Related
I have the sprint gs4 and its at MK2 and 4.3. I am wondering if I can sim unlock this phone without calling the carrier for domestic use? I called the carrier first to ask for a sim unlock and because the previous owner was late on his bill payment twice last year they say the account isn't in good standing and refuse to unlock it. So I rooted my phone and lost my wifi and mobile network, got that fixed and decided to go to sprint and add the phone to my account and learned my phone was freezing on the dial screen and no sound, so I followed Spiricore’s Extra Safe Root-To-ROM Guide to resolve the issues and that is where I stand now.
Can someone please point me in the right direction if this phone is able to be sim unlocked without having the carrier do it?
mikeydread007 said:
I have the sprint gs4 and its at MK2 and 4.3. I am wondering if I can sim unlock this phone without calling the carrier for domestic use? I called the carrier first to ask for a sim unlock and because the previous owner was late on his bill payment twice last year they say the account isn't in good standing and refuse to unlock it. So I rooted my phone and lost my wifi and mobile network, got that fixed and decided to go to sprint and add the phone to my account and learned my phone was freezing on the dial screen and no sound, so I followed Spiricore’s Extra Safe Root-To-ROM Guide to resolve the issues and that is where I stand now.
Can someone please point me in the right direction if this phone is able to be sim unlocked without having the carrier do it?
Click to expand...
Click to collapse
If you are on 4.3 with the Knox bootloader you can't do what you're asking as far as I know. You'd need to go back to MDC or MDL, and you can't if your on MJA/MK2.
If you're not on the Knox bootloader there are instructions in these forums for domestic sim unlock. THIS QUESTION IS ASKED EVERY. " DAY - CAN I SIM UNLOCK, HOW TO SIM UNLOCK, DOMESTIC SIM UNLOCK" ETC..
Maybe you'll get lucky and get it going.
oh yes you can
you only trip the knox counter but i install any rom i want all the time
wont be under warranty but who cares as you can pretty much flash what you want
you can even get back to stock official mk2 but knox warranty bit will = 0x1 which means something been modified but thats all
just run triangle away and reset counter to 0 (follow its direcections) then after its done let it reboot then power off phone
put phone in dload mode and flash official mja and let it OTA to MK2
works for me to get back to stock
i use philz cwmr for my recovery and i install supersu1.86.zip but make sure after you boot into philz cust recovery tell it to reboot to bootloader one time and select NO to fix root
after it boots back into the recovery flash supersu1.86.zip and bam your rooted with a custom recovery
from this point you can install just about any rom i believe
en11gma said:
oh yes you can
you only trip the knox counter but i install any rom i want all the time
wont be under warranty but who cares as you can pretty much flash what you want
you can even get back to stock official mk2 but knox warranty bit will = 0x1 which means something been modified but thats all
just run triangle away and reset counter to 0 (follow its direcections) then after its done let it reboot then power off phone
put phone in dload mode and flash official mja and let it OTA to MK2
works for me to get back to stock
i use philz cwmr for my recovery and i install supersu1.86.zip but make sure after you boot into philz cust recovery tell it to reboot to bootloader one time and select NO to fix root
after it boots back into the recovery flash supersu1.86.zip and bam your rooted with a custom recovery
from this point you can install just about any rom i believe
Click to expand...
Click to collapse
There currently isn't a way to reset the knox warranty flag. If you've done it than show some pictures. Triangle away resets the load counter but not the warranty flag. So it's kind of useless until there is a method to reset the knox warranty flag.
But that said, while you cannot currently downgrade fully to MDC because of the knox enabled bootloader in MJA and newer. I believe all you have to do is downgrade to the MDC modem to attempt the unlock process. If you search the unlock threads I believe people have been successful. After you complete the unlock then you can flash your modem back to MJA or MK2.
sim unlock even possible?
Hello,
I wonder if it is possible to unlock the sim of a sprint galaxy sph-L720 with mk2 baseband and android 4.3.?
What steps do I follow to unlock sim without being root?
you need to root first and change the rom? could you recommend some procedure.
