Develop Bugs

[Q] Upgrading an Unlocked AT&T Samsung Galaxy SIII

I sincerely apologize if this has been asked before. However, after lots of searching, I have been unable to find an answer anywhere.
I am more experienced with iDevices as opposed to Android. With Apple products, as long as the device is not factory unlocked, every time the firmware is flashed, the unlock process will need to be redone.
So, I have an AT&T Samsung Galaxy S3 which is unlocked via an unlock code, and I use it in the Caribbean. I'd like to update to the latest firmware (4.0.4 > 4.1.1) using Samsung Kies, on my desktop. Before I do so, I'd like to know will the phone remain unlocked after flashing the new firmware? Or will I need to unlock once again?
I apologize if this is a stupid question, but I'd just like to be precautious. Thanks for any help in advance.
P.S. My device is rooted. Will this affect the update?

I don't think the update will effect the unblocking....
But why update thru kies when the stock/rooted rooms are found here too??
Kies will have issues updating if your device is rooted.... So just flash the stock rooted images, via Odin program, here on XDA.
Here are the stock/rooted 4.1.1 ROMs with Odin program as well:
http://forum.xda-developers.com/showthread.php?p=28019751
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

jayRokk said:
I don't think the update will effect the unblocking....
But why update thru kies when the stock/rooted rooms are found here too??
Kies will have issues updating if your device is rooted.... So just flash the stock rooted images, via Odin program, here on XDA.
Here are the stock/rooted 4.1.1 ROMs with Odin program as well:
http://forum.xda-developers.com/showthread.php?p=28019751
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
Alright, thanks. I'll use Odin instead. But can someone give me a definitive answer on whether the update/flashing will affect my unlock?

.Xanadu. said:
Alright, thanks. I'll use Odin instead. But can someone give me a definitive answer on whether the update/flashing will affect my unlock?
Click to expand...
Click to collapse
It won't effect it
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

jayRokk said:
It won't effect it
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
Thanks.

Unlock
.Xanadu. said:
Thanks.
Click to expand...
Click to collapse
Once a phone is Unlocked with Code it stays Unlocked!!!!!!

tailgunner9 said:
Once a phone is Unlocked with Code it stays Unlocked!!!!!!
Click to expand...
Click to collapse
+1 it will stil remains unlocked

Thanks a lot guys. Appreciate the answers.

Sorry for the double post. However, just updating that I just successfully updated to a fresh install of 4.1.1 from 4.0.4, and my unlock is indeed still intact. So, anyone else who is a n00b like myself, and is worried of the same thing when updating, don't be.

Hello. I am new to samsung. It came from At&t and i unlocked it here in the philippines. And as ive checked the software it is still 4.0 and since i want to update the software it only says communication failed. May i ask if is it possible to update my s3 to the latest version? Im really desperate Thank yooooou.

A phone can be relocked once an unlock code has been entered but this only happens if the phone undergoes a repair and the IMEI is changed.
Also, just to calrify as the original responder has mentioned "blocking". A blocked phone is very different to one that is locked. This might confuse people but just to confirm, if you have a blocked phone, unlocking it won't help. A block is done at network level and stops the phone connecting to any network to make or receive a phone call. A lock is at phone level and simply limits the phone to working on one network only. A lock can be switched from on to off to allow it to work on all networks but a block can only be removed by the networks.

downgrade baseband?

Hey guys... Looking for 2 answers...
Can the baseband of an M919 be downgraded?
If so, can you point me to a tutorial or Instructions?

It all depends. If you're still on the MDL bootloader you can Odin flash the MDL baseband. If you're already on the MK2 bootloader you can not go back.
☞ Sent from here☜???

baseballfanz said:
It all depends. If you're still on the MDL bootloader you can Odin flash the MDL baseband. If you're already on the MK2 bootloader you can not go back.
☞ Sent from here☜???
Click to expand...
Click to collapse
Already bought unlock codes from FastGSM... so, no need to downgrade now... But, for reference... How do I know which bootloader Im on? or how would one preserve an old bootloader if updating a ROM

You will get the new bootloader if you a) took the OTA update or b) update via kies or c) Odin flashed the whole 4.3 firmware.
In Settings/More/About device, look at your baseband. The last 3 digit should be MDL or MK2.
That's your modem.
Bootloader you need to go into Download mode I believed.
☞ Sent from here☜???

