA Unlocked

thunderroid said:
G955U is USA carrier locked and G955U1 USA Unlocked
Click to expand...
Click to collapse
Sorry for the noob question does this mean I can install G955U1 USA Unlocked firmware on my G955U carrier locked without any issues

turboedm said:
I have a G955U1, is this ANY different than the G955U? Besides the name, I mean. Can I flash G955U firmware on my G955U1? Thanks.
Click to expand...
Click to collapse
Simply put. There is no bloat. You'll get all the features samsung intended on their phones. You won't get features from carrier phones.

but in G955U1 the bootloader is locked

thunderroid said:
G955U is USA carrier locked and G955U1 USA Unlocked
Click to expand...
Click to collapse
If I flash the U1 firmware on my phone with 955U, will I be able to return back to 955U if I do not like it?? What is the advantage of U1 on my ATT 955U phone??

tailgunner9 said:
If I flash the U1 firmware on my phone with 955U, will I be able to return back to 955U if I do not like it?? What is the advantage of U1 on my ATT 955U phone??
Click to expand...
Click to collapse
I have been asking a lot about this myself. i am on tmobile. not sure if i want to make the leap to unlocked. want to keep visual voicemail, wifi calling, rcs support and what not. but i want to get in on the beta for pie. running drl7 now but the video bug with netflix and what not is annoying.

The u1 is bootloader locked. The u firmware is bootloader locked
If you own a u device and it is not sim unlocked the only advantage u1 firmware give is carrier bloat.
The u1 firmware can be flashed on a u device. But other than listed above no other perks come from this.

TheMadScientist said:
The u1 is bootloader locked. The u firmware is bootloader locked
If you own a u device and it is not sim unlocked the only advantage u1 firmware give is carrier bloat.
The u1 firmware can be flashed on a u device. But other than listed above no other perks come from this.
Click to expand...
Click to collapse
I can semi-confirm this. From the recovery menu I can select bootloader and it boots to SOMETHING.....but it looks like it's booting to their downloader version and not what people would traditionally see from a normal bootloader screen. I do know this screen does NOT work for having the phone detected by Platform Tools so no way to use that at all as far as I can see. UGH. I swear I should have just bought a Pixel 2 when I had the chance. GODS Samsung is annoying. :crying:

RangerVegas said:
I can semi-confirm this. From the recovery menu I can select bootloader and it boots to SOMETHING.....but it looks like it's booting to their downloader version and not what people would traditionally see from a normal bootloader screen. I do know this screen does NOT work for having the phone detected by Platform Tools so no way to use that at all as far as I can see. UGH. I swear I should have just bought a Pixel 2 when I had the chance. GODS Samsung is annoying. :crying:
Click to expand...
Click to collapse
Your not god

RangerVegas said:
I can semi-confirm this. From the recovery menu I can select bootloader and it boots to SOMETHING.....but it looks like it's booting to their downloader version and not what people would traditionally see from a normal bootloader screen. I do know this screen does NOT work for having the phone detected by Platform Tools so no way to use that at all as far as I can see. UGH. I swear I should have just bought a Pixel 2 when I had the chance. GODS Samsung is annoying. :crying:
Click to expand...
Click to collapse
When you click reboot to bootloader it takes you to what as known as download mode which is how we flash stock firmware. And maybe a couple other things but yea mainly for stock firms. Its used by a program called odin and the latest is 3.13 i believe.

TheMadScientist said:
When you click reboot to bootloader it takes you to what as known as download mode which is how we flash stock firmware. And maybe a couple other things but yea mainly for stock firms. Its used by a program called odin and the latest is 3.13 i believe.
Click to expand...
Click to collapse
Yea hopefully someone will respond to my main question in the noobie thread. Or maybe you would know. So I know Odin is the program Samsung uses to load new ROM on a phone. And I thought I read somewhere that there was a modified version of Odin that someone made that could install new/different ROM's. But I also saw in another message that either the current version of Odin, or the current version of the modified Odin could still load other ROM's and that someone had tested this. So that was my original primary question.
Is there a way I can use one or the other to load a Stock Android Pie ROM like what might come with a Pixel so I can avoid all the garbageware from Samsung? Or is there a chance doing that, that I would have some of my hardware features disabled since that seems to be an issue loading a ROM from another phone? And if so. Has anyone made a ROM for Samsung phones with all the garbage programs removed? Or is it still too early in the release of Pie for Samsung for that to be a reality right now?
Thank You for the info.

