Wifi going crazy. Need some help. - Galaxy Note II Q&A, Help & Troubleshooting

I know that a lot of people are gonna say to read several other similar threads, but having gone through all of that I still don't get it.
THE SITUATION:
My Samsung Galaxy Note 2 GT-n7100 is :
1) Stock Android 4.1.2 Rooted
2) Modified with Xposed
3) TWRP (Latest, updated regularly)
4) Never been updated ever. Like never ever.
THE A-HOLE PROBLEM:
I honestly never bothered to flash anything on my note 2, since I have all the stuffs working perfectly as it is. Until the god-damn son of a gun WIFI started acting like a sissy she-dog. The problem is that the WIFI keeps on disconnecting itself and reconnecting itself automatically, wierdly enough, only when an app tries to access it. I hope everyone can understand how horrible it is, especially when you are talking dirty to your girlfriend over a whatsapp call and it keeps dropping, just like my errection.
All jokes aside, this has been driving me mad. In-case you need the details, here is what I did to solve my annoying problem :
1) Factory reset.
2) Reboot.
3) Phone works fine. Wifi works fine. Does not disconnect or reconnect. Seems like problem solved.
Then, the camel-crap happens.
4) Open Google play store, it updates. Play services updated. Need it to access the google services.
5) Open any internet enabled app.
6) Wifi switches on/off automatcally.
7) I tear my gonads off.
Side-Note : I also turned off the wifi power saving mode using *#0011#. I also made all the necessary changes in the wifi settings menu.
THE QUESTION:
Since I have never updated, my bootloader, etc are still stock. I read a thread that if I dont update the bootloader, future flashing will not work. I have no earthly clue so as to what the heck am I supposed to do.
I need some simple directions, to the point if possible. I have taken a full nandroid backup, just to be safe.
I think only a CFW now can solve this weird problem of mine. So, any help will be appreciated.

Newer roms require up-to-date bootloaders and modems. The easiest way to update both would be to flash the latest stock ROM from sammobile.com in Odin. Make sure you back up your data before flashing.

audit13 said:
Newer roms require up-to-date bootloaders and modems. The easiest way to update both would be to flash the latest stock ROM from sammobile.com in Odin. Make sure you back up your data before flashing.
Click to expand...
Click to collapse
Okay. But, what about the filthy Knox ? Also, what about my root? Also, what about Knox ? Hmm, I wrote knox twice. Now, thrice.
Simply put, knox is poo. I dont want that. So, how do I get the latest knick-knacks without knox. Is it possible to flash the latest bootloader, modem etc.
Sorry for using "noobish". I hate that language too, but when it comes to 40k phones, I get a bit nervous. Hope you can help. Or someone else.
Regards,
TheBasterd.

If you flash the latest bootloader, you'll get Knox.
Personally, I have never found Knox to interfere with flashing custom ROMs.

audit13 said:
If you flash the latest bootloader, you'll get Knox.
Personally, I have never found Knox to interfere with flashing custom ROMs.
Click to expand...
Click to collapse
So, here is the thing. If I go here : http://forum.xda-developers.com/galaxy-note-2/development/rom-resurrection-remix-5-6-0-t3278709 and downloaded the ROM, did all the stuff the ROM maker says and flash it.
Without the latest bootloader and other poo, you are saying that my flash will be unsuccessful ?

That ROM will probably need an updated bootloader and modem to connect to a cell network, detect a sim, and wifi.
If you want to, you can flash the ROM and see what happens.

audit13 said:
That ROM will probably need an updated bootloader and modem to connect to a cell network, detect a sim, and wifi.
If you want to, you can flash the ROM and see what happens.
Click to expand...
Click to collapse
Hey audit, thanks for sticking around and helping me bro. I really appreciate that.
So, I took your advice and have put the ROM from Sammobile.com for the latest bootloader and the modem stuffs.
Hope that will work. Also, when I flash the ROm, wont I loose my root ?