RBThompsonV said:
Already bought unlock codes from FastGSM... so, no need to downgrade now... But, for reference... How do I know which bootloader Im on? or how would one preserve an old bootloader if updating a ROM
Click to expand...
Click to collapse
To be honest, I've found the best thing to do is not jump on the band-wagon and flash an update until you research what the Devs suggest before flashing away. It has saved me a ton of grief and aggravation. They know these updates in and out. For instance, they were warning people to hold off on the MDL to MK2 because of the bootloader and KNOX issue but people didn't research and now some are having problems and it is too late, you can't go back. If you did the OTA update or through Kies you are stuck with MK2 and KNOX. For most people it's no big deal, but if you enjoy modding your phone it can be a pain in the rear.

grncherry said:
To be honest, I've found the best thing to do is not jump on the band-wagon and flash an update until you research what the Devs suggest before flashing away. It has saved me a ton of grief and aggravation. They know these updates in and out. For instance, they were warning people to hold off on the MDL to MK2 because of the bootloader and KNOX issue but people didn't research and now some are having problems and it is too late, you can't go back. If you did the OTA update or through Kies you are stuck with MK2 and KNOX. For most people it's no big deal, but if you enjoy modding your phone it can be a pain in the rear.
Click to expand...
Click to collapse
Picked it up with the MK2... was trying to do a SIM UNLOCK without paying $30US (The IMEI unlock is $30, the USB/software unlock is $15... and the debug unlock is free...but it looks like the debug is done away with in MK2)...
Should have probably mentioned, this is a Metro PCS flashed with TMo rom (did that to try to get the debug menu to work correctly as there has been some luck with it)... Anyway, now the fun part of getting back to MPCS...
On a side note... you guys know about the Re-Partition flag in Odin? You guys here in XDA make it sound as if its a good way to brick a phone... in the MPCS forum (on a dif. site)... has that mark checked when flashing back to the MPCS rom (stock) from a TMo rom... any ideas?

RBThompsonV said:
Picked it up with the MK2... was trying to do a SIM UNLOCK without paying $30US (The IMEI unlock is $30, the USB/software unlock is $15... and the debug unlock is free...but it looks like the debug is done away with in MK2)...
Should have probably mentioned, this is a Metro PCS flashed with TMo rom (did that to try to get the debug menu to work correctly as there has been some luck with it)... Anyway, now the fun part of getting back to MPCS...
On a side note... you guys know about the Re-Partition flag in Odin? You guys here in XDA make it sound as if its a good way to brick a phone... in the MPCS forum (on a dif. site)... has that mark checked when flashing back to the MPCS rom (stock) from a TMo rom... any ideas?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2492557
Don't know if you can gain any info from here, I didn't read through the thread. Hope something there helps you. By the way you are permanently unlocked so no worries there

RBThompsonV said:
Picked it up with the MK2... was trying to do a SIM UNLOCK without paying $30US (The IMEI unlock is $30, the USB/software unlock is $15... and the debug unlock is free...but it looks like the debug is done away with in MK2)...
Should have probably mentioned, this is a Metro PCS flashed with TMo rom (did that to try to get the debug menu to work correctly as there has been some luck with it)... Anyway, now the fun part of getting back to MPCS...
On a side note... you guys know about the Re-Partition flag in Odin? You guys here in XDA make it sound as if its a good way to brick a phone... in the MPCS forum (on a dif. site)... has that mark checked when flashing back to the MPCS rom (stock) from a TMo rom... any ideas?
Click to expand...
Click to collapse
If your phone is rooted just use RegionLockAway app.
☞ Sent from here☜???

baseballfanz said:
If your phone is rooted just use RegionLockAway app.
☞ Sent from here☜???
Click to expand...
Click to collapse
I tried, it didnt work.

