I noticed that my galaxy was sluggish & decided to preform the solution here: hemorrdroids.net, speed up your Samsung galaxy S
now in the process, i got it wrong several times whiles flashing with the odin. when I finally got it right and reinstalled the firmware, the phone displays a no service notification, but show the name of the network chip in it. no signal bars as if it were locked. I bought it as unlocked phone. now I cant even search for a single network in my country. when u do a manual search, it returns nothing. if u try the dialer it says not registered to network..
does anyone know how to get my signal a GPS working?? please!!!!!!!!!!!!!
Hmm... I've got the same problem as you... Flashed docs to my Galaxy S Yesterday and now it show no service notification.... Anyone who have a got an idea?
I am also facing the same problem. Any one who has solved it ?
Got the same problem, from 1 day i have notification (no service)
Got the same problem plz plz some one helpp
Not sure if it's the same problem you folks are having, but there's a thread on here entitled "Problem with Airplane Mode on Epic after installing midNight ROM" that describes a problem with no signal after a ROM flash, and a solution via using Odin to update just the modem.
I would post a link, but the forum here won't let me because I don't have enough posts. Your mileage may vary, but the symptoms sound similar so it might give you a place to start even if the fix doesn't fix you.
I too am having the same problem. It seems that my Phone (Galaxy SC-02b) does not recognize the modem/internal antena.
I installed the Darky's Rom on it, and it runs great. Except the signal part. I can flash it back to the original, but I want to see if I can make it work.
I think it's just a matter of picking out the correct modem tar, but I can't find the right one. My phone is a little bit odd, It's a Japanese Galaxy, so not sure if I can find it here. Unfortunately my Japanese is not good enough to go scouring the japanese forums.
Thanks for any help.
Hey Yefimenko what 3G bands are used in Japan 1900/850 or maybe 900/2100 or 1700/2100 ? Can you find that out ? then you need to flash modem that supports that , Europe support 900/2100 US/Canada/Australia 850/1900 and AWS 1700/2100 Tmobile US /Wind? mobilicity Canada
Hitec
We've been through all of this before the Japanese phones will only work with the Japanese kernel. Symptoms are usually sin not recognized and no radio signal. QUOTE=yefymenko;11612862]I too am having the same problem. It seems that my Phone (Galaxy SC-02b) does not recognize the modem/internal antena.
I installed the Darky's Rom on it, and it runs great. Except the signal part. I can flash it back to the original, but I want to see if I can make it work.
I think it's just a matter of picking out the correct modem tar, but I can't find the right one. My phone is a little bit odd, It's a Japanese Galaxy, so not sure if I can find it here. Unfortunately my Japanese is not good enough to go scouring the japanese forums.
Thanks for any help.[/QUOTE]
Sent from my SC-02B using XDA Premium App
Either the phone.apk is bad or the modem is incompatible.
You could try the http://romkitchen.org/ and make an update with different modem only.
If your Samsung Galaxy S displays no network/no signal, or emergency calls only, try the following things:
1. flash the device again with the modem image (download the firmware of your device from samfirmwares.com, delete everything from the .tar file except modem.bin, and then flash this file to the phone with Odin (you can get Odin and instructions from that site too)
2. maybe your nv_data.bin file or /efs directory got corrupted, make a backup of the folder, then simply delete nv_data.bin, it will be recreated for you on Galaxy S.
For this, you’ll need root. If you have a root-enabled kernel, like the Voodoo lagfix kernel, you only have to install the Superuser app and Busybox on the phone, download the Android SDK to your PC, install platform-tools in the SDK manager, go to the platform-tools directory and start adb shell.
In the shell, type su, wait for the Superuser prompt to appear on the phone (if it does not appear, open the Superuser app and try executing su again), enable root access for the command. Now go to /efs, copy everything to for example /sdcard/efs, then rm nv_data.bin.
Reflashing the device with a kernel and checking “phone EFS clear” in Odin also works (make sure you made a backup of the EFS folder just in case).
3. you can try changing the CSC (to XEO for Europe): enter *#272*imei# on the phone tab. Note: this will reset your phone to factory settings, so make sure you did a clockworkmod backup before this. Incorrect CSC setting may cause MMS not working also.
4. check if you inserted the SIM card correctly
Thanks
MertBaBaaa
first check imei no
hello for all members,
i have solution for this problem "not network or not signal" Samsng Galaxy SC-02B Docomo
later write my solution phone work all World
__________
XcachorroX
galaksy s no signal
3. you can try changing the CSC (to XEO for Europe): enter *#272*imei# on the phone tab. Note: this will reset your phone to factory settings, so make sure you did a clockworkmod backup before this. Incorrect CSC setting may cause MMS not working also.
this solution works for me and thanks alot many many thanks
maybe i've got a solution for the no service probleme. i tried this code *2767*3855# and my phone works normal now
i hope it works for you guys
No Network after change of CSC - is there a recovery strategy?
SOLVED
======
Asked around and it goes like this: 2.1 + market = no signal, (2.2 or 2.3) + market = no problem
Solution is UPGRADE from 2.1. to 2.2 or better - I hope this will help anyone else with the same problem.
