I'd like to start off by apologizing if there's a thread that has answered this. I've spent nearly a week trying to find my answer because, I'm one of those that doesn't like duplicate post to begin with or those who don't google however, I can't find my definite answer and I just want to reassure before going and spending money.
Scenario: I recently have been given an AT&T Galaxy S9 and I'm mad in love with it (using an iPhone X at the moment lol) and I need it to work on Verizon. Of course my first step will be unlocking the device to be able to be used on different networks and I do by putting in the code that I received and it does unlock it. I proceed to put my sim card in it and I notice I can't seem to get service to work. I noticed giving my Note 8 Verizon to my friend who has AT&T, he could put his sim card in and it'll restart with all AT&T functions including the boot logo and all. My S9 AT&T rejects it still. I did try and tinker with the dial codes (*#*#4636#*#*) and setting my bands to LTE/CDMA. Doing this allowed me to receive 4G LTE on the device but, no cellular service. With that being said, I've read on threads that firmwares from certain manufacturers disable bands so I assume AT&T has those disabled that work for Verizon. My next step was trying to get a verizon firmware to work on it. I downloaded the ARG8 U firmware from verizon for it and it still boots AT&T firmware regardless. My last thought would be waiting for the updated V3 U1 Firmware for the S9 and maybe that'll fix it? I just need some opinions on this matter because, if I can't get this to work then I'm going to proceed on buying a new one unlocked.
Thank you guys in advanced and again, if there's already answers for this then I apologize. I've worked with android since the HTC Hero days and I still get stumped on some things haha.
megaghostgamer said:
Thank you guys in advanced and again, if there's already answers for this then I apologize. I've worked with android since the HTC Hero days and I still get stumped on some things haha.
Click to expand...
Click to collapse
Yes.. wait till XAA-U1 is available or an ATT firmware with userdata file inside which has all ATT related files.
nimms said:
Yes.. wait till XAA-U1 is available or an ATT firmware with userdata file inside which has all ATT related files.
Click to expand...
Click to collapse
When you say ATT firmware do you mean Verizon? I'm trying to convert from ATT to Verizon which I've tried a firmware with Verizon's userdata inside and all it did was double my bloatware lol. Had ATT and Verizon BS. As far as the XAA-U1, I understand then.
megaghostgamer said:
When you say ATT firmware do you mean Verizon? I'm trying to convert from ATT to Verizon which I've tried a firmware with Verizon's userdata inside and all it did was double my bloatware lol. Had ATT and Verizon BS. As far as the XAA-U1, I understand then.
Click to expand...
Click to collapse
Yeah, I misread..
try VZW version
https://updato.com/firmware-archive-select-model?record=12EDD7F878D311E89F15FA163EE8F90B
Or VZW U1
https://updato.com/firmware-archive-select-model?record=E2DA06D078D411E89F15FA163EE8F90B
For proper functionality, make sure there's a "userdata" file when you unzip.
Also, use CSC file which wipes the phone, not home csc file which keeps data intact.
If things don't work.. keep sim inside and do a factory reset with sim. it'll ensure proper CSC selection.
nimms said:
Yeah, I misread..
try VZW version
https://updato.com/firmware-archive-select-model?record=12EDD7F878D311E89F15FA163EE8F90B
Or VZW U1
https://updato.com/firmware-archive-select-model?record=E2DA06D078D411E89F15FA163EE8F90B
For proper functionality, make sure there's a "userdata" file when you unzip.
Also, use CSC file which wipes the phone, not home csc file which keeps data intact.
If things don't work.. keep sim inside and do a factory reset with sim. it'll ensure proper CSC selection.
Click to expand...
Click to collapse
See the issue is those links you posted are meant for the V2 bootloader. G960UOYN(2)ARF4 . I've actually tried the U1 and all from V2 but, it gives back that binary fail due to me being on the V3 bootloader. I'll try with the V3 bootloader files for verizon again and do the whole factor reset afterwards. Unfortunately there hasn't been a V3 U1 yet for the S9. Thank you for helping me figure this out, i'll post my results shortly.
nimms said:
Yeah, I misread..
try VZW version
https://updato.com/firmware-archive-select-model?record=12EDD7F878D311E89F15FA163EE8F90B
Or VZW U1
https://updato.com/firmware-archive-select-model?record=E2DA06D078D411E89F15FA163EE8F90B
For proper functionality, make sure there's a "userdata" file when you unzip.
Also, use CSC file which wipes the phone, not home csc file which keeps data intact.
If things don't work.. keep sim inside and do a factory reset with sim. it'll ensure proper CSC selection.
Click to expand...
Click to collapse
Updating from earlier, I tried with the Verizon U3ARG8 file and all it did was add on the bloatware from verizon. I've tried factory resetting and all and it still doesn't want to swap over. Every time it boots, it begins with the AT&T boot logo and proceeds to not give me proper service. I can mess with the LTE bands and get data working, just not service itself.
megaghostgamer said:
Updating from earlier, I tried with the Verizon U3ARG8 file and all it did was add on the bloatware from verizon. I've tried factory resetting and all and it still doesn't want to swap over. Every time it boots, it begins with the AT&T boot logo and proceeds to not give me proper service. I can mess with the LTE bands and get data working, just not service itself.
Click to expand...
Click to collapse
In S8, there's a method using Combination rom (factory binary) to do a proper carrier switch. Take a look and try. Not sure if that would work, but that's an option.
nimms said:
In S8, there's a method using Combination rom (factory binary) to do a proper carrier switch. Take a look and try. Not sure if that would work, but that's an option.
