Signal "unknow" on my N4, Help - Nexus 4 Q&A, Help & Troubleshooting

Hi, im having some issues with my signal on my N4...it randomly started a few days ago. This is what it happens:
While my N4 shows to be conected to my 2G / 3G network, sometimes (very frequent now) it totally drops the conection, the signal triangle seems empty, and going into airplane mode and coming back wont fix it, and when i log into the *#*#4636#*#* menu, it shows "Unknow" on a few options even on the preferred conection type, and i cannot choose any option there because it will go back into Unknow. The only solution is rebooting my N4, but this is just a temp solution because the problem shows up again not too long after its ON.
I have seen that if im constantly sending and recieving data, it keeps it conected longer, like when streaming a video. This problem started to occur while i was in baseband .48 with stock 4.2.2 rooted/unlocked. I did a complete wipe, and reinstalled 4.2.2 stock, but this time with .54 baseband, and the problem persist.
its been hard for me to find old posts about this problem in particular, seen other people posting about alike problems, even losing the imei number, but that doesnt happens to me, i still can see my imei number on *#*#4636#*#* even when everything else there shows unknow. I will attach an screenshot, its not in english, but i think you guys can get the idea.
details: My N4 didnt drop or anything, i already tried removing the simcard to check it, so i have no idea what to do now. I appreciate any help

Maybe your SIM card is bad or not seated properly.

stevemw said:
Maybe your SIM card is bad or not seated properly.
Click to expand...
Click to collapse
Its well seated, and yes, a bad simcard is another option, but i wont be able to check that till tomorrow i guess, but just wanted to make sure this doesnt seems hardware/software side

Related

Phone signal (htc TyTN)

Hello guys,
I am very annoyed with my device the last two days. For some reason the signal goes away and I can be hours without getting any.
I have not installed or modified anything on the device the past two days, even thoughI now recall changing the name of the USB, from the tweaking tool HTweakC2.0. Neither I had any accidents like dropping the device or anything.
Any suggestions why this is happening and how I can fix it?
If you have 3g, its more likely a network problem. Try switching it down to GSM from auto and see if that works.
If so, try switching back to 3g in a few days or in a different location,
And how do I do that my friend? Because I tried the way I thought I would, from phone settings but I couldn't see where you specify not to use 3G.
Thanks
Did you do this:
Start\Settings\Phone\Band
GSM/UMTS band drop down menu
Select one of the 2 GSM options. (UMTS is the 3G setting)
evolish said:
And how do I do that my friend? Because I tried the way I thought I would, from phone settings but I couldn't see where you specify not to use 3G.
Thanks
Click to expand...
Click to collapse
This sounds like an either network issue or a settings issue.
Now, I am assuming, since you did not mention that your phone did in fact work but not the data. Correct?
If that is the case, please, please follow what Ach2 recommended. If not then go back to your manual or check the wiki for instructions.
If you had no reception whatsoever. Then either the radio is off, or something that you did is turning it off. Have you checked if the phone tried to make a connection? That would be the antenna icon with either an exclamation mark or a three dots. Or do you just get an "X" with an exclamation mark along side that.
If you had no access to anything unless you rebooted it is still probably your phone, but what has your carrier said when you called them? Any problems?
Well, my phone was working just fine, but then something happened and no signal. (I didn't drop it or anything.. out of the blue that happened).
I hadn't tried that 3G thing, because I was actually looking for something named 3G, so I will try it if that problem persists (I did a hard reset and it seems that it's okay now).
And it must be the device, because I tried my Nokia 7610 and it had signal on that.
I hope I won't have to try it and the hard reset worked, but if it happens to me again, I will try it.
Thank you all!
doesnt get signal again.. searching and searching..
Edit:
Signal full: can't call or someone to call me!
The whole thing is ****ed up. Before i guess that it said that it had full signal but it didn't because it acted just like it would if it didn't. Now it's just searching and searching for network without finding any.
How could that happen, and how can i fix it. thanks.
try a hard reset to see if that solves it.. if that doesnt work try a complete provider rom.. if that doesnt work then you could try just flashing a new radio.. if none of those suggestions work then maybe take a look at this thread http://forum.xda-developers.com/showthread.php?t=286755 and do some heavy reading.. and alas, if that doesnt work then your device is probably toast...
Thank you. I have tried the hard reset but no it didn't work. As for the others, i prefer to take it back and ask for the guarantee since i have guarantee for two years. thanks anyway.
Alright. But keep in mind that you never gave us any specifics really. Made it hard to try to troubleshoot.
If you can get it replaced then go right ahead. It might be easier.

