yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] d_ganggreen:
What exactly is the caller id not doing? I flashed my U1 to the Tmo U and it is working for me.

v/r
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] COCODRILO45:
In uploading latest firmware to like Google drive i tried samsung site but it use less if I don't have premium
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
You need to use a U CSC that has a build as close to the U
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
You need to use a U CSC that has a build as close to the U1 build as possible. Also make sure you're using the regular CSC (not the HOME one)

No

It's already hosted on SamFirm and Frija. Anyone can get it themselves at any time. There's no sense in you downloading it, just to upload it somewhere else and post a link to it
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] SyCoREAPER:
Because I can host it somewhere where your download speeds won't be only 200kbps. But that's fine, less work for me, was just offering.

---------- Post added at 16:28 ---------- Previous post was at 16:26 ----------

I was getting no caller ID whatsoever. I went from U1 to U when it happened. When I went back to U1 it worked again.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] ZeroBarrier:
Did you debloat at all?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
You've clearly never used SamFirm or Frija. Download speeds are always blazing fast, because you're getting the firmware straight from Samsung's servers
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
Ain't that the truth!! It takes me longer to decrypt the firmware than it does to down load it. I suppose i just need a faster PC :p

Appreciate your instructions on getting these files loaded correctly bro :victory: [MENTION=3163377]iBowToAndroid[/MENTION]
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] SyCoREAPER:
Negative. Left everything untouched. Everything else behaved like a carrier device, the signal indicator was different, it showed the Enhanced Voice+ (which I now know to be active in U1, it just doesn't show the logo, native RCS and the T-Mobile boot logo. Just no Caller ID. Tried everything I could think of but gave up and went back to U1.

Nope I haven't, but reading the Samfirm page it says you can't download older firmware. I was simply offering it for archival purposes. Since some said they got the June update, like I just did, I thought that would mean the May firmware was gone if anyone needed that specific firmware.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Ahh, gotcha
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] ZeroBarrier:
Interesting, I did the same thing, flashed U1 to U TMB. Boot logo, native RCS is what I have noticed other than the fact that the T-Mobile variant has less bloat (which blows my freaking mind). But caller ID is something I never really pay attention to because people who call me are usually in my contacts list which works flawlessly, and the few unknown numbers that call me usually never show who it is anyways because they're spam calls. So I'm not even sure how to check if caller ID is even working on TMB.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
So I found out that my most recent flash using the U1 firmware with the U csc caused my Phone app to force close like you experienced! But the solution is to go to Galaxy store and update the apps and after update all is well ..... U1 firmware with all my ATT calling features

BTW again I didn't flash user data. Just BL, AP, and Cp from the U1 and the U csc
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
You know, I thought it was just an app update thing but did not have time to mess around.

I think I will try again now. Need to re-install mobile drivers. Just updated to the May 2020 Windows 10 with a fresh install... I'll post back in a bit with what I am seeing trying it the way you described.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
I used the ATE4 U1 firmware and the ATE6 U csc
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
It worked! Here is the thing this time... I did exactly like you said and the phone app is NOT crashing this time. This makes me think I could have mismatched something but normally that will throw an error at boot. Then there is also the possibility that there was some data somewhere that did not get cleared or just a bad flash. Who knows.

But the fact of the matter is your method does work as intended and I think you have saved my sanity! I couldn't take all the ATT bloat any more. Every time I would hide or disable one app another would seemingly pop up out of no where. Was driving me MAD! But I am cool now! Just got to restore the back up I made before flash and I am good!

Thanks!
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] SyCoREAPER:
Mine didn't force close, it just wouldn't get Caller ID info from the T-Mobile caller ID app. I had everything just like you, ONLY BL, AP and CP. After flashing I did a factory reset from recovery and updated everything, Play Store apps, Galaxy Store apps you name it.

So far all the success sounds like it's ATT users, I'd be interested to hear from some TMobile users and people that went the opposite direction like I did from U1 to U. You guys seem to be coming from U rather than U1 like I am.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
Weird stuff ..... Might literally be there first time that something worked for ATT but not for TMO. Lol

It seems like most of the time TMO will work without any special changes, where ATT had the proprietary crap esp with WiFi calling
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
I was and still am using the initial builds in the OP. I dont think I got OTA yet.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Well the stuff in the OP is 3-4 months old. So no, definitely haven't gotten any OTAs
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] mojicacarmelo:
hi guys a question i have an s20+ att and i have read i can patch it to u1 and keep wifi call from att if i use the u csc now if i patch the csc only i can still do OTA updates from u1 servers and if i can and let say later OTA i update after that update csc from the u will be like lost and be acting like an u1 or that will not be the case? i don't know if i explain what i want to find out correctly is a bit of a tricky question. thanks in advance
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
You know whats funny, I dont even have the ability to check for a software update in this config. Is that normal? If I were to download a later build of U1 could I flash the same AT&T CSC you posted?

