How To Guide F711U and F711U1 Firmware Links and Flashing Discussion Here

[yygemmi770]

How do I differentiate between the TB files and the non TB?

I think I figured it out there is TB in the file name lol

 

[iBowToAndroid]

I think I figured it out there is TB in the file name lol

It's in the CSC, yes. I think it says TBU in the middle, instead of OYN or OYM

 

[yygemmi770]

looks to be right there in the file name. Well, I have some reflashing to do now to get these flips not to be Thom Browne lol

 

[snownh2o2]

Yep

Can you do calls/texts/data though?

Nope... no calls, no texts, no data whatsoever.

I notice in Access Points it does list ATT stuff, but no connections

 

[snownh2o2]

Nope... no calls, no texts, no data whatsoever.

I notice in Access Points it does list ATT stuff, but no connections

I just got this response from uscellular re confirming that my device is Sim unlocked.

I'm baffled. Is there something that I am overlooking. Any suggestions are more than greatly appreciated.

 

[iBowToAndroid]

I just got this response from uscellular re confirming that my device is Sim unlocked.

I'm baffled. Is there something that I am overlooking. Any suggestions are more than greatly appreciated.

You yourself bought it from USC, correct? So there's no chance that the phone got blacklisted?

 

[snownh2o2]

You yourself bought it from USC, correct? So there's no chance that the phone got blacklisted?

The story is a bit odd but legit. I preordered and purchased an unlocked Z Flip 3 5G (sm_f711u1) from Samsung directly via their website. They mistakenly sent me a US Cellular (sm_f711u USC) phone. Customer service refused to exchange the device even though it was their mistake. They wanted me to return it and re order another one. Since I preordered, it would have cost me a few hundred more all said and done. And they refused to work with me.

They told me my only option was to contact US Cellular to get it unlocked. I did so and because it was fully paid for via Samsung US Cellular unlocked it for me. I put in my ATT sim, and it worked fine for months.

The change occurred when ATT shut down their 3G network last week. At first I lost both 4G and 5G functionality but oddly enough 3G data (HSPA+) and the phone/text networks worked. However a few days later everything stopped.

This is when I decided I needed to load clean firmware. However no luck so far. I am wondering if I should try loading the original U firmware from when the device released and try to find the ATT_USERDATA that corresponds and then let it OTA update. Does this sound like a valid idea?

 

[yygemmi770]

The story is a bit odd but legit. I preordered and purchased an unlocked Z Flip 3 5G (sm_f711u1) from Samsung directly via their website. They mistakenly sent me a US Cellular (sm_f711u USC) phone. Customer service refused to exchange the device even though it was their mistake. They wanted me to return it and re order another one. Since I preordered, it would have cost me a few hundred more all said and done. And they refused to work with me.

They told me my only option was to contact US Cellular to get it unlocked. I did so and because it was fully paid for via Samsung US Cellular unlocked it for me. I put in my ATT sim, and it worked fine for months.

The change occurred when ATT shut down their 3G network last week. At first I lost both 4G and 5G functionality but oddly enough 3G data (HSPA+) and the phone/text networks worked. However a few days later everything stopped.

This is when I decided I needed to load clean firmware. However no luck so far. I am wondering if I should try loading the original U firmware from when the device released and try to find the ATT_USERDATA that corresponds and then let it OTA update. Does this sound like a valid idea?

So after reading this, I have two questions.

1. When you first bought the phone did it boot up US Cellular?
2. When the phone was "unlocked" by USC was the phone on U1 or U?

It could be a similar situation that I have seen with VZW units, where in order for the phone to "unlock" it has to be on the original U package to process the unlock.

Your screenshots appear to be acting like a locked unit.

 

[snownh2o2]

So after reading this, I have two questions.

1. When you first bought the phone did it boot up US Cellular?
2. When the phone was "unlocked" by USC was the phone on U1 or U?

It could be a similar situation that I have seen with VZW units, where in order for the phone to "unlock" it has to be on the original U package to process the unlock.

Your screenshots appear to be acting like a locked unit.

