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Hello I'm having difficulties with my i9000.
The problem first started when I smashed my screen. Bought a replacement screen and middle plate frame bezel, including the home button flex cable. I also unfortunately damaged the loud speaker and thus replaced that also. Now everything is installed and the phone works great except for connecting to a network and making calls.
When I dial a number I get "Mobile network not found". When I check available network it finds my network and attempts to connect. Then I get a message this network is not available for this sim card, or something along those lines.
The sim card works in another android phone and other sim cards gives the same message.
The IMEI is intact and correct.
The phone is unlocked
I started on 2.2 and have flashed the firmware with many different types and still with the same message.
Now my question is this, how would changing the screen, middle plate & loud speak have this effect on the phone? Bear in mind that the phone still functioning with the cracked screen and making calls.
If anyone could help put me out of my misery it would be most appreciated.
Try flashing different modems now !
I'd say you might have disconnected a cable or forgot to reattach it. However, that might not explain that you do see the network sometimes. So yes, modem's probably a safe bet.
jayeshup said:
Try flashing different modems now !
Click to expand...
Click to collapse
Ok I'll try this, not quite sure how the changes I made would effect the modem.
davidsmit said:
I'd say you might have disconnected a cable or forgot to reattach it. However, that might not explain that you do see the network sometimes. So yes, modem's probably a safe bet.
Click to expand...
Click to collapse
All cables have been checked and triple checked, and the network is always visible to connect to. Thanks for the advice I'll try the modem, is there a particular one I should try? I'm in the UK and my phone provider is 3.
Tried various different modems, giving sometimes better signal quality and sometimes worse. None of them have any effect. The message i get when connecting to the network is "your sim card does not allow connection to this network". Which to me sound like it may be locked again. So I'm going to try and dig out the original sim card and try that.
Try some other network and check !
Tried other networks and still no joy. I've flashed it many times now, gone back to stock firmwares and nothing will work. Spoke to Samsung and they just tell me to plug it in to Kies, which does nothing. I'll take it to my nearest Samsung service centre and see if they can fix it.
1. In security remove SIM pin request at restart.
2. Reflash MODEM with odin
3. At searching network check (automaticly)
Hey, thanks for clicking my post. TL;DR Since updating from ARHD 40.3 to Viper One 6.2.0, my radio has been having major intermittent issues. I have a HTC One m7_ul unlocked outright from Optus here in Australia. It is as of right now running the latest firmware linked to by the Viper One/ARHD threads, the latest TWRP, is S-OFF and superCID, running Viper One 6.2.0.
Symptoms:
1) No signal most of the time.
2) Signal appears to return during periods of movement (e.g. driving).
3) Even at full signal, there is no mobile connection (no data, no text/calling).
4) Once every few hours, when it has signal, it will gain mobile connection for a short period of time, after which it will cut out again - repeat to 1).
Here's a short story about how this came to be:
For many many months now it has been running just fine on stock firmware, rooted with S-ON running ARHD 40.3 (since that version came out).
About a fortnight ago I started noticing issues with my contacts application. Something to do with 501 contact link suggestions and certain contacts having hundreds of Facebook profile entries. This would cause issues in the People app (people just wouldn't load) and the SMS app (message histories wouldn't load, including new texts).
After some troubleshooting attempts, I resolved to reinstall a ROM. I opted to install the latest Viper One (6.2.0) successfully. It resolved my issues. However, it introduced a new one. The next morning I woke up to 4 texts from my service provider informing me I'd missed calls. I had no notifications as such, so the calls never reached my phone. I put it down to tower signal flex in my area. I left and as I walked out the door I noticed I had no signal (no bars, x above the icon in statusbar). Driving around seemed to fix the issue though, it got back up to normal values quickly enough.
However, even though I had plenty of signal and mobile data was ostensibly turned on, I couldn't get internet. I tried sending a text to myself but it failed send. Calls out simply waited on signal and then timed out. Every single other function of the device is 100% AOK (wifi, bluetooth, nfc, etc). The entire ROM is fully functional, can't find any other issues with stability or otherwise.