Yes, you'll lose root but it doesn't matter if you don't intend to use a stock ROM.

audit13 said:
Yes, you'll lose root but it doesn't matter if you don't intend to use a stock ROM.
Click to expand...
Click to collapse
Allright ! That was easy. Done and done. Thanks audit. (Thanks hitted)
Now, I will ensure a painless future for all noobs like me by making a tutorial. This thread can be marked as fixed. Thanks audiot bro.

It's great that you resolved the issue.
We're all here to help and learn from each other.

Related

no connection to the internet? touchwiz based custom roms?

first thing, I've been flashing a number of rom's to my phone to find the right one. only a couple apparently actually have a connection to the data. the rest won't connect to the internet without a wifi connection. they will still make phone calls and send/receive text messages, but they will not connect to the internet using data. I don't know what's going on with it, honestly.
and the other thing, do touchwiz based custom roms exist for the i747? preferably ones that are either 4.3 or 4.4 based.
sorry, I'm still new to the whole thing, and I'm trying to get my phone in stable, working order. I have been searching a lot and trying a number of different things, though.
also, 4.3 is avaliable as an OTA upgrade...but as I understand it, if I do that, I'd never be able to downgrade past that, would I? would that mean I'd never be able to root my phone and install custom firmware again?
hachikid said:
first thing, I've been flashing a number of rom's to my phone to find the right one. only a couple apparently actually have a connection to the data. the rest won't connect to the internet without a wifi connection. they will still make phone calls and send/receive text messages, but they will not connect to the internet using data. I don't know what's going on with it, honestly.
and the other thing, do touchwiz based custom roms exist for the i747? preferably ones that are either 4.3 or 4.4 based.
sorry, I'm still new to the whole thing, and I'm trying to get my phone in stable, working order. I have been searching a lot and trying a number of different things, though.
also, 4.3 is avaliable as an OTA upgrade...but as I understand it, if I do that, I'd never be able to downgrade past that, would I? would that mean I'd never be able to root my phone and install custom firmware again?
Click to expand...
Click to collapse
Now are you on a custum rom?
if yes, mabye that the custum rom that you flashed on your phone it was a beta version and that Mobile Data is not avaible on this rom.
Or mabye that mobile data is not enable on your phone.
Mabye that you jusy have any mb/gb left for your month.
as you Said : I'm still new to the whole thing, and I'm trying to get my phone in stable, working order. I have been searching a lot and trying a number of different things, though.
What i suggest you is first of all to keep your phone unrooted you are saying that you are trying to get your phone stable. And when your phone is rooted on a custum ROM it may be not stable.
Yes 4.3 is avaible throught the air and through Samsung KIES 3.
the new Samsung 4.3 Firmware has a new Bootloader.
After upgrading a bootloader you CANT revert it. You cant downgrade the bootloader after.
Also the new Android 4.3 from samsun has a new security that they named : KNOX
This new Security software that EVERYONE HATE make rooting,flashing a LOT harder.
If you update to 4.3 you WONT be able to downgrade to 4.2.1 or 4.1.1.
iF you try this will result to a Soft-Bricked Device.
On 4.3 you are still able to root the Galaxy s3 I747 but DONT try to downgrade through Odin YOU WILL BRICK YOUR DEVICE.
Hope that i help you. Any other question? Just ask!
Just to add to Killers post, one reason you may not be getting data is because you didn't follow instructions when installing the custom rom. For instance, with SRx3 rom, you have to flash a new modem and bootloader, not doing so generally leads to data issues. You may also want to familiarize with the proper apn settings and see if that's the culprit. Hope this helps.

