[Q] Us Cellular SM-G900R4 unlocking hell - Galaxy S 5 Q&A, Help & Troubleshooting

So i got this phone from ebay, seller advertised it had a unlocking code from us cellular they got from samsung directly, the code she sent me is 126097, im trying to use it with Telcel in Mexico City, i received the phone, put my sim but nothing prompted for me to insert any codes, i seen countless tutorials and in all phones a prompt comes to insert the code, but not in this case, all i get is an invalid sim message, so my question is where do i put the code? or is there a way to maybe install a rom from another company in the us and try to unlock that one? does it even work like that?

Bumping to see if theres anyone that can shine some light.

bump

Sorry for all the duplicated posts but im trying hard to see if this model can be unlocked, after much search i found something exist for this model, BST Dongle 3.19.06 version has added a "SM-G900R4 Unlock/(Super)IMEI/EFS/*HW" to it so it should work for this phone, sadly this requires a purchase from most likely china, still looking for a more friendly option.

Just to update BST Dongle has failed to unlock this phone, that if im doing this right which i should, seems simple enough, here is the program dump:
Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900R4
Hardware: QCOM
Mode: normal
-----------------------------------------------------
Download: Press Vol Dn + Home + Power
UART Cable Resistor: 523 K
ReadCodes/Unlock/Repair:
1. Type *#0808# and set USB to AP.
2. Set "USB Settings" to "DM+MODEM+ADB".
3. Click "OK".
Cables: MicroUSB
Interface: Auto, Change UART when request
Read Info/Flashing/UserLock/Backup:
Cables: MicroUSB
Interface: Auto
Device Authentication ...
Unlocking device ... ok
All lock written to '00000000'
Reboot device to NORMAL mode ...
Re-scan device before any operation please
Time used : 26.7 s
Scanning devices ... 0 found
Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900R4
Hardware: QCOM
Mode: normal
Device Authentication ...
Master Lock: Encrypted
Network Lock: Encrypted
Sub Lock: Encrypted
SP Lock: Encrypted
CP Lock: Encrypted
SIM Lock: Encrypted

You made any progress with BST?

about this
mcxar said:
So i got this phone from ebay, seller advertised it had a unlocking code from us cellular they got from samsung directly, the code she sent me is 126097, im trying to use it with Telcel in Mexico City, i received the phone, put my sim but nothing prompted for me to insert any codes, i seen countless tutorials and in all phones a prompt comes to insert the code, but not in this case, all i get is an invalid sim message, so my question is where do i put the code? or is there a way to maybe install a rom from another company in the us and try to unlock that one? does it even work like that?
Click to expand...
Click to collapse
this device is just CDMa baseband
any gsm carrier works

Yeah
---------- Post added at 06:04 AM ---------- Previous post was at 05:58 AM ----------
Smgrootx69da said:
Yeah
Click to expand...
Click to collapse
I have 3 of these motherboards there isn't any gsm or global options in the settings. On the boost mobile phones it's the same, I guess you can flash them with a sprint rom to gsm unlock. That's what these would need if there is a compatible one.

Related

[Q] unlocking my samsung galaxy note3 N900R4

I recieved an unlock code from us cellular but they did not tell me how to enter it in the phone is there anyone that can give me the steps to unlock my phone.
jssims09 said:
I recieved an unlock code from us cellular but they did not tell me how to enter it in the phone is there anyone that can give me the steps to unlock my phone.
Click to expand...
Click to collapse
I'll copy and paste the instructions that my cellphone unlocker service gave me. The should be the same for all Note 3s.
---------- Instructions ----------
Read This First
* With the provided Unlock codes, if you are receiving "Code Error" or "Sim Network Unlock Unsuccessful, DO NOT WORRY! proceed to the "Trouble Shooting" section on how to proceed.
* Make sure "Airplane Mode" and "Wi-Fi" is turned off under wireless connections if your Samsung is an Android device.
There are Multiple Unlock Codes provided, which one do I use?
If you only received 1 Unlock Code, Don't worry about this part, use the code provided above.
* Unlock Code is the Network=xxxxxxxx is the Unlock Code as shown below:
Example:
NETWORK=xxxxxxxx; PROVIDER=xxxxxxxx; SUBPROVIDER=xxxxxxxx; DEFREEZE=xxxxxxxx
* You can ignore the rest of the codes, unless you are receiving a "Phone Freeze" message when trying to input the Unlock Code.
---------- Code Input Instructions ----------
How to Enter Unlock Code
Method #1
Insert a Non accepted simcard in your phone and power on. Once finished loading your phone will ask you to enter a code, enter the Unlock Code
Note: Non Accepted Simcard is any simcard not from the original provider