I can return to the mk2 mdc or not as the official 4.2.2 and mdc?
sorry, use a translator to ask my question.
I hope you can help me.
Thank you for your attention.
en11gma said:
oh yes you can
you only trip the knox counter but i install any rom i want all the time
wont be under warranty but who cares as you can pretty much flash what you want
you can even get back to stock official mk2 but knox warranty bit will = 0x1 which means something been modified but thats all
just run triangle away and reset counter to 0 (follow its direcections) then after its done let it reboot then power off phone
put phone in dload mode and flash official mja and let it OTA to MK2
works for me to get back to stock
i use philz cwmr for my recovery and i install supersu1.86.zip but make sure after you boot into philz cust recovery tell it to reboot to bootloader one time and select NO to fix root
after it boots back into the recovery flash supersu1.86.zip and bam your rooted with a custom recovery
from this point you can install just about any rom i believe
Click to expand...
Click to collapse
The OP was asking if MK2 can do the SIM unlock and the first response was correct. All the info on here regarding doing the unlock require the phone to be reverted back to pre-mf9 firmware. MDL usually. Once someone takes the MJA or MK2 bootloader they are stuck and can not go back. Everything you said about rooting and flashing on MK2 is correct, just not relevant to the original question.
CyberpodS2 said:
The OP was asking if MK2 can do the SIM unlock and the first response was correct. All the info on here regarding doing the unlock require the phone to be reverted back to pre-mf9 firmware. MDL usually. Once someone takes the MJA or MK2 bootloader they are stuck and can not go back. Everything you said about rooting and flashing on MK2 is correct, just not relevant to the original question.
Click to expand...
Click to collapse
i never said one time triangle away resets knox counter
i clearly said it will void the warranty
i said you can go back to stock
go in settings about phone and it will say official in both areas where you check
you can then take any OTA update just fine
so yes you are stock exactly like i said
i clearly said warranty will be bad but who cares.
people getting drunk and on the forums again....
I don't know about MkII but I took the 4.3mja OTA and that was before I had attempted any rooting or anything like that. So I started from there. I did root 4.3 and then ran Sacs but wasn't able to find any way to unlock until I found this info below:
I was able via odin to flash the phone and modem from the files in http://forum.xda-developers.com/showpost.php?p=49209582&postcount=695
and then find the file for MDC modem flash (that file is on first page of international unlock thread).
I first followed the international unlock guide, then the domestic unlock guide and I was able to unlock my phone. It was working fine on at&t until I re-rooted and now I'm not getting data.
Now, I saw the little knox message at the top of the screen on boot after rooting the first time, but when I flashed the stock tar from the post above it doesn't show up anymore, for whatever it's worth.
Right now I'm on the 4.3 from above with an MDC baseband.
Help please with SPH-L720
pennypimp said:
I don't know about MkII but I took the 4.3mja OTA and that was before I had attempted any rooting or anything like that. So I started from there. I did root 4.3 and then ran Sacs but wasn't able to find any way to unlock until I found this info below:
I was able via odin to flash the phone and modem from the files in http://forum.xda-developers.com/showpost.php?p=49209582&postcount=695
and then find the file for MDC modem flash (that file is on first page of international unlock thread).
I first followed the international unlock guide, then the domestic unlock guide and I was able to unlock my phone. It was working fine on at&t until I re-rooted and now I'm not getting data.
Now, I saw the little knox message at the top of the screen on boot after rooting the first time, but when I flashed the stock tar from the post above it doesn't show up anymore, for whatever it's worth.
Right now I'm on the 4.3 from above with an MDC baseband.
Click to expand...
Click to collapse
Please can anyone tell me the reason why I cannot flash anything via odin... I'm trying flash stock Rom MJA baseband over MK2, but everytime i click start, odin take about 10 seconds after it fails, the same error while trying to flash MCD, MDL, and when trying to downgrade only the MK2 Baseband to MDC
Andosonson said:
Please can anyone tell me the reason why I cannot flash anything via odin... I'm trying flash stock Rom MJA baseband over MK2, but everytime i click start, odin take about 10 seconds after it fails, the same error while trying to flash MCD, MDL, and when trying to downgrade only the MK2 Baseband to MDC
Click to expand...