I put up with it for the day and get home and start troubleshooting. Here's what I tried so far, in order:
1) Change from Viper One to latest ARHD (71.1). Installed with no issues. Booted phone, no dice - no signal.
2) Checked SIM by moving to old iPhone 4 - full signal, radios work. It's not a service issue.
3) Revert to last known working ROM - ARHD (40.3). Installed with no issues. Booted phone, no dice - no signal.
4) Research research research. Think it might be a problem with firmware perhaps. Tried revone, failed because I'm not on 4.2.
5) Flash MaximusHD (11.0.0) in order to make use of revone for S-OFF/superCID. Flashed latest firmware linked in Viper One/ARHD threads.
6) Reboot phone. Still no dice with latest firmware on MaximusHD (11.0.0).
7) Retry with latest ARHD. No dice.
8) Retry with latest Viper One. No dice.
In every single instance, all the ROMs are fully functional except for mobile signal - wifi, bluetooth, nfc, etc. radios function perfectly. No issues with ADB or fastboot during any step of these processes. All my device info shows what I expect to see. I've searched as much as I can, to no avail. I turn to first-time posting here as a last resort to maybe find out what the issue is.
I am slowly reaching the thought that the hardware itself might be the issue. I'd appreciate any insight into what could be causing this - be it software or hardware - as well as if there is any way to test or diagnose the radio physically. Even just a confirmation ("Yep, sounds like your radio's FUBAR"). In the meantime, I'll be using aforementioned iPhone 4 (ugh).
Thanks for reading.
Have you attempted to flash a different radio baseband?
Look up the radio version used in ARHD 41. If you find it, search for the radio within the forums and flash it. You can still keep the most current version of your preferred ROM. Search the threads for how to flash a radio baseband, there are plenty of them.
digitalism said:
Have you attempted to flash a different radio baseband?
Look up the radio version used in ARHD 41. If you find it, search for the radio within the forums and flash it. You can still keep the most current version of your preferred ROM. Search the threads for how to flash a radio baseband, there are plenty of them.
Click to expand...
Click to collapse
I found a forum for HTC One radios here, it's in the AT&T section but apparently work on all HTC Ones. I was unable to find out which radio ARHD 41 used, my understanding is that custom ROMs don't usually come with a radio baseband of their own and they don't appear to list any on their thread that I could see. I would inquire but I think there's an issue with new users posting in development sections. Do you think it's worth trying to look further into what radio was used, or should I start flashing radios from the aforementioned list? There's a couple that stand out as possible candidates (the earliest version, the newest version, etc) but I'm not sure I want to just start going crazy on that list until something works. Or do I?
edit: To clarify, and they say explicitly in the ARHD post FAQ, they do not include radio/hboot/firmware in their ROM. So I must assume that I was simply on the stock radio the device shipped with.
edit 2: Confirmed my current baseband matches one of the ones indicated as installed from firmware package. I'm not sure what it was before I updated to Viper One or even while I was using Viper One.
Flashed the earliest radio baseband available from the aforementioned thread. Put the SIM back in, signal achieved, able to send texts/make calls/USSD codes. I was unable to get it to transfer mobile data, however.
Can't believe I didn't think about radio baseband. Didn't even know that was a thing. I just thought it was part of the firmware package. There you go I guess. Thanks again for the tip.
Whitestrake said:
Thanks again for the tip.
Click to expand...
Click to collapse
No problem, just remember that if you're having issues with certain partitions on the device, each partition is technically flashable if you are S-Off and SuperCID.
digitalism said:
No problem, just remember that if you're having issues with certain partitions on the device, each partition is technically flashable if you are S-Off and SuperCID.
Click to expand...
Click to collapse
I've tried just about every radio in that forum. They all seemed to have the same issue for me - at first it seems to have no signal, then it gets normal signal, receives/sends any buffered texts, and then fails to work after that for any purpose regardless of signal. I think I'm back at square one; I don't suppose there are any other simple things to try?