Click to expand...
Click to collapse
Just tried it, once you get in the factory binary, you're supposed to type *#243203855# in the dialer and be able to switch it there however, it's not allowing me to do so. All it does is clear what I've typed.
megaghostgamer said:
Just tried it, once you get in the factory binary, you're supposed to type *#243203855# in the dialer and be able to switch it there however, it's not allowing me to do so. All it does is clear what I've typed.
Click to expand...
Click to collapse
S8 needs flashing canadian CSC before flashing factory binary. Did you try that too?
nimms said:
S8 needs flashing canadian CSC before flashing factory binary. Did you try that too?
Click to expand...
Click to collapse
The Canadian csc is XAC right? Just trying to hunt for one. I don’t see any for the G960U. I see XAS (unknown) but, I don’t believe it’s the same thing.
megaghostgamer said:
The Canadian csc is XAC right? Just trying to hunt for one. I don’t see any for the G960U. I see XAS (unknown) but, I don’t believe it’s the same thing.
Click to expand...
Click to collapse
You must look for G960W files for Canadian csc
nimms said:
You must look for G960W files for Canadian csc
Click to expand...
Click to collapse
Got it, however, since it's the Canada one, it only allows me to change the CSC to companies from Canada. It doesn't allow me to type the code in factory binary but, it does in stock rom with the XAC CSC flashed. I tried the adb shell where you use the echo function but, I get the common problem others do "/system/bin/sh: can't create /efs/imei/mps_code.dat: Permission denied".
Seems though we are getting closer and closer, never seen something so stubborn haha. Sucks there isn't a U3 XAA yet.
megaghostgamer said:
Got it, however, since it's the Canada one, it only allows me to change the CSC to companies from Canada. It doesn't allow me to type the code in factory binary but, it does in stock rom with the XAC CSC flashed. I tried the adb shell where you use the echo function but, I get the common problem others do "/system/bin/sh: can't create /efs/imei/mps_code.dat: Permission denied".
Seems though we are getting closer and closer, never seen something so stubborn haha. Sucks there isn't a U3 XAA yet.
Click to expand...
Click to collapse
Flashing process
Factory binary,
Do reboot to bootloader via ADB,
Flash Canada "Home CSC" (not plain CSC)
Dial *#243203855# via IME button
Choose XAC, let it restart,
On adb shell, Type in
echo "VZW" > /efs/imei/mps_code.dat
(Make sure to include quotes on VZW)
If that's what you did, i think we are done here (Can't think of any other options)
Source : https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817
nimms said:
Flashing process
Factory binary,
Do reboot to bootloader via ADB,
Flash Canada "Home CSC" (not plain CSC)
Dial *#243203855# via IME button
Choose XAC, let it restart,
On adb shell, Type in
echo "VZW" > /efs/imei/mps_code.dat
(Make sure to include quotes on VZW)
If that's what you did, i think we are done here (Can't think of any other options)
Source : https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817
Click to expand...
Click to collapse
Meant to reply back but, after flashing the hell out of the phone, it somehow went into XAA CSC and I factory reset it and afterwards it allowed me to connect to Verizon. Thank you so much!
Hi,
Im also trying to convert a VZM S9 to a Canadian CSC. Do the above steps work? because after i flash the factory bin, boot into it, when i try to flash the home_csc from the canadian fw, it always fails, no matter which odin i try. also that IME code, is it only supposed to work once the canadian home_csc as been flashed? because if i try that code in the IME section of the factory bin, i get nothing!
Related
Have a very weird problem, and think it is because of any app...
I use a galaxy tab s4 lte as a phone, it is a fully functional phone oversized... it is great, and im using tablets as phone 3 or 4 years ago... first was galaxy tab s2 lte, then s3, and now s4
S2 worked great... S3 worked great but from march of this year, randomly phone disconects fron network just to receive calls.... sms, 4g and wifi always work, but canr receive calls till i make a call... it is like it disconnects from network... i notice that, because i have (from the times of s2) my phone forwarding calls to my wife's phone when my phone is turned off or im in a plane for example...
But with tab s3, from march, i was in home with my wife and someone that call me ringed directly to my wife phone... as if my phone was turned off...a lot of times saw that... but when i place a call... it start receiving calls again...
Went to tmobile, changed the sim and same problem...
Bought a new S4 lte ($1000) and from the day 1 same problem...
Any help? Im pretty sure it could be any app... but dont know where to start
Factory reset, then install your apps, one at the time until it happens again. It's long process but unless someone came across it it's the only way to find out which app causes it. Perhaps not the only way. Have you tried to replicate it? Reboot your tablet, then ring it to check if it receives it. If not, you can uninstall one app, reboot, call, uninstall , repeat until you find which app it is. It's likely quicker this way but you need to be able to replicate it.
Most likely is the VoLTE is not set up right. And sounds like fallback to 3G for voice is not happening. Try locking it on to 3G and leave it in standby. Check whether inbound calls are coming through when you are camped on 3G.
It is possible to edit your CSC file to get it working properly. but you'll need to know all the correct fields to change and will require you to root, install custom recovery etc.
I haven't thought about that. Try that first. I mean locking to 3G.
