rogers signal problem after kitkat/fail odin - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

hey so ive been doing some research. my rom currently is cm 4.4 kitkat for can variant. the problem is i have 1 bar with lte, ive read that i needed to update my modem with odin. i tried this with the latest file found in the threads and made sure it was for canada. this is the error i got. also i tried flashing my phone with dandroid 4.4 and i actually get no service at all, played with apn settings and nothing. any help here would be awsome.
New edit..
So I figured out what I did wrong in the previous post. But now I have a new question. I have tried to flash my modem to to the most current using Odin
On the computer it said succsssful but the phone said downloading, for maybe like 4 minutes and I did a battery pull. Tried 3 different Roms LTE does not work all. But 3g does any help would be nice
new edit went back on android 4.2.2 and lte works fine. before i flashed the modem i had bad reception with lte on kitkat but now with the current I337MVLUEMK6 baseband i wont even go on lte. when i try to use mobile odin it says the device is not compatible and it asks to make a backup. Seems like lots of canadians are having this problem anyone, anyone got any ideas? (tried 3 different 4.4 roms still no lte)
message i got <ID:0/003> Removed!!
<ID:0/003> Added!!
<ID:0/003> Removed!!
<ID:0/003> Added!!
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> modem.bin
<ID:0/003> NAND Write Start!!
<ID:0/003> Transmission Complete..
<ID:0/003> Now Writing.. Please wait about 2 minutes
<ID:0/003> Receive Response from boot-loader
<ID:0/003> FAIL! (Auth)
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/003> Removed!!

I have the same error message when trying to flash modem.
And if I flash modem and hlos with mobile odin I have no sound.
I never had issues flashing modem or hlos
Updated drivers and still no go with odin. Any help im still on 4.2.2 mg1
Sent from my SGH-I337M using xda app-developers app

bump!

I received the an error in odin as well when trying to flash I337MVLUEMK6.
FAIL! (Auth) along with "secure check fail: mdm"
I was able to flash it successfully with mobile odin which seems to perform the flash without using the device's bootloader (original odin)
In any case, I too have no LTE. Is there anyone here with SGH-i337m on 4.4 with working LTE?

Mine works perfectly. I'm on kitkat 4.4 rom
Samsung galaxy s4 Canadian i337m

Well, I solved my problem. For some reason the default APN was set to "rogers-core-appl1.apn" switching to the LTE apn, "ltemobile.apn" fixed all of my issues so far.