1) When it first arrived it did boot up US Cellular
2) After the phone was unlocked it was still U. If I recall correctly, for a while after it was unlocked it still had the US Cellular boot animation, however it eventually if think that may have went away I think. Though I am not fully sure if and when that actually changed as I have my phone restarts itself over night and don't regularly see the boot animation.

Am I understanding what you are saying for the VZW units in reference to mine. I should try loading the U firmware with the HOME_CSC_OYM from USC instead of the CSC_OYM. This will make the phone be a stock US Cellular with bloat. Once loaded and restarted, Insert the ATT sim and cross my fingers that it switches to ATT? Should I use current firmware or try the older versions?

Just to confirm HOME_CSC includes the user data/bloat, so I do not need to add a user data file in Odin?

 

[yygemmi770]

1) When it first arrived it did boot up US Cellular
2) After the phone was unlocked it was still U. If I recall correctly, for a while after it was unlocked it still had the US Cellular boot animation, however it eventually if think that may have went away I think. Though I am not fully sure if and when that actually changed as I have my phone restarts itself over night and don't regularly see the boot animation.

Am I understanding what you are saying for the VZW units in reference to mine. I should try loading the U firmware with the HOME_CSC_OYM from USC instead of the CSC_OYM. This will make the phone be a stock US Cellular with bloat. Once loaded and restarted, Insert the ATT sim and cross my fingers that it switches to ATT? Should I use current firmware or try the older versions?

Just to confirm HOME_CSC includes the user data/bloat, so I do not need to add a user data file in Odin?

It will not auto switch to ATT usually as ATT files are not publically available. I am wondering if your unit is stuck on USC CSC. Under settings what does it show? like ATT/USC/USC?

Basically my thought was to load the USC flash, however because you probably don't have USC sim card, I usually just flash a U package with no SIM and no user data, after the flash the phone will go to the system menu where you select wipe data cache partition, also do factory reset from the menu, then reboot. Because the sales code of the phone is USC it should boot itself back up to what the sales code is.

This is just to confirm that the phone is unlocked properly as some unlocks require it to be on their carrier specific software. I am trying to figure out what exactly happened where it was working fine and then stopped, so I am just thinking start from the beginning to cover all bases and then see where that leads us.

Use CSC not HOME CSC as we want a clean flash. The carrier bloat is on U package. U1 package is bloat free. In your case you want the bloat to confirm unlock is processed properly. After that, you could flash U1 with no bloat, my concern is that your CSC may not be changing and might be stuck on USC CSC.

 

[snownh2o2]

It will not auto switch to ATT usually as ATT files are not publically available. I am wondering if your unit is stuck on USC CSC. Under settings what does it show? like ATT/USC/USC?

Basically my thought was to load the USC flash, however because you probably don't have USC sim card, I usually just flash a U package with no SIM and no user data, after the flash the phone will go to the system menu where you select wipe data cache partition, also do factory reset from the menu, then reboot. Because the sales code of the phone is USC it should boot itself back up to what the sales code is.

This is just to confirm that the phone is unlocked properly as some unlocks require it to be on their carrier specific software. I am trying to figure out what exactly happened where it was working fine and then stopped, so I am just thinking start from the beginning to cover all bases and then see where that leads us.

Use CSC not HOME CSC as we want a clean flash. The carrier bloat is on U package. U1 package is bloat free. In your case you want the bloat to confirm unlock is processed properly. After that, you could flash U1 with no bloat, my concern is that your CSC may not be changing and might be stuck on USC CSC.

I will try all that. But first, I am gonna look quick... I think there may have been a USC sim card that came with the phone in the samsung package.

If I recall, at least over the last week, after every flash it always goes to USC/USC/USC. And it is currently on that. Seemingly 'stuck' to USC.

I'm going to try all of your suggestions and hopefully I can report back all is well.

I greatly appreciate all of the time you are spending helping me with this issue!