[Q] Need wifi help AT&T S3

Ok, so I've had wifi issues for awhile with this thing, but apparently the 4.3 update sent it over the edge. (I just updated it last week, since I was out of the country when the update issued).
The issue is, I cannot connect to any wifi, other than my home. Before the update, I could connect to non-home wifi only through various router setting changes, that required admin access to the router. After the update, no matter what I've tried with regards to routers, my home router is the only one I can connect to, and the signal strength is pretty bad on my phone, while it shows very strongly for any other device.
I've tried all the suggestions in just about every thread I could find. I've done several factory resets, I've tried the *#0011# thing. I've tried using static IP addresses. But the phone will do one of two things. After I click connect, after selecting a network, it will say Saved. Or it will try to connect and then go back to Saved, or eventually give the Authentication error.
I'm not 100% familiar with how android is setup, but is there a specific file that I could try to install that might affect this? (Like a driver)
Would replacing the antenna be helpful, or maybe the chip on the mb? Or are those options too extreme?
Any ideas are appreciated.
Nobody has any ideas for me?
Please, I'll try anything.
Still looking for help. Thanks!
Did you try re flashing the firmware? Might be a bug in the software. You'll lose all your data but its worth a shot. I've seen a similar issue like this before on the S III and that took care of the problem.
Brian9391 said:
Did you try re flashing the firmware? Might be a bug in the software. You'll lose all your data but its worth a shot. I've seen a similar issue like this before on the S III and that took care of the problem.
Click to expand...
Click to collapse
Do I use odin to reflash....it's basically like installing a rom, right?
NwFl Griz said:
Do I use odin to reflash....it's basically like installing a rom, right?
Click to expand...
Click to collapse
Yes, you will use Odin to complete this process.
Few things you should consider though, by doing this it will completely reset your phone to a point as if you just un-boxed it (or a factory reset). I am uncertain about the fact that it may hinder you the ability to receive further OTA updates. Like i said I don't know exactly on that one but that will most likely be stated in a thread that you receive the firmware from. Also, this may be a good opportunity for you to root your phone if it was not previously. Doing this could be as simple as downloading one file vs. another to use in Odin. The choice is yours as there are threads regarding both Stock Rooted and Stock non rooted firmwares. Another thing, consider which version you want. Im guessing 4.3? I was once told going down a version on android (i.e. 4.4 to 4.2) could brick a device... also unclear on that. try doing some research if you wish.
If you have the AT&T 4.3 bootloader on your phone, do not use Odin to try and flash any stock ROMs as this may brick your phone. The 4.3 bootloader cannot be downgraded and attempts to do so with probably brick your phone.
Boot into download mode and tell us what it says on the download screen.
audit13 said:
If you have the AT&T 4.3 bootloader on your phone, do not use Odin to try and flash any stock ROMs as this may brick your phone. The 4.3 bootloader cannot be downgraded and attempts to do so with probably brick your phone.
Boot into download mode and tell us what it says on the download screen.
Click to expand...
Click to collapse
I have rooted this device, so when i boot into download mode, I get the android guy with the words "downloading do not turn off target" underneath him. In the top right it says:
Odin mode
product name: SGH-i747
custom binary download: Yes (2 counts)
current binary: custom
system status: custom
qualcomm secureboot: enable
warranty bit: 1
bootloader rp swrev:2
audit13 said:
If you have the AT&T 4.3 bootloader on your phone, do not use Odin to try and flash any stock ROMs as this may brick your phone. The 4.3 bootloader cannot be downgraded and attempts to do so with probably brick your phone.
Boot into download mode and tell us what it says on the download screen.
Click to expand...
Click to collapse
I replied above...still waiting to ensure I don't brick this thing.