Whitestrake said:
I've tried just about every radio in that forum. They all seemed to have the same issue for me - at first it seems to have no signal, then it gets normal signal, receives/sends any buffered texts, and then fails to work after that for any purpose regardless of signal. I think I'm back at square one; I don't suppose there are any other simple things to try?
Click to expand...
Click to collapse
If you are having issues still, the other alternative is to flash a different firmware version than what the ROM provides. Firmware and radios tend to "talk" to each other in certain ways, so maybe your firmware isn't using your radio the way you need it to. Also, make sure you are installing firmware particular to your device. For instance, do not install firmware originally meant for an AT&T phone if you use Verizon or another carrier. They tend to write the code particular to these things. I would do some research through the forums and see if you can find a good combination in your area that people have tried. Maybe even a Google search will help out if the forums seem daunting to dig through.
And don't forget, the iPhone has a Quad-Band receiver that's capable of receiving cellular signals much clearer. The HTC One, in my opinion, does not match hardware compared to the iPhone. The iPhone will always technically be superior, no matter what opinions people hold to both.
First, thanks again for your patience and assistance.
digitalism said:
Also, make sure you are installing firmware particular to your device. For instance, do not install firmware originally meant for an AT&T phone if you use Verizon or another carrier.
Click to expand...
Click to collapse
I was not aware of this restriction. I suspect I may have flashed firmware for a different region. I isolated the Optus firmware RUU numbers and got a firmware package matching, and the android-info.txt matches the device original CID and modelnum. I'll try it soon.
I'm still having trouble understanding, though, how it could have failed in the first place. My phone was S-ON when the radio stopped working; surely changes to firmware/radio couldn't have occurred anyway? None of the ROMs I've touched have firmware or radio included as far as I could tell.
Flashed the firmware appropriate to my region (4.20.980.1). Came with radio. Rebooted, put in SIM, no signal for 5 minutes. When I get signal, texts don't send and calling times out, USSD codes give connection problem errors. Same as before. How likely is it the actual hardware could be damaged? I did drop it on concrete, on the front of the device at the top, around the time this started happening - very shortly before I flashed Viper One to fix the contacts issue. There was no visible damage.
Whitestrake said:
Flashed the firmware appropriate to my region (4.20.980.1). Came with radio. Rebooted, put in SIM, no signal for 5 minutes. When I get signal, texts don't send and calling times out, USSD codes give connection problem errors. Same as before. How likely is it the actual hardware could be damaged? I did drop it on concrete, on the front of the device at the top, around the time this started happening - very shortly before I flashed Viper One to fix the contacts issue. There was no visible damage.
Click to expand...
Click to collapse
Quick question:
Are you installing your firmware and software without the SIM card in? If so, I would leave the SIM card in and have all the software installed during the process. Damage to the phone should not cause problems for connecting to the cellular network. Have you tried leaving the house, going outside, or getting into a different area to try your signal? Maybe your house is a deadzone and the phone is having a hard time picking it up. My room gets like this since I live in Florida where houses are built with cinder blocks to prevent hurricane damage. It really messes with my signal.
digitalism said:
Quick question:
Are you installing your firmware and software without the SIM card in? If so, I would leave the SIM card in and have all the software installed during the process. Damage to the phone should not cause problems for connecting to the cellular network. Have you tried leaving the house, going outside, or getting into a different area to try your signal? Maybe your house is a deadzone and the phone is having a hard time picking it up. My room gets like this since I live in Florida where houses are built with cinder blocks to prevent hurricane damage. It really messes with my signal.
Click to expand...
Click to collapse
Good ideas, but unfortunately not - every firmware and radio package I've flashed, I've done once with the SIM, once without, thinking along a similar line.
