yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Z Fold3] Arhigos:
Hello guys. I was wondering is that possible to convert F926U (i have unlocked ATT) into F926B? The reason why i'm asking is because i want to have two sim card and i can see second sim card contacts in sim-tray.

I was curious if i try to flash global firmware and order a $5 new dual-sim card slot from ebay will it work? Or i will brick my phone?
[Samsung Galaxy Z Fold3] Meilyn22:
Hi guys. After changing to U1 on ATT I noticed sometimes my phone is unable to receive or make calls until I put it in airplane mode and remove it. I was expecting a call for a job interview and I couldn't get it because of this issue. Are there any fixes for this problem?
[Samsung Galaxy Z Fold3] iBowToAndroid:
No
[Samsung Galaxy Z Fold3] ast11:
I've a f926U with ATT I'm trying to reflash to TMB to get all the bloatware and customizations

I downloaded the latest with TMB csc with frija and installed them with odin with the full csc + userdata

my csc is still showing up as att/att/att with my tmobile sim and I'm still seeing att bloatware and boot screen.

what am I doing wrong?
[Samsung Galaxy Z Fold3] HelloG3_MotoNoMore:
Well, my best guess is you're not using the patched Odin. You need to make sure your CSC (in the phone and in Odin) shows as TMB and need to flash U1 firmware with T-Mobile USERDATA.
[Samsung Galaxy Z Fold3] ast11:
ok I was able to get it going.

for w/e reason using a tmb sim in my device didn't change the csc if I was using the U firmware. it kept it at att/att/att no matter what.

I reflashed to the U1 XAA firmware which finally switched the csc to tmb/tmb/att

I then flashed back to the U TMB firmware which now has the proper tmobile bloatware.
[Samsung Galaxy Z Fold3] HelloG3_MotoNoMore:
I woulda just left the U1 FW w/TMB USERDATA. What's the point of putting the U FW back?
[Samsung Galaxy Z Fold3] ast11:
didn't know that was a valid option. any downsides either way?
[Samsung Galaxy Z Fold3] HelloG3_MotoNoMore:
Probably not, but I personally wouldn't want anything even remotely related to AT&T in any phone I own from now on. Loving my F916U1 on T-Mobile with only the necessary TMB stuff (VVM and WiFi Calling) (by flashing TMB USERDATA).

BTW... If you haven't tried Microsoft Launcher, do! Best launcher for a FoldX... Somehow it allows Android Auto to run with normal home screen.

And of course get Good Lock too. Enjoy!
[Samsung Galaxy Z Fold3] iBowToAndroid:
Yes, U1 needs to be flashed first
[Samsung Galaxy Z Fold3] THORMUNZ:
Any instructions on how you got the CSC to change? And is your phone initially a ATT variant or an unlocked? I have a vzw variant and for the life of me couldn't change it to tmb to gain access to the 5G bands and just yesterday I made the switch to flash Canadian XAC and that actually changed my CSC to XAC/XAC/VZW and now my phone connects to 5G but I'm still missing out on 2 bands for mmwave5G.
[Samsung Galaxy Z Fold3] HelloG3_MotoNoMore:
Mine's an original F916U1. All I did was put in the T-Mobile SIM and flash TMB USERDATA.

I really don't know what to suggest for your F926xx situation at this point.

@iBowToAndroid ...help?
[Samsung Galaxy Z Fold3] THORMUNZ:
Hehe all good from everything I've read and investigated it's very hard to switch CSC on a non U1 phone, so I'll be stuck on a Canadian firmware until a work around is discovered :)
[Samsung Galaxy Z Fold3] karrtoon:
Sorry so late, but i just got the z fold 3 unlocked from samsung, cricket is now selling the z fold 3 but I haven't been able to find their firmware, my phone will not stay connected or registered on network, always seems to have 5 bars but won't register...can someone point me in a direction or does it just not work with cricket yet. Of course cricket told me to go to samsung and samsung tested and said ev34ythings fine I need to talk to cricket.
[Samsung Galaxy Z Fold3] iBowToAndroid:
I have a source who can get me AT&T and Cricket firmware
[Samsung Galaxy Z Fold3] darkwing:
Did someone already get the June update for U1/XAA? (I didn´t. And its not yet on sammobile/frija)