Second Hand Note II, cannot get cellular data

I apologize if i am not as clear in this post as I need to be. My dad tried to root his note 2 sgh i371 using odin but said that once he did this, he was unable to access the internet outside of connecting to wifi, he could not get any cellular data. Because of this issue, he tried to then un-root his phone by flashing 4.1.2 stock rom. Unfortunately, the issue of not being able to get cellular data persists. In his frustration, my dad bought a note 3 and gave his note 2 to me saying that if I could fix it I could keep it. This is my first android and I would like to make it my primary phone if possible. what I would like to simply to reset the phone to factory default settings by flashing the latest stock rom for the phone. I have Odin, I was hoping that someone could tell me where I could get the latest stock rom and, if they believed that flashing it would fix the cellular data issue. I do not believe my dad made a backup at all. Thank you in advance.
GreatGrizzwald said:
I apologize if i am not as clear in this post as I need to be. My dad tried to root his note 2 sgh i371 using odin but said that once he did this, he was unable to access the internet outside of connecting to wifi, he could not get any cellular data. Because of this issue, he tried to then un-root his phone by flashing 4.1.2 stock rom. Unfortunately, the issue of not being able to get cellular data persists. In his frustration, my dad bought a note 3 and gave his note 2 to me saying that if I could fix it I could keep it. This is my first android and I would like to make it my primary phone if possible. what I would like to simply to reset the phone to factory default settings by flashing the latest stock rom for the phone. I have Odin, I was hoping that someone could tell me where I could get the latest stock rom and, if they believed that flashing it would fix the cellular data issue. I do not believe my dad made a backup at all. Thank you in advance.
Click to expand...
Click to collapse
Sammobile has all the stock firmwares for our phones, check there. Also check in about phone to see what it says, if it says Baseband unknown, then the EFS folder (and subsequently IMEI #, etc) have been corrupted. It's possible flashing the latest stock firmware will fix it (it includes a new modem and all), so try that first.
http://www.sammobile.com/
absinthesummer said:
Sammobile has all the stock firmwares for our phones, check there. Also check in about phone to see what it says, if it says Baseband unknown, then the EFS folder (and subsequently IMEI #, etc) have been corrupted. It's possible flashing the latest stock firmware will fix it (it includes a new modem and all), so try that first.
Thank you very much for the advice. I am downloading the firmware now. baseband version is showing i317ucama4. Right now the phone is not activated with AT&T, is there a way I could test if I will be able to get cellular data before going to AT&T and activating it?
Click to expand...
Click to collapse
Well you're baseband is good. Just get a little cheap prepaid sim card for testing purposes. The stock firmware should fix anything in the modem or system that could have been corrupted... So flash that and have a cheap at&t Sim handy for testing.
Just use your father's sim card. Either it connects to the GSM network or it doesn't.
absinthesummer said:
Well you're baseband is good. Just get a little cheap prepaid sim card for testing purposes. The stock firmware should fix anything in the modem or system that could have been corrupted... So flash that and have a cheap at&t Sim handy for testing.
Click to expand...
Click to collapse
I attempted to flash the stock rom via odin v. 307 but I get a failed message. The phone shows I have a custom binary download (12 counts), official Samsung binar but, my system status is custom and my knox warranty is void: 1. Then there is a red message stating "unsupported version" at the bottom. The date for the stock rom was Jan 2013 AT&T, US on the sammobile site. I can no longer boot into the phone's OS, I am stuck in download mode until I manually restart and then it displays a message that I need to connect to Kies recovery. Thank you for the help so far, Any chance I can salvage this phone still? I did try going into Kies, but it cannot connect with my phone for some reason?
1425
rangercaptain said:
Just use your father's sim card. Either it connects to the GSM network or it doesn't.
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Click to collapse
Unfortunately, I got the phone when I was visiting home, I currently live a few states away from him. It would definitely make things much simpler if I didn't right now though.
GreatGrizzwald said:
I attempted to flash the stock rom via odin v. 307 but I get a failed message. The phone shows I have a custom binary download (12 counts), official Samsung binar but, my system status is custom and my knox warranty is void: 1. Then there is a red message stating "unsupported version" at the bottom. The date for the stock rom was Jan 2013 AT&T, US on the sammobile site. I can no longer boot into the phone's OS, I am stuck in download mode until I manually restart and then it displays a message that I need to connect to Kies recovery. Thank you for the help so far, Any chance I can salvage this phone still? I did try going into Kies, but it cannot connect with my phone for some reason?
Click to expand...
Click to collapse
It sounds like the phone was updated previously to either 4.3 or 4.4.2, which have Knox and that pesky counter. Technically you can't directly downgrade, so be sure you're downloading firmware that is 4.3 or higher. I didn't realize sammobile only went to MA4 for US AT&T. (In a pinch you can use Canadian firmware, but we have other links for stock firmware). Also, don't worry too much about Kies. It can be helpful, but honestly I could never get my note 2 recognized by kies either.