Related

[Q] I9505 with radio issues

Hi,
Since I dont have 10 posts and cant post on the Android Development forum I guess I need to post here instead. I flashed my I9505 with Android 4.3 v.2.2 of this firmware http://forum.xda-developers.com/showthread.php?t=2341026 , which worked awesome except for a couple of force close and reboots. Perfect LTE and HSPA. I recently flashed it with the updated version Android 4.4 v.2. Everything works awesome except LTE or 3G, when trying to use those 2 the phone does not connect to a tower, doing a forced scan and connect works for a very short while and I get kicked off. Forcing 2G/Edge works perfect though!
1. When I flashed 4.4 V2, is it possible that it may somehow changed my radio firmware or can this only be done via odin? (I used philz to flash to 4.4 v2 without doing a full wipe, I wanted to keep settings/apps etc)
2. When checking here http://www.sammobile.com/firmwares/2/ under I9505 and my country South Africa(Vodafone/Vodacom), the radio version on the site and on my phone correlates
GT-I9505 Galaxy S 4 LTE
BASEBAND -> MODEM: I9505XXUBMGA
What may have caused the phone to loose HSPA and LTE connectivity?
Thanks in advance for the replies.
Ne3M said:
Hi,
Since I dont have 10 posts and cant post on the Android Development forum I guess I need to post here instead. I flashed my I9505 with Android 4.3 v.2.2 of this firmware http://forum.xda-developers.com/showthread.php?t=2341026 , which worked awesome except for a couple of force close and reboots. Perfect LTE and HSPA. I recently flashed it with the updated version Android 4.4 v.2. Everything works awesome except LTE or 3G, when trying to use those 2 the phone does not connect to a tower, doing a forced scan and connect works for a very short while and I get kicked off. Forcing 2G/Edge works perfect though!
1. When I flashed 4.4 V2, is it possible that it may somehow changed my radio firmware or can this only be done via odin? (I used philz to flash to 4.4 v2 without doing a full wipe, I wanted to keep settings/apps etc)
2. When checking here http://www.sammobile.com/firmwares/2/ under I9505 and my country South Africa(Vodafone/Vodacom), the radio version on the site and on my phone correlates
GT-I9505 Galaxy S 4 LTE
BASEBAND -> MODEM: I9505XXUBMGA
What may have caused the phone to loose HSPA and LTE connectivity?
Thanks in advance for the replies.
Click to expand...
Click to collapse
Please use the search button next time , because this has been answered so many times. and if you have any problem please post it in here.http://forum.xda-developers.com/galaxy-s4/help and in order to fix your problem you need to update your modem sir. have a nice day.
Edit: Mods please move this thread in a right section . thanks
Repulsa said:
Please use the search button next time , because this has been answered so many times. and if you have any problem please post it in here.http://forum.xda-developers.com/galaxy-s4/help and in order to fix your problem you need to update your modem sir. have a nice day.
Edit: Mods please move this thread in a right section . thanks
Click to expand...
Click to collapse
Ok, tried flashing the modem with Odin 3.04 and fails with I9505_XXUBMH1_MODEM.tar.md5 which is an upgrade to I9505XXUBMGA?! When I google how to upload the modem firmware there are many variants. What is the CORRECT method to upload a modem to a i9505 using Odin? I dont want to brick my phone.
Ne3M said:
Ok, tried flashing the modem with Odin 3.04 and fails with I9505_XXUBMH1_MODEM.tar.md5 which is an upgrade to I9505XXUBMGA?! When I google how to upload the modem firmware there are many variants. What is the CORRECT method to upload a modem to a i9505 using Odin? I dont want to brick my phone.
Click to expand...
Click to collapse
Bro download and unzip this file http://www.mediafire.com/download/48r0rgqv25s8968/GSM_Modem_XXUEMKF_and_LTE_Modem_XXUBMH1.rar then flash it with odin by selecting phone. Let me know if that fix your problem
It hangs on setup connections.
<ID:0/005> Added!!
<ID:0/005> Odin v.3 engine (ID:5)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Complete(Write) operation failed.
<ID:0/005> Added!!
<OSM> All threads completed. (succeed 0 / failed 1)
Again I ask what is the exact/correct procedure to do a flash for I9505? I assume I should extract the RAR first to a .TAR which I did and then what?
Ne3M said:
It hangs on setup connections.
<ID:0/005> Added!!
<ID:0/005> Odin v.3 engine (ID:5)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Complete(Write) operation failed.
<ID:0/005> Added!!