EDIT: Looks like the CSC posted from the U build in this post works fine with the June update. I'll probably stop being so lazy and find a newer build but for now this works fine.

---------- Post added at 02:36 AM ---------- Previous post was at 02:23 AM ----------

I was unable to get any OTA Updates with the mismatched firmware but the WiFi calling and video calling does work. It will also include the horrible AT&T ringtones.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] mojicacarmelo:
All right i understand now guys thanks for the answers
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] hawkye:
Thanks all for your help! After reading all the posts, I was able to update my T-Mo U to June U1 using the May U CSC (not Home) so I could finally apply the June patch. Everything is working fine so far over the weekend.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
You will never get over the air updates this way. As a matter of fact I never got over the air updates when I was using u1 firmware even without the mismatched CSC
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
G988usqu1atec & g988u1ueu1atf1

New firmware available and samfirm is working great!!

I've had this device less than a month I'm really enjoying it :cowboy::good:

Cheers!!
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] katnapped:
I have a U1 on ATE4 with a Comcast SIM (rendering the phone to be a CCT). Can I take the SIM out and flash the XAA ATF1 (and if so, which parts as to not wipe the phone) or am I setting myself up for trouble? Doesn't seem like there's going to be an OTA update this month with the camera fixes so this seems like the only way I'm going to get them short of waiting until sometime in July for it.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
I don't know why it wouldn't work. I'm not saying it will or won't BUT it's always worth a try :laugh:

I back my phone up with smart switch and my google account.

I'm on AT&T and I never take my sd card out.

Which ATE4 region are you currently running?

I would try flashing the XAA ATF1 AP,BL, & CP with the CSC of the ATE4 you're currently running.

I'm currently on XAA ATF1 as above with USC ATEC CSC

Good luck holler if you need help :highfive:
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] katnapped:
*Seems* to have worked. Was getting no cell signal at first but I rebooted and it came back and seem to be working okay now. Won't be able to really test the camera out until this weekend to see if the update improved anything.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
Sweet so all updated to June security update?

Which CSC file did you use?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
I did the AT4 update from U1 along with CSC posted in the OP. Everything seems fine to me. I got the AT&T Features.

Its been a long time since I messed with Samsung files. A lot ha changed! Appreciate all the feedback guys!

Also, I got a brand new phone in today. It was an insurance replacement. Long story short, its up to date. Could I just flash the 3 partitions and factory reset to convert to U1? Or do I need to flash the CSC along with it?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
I would flash the U CSC with it

BTW I just updated from ATE4 to ATF1 by flashing the U1 files bl,ap and cp along with the u home CSC and all went well with no wipe
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
I did. I ended up flashing ATE4 with CSC from ATE6. All went well.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] xxxrichievxxx:
I'm trying to go back to unlocked firmware but I am still seeing ATT/ATT/XAA, how can I make my phone go XAA/XAA? For some reason, I am unable to change network mode and unable to select 5G. I am trying to see if I can go back to XAA if I am able to select and connect to 5G. I am currently with AT&T wireless but I am unable to connect to 5G - I am in a 5G area. I have the SM-G988U1 S20 Ultra 5G version.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
You can't make it go back to that.

5G is already enabled by default, so you'll need to contact your carrier for troubleshooting assistance if you aren't getting 5G
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] xxxrichievxxx:
Thank you for your reply! I was getting a little uneasy thinking my bands are locked because I didn't see the option to switch bands (network mode).
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
Nice I'm glad it all worked out for the good!! Victory ✌

This phone is kick ass :D
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
Hell yeah, so much cleaner without AT&T crap! Everyone should be doing this.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Bobby-g:
I upgraded my tmobile G988U to the latest June U1 firmware. I used the home csc that's part of the u1 firmware. Everything seems to be running fine except it says "Your current software version isn't supported. Please visit a service center." in the Software Update section. I'm wondering if everyone gets that.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
If your Baseband matches your Build Number, that message should go away if you do a factory reset
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
Like [MENTION=3163377]iBowToAndroid[/MENTION] said I had to do the same thing one time but I'm on AT&T. Crazy thing now my phone doesn't have an option to update in settings which I'm completely fine with because I never plan on taking another OTA ever as long as I can manually install whenever I want :D
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Bobby-g:
Thanks. Since everything is running fine, there's really no need to factory reset at the moment. It's too much hassle.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
Not really if you use smart switch and your google account it restores whatever you want.