(Just to explain my impatientness: I will have a business-trip in some days, where the eSIM/dualSIM update would be quite nice)

Hmm.. And maybe someone could explain me one thing that I still don´t understand:

If U are the provider version and U1 is the "unlocked and with no carrier bloatware" version. What are the so many U1-fimwares? ATT, TMB, XAA, ..... ? (No bloatware but different optimizations for the provider networks?)
[Samsung Galaxy Z Fold3] iBowToAndroid:
1. It's not out for XAA yet but you can flash any U1 firmware - doesn't have to be XAA

2. Yes, the reason for all the U1 versions is that each one has the Settings preconfigured to different optimizations for the provider networks. The reason that it doesn't matter which one you flash is that the phone will re-configure itself to match whichever SIM you insert
[Samsung Galaxy Z Fold3] darkwing:
Thank you very much for your answer. Then I´ll try AT&T for now, as I will likely not get any optimizations for my Austrian provider :alien:
[Samsung Galaxy Z Fold3] stephanberger4:
Anyone received the JUNE update on their FOLD 3 (US version) F926U1 ?
[Samsung Galaxy Z Fold3] stephanberger4:
Any idea why I didn't ?

I'm clicking 5 times a day to look for update but it still saying that I'm up to date with may update.
[Samsung Galaxy Z Fold3] iBowToAndroid:
You need to look up what "staggered update" means. Every single manufacturer uses them.

That's also the entire purpose of this thread: manual flashing, so you don't have to sit there mashing the Update button
[Samsung Galaxy Z Fold3] stephanberger4:
For all the previous updates, when I saw someone having it and telling it on twitter, I clicked on "check for update" and received it. First time that I don't.
[Samsung Galaxy Z Fold3] iBowToAndroid:
There's a first time for everything
[Samsung Galaxy Z Fold3] ultramaxoflagos:
Is there a link to get the June files? I have F926U1 and I am clearly at the back of the queue for staggered updates haha so I'd like to jump ahead as usual.
[Samsung Galaxy Z Fold3] iBowToAndroid:
SamFW.com has the fastest servers out of all the free sites that I've seen
[Samsung Galaxy Z Fold3] ultramaxoflagos:
Been checking for a few days now and they still dont have it. Any other recommendations? I'm surprised it isnt everywhere by now. Specifically for F926U1
[Samsung Galaxy Z Fold3] iBowToAndroid:
What are you talking about...? 1DVEE is the June update, and yes, SamFW has plenty of download links for it
[Samsung Galaxy Z Fold3] stephanberger4:
Hi,

So my phone has this version :

So, I went to sammobile and downloaded this one :

Is this exactly the same firmware version has I've got ? (meaning, if I should have received the official one by Samsung, would it be this one ?). I don't want to change the firmware of my phone just update it. I'm pretty sure there is a bug with software update as I'm still on may update and I'm seeing everyone getting the july update.

Thx !
[Samsung Galaxy Z Fold3] iBowToAndroid:
Yes
[Samsung Galaxy Z Fold3] gcounts:
My zf3 just updated this morning, I'm unlocked U1 on Visible network. My Note 10+5G just updated too, and is on Verizon. Both phones are showing June 1 security patch. So, maybe you'll get updated soon!
[Samsung Galaxy Z Fold3] stephanberger4:
Yes, I received literally 1 hour after my post....

Samsung are you here ?...😁
[Samsung Galaxy Z Fold3] DaReDeViL:
@smartmobee @Tamnguyen83

Ignoring our warningS about not using English resulted in the removal of your posts and so it will be for your future non-English posts.

Thank you for your understanding.
[Samsung Galaxy Z Fold3] cooldude20000:
so I see a new update on sammobile F926BTB1CVG2 but I have the

F926BOXM1CVF1 is cvg2 newer than cvf1
[Samsung Galaxy Z Fold3] iBowToAndroid:
This thread is not about the F926B
[Samsung Galaxy Z Fold3] shadeau:
Okay, I've read through this entire thread and I'm hoping I understand what to do. I have an att branded Fold3 and I'm just trying to update to Android 12. SamFW doesn't have any ATT firmware, but I've downloaded the latest TMB firmware (F926USQU1DVG7), the patched Odin, and the ATT userdata file for Android 12 from the OP's AFH link.