Randomly presenting SIM pin code screen when waking phone from standby

I've had a repeated problem (around 4 times so far) where my phone mobile radio must have died/reset while the phone was on standby with the screen off. When I wake the phone I am presented with the SIM pin code request screen. Usually entering the correct code reserects the phone. However last occurance it refused to accept the correct code so required a reboot to get it to work again.
Anyone else seen this?
I'm on O2 in the UK fyi.
Sent from my Nexus S using XDA App
ok I'll guess the answer myself...
I guess this is related to the random reboots people have been experiencing primarily on calls. I note some people say the phone can reboot while on standby, since I 'had' SIM pin code enabled this was as far as the reboot while on standby was getting. I've removed the pin code request which will mean I guess the phone just completes the reboot without requiring my input.
I'm hoping this is fixed with any update to the reboot during active calls issue that google confirm they have repeated themselves.
I've just had this happen on my Nexus S. What service provider are you with? I'm with Tesco (O2).
I'm O2, 30day rolling contract. Basically I've disabled the SIM Lock now so hopefully until the standby or call (not experienced this one yet) reboots occur the phone will just restart without my intervention required now.
Same here. After connecting the phone to the charger yesterday evening, this morning the SIM Enter PIN screen showed up (like the phone did a reboot overnight).
After checking the system services, I noticed the phone hasn't rebooted, because the services where running for more than 12 hours.
So the SIM Enter PIN screen showed up without reboot. I think a no-signal situation has preceded before this screen showed up (and maybe the GSM module has got a total reset).
This is on Telfort/KPN, The Netherlands.
Interesting ArnoutVos.. these were my original thoughts too since every time I've had the phone next to me and not seen it reboot just present me with the Enter SIM Pin screen. I just naturally assumed I was getting the at standby reboot some people had seen.
I've got the same problem on t-mobile. Probably about 6 times in 2 weeks so far. I've also had it where the signal bars at the top just show grey with a little cross by them and the only thing i can do to sort it is restart the phone.
It also drains the battery like mad whilst in this state.
I also had this 2 times (only had the phone 5 days)
That is, i turn on the screen and i have no signal, I dont think my phone has been restarted, as i dont see the sim pin screen, it has just lost the signal/radio died. And nothing seem to restore the signal, i've tried switching from 2g and back, only thing i found to get the signal back is a restart..
i have had the same problem with the signal dropping out on me all morning. sometimes i can make calls sometimes i cant and sometimes rebooting helps sometimes not. today i had the sim card replaced just to make sure and i thought it helped but it just did it to me again. its really frustrating...
I had the same problem about 10 times during the last week. It seems to correspond with the creation of Radio_dump files in the /sdcard/ dir.
Nexus S, Android 2.3.3 Root
I get the same issue on A1 in Austria, not sure what's causing it, but it is annoying.
Let me give my 2 cents:
Getting this same thing happening all through the various combinations of roms and radio firmware, device is Nexus S 9020T, network is T-Mobile in Croatia.
CM 7 with I9020XXJK8 radio
CM 7.0.2 with I9020XXJK8 radio
Blandroid 2.3.4 with I9020XXJK8 radio
Blandroid 2.3.4 with I9020XXKB1 radio
Sometimes there is no pin input screen, so if I don't notice the little icon in the notification bar I'm completely unavailable to calls and sms's. During the time if the Wifi is on it will continue functioning normally, and radio dumps get created.