I'm in a known good cell location - coverage in my area is fantastic with my provider (Telstra, usually get 5 bar signal on 3G - I do not get LTE on my plan). I test in multiple places - next to my PC, outside the house, down the street, etc. The behaviour I've noticed is that I have no signal regardless of where I go, for about 5 minutes after booting the phone, after which it gets signal, sends/receives any buffered texts, and then fails to communicate successfully after that (i.e., I get the test text I sent myself, then I resend another test, and it fails to send). The iPhone 4 I've been moving my SIM to has been receiving full signal (as expected) at every place I've been testing the HTC One.
Hmm...
You might have to go into your APN settings to change some things in order to get it to work properly. Go to your Settings, then Mobile Data, then Access Point Names. From this menu click the current APN saved with the phone. After that, it will have you insert some information. Check this website for the specific APN information for your carrier. Make sure it's for your carrier as there is a large list of different ones on there.
http://ausdroid.net/apns/
Other than that, I honestly couldn't tell you what your issue is.
digitalism said:
Other than that, I honestly couldn't tell you what your issue is.
Click to expand...
Click to collapse
Tried the APN thing. There was indeed a few things different from the listed settings, but honestly, they were pre-populated with a bunch of Telstra data beforehand when the SIM was in. I made the changes and noticed no difference.
Thanks again for your help. As a last step I will return it fully to stock. After that I suspect my only recourse would be taking it back to Optus and asking if they'll quote me to fix it.
Unfortunately it does seem to be hardware issue from the history of what you have tried and posted.
Use nkk71's guide listed in my signature to go back to stock for warranty but substitute your local RUU/nandroid/etc.
SaHiLzZ said:
Unfortunately it does seem to be hardware issue from the history of what you have tried and posted.
Use nkk71's guide listed in my signature to go back to stock for warranty but substitute your local RUU/nandroid/etc.
Click to expand...
Click to collapse
Thanks for the link, that's actually one HTC One return-to-stock guide I haven't seen yet and it looks very concise. Cheers.
Whitestrake said:
Tried the APN thing. There was indeed a few things different from the listed settings, but honestly, they were pre-populated with a bunch of Telstra data beforehand when the SIM was in. I made the changes and noticed no difference.
Thanks again for your help. As a last step I will return it fully to stock. After that I suspect my only recourse would be taking it back to Optus and asking if they'll quote me to fix it.
Click to expand...
Click to collapse
Sorry about that, I know having a custom ROM is a lot of fun, but there can definitely be some cons along with it.
Good luck with your phone!
So as of saturday my unlocked TMobile Note 4 stopped working as a phone, and won't let me make calls.
Information:
-Was on Dr. Ketan L3 version of his rom when it stopped working
-Using the N910T on AT&T
-IMEI is fine and not damaged, both numbers match (using *#06#)
-It shows bars, but when I go to make a call "Not Registered On Network"
What I've Done:
-Flashed Stock Firmware via Odin (Autoboot, and F.Time Rest checked)
-Factory Reset after odin flash
-Checked APN
-Set on LTE/WCDMA/GSM
-Searched for Networks, finds them, but when I choose AT&T it takes forever and then finally kicks me out and then in notifications, I get the "Not Registered to Network"
-Did the remove the battery thing, and removed sim
-Went to AT&T and got a new sim, worked for 1hr (sporadically) and then went back to "Not Registered on Network"
-At the store I was on phone with AT&T tech trying to troubleshoot the problem and that is when it was working shortly
-Called T-Mobile and checked to see if they blocked my IMEI number, nope they didn't, couldn't help me out further than that
-AT&T was showing that it was a Note 4 so not having that coming up as a Blackberry issue that some reported, so that's not it
-*#0011# shows service limited, but it is unlocked and everything is fine, the IMEI is good, and all is well but the limited service
-Put it in Airplane mode and woke it back from there after 5+minutes
-cleaned the connectors on the sim (new sim anyways so shouldn't really need them)
I'm running out of options, the only thing I can think of being the problem is that I might have started out using this phone on COD2, and when I flashed a COG2 firmware it didn't like that and so my phone's account settings didn't fully transfer.