RangerVegas said:
Yea hopefully someone will respond to my main question in the noobie thread. Or maybe you would know. So I know Odin is the program Samsung uses to load new ROM on a phone. And I thought I read somewhere that there was a modified version of Odin that someone made that could install new/different ROM's. But I also saw in another message that either the current version of Odin, or the current version of the modified Odin could still load other ROM's and that someone had tested this. So that was my original primary question.
Is there a way I can use one or the other to load a Stock Android Pie ROM like what might come with a Pixel so I can avoid all the garbageware from Samsung? Or is there a chance doing that, that I would have some of my hardware features disabled since that seems to be an issue loading a ROM from another phone? And if so. Has anyone made a ROM for Samsung phones with all the garbage programs removed? Or is it still too early in the release of Pie for Samsung for that to be a reality right now?
Thank You for the info.
Click to expand...
Click to collapse
There is a pie beta I don't know if it is official yet. If you flash the unlocked firmware I've read you lose features like WiFi calling and volte. But I have not tried pie or unlocked firm ware on mine. There is a thread on installing safestrap then doing a rooted system images then from there depending on the flashed image if you do debloat. Again I haven't tried the new root method. I'm still on a really old revision from end of 2017

TheMadScientist said:
There is a pie beta I don't know if it is official yet. If you flash the unlocked firmware I've read you lose features like WiFi calling and volte. But I have not tried pie or unlocked firm ware on mine. There is a thread on installing safestrap then doing a rooted system images then from there depending on the flashed image if you do debloat. Again I haven't tried the new root method. I'm still on a really old revision from end of 2017
Click to expand...
Click to collapse
Ok thanks for the info. So apparently right now it's just a bit too early to be trying to find a Pie ROM that would work with my phone and not loose some hardware features. Which I guess makes sense since Samsung is only just now releasing it for S9's I believe in european countries I guess primarily to make sure how they borked it with their own software and tweaking didn't totally screw up their phones. Heh.
Oddly enough I got all excited when I saw it said there was an update today, but all it was for was a security update to bring it up to "Feb 1st, 2019" Android security level.
Thanks for the info about things. :good:

tailgunner9 said:
If I flash the U1 firmware on my phone with 955U, will I be able to return back to 955U if I do not like it?? What is the advantage of U1 on my ATT 955U phone??
Click to expand...
Click to collapse
YES you can Flash back to ATT U. I have done it.

What about "Smart View" (cellphone reflection in tv) in G955U1 with last Pie beta version (CRL2 -> ZSAB -> ZSBB -> ZSC2)... any issue

T0nyCr said:
What about "Smart View" (cellphone reflection in tv) in G955U1 with last Pie beta version (CRL2 -> ZSAB -> ZSBB -> ZSC2)... any issue
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Click to collapse
Nope... none problem... everything ok:good:

TheMadScientist said:
When you click reboot to bootloader it takes you to what as known as download mode which is how we flash stock firmware. And maybe a couple other things but yea mainly for stock firms. Its used by a program called odin and the latest is 3.13 i believe.
Click to expand...
Click to collapse
please I wnt clarification ...I bought g955u as used phone ..I hv oreo on it is stock from HK hongkong. and I know g955u is US variants can I flash US g955u1 firmware unlocked on it or g955u unlocked? am in Africa.
thanks

folusmile said:
please I wnt clarification ...I bought g955u as used phone ..I hv oreo on it is stock from HK hongkong. and I know g955u is US variants can I flash US g955u1 firmware unlocked on it or g955u unlocked? am in Africa.
thanks
Click to expand...
Click to collapse
Yes you can flash the u1 firm Ware as long as its the same revision bootloader 5th digit from the last.
I think you have to flash the equal combination file first

TheMadScientist said:
Yes you can flash the u1 firm Ware as long as its the same revision bootloader 5th digit from the last.
I think you have to flash the equal combination file first
Click to expand...
Click to collapse
Thanks
---------- Post added at 08:51 AM ---------- Previous post was at 08:50 AM ----------
TheMadScientist said:
Yes you can flash the u1 firm Ware as long as its the same revision bootloader 5th digit from the last.
I think you have to flash the equal combination file first
Click to expand...
Click to collapse
I want to flash pie can I process?

