Database Develop

[Q] no reception at all

as the topic says i have no reception at all call or anything ive tried reflash to stock jvp and stock optus and have also set APN settings to default and nothing any one able to tell me a code to enable disable the modem on my SGS i9000 or have any idea what could be going on?

Flash jvp modem via odin put it in PDA and you will be fine
You can find modem in ramad thread for stock firmware
Sent from my GT-I9000 using Tapatalk

Flashing just a modem does not seem to be doing anything else

Did you find any solution?
If yes can you tell how cuz I am having same problem
Sent from my GT-I9000 using Tapatalk

hey once the same happened to me when i installed sh 3.6.1, after i install my sim wouldnt register,going back to the previous version my sim worked...so i changed my kernel to fugu and flashed 3.6.1 again everything worked fine... try this might help u !!

new modem I recommend

flash modem using ODIN

Hi,
i have some signal problems with my I9000 (2.3.6),can i flash a modem using ODIN without a new ROM (i want to keep 2.3.6 and don't losing my apps and games),and i will not got any problems.
and please what is the good modem (if possible for north Africa)
thank you .

Yes u are able to flash only the modem, just select the modem file only and flash.
Not sure about the modem, but jjw2 has worked on my phone well with signal and battery wise.

thank you Wesku,
there will not be any problem with the ROM, apps and games after the flash.
and where i can find it ,and how can i know what my phone running know(modem).

The modem won't affect performance so apps and games should be fine.
Not sure where to find as I flash my modems from CWM recovery and I'm running CyanogenMod, that uses modems that are little bit different from stock ones.

m7amed said:
thank you Wesku,
there will not be any problem with the ROM, apps and games after the flash.
and where i can find it ,and how can i know what my phone running know(modem).
Click to expand...
Click to collapse
Just search here on the forum for the modem you want.. or google for it
changing the modem will not affect your apps in anyway..
for checking the current modem, go to settings >> about phone >> baseband version

How do I downgrade back to stock Froyo after upgrading to Overcome 4.1.0?

I have T-Mobile Galaxy Tab 7.
After using Overcome for a day, I think I prefer Froyo. Could anyone guide me as to how I can go back to Froyo 2.2? Also, in the process of upgrading to Overcome, I upgrade the tab to 2.3.6 gingerbread. Is it possible to just uninstall the Overcome and use gingerbread? Please guide me thanks.

yes, just follow overcome guide again to restock.
That is by using Odin to install the GB-Stock-Safe from overcome site.
With that you will get GB samsung stock, without anything overcome at all.
You will get the dialer, so in theory you can make phone call with the right modem.
Unless you really prefer Froyo stock from T-mobile that doesn't have dialer, you can get download the firmware and flash it. (if you can find your firmware version)

priyana said:
yes, just follow overcome guide again to restock.
That is by using Odin to install the GB-Stock-Safe from overcome site.
With that you will get GB samsung stock, without anything overcome at all.
You will get the dialer, so in theory you can make phone call with the right modem.
Unless you really prefer Froyo stock from T-mobile that doesn't have dialer, you can get download the firmware and flash it. (if you can find your firmware version)
Click to expand...
Click to collapse
So all I need to do is install GB-STock-Safe with odin and I'm back to gingerbread? If that's the case, I would like that, I like gingerbread. Also, after I installed overcome, I did get the dialer but when I installed my AT&T sim card, it wouldn't detect it at all. I then used Galaxy S unlock tool from the market to unlock. I was able to unlock it and then the Tab was able to recognize the AT&T sim but when I dialed a number, it would automatically hang up. How do I fix that? Is there something I need to install to get the phone working? thanks a lot!

have flashed a different modem before?
T-mobile has a different frequency. You may be able to flash AT&T modem or other modem via CWM recovery.
There is a modem thread in the dev section.

priyana said:
have flashed a different modem before?
T-mobile has a different frequency. You may be able to flash AT&T modem or other modem via CWM recovery.
There is a modem thread in the dev section.
Click to expand...
Click to collapse
Could you give me the exact directions please? I'm new to this. thanks

you have managed to flash overcome 4.1, you can't be that new.
First go to your setting, About, and note down your phone Baseband
that is actually your modem version.
Now, if you restock back to GB Safe stock, you will not be able to do what I said below, because this is based on CWM recovery, which is included in Overcome Kernel.
The good thing is, once the right modem gives you all the functions (call, sms, data) you can then restock to GB stock safe and the modem won't change.
Go to http://forum.xda-developers.com/showthread.php?t=1069727
and download a few of the modems. Maybe a JPZ, a KM2, an AT&T modem, and T-Mobile modem.
Put them in your sdcard like when you flash overcome rom.
reboot to recovery
choose to install from sd card
locate the modem zip file and install it.
reboot and try out your data, sms, and phone calls.
If no good, reboot again to recovery and try different modem.
It is a hit and miss for some people.
If you already restocked and has no CWM recovery, you can still use Odin to flash just the modem.

