N4 unable to connect to network..Help please! - T-Mobile Galaxy Note 4 Q&A, Help & Troubleshooting

Hey everyone, so I just recently upgraded my Note 4 from KK to LP, but during the process, I had to flash the Baseband and modem before I flashed the LP ROM. I then flashed the ROM after I did that, and ended up with no network... I'm still able to make calls ONLY when I'm connected and close enough to the WiFi, texting is still fine I believe. So then I tried going through the process of downgrading to see if that would relieve the problem of my network issue, but it still isn't even working. Even after doing the process in reverse, flashing the baseband and modem before flashing my ROM.
I'd like to add that I did take apart my phone because my screen needed replacing, so I took apart my phone to see if I made my signal cables loose, they were, but then I popped them back in again, turned on my phone to see if that was the issue, and it still doesn't work, as well as my hardware back button doesn't work anymore so I have been using a nav bar to access my multi-window app.
I have tried flipping my signal cables, going from LP to KK, KK to LP, and reinstalling the firmware...
Edit: Whenever I factory reset in the stock recovery, I get an " Error:failed to mount /preload (no such file or directory)

Have you odin'd to stock lollipop?

You need to Odin stock firmware from Samsung, this will fix what you borked.
Then you can try again.
Pp.

Android_Monsters said:
Have you odin'd to stock lollipop?
Click to expand...
Click to collapse
Yes
PanchoPlanet said:
You need to Odin stock firmware from Samsung, this will fix what you borked.
Then you can try again.
Pp.
Click to expand...
Click to collapse
I've tried 2 fresh downloads of the stock firmware and it hasn't worked, but I will just download the file straight from Samsung this time to see if that could fix the problem. My new signal antennas I ordered from ebay are on the way and should arrive tomorrow. I'll then try that if this troubleshoot doesn't work because I don't have any 4gLte network at all, and it only pops up randomly and at certain areas I drive. I'm constantly moving and I could never have a stable connection, no calls, no text messages till I'm connected to the wifi:crying:
Edit #2: So I have installed new signal cables, and still not getting any 4G/LTE Network. I have constantly checked on my wires to see if it does anything to the network, but it doesn't. Still able to make calls on Wi-Fi only ): And I have used Odin to try and revert back to stock fully and no luck..

Related

wifi not working [cyanogen/stock]

wifi stopped working i believe right after i flashed to the latest cyanogen mod, or shortly after. Today i flashed back to rogers stock froyo and still wifi does not work. Wtf is going on, did my router block access to it after cyanogen was installed or something?
any advice is appreciateed
3g still works.
stavs said:
wifi stopped working i believe right after i flashed to the latest cyanogen mod, or shortly after. Today i flashed back to rogers stock froyo and still wifi does not work. Wtf is going on, did my router block access to it after cyanogen was installed or something?
any advice is appreciateed
3g still works.
Click to expand...
Click to collapse
Try some troubleshooting first.
Reset your Access Point/Router, or try a different router/ap. Flash back to 100% stock and do a "master clear".
I also find it useful to clear out the /efs partition after returning to Samsung ROMs after using CyanogenMod. Of course ONLY do this after you have a tested and safely stored a backup of your current "nv_data.bin" file. You have been warned.
Take out your battery and just let your phone chill for a few hours. That sometimes helps too.
Anyway, if after a complete flash to stock and master clear, and some troubleshooting with different access points you still get no WiFi signal, something may be wrong with your hardware...
From there you might either need to send it into a Samsung service center, or find a very technically minded XDA member to help you further. Good luck!