Links for AT&T and Cricket USERDATAs

I know these are much tougher to find - can't be obtained from SamFirm or SamMobile. So I'll be uploading one for each carrier, for each bootloader version. Firmware is universal on U models so you can use the other 4 files from any other matching collection. Can probably even mix and match builds, if you can't find files for the exact same build. Can't mix and match bootloaders though, so the other 4 files have to at least be from the same bootloader.
USERDATAs for any other CSCs can be gotten from SamFirm - for the latest version. If you need an old USERDATA for a CSC that's not commonly found on SamMobile (ACG, LRA, TFN, etc), let me know and I can probably get it.
You'll need 7-zip to extract.
https://www.androidfilehost.com/?w=files&flid=283166

SC1 USERDATA was added a few days ago, for anyone wanting to jump to Pie

ATT USERDATA added for bootloader 6

bootloader 6 userdata
Sorry if I am posting in the wrong spot I am new to this forum but I was wondering if someone can extract AT&T userdata for Odin Product code ATT
PDA G950U1UES6DSG1
CSC G950U1OYM6DSG1
I had it for 5 and didn't realize that this upgrade was 6. I need my wifi calling because I am in the hospital a lot and don't have reception. Please help I would really appreciate it!

Jaldrich1992 said:
Sorry if I am posting in the wrong spot I am new to this forum but I was wondering if someone can extract AT&T userdata for Odin Product code ATT
PDA G950U1UES6DSG1
CSC G950U1OYM6DSG1
I had it for 5 and didn't realize that this upgrade was 6. I need my wifi calling because I am in the hospital a lot and don't have reception. Please help I would really appreciate it!
Click to expand...
Click to collapse
USERDATA only applies to U firmware, not to U1. If you don't have wifi calling while on U1 firmware, then you need to change to U firmware, with all of your carrier's bloatware

Cricket USERDATA added for bootloader 6

iBowToAndroid said:
ATT USERDATA added for bootloader 6
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Click to collapse
Thanks! I am not on AT&T but used this to enable future OTA upgrades. Other than the bloat (expected), it worked well.

rexian said:
Thanks! I am not on AT&T but used this to enable future OTA upgrades. Other than the bloat (expected), it worked well.
Click to expand...
Click to collapse
AT&T puts blocks in their firmware so that OTAs don't work if you're not using AT&T service - even if it's one of their own MVNOs. So if you're not an AT&T customer, you do NOT want to be on their firmware

What are the restrictions on userdata? I assume that the userdata should much the security level? Is there any other restriction

prince_72 said:
What are the restrictions on userdata? I assume that the userdata should much the security level? Is there any other restriction
Click to expand...
Click to collapse
It at least has to match the bootloader version. YMMV if the USERDATA isn't the exact same build as the base files

Sorry if this is a stupid question, but I have a SM-G950U1 (unlocked Galaxy S8). Can I use this to flash it to make it a SM-950U (ATT locked Galaxy S8)? I want to get the official ATT firmware to be able to use Wi-Fi calling and other ATT features.

chuckguy17 said:
Sorry if this is a stupid question, but I have a SM-G950U1 (unlocked Galaxy S8). Can I use this to flash it to make it a SM-950U (ATT locked Galaxy S8)? I want to get the official ATT firmware to be able to use Wi-Fi calling and other ATT features.
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Click to collapse
It won't SIM lock it. And you won't get wifi calling. But you'll get most of the rest of their features

iBowToAndroid said:
It won't SIM lock it. And you won't get wifi calling. But you'll get most of the rest of their features
Click to expand...
Click to collapse
By chance you don't know where I can find a rev 7 for cricket. Our a user data at least?

TheMadScientist said:
By chance you don't know where I can find a rev 7 for cricket. Our a user data at least?
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Click to collapse
Hasn't been released yet. T-Mo and Metro are the only ones who have actually gotten a rev 7 OTA so far. But i'll definitely post them when I get access to them.
I did just notice that I had never uploaded the rev 6 Cricket USERDATA, so that is done now

iBowToAndroid said:
Hasn't been released yet. T-Mo and Metro are the only ones who have actually gotten a rev 7 OTA so far. But i'll definitely post them when I get access to them.
I did just notice that I had never uploaded the rev 6 Cricket USERDATA, so that is done now
Click to expand...
Click to collapse
That's weird. I'm on revision 7 and supposedly on aio
I'm trying to get my wifi calling to work. Cricket says it will even on byod after like blq1 or some oreo firmware. On the u model. All I found was a u1
https://www.reddit.com/r/CricketWir..._source=amp&utm_medium=&utm_content=post_body

