[i9505] No Service No Signal No Network Help Plz - Galaxy S 4 Q&A, Help & Troubleshooting

Hello To all devs
i will try to make my story short , and sorry for my bad English
2 years ago i bought this phone i9505 s4
it was fine ,sim card work fine 4g 3g 2g everything fine
then after using lot of costums roms tw aosp miui ,
i found myself in little problem , when i reboot my phone on 3G only mode or 4g only mode , there is no service at all , even if i do a manual search
but its ok because i found i solution , i must use 2G only then i got signal then i back to 3g only or 4g only and worked fine ( i try flashing every modems in this forum with the method power + vol down + home and untick autoreboot and flash the modem twice with no solution, but its fine because i found this solution that i say : 2g only then back to 3g or 4g )
so , i use phone as normal with this trick about 1 year
then there's the big problem :
few days ago , My phone get signal only on 2G only mode , no 3g no 4g , even if try my trick that i say above , but no luck
only 2G work ,
i try to use differents roms and modems ( CM11, 12 , 13 , TW imprumium , Omega rom , also try deferents modems ) but no luck
, i try to use my card on other phone (my sister phone i9500 s4 ) its work fine 2g 3g 4g
i try use diffrents card but no luck
then here's the big big big problem :
yesterday , the phone network is dead , no 2g no 3g no 4g , i didnt do nothing to my phone , all this by itself ( the 2nd and 3rd problem ) now its like an ipod ,
here's some info that my help you guys giving me a solution :
-Imei Ok (dial *#06# giving the imei and matching the one under my battery )
-My phone never dropped or get something like that
-i try to open my phone to check if the antenna is pulled off , but its fine (after getting no network at all)
- i checked sim slot its fine
- i try flashing modems using adb with the commands that copie the file modem.bin to the partition of the modem in the phone with no luck
-i try flashing modems using mobile odin with no luck
-sim slot worked fine because when i use cm 11 and insert my sim card i get on the notification panel ( no service / MY CARRIER NAME)
- on cm11 when i dial *#*#4636#*#* and enter PHONE INFORMATION , normally when my phone was oki get on Signal Strength (signal strength : -xx dBm ) now no matter if sim inserted or not i get ( signal strength : 2147483647 dBm )
- wifi gps bluetooth everything on the phone is working fine , exept the network
so plllzzz help me , i can't afford another phone , i am just i student , i don't have other phone , now i am just using my huawei 3g modem on my labtop to get acces to internet and phone calls and messages

Related

CM 4.2.15.1 - No more 3G after putting ON/OFF Airplance mode

Hello All and thanks for the amazing work.
I just felt in a problem that I never saw before :
I run CM 4.2.15.1 on the HTC Dream (adp1).
Yesterday I put the Airplane mode to ON, then all Wifi, 3G, GSM went down (as expected)
Today, I put the Airplance mode to Off ; Wifi and GSM is fine, but I can't get a 3G connection.
I tried the sim in another phone which gets the 3G, so I assume the problem is not with the sim, not with the network.
Then I completely wiped out the phone, including the sdcard partitions (fat32, ext4 and swap), then re-install CM 4.2.15.1 without any success.
Would you have any suggestions ?
I have attached the output of the command "logcat -b radio"
PS : sorry if I double posted or if I posted in the wrong part of the forum
guyiom
Ok, I fixed it.
I was running on vodafone netherland network.
the apn settings were right from the beginning.
I decided to switch off phone, and remove battery. after 2 hours, i switch on phone and 3g were back.
I don't know if the shutdown with no battery helped.
Anyway thank you all.
Ciao
guyiom

i9505 dont connect 3g

the device has changed imei. 3g not connected in any way . im several different custom rom instaled but never connect 3g network . only 2g gsm connected. how to fix this problem help me please.
Does not anyone to help me
Had some problem like yours just now. No matter how I flash my phone, changed my modem, it is stuck at 2G (Edge). Then I went to Settings>More networks>Mobile Networks and changed my network mode from LTE/WCDMA/GSM(auto connect) to WCDMA/GSM (auto connect) and then it becomes H+ again! Hope it helps!!
Unfortunately, not the solution. I m selected just a WCDMA I get the message "no network" I load different roms but Unfortunately, the same result
I have the same problem and I've been all day trying to fix it without success, the problem started after installing the 4.3 rom I9505XXUEMJ5.
Has anyone who found a solution to this issue ?
help please
no 3g
me too i have the same problem, i dont have 3g connection after flashing any custom rom