[Q] Wifi broken, need help please

After a few days running Dlev's 4.2 ROM, my wifi stopped working suddenly. When I try to turn it on it says error or unable to start wifi. I've exhausted several initial options I began walking myself back through various ROM's back to the original 2.1 stock ROM. Without success I even performed a master clear and several reflashes of the orininal stock ROM, nothing is working. I tried FXR Wifi fix and rescue. Does anybody have any ideas on what I should do?
Thanks,
-Digitalchaos
Kernel?
What kernel were you running with the custom ROM? Talon's being updated really frequently, so if it's Talon, you might try the latest version of that (0.4.4.22, as of this writing)
digitalchaos said:
After a few days running Dlev's 4.2 ROM, my wifi stopped working suddenly. When I try to turn it on it says error or unable to start wifi. I've exhausted several initial options I began walking myself back through various ROM's back to the original 2.1 stock ROM. Without success I even performed a master clear and several reflashes of the orininal stock ROM, nothing is working. I tried FXR Wifi fix and rescue. Does anybody have any ideas on what I should do?
Thanks,
-Digitalchaos
Click to expand...
Click to collapse
Did you try rebooting your router or device that gives you wireless signal? also see if other devices can connect.
It was Talon 0.4.4, but I've gone all the way back to stock ROM/kernel etc and that makes me think that this is a HW malfunction.
AT&T had me reboot the router too, my laptops are able to connect just fine. It's not really a connection problem either, Wifi will not turn on at all.
I called Samsung and they want me to ship them the phone, still debating that one since I will have to go without a phone.
-digitalchaos

Flashed kdz with lg software, imei and boot problems.. Help please

. I flashed the KZ file with lg update software as explained in the XDA thread but I could not get the process to work right. My phone kept disconnecting at 28% and it would not turn on no matter what I did. It would only make a short vibrate as if it was turning on, and the computer would notice it but only for a short time. And never once did a light on the screen, or LG logo, or anything at all ever appear.
I figured I had really screwed it up, but when I plugged it into the wall it booted up perfectly. All my data was in tact and the rom i had flashed through cwm was still there, not the kdz file that I flashed with the lg software.. I noticed that my sim card did not come up as being in the phone at all. I looked in system setting status and noticed that all info related to my imei said unknown. I opened up the mfg app (277634#*# from the phone app).. Under "version info" then "factory version" my phone now says xmm6260.. It always used to say p925..etc... Even after flashing the zip to debrand from at&t this never changed from p925 even when every other aspect of my phone has.. I was hoping maybe once I put in an activated sim card everything would be fine and my phone would be unlocked which is why i flashed through lg software.. But seeing as how other people are having this similar issue and their phones not seeing the sim card, well im looking for some advice.. Should I try and re flash kdz file through lg software again? if i do, im going to do it on my XP computer this time, not Windows 7..
Just wanted to add that I did try wiping data and cache from cm and no dice.. Root and CMW work fine but no matter what I do, if my phone is turned off, i cannot boot up or boot to cwm or boot at all unless i plug the phone into a wall carger and then once its on it stays on and i can unlug.. SORRY ABOUT THE LONG POST, THANKS IN ADVANCE FOR ANY HELP..
I would reflash CWR first and foremost, then try to flash back to stock.
No IMEI/GSM Radio
Hi, were you able to fix your problem? If so, could you please give me a hand, I have same problem.
Im attaching a couple of screen shots, one where you can see that IMEI is not shown and other is where you see the phone number thats on the SIM but has a sign like if no SIM were inserted.
Using the KDZ detects the IMEI, but after flashing it doesnt show up on phone.
Thanks
Took my phone to a cellphone shop and they fixed it. Everything is back to stock and working normal.
Hi ive got the same problem, did you fix it?
Yes, my phone is working perfect at stock. Im going to wait for GB ir ICS with a working 850MHz baseband.

[Q] unable to get data connection

Hi guys,
I'm being annoyed by my SGS about his data connection. Hope someone could help me!
Few days ago I flashed MIUI Mintberry 2.1.20 and everything was working like a charm, but this morning data connection switch failed several times.
I've tried to wipe everything, re-flash Mintberry and even to flash JVU stock with Odin, but I still can't switch on my data connection.
I can't even see any icon on the status bar.
Any idea? Is my phone broken?
kpaolo said:
Hi guys,
I'm being annoyed by my SGS about his data connection. Hope someone could help me!
Few days ago I flashed MIUI Mintberry 2.1.20 and everything was working like a charm, but this morning data connection switch failed several times.
I've tried to wipe everything, re-flash Mintberry and even to flash JVU stock with Odin, but I still can't switch on my data connection.
I can't even see any icon on the status bar.
Any idea? Is my phone broken?
Click to expand...
Click to collapse
Hmm this is strange, so you turned data on but theres no symbol, right? Have you tried installing another kernel (maybe also applying the Kernel Cleaning Script)?
I' ve tried everything with Odin, and at the moment I have a beautiful black screen of death.
Odin cannot recognize my phone... I'm very frustrated
EDIT: Upgrading Kies'drivers, I managed to connect the phone with Odin again, so I've flashed the lastest official stock firmware to check my antennas. In the worst case, I'll be able to go to the shop for assistance without problems.
Have u tried typin ur apn maually?
Sent from my GT-I9000 using xda premium
Sounds like a settings issue. Never heard of anyone have this problem before - I've flashed every version of mintberry including betas.
I just had this issue
I just had this and figured out what is wrong, its a easy fix too! Just go to settings and wireless and change the access point for your mobile connection. I had 2 access points and just switched it to the other one and my data started working again!
Hope I could help
Hi guys! thank you for all these answers!
I've tried to set APN manually, to change custom ROM and custom kernels and coming back to stock too, but still no data connection icon (neither data connection itself).
At the moment, I'm on JVO, the latest official italian firmware, everything is fine but 3g data connection.
Other ideas? Shall i need of Samsung customer service (I hope no!)?
Solved...
MIUI default settings fault: SMS notification has ran out my money and my provider has blocked 3g connection.
My phone is safe!