Galaxy S5 unlock unsuccessful bug

I received my unlock from my provider. After turning on phone with unspported sim i got a message to enter unlock code. I entered it and it says : network unlock unsucessiful, and that message dissapear. But after few sec i got initial screen on samsung and i saw that network actually work and my phone is unlocked, i tried with thrid provider and also work. Is that some kind of bug in lollipop or ?
Did you test if the phone was already unlocked before entering the unlock code?
Maybe it said Failed because it was already unlocked?
Anyway, if the 3rd party SIMs are working, there's no problem is there?
Everything works, im just curious about that bug. I tried 3 different SIM and its unlocked

wanting to get my phone sim unlocked..

Hello Everyone!
I currently have a Sprint Variant Samsung Galaxy S7 Edge. I have switched to Tmobile and I am wanting to get this device unlocked in order for me to be able to properly use this phone on another network.
From what I understand, the newer phones use remote unlocking in order to unlock devices and no longer have a code generated using IMEI number.
I have found fairly cheap people who will unlock it on ebay, and with fairly reliable reputation as well.
this is what i have done so far.
1) I have downgraded from the latest version to: G935PVPU2APC5 which i believe is the required version in order to be able to have a device unlocked
2) I factory reset the device
3) I enabled Developer Mode
4) I have enabled USB Debugging
5) I have enabled OEM Unlocking
this is where the issue comes in...
I am unable to use any Dialer Codes in order to access DIAG menus to change stuff around. I need to activate " DM + Modem + ADB " and when i type ##3424# nothing happens. it just calls out.. I was reading online that i have to activate CP Logging in Recovery, but when I boot into recovery the option is not there for me to activate.
I am really wanting to get my device unlocked, and I dont want there to be an issue. does anyone know if that step is necessary or how i can get the dialer menu to work?
elmy2424 said:
i can unlock it for you dont have to enable dm + modem + adb just turn on adb on developer settings, contact me via whatsapp 829-935-8882
Click to expand...
Click to collapse
Are you still unlocking the S7E? What all does it entail?
symbiance said:
Hello Everyone!
I currently have a Sprint Variant Samsung Galaxy S7 Edge. I have switched to Tmobile and I am wanting to get this device unlocked in order for me to be able to properly use this phone on another network.
From what I understand, the newer phones use remote unlocking in order to unlock devices and no longer have a code generated using IMEI number.
I have found fairly cheap people who will unlock it on ebay, and with fairly reliable reputation as well.
this is what i have done so far.
1) I have downgraded from the latest version to: G935PVPU2APC5 which i believe is the required version in order to be able to have a device unlocked
2) I factory reset the device
3) I enabled Developer Mode
4) I have enabled USB Debugging
5) I have enabled OEM Unlocking
this is where the issue comes in...
I am unable to use any Dialer Codes in order to access DIAG menus to change stuff around. I need to activate " DM + Modem + ADB " and when i type ##3424# nothing happens. it just calls out.. I was reading online that i have to activate CP Logging in Recovery, but when I boot into recovery the option is not there for me to activate.
I am really wanting to get my device unlocked, and I dont want there to be an issue. does anyone know if that step is necessary or how i can get the dialer menu to work?
Click to expand...
Click to collapse
Unlocked mines using idoneapps.com. For $35 it can instantly unlock your device, only takes two reboots. You download an app and purchase and click unlock. You can also debrand you phone, read msl and enable hotpsot but that requires rooting.
elmy2424 said:
i can unlock it for you dont have to enable dm + modem + adb just turn on adb on developer settings, contact me via whatsapp 829-935-8882
Click to expand...
Click to collapse
Do you still unlock? I may be interested as I have a Sprint S7 Edge that I want to use on Cricket (sister company to AT&T)

No OEM/bootloader unlocking option on the A20e (SM-A202F)?