TheMadScientist said:
That's weird. I'm on revision 7 and supposedly on aio
I'm trying to get my wifi calling to work. Cricket says it will even on byod after like blq1 or some oreo firmware. On the u model. All I found was a u1
Click to expand...
Click to collapse
U1 has gotten rev 7, yes. When I said that "T-Mo and Metro are the only ones" that have gotten it, I was referring to the carriers themselves, which is U firmware.

iBowToAndroid said:
U1 has gotten rev 7, yes. When I said that "T-Mo and Metro are the only ones" that have gotten it, I was referring to the carriers themselves, which is U firmware.
Click to expand...
Click to collapse
I never could find a u firmware for cricket. I only assumed u1 existed

TheMadScientist said:
I never could find a u firmware for cricket. I only assumed u1 existed
Click to expand...
Click to collapse
Well firmware is universal - there is no such thing as "Cricket firmware". But there are Cricket USERDATAs, yes. Only thing is that their S8 hasn't gotten the rev 7 OTA yet, so the Odin files haven't been published yet either

iBowToAndroid said:
Well firmware is universal - there is no such thing as "Cricket firmware". But there are Cricket USERDATAs, yes. Only thing is that their S8 hasn't gotten the rev 7 OTA yet, so the Odin files haven't been published yet either
Click to expand...
Click to collapse
Dont know if the rev 7 is out yet do ya?

TheMadScientist said:
Dont know if the rev 7 is out yet do ya?
Click to expand...
Click to collapse
No, no rev 7 update for the AT&T or Cricket models yet

Which region for unlocked Canadian phone

Hello all,
My phone is properly stuck in a bootloop and keeps going into download mode, tried for a few hours to get it out but no luck.
I want to flash new firmware, my device is a SM-G930W8 but I don't know the region.. I bought it unlocked from the Samsung Experience Store in Edmonton, Canada when it right came out, but threw the box already.
Which firmware region would I need?
Thanks!

rogier121 said:
Hello all,
My phone is properly stuck in a bootloop and keeps going into download mode, tried for a few hours to get it out but no luck.
I want to flash new firmware, my device is a SM-G930W8 but I don't know the region.. I bought it unlocked from the Samsung Experience Store in Edmonton, Canada when it right came out, but threw the box already.
Which firmware region would I need?
Thanks!
Click to expand...
Click to collapse
You can download branded to the network your using or unbranded. The firmware that just says "Canada" is unbranded generic.
https://www.sammobile.com/firmwares/galaxy-s7/SM-G930W8/

cooltt said:
You can download branded to the network your using or unbranded. The firmware that just says "Canada" is unbranded generic.
https://www.sammobile.com/firmwares/galaxy-s7/SM-G930W8/
Click to expand...
Click to collapse
Ok I see, so XAC is essentially the unbranded ones?

rogier121 said:
Ok I see, so XAC is essentially the unbranded ones?
Click to expand...
Click to collapse
yes

Question Does the U1 firmware care if the phone is still locked?

So the other day I got my S21+ in the mail from Verizon. I immediately flashed the U1 firmware without first activating the phone(I know, dumb for various reasons). But now when I put my sim card in it activates for a few minutes before saying I can't use this phone on another network currently. Even though it's a Verizon phone and service.

Yes, flash the verizon first. Then activate it.
Then flash U1 if you want.

Kenora_I said:
Yes, flash the verizon first. Then activate it.
Then flash U1 if you want.
Click to expand...
Click to collapse
And after it activates with the verizon firmware it won't care if I flash it to U1 after that? Or should I wait the 60 days for verizon to unlock it?

Kenora_I said:
Yes, flash the verizon first. Then activate it.
Then flash U1 if you want.
Click to expand...
Click to collapse
Also do you know a good place to get verizon

sammobile has all the varient firmwares.

Kenora_I said:
sammobile has all the varient firmwares.
Click to expand...
Click to collapse
Nothing new enough for me to flash over the most recent firmware sadly.

Question Change Service Provider Software

Hi all,
I bought this phone from my friend who was using it on ATT. It is global unlocked phone and I activate and register, change new 5gsim and no problem on Verizon Network.
It is working and fine but, it shows ATT logo when phone is boot up and still it has ATT bloatware.
Under the Software information > Service provider software version is showing below
SAOMC_SM-F711U_OYN_ATT_RR_0016
ATT/ATT/ATT
SO THIS PHONE IS legit!! even Verizon told us. They did everything with me for 3 hours. wow!
Anyway, I think it's the problem of other carrier's software is in
Do you guys know how to change provider software to Verizon? should I contact Samsung??
Please help me.
Thank you!!!!!!!!