Bootloop (restart , only logo) lg e900 problem solved.

If you lg optimus 7 e900 have this problem - still restart and only show lg logo , this mean that you phone have installed wrong radio firmware version . Newest radio firmware ( that support tethering ) have some bad structure and it is not hardware problem but firmware.
If you have enabled Pin secure code and enabled "automatic mode " in MFG at modem setting where you choose WCDMA and GSM band ,
phone will be restart after next turn on the phone . So you must install older firmware that have older radio firmware , of course it can be update to wp 7.8 ( tango ) . First install this older firmware :
LG-E900AT-00-V10c-268-FFF-OCT-07-2010+0_DZ_PROD.dz ( with lgdp2 v33 or v36 )
and you can update this firmware via Zune to 7.8 wp tango . This firmw. have not some languages but it is easy to install ( find oder posts about modification registry to change language ).
Second solution to fix restart problem - you can change Modem setting at MFG and choose yours band (your operator of course , for example orange poland - choose wcdma 900mhz , or 2100mhz , gsm 1800 or 900mhz , if you enable automatic mode and enable pin security for sim , phone will be restart again - bootloop problem ) .
Another solution is detachment upper (second) mainboard from primary mainboard phone ,and switch on the phone without this second
mainboard (wait 40 second , you see phone stop restart ) . This is illusion that problem is wrong upper mainboard .
Next connect upper mainboard to primary mainboard and switch on phone . If bootloop problem return , change modem setting at MFG
with your band .
Best method to fix - restore NV items , not difficult (see my another topic ).
Thank you!
Sent from Board Express on my Nokia Lumia 1020. Best phone ever!!
Note to noobs: DON'T PM ME WITH QUESTIONS. POST IN THE FORUMS. THAT'S WHAT THEY ARE HERE FOR!
Thank you sir...
i just got my fone with these headbleeding problem...
thank you, i`ll try these method little later.
i`ll post fotos for further development later

[Help] Mobile data " ! " in Cyanogenmod 12

Basically my problem is: i have signal, but when i active "mobile data" ( or when i dont ) there is a sign " ! " and mobile data seems to not be active ( i dont get h, 3g, h+ or lte)
i was using Cyanogenmod 12.1( cm-12.1-20150531-NIGHTLY-klte ) and it worked fine, i installed HTC ROM ( it came with a kernel, COULD BE THAT THE REASON? and then i try to install CM ( any version ) following installation guide in thread, and i dont get mobile data..
i active it or desactive it, and it still displays " ! "...
It works somethimes ( dont tried too much, but enought ) and when i start the phone, first start after installing CM12, it works, but if i turn it off, and try to activate it again, IT DOESNT, THE PROBLEM STARTS THERE..
so, WHAT COULD BE?
Could the kernel be the reason?

G530T Unlock fail(kernel error), no signal, can't make a call.

I bought the unlock code for my phone , but after activation , the device error . I have another rom but still do not have your phone 's network signal . insert sim to get contacts , but still can not call. (sim card inserted into the machine to recognize , but no signals and no call is)
There G530t phones were unlocked by successfully code and can use it normally, but mine was different. When entering the error code on it ( black screen and have an inscription above ) , kernel error . reinstall the new rom are okay, but no phone reception on the carrier . I do not know what to do ..
ask for your help .i live in viet nam.
Use Odin restore stock firmware
Sent from my SM-G530T using Tapatalk

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