Too51oll said:
Factory reset, then install your apps, one at the time until it happens again. It's long process but unless someone came across it it's the only way to find out which app causes it. Perhaps not the only way. Have you tried to replicate it? Reboot your tablet, then ring it to check if it receives it. If not, you can uninstall one app, reboot, call, uninstall , repeat until you find which app it is. It's likely quicker this way but you need to be able to replicate it.
Click to expand...
Click to collapse
I have factory reset 3 times... same problem... when reset it works just fine... for a while....
1eStar said:
Most likely is the VoLTE is not set up right. And sounds like fallback to 3G for voice is not happening. Try locking it on to 3G and leave it in standby. Check whether inbound calls are coming through when you are camped on 3G.
It is possible to edit your CSC file to get it working properly. but you'll need to know all the correct fields to change and will require you to root, install custom recovery etc.
Click to expand...
Click to collapse
Sounds good... but would hate if this was the problem, dont want to root phone... anyway... s3 was working ok till march... one year worked great! Because of that i think it can be a setting or app... there is any way yo change volte? I have seen something like that in any menu but cant find now
Seeing about volte... i remember on s2, and on s3 im not quiete sure, the hd call icon, related to volte, bit now have not that option in phone app settings
Thanks
I don't think the tabs4 t835n makes calls over lte, only 3g as per the specs on the samsung site. Mine always reverts to 3g when making voice calls. It still sounds great but this is the way it makes or receives calls.
Continuous Talk Time (3G WCDMA) (Hours)
Up to 50
That being said, it would be great to find out if it is capable and since there is root now, take the settings from the note9 and push it to the tabs4 T835n.
Have you tried if it receives calls after reboot?
Too51oll said:
Have you tried if it receives calls after reboot?
Click to expand...
Click to collapse
yes it does... it receives calls after reboot, and after placing a call
1eStar said:
Most likely is the VoLTE is not set up right. And sounds like fallback to 3G for voice is not happening. Try locking it on to 3G and leave it in standby. Check whether inbound calls are coming through when you are camped on 3G.
It is possible to edit your CSC file to get it working properly. but you'll need to know all the correct fields to change and will require you to root, install custom recovery etc.
Click to expand...
Click to collapse
Friend... switching to 3g works great... this problem is on lte... it is possible to edit or flash csc without rooting? Would be possible to edit with s9 parameters? I mean, dont know if it has 10 lines of code or 10000! Just asking
Would like to fix it without rooting
wallyhenderson said:
Friend... switching to 3g works great... this problem is on lte... it is possible to edit or flash csc without rooting? Would be possible to edit with s9 parameters? I mean, dont know if it has 10 lines of code or 10000! Just asking
Would like to fix it without rooting
Click to expand...
Click to collapse
I'm not sure it's possible without root access. You could try extracting the correct csc file for s9 and flash it via ODIN.
If you have root access you can peruse your csc file using this app:
https://play.google.com/store/apps/details?id=ma.wanam.cscexpert
1eStar said:
I'm not sure it's possible without root access. You could try extracting the correct csc file for s9 and flash it via ODIN.
If you have root access you can peruse your csc file using this app:
https://play.google.com/store/apps/details?id=ma.wanam.cscexpert
Click to expand...
Click to collapse
Thanks for your quick reply friend... you mean i could flash s9 csc without any modification? Its safe to do that? Can i backup my actual csc just in case with odin? Thanks!
1eStar said:
I'm not sure it's possible without root access. You could try extracting the correct csc file for s9 and flash it via ODIN.
If you have root access you can peruse your csc file using this app:
https://play.google.com/store/apps/details?id=ma.wanam.cscexpert
Click to expand...
Click to collapse
that in the screenshot of the app you send me is exactly what i need to turn off i think...
wallyhenderson said:
that in the screenshot of the app you send me is exactly what i need to turn off i think...
Click to expand...
Click to collapse
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
1eStar said:
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
Click to expand...
Click to collapse
3 Great ideas!... ask your carrier seem to be the best if they cooperate... flash csc is the second best because have not to reset phone.... and flashing a complete firmware from a different country is a great idea too but have to reinstall everything...
I think this was what happened with my S3... everything worked fine till i flashed a complete firmware from a different country when oreo update came...
Friend.. you help me a lot... really appreciate your help
1eStar said:
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
Click to expand...
Click to collapse
F***... there is only one firmware for the T835N (i own a T835N)on Sammobile but 3 for T835C... will download all 4 firmwares and try to figure out if i can get the CSC file form a T835C...
PD: Do you know what is the difference between T835N and T835C?
Thanks again friend
1eStar said:
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
Click to expand...
Click to collapse
One question... do i need to root before flashing CSC? or can flash it just as a complete firmware just using CSC slot?
Thanks
1eStar said:
Maybe you can ask your carrier to disable VoLTE for your account?
You will be trying at your own risk when you try to flash alternate CSC, remember you can always flash back to original.
You could also try flashing a complete firmware from a different country, check firmware available on Sammobile, search by your model code. TAB s4
Click to expand...
Click to collapse
Its me again friend... sorry for bothering you so much!
Look... here is the think...
I have downloaded two full firmwares...
the T835NKOU1ARGH_T835NKOO1ARGH_KOO for the T835N (the only firmware sammobile has for T835N)
the T835CZHU1ARH3_T835CTGY1ARH3_TGY.zip for the T835C (the latest firmware sammobile has for T835N)
When i extracted the CSC from that two firmwares i saw they are differents sizes! T835C is more than double than T835N...
Look at the picture attached...