Leeman78 said:
Hi all,
I bought this phone from my friend who was using it on ATT. It is global unlocked phone and I activate and register, change new 5gsim and no problem on Verizon Network.
It is working and fine but, it shows ATT logo when phone is boot up and still it has ATT bloatware.
Under the Software information > Service provider software version is showing below
SAOMC_SM-F711U_OYN_ATT_RR_0016
ATT/ATT/ATT
SO THIS PHONE IS legit!! even Verizon told us. They did everything with me for 3 hours. wow!
Anyway, I think it's the problem of other carrier's software is in
Do you guys know how to change provider software to Verizon? should I contact Samsung??
Please help me.
Thank you!!!!!!!!
Click to expand...
Click to collapse
Flash a U1 software and VZW userdata.

rogerandgina06 said:
Flash a U1 software and VZW userdata.
Click to expand...
Click to collapse
Thank you for reply. I don't know what you mean and how should I do it?
Would you let me know?

Leeman78 said:
Thank you for reply. I don't know what you mean and how should I do it?
Would you let me know?
Click to expand...
Click to collapse
Read here to get a idea.
F711U and F711U1 Firmware Links and Flashing Discussion Here
(WIP, files are currently processing and uploading) For those who aren't already aware, F711U is the model number of all of the US carrier versions of the Z Flip3. The F711U1 is the model number of the same device, but sold by Samsung SIM...
forum.xda-developers.com

rogerandgina06 said:
Read here to get a idea.
F711U and F711U1 Firmware Links and Flashing Discussion Here
(WIP, files are currently processing and uploading) For those who aren't already aware, F711U is the model number of all of the US carrier versions of the Z Flip3. The F711U1 is the model number of the same device, but sold by Samsung SIM...
forum.xda-developers.com
Click to expand...
Click to collapse
I found solutions and flash the firmware with Verizon userdata, but, still shwoing everything on ATT. Not Verizon.
I even flash with factory reset. Yes, I used Odin 3.13.1b patched and it passed...
Do you have any idea?

Leeman78 said:
I found solutions and flash the firmware with Verizon userdata, but, still shwoing everything on ATT. Not Verizon.
I even flash with factory reset. Yes, I used Odin 3.13.1b patched and it passed...
Do you have any idea?
Click to expand...
Click to collapse
Try google to search for a different csc. After that I don't have a clue...

I got it working. Thank you. your "Flash a U1 software and VZW userdata." help me a lot.
I did find out good firmware and software at Sammobile and now everything works as Verizon.
Thank you

Leeman78 said:
I got it working. Thank you. your "Flash a U1 software and VZW userdata." help me a lot.
I did find out good firmware and software at Sammobile and now everything works as
Leeman78 said:
I found solutions and flash the firmware with Verizon userdata, but, still shwoing everything on ATT. Not Verizon.
I even flash with factory reset. Yes, I used Odin 3.13.1b patched and it passed...
Do you have any idea?
Click to expand...
Click to collapse
Can you link me to the one you used ? I’m trying to flash mine to u1 and I can’t get it to pass for anything, I keep getting model mismatch or complete write fail
Click to expand...
Click to collapse

@iHeartslutsz https://www.sammobile.com/samsung/galaxy-z-flip-3/firmware/#SM-F711U1

Whenever I flash a new software through Odin after downloading it from Sammobile, the Dark Side RC theme (I think it's related somehow to the so called Star Wars special edition) for samsung, comes as one of two default themes into the system and can not be removed. Hence, even I change the theme from setting, this iron head appears everytime I restart the phone for a few seconds. So I tried different firmwares for my country but nothing changes. So someone from another forum said that my service provider software version differs than theirs. So in short, how to get rid of this silly iron head? Any help would be appreciated.

change csc, use SamKEY (paid) or SamFwFRPTool (free), then flash frimware you need with odin with CSC file (this will wipe your phone and reset to factory), not use home_csc in odin

wojtas69 said:
change csc, use SamKEY (paid) or SamFwFRPTool (free), then flash frimware you need with odin with CSC file (this will wipe your phone and reset to factory), not use home_csc in odin
Click to expand...
Click to collapse
Thank you. I downloaded totally different firmware files with different CSC code and the problem has solved.

SamFwFRPTool is a tool I use to change my CSC software channel. The way I understand it you need to change the CSC in the program before flashing the u1 software on it so you get a full unlock as opposed to a partial one.
I might be wrong here though so don't take everything I say as being true.