Also I was messing around with the bands settings (*#2263#) what should they be on? Automatic, LTE/GSM only, or what?
Settings should be on automatic. One more thing to try is go for a drive with the phone, at least 5 miles from your house, and see if it does this when connected to other towers. I had this same issue years ago and it turned out to be a malfunctioning tower by my house.
If it still does it on other towers, then it may be hardware-related
kabuk1 said:
Settings should be on automatic. One more thing to try is go for a drive with the phone, at least 5 miles from your house, and see if it does this when connected to other towers. I had this same issue years ago and it turned out to be a malfunctioning tower by my house.
If it still does it on other towers, then it may be hardware-related
Click to expand...
Click to collapse
Thanks, yeah it kicks in randomly for like a minute and then dies, I take it to my parent's house (about 10 miles away) and along the way I get a good signal, but then when I reach their house, back to nothing. I was using it just fine the week prior. I partially blame Dr. Ketan, ever since installing his rom, I had multiple issues. I since uninstalled it and tried going back to stock. Any idea on what a good "safe" band setting is? I have that settings set to automatic, but if there was a good "safe" band that would be great. A common LTE tower. Even when I do connect or get connected, I can't register on that network, my phone won't let me. I've tried that. The bars drop to zero. I damaged my antenna wire (white one) and I just replaced it with a new one I purchased, but the hacked together one seemed to be doing the same quality job as the new one is. It shows the signal, but as soon as you try tying it down to a network it rejects it. I was afraid that when I flashed the stock image via odin it removed the unlock, but it was still there. I just hate that now I have a $500 pda, when it was a phone and now i'm relegated to using a f*ing flip phone.
i think your antenna cable is damaged. the only way to know that is be close to a tower, and see if your work or not.
bought and replaced with new ones, I get full bars, in my bedroom, but apparently they're tied to Tmobile since when I try to register it to AT&T they magically disappear, but when I close the app, they come back at the same strength level. I can't register them to Tmo since the sim. Yet my phone is telling me it's unlocked (*#0011#), IMEI = PASS, 1;
I think the prob is due to the different frequencies.
Your baseband would not be tied to a rom(ie Dr Ketan) Unless that rom contains Modem.bin
Your apn needs to be att if that's your Sim obviously.
International version has a different chipset. .. I know it's not your case. .
But it's open to any Sim. ..
I can say this.. I have a N2 unlocked (tmob) I run an Att Sim it works but the sig is really spotty... COD6/ COG2 may not be lining up frequency wise with your att Sim. ..
Try rolling your baseband back even further. .
Flashvetrin
Any clue on to what i should use for best results? Like 850/1900 or 900/2100? What is a good LTE band? Where could I find a map of LTE bands used by carriers, I know how to get to that secret menu and manually change it to see if I get better results?
dcoke said:
Any clue on to what i should use for best results? Like 850/1900 or 900/2100? What is a good LTE band? Where could I find a map of LTE bands used by carriers, I know how to get to that secret menu and manually change it to see if I get better results?
Click to expand...
Click to collapse
Well I would think automatic is out for sure.. the other prob would be after reboot the chipset will search for the default.. but I could be wrong.
I do not know what the numbers would be for band identification.
You may get lucky when calling Att and ask for someone in a higher tier. To give you some numbers for frequincies .
But you have ruled out hardware correct??
By putting a tmob Sim in????
Cuz I know you posted you did antenna work..
And I do know you said you get bars then it fades..
The fact it fades and doesn't lock into even a G band for example. Just leads me to believe the apn can't lock down based on the frequincie and the built in lte chipset...
It would be nice to just flash an att modem wouldn't it?? But don't even think about it.. lol you'll soft brick..
I wish I had a better solid answer you. You may just start testing those different bands and see if you get closer to a lock.