<OSM> All threads completed. (succeed 0 / failed 1)
Again I ask what is the exact/correct procedure to do a flash for I9505? I assume I should extract the RAR first to a .TAR which I did and then what?
Click to expand...
Click to collapse
You have to extract it and then you open odin and select phone on odin and find the file you extract then on your phone power off manually and wait 5 sec and hold power+volume down in order to go to download mode and connect the cable andpress start in odin . done/
Repulsa said:
You have to extract it and then you open odin and select phone on odin and find the file you extract then on your phone power off manually and wait 5 sec and hold power+volume down in order to go to download mode and connect the cable andpress start in odin . done/
Click to expand...
Click to collapse
<ID:0/005> Added!!
<ID:0/005> Odin v.3 engine (ID:5)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Can't open the serial(COM) port.
<ID:0/006> Added!!
<OSM> All threads completed. (succeed 0 / failed 1)
And I get this error if I try again:
<ID:0/006> Odin v.3 engine (ID:6)..
<ID:0/006> File analysis..
<ID:0/006> SetupConnection..
<ID:0/006> Initialzation..
<ID:0/006> Get PIT for mapping..
<ID:0/006> Firmware update start..
<ID:0/006> NON-HLOS.bin
<ID:0/006> Complete(Write) operation failed.
<ID:0/006> Added!!
<OSM> All threads completed. (succeed 0 / failed 1)
Still not working
It says write protect enable on the phone. Is this my problem? and how do disable it?
Ne3M said:
<ID:0/005> Added!!
<ID:0/005> Odin v.3 engine (ID:5)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Can't open the serial(COM) port.
<ID:0/006> Added!!
<OSM> All threads completed. (succeed 0 / failed 1)
And I get this error if I try again:
<ID:0/006> Odin v.3 engine (ID:6)..
<ID:0/006> File analysis..
<ID:0/006> SetupConnection..
<ID:0/006> Initialzation..
<ID:0/006> Get PIT for mapping..
<ID:0/006> Firmware update start..
<ID:0/006> NON-HLOS.bin
<ID:0/006> Complete(Write) operation failed.
<ID:0/006> Added!!
<OSM> All threads completed. (succeed 0 / failed 1)
Still not working
It says write protect enable on the phone. Is this my problem? and how do disable it?
Click to expand...
Click to collapse
I just flashed the file via odin then select PHONE and it works alright here and i dont understand why it doesnt work for you when someone been using that file. try another file from here http://forum.xda-developers.com/showthread.php?t=2192025
Repulsa said:
I just flashed the file via odin then select PHONE and it works alright here and i dont understand why it doesnt work for you when someone been using that file. try another file from here http://forum.xda-developers.com/showthread.php?t=2192025
Click to expand...
Click to collapse
That is where I got my first files from that did not work as well...
edit: after numerous attemps I got it to work. Yay!
Ne3M said:
That is where I got my first files from that did not work as well...
edit: after numerous attemps I got it to work. Yay!
Click to expand...
Click to collapse
glad it works try to update your samsung driver prolly this is the one that causing it . but its not that bad to give it a try have a nice day
Ne3M said:
That is where I got my first files from that did not work as well...
edit: after numerous attemps I got it to work. Yay!
Click to expand...
Click to collapse
Edit: Even with the new radio. Same problems. 3g & LTE not working. 2G works flawless....
Hello,
You are tried from recovery factory resset and clean dalvik?
Sent from my GT-I9505 using Tapatalk 2
bogdan109 said:
Hello,
You are tried from recovery factory resset and clean dalvik?
Sent from my GT-I9505 using Tapatalk 2
Click to expand...
Click to collapse
Same problem and lost all data on my phone now:crying:
Edit:
This modem I9505XXUEMKE-MODEM seems to work. From the thread it is a ROM issue, I hope I now have enough posts to post on the developer section. Other people had the same complaints, I seemed to be one of the first.
ne3m said:
same problem and lost all data on my phone now:crying:
Edit:
This modem i9505xxuemke-modem seems to work. From the thread it is a rom issue, i hope i now have enough posts to post on the developer section. Other people had the same complaints, i seemed to be one of the first.
Click to expand...
Click to collapse
did u find a fix?
xxuemke modem didnt work for me
I flashed with latest I9505 firmware from Sammobile website. Updated Radio, bootloader and camera firmware automatically! Then you can flash whatever you want. You must also check that the modem you use is compatible with your country.