My plan is to use all of these files together and update my phone to the latest Android version without factory resetting the device. Will this work?
[Samsung Galaxy Z Fold3] iBowToAndroid:
You may have read the thread, but clearly not the OP. It states very clearly that flashing USERDATA wipes data
[Samsung Galaxy Z Fold3] shadeau:
Apologies for missing that line, thanks for clarifying.

So is everything else in my plan good? Sounds like the one extra step I'd need to do is remove my Google and Samsung accounts before flashing.
[Samsung Galaxy Z Fold3] iBowToAndroid:
If you're not doing a factory reset, then no, don't need to remove any accounts
[Samsung Galaxy Z Fold3] shadeau:
As you said, if I'm flashing USERDATA that will wipe data. I typically associate "wipe data" with a factory reset so I guess my question is do I need to remove Google and Samsung accounts if I'm flashing USERDATA? Also, the ATT USERDATA in the OP should work with any firmware of the same Android version?

Thanks for all the help!
[Samsung Galaxy Z Fold3] iBowToAndroid:
There's no need to flash USERDATA, if you're just updating software. So if you don't want to do a factory reset, I would just skip it
[Samsung Galaxy Z Fold3] iBowToAndroid:
Buy a different model from that country
[Samsung Galaxy Z Fold3] apfsx:
So with this you can flash SM-F926W to either U or U1 firmwares? I'm trying to flash Canadian version to either U1 XAA or U Verizon. It has been quite some time since I flashed but I just need to get into download mode and flash files from Frija correct? And pick CSC not Home CSC so the phone is wiped, no need to wipe or remove accounts beforehand correct?
[Samsung Galaxy Z Fold3] iBowToAndroid:
Yes, yes, and yes
[Samsung Galaxy Z Fold3] sirgawain123:
What are the contents of USERDATA?

As name implies.....is something you can extract, and then flash to a wiped device to partially/fully recover your settings and app data?

Thanks
[Samsung Galaxy Z Fold3] iBowToAndroid:
No, the name does not imply that. That's not the function of USERDATA
[Samsung Galaxy Z Fold3] Raiden8816:
I have a stupid question. My unlocked Fold 3 which is on Verizon still has yet to receive the OneUI 4.1.1 update. I'm still on version F926U1UEU1DVG7. I was curious if I can flash the XAA update F926U1UEU2DVI2 to get the OneUI 4.1.1 faster. If so, what settings do I need to select within Odin to not lose any data?
[Samsung Galaxy Z Fold3] iBowToAndroid:
Flash HOME CSC, not the regular CSC.

But, there doesn't appear to be a changelog posted for that version yet. So I can't confirm if it's 4.1.1, unless someone else can verify and chime in
[Samsung Galaxy Z Fold3] danny31622:
Do you happen to have the USERDATA for the current AT&T FIrmware (Which is now on Bootloader 2)? I tried the USERDATA that is linked in the first post but it failed in the patched ODIN.
[Samsung Galaxy Z Fold3] iBowToAndroid:
Does your device have bootloader 2?
[Samsung Galaxy Z Fold3] danny31622:
Yes, it has bootloader 2. I believe that is why the user data is failing when I try to flash it now. I had to send my phone into samsung under warranty for a failing wifi flex cable. The phone has been repaired but they also updated it to bootloader 2 before sending it back. I don't mind using it on unlocked firmware, but I usually flash ATT on my Samsung phones when possible.
[Samsung Galaxy Z Fold3] iBowToAndroid:
I have a source who can get me firmware for any USA Samsung model, but he charges me for each one. So it wouldn't be free
[Samsung Galaxy Z Fold3] danny31622:
What does he typically charge?
[Samsung Galaxy Z Fold3] maz1969:
Dear,

I have an unlocked f926u (f926USQS1AUJ6) still on UI 3.1.1 & android 11 and I am using it in Dubai on different network and sim.