When I get back from taking my kids to school, I'll gather some links that will help you revive this phone Links below:
@GreatGrizzwald:
More recent links to stock firmware: STOCK PACKAGES TO MK6 This is LJ2 (4.1.2), MK6 (4.3) and up. He's got all the stock firmwares, available for flashing either in recovery on via odin. I've highlighted the one I would use in the attached screenshot (MK6- ODIN)
He also has a thread for NE5 (The latest firmware, 4.4.2) HERE
So if MK6 doesn't work, try NE5. One of those two has to work. You're dad already updated to either 4.3 or 4.4.2, I don't know which so start with 4.3 (MK6) and if it doesn't work try 4.4.2 (NE5)
On those two threads, he has a TON of links that will be helpful to you in getting back to stock also.
And here's a reference page with some useful links: One Stop Shop
This one is dedicated to downgrading back to LJ2 (4.1.2) from 4.3+, it MIGHT come in handy for you: Downgrade Instructions
If you have trouble with the stock firmware, you can also try Chainfire's CF Auto Root. It's stock firmware but it's rooted. Try the other firmwares by Zen Arcade first though CF AUTO ROOT
We'll get it going for you The stock firmware will re-flash the modem and all the configuration files so you're data should work again. Then you can do whatever you want, root, recovery, flash other stuff, or leave it stock. You got this
---------- Post added at 07:51 AM ---------- Previous post was at 07:09 AM ----------
GreatGrizzwald said:
Unfortunately, I got the phone when I was visiting home, I currently live a few states away from him. It would definitely make things much simpler if I didn't right now though.
Click to expand...
Click to collapse
Also you have to figure out if it's software or hardware. I'm inclined to believe it's software so I think if you get it back to stock you'll be good. If it was hardware, it wouldn't even recognize a sim being inserted (recently repaired an htc one mini with this problem, it needed a new Sim tray, thankfully it was only $20).
But it sounds more like a bad flash corrupted some of those important files and configurations controlling data connections, it's all good, if it's software it can definitely be fixed. If it were hardware it could still be fixed it would just be a bit more time consuming.
One more thing, after you flash the stock firmware, and you have a sim card to test with, make sure your apn settings are correct for whichever carrier you're using. If the apn is wrong, or there is no apn listed, it won't connect. If you need assistance with that, let me know.
absinthesummer said:
One more thing, after you flash the stock firmware, and you have a sim card to test with, make sure your apn settings are correct for whichever carrier you're using. If the apn is wrong, or there is no apn listed, it won't connect. If you need assistance with that, let me know.
Click to expand...
Click to collapse
Thank you for all this, I will start working with it today. You have been a huge help.
GreatGrizzwald said:
Thank you for all this, I will start working with it today. You have been a huge help.
Click to expand...
Click to collapse
No problem, I know how much of a pain it can be when things just don't seem to be working. But you have all the resources you need now and I'm gonna talk to my friend who runs the one-stop shop page to see if he will update it and add some of these resources to make it easier for you, and others with similar problems, to find what they need. Good luck!
1100
absinthesummer said:
One more thing, after you flash the stock firmware, and you have a sim card to test with, make sure your apn settings are correct for whichever carrier you're using. If the apn is wrong, or there is no apn listed, it won't connect. If you need assistance with that, let me know.
Click to expand...
Click to collapse
Hey, I was able to flash the stock rom you recommended, everything is working fine. Took the phone to AT&T and got a new sim card, everything seems to be working perfectly. Thank you again for all your assistance. could not have done this without your help.
GreatGrizzwald said:
Hey, I was able to flash the stock rom you recommended, everything is working fine. Took the phone to AT&T and got a new sim card, everything seems to be working perfectly. Thank you again for all your assistance. could not have done this without your help.
Click to expand...
Click to collapse
That is great news! I'm so glad it's working for you. Enjoy your (new-to-you) note 2 and keep those files on hand in case you need them in the future!
absinthesummer said:
No problem, I know how much of a pain it can be when things just don't seem to be working. But you have all the resources you need now and I'm gonna talk to my friend who runs the one-stop shop page to see if he will update it and add some of these resources to make it easier for you, and others with similar problems, to find what they need. Good luck!
Click to expand...
Click to collapse
If I can ask one more question, the phone keeps trying to download and install a software update however, it is unable to complete the update. Could this be because my counter was tripped? or could I be missing something that I should have flashed along with the stock firmware?
GreatGrizzwald said:
If I can ask one more question, the phone keeps trying to download and install a software update however, it is unable to complete the update. Could this be because my counter was tripped? or could I be missing something that I should have flashed along with the stock firmware?
Click to expand...
Click to collapse
There are a few reasons it won't flash. If it still says custom in download mode, for instance, from when your dad tried to root it. You can check in your about phone section to see if it says modified or official. It should say official there but when you're in download mode it will tell you your status:custom.
Something like
Model : SGH-i317
Binary count:
Firmware: Samsung official