[Q] Note 2 Stuck in Bootlop, Failing to flash root in Odin

Hi there,
I'm trying to fix my sister's Note 2. It is stuck in bootloop. I've rooted my GS2 without any problems, but odin is failing with the Note 2. Here's what I get:
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> cache.img
<ID:0/003> NAND Write Start!!
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Some more info: trying to flash "cwm6-root-note2.tar" as the PDA file, and also unsure whether the phone currently runs on stock 4.2 or 4.3, im unable to check since it's stuck in bootloop. I realize there might be a whole new problem if its on 4.3, was just wondering what my best option is right now. I've done some reading here on XDA and can't figure out whats the best thing to do.
Any input is greatly appreciated!
Sorry wrong forum, you're in the galaxy s4 forum...try reposting over in the Note 2 forums
Sent from my SAMSUNG-SGH-I337 using Tapatalk

[Q] How can I SIM unlock my Canadian S4 ?

I have 3 i337m running 4.3 original firmware.One is Bell, 1 Rogers, 1 Telus.
I've tried all the methods I could find that include downgrading, rooting etc. I cannot seem to get access to the UMTS menu.
Is there any method that works ?
Anthony77777 said:
I have 3 i337m running 4.3 original firmware.One is Bell, 1 Rogers, 1 Telus.
I've tried all the methods I could find that include downgrading, rooting etc. I cannot seem to get access to the UMTS menu.
Is there any method that works ?
Click to expand...
Click to collapse
Everything Ihave seen, the service menu is hidden in 4.3... I never was able to get to it after the update... I did unlock my s3 before 4.3 but my s4 never got it done... best you can do now is either buy an unlock code on the net or take it to one of the mall kiosks... lots of the guys that sell cases unlock phones too for around $20
Anthony77777 said:
I have 3 i337m running 4.3 original firmware.One is Bell, 1 Rogers, 1 Telus.
I've tried all the methods I could find that include downgrading, rooting etc. I cannot seem to get access to the UMTS menu.
Is there any method that works ?
Click to expand...
Click to collapse
Did you try specifically flashing a modem from an older version where it had the service menu? (like the old 4.2.2 modem) and did you try flashing an older one and using RegionLock Away?
DeadlySin9 said:
Did you try specifically flashing a modem from an older version where it had the service menu? (like the old 4.2.2 modem) and did you try flashing an older one and using RegionLock Away?
Click to expand...
Click to collapse
+1
Also, the SIM unlock trick does not seem to work on the i337M with the newer MK6 modem. Heck, I even tried it on stock right when I got mine (which was still on MDJ at the time), and it didn't work. But results vary, apparently. Try downgrading to 4.2.2 stock like DeadlySin9 suggested, and see if that will work. If it doesn't, there should be an app out there that can access the hidden Service Menus; I just can't remember the name of it at the moment.
DeadlySin9 said:
Did you try specifically flashing a modem from an older version where it had the service menu? (like the old 4.2.2 modem) and did you try flashing an older one and using RegionLock Away?
Click to expand...
Click to collapse
The device does not allow downgrades to 4.2.2 for any carrier firmware. I tried region lock away on 4.3 with no success.
Anthony77777 said:
The device does not allow downgrades to 4.2.2 for any carrier firmware. I tried region lock away on 4.3 with no success.
Click to expand...
Click to collapse
Your not downgrading the firmware, just the modem. You can flash it in your custom recovery
DeadlySin9 said:
Did you try specifically flashing a modem from an older version where it had the service menu? (like the old 4.2.2 modem) and did you try flashing an older one and using RegionLock Away?
Click to expand...
Click to collapse
jd1639 said:
Your not downgrading the firmware, just the modem. You can flash it in your custom recovery
Click to expand...
Click to collapse
How can I downgrade the modem ?
Anthony77777 said:
How can I downgrade the modem ?
Click to expand...
Click to collapse
Look for the zip file in the development forum and flash that in your recovery.
Here
http://forum.xda-developers.com/showthread.php?p=42589278
jd1639 said:
Look for the zip file in the development forum and flash that in your recovery.
Here
http://forum.xda-developers.com/showthread.php?p=42589278
Click to expand...
Click to collapse
The modem downgrade fails with odin.
<ID:0/003> Added!!
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> modem.bin
<ID:0/003> NAND Write Start!!
<ID:0/003> Transmission Complete..
<ID:0/003> Now Writing.. Please wait about 2 minutes
<ID:0/003> Receive Response from boot-loader
<ID:0/003> FAIL! (Auth)
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/003> Removed!!
<ID:0/004> Added!!
<ID:0/004> Removed!!
<ID:0/004> Added!!
Anthony77777 said:
The modem downgrade fails with odin.
<ID:0/003> Added!!
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> modem.bin
<ID:0/003> NAND Write Start!!
<ID:0/003> Transmission Complete..
<ID:0/003> Now Writing.. Please wait about 2 minutes
<ID:0/003> Receive Response from boot-loader
<ID:0/003> FAIL! (Auth)
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/003> Removed!!
<ID:0/004> Added!!
<ID:0/004> Removed!!
<ID:0/004> Added!!
Click to expand...
Click to collapse
Do you have a custom recovery or safestrap? I'd flash the zip on there
jd1639 said:
Do you have a custom recovery or safestrap? I'd flash the zip on there
Click to expand...
Click to collapse
I installed the .zip with cwm recovery but when I checked my modem (baseband) it was mk6 modem, so it was unchanged.
Anthony77777 said:
I installed the .zip with cwm recovery but when I checked my modem (baseband) it was mk6 modem, so it was unchanged.
Click to expand...
Click to collapse
I've never been able to get this to work either. Also related, unlocking will remove LTE, permanently.
azuziel said:
I've never been able to get this to work either. Also related, unlocking will remove LTE, permanently.
Click to expand...
Click to collapse
Unlocking shouldn't remove LTE. All you have to do is make sure to correct the APN, as it might change, and flash back to your newer modem afterwards.
Are you sure your ODIN drivers are set up right? Try reinstalling/manually updating the drivers. They never like to work very well. You could also try Mobile ODIN since you have an unlocked bootloader.

[Q] Having issues booting up my N9005 after a failed 5.0 Official Lollipop Update