It's not supporting esim, Which firmware should I use in order to be able to use esim and hard sim on any network?.
[Samsung Galaxy Z Fold3] iBowToAndroid:
Whatever the newest and latest is
[Samsung Galaxy Z Fold3] maz1969:
Dear,

Should I go for SM-F926U or SM-F926U1 since I will not use it with AT&T or any USA network?
[Samsung Galaxy Z Fold3] iBowToAndroid:
Makes absolutely no difference
[Samsung Galaxy Z Fold3] JaCkaL_Sense:
Hi there, my last line in service provider SW is

XAA/XAA,VZW/XAA

5G not working only LTE as i got the device from US to used in Saudi arabia, can i move to other firmware

It is SMF-926U1 OYM .

I read most of thread and made some searches and was looking for pit.file for z3 did not found it in Samsung site any help or guidance
[Samsung Galaxy Z Fold3] iBowToAndroid:
Are you saying that the phone model is F926U and you want to flash it to F926U1 firmware?
[Samsung Galaxy Z Fold3] JaCkaL_Sense:
Thanks for responding, i am saying it is U1 already , what i want to make 5g working only other is seems ok 4 me , how is my question
[Samsung Galaxy Z Fold3] iBowToAndroid:
The device may not support the 5G bands and frequencies used by your provider
[Samsung Galaxy Z Fold3] JaCkaL_Sense:
5g band with my provider is N 78 and as i did some searches the device is equipped to support this band , was trying to flash another stock firmware to it , after many reading i found the need to have PIT file but unfortunately it is not on website for Samsung pit files , any ideas to change firmware
[Samsung Galaxy Z Fold3] iBowToAndroid:
But does your provider use NR? Or is it a different 5G technology?
[Samsung Galaxy Z Fold3] JaCkaL_Sense:
Here is provider bands
[Samsung Galaxy Z Fold3] iBowToAndroid:
But that doesn't answer the question. The phone supports NR for 5G technology. If your provider uses a different technology, then the phone doesn't support it. So the question is whether your provider uses NR also
[Samsung Galaxy Z Fold3] JaCkaL_Sense:
However let me check and will get back asap.
[Samsung Galaxy Z Fold3] iBowToAndroid:
You're in the wrong thread
[Samsung Galaxy Z Fold3] Hashirama_Senju:
I keep getting this error when trying to flash the U1 firmware on my Locked Verizon Z Fold 3. Am I doing something wrong?

I do not want to lose my data so I'm using HOME_CSC. Will it go through if I just select CSC?

Also, I have no Userdata file (I downloaded using Frija)

Please help will be greatly appreciated.
[Samsung Galaxy Z Fold3] iBowToAndroid:
If you want the Thom Browne firmware, you probably need to wipe. Probably can only avoid the wipe if it's regular U1 firmware.

But that's just my guess. Did an error message appear on the phone screen, when the flash failed?
[Samsung Galaxy Z Fold3] kenbrownstone:
Is the the 5.o ? I have a locked Verizon too
[Samsung Galaxy Z Fold3] DarthScabrous:
If you have network issues after updating the 12 OS and UI 4, is there a way to fix it without sending it to Samsung? I bought it second hand.
[Samsung Galaxy Z Fold3] iBowToAndroid:
Depends on what the specific issue is, and what the fix would be for it.
[Samsung Galaxy Z Fold3] DarthScabrous:
It's cellular. It randomly cuts out and comes back on. Tried multiple confirmed working Sims with the same issue
[Samsung Galaxy Z Fold3] iBowToAndroid:
If that started happening after a software update, logic dictates that you should be able to fix it by flashing back to the previous version. And then once Samsung issues a fix for the buggy version, then you can update again
[Samsung Galaxy Z Fold3] DarthScabrous:
The thing I'm worried about is others on here have said that they had to send it to Samsung to get the pba replaced. But I don't know if that is the only option.
[Samsung Galaxy Z Fold3] iBowToAndroid:
That's not the subject of this thread. So you might get more answers by posting in a thread that's specifically about the issue that you're having
[Samsung Galaxy Z Fold3] nolidzh:
I have an unlocked TMB version, can I infer from this that I can use other versions of the F926U or U1 software. For instance Xfinity has released 13/OUI5 but TMB has not. Can I use their firmware? Should I just be extra patient and wait for the U1 to release? TMB seems to be the last to update and I just switched from an Android 13 device to the Z Fold 3 and would like it sooner rather than later. Thanks!