Networks detected but will not register

So I had some escapades today, I had my SGS running jellybean, then I tried to change the screen density and bang, bootloop. I panicked and after some odin fiddling managed to get it booting Darky using odin. I was in a room with no signal at the time so I thought nothing of not having any signal, even so I then went ahead and used recovery to reinstall my Jellybean rom since that's a bit nicer than the 2.3 Darky.
Long and the short of it is, I can search for networks in my options and it will find them, but when I tell it to connect to one it says "Can't connect to this network right now. Try again later"
I have tried later and surprise surprise it didn't work. I have tried installing a different radio, clearing the dvalik cache and fixing permissions as well as a few other things. Please can anyone suggest something, this seems to be a very uncommon scenario and it's stressing me out that I can't find any solutions.
alzrnb said:
So I had some escapades today, I had my SGS running jellybean, then I tried to change the screen density and bang, bootloop. I panicked and after some odin fiddling managed to get it booting Darky using odin. I was in a room with no signal at the time so I thought nothing of not having any signal, even so I then went ahead and used recovery to reinstall my Jellybean rom since that's a bit nicer than the 2.3 Darky.
Long and the short of it is, I can search for networks in my options and it will find them, but when I tell it to connect to one it says "Can't connect to this network right now. Try again later"
I have tried later and surprise surprise it didn't work. I have tried installing a different radio, clearing the dvalik cache and fixing permissions as well as a few other things. Please can anyone suggest something, this seems to be a very uncommon scenario and it's stressing me out that I can't find any solutions.
Click to expand...
Click to collapse
check apn settings?
slaphead20 said:
check apn settings?
Click to expand...
Click to collapse
Yeah I've checked them and unfortunately they all seem to be in order still, though there are a lot more settings than any website offers things to put in them
same problem
i am having this same problem on all cyanogenmod 7,9,10. i have tried many radio and modem flashes. i can scan and see networks, but i can never connect to them.
have you made any progress?
Problem is EFS folder which tends to do with IMEI.
To fix it you need to copy the backup EFS folder from your SDCARD to the root of your device. (/)
If you don't have a backup you'll have to ODIN back to stock and re-root....etcetera
Sent from my GT-P7500 using xda app-developers app
thx
thank you for the response. I put it back to stock lastnight before bed so i will give this a try.
i have the gti9000m from bell in canada. I updated it through kies to 2.3.3 gingerbread and it all went badly. It would boot up and load to the os be on for a bit then reset. It turned out to be wifi problem, running it on airplane mode stopped it from rebooting. Then if i tried to turn on wifi it would quickly reboot.
So then i tired all the cyanogenmods, which worked it stopped rebooting all the time. however the wifi would connect and work for about a minute then it would drop. doing the
1.turnOn gps
2.turnOn wifi
3. turnOff gps
this would let the wifi work again for about a minute. I tried all the wifi fixer apk, and a bunch of wifi.zip mods, and then ping the router gateway constantly, none solved this problem. Very annoying because i need the wifi working for develpoment of apps. I have spent a great many hours on this problem. lots of people seam to have this problem but no solutions have wokred for me.
So, my questions are....
1. does your wifi work?
2. how the heck do i get mine to work?
back to stock
After going back to stock then upgrading connecting to network operators is fine.
wifi is still broken though

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