Status: Custom (it should say official to receive OTA)
Knox warranty bit: 0x1 (from where your dad tried to root)
^Either of those last two can prevent an OTA from completing. The update checks for certain things and then continues or rejects based on those checks.
Also (and this shouldn't apply to you) if you have a custom recovery installed or you've rooted and removed pre-installed apps, it won't flash. Check those things and your OTA should work. If it still doesn't, you can download the ne5 firmware I linked you to before. That's official 4.4.2 firmware and it will update you to the latest via Odin if you can't take the OTA for whatever reason.
The firmware you flashed should have taken everything back to stock for you, but it wouldn't really reset the Knox counter & custom status... and that very well could would an OTA. It seems it does anyway, so just update yourself with Odin.
Lastly, if you really want to reset completely, and be able to OTA, you can do that downgrade method I linked before to completely reset your phone and allow you receive OTAs again. (It would take you ALL the way back to 4.1.2 and you would OTA back to 4.3-4.4.2. Personally, I wouldn't do all that unless I planned to sell it, because the firmwares that are released for OTAs are usually available on here to flash with Odin within a day of release, so you'll always be able to have the latest firmware regardless.
Hope that helps you didn't miss anything, it's just the nature of the OTA.
---------- Post added at 09:08 PM ---------- Previous post was at 09:02 PM ----------
Edited to add, you can also go about it another way: root it and use triangle away to reset your custom status & flash counter and then reflash the same firmware you did yesterday. Then you should be able to OTA. (Although I'm not 100% on whether or not the Knox counter will interfere with the OTA update, I think it's just the flash counter that trips it).
And if you want the OTA notice to stop completely, you can root it and turn off the notifications entirely. I wasn't sure on whether you wanted to take the update or not... if you do, I'd just update with the latest via Odin. It's the simplest way to update and you wouldn't have any issues or surprises that people tend to get with OTAs.
absinthesummer said:
There are a few reasons it won't flash. If it still says custom in download mode, for instance, from when your dad tried to root it. You can check in your about phone section to see if it says modified or official. It should say official there but when you're in download mode it will tell you your status:custom.
Something like
Model : SGH-i317
Binary count:
Firmware: Samsung official
Status: Custom (it should say official to receive OTA)
Knox warranty bit: 0x1 (from where your dad tried to root)
^Either of those last two can prevent an OTA from completing. The update checks for certain things and then continues or rejects based on those checks.
Also (and this shouldn't apply to you) if you have a custom recovery installed or you've rooted and removed pre-installed apps, it won't flash. Check those things and your OTA should work. If it still doesn't, you can download the ne5 firmware I linked you to before. That's official 4.4.2 firmware and it will update you to the latest via Odin if you can't take the OTA for whatever reason.
The firmware you flashed should have taken everything back to stock for you, but it wouldn't really reset the Knox counter & custom status... and that very well could would an OTA. It seems it does anyway, so just update yourself with Odin.
Lastly, if you really want to reset completely, and be able to OTA, you can do that downgrade method I linked before to completely reset your phone and allow you receive OTAs again. (It would take you ALL the way back to 4.1.2 and you would OTA back to 4.3-4.4.2. Personally, I wouldn't do all that unless I planned to sell it, because the firmwares that are released for OTAs are usually available on here to flash with Odin within a day of release, so you'll always be able to have the latest firmware regardless.
Hope that helps you didn't miss anything, it's just the nature of the OTA.
---------- Post added at 09:08 PM ---------- Previous post was at 09:02 PM ----------
Edited to add, you can also go about it another way: root it and use triangle away to reset your custom status & flash counter and then reflash the same firmware you did yesterday. Then you should be able to OTA. (Although I'm not 100% on whether or not the Knox counter will interfere with the OTA update, I think it's just the flash counter that trips it).
And if you want the OTA notice to stop completely, you can root it and turn off the notifications entirely. I wasn't sure on whether you wanted to take the update or not... if you do, I'd just update with the latest via Odin. It's the simplest way to update and you wouldn't have any issues or surprises that people tend to get with OTAs.
Click to expand...
Click to collapse
Awesome, that makes a lot more sense now. Thanks again.
Hey I forgot you don't have custom recovery. Anyway, I sent you PMs,and you can do a search of this very forum- use the search term "update" or "ota" and you will find a LOT of threads on boot failures after OTA. Most people got their phones back.
If you can't get into DL mode (Vol-, Home, Power), try getting into the stock recovery (Vol+, Home, Power) because you should/could be able to factory reset the device from there. Also hold the button combo longer than usual. If one recovery option (DL mode) isn't working, than theoretically the other should still be accessible, through which you can adb sideload to the device or try factory reset. I know it's frustrating, but you're not the first nor the last to have an OTA go wrong ;/ We'll get ya back up & running.
You're not the only one in trouble after that update: http://forum.xda-developers.com/galaxy-note-2-att/help/todays-update-soft-bricked-phone-t2939649