T835N CSC File
CSC_OMC_KOO_T835NKOO1ARGH_CL13953229_QB19044239_REV00_user_low_ship_MULTI_CERT.tar.md5
47MB
T835C CSC File
CSC_OMC_TGY_T835CTGY1ARH3_CL14074605_QB19357398_REV00_user_low_ship_MULTI_CERT.tar.md5
112MB
What do you think about this? would be safe to flash a file, from other device with double the size...
It is the only thing i can do (talking about flashing other CSC) because on Sammobile there is only one complete firmware for the T835N... is not like other phones that you can choose country... the only country is korea
Thanks in advance....
wallyhenderson said:
One question... do i need to root before flashing CSC? or can flash it just as a complete firmware just using CSC slot?
Thanks
Click to expand...
Click to collapse
I believe if you flash only the HOME_CSC it will preserve your data.
You don't need root
First up though, I would strongly recommend you try to back up your data using Samsung Smartswitch (back up to SD card). And try to back up to Samsung Cloud (not sure if this still is a thing). So you can restore when things go pear shaped
I believe the chances of getting VoLTE working faultlessly on your Korean tab are pretty close to 0. But if that's what you want, I would first try flashing a known working CSC from a device with same android version on YOUR carrier (Note 9 maybe?). This is unlikely to work, I think Samsung has been encrypting CSC files recently. You may need to flash Korean firmware at this point.
Secondly, I'd try flashing an alternate csc_home package from another country. Try the one you've downloaded. If you search T835 on sammobile there are many countries listed. I'd try XSA Australia if the first one doesn't do what you want.
You're on your own my friend.
If all this is getting too hard, just leave your tab locked to 3g in it's current state.
1eStar said:
I believe the chances of getting VoLTE working faultlessly on your Korean tab are pretty close to 0.
Click to expand...
Click to collapse
I dont want to getting work VoLTE... i want to switch off buttt... not setting phone in 3G... setting it in 3G implies i will not be able to make good whatsapp video calls... skype calls... stream tv... ando... or at least nos to foas as stayong in LTE but with VoLTE turned off
1eStar said:
But if that's what you want, I would first try flashing a known working CSC from a device with same android version on YOUR carrier (Note 9 maybe?). This is unlikely to work, I think Samsung has been encrypting CSC files recently. You may need to flash Korean firmware at this point.
Click to expand...
Click to collapse
You mean that a Note 9 CSC should work? I mean is better for you i try a Note9 CSC than a T835C one?
1eStar said:
If you search T835 on sammobile there are many countries listed. I'd try XSA Australia if the first one doesn't do what you want.
Click to expand...
Click to collapse
Friend for the T835N (the phone i own) on Sammobile there are only 1 firmware... for th T835C there are 3... these two devices are LTE... but for the T835 you see a lot... but they are only wifi... do you say a wifi device from XSA australia will have CSC file? Im confused
1eStar said:
You're on your own my friend.
Click to expand...
Click to collapse
I know dont worry... really appreciate your help but dont worry i didnt blame you if anything goes wrong...
1eStar said:
If all this is getting too hard, just leave your tab locked to 3g in it's current state.
Click to expand...
Click to collapse
Would hate have a great 4G device stuck in 3G... in the last case will root it and edit the CSC with the app you send me but im not sure root is working ok because had not time to read the tutorial and will be a pain in the a** start from zero with more tha 200 apps... a lot of passwords and more than 70gb of data (i own the 256gb model)
Again friend thanks for your help is really helpfull
I live in an International region but was sold a Korean device, and it's stuck on E or 3G only, even if I go into Sim Settings or whatever, and select "LTE only" the cellular signal just dies entirely and I can't make or receive calls. when my friend's phone connects to H+ mine only connects to 3G. is there anyway this could be fixed without flashing firmware?
upon further googling, I found out that there is a secret service menu that lets you select bands, but I was unable to access that menu in this ****ty korean piece of **** device.
the menu should look like the attached image.
Coomer91 said:
I live in an International region but was sold a Korean device, and it's stuck on E or 3G only, even if I go into Sim Settings or whatever, and select "LTE only" the cellular signal just dies entirely and I can't make or receive calls. when my friend's phone connects to H+ mine only connects to 3G. is there anyway this could be fixed without flashing firmware?
upon further googling, I found out that there is a secret service menu that lets you select bands, but I was unable to access that menu in this ****ty korean piece of **** device.
Click to expand...
Click to collapse
the Korean model is actually pretty darn decent. What is your aversion to flashing firmware? if you use the HOME_CSC you dont really notice a change as it doesnt factory reset the device and if its the same version of android (pie, oreo etc etc) it doesnt require the device to do anything really
youdoofus said:
the Korean model is actually pretty darn decent. What is your aversion to flashing firmware? if you use the HOME_CSC you dont really notice a change as it doesnt factory reset the device and if its the same version of android (pie, oreo etc etc) it doesnt require the device to do anything really
Click to expand...
Click to collapse
because I couldn't flash an international CSC no matter what I tried, it fails constantly with PIT errors. that why I was wondering if there was any way to change the cellular bands some other way.
Coomer91 said:
because I couldn't flash an international CSC no matter what I tried, it fails constantly with PIT errors. that why I was wondering if there was any way to change the cellular bands some other way.
Click to expand...
Click to collapse
you dont need to flash the PIT, as a matter of fact, id not recommend flashing it at all if youre not having internal storage issues.
youdoofus said:
you dont need to flash the PIT, as a matter of fact, id not recommend flashing it at all if youre not having internal storage issues.