Flashvetrin
U rock, lol. Thx man
My Tricked Out N910P
But what could have happened that made it crap out like that since it was working just fine beforehand for 2 solid months on custom roms and what not? That's the frustrating part, I've been flashing different modems on my phone, but none have been successful. Apparently there are 3 different N910T, how do you know which ones to play with? I flashed N910T(3) bands, that failed, I did try N910A, obviously failed. Then I lost my IMEI number, got terrified, tried reflashing EFS in TWRP, nothing. Then reflashed COG2 bands, it came back. Is there an app on the Playstore that would definitively tell you if your network chip is damaged? I wouldn't know what to look for.
Have you taken apart the Note 4, what are all those contact points, are those antenna things? One of those were damaged, they're like folded metal spring boards with gold tips (same kind of thing that is used to install a qi receiver, same design). I took my tweezer and fixed it, but could that be the culprit, since on the surface, it seems like the network is fine. Works really well in WCDMA, but not much else. I was able to make calls using GSM only, but my signal was 1 bar and the audio quality was questionable, so I left it alone for 10 minutes on that hoping it would force a reconnect. This is frustrating, since I wasted $500 on this phone and not having it work after two months means now I'm back to a featureless phone.
Thanks for your advice thus far. Flashing different modems hasn't been working out well, I just wished I could remember what baseband version the guy had the phone on when I first got it? I thought it was COD6, it was definitely on Lollipop, but if it's a 910T(2) would I know, how would I know?
How do you flash NON_HLOS and modem.bin at the same time in Odin? I know Modem does bands, but what does Non-Hlos do? I thought i read LTE, so if those aren't in sync and on two different versions could that be the issue? I extracted them from the full TAR firmware files.
dcoke said:
But what could have happened that made it crap out like that since it was working just fine beforehand for 2 solid months on custom roms and what not? That's the frustrating part, I've been flashing different modems on my phone, but none have been successful. Apparently there are 3 different N910T, how do you know which ones to play with? I flashed N910T(3) bands, that failed, I did try N910A, obviously failed. Then I lost my IMEI number, got terrified, tried reflashing EFS in TWRP, nothing. Then reflashed COG2 bands, it came back. Is there an app on the Playstore that would definitively tell you if your network chip is damaged? I wouldn't know what to look for.
Have you taken apart the Note 4, what are all those contact points, are those antenna things? One of those were damaged, they're like folded metal spring boards with gold tips (same kind of thing that is used to install a qi receiver, same design). I took my tweezer and fixed it, but could that be the culprit, since on the surface, it seems like the network is fine. Works really well in WCDMA, but not much else. I was able to make calls using GSM only, but my signal was 1 bar and the audio quality was questionable, so I left it alone for 10 minutes on that hoping it would force a reconnect. This is frustrating, since I wasted $500 on this phone and not having it work after two months means now I'm back to a featureless phone.
Thanks for your advice thus far. Flashing different modems hasn't been working out well, I just wished I could remember what baseband version the guy had the phone on when I first got it? I thought it was COD6, it was definitely on Lollipop, but if it's a 910T(2) would I know, how would I know?
How do you flash NON_HLOS and modem.bin at the same time in Odin? I know Modem does bands, but what does Non-Hlos do? I thought i read LTE, so if those aren't in sync and on two different versions could that be the issue? I extracted them from the full TAR firmware files.
Click to expand...
Click to collapse
Heres
A simple method for COD6
And try odin 3.07
I need to think about this some more and get back to you...
This is a partial firmware.. it consists of the modem and bootloader COD6.
Also to rule out damage if you can get a T Mobile Sim put it in the device and see if it locks down a signal....