RBThompsonV said:
I tried, it didnt work.
Click to expand...
Click to collapse
Is your phone rooted? Peoples here saying it work fir their metro pcs phone.
http://forum.xda-developers.com/showthread.php?t=2381821
☞ Sent from here☜???

baseballfanz said:
Is your phone rooted? Peoples here saying it work.
http://forum.xda-developers.com/showthread.php?t=2381821
☞ Sent from here☜???
Click to expand...
Click to collapse
Is the phone paid for in full?
If so the carrier that sold it to you HAS to give you the unlock code.

baseballfanz said:
Is your phone rooted? Peoples here saying it work fir their metro pcs phone.
http://forum.xda-developers.com/showthread.php?t=2381821
☞ Sent from here☜???
Click to expand...
Click to collapse
oh, hell... you know what... I think I didnt root the TMo rom after flashing from Metro...
HA!!! I think that was the issue

Skipjacks said:
Is the phone paid for in full?
If so the carrier that sold it to you HAS to give you the unlock code.
Click to expand...
Click to collapse
Yeah, try having that conversation with AT&T...

[How to] Sim Unlock the Galaxy S4 Without the Hidden Menu

HOW TO SIM UNLOCK THE SGH-M919, no unlock code necessary.
This thread is for all of you that have tried this method and have failed: How to SIM unlock Samsung Galaxy S4 SGH-M919 (tested - works) - Updated: 7/2/13
EDIT: I'm sorry to say that after testing this method out on a replacement s4 running stock 4.3 with the MK2 bootloader, this method DOES NOT WORK ON 4.3 OTA OR MK2 BOOTLOADER
The previous method worked on Samsung devices running the old firmware and was patched by T-Mobile and Samsung in the M919UVUAMDL release. Many new (purchased in the last few months) devices have been known to have this release pre-installed.
This is not my work, it is chainfire's genius. You must, at the very least, go and give him the "Thanks". If you can, donate a beer.
His app "RegionLockAway" was intended to de-regionlock devices that Samsung had marketed as "unlocked" (i9505, N9005, etc).
However, a common side-effect for other carrier-branded variants was that it unlocked their devices as well. I tried it and it worked on my SGH-M919 that I bought from T-Mobile.
TO UNLOCK THE M919,
1. Make sure that you are on the completely stock touchwiz setup that came with the phone (bootloader, kernel, and stock touchwiz rom). You can restore via kies/odin here: http://forum.xda-developers.com/showthread.php?t=2258628. Again, thank the developer if you used it.
2. Install RegionLockAway Thread: http://forum.xda-developers.com/showthread.php?t=2470551
3. Thank the developer, even if it doesn't work.
4. Run the RegionLockAway app and click "Region Unlock"
5. Follow all onscreen instructions carefully.
6. Reboot and test it out with preferably a non-North American SIM. This ensures that not only is it unlocked, but also region unlocked. If it asks you for a code, it failed.
As a standard disclaimer:
If you bricked it, it's your fault. I tried it on my own and it worked for me.
As always, I highly recommend donating to the developers who helped you.

First time first! Thanks for this info. I themed chain fire as well
Sent from my SGH-M919 using XDA Premium 4 mobile app
---------- Post added at 09:21 PM ---------- Previous post was at 09:20 PM ----------
DigitalHeretic said:
First time first! Thanks for this info. I thanked Chainfire as well
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Sent from my SGH-M919 using XDA Premium 4 mobile app

region unlock and sim unlock aren't the same as far as I know.
You can use sims outside of your region (country) but you can't slap an at&t sim card in there and use it.

HTCMDA said:
region unlock and sim unlock aren't the same as far as I know.
You can use sims outside of your region (country) but you can't slap an at&t sim card in there and use it.
Click to expand...
Click to collapse
No they are not BUT they're closely related that doing one usually result in the other. RegionLockAway will SIM unlock when use correctly. I used it a few months ago to SIM unlock my GS4. After it was done I put in an AT&T SIM and made a few calls plus try a few websites.
☞ Sent from here☜???