(Long time lurker 15+yrs, first time poster)
[Samsung Galaxy Z Fold3] iBowToAndroid:
From the OP:

"Firmware is 100% interchangeable among these models: any U or U1 firmware version can be flashed to any U or U1 device at any time, assuming that you're not trying to downgrade the bootloader."
[Samsung Galaxy Z Fold3] nolidzh:
Indeed. Thanks. I suppose I wanted to clarify since this thread was A12 based, and now we're on to A13.
[Samsung Galaxy Z Fold3] iBowToAndroid:
No, it's not "based" on any specific Android version. And even so, Android 11 is what the phone was released with, so if even everything in the OP only applied to one version, it would be 11
[Samsung Galaxy Z Fold3] jshuler:
The U1 firmware folder is empty. Also, my Verizon U was updated to Android 13, and I can't seem to find either the U or U1 odin recovery...
[Samsung Galaxy Z Fold3] iBowToAndroid:
Not sure what an "odin recovery" is...
[Samsung Galaxy Z Fold3] abrarabbu:
Hello

Someone said its not possible on early pages, but I still wanted to ask and confirm its still the case.

I have unlocked U1 fold 3 and want to convert it to W Canadian unlocked

Can I use patched odin
[Samsung Galaxy Z Fold3] rakesh.iocl:
Can I install a SM-F926B rom in an SM-F926U/U1 device? please help.

The device I have is an unlocked AT&T unit. I flashed U1 rom through Odin. But I want to use B version with INU CSC (India).

Please help..
[Samsung Galaxy Z Fold3] HelloG3_MotoNoMore:
Absolutely NOT. B = Dual SIM and Different Modem.
[Samsung Galaxy Z Fold3] iBowToAndroid:
Nope. If you want Indian CSC features, then buy an Indian device
[Samsung Galaxy Z Fold3] rakesh.iocl:
Thanks for the reply, but the U/U1 unit is also a Dual Sim one, 1 physical sim and one eSIM.
[Samsung Galaxy Z Fold3] LocBox:
Hey @iBowToAndroid , having an issue.. So I have a U1 model and I'm trying to flash to full U VZW. I already flashed it to TMO the other day and it read as TMB/TMB/TMB/XAA, but with Verizon I'm only getting VZW/VZW/TMB/XAA. How do I flash it to be VZW/VZW/VZW/XAA? I used Xfinity's CSC to create the radio files first.
[Samsung Galaxy Z Fold3] iBowToAndroid:
The last 2 are the eSIM CSCs i believe. So i think you'd have to activate a Verizon eSIM to change that one.

I'm not 100% sure though. I don't know much about how the last 2 work and this isn't really a "changing CSC" thread
[Samsung Galaxy Z Fold3] LocBox:
Yea I basically just want the advanced messaging and vidcalls from vzw but I'm having a tough time activating them. I just get an error message when I click chat settings.
[Samsung Galaxy Z Fold3] iBowToAndroid:
As long as the first 2 say VZW and it shows their logo when it boots up, you should have all of their bloat + features.

The error message might be an IMEI block - they might not have U1 devices whitelisted for those features
[Samsung Galaxy Z Fold3] LocBox:
Okay well, VZW just doesn't wanna play nice with U1 devices no matter what way you try. The U Firmware loads all the typical VZW bloat etc., and you can access WiFi calling/VoLTE. However, the native Video Calling isn't accessible, and the chat features are not working. You can't even access their settings, so the best flash over from a U1 is to TMO in my experience so far. TMO grants full access to all features, and assuming AT&T is probably similar. However, one odd thing with TMO that's been persistent for a while now, is the refusal to play nice with the native Visual Voicemail app. Strangely VZW doesn't mind if you use the native VV app over VZW's, but for some inexplicable reason TMO only gives you the option to call in when you attempt to use it. I much prefer Samsung's implementation of VV over TMO's so that tidbit is annoying. If anyone knows a workaround for that, I'd appreciate the fix.
[Samsung Galaxy Z Fold3] LocBox:
currently i'm trying to go back to full XAA but it's still showing VZW on all slots but the last. How do i fix this?
[Samsung Galaxy Z Fold3] iBowToAndroid:
There are ways to change it, but it doesn't matter. Its just gonna change itself right back, to whatever SIM you're using in it
[Samsung Galaxy Z Fold3] LocBox:
out of curiosity, what are the ways i could do it?
[Samsung Galaxy Z Fold3] iBowToAndroid:
Get a professional 3rd party company to do it, using mobile technician tools
[Samsung Galaxy Z Fold3] SyCoREAPER:
I'm necro posting hoping someone here has any further info. This is the ONLY thread on all the interwebs where I've seen anyone else say that have an XAU CSC. I too am stuck with this damn CSC and can't get rid of it.