Smart switch will even restore pics in your text messages you've sent...Google never did that for me on previous devices.

Cheers!!

Edit: previous devices NOT being Samsung
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Bobby-g:
Yup. I used Smart Switch to backup my device before doing the update. I just don'tfeel like reloading all my cards in SPay. Everything is working fine so I'm not worried about that error msg.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Bobby-g:
Here's an interesting thing I'm running into. When I try to activate Knox in ccswe app manager, I keep getting the error "failed to validate the product key". I don't think Knox is broken since sPay works fine. Any ideas?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] TechSilver13:
The Verizon patch ATEC hit the S20 Ultra today.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] lunarken:
Ya man like finally....
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Joe237:
Hello

I have s20 ultra Verizon , i been trying to change to att or unlocked firmware but unfortunately nothing works here is the current firmware is in my phone
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
"Nothing works" isn't very helpful. We need more details about the specific steps that you're attempting, and what error message(s) you're getting
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
Make sure you take out the VZW SIM card. I had the same issue with trying to convert my AT&T device BACK to an AT&T Device while it had a T-Mobile SIM. It would only boot T-Mobile despite flashing all the correct files.

I saw in the OP of this thread that you need to have the appropriate SIM card so I popped the AT&T SIM, re-flashed one more time and it worked fine.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Joe237:
I'm sorry, yes you are right, I tried different firmwares , I used U1 unlocked and U att on Odin patched , probably I been using the wrong version of firmware for my Verizon phone thats why I posted the firmware it using all ways the odin comes out with the ash256 error. I don't know if someone point me to the right firmware that I can use

Thank you.

---------- Post added at 09:51 PM ---------- Previous post was at 09:34 PM ----------

Thank you for your reply, I have att sim card on it , I bought the Verizon phone because it was very good deal, but the problem i have is when I try to flash it over Odin comes up with the error ash256 error I probably been trying the wrong firmware, thats why I posted the picture of the current firmware is on my phone I hope someone pointed me to the right firmware i can use
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] jcrompton:
You have to be sure and follow the instructions in the OP carefully .....

Did you flash the full U1 firmware with the ATT sim?

Your firmware in your pic still says U
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Scott:
If your getting that error than you are not using a patched Odin. The purpose of the patched Odin is by pass that check and force the firmware onto the phone. Besides that, maybe a corrupt file. My bet is on your Odin as I got similiar errors until I realized mine was not patched. Switched to the patched and was fine. Try the latest version from here: https://xdaforums.com/android/software/patched-odin-3-13-1-t3762572

Use this one: Odin3_v3.13.1_3B_PatcheD
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Assuming that you mean "SHA256" error, that means that you're not using Patched Odin
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] luis saucedo:
Help! Flash firmware G988u1 on G988u ATT

I want to install the firmware G988U1 on an ATT G988U SM4G988UAAATT attached photo with the info. It can?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Of course. That has already been answered many times, in the OP and in the thread
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
The latest T-Mobile ATF9 is working very well on my phone with AT&T sim. I flashed the HOME CSC and retained everything :good::cool:

Edit: it still has the June security level
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] oscarm003:
Quick question. I flashed my U1 version (Unlocked) with a U TMB carrier version a few months ago. I just realized that I haven't been getting OTAs. (Latest installed is the base firmware) Is this a known issue when flashing to a carrier firmware? Or did I do anything wrong while flashing? Settings show TMB/TMB/XAA.

Any help would be appreciated. Thanks!