Like I said, SIM unlock is usually a side effect of Region-unlocking.
BTW: @baseballfanz Sugarland, TX is a nice place to live. (The astros still suck).

superbowlmania said:
BTW: @baseballfanz Sugarland, TX is a nice place to live. (The astros still suck).
Click to expand...
Click to collapse
Haha can't argue with you there.
There's some talks about Nolan Ryan joining the Astros in some capacity soon. Hopefully he can get them in the right directions.
☞ Sent from here☜

superbowlmania said:
Like I said, SIM unlock is usually a side effect of Region-unlocking.
BTW: @baseballfanz Sugarland, TX is a nice place to live. (The astros still suck).
Click to expand...
Click to collapse
Was you rooted when tried the program? I tried it and it said that wasn't able to gain root access and bumped me to homescreen... I am not rooted and on Stock 4.3.3

villeban said:
Was you rooted when tried the program? I tried it and it said that wasn't able to gain root access and bumped me to homescreen... I am not rooted and on Stock 4.3.3
Click to expand...
Click to collapse
Yes you need root for the app to work.
☞ Sent from here☜

HTCMDA said:
region unlock and sim unlock aren't the same as far as I know.
You can use sims outside of your region (country) but you can't slap an at&t sim card in there and use it.
Click to expand...
Click to collapse
T-Mo gave me an "Unlock code" and it was from Sammy, and it would not work. After 3 tries, each with a different code, it still would not work, so I gave up.
Today using chainfire's app, it works, and I insert an At&T sim card, and it doesn't ask for the code anymore! it's UNLOCKED, and it recieves a signal and connects to the internet via my wireless router. All's good and after placing my T-Mo sim back in, it's all good!
All the connections still like it used to be.
Awesome!

I just called tmobile they provide me with unlock code.
Sent from my C6916 using Tapatalk 2

epsix said:
I just called tmobile they provide me with unlock code.
Sent from my C6916 using Tapatalk 2
Click to expand...
Click to collapse
Why go off topic with this kind of post?
Anyways... This has worked for mee at least for 3 devices I have used it, S4 and S3.
Sent from my SGH-M919 using XDA Premium 4 mobile app

didnt work for me,.... looks like ill have to pay for one. Any recommendations?

osugsxr said:
didnt work for me,.... looks like ill have to pay for one. Any recommendations?
Click to expand...
Click to collapse
This method worked and my m919 is working on att! =D Is this a permanent solution?

osugsxr said:
didnt work for me,.... looks like ill have to pay for one. Any recommendations?
Click to expand...
Click to collapse
A little more info would help. "It didn't work for me" doesn't tell us much. Why didn't it work? Any reason given? Firmware, rooted non rooted?
Faint333 said:
This method worked and my m919 is working on att! =D Is this a permanent solution?
Click to expand...
Click to collapse
Yes should be permanent.
☞ Sent from here☜

baseballfanz said:
A little more info would help. "It didn't work for me" doesn't tell us much. Why didn't it work? Any reason given? Firmware, rooted non rooted?
Yes should be permanent.
☞ Sent from here☜
Click to expand...
Click to collapse
4.3
baseband: mk2
build: jss15j.m919uvuemk2
rooted
try a different version?

I unlocked my SGH-I337 using a similar method, only I flashed an older modem that has the service menu unlocked. Is that method possible on this phone also?
Sent from my Hyperdriven S4

I had updated to the 4.3 firmware before unlocking and T-Mobile's unlock code didn't work on my phone. This was my only recourse and it worked. Thanks, OP!

davebegue said:
Howdy _ i was thinking about trying this method for an sgh-m919 so I could use it on AT&T? Any thoughts or suggestions please. Do you think I would need a t mobile sim card to do the unlocking process?
Click to expand...
Click to collapse
You do not need a T-Mobile sim card but the phone must be rooted.
☞ Sent from here☜

Worked well today, just tried it. Thank you

Is it absolutely necessary to be on stock firmware? I gave it a try running VirginRom and it seems to have worked, but I don't have a sim from another carrier to test with.