Click to expand...
Click to collapse
It doesn't matter if I flashed the PIT or not, it will fail regardless with same "secure check fail (PIT)" error. i've given up at this point.
Coomer91 said:
It doesn't matter if I flashed the PIT or not, it will fail regardless with same "secure check fail (PIT)" error. i've given up at this point.
Click to expand...
Click to collapse
secure check fail is usually due to custom firmware attempted to be flashed without unlocking your bootloader.
can you get a log of the Odin error? also there are errors that can show on the phone itself that are useful. If youve given up, i get it, but i dont believe youre stuck
youdoofus said:
secure check fail is usually due to custom firmware attempted to be flashed without unlocking your bootloader.
can you get a log of the Odin error? also there are errors that can show on the phone itself that are useful. If youve given up, i get it, but i dont believe youre stuck
Click to expand...
Click to collapse
So you're telling me that flashing a G960F firmware on a G960N device doesn't require repartitioning? Cuz a few people told me the F CSC and the N CSC have different partitions.
Coomer91 said:
So you're telling me that flashing a G960F firmware on a G960N device doesn't require repartitioning? Cuz a few people told me the F CSC and the N CSC have different partitions.
Click to expand...
Click to collapse
i never recommend re-partitioning unless strictly necessary, and in this case, id say no. Its not needed
youdoofus said:
i never recommend re-partitioning unless strictly necessary, and in this case, id say no. It's not needed
Click to expand...
Click to collapse
so you're sure that there is no difference in the partition between N and F CSCs? cuz the guy who made the SoLdierRblahblah Rom, said that the N CSC partition is smaller than the F one.
https://forum.xda-developers.com/showpost.php?p=80765449&postcount=4897
Coomer91 said:
so you're sure that there is no difference in the partition between N and F CSCs? cuz the guy who made the SoLdierRblahblah Rom, said that the N CSC partition is smaller than the F one.
https://forum.xda-developers.com/showpost.php?p=80765449&postcount=4897
Click to expand...
Click to collapse
im not saying that there isnt a difference between the partitions, but i AM saying that its irrelevant to your issue. What the dev is saying in your linked post is that the CSC that was flashed was too big for the partition it was headed for, which is odd.
Id youre dead set on flashing the N PIT, get the patched version of Odin and you should be able to flash whatever you want as it is patched to ignore errors and just do what its told without a safety net
Coomer91 said:
So you're telling me that flashing a G960F firmware on a G960N device doesn't require repartitioning? Cuz a few people told me the F CSC and the N CSC have different partitions.
Click to expand...
Click to collapse
Sorry to bump an ancient post but I have to ask, did you do it? Is it safe to flash G960F firmware on a G960N device? Will it transform the G960N into a G960F? Did you try using a patched Odin like @Youdoofus suggested? My issue is much smaller, I can't get VoLTE in LTE only mode while it works fine in autoconnecct mode. While the phone randomly switching between E/H+/LTE (crappy reception in my area) is annoying, it's definitely not worth bricking my device so please help.
Also @Youdoofus I downloaded just the CP and BL files for G960F and tried to flash them on my G960N but failed with Secure Check Failed (Bootloader) or Secure Check Failed (Radio) depending on what I flash. Will it work if I do it using the patched Odin or will it brick my phone? Finally, In download mode Secure Download is set to enabled is that bad?
I know I ask too many (stupid?)questions(it's a curse), so please bear with me and thanks in advance!
Hi all,
Just want to make sure I am doing this correctly and ask a few questions on the way. I have ordered an unlocked Note 10+ direct from Samsung because I really wanted Aura Blue (plus totally bonkers pre-BF discounts). My understanding is that, as I use T-Mobile, the radios are not going to be optimized for T-Mobile's network, leading to crappier call quality, and some features will not work.
1. Is this correct?
If so, my understanding is that I can use Odin to flash the T-Mobile firmware without rooting or unlocking the bootloader, and this will allow the phone to work as though I purchased it from T-Mobile. Assuming that I have this right so far, I need to download and install Odin, download the most recent T-Mobile firmware from here: https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/SM-N975U/TMB/
and install according to the instructions on the page for "5 Files" (https://www.sammobile.com/samsung/g...e/SM-N975U/TMB/download/N975USQS2ASJ8/299552/).
2. So far so good? Do I have this right so far?
3. Sometimes my wifi gets wonky and file downloads get corrupted. Is there a way to ensure the integrity of the file before I install it onto my phone?
4. I understand that there will be a lot of Samsung and T-Mobile Bloatware. To remove this, I just follow these instructions via ADB, is that right?
https://forum.xda-developers.com/ga...msung-galaxy-note-10-note-10-debloat-t3964027
or these: https://android.gadgethacks.com/how-to/disable-bloatware-for-free-your-galaxy-note-10-10-0207598/
5. Anything I'm missing?
Thanks in advance for the help. I haven't used these programs since my Galaxy S3 so I'm quite rusty.
The directions look pretty accurate, but there's a few other things you will need to do.
Don't use the home_csc when flashing the Tmobile firmware to the device. Also you will want to place the userdata file into the correct spot on the odin flashing tool. The userdata contains all the carrier specific stuff.
Do a factory data reset before you flash the Tmobile firmware (to remove the FRP lock). After flashing the Tmobile firmware be sure to do another factory data reset to ensure things (OTA, etc) work properly.