Can I go from 4.0.4 to 4.1.1 or higher right away?

Hi all, new comer to the S3 here but not new to flashing etc. I just wanted to get a few things straight before I went ahead.
1. I downloaded and used Mskip unified android toolkit. I rooted and flashed twrp recovery to my S3.
I am on I747UCALG1 4.0.4 and I just wanted to know if I can flash the 4.1.1 build ATT-I747UCDLK3 that I found here straight away in odin. I know some sammy phones are drama queens when it comes to new bootloaders etc. Will the new build update the bootloader or should I do this separately.
Or should I just download a rom from the development section and flash it in twrp or won't that work and I need to flash a new bootloader first then flash the newer roms.
Thanks for any help and yes I did search around but only found questions regarding downgrading.
Bro, remember my strong advice - don't go higher.
Battery life goes worse with every update. I wish I never did it.
But if you want to try something new, try OctOs
The problem I'm having right now is that my wifi keeps on scanning but does not find any networks although I am 2 feel from my router. This phone really was my Gfs that went crazy and I changed out the mainboard so I'm just running it as a back up.
Personally, I would flash stock 4.1.1 from sammobile.com and sim unlock the phone using the free method if the phone is sim locked. Once sim unlocked, I suggest running OTA updates until the phone is running the latest stock ROM. Once it is running the latest stock ROM, flash twrp, take a nandroid backup, and then flash a custom ROM if you want.
Note: once the phone is running the latest bootloader, you cannot downgrade the bootloader.
Would be hard to do an OTA since I cannot connect to any wifi networks.
if youre talking upgrading bootloader/modems , and cannont do as @audit13 suggests , and cannot connect to wifi or use/have enough data ; then i would suggest upgrading incrementally.
"err on the side of kindness"
Is wifi disabled on the phone?
audit13 said:
Is wifi disabled on the phone?
Click to expand...
Click to collapse
No it is on and scans for networks but it does not show any, even if I add a network manually it does not connect. I read somewhere that I need a newer bootloader in order for the wifi to work. Does anyone have the newest bootloader for me to flash and try this out on?
mrrocketdog said:
whats your current bootloader and modem.? if dont know u can download app called "samsung info" from play store that will tell.
heres the xda thread
http://forum.xda-developers.com/showthread.php?t=2609045
"err on the side of kindness"
Click to expand...
Click to collapse
"err on the side of kindness"
Do the last 4 characters of the modem match the last four characters of the bootloader?
For wifi to work properly, it is best to match the bootloader to the modem and vice versa.