Need to unlock for att

Need help unlocking a tmobile s4 to use on att. Ive tried many methods but nothing has been succesful..i was able to flash my rom but when i try to make a call i get the following messages...heres my phone info ..desperaltey need help

bx10r said:
Need help unlocking a tmobile s4 to use on att. Ive tried many methods but nothing has been succesful..i was able to flash my rom but when i try to make a call i get the following messages...heres my phone info ..desperaltey need help
Click to expand...
Click to collapse
This is a SIMPLE and faster way to do it. just download, install and unlock!
I had T-mobile send me the unlock code from SAMSUNG, and it wouldn't work. Tried so many times with "Tech Support" and they couldn't do it.
ONE TIME using chainfire's app and Viola! DONE and UNLOCKED!
http://forum.xda-developers.com/showthread.php?t=2628120
if that won't work for you this might:
http://forum.xda-developers.com/showthread.php?t=2628120
Aloha and Good Luck!

bobolinko said:
this is a simple and faster way to do it. Just download, install and unlock!
I had t-mobile send me the unlock code from samsung, and it wouldn't work. Tried so many times with "tech support" and they couldn't do it.
One time using chainfire's app and viola! Done and unlocked!
http://forum.xda-developers.com/showthread.php?t=2628120
if that won't work for you this might:
http://forum.xda-developers.com/showthread.php?t=2628120
aloha and good luck!
Click to expand...
Click to collapse
ok, so being on a rom wont work i suppose...i will try tonight and report back

bx10r said:
ok, so being on a rom wont work i suppose...i will try tonight and report back
Click to expand...
Click to collapse
I am on dbROM and just tried it (chainfire app only). It says it worked, but cannot test...
It appears to modify the modem.

gaww said:
i am on dbrom and just tried it (chainfire app only). It says it worked, but cannot test...
Click to expand...
Click to collapse
oh,,,,that was quick...lol . U did the 1st or 2nd link? I wanna stay on db...

bx10r said:
oh,,,,that was quick...lol . U did the 1st or 2nd link? I wanna stay on db...
Click to expand...
Click to collapse
out of thanks...sorry..

bx10r said:
oh,,,,that was quick...lol . U did the 1st or 2nd link? I wanna stay on db...
Click to expand...
Click to collapse
which tar do i sue? I did this last night and got a constant bootlopp on the tmobile white and pick screen...maybe i chose the wrong tar?

bx10r said:
which tar do i sue? I did this last night and got a constant bootlopp on the tmobile white and pick screen...maybe i chose the wrong tar?
Click to expand...
Click to collapse
Chainfire's, RegionLockAway is an app. Just install app and run it.
☞ Sent from here ☜

baseballfanz said:
chainfire's, regionlockaway is an app. Just install app and run it.
☞ sent from here ☜
Click to expand...
Click to collapse
i did...so im confused now..im on db rom...have to reflash tho..once the rom is working i use the chainfire apk and it automatically unlocks for att? My head hurts......lmao

bx10r said:
i did...so im confused now..im on db rom...have to reflash tho..once the rom is working i use the chainfire apk and it automatically unlocks for att? My head hurts......lmao
Click to expand...
Click to collapse
If your phone is SIM unlocked but region locked, RegionLock Away will unlock your phone. If it is SIM locked in addition to being region locked, RegionLock Away can't do anything for you on its own. There's two different locks in play here. If regular unlock methods didn't work (including paid methods of entering in the code), RegionLock Away should finish getting rid of the lock.

tsumi said:
if your phone is sim unlocked but region locked, regionlock away will unlock your phone. If it is sim locked in addition to being region locked, regionlock away can't do anything for you on its own. There's two different locks in play here. If regular unlock methods didn't work (including paid methods of entering in the code), regionlock away should finish getting rid of the lock.
Click to expand...
Click to collapse
sim locked meaning its tmobile but wann use on att. I used the free one...accordin to the guy its the same but **** if the paid onw works ill buy it...i havent used any paid codes, i tried the dialing of *#0011# to open the hidden menus but that didnt work...so i should go paid version for better results?

bx10r said:
sim locked meaning its tmobile but wann use on att. I used the free one...accordin to the guy its the same but **** if the paid onw works ill buy it...i havent used any paid codes, i tried the dialing of *#0011# to open the hidden menus but that didnt work...so i should go paid version for better results?
Click to expand...
Click to collapse
If you're on a custom rom, and you're on 4.3, you do not have access to the service menus. You need to be on a stock Samsung rom and on 4.2.2.
When I'm talking about paid codes, I'm talking about the unlocker services online that require you to tell them your IMEI, not the RegionLock away app.