Hello, I have tried updating my N9005 to the latest firmware 5.0 provided on Sammobile. After attempting to flash it via ODIN, the following error occurs:
<ID:0/003> Added!!
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> sbl1.mbn
<ID:0/003> NAND Write Start!!
<ID:0/003> aboot.mbn
<ID:0/003> rpm.mbn
<ID:0/003> tz.mbn
<ID:0/003> sdi.mbn
<ID:0/003> NON-HLOS.bin
<ID:0/003> boot.img
<ID:0/003> recovery.img
<ID:0/003> system.img.ext4
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/003> Removed!!
<ID:0/003> Added!!
Retried this step several times, but i have received the same error.
Following a few instructions found on the XDA forums, I tried using PIT file in order to re-partition.
The phone now reboots but will not go past the first boot screen "Samsung Galaxy Note3 N9005".
I tried pulling out the battery and performing a factory reset (along with wiping caches), but the situation is still the same after rebooting the device.
Also I have noticed that upon accessing "recovery mode", a error stating " Failed to mount /system (Invalid argument)" error is displayed.
I'm pretty new at upgrading phones and I've bought this phone recently and was unaware of the consequences of flashing ROMS via Odin.
The initial fw. on the device was 4.4.2 Official Samsung. Is there any way that I can make the phone reboot normally with fw. 4.4.2? Or any other firmware for that matter?
Thanks in advance.
AndreiRonaldo said:
Thanks in advance.
Click to expand...
Click to collapse
Reflash the firmware again now via ODIN without the .pit file.
Joku1981 said:
Reflash the firmware again now via ODIN without the .pit file.
Click to expand...
Click to collapse
I've tried that several times without success. But the issue was fixed. Apparently the PIT file I was using did not match the ROM i was flashing. I just had to find a matching pair of both ROM and PIT and now I've successfully booted my device. Hope that this thread might help others in need for answers to similar questions.
Alright, this is taking alot more than i had expected, after finally managing to boot my device, I've noticed that flashed rom behaves awfully, my phone is stuttering, and i have no sound. Also, my IMEI is displayed as "Unknown" in the "Status'" section of the device's Settings. Any suggestion on how to fix this issue?
flash the stock the rom you have before

Galaxy S4 9505 odin problem.

Hello i have a problem with flashing anything with odin on my Samsung Galaxy S4 9505.
Whenever i try flashing ROM or recovery or whatever, it says this:
<ID:0/003> Added!!
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Set PIT file..
<ID:0/003> DO NOT TURN OFF TARGET!!
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Also when i try to boot my phone normally or go to the recovery it says this:
"Firmware upgrade encountered an issue.Please select recovery mode in Kies & try again."
I've downloaded Kies and tried to recover it but it says:
'GT-I9505' does not support initializing.
What i've tried so far:
flashing pit file with and without the rom.Tried multiple odin versions.Tried multiple rom versions.Tried flashing recovery CWM and TWRP.
Also the error i got "Firmware upgrade encountered an issue.Please select recovery mode in Kies & try again." was after i tried flashing official rom 4.4.2 downloaded form Sammobile(first i installed TWRP recovery wiped system data dalvic cache and booted in download mode ). I was previously using latest Android 5.0.1 official.
Is there any hope of unbricking my device?
Have you tried reinstalling your ADB driver?
Honestly, kies sucks. You don't need kies to have ADB driver installed. There is a package that install samsung drivers seperately.
Once you upgraded to a lollipop bootloader you can't just simply go back to a kitkat one. Samsung doesn't allow that.
Try using the back USB ports on your PC. Trust me, it can do wonders.
You could also try Heimdall.
well i think i've advanced abit now i get this:
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Set PIT file..
<ID:0/003> DO NOT TURN OFF TARGET!!
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> SingleDownload.
<ID:0/003> aboot.mbn
<ID:0/003> NAND Write Start!!
<ID:0/003> sbl1.mbn
<ID:0/003> sbl2.mbn
<ID:0/003> sbl3.mbn
<ID:0/003> rpm.mbn
<ID:0/003> tz.mbn
<ID:0/003> boot.img
<ID:0/003> recovery.img
<ID:0/003> persdata.img.ext4
<ID:0/003> system.img.ext4
<ID:0/003> __XmitData_Write
<ID:0/003> Complete(Write) operation failed.
tried to reinstall the ADB driver and using the back ports.
Also is there any way to flash Official Samsung ROM true a custom recovery?Cuz i just managet to install TWRP recovery on it.
hollydamn i just tried flashing true odin Android 5.0.1 and it worked.But the wifi isn't working it just not letting me turn it on.
Why don't people understand when I say YOU CANNOT DOWNGRADE ?
i didn't downgrade it now i've installed 5.0.1.
simeon112 said:
i didn't downgrade it now i've installed 5.0.1.
Click to expand...
Click to collapse
Yes, but you tried to, even after I explicitly said you can't.
Your WiFi issues might be related to modem/kernel.
You could try flashing a different firmware.
I tied a differed one the wifi works now.Only when i turn on the mobile data and try to go to a random site it says Forbidden.I think i need to wait my carrier to send me the setting for the net...
Anyway THANK YOU very much!! <3
I have an i337m (North American version of s4) and you can downgrade from stock 5.01 to stock 4.4.2. I did this on 3 phones in order to use regionlockaway to sim unlock all three phones. Everything worked, including data and wifi.
I'd like to try a downgrade with a i9505 for curiosity sake but that particular model is not sold by carriers in Canada.

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