Click to collapse
Because you CANNOT downgrade via odin anymore thanks to Knox. You can't go from NAE to MK2 or MK2 to MJA. MODEMS are fine but full tars are not.
Sent from my SPH-L720 using Tapatalk
daniel4653 said:
Because you CANNOT downgrade via odin anymore thanks to Knox. You can't go from NAE to MK2 or MK2 to MJA. MODEMS are fine but full tars are not.
Sent from my SPH-L720 using Tapatalk
Click to expand...
Click to collapse
Is that mean my SPH-L720 cannot be unlocked? Or is it impossible to get this phone unlocked if someone already upgrade to MK2
I know this is counter intuitive to most people, they usually want to stick with the older bootloader without that KNOX crap.
I want the newest bootloader so I can run the current kernel for 4.4.2, right now my phone is stuck on the MG1 bootloader, which can't run the kernel for this version and I don't have WIFI.
I tried flashing numerous times with ODIN for factory firmware from sammobile. I have an I337M from Canada (Rogers/Bell/Telus)
I can't get OTA to get working again because it thinks I'm on modified system etc, bootloader, even I reflashed everything...
Have you tried a data factory reset from within stock recovery?
BriEE said:
I know this is counter intuitive to most people, they usually want to stick with the older bootloader without that KNOX crap.
I want the newest bootloader so I can run the current kernel for 4.4.2, right now my phone is stuck on the MG1 bootloader, which can't run the kernel for this version and I don't have WIFI.
I tried flashing numerous times with ODIN for factory firmware from sammobile. I have an I337M from Canada (Rogers/Bell/Telus)
I can't get OTA to get working again because it thinks I'm on modified system etc, bootloader, even I reflashed everything...
Click to expand...
Click to collapse
Check here, http://forum.xda-developers.com/showthread.php?t=2269304
Remember your on a I337M, your bootloader is unlocked. Do NOT flash any US-based AT&T firmwares or your end up with a normal locked I337. What version are you trying to flash in Odin? Flashing the MG1 firmware should work, what errors is Odin producing?
i have galaxy s4 i9505 and i want to know if i need to unlock the bootloader in order to instal custom rom(cyanogen).the phone is in stock condition(not rooted no roms or anything)ive checked the first 10 pages of google results and some guides say i if i dont unlock the bootloader i will brick the phone and some say i dont need to unlock it.i searched this forum aswell but i just end up with 100 tabs open and still cant find my answer.
The only thing you need to do is this. Install TWRP using Odin, then flash your ROM using TWRP. The only mention of locked bootloaders comes if you own an AT&T or Verizon Galaxy S4. Those two models have a locked bootloader that cannot be unlocked, and attempts to change the bootloader on those devices have led to soft bricks which can be resolved by flashing the correct bootloader in the BL slot in Odin.
I hit on UPDATE on the phone for an OTA update but it only says UNABLE TO CONNECT AT&T SERVER. When I bought it, it had 5.0.1 (I337UCUGOC3) out of the box. Searching on internet says that is bootloader locked (so I cant do anything).
- Can I Update to I337UCUGOK2 and bootloader will be unlocked (I mean, will I be able to do it)?
- Does anyone know where can I grab I337UCUGOK2 for offline install and is it ODIN safe to update it (remember I have I337UCUGOC3 bootloader locked)?
please help
Once the bootloader is locked, it will always be locked until someone finds a way to unlock it. Updating the bootloader will not allow it to be unlocked.
cybercuate said:
I hit on UPDATE on the phone for an OTA update but it only says UNABLE TO CONNECT AT&T SERVER. When I bought it, it had 5.0.1 (I337UCUGOC3) out of the box. Searching on internet says that is bootloader locked (so I cant do anything).