 

[SadsSlx]

Hello, I can use this method in Samsung galaxy a52 5G? From at&t (A526u) I can't find anything related in the forum of my device

 

[yygemmi770]

Hello, I can use this method in Samsung galaxy a52 5G? From at&t (A526u) I can't find anything related in the forum of my device

What are you trying to do flash the phone without ATT bloatware?

 

[yygemmi770]

I will try all that. But first, I am gonna look quick... I think there may have been a USC sim card that came with the phone in the samsung package.

If I recall, at least over the last week, after every flash it always goes to USC/USC/USC. And it is currently on that. Seemingly 'stuck' to USC.

I'm going to try all of your suggestions and hopefully I can report back all is well.

I greatly appreciate all of the time you are spending helping me with this issue!

If it is reading USC/USC/USC, there is not much you can do and should really push to have the unit replaced if possible.

 

[SadsSlx]

What are you trying to do flash the phone without ATT bloatware?

Yes, I already did it, but my csc is xaa/xaa/att

 

[snownh2o2]

Basically my thought was to load the USC flash, however because you probably don't have USC sim card, I usually just flash a U package with no SIM and no user data, after the flash the phone will go to the system menu where you select wipe data cache partition, also do factory reset from the menu, then reboot. Because the sales code of the phone is USC it should boot itself back up to what the sales code is.

This is just to confirm that the phone is unlocked properly as some unlocks require it to be on their carrier specific software. I am trying to figure out what exactly happened where it was working fine and then stopped, so I am just thinking start from the beginning to cover all bases and then see where that leads us.

Sorry for the delay.... father in law passed this week.

I loaded the USC U flash with no sim and no user data. It went well however I did not see the option to wipe the data cache partition. Am I missing something or should that option been right on the menu? The factory reset was there and I did that.

The results seem to be the same as before.

Also, I then borrowed an active Sprint SIM and put it in the phone. I was able to make a call, though it never asked me to reset the phone. I did manually and I did not see the Sprint splash screen. But again I could make a call and see that the SIM was accessing the CDMA network. It seems to me this should verify SIM unlock, but I do wonder why I never saw the Sprint splash since I was on U firmware.

Finally, I stopped at the ATT store and got a new ATT SIM activated for my phone number. While there I told him about the problem that I was having and he said ATT was seeing this problem on various Samsung models that where unlocked but previously on other networks. He said, like in my situation, it started happening after ATT switched there voice network off of the 3G bands.

Thanks in advance for any assistance.

 

[ZeroCool11]

Hello, so I have an AT&T F711U and because I live in Mexico I didn't got the Android 12 version... and there's no update so I'm trying to put the U1 version but always fails...

on the phone it says

"SW REV CECK FAIL: [abl] Fused 2 > Binary 1
SECURE CHECK FAIL: abl(6)

I downloaded the U1 firmware from here.... anyone can help me out??

Thanks.

 

[yygemmi770]

Hello, so I have an AT&T F711U and because I live in Mexico I didn't got the Android 12 version... and there's no update so I'm trying to put the U1 version but always fails...

on the phone it says

"SW REV CECK FAIL: [abl] Fused 2 > Binary 1
SECURE CHECK FAIL: abl(6)

I downloaded the U1 firmware from here.... anyone can help me out??

Thanks.

It appears you are trying to flash the wrong binary. It looks like your phone is a 2 and you tried to flash a 1.

 

[Nino-dangelo]

sorry good evening I have my brother's sm-f711u blocked on verizon operator by fleschando this frimware I could unlock my cell (thanks in advance)

 

[cjdee1]

I have had a problem with the flip 3 and I could never get the advanced messaging to work. I have a locked device on ATT which is fine. The problem I have is the phone should be loading all this bloatware either. So I have booted up in service mode and was able to reset it only once to min. apps loading but because of other cloud apps the hacker was able to push a backup image. So now I tried to load the

USERDATA_ATT_F711USQS2BUL7_F711USQS2BUL7_SCL23064456_VCL23063627_MCL23269502_SQB47527176_VQB47527177_MQB47527153_REV00_user_low_ship_MULTI_CERT​

So am looking for some direction to resolve this minor issue.