I recently updated to Oreo 8.1 a couple of days ago and everything works fine, but the one exception. I can not get cellular data, but i can make calls and send text messages.
Things i have done trying to troubleshoot to no resolve:
I got a new sim card from AT&T, I have also checked APN settings (checked out okay), I have factory reset the phone.
I gratefully appreciate any help and thanks in advance.
Current Software:
Android Version 8.1.0
Security Patch level: February 8, 2018
NON Root phone.
You have 2 choises. You can A: send the phone to razer or B: flash factory images after unlocming the bootloader then relocking the bootloader after done flashing.
iliais347 said:
You have 2 choises. You can A: send the phone to razer or B: flash factory images after unlocming the bootloader then relocking the bootloader after done flashing.
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Thank you for the reply. I tried option 2 to no avail as now I'm on to option 1.
I am having a similar issue. After updating to 8.1 I am unable to receive cell service as well. Can not call, text, or use mobile data..
In my case I am unable to edit the APN settings as it will not save for whatever reason.
On At&t as well.
Have you tried other carrier gsm cards?
Im have 8.1 using it with telcel in Mexico with 0 issuese even when I go to the US i get Data
I was speaking to @threeuKSupport on twitter yesterday and they are saying that theres some issues with the build that Razer sent out but couldnt say what the issues where so maybe mobile data connections where one of them.
I have a factory unlocked Note10+. XAA/XAA/ATT. I'm trying to install RoboKiller for the Call Screening, but the forwarding code fails. I get a "connection problem or mmi failure. I'm on post paid not prepaid.
I'm guessing ATT has this blocked because I'm using the U1 firmware and / or because it's not a branded phone. I saw a while back someone had luck running U1 by flashing one file from the U. I think it was either Userdata or CSC file? Anyone have any suggestions?
I really don't want to switch to U. Getting timely updates is one of the big reasons for running U1. I don't want to wait until the end of the month or manually flash every month.
todd3835 said:
I have a factory unlocked Note10+. XAA/XAA/ATT. I'm trying to install RoboKiller for the Call Screening, but the forwarding code fails. I get a "connection problem or mmi failure. I'm on post paid not prepaid.
I'm guessing ATT has this blocked because I'm using the U1 firmware and / or because it's not a branded phone. I saw a while back someone had luck running U1 by flashing one file from the U. I think it was either Userdata or CSC file? Anyone have any suggestions?
I really don't want to switch to U. Getting timely updates is one of the big reasons for running U1. I don't want to wait until the end of the month or manually flash every month.
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Click to collapse
Did you call AT&T and have them make the adjustments for conditional call forwarding? They should be able to do this for you.
AT&T uses an IMEI whitelist to only provision full service functionality to phones they sell. If call forwarding settings requires you to have an AT&T branded phone (I can't see where it should). So even if you flashed the file it may not have any effect.
More then likely (high probability) it is the userdata file you would want to flash.
https://forum.xda-developers.com/ga...ware-links-t3957648/post82832231#post82832231
scottusa2008 said:
Did you call AT&T and have them make the adjustments for conditional call forwarding? They should be able to do this for you.
AT&T uses an IMEI whitelist to only provision full service functionality to phones they sell. If call forwarding settings requires you to have an AT&T branded phone (I can't see where it should). So even if you flashed the file it may not have any effect.
More then likely (high probability) it is the userdata file you would want to flash.
https://forum.xda-developers.com/ga...ware-links-t3957648/post82832231#post82832231
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Click to collapse
This person flashed to U. I want to avoid doing that. I'd prefer to stay on U1 for the faster updates.
Within regards to flashing the one file on U1 firmware question pretty sure userdata is still what you would flash.
So I was thinking of flashing my Galaxy S20+ with the unlocked firmware. However I'm concerned that doing so will wipe out the ESim for my Galaxy watch 3. Does anyone know if the ESim data is stored on the watch or the phone and/or if reflashing the phone (or factory resetting it for that matter) would wipe it out?