If you can't do it yourself, any mobile shop will for a small fee.
Symptoms
========
Changed CSC from KSA to XSG with code *#272*HHMM# for 2.1 (no Market in KSA mode)
Galaxy S GT-I9000 now shows blue circle with diagonal in notification area at top of screen.
Settings > Wireless and network > Mobile networks Network mode > Network operators > Search Networks or Select Automatically produces no response - finds no networks.
Dialpad dial a number => "Not registered on network"
Coincidental hardware failure seems very unlikely but not impossible I suppose.
What I would like to know is if there is a recovery strategy from here?
Even if it includes installing a complete new firmware? (and possibility to revert to original if required for warranty)
Device does not respond to "3-finger salute" (volume-home-power).
I am not confident that a warranty is worth all that much in this part of the world. It may be quicker and more effective to do it myself.
Further details of history and phone info below.
I will be very grateful if anyone can help me out
History
=======
Phone purchased in Saudi Arabia (KSA). Worked fine with pre-paid SIM (mobily) voice, data, sms, wifi.
Phone also worked fine with a pre-paid sim (cosmote whatsup) in Greece - voice, data, sms, wifi.
However, since phone was purchased in KSA, Android Market was not installed. Found a Market.apk and installed that. Installs but doesn't actually work.
Found code for changing CSC (*#272*HHMM# for 2.1, *#272*[IMEI No]# for 2.2) 2 colleagues had success and no problems with this with a Tab and 2 Ss, albeit with 2.2. The code looks worth a try on 2.1 so I gave it a go.
Had to remove the side-loaded Market before the code would run and changed the CSC from KSA to XSG.
Market pops up on the screen and works fine.
BUT no network. Network name shows in the Notifications though. The GR SIM shows "(No Service)"
Factory reset, returning CSC to KSA do not help.
The mobily SIM works fine in other phones but no known good SIM works in this phone.
Mobily tech support (in store visit, usually commpetent guy who knows me) is completely flummoxed and asks me if I have a warranty.
So now I have a very compact WiFi only tablet
Phone Info
==========
Model number: GT-I9000
Firmware version: 2.1-update1
Baseband version: I9000JXJG2
Kernel version: 2.6.29 [email protected] #2
Build number: ECLAIR.JPJG8
Personalisatiob(sic) Status
Network Lock
[OFF]
Network Subset Lock
[OFF]
SP Lock
[OFF]
CP Lock
[OFF]
Settings > Wireless and network > Mobile networks Network mode > GSM/WCDMA (auto mode)
Solution to your problem
Hi All,
This happened to me before and I was as frustrated as you and when I was about to give up, I tried one last restoration, but only this time I did it correctly. After that, I restored 5 different versions of Samsung Galaxy S stock ROM back to my Samsung Galaxy S. One of these versions were Chinese, and everything was in Chinese.
Samsung Galaxy S had no signal was because the modem file was missing while you were performing the restoration.
Now, all you have to do is go to this page and follow the instructions to restore the Stock ROM back to your Samsung Galaxy S.
same problems
Hi guys, I have same problem. But a litle diffirent.
When I use 2.3.6 firmware version it's work well no problem. But when I use 4.x.x Rom it says no network and no imei. If I use 4.x.x om pluged the charge my device ,I see gsm company and imei number. It's very interesting. I think , electricty not enough for my device. Maybe Its hardware problems. I 'dont any idea.
How can I solve this problem?
Thanks.
I changed the baseband of my Xoom from GSM/UMTS to USA by a mistake.
No Idea how to reset this to european settings.
The mistake happened using the app "Netzwerk" by Phillipp Mangelow.
Since then there is no chance to get an internet connection.
All settings i can directly access are ok.
The above named app has an error and offers only "USA" as selection of baseband.
Has anyone an idea how to reset this or knows an app which modifies this setting?
Xoom without radio is not even a half xoom
Kind regards,
Willy
Try tiamat new rom, there is a possibility to change it back to EURO mode
Hi,
i use a international version of motorola xoom mz601 in india and have updated to android 3.1 and use the latest baseband n_01.83.35p.
after this update the band changed to USA band 800Mhz? i cannot use any network 2G or 3G and the motorola doesn't show any network operators.
i really want to revert back the settings.now how can i downgrade my baseband and what commands i need to execute also i have tried moving to stock 3.0.1 but no change in baseband.
any apk file that would help me change the band?
thank you.
Please help
If you are rooted, and if you have a previous backup done thru recovery before, just go to recovery, advanced restore and restore system only. It should bring back your baseband.
Sent from my MZ601 using Tapatalk 2
What I did was go back to a stock 3.1 provider firmware. Being in India I used Original rom. I flashed boot, system, data and recovery. At that point the 3g radio still wont work, Let it do the OTA updates to bring it to 3.2.2 and it will start working, I think one of the OTA updates flashes the modem and or bootloader and resets it to the correct band.
I could then go back to a custom rom and it was all good, I make sure I stay away form the band settings in future.