Edit: I guess I initially flashed my phone with HOME_CSC, after reflashing with non HOME_CSC file OTAs are working now. Had to back up all of my data to my PC first though.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] EdgarPR:
Hi, I did the change, I took the Firmware from U1 of Verizon, and I put it in a U versión, the bootloader sill locked but is clean and I can update with OTA,

GREAT POST
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Yes
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
Installed latest U1 ATFB and again retained everything

:good::cowboy:
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] mopartonyg:
Where did you download it, I keep getting CRC error?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
I use frija its the best tool. Very fast downloads.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] sirjes:
Anyone knows what's the july update?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
It's out for the G988U1
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Demonface.24:
I want to get the eSim capabilities and I currently have an USA Sprint S20 Ultra. Would I be able to flash the UK CSC since they have the eSim capability enabled?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Does the UK model end in U or U1?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Demonface.24:
No i think its ends with B
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Then no, you can't
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
Finally got the the current G988U ATFG flashed I used the CCT and works great. I was being impatient last night for some reason odin would load the files just fine but it took almost a minute for it to start flashing the Software. All good now on AT&T :cool:
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
You can get it now on the G988U with country code CHA or CCT.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] glensta:
Hello All,

I have a Verizon S20 Ultra bootloader locked phone. I'd like to try this firmware. Do I flash the G988U_TAW_1.zip files?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
If you're thinking that the purpose of this thread is to unlock the bootloader, that isn't mentioned anywhere in the OP or in the thread
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] glensta:
Thank you :good: - I'm not thinking that. I was only thinking of flashing this firmware because it doesn't have the extra carrier junk on it and maybe it'll run better than the firmware i have currently. I'm aware the bootloader cannot be unlocked. I just need to know which files to flash exactly and if it's cool to flash them even though my bootload is locked?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Which files to flash has already been extensively mentioned and discussed in both the OP and the thread - and it's NOT the G988U files, if you're looking to remove carrier bloatware. I would recommend reading the OP again - carefully and slowly.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] tyrone1:
I keep getting crc error downloading U1 firmware with Frija and samfirm tool. I've tried on 2 different computers.

Strangely I can download the latest U firmware but not the U1.

Anyone having difficulties getting it?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] mopartonyg:
Yep I had to download it from Sammobile overnight, I refuse to pay for it. I could never get it to download from Frija or Samfirm either.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] Goddly:
having an issue with data. I'm on the verizon variant. Activated on sprint network. But after 10 seconds of 3g. The symbol grayed out, and haven't had it since. Since it's on verizon newest July firmware, dialer codes don't work. I can't update prl or profile as the option isn't there. I've reset network. Reset phone, new sim, multiple times. Manually addedapn. (There was only prepaid and prepaid ota under apn) but still no go. I had calls and texts (except mms) so I assume it's unlocked. (I was beginning to second guess lol) would flashing sprint firmware solve the issue? Or at least help? I apologize if this isn't the proper place. But after talking with agents and reps and "tech" help I'm thinking this might have cost me. Lol
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
I would try flashing the G988U1 ATFB for SPR it has the July security patch and see if that helps??
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Post a picture or screenshot of the error please

Sprint firmware probably won't do anything for you at this point, since it's all being converted to T-Mobile nyway. I'd recommend U1 firmware
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] tyrone1:
Try downloading g988U1 with frija or samfirm tool. There must be a crc error in the file on the Samsung server. Downloaded at least 10 times and always crc error. If I turn off crc check file would error unzipping.

I ended up downloading the one you hosted on the first page and was able to software update from within the phone. Thanks.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Have no idea what you're talking about. It's working perfectly fine for me - see attachment
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
Trying again
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] tyrone1:
Maybe they fixed it, but can't see your attachment...

I already just flashed the version in the first post and updated within the phone.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
No i don't think they've fixed whatever the issue is with their attachment system. Previous posts with attachments are showing the same error.

But anyways, the picture was a screenshot of SamFirm downloading the latest version - it worked fine for me with no issues at all
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
You updated to ATFG from OTA?

Frija works for me flawless...

Edit: my bad you said U1. I still have no issue downloading with frija. Are you sure you're entering the correct CRC?? [MENTION=3632941]tyrone1[/MENTION]
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] tyrone1:
Yes U1. And did you mean CSC? I always put xaa CSC when doing U1 firmware on frija.

Like I said above to I was able to download sm-g988u CSC Tmb no problem but sm-g988u1 csc xaa always gave crc errors.
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] JDBarlow:
Yes CSC :p

If you use TMB on U why not use TMB on U1?
[Samsung Galaxy S20 / S20+ / S20 Ultra Guides, News] iBowToAndroid:
You're doing something wrong then. For me, both SamFirm and Frija find the firmware just fine, and the download also starts with no errors