Flashvetrin
That was my next move, not having any real income but disability and little coming from that, I thought that was the next logical step too. I'll get a tmobile to go sim and try it see if it can't lock on to that, and see if that doesn't set it on the right path. Have you heard of other people having COG2 issues on AT&T unlocked? Maybe that was the problem, something there broke the connection. I don't know, but whatever it is, I can't thank you enough, you've at least given me more options to try that I couldn't think of on my own. I'll try that file.
dcoke said:
That was my next move, not having any real income but disability and little coming from that, I thought that was the next logical step too. I'll get a tmobile to go sim and try it see if it can't lock on to that, and see if that doesn't set it on the right path. Have you heard of other people having COG2 issues on AT&T unlocked? Maybe that was the problem, something there broke the connection. I don't know, but whatever it is, I can't thank you enough, you've at least given me more options to try that I couldn't think of on my own. I'll try that file.
Click to expand...
Click to collapse
You are the first of this kind that I'm aware of.. in regards to this issue..
Make sure you read the detail in if your device bootloops, to reboot recovery and flash the Rom.. if you want flash the Rom in the op that I've linked you to.
Wipe sys/dal/cach/data..
And flash it can't hurt.. [emoji16]
I really hope a Tmob Sim and or COD6 gives you results...and good ones at that.. [emoji2] [emoji106]
Flashvetrin
Got the sim card, $65 for that crap, and it didn't work. Called T Mobile customer service, explained my situation and how I was calling on another phone on another carrier and they insisted on calling me back on the broken not working phone. I guess I'm just screwed, and lost $500, which like I said, I can't afford to have. It's just so frustrating. I also tried the COD6 partial firmware, and nothing there also. I'll try t-mobile again. The only and last option I have, if possible, is to try to relock my phone and re-unlock it since there isn't any real way to tell if my GSM is damaged. I think my unlocked status got damaged when my phone upgraded to COG2, and since it's in that weird limbo state I can't use my phone. Do you know how to relock it?
Edit: When I look at my IMEI Number through *#06# it shows that the last two digits (independent of the actual IMEI number, since that matches everywhere) to the right of the "/" as 14, yet through "about device" it shows my imei version as 10. I assume that the 14 in the "06" screen is the version it's reading off the phone, could that be causing the issue? How would you even fix that? I don't know. but thanks again, you've been helpful.
A friend gave me an S5 (AT&T) with a broken screen. It had worked fine for him up to that point, and as far as I know, only the screen was broken. I successfully removed the display from a working verizon phone and put it on the AT&T.
The phone booted fine with the SIM from my S4 but doesn't have any mobile connectivity. WiFi works fine. The cell signal indicator is either the circle with the line through it, or sometime a few bars. This changes with restarts. Also, the AT&T logo does not appear in the upper left corner of the screen at any point. It almost seems like the phone is only partially reading the SIM card. The correct phone number does appear under Testing>Device Info found with *##*4636#*#*. So far, I've tried the following to no avail.
Hard reset
New SIM from AT&T
An hour on the phone with AT&T support
AT&T confirms no issues with their network or phone IMEI
Refresh ROM with ODIN (6.0.1 I think)
The SIM works correctly in both an S4 and an ancient iphone 3GS that I kept as a backup. Although after swapping the SIM around the various phones, I can no longer select "LTE GSM" as the preferred network type in Testing>Device Info. It now automatically changes back to WCDMA, but this issue is subsequent to the no service problem. All of the hardware including the motherboard look to be in fine condition with no apparent damage or water exposure.
Has anyone ever come across this issue and have a solution?
Thanks for your help. I have spent a lot of time searching for an answer here and elsewhere.
Pulled the phone back out to play with. Updated to most recent stock ROM: G900AUCS4DQC1 using ODIN 3.12
Without SIM card inserted, the signal meter consistently shows 2 - 3 bars. I'm also able to change network preferences between all available options (LTE/GSM, WCDMA, LTE/GSM/CDMA etc).
With SIM inserted, signal meter is the slashed circle. Network preference is WCDMA Preferred and will not allow any changes. It does show the correct phone number. SIM slot appears to be fine, no debris or damage to pins. This SIM is a recent replacement (one of the first things I tried when attempting to get this phone to work) and works just fine in an S4 (SGH-I337).