Ok, so rnd 2 happened last night. I reverted back to 4.2.2 via http://forum.xda-developers.com/showthread.php?t=2258628but yet again i cant make calls. So now what can be wrong? Is ot cause on on mk2? I tried to go to md modem but i kept gettin fail in odin...if i make a call the recipient sees it...but nothing..

When i try this method i an get all the way to step 6. When there i do t have an option 3, just 1 option. So wtf??????? Grrrrrrr
http://forum.xda-developers.com/showthread.php?t=2283068

bx10r said:
Ok, so rnd 2 happened last night. I reverted back to 4.2.2 via http://forum.xda-developers.com/showthread.php?t=2258628but yet again i cant make calls. So now what can be wrong? Is ot cause on on mk2? I tried to go to md modem but i kept gettin fail in odin...if i make a call the recipient sees it...but nothing..
Click to expand...
Click to collapse
I would have thought the stock MDL firmware would have also reverted the modem to MDL. I suggest finding one that does (re-ODIN this one first - I recall a few people said they had to do it twice) , as possibly both the ROM and Modem need to be MDL for the unlock process to work.

OK. You have to be completely stock in order for this to work. I am not sure why you are getting a fail message on Odin. Can you maybe give us a description of how you are doing it? The Sim unlock thread clearly says you have to be completely stock which will be android version 4.22 with MDL. You are back on 4.22 but you still have the mk2 modem. We will have to figure out how to get you completely stock before we can go any further.
Sent from my SGH-M919 using xda app-developers app
---------- Post added at 01:45 AM ---------- Previous post was at 01:32 AM ----------
Go here http://www.sammobile.com/firmwares/3/?download=14362 and download the 4.22 file for M919. The link should go directly to it. Follow their instructions and you should be completely stock one you're done. Once your done be sure to test your device and make sure you have sound. If you don't have sound you most likely have a hardware problem so you will have to root again and reset your counter then unroot so you can return your device if you haven't voided your warranty. If you do have sound then go back here http://forum.xda-developers.com/showthread.php?t=2283068 and Sim unlock your phone and profit. Good luck!
Sent from my SGH-M919 using xda app-developers app

Unlocking A505U Bootloader with ADB

I have an A50(A505U through Sprint) with a locked bootloader. I've tried the 7 day trick to enable Oem Unlock in Developer Options but it doesn't work. I'm wondering what the chances of being able to to force oem unlock using adb is without bricking my device? I figure this is to easy of a solution but hoping someone is willing to try it!

I also have the same Sprint A505U and I'm having the same problem. Hope we get a resolution for this.

im picking up a verizon A505U tomorrow.. out of curiosity, are you able to flash combo firmware?
also to add, you cant force oem unlock using adb.. you can probably set the oem unlock to on in adb but it doesnt actually change the unlock bit wherever its stored in the firmware so as soon as you reboot its back to 0.
If you can flash combo however you can enable oem unlock then flashing back to stock the oem unlock bit should remain on.
Either way, I will be playing with it all weekend lol.. i just hope its not like the A102U i purchased from tmo which doesmt let me flash anything

elliwigy said:
im picking up a verizon A505U tomorrow.. out of curiosity, are you able to flash combo firmware?
also to add, you cant force oem unlock using adb.. you can probably set the oem unlock to on in adb but it doesnt actually change the unlock bit wherever its stored in the firmware so as soon as you reboot its back to 0.
If you can flash combo however you can enable oem unlock then flashing back to stock the oem unlock bit should remain on.
Either way, I will be playing with it all weekend lol.. i just hope its not like the A102U i purchased from tmo which doesmt let me flash anything
Click to expand...
Click to collapse
let me know if you get anywhere ? good luck.

elliwigy said:
im picking up a verizon A505U tomorrow.. out of curiosity, are you able to flash combo firmware?
also to add, you cant force oem unlock using adb.. you can probably set the oem unlock to on in adb but it doesnt actually change the unlock bit wherever its stored in the firmware so as soon as you reboot its back to 0.
If you can flash combo however you can enable oem unlock then flashing back to stock the oem unlock bit should remain on.
Either way, I will be playing with it all weekend lol.. i just hope its not like the A102U i purchased from tmo which doesmt let me flash anything
Click to expand...
Click to collapse
Yes I have used Odin to flash a sprint firmware from samfrew and and found out it was sprint verzion firmware when poking around.
I suspect it is going to be the same. All U variants can't be unlocked from what I've been told.
Sent from my SM-A505U using Tapatalk