Hello, may I ask about the A20e (SM-A202F) here in this A20 forum?
My A20e does not show an option for unlocking the bootloader (well, I thought the "OEM unlocking" would be the term to search for as I know it from my S7).
I started the A20e the first time after unboxing, with no SIM card and no WiFi connected. The date (never updated) was a day in March 2019.
I then even set the date back by 4 weeks and rebooted the phone (as was suggested for the A20, if I remember correctly, if problems with a non-existing or greyed-out OEM unlocking option appear).
Still, no OEM unlocking option is available in the developer options (not even greyed out).
Can other A20e (SM-A202F) users please confirm this? Or do you have that option?
Maybe it's not needed on the A20e, but who knows?
Phone info:
One UI 1.1
Android 9
Baseband ...ASF3
Kernel 4.4.111-16308935
Buildnumber ...ASG1
SE enforcing ..._0004
Knox version 3.3 API level 28 TIMA 4.1.0
Provider ...XKN DBT (unbranded)
Security patch Jul-2019 Release 1
7wells said:
Hello, may I ask about the A20e (SM-A202F) here in this A20 forum?
My A20e does not show an option for unlocking the bootloader (well, I thought the "OEM unlocking" would be the term to search for as I know it from my S7).
I started the A20e the first time after unboxing, with no SIM card and no WiFi connected. The date (never updated) was a day in March 2019.
I then even set the date back by 4 weeks and rebooted the phone (as was suggested for the A20, if I remember correctly, if problems with a non-existing or greyed-out OEM unlocking option appear).
Still, no OEM unlocking option is available in the developer options (not even greyed out).
Can other A20e (SM-A202F) users please confirm this? Or do you have that option?
Maybe it's not needed on the A20e, but who knows?
Phone info:
One UI 1.1
Android 9
Baseband ...ASF3
Kernel 4.4.111-16308935
Buildnumber ...ASG1
SE enforcing ..._0004
Knox version 3.3 API level 28 TIMA 4.1.0
Provider ...XKN DBT (unbranded)
Security patch Jul-2019 Release 1
Click to expand...
Click to collapse
Someone who's already rooted.
https://forum.xda-developers.com/showpost.php?p=80113161&postcount=77
Or
https://forum.xda-developers.com/showpost.php?p=81125253&postcount=180
It also happened with me. I will try to explain what I did to bypass this waiting. First, you got to format everything, cache and data, then reboot your phone and do all of that configuration, but don't turn your wi-fi ON or connect to the internet, go to the date & time settings, set the date to 7 (or more) days back from today and then go to the system updates and try to update your phone (now connected to the internet). Whatever happens now doesn't matter, the important thing is to make sure that your phone got a registry that you tried to update the system 7 days ago. You may now reboot your phone, after rebooting set the date for the current day and turn on developer options, you will see the bootloader option.
Thank you!
Coming back to this (moved) thread after a while, I wonder if unlocking the bootloader will trip Knox. So, will it?
Are there any ways to root the Samsung A20e without tripping Knox?
7wells said:
Thank you!
Coming back to this (moved) thread after a while, I wonder if unlocking the bootloader will trip Knox. So, will it?
Are there any ways to root the Samsung A20e without tripping Knox?
Click to expand...
Click to collapse
I'm sorry but Samsung Knox was made to be tripped. If you touch your recovery partition the Knox will be broken.
Do only changes of the recovery trip Knox?
Is rooting the A20e possible without tripping Knox? (I guess, no)
re-unlock A20e (europa)
Hi, I have problem with re-unlocking bootloader on Galaxy A20e (SM-A202F) after accidental locking in download mode.
- the OEM unlocking option is not displayed in the developer options (it is not possible even after moving the date back 7+ days and clicking on updates and restart mobile)
- After turn on, hold vol- and vol+ and plug in USB cable attached to pc I don't have the option to choose the unlock bootloader by long pressing vol +, only Volume up: Continue and Volume down: Cancel (restart phone)
How to re-unlock bootloader on this mobile? Now I can flashing only original Samsung firmware via Odin, but I need root...
Thanks for tips
.
TWRP now available
https://forum.xda-developers.com/ga...overy-twrp-3-4-0-0-galaxy-a20e-a202f-t4141767
re-unlock locked bootloader A20e (europa)
lebigmac said:
I had the same problem. Here is my solution. I hope it helps. Click my thanks button if it worked for you. Good luck!
https://forum.xda-developers.com/showthread.php?p=83209365#post83209365
Click to expand...
Click to collapse
The procedure does not work. I also performed a wipe cache and a wipe data / factory reset. Then I connected wifi and waited 10 days. Nevertheless, the OEM unlock option is not available in the debug options, and the "Volume long press Device unlock mode" option is not available after entering the download mode. Can anyone advise?
.
lebigmac said:
Hi. Does it say 'KG state: prenormal' on the top left corner when you go into Download mode?
What firmware did you try it with?
Also you shouldn't have to wait 10 days after connecting to a wifi hotspot for it to validate. On my device the validation process is done within a minute.