Can't connect to certain Wi-Fi, need help

I just joined in the past few days because I decided to try different ROMs on my i747. This is my 1st ever post, and I thought I'd try out this rooting and flashing that I'm missing out on.
First of all, THANKS to EVERYONE that posts here for all of the help given to me and that others have used. Nice to see people helping out other people in such ways.
Second, I have successfully put a few different ROMs on my i747 over the past few days and can't believe how easy it was. I was always scared to do it. I decided since the thing was just sitting in a drawer not being used "What's the risk?"
Third, my actual issue...No matter what ROM I have on the i747, it will not connect to Wi-Fi at my work. FYI, I work (in IT ironically) in a very large company with hundreds of access points around the campus. So I know it is not the network, as we would have others with the same issue. It connects to all other (that I've tried so far) Wi-Fi networks with no issues.
I just don't understand all the terms bootloader, firmware, kernel, modem etc. I read decriptions (on here) trying to explain and I just can't grasp it.
I was on stock with whatever the last OTA update from AT&T was. I updated the boatloader (I believe) from NE4 to NJ1 to NJ2 using this thread. At least, I'm assuming I did it right. Nothing failed and the Phone Info app looks like it worked. https://forum.xda-developers.com/galaxy-s3-att/general/ucuemjb-to-ucufne4-firmware-update-t2808654
Anyone can give me any tips on what I need to do to possible get this working? It's not really a huge deal breaker, it's just bugging me as to why it isn't working.
Thanks in advance!
You upgraded the modem/baseband software when updating the bootloader?
audit13 said:
You upgraded the modem/baseband software when updating the bootloader?
Click to expand...
Click to collapse
I'm guessing no. How do I do that? Don't want to brick it.
I found this link, but what firmware am I on? How do I tell?
https://forum.xda-developers.com/galaxy-s3-att/general/modem-4-4-2-modems-i747-i747m-t2856577
Did you flash the zip or did you flash aboot.mbn? If you flashed the zip, the bootloader and modem would have been updated at the same time.
audit13 said:
Did you flash the zip or did you flash aboot.mbn? If you flashed the zip, the bootloader and modem would have been updated at the same time.
Click to expand...
Click to collapse
I flashed the zip.
So an unrooted stock ROM also refuses to connect?
audit13 said:
So an unrooted stock ROM also refuses to connect?
Click to expand...
Click to collapse
I don't know how to go back to stock.

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