- Can I Update to I337UCUGOK2 and bootloader will be unlocked (I mean, will I be able to do it)?
- Does anyone know where can I grab I337UCUGOK2 for offline install and is it ODIN safe to update it (remember I have I337UCUGOC3 bootloader locked)?
please help
Click to expand...
Click to collapse
Unlocking/exploiting the bootloader for the AT&T is still in process, I think.
Bootloader locked means you can not install custom recovery like TWRP, CWM or custom kernel. You can still root, you can still use odin and you can still install custom rom using either safestrp or flashfire.
Here is the thread explaining how to upgrade stock or rooted stock roms.
The explanation starts from installation of NB1 firmware so that you can easily root the phone by using twolroot.
If you do not care for the root you can start reading from the step 2 "Flash update in stock recovery"
Since you are on OC3, you need OC3 to OC4 and OC4 to OK2 files to get OK2.
help... I want to RMA it
sway8966 said:
Unlocking/exploiting the bootloader for the AT&T is still in process, I think.
Bootloader locked means you can not install custom recovery like TWRP, CWM or custom kernel. You can still root, you can still use odin and you can still install custom rom using either safestrp or flashfire.
Here is the thread explaining how to upgrade stock or rooted stock roms.
The explanation starts from installation of NB1 firmware so that you can easily root the phone by using twolroot.
If you do not care for the root you can start reading from the step 2 "Flash update in stock recovery"
Since you are on OC3, you need OC3 to OC4 and OC4 to OK2 files to get OK2.
Click to expand...
Click to collapse
Everywhere says I need a kitkat rom as base.
My s4 came with 5.0.1 with OC3 and bootloader locked out of the box. I tried some post where says I can flash TWRP and CWM but my phone stucked on bootloops. Then I managed to get back to stock rom and now when I want to turn it on it says " SAMSUNG (and lower on the screen) Custom"
Camera began to fail and I want to return it as RMA but I was looking to reset the flash counter but every post I read is that OC3 bootloader locked users are just doomed.
Do you know a method that I can do for reset that counter?
Camera dont focus anymore and I tried all the posts about safemode, etc.
cybercuate said:
Everywhere says I need a kitkat rom as base.
My s4 came with 5.0.1 with OC3 and bootloader locked out of the box. I tried some post where says I can flash TWRP and CWM but my phone stucked on bootloops. Then I managed to get back to stock rom and now when I want to turn it on it says " SAMSUNG (and lower on the screen) Custom"
Camera began to fail and I want to return it as RMA but I was looking to reset the flash counter but every post I read is that OC3 bootloader locked users are just doomed.
Do you know a method that I can do for reset that counter?
Camera dont focus anymore and I tried all the posts about safemode, etc.
Click to expand...
Click to collapse
Flashing TWRP and CWM is for the AT&T S4 with older bootloader (MDL, MDB). After that two firmware versions the bootloader is locked.
For AT&T S4 the last full firmware released is NB1. After that they released incremental updates via OTA. That is why you need kitkat (NB1) as base.
For NB1, Muniz uploaded two firmwares. One is the stock and the other is rootable stock. Try the stock one and see you still have the custom symbol.
To reset the counter, there is an app calls Triangle away by Chainfire. However, it does not work on AT&T S4 with locked bootloader.
Trying Odin-Stock NB1
sway8966 said:
Unlocking/exploiting the bootloader for the AT&T is still in process, I think.
Bootloader locked means you can not install custom recovery like TWRP, CWM or custom kernel. You can still root, you can still use odin and you can still install custom rom using either safestrp or flashfire.
Here is the thread explaining how to upgrade stock or rooted stock roms.
The explanation starts from installation of NB1 firmware so that you can easily root the phone by using twolroot.
If you do not care for the root you can start reading from the step 2 "Flash update in stock recovery"
Since you are on OC3, you need OC3 to OC4 and OC4 to OK2 files to get OK2.
Click to expand...
Click to collapse
sway8966 said:
Flashing TWRP and CWM is for the AT&T S4 with older bootloader (MDL, MDB). After that two firmware versions the bootloader is locked.