As for the download you could try using samfirm and having it check the CRC32. Checking the CRC will double check the file integrity. I don't have samfirm anymore on my PC because I upgraded to the Note 10+, but someone else may have a link to a download (or you can google search it to locate it.. Which is what I did to obtain the app before).
As for the bloat I just uninstalled what apps I could that I didn't need, and for the others I used an app from Google Play Store to disable them. I do suggest that you try disabling apps first and not trying to remove them. If you remove the wrong app you will undoubtedly encounter issues/problems.
scottusa2008 said:
Don't use the home_csc when flashing the Tmobile firmware to the device. Also you will want to place the userdata file into the correct spot on the odin flashing tool. The userdata contains all the carrier specific stuff.
Click to expand...
Click to collapse
Okay, so use CSC_*** rather than HOME_CSC? Will Odin tell me about how to place the userdata into the correct spot?
scottusa2008 said:
Do a factory data reset before you flash the Tmobile firmware (to remove the FRP lock). After flashing the Tmobile firmware be sure to do another factory data reset to ensure things (OTA, etc) work properly.
Click to expand...
Click to collapse
Will I still need to do the factory data reset if I basically take it out of the box, make sure it works, and then flash it? Can't hurt, I guess, I just want to be clear about my timeframe on installation.
scottusa2008 said:
As for the download you could try using samfirm and having it check the CRC32. Checking the CRC will double check the file integrity. I don't have samfirm anymore on my PC because I upgraded to the Note 10+, but someone else may have a link to a download (or you can google search it to locate it.. Which is what I did to obtain the app before).
Click to expand...
Click to collapse
That's what it was! Checking the CRC32 hash. I remember now.
scottusa2008 said:
As for the bloat I just uninstalled what apps I could that I didn't need, and for the others I used an app from Google Play Store to disable them. I do suggest that you try disabling apps first and not trying to remove them. If you remove the wrong app you will undoubtedly encounter issues/problems.
Click to expand...
Click to collapse
Gotcha. Do you recall which app you used? I guess I could just hide them in a launcher app, too, but I am particularly miffed about the fact that Facebook apparently comes pre-installed and can't be uninstalled on the unlocked N10+ (though I do not have one in my hands and obviously can't confirm myself as a result).
Thanks!
XanRules said:
Okay, so use CSC_*** rather than HOME_CSC? Will Odin tell me about how to place the userdata into the correct spot?
Click to expand...
Click to collapse
Yes use the CSC_*** and not the HOME_CSC when flashing.
For the userdata you should see it when you look at the Odin interface. Essentially as you place the 5 individual parts into each appropriate spot in Odin, you should see the 6th spot labled userdata.
XanRules said:
Will I still need to do the factory data reset if I basically take it out of the box, make sure it works, and then flash it? Can't hurt, I guess, I just want to be clear about my timeframe on installation.
Click to expand...
Click to collapse
If you just take it out of the box, turn it on and do not add a Google Account to it then you can just skip the factory data reset.
If you just take it out of the box, turn it on and add a google account to it then you will want to factory data reset it before flashing it with the carrier firmware.
XanRules said:
Gotcha. Do you recall which app you used? I guess I could just hide them in a launcher app, too, but I am particularly miffed about the fact that Facebook apparently comes pre-installed and can't be uninstalled on the unlocked N10+ (though I do not have one in my hands and obviously can't confirm myself as a result).
Click to expand...
Click to collapse
I use CCSWE App Manager for disabling apps I don't want to use. It's a paid app, but it doesn't cost that much if I recall correctly (think a few bucks... It's been a while since I bought it).
scottusa2008 said:
Yes use the CSC_*** and not the HOME_CSC when flashing.
For the userdata you should see it when you look at the Odin interface. Essentially as you place the 5 individual parts into each appropriate spot in Odin, you should see the 6th spot labled userdata.
Click to expand...
Click to collapse
Cool. And what I do with that field will be self explanatory?
scottusa2008 said:
I use CCSWE App Manager for disabling apps I don't want to use. It's a paid app, but it doesn't cost that much if I recall correctly (think a few bucks... It's been a while since I bought it).
Click to expand...
Click to collapse
Great, I see it. Thanks!
XanRules said:
Cool. And what I do with that field will be self explanatory?
Click to expand...
Click to collapse
If by "self explanatory" you mean the firmware file with the word USERDATA as part of it's name goes into the the spot on odin labled "USERDATA"... Then yes
XanRules said:
Great, I see it. Thanks!
Click to expand...
Click to collapse
No problem
@scottusa2008 Can you clarify this for me? In SM-N975U1 and SM-975U both have T mobile(TMB).
1. Can you explain why are we flash use file from U version instead of U1?
2. Do I download the latest version of the file?
3. If I want to flash back to original for return or warranty which file do I need?
I need to confirm these information so I purchase the phone tommorow
OxyEthane said:
Can you clarify this for me? In SM-N975U1 and SM-975U both have T mobile(TMB).
Click to expand...
Click to collapse
My responses in this thread pertained to the OP asking about flashing U firmware onto his/her U1 model phone. Even if "both" have it (and I used both) I only got the full functionality available from the carrier when I flashed the carrier firmware.
Otherwise I got generic one size fits all functionality with the U1 firmware... Which was fairly decent, but the U firmware was a better performer for Tmobile IMHO.