Will give newer radio firmwares a try before I start crying in my pillow.
Edit: don't know if it happened with stock android 2.3.3 which came on the device, didn't have it on stock for more than 15 minutes.
Alas and damnations, again mobile network radio fail, this time with
radio I9020XXKB3 and blandroid 2.3.4, so issue still present.
Only fix is reboot, airplane toggle does nothing. Does anyone else in europe experience this with a USA T-mobile version nexus?
Giving I9020XXKD1 a try, still with blandroid now 2.3.4p1. Keeping my fingers crossed!
Well well...seems to be a common pattern, as its happened to me a few times also in the last week. First time ive experienced it also...just over a week.ago. cant remember which rom i was using as i.change quite often. May have been a new 2.3.4 mod or just 2.3.3 im not sure. Not a good thing obviously but not a big issue so far. Hasnt happened again since about 3 or 4 days ago now.
Sent from my Nexus S using XDA App
Such problems can occur when the SIM is disconnected from power or from reset line or has technical difficulties making it reboot.
Power or reset line can be disconnected if you have your connectors inside your Nexus bent. This can be tested by shaking your phone heavily in all directions. Be careful not to drop it. If the Enter SIM or the Enter PIN dialog appears, It's most likely a mechanical defect of your phone.
If the SIM is broken it may be reset itself. You can't really test this. Maybe something appears in the system or radio log. Another way would be to place your SIM in a known-to-work phone. If similar problems occur it's a broken SIM. You should call your provider to send you a new one.
bot47 said:
Such problems can occur when the SIM is disconnected from power or from reset line or has technical difficulties making it reboot.
Power or reset line can be disconnected if you have your connectors inside your Nexus bent. This can be tested by shaking your phone heavily in all directions. Be careful not to drop it. If the Enter SIM or the Enter PIN dialog appears, It's most likely a mechanical defect of your phone.
If the SIM is broken it may be reset itself. You can't really test this. Maybe something appears in the system or radio log. Another way would be to place your SIM in a known-to-work phone. If similar problems occur it's a broken SIM. You should call your provider to send you a new one.
Click to expand...
Click to collapse
Those are some good advices, thank you.
I would rule out bent pins as the cause and also no amount of shaking produces the problem, and the problem happened always when the phone was on the desk (and connected to wifi for what its worth).
However, a broken sim - maybe. I haven't had any problems with it so far in any of the 2 previous phones and I'm careful handling it, but the radio log suggestion is excellent.
I will definitely go through it next time it happens ( its "adb logcat -b radio" so others don't have to search for it)
Does anyone got a solution on this?
I found today about 10 - 15 dump-files located in my SD-Card.
Its probably caused by an App which we all use... but i couldnt figure out which one...
is there a dump-debbuging programm which i can use or something else?
It's kind of interesting
Using a Nexus S in Austria (T-Mobile)
I've "solved" this by disabling the PIN altogether and setting up a script to run when the network is changed to delete any radio dumps:
http://forum.xda-developers.com/showpost.php?p=17114685&postcount=26
It doesn't seem to matter which ROM, radio or kernel I use....I wonder if this is a hardware defect?
sorry to resurrect an old thread, but this is to report that on my sns on pete alfonso's 4.0.3 rom and matrix 14.5 CFS and KF1 + KD1, I still get this problem of the radio dying.
has anyone found a solution?
to be more precise, the mobile network connection (calls and data) randomly dies and the only way to get it back is to restart phone. airplane mode doesn't help.