For AT&T S4 the last full firmware released is NB1. After that they released incremental updates via OTA. That is why you need kitkat (NB1) as base.
For NB1, Muniz uploaded two firmwares. One is the stock and the other is rootable stock. Try the stock one and see you still have the custom symbol.
To reset the counter, there is an app calls Triangle away by Chainfire. However, it does not work on AT&T S4 with locked bootloader.
Click to expand...
Click to collapse
Thanks. I'll try Odin it with the stock rom from your link. I'll post news here when it finish flashing
1st part - Success
I'm on 4.4.2 NB1, flash counter back to normal but still bootloader locked
Now I have to go back to OC3 to RMA it.
OTA does nothing, smartswitch shows no updates neither kies.
I'll have to Odin it back to OC3
Can I have some help?
And Success. I'm back on stock OC3 no root.
time to RMA
- camera still doesn't focus
- boot screen is back to normal but when in odin mode the counter shows 0x1
- sometimes shows "sim card could not be detected" or similar messages and force me to restart the phone (just happend 2 times until now, never happend before)
I followed this thread
http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642
Post 2
Thanks to sway8966
Lately, I wanted to root my GS4 (it surely wasn't an AT&T one, bought it in Russia, there is no AT&T). So, motochopper fails, CF-Auto-Root fails, everything fails! I am stuck at 4.4.2 and there is no OTA upgrade. Download mode says "MODEL NUMBER: SGH-I337", but in the "About phone" menu it is clearly stated that model number is "GT-I9500" and build number is "KOT49H.I9500XXUFNB7". Even the baseband version starts with "I9500". All the hacks I am seeing on the Internet (such as Loki) for unlocking bootloader fail, saying that my phone model is not supported. Heimdall and Odin fail to flash anything and the red text appears in the download mode: "SECURE MAGICODE CHECK FAIL". What my model is and what do I DO? I want to root it and install some decent recovery and CWM ROM.
Please, ask any questions you like and help me)
The model number in download mode is the right one. Once the bootloader on the i337 is locked, it cannot be unlocked.
A locked bootloader means cwm and twrp cannot be installed.
audit13 said:
The model number in download mode is the right one. Once the bootloader on the i337 is locked, it cannot be unlocked.
A locked bootloader means cwm and twrp cannot be installed.
Click to expand...
Click to collapse
Why can't it be unlocked? I've seen so many guides and tools to do it. The problem is that they don't work and I don't even know my true build version to figure smth out. Why doesn't it even root like normal I337 should do? Also it doensn't upgrade to lollipop like normal I337 should.
The bootloader is locked on the i337, just like it is on other at&t phones, with no way to unlock it. An s4 bounty on XDA for finding an unlock method remains unclaimed: http://forum.xda-developers.com/showthread.php?t=2257620
The phone is an i337 and can only run stock i337 roms or customs based off a stock rom.
Safe strap is the only custom recovery available for a locked bootloader.
audit13 said:
The bootloader is locked on the i337, just like it is on other at&t phones, with no way to unlock it. An s4 bounty on XDA for finding an unlock method remains unclaimed: http://forum.xda-developers.com/showthread.php?t=2257620
The phone is an i337 and can only run stock i337 roms or customs based off a stock rom.
Safe strap is the only custom recovery available for a locked bootloader.
Click to expand...
Click to collapse
So, ok. We managed to confirm it is a SGH-I337. But what about Loki tool? It can install CWM recovery, but does not work on my device? Also, I ask one more time, how can I know what the real build number is? And how to root? All SGH-I337 should root with motochopper but mine doesn't. What can I do about this?
Cwm and twrp cannot work on the phone. I have never seen a post where someone has ever had it work with a locked bootloader.
I'm not sure but motochopper may not work with every bootloader and every rom. Reading through this forum, I don't think I remember seeing motochopper mentioned.
You'll have to confirm the bootloader and rom in the phone and search through the various rooting threads. I don't have access to the i337, only the i337m as I am in Canada.