But flash what you want and see what changes. If you did research onto the subject then you should be aware of the bootloader version (explained further below).
OxyEthane said:
1. Can you explain why are we flash use file from U version instead of U1?
Click to expand...
Click to collapse
Not sure why this is still a problem to understand? It's been answered before and even on different threads/forums if you search for knowledge. Or go ahead and try it to find out... Either way here's how I understand it (and from past experience).
Unless things have drastically changed (which I have not heard have or seen) firmware for the U1 model is unbranded firmware. It's has a carrier bloat free experience, configured to obtain updates through samsung with a generic one size fits all carrier compatibility pending on what sim card is installed. Once installed the phone configures itself based on what sim card settings are present and (from poking around on my last rooted phone and from what I can remember) some configuration scripts on the phone (enabling/disabling bands and etc). This is why some features won't work and some will, but again it depends on the carrier and what the carrier requires.
Unlike the U1 firmware the U firmware is carrier specific and contains customizations/tweaks for said carrier by that carrier. The firmware also will contain changes made by the carrier and any carrier specific apps.
OxyEthane said:
2. Do I download the latest version of the file?
Click to expand...
Click to collapse
If your going to flash firmware then you flash either the U1 firmware or the U firmware. You shouldn't mix and match firmware parts.. Just pay attention to the bootloader version of the firmware. You can only flash firmware that has a bootloader version equal too or greater then that of what is currently on the phone.
OxyEthane said:
3. If I want to flash back to original for return or warranty which file do I need?
Click to expand...
Click to collapse
Only if the bootloader is equal to or greater then what is currently on the phone then yes.
OxyEthane said:
I need to confirm these information so I purchase the phone tommorow
Click to expand...
Click to collapse
Sorry I could not get back sooner but had to work to pay the bills. As a side note you can find all of your answers on the internet. None of this is special access private information, it's been covered quite extensively.
Good afternoon,
I have searched the forums about changing my CSC to TMOB, and I just have a few questions before I try it out myself.
First, I bought my Fold4 from ATT, and it has all of the ATT branded stuff. I recently switched to TMOB, and for the most part everything is working. I unlocked it with ATT, put in the TMOB SIM, and rebooted the phone. I still have the ATT start up logo, and a lot of my settings seem to be depended on having ATT carrier. Such as the setting in "Phone" app to enable video calling. It is greyed out and says "Enable ATT video calling". Also, when I have the phone try and search for an update it says I'm required to be on a network to get an update. I am on a network, but I assume it's looking for an ATT network. I'm worried now that my phone will not do any OTA updates, including security patches. I did a bunch of searching on this forum, and to me the problem seems to be because the phone still has all of the ATT software provided by the CSC. Unless I am confusing everything I read, the solution would be to change my CSC to TMOB via a tool such as SAMFW.
Before I moved forward with trying to do the CSC change via SAMFW I wanted to get the opinions of the experts here. Do you think this has the potential to fix my problem? Will doing the CSC change also factory reset my phone (I've done a back up just in case)? Will there be any complications with the phone after switching the CSC to TMOB that I'm just not aware of, and would make the switch more of an issue that just leaving it as is?
Things I've done outside of changing the CSC include network reset, factory reset, verifying with ATT that the phone actually is unlocked, and verifying with TMOB that everything looks correct on their end.
Any help would be greatly appreciated.
Very respectfully,
Pringlend
Yes changing csc will get rid of att bloat and boot I don't think I've done any t-mobile but I've done the unlocked version csc and I'm back on the GFC csc and don't have att boot, hope this helps if you have any questions feel free to reach out
Here is how I got around this very same problem myself. Congradulations on dumnping Toxic-T!
https://forum.xda-developers.com/t/change-csc-from-att-to-tmob-in-the-us.4515089/
shorty9210 said:
Yes changing csc will get rid of att bloat and boot I don't think I've done any t-mobile but I've done the unlocked version csc and I'm back on the GFC csc and don't have att boot, hope this helps if you have any questions feel free to reach out
Click to expand...
Click to collapse
Thank you. I just wanted to cover all my bases before I dove in on this. I'm a hardware tech not a software tech lol
Flame Red said:
Here is how I got around this very same problem myself. Congradulations on dumnping Toxic-T!
https://forum.xda-developers.com/t/change-csc-from-att-to-tmob-in-the-us.4515089/
Click to expand...
Click to collapse
Thank you. I read through your post previously, and I gave it another read just now. Did your phone factory reset after or did it just reboot to the new stuff?
Pringlend said:
Thank you. I read through your post previously, and I gave it another read just now. Did your phone factory reset after or did it just reboot to the new stuff?
Click to expand...
Click to collapse
It rebooted with the TMOB boot screen without factory reset for me.
It seemed to remove the T bloatware, and installed the TMOB bloatware though.
For anyone who is curious, or wanted a follow up;
I successfully changed my CSC to TMB with the help of @Flame Red and @shorty9210 . I did have a few complications along the way. I kept getting "unhandled exception" errors. I had to start the SAMFW application over and over in administrator mode for it to eventually take. Once it did though it was fast and simple. Thanks again for everyone's support!
Very respectfully,
Pringlend
I live in Canada. I purchased an S20 Ultra off a seller on Canadian best buy (open box). I assumed it'd be a Canadian variant, but it was an unlocked US version (U1 firmware). OK whatever, but it meant my Samsung Pay doesn't work, along with a few other calling features.