Nexus S total network loss.

So my girlfriend's Nexus S has been losing the entire voice and data network and going into no service mode, no biggie at first, just cycle airplane mode, then it went on to rebooting because you would select airplane mode from the power off menu but it would not check the box in the wireless settings menu.
After the reboot the box would show checked and airplane mode could be disabled and the service would resume. The the phone started getting stuck in airplane mode and not even rebooting it would bring it out the first few times, then it got to the point of resetting the phone, a wipe cache/data reset didn't fixed it. So off to T-Mobile for a new sim card. Rebooted the network immediately. And as of last night its back in full force and now not even a new sim will resurrect the network.
Have tried wiping, reflashing stock 2.3.3, new sim again, multiple resets, had to get an toggle widget to get it out of airplane mode and still a dead network, all this time the network in the *#*#4636#*#* menu showing unknown and is not able to be changed and reverts back to unknown immediately, OEM specifics settings button is greyed out and you are not able to disable the radio either.
While I'm going to call Samsung on Monday and I guess send the phone off, I worry about mine because it too does it but only once a month or so, but I do constantly have issues resurrecting the phone from airplane mode at times because the box will not be checked in the wireless settings menu but I can see the airplane instead of network bars, problem persists with reboots sometimes.
I also would like to add that even when the box is not checked in the wireless settings menu for airplane mode, if you click it it just hangs forever and will try to select but never will and stays grey like its turning everything off, but if the scren goes off its like you never tried.
Has anyone else seen this? I have seen a lot of people with data network issues or having to reboot to get voice network back but nothing as bad as I'm experiencing.
Both our phones are and have been completely stock and unmodified.
Thankfully we still have her Vibrant and in case I need to send mine in my Nexus One.
Sent from my Xoom using XDA App
Have you tried restoring from another persons' pre-made nandroid backup?
This over-writes the radio firmware, you should give it a go!
I also found that I had problems on 2.3.3, however reverting to 2.3.2 gave me no problems!
Just contact me if you need any help restoring from a nandroid backup or finding the 2.3.2 backup files
cdaly985 said:
Have you tried restoring from another persons' pre-made nandroid backup?
This over-writes the radio firmware, you should give it a go!
I also found that I had problems on 2.3.3, however reverting to 2.3.2 gave me no problems!
Just contact me if you need any help restoring from a nandroid backup or finding the 2.3.2 backup files
Click to expand...
Click to collapse
Is that true? I am just on the verge of calling samsung. My phone won't connect to or display any available networks, and is pretty much now dumbed down to a small tablet. I've tried everything except another persons nandroid backup. I've been told to stay away from flashing another persons... but I'm really desperate.
If you could provide me with a backup, that would be awesome.
I'm having identical problem.
It was working fine yesterday, look back to it and now it's got no mobile network, nothing. Just the no bars and cross symbol. I've tried wiping dalvik cache, reflashing the radio, wiping data/factory reset, reflashing the rom, restoring with a backup (Backup of when I first rooted the phone) and still no signal. Nothing has worked..
Anyone got ideas on how to fix this issue?
Gawthorne said:
I'm having identical problem.
It was working fine yesterday, look back to it and now it's got no mobile network, nothing. Just the no bars and cross symbol. I've tried wiping dalvik cache, reflashing the radio, wiping data/factory reset, reflashing the rom, restoring with a backup (Backup of when I first rooted the phone) and still no signal. Nothing has worked..
Anyone got ideas on how to fix this issue?
Click to expand...
Click to collapse
Can you search for and view available networks?
This sounds like the CM7 powerwidget problem (3g/2g) I used it and I loss all network, phone process will crash every second, however if your phones are stock I can't think in anything causing it.
For CM7 you'll have to reflash and delete userdata or edit the sql database for the providers and change a value to 0, but you need root.
When I went to *#*4636.... my preferred service was "unknown" too, but now it is OK.
Try to dail:
*#*#4636#*#*
and find your network information.
ketchup539 said:
Can you search for and view available networks?
Click to expand...
Click to collapse
Nope. Sits their 'searching' but nothing shows up.
In, *#*#4636#*#*, it gives little to no information. Just says nothing for current network and for GSM disconnects it has,