So is the consensus that XAU is basically XAA? I crossflashed like I would have any other device in the past (except that this is my first carrier device) but instead of the expected U1 XAA, I'm U1 now but still XAU
[Samsung Galaxy Z Fold3] yygemmi770:
XAU is essentially T-Mobile. However, if never activated with T-Mobile SIM (does not need to be active) on U package, it sort of stays XAU. You can also use MetroPCS SIM (does not need to be active).

Basically on U package from a factory data reset, have a T-Mobile or Metro SIM in the phone and go through the initial phone setup process.

You will know if this is needed when attempting to setup the phone without SIM, because it will not let you continue until you insert SIM.

If this is not happening to you, then it is another issue. However, I have only seen phones stuck on XAU if this process was not done.
[Samsung Galaxy Z Fold3] matti88:
Flashing firmware never changes a CSC. And even if you changed it to XAA, it would change right back to match the SIM that you have inserted, unless you disabled CIDManager
[Samsung Galaxy Z Fold3] SyCoREAPER:
XAU is however some mystery CSC that really shouldn't be there. My phone is TMB, my SIM is TMB but the CSC is XAU.

That aside however, I'm going back to U-Firmware. TMobile crippled so many features on this CSC it's useless to me.
[Samsung Galaxy Z Fold3] yygemmi770:
If you go back on the U package, there is a chance afterward it will not be XAU, and then you can flash back, I have also seen this on units that are still carrier locked.
[Samsung Galaxy Z Fold3] SyCoREAPER:
I meant to quote you but got ninjad by you.

It's odd, initial setup was done with the SIM but I guess I'll revert back as planned anyway and see what happens.

I don't know if it's Android 14 or this CSC but a bunch of workarounds i had dont work or actually say blocked now.

PLUS which in really ticked off about, the Band Selecter tool is blocked all together and no workaround la work to get to where I want to go. The SIM section that AOSP has where you can name sims and change their color. Now my one SIM is just called TMobile and is pink. This is the first skin hindrance I've encountered. Pink.. I don't want to see that every message I send.
[Samsung Galaxy Z Fold3] yygemmi770:
Once you go back to U package, check to see if the phone is network unlocked. It might need this to get off XAU. It should be showing TMB under CSC not XAU. As for those other issues, can't help there. But I do know that certain functionality is missing from U1 flash.
[Samsung Galaxy Z Fold3] diamant3:
Am I mistaken or when flashing firmware the phones are now accepting the sim card with service.. like a sim unlock?
[Samsung Galaxy Z Fold3] matti88:
You're mistaken. Either you're using a SIM from the original carrier, or the phone was already unlocked
[Samsung Galaxy Z Fold3] Nikhil2609:
Hi, my phone with model number SM-F9261U1 with software version SAOMC_SM-F926U1_OYM_XAA_14_0018 ΧΑΑ/ΧAA,ΧΑΑ/ΧΑΑ

i want to change it to Indian csc INS or INU,

do any possible ways to do it?

wiping data is no issue .
[Samsung Galaxy Z Fold3] matti88:
No. If you want Indian software features, you need to buy an Indian model
[Samsung Galaxy Z Fold3] iBowToAndroid:
You won't get AT&T bloatware unless at least 1 of the first 2 changes to ATT. Insert an actual AT&T SIM (not FirstNet) and see if it prompts you to "reboot to apply new carrier settings"
[Samsung Galaxy Z Fold3] sllong:
I am looking to use VOLTE, wifi calling, and visual voicemail