I downloaded the patched Odin, downloaded the G988W firmware (with XAC CSC) with Frija, added the appropriate files to Odin (used Home CSC), and flashed it. The flashing itself went fine, but when I went to re-insert my SIM...nothing. It didn't even error out and say "No SIM Detected", I just had no coverage, and in SIM manager, both slots were empty.
Freaked out, and eventually flashed back to G988U1/XAA and thank Christ it works now. But my question is...why?
I dug though this forum before doing it to try and anticipate any issues. Followed the instructions to the letter, nowhere said this would be an issue. Couldn't even find any relevant support questions for this issue on this model. Not sure if it's a new development, but I absolutely don't want to risk messing my phone up further if I reattempt.
Bonus question: My CSC info is: XAA/XAA,XAA/SPR. Does that mean that it was originally a Sprint model phone, someone's flashed the firmware to an unbranded version, then sold it off as New (Open Box)?
You can't just flash a firmware from a different phone. The hardware is different, so the way to communicate with it is different. You're lucky it even booted, I wouldn't have expected that even. You're simply stuck with the original firmware and CSC list. Or, maybe you could try with custom ROMS but I wouldn't be so sure about it. Either way, you'll have to use a ROM/firmware that is built for your phone (G988U1).
Mwyann said:
You can't just flash a firmware from a different phone. The hardware is different, so the way to communicate with it is different. You're lucky it even booted, I wouldn't have expected that even. You're simply stuck with the original firmware and CSC list. Or, maybe you could try with custom ROMS but I wouldn't be so sure about it. Either way, you'll have to use a ROM/firmware that is built for your phone (G988U1).
Click to expand...
Click to collapse
Huh I thought the actual hardware between U1 and W was the same? They're both Snapdragons. Besides I've seen other posts of people doing the same (tbh, they were going from W to U1, but still)
Mwyann said:
You can't just flash a firmware from a different phone.
Click to expand...
Click to collapse
Oh but you CAN.
U, U1, and W have all been cross-flashable ever since Samsung first introduced universal hardware, starting with the S8
Jetrel1 said:
Bonus question: My CSC info is: XAA/XAA,XAA/SPR. Does that mean that it was originally a Sprint model phone, someone's flashed the firmware to an unbranded version, then sold it off as New (Open Box)?
Click to expand...
Click to collapse
Probably. Very common for online sellers to do.
The key probably lies in what the CSC shows as after flashing W firmware. If it stays as XAA, changing the CSC manually to a Canadian one could possibly make it work
iBowToAndroid said:
Oh but you CAN.
U, U1, and W have all been cross-flashable ever since Samsung first introduced universal hardware, starting with the S8
Click to expand...
Click to collapse
I thought so too, lol
Any thoughts on why my flash caused the SIM issue? Did I maybe just install the wrong version? I don't think I did, I used Frija
Some further research led me to the subject of accidentally mucking up the modem firmware which I might have done
Jetrel1 said:
I thought so too, lol
Any thoughts on why my flash caused the SIM issue? Did I maybe just install the wrong version? I don't think I did, I used Frija
Some further research led me to the subject of accidentally mucking up the modem firmware which I might have done
Click to expand...
Click to collapse
See my other post above
iBowToAndroid said:
See my other post above
Click to expand...
Click to collapse
My bad I didn't even compute. Thanks!
Jetrel1 said:
I live in Canada. I purchased an S20 Ultra off a seller on Canadian best buy (open box). I assumed it'd be a Canadian variant, but it was an unlocked US version (U1 firmware). OK whatever, but it meant my Samsung Pay doesn't work, along with a few other calling features.
I downloaded the patched Odin, downloaded the G988W firmware (with XAC CSC) with Frija, added the appropriate files to Odin (used Home CSC), and flashed it. The flashing itself went fine, but when I went to re-insert my SIM...nothing. It didn't even error out and say "No SIM Detected", I just had no coverage, and in SIM manager, both slots were empty.
Freaked out, and eventually flashed back to G988U1/XAA and thank Christ it works now. But my question is...why?
I dug though this forum before doing it to try and anticipate any issues. Followed the instructions to the letter, nowhere said this would be an issue. Couldn't even find any relevant support questions for this issue on this model. Not sure if it's a new development, but I absolutely don't want to risk messing my phone up further if I reattempt.
Bonus question: My CSC info is: XAA/XAA,XAA/SPR. Does that mean that it was originally a Sprint model phone, someone's flashed the firmware to an unbranded version, then sold it off as New (Open Box)?
Click to expand...
Click to collapse
I Just did exactly the same and got a tmobile variant but want the W preferably the samsung factory rom not a carrier one. Which guide did you follow? I found this for the 21 Ultra and expect the steps to be similar https://forum.xda-developers.com/t/...-samsung-unlocked-bloatfree-firmware.4224423/
What calling features don't work in Canada? I have a W variant, live in Canada, and want an U1 to get esim working. I am also looking for a guide to follow to flash my phone.
funrunner said:
What calling features don't work in Canada? I have a W variant, live in Canada, and want an U1 to get esim working. I am also looking for a guide to follow to flash my phone.
Click to expand...
Click to collapse
Samsung Pay doesn't work - that's a big one for me, it's a pain in the **** losing that. Will only accept US ZIP codes when setting up.
Caller ID doesn't work
That extra info you get when texting (like seen/read stuff) doesn't work in the native Samsung text app, you have to use google messages (yeah, no)
I'm sure there's other stuff but those are the main ones