Sate: DvInactiveState
disconnected with last try
at 9:59AM
fail because No Error
And that time never changes, stays at 9:59AM.
As my above post suggested, I've tried doing a factory reset and reflashing. I don't think I use CM.. I flashed with Oxygen 2.1.6 (using it's kernel) but I restored to Oxygen rom and trinity kernel after it didn't work.
Gawthorne said:
Nope. Sits their 'searching' but nothing shows up.
In, *#*#4636#*#*, it gives little to no information. Just says nothing for current network and for GSM disconnects it has,
Sate: DvInactiveState
disconnected with last try
at 9:59AM
fail because No Error
And that time never changes, stays at 9:59AM.
As my above post suggested, I've tried doing a factory reset and reflashing. I don't think I use CM.. I flashed with Oxygen 2.1.6 (using it's kernel) but I restored to Oxygen rom and trinity kernel after it didn't work.
Click to expand...
Click to collapse
That is the EXACT same problem I have. I too was using Oxygen 2.1.6 and lost all connectivity. I've just locked my bootloader and flashed back to stock ready to send for repairs. That rom must be doing something >.>
Oh no
I didn't want to send it back D:
Anyone got some suggestions that I haven't tried?
Gawthorne said:
Oh no
I didn't want to send it back D:
Anyone got some suggestions that I haven't tried?
Click to expand...
Click to collapse
I've been trying *everything* for last past few days. Nothing is working. That shouldn't stop you from trying though. Just stay well away from ODIN and those i9023 files, I've seen bad things.
ketchup539 said:
I've been trying *everything* for last past few days. Nothing is working. That shouldn't stop you from trying though. Just stay well away from ODIN and those i9023 files, I've seen bad things.
Click to expand...
Click to collapse
Cheers, going to a mates place soon to see if he has anything up his sleeves to try and fix this annoying issue..
If we somehow fix it, I'll be sure to post how we did here.
Gawthorne said:
Cheers, going to a mates place soon to see if he has anything up his sleeves to try and fix this annoying issue..
If we somehow fix it, I'll be sure to post how we did here.
Click to expand...
Click to collapse
Ok, it'd be great if you worked something out. I'm so glad i'm not the only person with this issue!
Anyone had any breakthroughs? *hopeful*
I wouldn't call it a breakthrough but I got somewhere!
Ended up putting a extremely thin piece of wire into the external antenna port at the back of the phone. Wasn't too keen on doing this, but my phone now has reception isn't stuck at the dreaded -113dbm.
The reception isn't good, but it's enough to send texts and have calls.
Although the area needs quite good reception for me to receive anything, and it's extremely sensitive. To get 3 bars in a place where I usually get full bars, I have to be outside. While inside it's reduced to none or 1 bar, which is enough to send/receive texts and a sort of lagging phone call (did a few tests). As mentioned before extremely sensitive. The phone seems to like it better when it's up-right. In the middle of the CBD at Brisbane I get full reception and 3G, which is fine but in the places where you usually get 2 bars, you get no signal at all, unless you're outside.
So this is hardly a fix. I will most likely be sending it to Samsung to get it actually fixed. Either that or get it fixed the same day and pay probably close to $100 so I don't have to wait 2 months waiting for Samsung to twiddle their thumbs.
Thats awesome! But I'm going to post mine off to Samsung USA tomorrow, which will take forever considering international shipping. Where could you get it fixed same-day? I'm going to try this wire thing
So it can't be a software issue, but maybe the rom overloaded the antenna and fried it or something? I'm glad we've got that far.
I've seen that nexus s has a problem like the iphone, the antenna gate. Try take the phone with the left hand looking to no touch the rear of the softkeys
Inviato dal mio Nexus S usando Tapatalk
RcrdBrt said:
I've seen that nexus s has a problem like the iphone, the antenna gate. Try take the phone with the left hand looking to no touch the rear of the softkeys
Inviato dal mio Nexus S usando Tapatalk
Click to expand...
Click to collapse
Its more serious than that my friend! Thanks anyway
I got a quote from a place in Brissy called "FixMyMobile" and they said if they can fix it, it will cost $99. Although I'll get quotes from different places (if I find them) and see what they charge however I don't think I will be able to get cheaper, most likely around the same price..
So I may do that to not wait the ridiculous time it will take to get it back from Samsung.. Not sure on places in NZ though.
Yeah it seems like a hardware issue definitely. I eventually reverted the phone back to stock everything and it still happened, so that there shouts hardware issue.