I purchased a brand new LG G Flex 2 and It dawned on me that it was a Sprint variant LS996, rooted and unlocked. I do not live in the US and the phone is working fine with my local carrier, except that there is no tethering option. It currently has Android 5.1.1 installed and software version is ZV6. Since the phone is rooted, OTA updates download but fail during installation.
Now, what I want to achieve is to update the phone to the latest software version and also retain the carrier unlock. I would be thankful if someone can point me in the right direction. It would also be nice if I am able to make a full backup of my system in its current state so I can revert if things don't well.
Thanks
I am in the same situation with my LG g flex 2, there is no hotspot option.
Follow my back to stock guide with stock images on general section. That should help you to go unroot pretty easy and then ota update. Read through that forum there are several suggestions you may apply too.
Alex_XV6700 said:
Follow my back to stock guide with stock images on general section. That should help you to go unroot pretty easy and then ota update. Read through that forum there are several suggestions you may apply too.
Click to expand...
Click to collapse
Thanks for your reply. From what I understand, I have to flash stock ZV6, OTA update to ZV9, and then flash rooted ZV9. Will I lose the SIM unlock in the process? I have seen some people on another forum claim that they went through this process without losing the SIM unlock. On an another note, I managed to enable tethering by changing network mode to Lab in the LTE settings hidden menu. This also disabled the annoying Hands Free Activation screen. However, the Wi-Fi tethering is limited to 1 user. I tried the suggestion of changing SPR to GLOBAL in build.prop, but I couldn't save the file if I added anymore than three characters in place of SPR. I also tried adding dun to APN type in the LTE settings menu, but found out that APN type is not editable.
anseroid said:
Thanks for your reply. From what I understand, I have to flash stock ZV6, OTA update to ZV9, and then flash rooted ZV9. Will I lose the SIM unlock in the process? I have seen some people on another forum claim that they went through this process without losing the SIM unlock. On an another note, I managed to enable tethering by changing network mode to Lab in the LTE settings hidden menu. This also disabled the annoying Hands Free Activation screen. However, the Wi-Fi tethering is limited to 1 user. I tried the suggestion of changing SPR to GLOBAL in build.prop, but I couldn't save the file if I added anymore than three characters in place of SPR. I also tried adding dun to APN type in the LTE settings menu, but found out that APN type is not editable.
Click to expand...
Click to collapse
You wont lose sim unlock...
Just do the process...
I also deleted some of the folders in carrier and just left the apps and I really dont remember which other cause I sold my phone.
Hello and thanks for checking this post!
Ive bought a LG G3 D850 in USA, unlocked. When moved to Argentina I was not able to get 3g/4g signal from my local carrier, only EDGE, as the phone wasnt sold by them they rejected to assist so on my own Ive made the following steps:
Hidden menu fixes - didnt work
Edit build.prop - didnt work
Updated from stock 4.2.2 to Fulmics 5.2 - didnt work
Flashed new .qcn files worked as follows:
.qcn #1: I was able to improve quality signal for voice and data, also fixed 3g and H connections.
.qcn #2: Quality signal decrease, EDGE works, no 3g and no H but 4G works.
What I would like to know:
1- Is it possible to use the .qcn #1 and restore my factory IMEI so I can at least have H?
2- Is it possible to edit the .qcn#1 and include the code portion from .qcn#2 that enables 4g?
That would be the perfect fix for this issue!
ps: Ive the original box with the IMEI labels and also the internal label that confirm phone original IMEI, I know change IMEI is not legal and its not what Im trying to do, Im looking for a fix keeping my IMEI stock.
Thanks for any input!
Hi i have the same problem.
Im also from Argentina and also in FULMICS 5.2
Im still no try change the QCN, because can not understand the procedure very well
Can you help me?
where can i find? and You recommend the QCN N.1 , for me is enought H.
Thanks
I hope you can answer
Hi
How can I achieve your flash qcn #1 solution on my lg magna h500?
Im having the same issue
OK
I´ve got one s5 here in Cuba, it is from boost / sprint.
Ithas not been a problem for me to unlock it and make it work on GSM 2G, here.
but I have few issues which I would like to solve.
I cant find an option to import the contacts from the Sim card, so, my sim card contacts are just ignored by the phone, not eveb there is a choice for showing the sim contacts together with the phone contacts.
There are some USSD codes which I cant use at all
APN changing it is another issue, I know this is being addresses in the forum.
Phone is running 6.0.1 PE1 firmware, I can easily root using cf-autoroot.
is there a generic ROM, from international model like g900F, which I can just install to the sprint phone thus removing all the sprint stuff.
I know there is a cyanogen mod 13 out there, but I would like to stick to as close as possible to stock touchwiz roms.
Any suggestions / thoughts / ideas ?
there is an apn manager app called (oddly enough ) APNManager, its available in the play store and its icon is a hedgehog. It does the work for you regarding apns. As far as a stock feeling unbranded ROM, you can TWRP flash whatever ROM you like as the functionality wont be impeded as long as you dont flash the modem for a different model on it. I personally recommend MOAR 7.0 and use titanium backup to backup and delete anything "sprinty". For that matter , you could just use titanium backup to backup then uninstall that same "sprinty" stuff on your current ROM