It was quite a painful process getting AT&T to add the watch to my account. I had to add an additional line and then call back to cancel the old watch. I don't relish having to call them back again because I accidentally wiped out the ESim.
Thanks, and yes I know this is probably a stupid newbie question.
jmdomini said:
So I was thinking of flashing my Galaxy S20+ with the unlocked firmware. However I'm concerned that doing so will wipe out the ESim for my Galaxy watch 3. Does anyone know if the ESim data is stored on the watch or the phone and/or if reflashing the phone (or factory resetting it for that matter) would wipe it out?
It was quite a painful process getting AT&T to add the watch to my account. I had to add an additional line and then call back to cancel the old watch. I don't relish having to call them back again because I accidentally wiped out the ESim.
Thanks, and yes I know this is probably a stupid newbie question.
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Click to collapse
I got my N20U & GW3 together, phone was running carrier locked firmware, I switched CSCs to unlocked BTU CSC using samkey, and got an update OTA for the BTU firmware, so now N20U is running BTU and Galaxy Watch 3 still works as it should / was prior to changing CSCs
The watch has it's own modem, can make calls without the phone, has it's own number, it only relies on the phone for syncing media and data from apps, it doesn't 'need' the phone to function as a phone
I've purchased a Verizon unlocked Galaxy s21 FE and am trying to use it on Mint Mobile. It connects for about 5 minutes but then 5G and reception go to 0 and a message saying "sorry, your device can't be activated on another carrier's network right now. For help, contact Verizon." pops up. I believe I could solve the issue by changing the CSC region code but don't want to trip KNOX. These are things I tried:
Phone Dialer */# commands did not work to change CSC or even show IMEI. Might be Verizon locked or Android 12 locked.
Flashing XAA region firmware did not help the issue even though it cleared all verizon bloatware and splash screen.
Flashing another carrier's (Tmobile) firmware and accidentally updated my bootloader to Binary 3 .
I believe that a potential fix is to flash android 11 from Verizon and maybe the phone dialer commands will work to change CSC.
Anyway, this has been a real headache and I just want to use my phone like normal on my selected carrier. Be careful with phones that have VZW region codes!!!
EDIT: I have the SM-G990U Snapdragon US model of the Galaxy S21 FE. Android 12 and 4.1 UI.
EDIT 2: The OEM Unlock Option does not exist on my phone even after becoming a developer.
You ever able to get this working?
I bought a Canadian variant Samsung Galaxy S20 (Snapdragon) yesterday, and knew that the SIM reader slot was faulty and needed to be replaced. I had assumed that I could just use eSIM, but didn't realize that the Canadian variants have it blocked.
Any advice on how to enable it? Can I maybe flash international firmware onto it to have the SIM card manager and enabling of eSIM, and if so, which one and how? Using Odin? Or a modified Odin? Do I need a working SIM reader?
Or maybe I change the CSC? If so, any instructions on how to do it with my variant?
Or do I need to root? If so, any instructions on how to unlock the bootloader (I don't have the OEM unlock option in Developer Options) if I am on One UI version 4.1? Or do I need to downgrade? If so, how do I downgrade?
I really don't want to have to tear this phone apart and resolder on a new SIM reader slot. It's a really great phone and the nicest one I've owned.
I'm not sure where to start.
threehappypenguins said:
I bought a Canadian variant Samsung Galaxy S20 (Snapdragon) yesterday, and knew that the SIM reader slot was faulty and needed to be replaced. I had assumed that I could just use eSIM, but didn't realize that the Canadian variants have it blocked.
Any advice on how to enable it? Can I maybe flash international firmware onto it to have the SIM card manager and enabling of eSIM, and if so, which one and how? Using Odin? Or a modified Odin? Do I need a working SIM reader?
Or maybe I change the CSC? If so, any instructions on how to do it with my variant?