No network after installing CM7.1

HI ALL, Im pretty new here. after so many tries finally i was able to install cm7.1 on my defy. but im facing some issues. before the installation i forgot to take a back up of the existing ROM so if i have to go back to the previous ROM how to do that? and also there is no network coverage after the installation. please please anybody help!!!!!!
Have a vibrant myself but I'm helping a buddy get cm7 on his defy and after flashing didn't have a network signal. I looked at the cm7 install guide and it referenced a defy base band switcher app for better coverage. Had him try that and he got his data connection back. Might want to look into it or read the guide.
Sent from my SGH-T959 using Tapatalk
hilsa1987 said:
HI ALL, Im pretty new here. after so many tries finally i was able to install cm7.1 on my defy. but im facing some issues. before the installation i forgot to take a back up of the existing ROM so if i have to go back to the previous ROM how to do that? and also there is no network coverage after the installation. please please anybody help!!!!!!
Click to expand...
Click to collapse
If your previous ROM was stock that came with your phone, flash the corresponding SBF file from the sticky on the Dev section to go back to stock. If it was some other custom ROM, wipe data/factory reset in CWM and flash the old ROM. Make backup of your apps using Titanium Backup if you want.
For CM7 network issues, choose the correct baseband from Defy Baseband Switcher. For India, pick anything that is 900/2100MHz...
Also, make sure you have read as many guides and First Posts on important threads as you can. Here is a collection of good threads you can read for these questions, and more that you might get later:
http://forum.xda-developers.com/showthread.php?t=966537
http://forum.xda-developers.com/showthread.php?t=1033654
http://forum.xda-developers.com/showthread.php?t=1065798
http://forum.xda-developers.com/showthread.php?t=1216982
http://forum.xda-developers.com/showthread.php?t=1450026
Hello! Noob here as well.
I installed CM7.1 stable on my Defy (running 2.2.2 foryo) 2 days ago.
All went well, except that network connection is lost after a couple of minutes after boot. Sometimes it takes an hour or two but I still end up with no connection.
I've googled everything about it in the last days. I played with the Baseband Switcher and although most options in the BB Switcher work right after a reboot, it still looses the signal after a couple of minutes.
One thing I noticed, when the signal is lost, trying to set the "Airplane mode" will fail. If trying to set Airplane ON - the notification icon will not replace the signal icon and will also be unable to set Airplane OFF (since it didn't finish turning ON).
I also noticed that if I force stop the "Dialer" system app, then the Airplane notification ico shows up, but still there's no way to turn it OFF (it's disabled in the menu). After a reboot Airplane can be set OFF and everything works for another small period of time (..until baseband crashes again?).
Hope it makes some sense. I'm quite sure this is not an operator issue or hardware related, since my Defy worked just fine before CM7.1
Also, I am located in Romania, operator is Orange.
ZeDevil said:
Hello! Noob here as well.
I installed CM7.1 stable on my Defy (running 2.2.2 foryo) 2 days ago.
All went well, except that network connection is lost after a couple of minutes after boot. Sometimes it takes an hour or two but I still end up with no connection.
I've googled everything about it in the last days. I played with the Baseband Switcher and although most options in the BB Switcher work right after a reboot, it still looses the signal after a couple of minutes.
One thing I noticed, when the signal is lost, trying to set the "Airplane mode" will fail. If trying to set Airplane ON - the notification icon will not replace the signal icon and will also be unable to set Airplane OFF (since it didn't finish turning ON).
Click to expand...
Click to collapse
I have the same issue, except that it is much rarer (ranging from every other day, to even a month between such incidents). It can also be triggered sometimes when I turn off Wi-Fi and the device tries to regain mobile data connection (not sure if it matters, but I set the network mode to 2G on my phone). The battery drain is increased if this occurs without the user noticing - the phone seems to search in vain for the signal.
Using the latest SEA baseband on M1 (Singapore).
kaninabu said:
I have the same issue, except that it is much rarer (ranging from every other day, to even a month between such incidents). It can also be triggered sometimes when I turn off Wi-Fi and the device tries to regain mobile data connection (not sure if it matters, but I set the network mode to 2G on my phone). The battery drain is increased if this occurs without the user noticing - the phone seems to search in vain for the signal.
Using the latest SEA baseband on M1 (Singapore).
Click to expand...
Click to collapse
I get this problem too. Happens every so often when I'm at work. I've always put it down to a bad signal where I work but as I always turn the wifi of before leaving home it could be down to that. If anyone has any solutions it would be great
Ok, a little update on this:
At the office now, further playing with the Baseband Switcher, I ended up selecting "Italia RT 2.51.1" which has the same 900/2100 freq that my operator requires and it seems to work. Even getting 3G.
If "2.51.1" is some sort of protocol version, then all the other options I've tried were either 4.x or 3.x or even 2.21.x ..and none of them worked for more then 30 minutes.
Also, not sure if signal strength has something to do with this because I did a test, going to the basement of my office in order to loose signal, then back up and it worked - got the signal back, without reboot or anything.
Also, I would really appreciate if someone could explain in a few words what those version numbers mean (ex: "Italia RT 2.51.1"), as I know nothing about gsm bands and protocols.
UPDATE: Back home, lost signal again, after a whole day without any problems. Funny.
UPDATE 2:
So after much google searching and trying literally every option in the Baseband Switcher, I switched my SIM card with a friend's SIM and guess what.. IT WORKED! Even more, when I inserted my original SIM into the other phone after a few minutes it lost signal, too! It was a faulty SIM, that has just started to "die".
Conclusion:
- Keep playing with that Baseband Switcher until you get something that works for you.
-Make sure your SIM is working properly in other phones, otherwise ask your operator to replace it.
Thanks and hope this helps.
ZeDevil did you try using other Basebands to see if you get better battery life ?
cknro said:
ZeDevil did you try using other Basebands to see if you get better battery life ?
Click to expand...
Click to collapse
Not really. As long as you have a working Baseband selected (with correct frequencies) I don't think it matters.
But overall CM7.1 has better battery efficiency then stock ROMs, or at least that's what I felt.
update:
Well, I had a play with the baseband switcher, realising i was on 'international'. I switched to uk t-mobile and from there it seemed to work much better. A slight blip at work today (think it's a bit of a signal black-spot though) but restarted and it seems fine again. I've also just realised it's gone 37hrs since its last charge too
Strangely my other problem, the backlighting on the soft-keys not working, fixed itself at the same time. dunno if these two things are linked or not?
i use the CEE one.