Click to expand...
Click to collapse
Hi, KG state: prenormal, FRP lock: OFF, OEM Lock: ON(U1), firmware is original XEZ-A202FXXU3ASL4-20200120200351 (Android 9). The last procedure, waiting 10 days, was the last of many I tried.
johnny_nb said:
The procedure does not work. I also performed a wipe cache and a wipe data / factory reset. Then I connected wifi and waited 10 days. Nevertheless, the OEM unlock option is not available in the debug options, and the "Volume long press Device unlock mode" option is not available after entering the download mode. Can anyone advise?
Click to expand...
Click to collapse
set date back 2 weeks
physwizz said:
set date back 2 weeks
Click to expand...
Click to collapse
Hi, I tried to return the date in 7, 14, 30 days and a few months, but without success. I have Samsun Galaxy A20e SM-A202F
Tried to clicking through threads and used search... but seems I am blind.
I have SM-A202F CSC ROM and dreaming to have CSC DBT.
How to change active CSC?
Tried with Odin:
Code:
A202FXXU3BTI7_A202FOXM3BTI7_DBT
Then realized seems Multi CSC because ROM have also OXM ""Region""...
Second attempt with Combination Firmware...
Code:
COMBINATION_FAC_FA90_A202FXXU3ATD1_FAC3ATD1_CL15768665_QB30267852_REV00_user_mid_noship.tar.md5
Here Odin failed... and I saw funny warning text on screen...
Thought this will be easy 5 minute flash and voila ready DBT...
Thanx in advance.
Best Regards
Seems I managed my problem.
First mistake was to flash 5 files... with Home...
Now I have DBT, after using SIM Card from Germany and flashed 4 files and pressed Button during Settup and... magic...
Tried before without SIM card...
Only as info.
Best Regards
adfree said:
Seems I managed my problem.
First mistake was to flash 5 files... with Home...
Now I have DBT, after using SIM Card from Germany and flashed 4 files and pressed Button during Settup and... magic...
Tried before without SIM card...
Only as info.
Best Regards
Click to expand...
Click to collapse
Good news
Try this
https://forum.xda-developers.com/galaxy-a20/development/a20e-testers-t4183683
cizordj said:
I'm sorry but Samsung Knox was made to be tripped. If you touch your recovery partition the Knox will be broken.
Click to expand...
Click to collapse
I managed to do the "bootloader", to log in in "download" mode and to have the "root of my A20e.. without major problems.... but the whole thing is almost useless because anyway you can not change (for what I need) the information of the phone (imei, SN... etc etc etc),, and I believe that it depends precisely on the new security it is equipped with, in accordance withGoogle.......I won't hide from you that I would gladly install the good old Android 4.4......
johnny_nb said:
re-unlock A20e (europa)
Hi, I have problem with re-unlocking bootloader on Galaxy A20e (SM-A202F) after accidental locking in download mode.
- the OEM unlocking option is not displayed in the developer options (it is not possible even after moving the date back 7+ days and clicking on updates and restart mobile)
- After turn on, hold vol- and vol+ and plug in USB cable attached to pc I don't have the option to choose the unlock bootloader by long pressing vol +, only Volume up: Continue and Volume down: Cancel (restart phone)
How to re-unlock bootloader on this mobile? Now I can flashing only original Samsung firmware via Odin, but I need root...
Thanks for tips
Click to expand...
Click to collapse
--------
" - the OEM unlocking option is not displayed in the developer options "....: METTI UN ACCOUNT GOOGLE NEGLI ACCOUNT DEL TELEFONO
Sandro111 said:
--------
" - the OEM unlocking option is not displayed in the developer options "....: METTI UN ACCOUNT GOOGLE NEGLI ACCOUNT DEL TELEFONO
Click to expand...
Click to collapse
-Disable Auto System Update
-Then disable Automatic date and time (Found in General Management) > then set the time back 14 days
-Go to software update then check for update and wait till it registers the device on server
-Once it's registered the OEM Unlock should be visible in the Developer Options

I have an (originally Sprint) S10+ running on T-Mo. CSC SW says TMB/TMB/SPR, the phone has been approved for unlock via T-Mo. Thinking of flashing..

I have an (originally Sprint) S10+ running on T-Mobile, CSC SW version says TMB/TMB/SPR, the phone has been approved for unlock via T-Mobile and T-Mo says to go to Settings, Connections, More connection settings and that the unlock button will be there. There is nothing there...
On this phone (unlike my other S10 and my S22U) it seems the unlock button is under Settings, Software update, and there is a button called UICC Unlock there, but when I press it, it says The network is preparing your services please wait, and then shows Sim restricted.
I'm not sure what's going on. I'm positive T-Force did the unlock properly as they even showed me a screen shot snippet via Twitter T-Force DM showing they had approved the phone (whitelisted it for SIM unlock).
I'm thinking of flashing it to the U1 XAA variant to see if then the unlock button will work properly as I'm pretty sure it's on the phone's end not on T-Mobile's end...thoughts?
Thanks for any help you can provide!

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