Or do I need to root? If so, any instructions on how to unlock the bootloader (I don't have the OEM unlock option in Developer Options) if I am on One UI version 4.1? Or do I need to downgrade? If so, how do I downgrade?
I really don't want to have to tear this phone apart and resolder on a new SIM reader slot. It's a really great phone and the nicest one I've owned.
I'm not sure where to start.
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Click to collapse
I'm in the same boat as you are! Did you manage to get e-sim to work?
Anyone have any luck with this?
I would like to help. You can flash a SM-G981U1 XAA with odin to unlock it. if you need nr sa , contact me to get it in free
Littlenine said:
I would like to help. You can flash a SM-G981U1 XAA with odin to unlock it. if you need nr sa , contact me to get it in free
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Click to collapse
SM-G981U1 XAA seems to be still on Android 12. I'll wait until 13 is ready before I attempt. What is "nr sa"? Thanks.
recordman said:
SM-G981U1 XAA seems to be still on Android 12. I'll wait until 13 is ready before I attempt. What is "nr sa"? Thanks.
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NR SA is 5g. i can make your phone enable esim and the same time support oneui5.0 + OTA + 5g SA
Littlenine said:
NR SA is 5g. i can make your phone enable esim and the same time support oneui5.0 + OTA + 5g SA
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Is this information available in the public, or only select people like yourself have the secret sauce?
recordman said:
Is this information available in the public, or only select people like yourself have the secret sauce?
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Click to collapse
actually i write a passage to show how to do this and send it in a chinese community called coolapk
@Littlenine can you share how? I had to revert to u1 firmware for esim which does not support android 13 / ui5
kmare said:
@Littlenine can you share how? I had to revert to u1 firmware for esim which does not support android 13 / ui5
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i will
I read that if the W model is flashed with the U1 firmware, Samsung Pay can no longer have Canadian credit cards added. Can someone verify? OneUI 5.1 is being tested on the S20. We can only hope Samsung enables eSIM for that release.
W model has 13 release now. Does it still not support esim?
I was on the U1 model Android 12 in Dec 2022 (With esim enabled) and updated to the W model Android 13 firmware figuring it should have esim enabled however it did not.
I used odin to switch to the Android 13 U1 firmware but it did not enable esim (I used the home_csc). I flashed the older U1 Android 12 firmware which did enable esim again but I had to factory reset the phone due to a boot loop.
After reseting and doing an OTA update to Android 13 the esim stayed enabled and I restored a backup using smart switch for my apps and settings.
maydax said:
I was on the U1 model Android 12 in Dec 2022 (With esim enabled) and updated to the W model Android 13 firmware figuring it should have esim enabled however it did not.
I used odin to switch to the Android 13 U1 firmware but it did not enable esim (I used the home_csc). I flashed the older U1 Android 12 firmware which did enable esim again but I had to factory reset the phone due to a boot loop.
After reseting and doing an OTA update to Android 13 the esim stayed enabled and I restored a backup using smart switch for my apps and settings.
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Click to collapse
So in summary, to get eSIM in A13 U1, first odin install A12 U1, and then OTA to A13? The A13 U1 was uploaded yesterday ( link ).
recordman said:
So in summary, to get eSIM in A13 U1, first odin install A12 U1, and then OTA to A13? The A13 U1 was uploaded yesterday ( link ).
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It may work if you use csc instead of home_csc which would reset the phone straight out. I used home_csc which kept my Canadian firmware settings and likely csc
maydax said:
It may work if you use csc instead of home_csc which would reset the phone straight out. I used home_csc which kept my Canadian firmware settings and likely csc
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Does Samsung Pay work with Canadian credit cards in your A13 U1? That's the only requirement holding me back from converting. Samsung Pay+Google Wallet cover 90% of the places I regularly shop at.
recordman said:
Does Samsung Pay work with Canadian credit cards in your A13 U1? That's the only requirement holding me back from converting. Samsung Pay+Google Wallet cover 90% of the places I regularly shop at.