Samsung s4 i9505 2g not available ???

I bought my used S4 and had problems with network. did a few things and didnt solve problem.
In my country (Bosnia and Herzegovina) 3g network isnt available everywhere, and on places where signal is low i am loosing my network..
In past few days i did and tryed next:
- Rooted
- recovery installed
- installed slimKAT 4.4 and gapps
- installed new baseband
- installed app Network from Play store and set my network to GSM auto (PRL)
- tryed typing secret codes to enter networs setups *#*#4636#*#*
and nothing solved my problem to enable 2g network...
When i am using 3g in a place which has good coverage of 3g network everything is fine, no drops... great...
When i maunaly set my network to 2g i lose network nothing happens, emergency calls only...
How to enable 2g?? installing new baseband? which one supports 2g on S4?
Solution
After a while it proved that problem is with the base band on the motherboard.
Removed hardware part of the base band , and put another one... it was a bit difficult because from the other side of the motherboard is ROM and because of the heat it removed also, so it had to be glued again.
After a while i installed again SLIMKAT and problems continued.. Phone froze, wasnt able to call because ACTIVITY PHONE ISNT RESPONDING, and it froze the phone every few calls, and it had to be rebooted, even that didnt helped sometimes, so batery had to go out.
Wiped Cash Partition, nothing happened, Wiped Cash and Dalwik, nothing happened...
Found somewhere that CONTACT SYNC and Facebook Contact sync disableing will help and guess what, it did...
Disabled all Contact Sync and for now everything is ok...
prdes said:
After a while it proved that problem is with the base band on the motherboard.
Removed hardware part of the base band , and put another one... it was a bit difficult because from the other side of the motherboard is ROM and because of the heat it removed also, so it had to be glued again.
After a while i installed again SLIMKAT and problems continued.. Phone froze, wasnt able to call because ACTIVITY PHONE ISNT RESPONDING, and it froze the phone every few calls, and it had to be rebooted, even that didnt helped sometimes, so batery had to go out.
Wiped Cash Partition, nothing happened, Wiped Cash and Dalwik, nothing happened...
Found somewhere that CONTACT SYNC and Facebook Contact sync disableing will help and guess what, it did...
Disabled all Contact Sync and for now everything is ok...
Click to expand...
Click to collapse
This didnt helped, activity phone still remained...

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