Xplorer4x4 said:
Yes I have used Odin to flash a sprint firmware from samfrew and and found out it was sprint verzion firmware when poking around.
I suspect it is going to be the same. All U variants can't be unlocked from what I've been told.
Click to expand...
Click to collapse
yea, stock u firmware no problem but havent found a way to flash combo yet :-/

elliwigy said:
yea, stock u firmware no problem but havent found a way to flash combo yet :-/
Click to expand...
Click to collapse
To flash vzw/sprint combo firmware? I flashed it on a 505u from Sprint with Odion after an expirament resulted in a soft brick.
Sent from my SM-A505U using Tapatalk

Xplorer4x4 said:
To flash vzw/sprint combo firmware? I flashed it on a 505u from Sprint with Odion after an expirament resulted in a soft brick.
Sent from my SM-A505U using Tapatalk
Click to expand...
Click to collapse
you dont get it saying factory approval needed for factory binary?
Sent from my SM-G975U using Tapatalk

I got one from Samsung Insight Program and there is no way to install 3rd party boot loader.

elliwigy said:
you dont get it saying factory approval needed for factory binary?
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Nope. I got in to download mode and flashed the sprint firmware from samfrew and it works fine. I discovered the firmware has some vzw apps included but not all of typical vzw bloat.
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Xplorer4x4 said:
Nope. I got in to download mode and flashed the sprint firmware from samfrew and it works fine. I discovered the firmware has some vzw apps included but not all of typical vzw bloat.
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im confused lol..
i can install stock firmware fine whether its sprint or not..
what im wanting to flash that i cant so far is the A505U Factory Combination firmware, not the stock based firmware.
Factory combo firmware usually cant flash and will say it needs approval to flash factory binary..
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Xplorer4x4 said:
Nope. I got in to download mode and flashed the sprint firmware from samfrew and it works fine. I discovered the firmware has some vzw apps included but not all of typical vzw bloat.
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I take it it's currently impossible to unlock the bootloader on the SM-A505U?
I haven't done much with Android since I had a spat of amnesia so I don't remember much, but is it possible to root this phone without unlocking the bootloader? I don't have any plans of installing a custom ROM, just want root privileges.

Witam! I znalazł ktoś jakiś sposób na odblokowanie? Zależy mi bardzo na TWRP oraz Root.

Was anyone able to flash a combination AP file? I get a secure check fail for everything. I'm using Heimdall. Whichever packet is uploaded first, it will fail at that packet.
Edit: Just realized it's probably because of RMM state. Has anyone discovered a bypass? I guess I'll try waiting for 7 days with no sim card and see if that does it. Tried Chimera tool to RMM Unlock with no luck

Straight Talk A505U (SM-S506DL)
Following along this thread. This is my first post ever. I have some experience with odin and Samsung. I would like to try out flashing and return with the results. Not afraid to soft brick. Could I possibly get a link to anything you have so far and I will share anything I find? Thank you.
Wilko Solutions
elliwigy said:
im confused lol..
i can install stock firmware fine whether its sprint or not..
what im wanting to flash that i cant so far is the A505U Factory Combination firmware, not the stock based firmware.
Factory combo firmware usually cant flash and will say it needs approval to flash factory binary..
Sent from my SM-G975U using Tapatalk
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So has anyone got combo firmware to load on this? Im also getting needs approval

Phonebricker said:
So has anyone got combo firmware to load on this? Im also getting needs approval
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nope

wilko64 said:
Following along this thread. This is my first post ever. I have some experience with odin and Samsung. I would like to try out flashing and return with the results. Not afraid to soft brick. Could I possibly get a link to anything you have so far and I will share anything I find? Thank you.
Wilko Solutions
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there was nothing to give...

elliwigy said:
nope
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So basically there's no frp bypass working? Besides hardware like z3x?

Phonebricker said:
So basically there's no frp bypass working? Besides hardware like z3x?
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you didnt ask about frp bypass and this thread is about bootloader unlocking at which isnt possible from what i can tell
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