Has anyone ever heard of this problem before?
blinky1041 said:
Pulled the phone back out to play with. Updated to most recent stock ROM: G900AUCS4DQC1 using ODIN 3.12
Without SIM card inserted, the signal meter consistently shows 2 - 3 bars. I'm also able to change network preferences between all available options (LTE/GSM, WCDMA, LTE/GSM/CDMA etc).
With SIM inserted, signal meter is the slashed circle. Network preference is WCDMA Preferred and will not allow any changes. It does show the correct phone number. SIM slot appears to be fine, no debris or damage to pins. This SIM is a recent replacement (one of the first things I tried when attempting to get this phone to work) and works just fine in an S4 (SGH-I337).
Has anyone ever heard of this problem before?
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Click to collapse
Welcome to xda, blinky!
Just to make sure we've got all the bases covered here, did you check the device's APN settings at all? Sometimes incorrect APN settings can cause issues.
Thanks for the welcome, Apt.
I have confirmed the APN as correct for AT&T. I've tried both APN configurations commonly listed: ATT Phone and nxtgenphone. The only difference between the two are the "Name" and "APN" fields. Both of these APN configurations work fine with an S4.
I can only believe that some file is corrupted or incorrect. The phone has never been rooted. Also, the IMEI show up and matches that printed on back of phone.
I sucessfully downgraded to Lollipop with no change in behavior. I've tried the following stock ROM's with no luck:
G900AUCS4DPH4
G900AUCS4DQC1
G900AUCS4CPA2
All have been flashed with Odin, all components included (BL, AP, CP, CSC). I tried flashing DQC1 multiple times in a row with factory resets afterward, no change.
blinky1041 said:
I sucessfully downgraded to Lollipop with no change in behavior. I've tried the following stock ROM's with no luck:
G900AUCS4DPH4
G900AUCS4DQC1
G900AUCS4CPA2
All have been flashed with Odin, all components included (BL, AP, CP, CSC). I tried flashing DQC1 multiple times in a row with factory resets afterward, no change.
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Click to collapse
It just so happens that I attempted my very first root ever on a 900SAUCS4DPH4 day before yesterday. My brother had put in a drawer a couple of years ago and there it sat. Odin, OF3, then Towelroot and Fireflash to Alliance V8, maintained root through a factory reset and a pretty loose interpretation of the very clear instructions let by AptLogic (my appreciation, by the way.) I've been having the same issue occur with my bars showing up but not allowing connectivity. The difference here is that this phone hasnt had a sim in it for a year. I can't even get most of the diagnostic codes to work, just comes up "Not in network" for most of them. Any ideas on what to do next, let me know. I'm always game to learn something new, as I'm just stepping into this field. If not, I'll keep you posted with whatever I deccide to try.
Few weeks ago I moved to area with lower signal coverage. I noticed that most of the time signal on my device (Note 4 SM-N910F) is so low that I can't make a call even or send a SMS. Data is not connecting at all. When I go to town where there is better signal coverage everything is alright. I can make and receive calls normally and data is working fine.
- I am not using any case or cover for my device.
- Playing with network modes and access point names in settings didn't help.
- Nothing is wrong with my account as confirmed by network provider.
- IMEI is same as before. It is not null as in some cases.
- Same SIM card behaves perfectly well in another phone and in the same area.
- Different SIM cards doesn't behave well on my phone so it must be the phone's fault.
- Factory reset didn't help.
- I tried flashing my phone with different ROM's. I tried both stock and custom ROM's. Stock I have tried for my country (Croatia) and for different countries. Also with latest version's and few previous one's. Custom ROM's I have tried like LineageOS, Resurrection Remix, Omega etc.
- I even tried flashing modem with various basebands.
- My warranty is void.
- Guy in mobile repair shop told me it must be model related problem and he can't fix it. Also, he told me right now he is fixing another Note 4 on which IMEI crashed suddenly.
Does anyone experienced same problem with Note 4 or any of devices? Is there something else I can do about it?