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I only use google wallet so I never tried samsung pay before. I installed samsung wallet and seems it wants a us zip code.
Ok guys so i bought Samsung Galaxy S22+ in Korea. I am from Europe. Reason why i bought phone in Korea was it was like 20% cheaper then in EU + it have Snapdragon instead Exynos.
But as i came back home i was in for a suprise, coz i tried to set up dual sim for the phone, but then i realized i cant do it. SIM card tray where u put physical SIM cards have only 1 SLOT, 2nd slot that was supposed to be on the back side is slighty modified so SIM card cant fit in, also there is no writing SIM2 like its written on fron (SIM1).
Also phone doesnt have support for eSIM, i cant open SIM manager or anything related to SIM cards in settings of my phone.
Dual SIM is important for me coz i use 1 SIM for SMS and phonecalls, its my number, and 2nd SIM is for internet. We are able to buy internet SIM here that have 60GB of data per month and its super cheap, like 7 EURO, so running dual SIM is super cheap version. If i buy internet via my regular phone providers where i can use phonecalls and SMS combined, it cost like 3x more.
SO yeah, i mean i could go for more expensive version and just have 1 SIM but its stupid coz 1 of reasons was i bought that phone is to run it DUAL SIM, i have also my old Huawei P30 pro working just fine, and now i feel dumb for buying another new phone that was meant to replace my old and its not working 100% correctly...
Can i modify my phone to make it work? Install EU version of Android or something? I would rly like to make it work, although even if i make it work i am not sure if my Internet/Phone service provider support eSIM so i swap this main physical sim with eSIM and then use internet one as physical. But ill deal with this later. I just wanna try enable eSIM first if its possible and have dual sim support in my settings.
Any help is very appreciated!
Best regards!
bjBlazkowicz said:
Ok guys so i bought Samsung Galaxy S22+ in Korea. I am from Europe. Reason why i bought phone in Korea was it was like 20% cheaper then in EU + it have Snapdragon instead Exynos.
But as i came back home i was in for a suprise, coz i tried to set up dual sim for the phone, but then i realized i cant do it. SIM card tray where u put physical SIM cards have only 1 SLOT, 2nd slot that was supposed to be on the back side is slighty modified so SIM card cant fit in, also there is no writing SIM2 like its written on fron (SIM1).
Also phone doesnt have support for eSIM, i cant open SIM manager or anything related to SIM cards in settings of my phone.
Dual SIM is important for me coz i use 1 SIM for SMS and phonecalls, its my number, and 2nd SIM is for internet. We are able to buy internet SIM here that have 60GB of data per month and its super cheap, like 7 EURO, so running dual SIM is super cheap version. If i buy internet via my regular phone providers where i can use phonecalls and SMS combined, it cost like 3x more.
SO yeah, i mean i could go for more expensive version and just have 1 SIM but its stupid coz 1 of reasons was i bought that phone is to run it DUAL SIM, i have also my old Huawei P30 pro working just fine, and now i feel dumb for buying another new phone that was meant to replace my old and its not working 100% correctly...
Can i modify my phone to make it work? Install EU version of Android or something? I would rly like to make it work, although even if i make it work i am not sure if my Internet/Phone service provider support eSIM so i swap this main physical sim with eSIM and then use internet one as physical. But ill deal with this later. I just wanna try enable eSIM first if its possible and have dual sim support in my settings.
Any help is very appreciated!
Best regards!
Click to expand...
Click to collapse
Actuall you can't In china we have all kinds of versions of samsung phone ,which korean version only has singal sim,dual physical sim only supportes on China and european while physical +esim supported on US and canada
maydax said:
I only use google wallet so I never tried samsung pay before. I installed samsung wallet and seems it wants a us zip code.
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Someone tried to add Canadian CC to a USA model of an S21 and it worked with a trick. Check here