wow it's working! i downloaded JPZ modem and did installed from internal sd and now i can finally make phone calls!!1 thank you so much! btw, can I now go back to stock froyo or gingerbread and still keep the voice? also, if I were to just use odin to flash the modem on a stock foryo galaxy tab, i should be able to make phone calls right? again thank you so much!!!

yes, that is right. The modem should stick, if you downgrade to GB stock safe.
Having said that, if you downgrade to Froyo and the package contains a modem.bin, then it will get overwritten. Then you need Odin to flash the modem again.
What network are you in? As long as you are not in T-Mobile network, you should be fine. I myself own a T-Mobile galaxy tab, using JPZ modem in Australian Optus network. I can make calls and have 3G/HSDPA data connection.

I'm using it on AT&T... i don't have a data plan, but if I were to get a data plan, would it work with the JPZ model or do i need to use anothe rmodel? thank.s

Hard for me to say. I don't know much about AT&T
It seems like HSDPA in AT&T is 1900 MHz
I am pretty sure most networks are on 2100 MHz (Europe, Australia, Asia)
Can you get a data plan SIM and try it out, and try the AT&T modem in the modem thread as well?

priyana said:
Hard for me to say. I don't know much about AT&T
It seems like HSDPA in AT&T is 1900 MHz
I am pretty sure most networks are on 2100 MHz (Europe, Australia, Asia)
Can you get a data plan SIM and try it out, and try the AT&T modem in the modem thread as well?
Click to expand...
Click to collapse
I tried AT&T modem but I lose voice communication.

weird,
this external link
http://www.talkandroid.com/21900-sa...ers-bell-hacked-for-voice-calls/#.TzDI56fnitI
implies that modem_bell_i9000.zip lets you make voice call using euro rom, and has data as well.

Hey, I was trying to install ICS after downgrading back to gingerbread from overcome.
So, after get the CM9 and gapps from humberos website, I put them along with the overcome kernel in the root of internal sd and reboot in recovery however, after flashing the CM9 zip, I cannot see the overcome kernel anywhere. So i proceed without flashing that and after rebooting i get stuck at galaxy tab logo. can you help? thanks

You wasted quite a lot of effort.
You should go straight to ics from overcome.
try flash overcome kernel using odin (the tar version of the kernel)
Then boot to cwm and flash cm9 rom again followed by humberos cm9 kernel for P1000.
But if you have patience, wait a day or two. Humberos will have newer rom+kernel that fixed slow wifi and quite a bit.
Meanwhile you can flash stock safe again while waiting.
Sent from my GT-P1000 using XDA App

No reception after flash with cwm.

I upgraded from icssgs 3 to 4.2 abd ever since i get no reception at all. No data, no calls no nothing. Wifi works though.
I have tried since and flashing several different roms and the problem persists. Has anyone had this problem before or does anyone have a possible solution?
Sent from my GT-I9100 using XDA App

Have you tried factory reset, cache wipe, advanced and dalvik cache wipe, and then re-flashing rom? Are you using teamhacksung build 16?

risking to sound stupid, by " No data, no calls no nothing" you mean "no signal"?
if you've tried the solution suggested by am2012, have you tried installing a different modem?

try flashing a modem...u can get one from here
http://forum.xda-developers.com/showthread.php?t=1158783&highlight=bootloaders

I have tried wiping and reflashing. I have also tried flashing different roms with different modems.
I reflashed the last rom that worked but the problem persisted.
I have had thoughts of flashing a rom with odin instead of cwm but i dont know if it should make a difference?
Thanx for the replys btw, all help is very appreciated.
Sent from my GT-I9100 using XDA App

Try wiping and resetting everything. Then put phone into download mode and odin a stock ROM. Then if things work start working again with your signal, flash rc4.2 again. I have flashed loads of ics roms and never had a problem I couldn't fix by going back to stock ROM. Try 2.3.6 the 'leaked one' from Sammobile.
By the way, you have got a i9000 international version haven't you?
Sent from my GT-i9000 using XDA App

Hey, just realised you have i9100. Have you used the right ROM for your phone? Does icssgs release for i9100?
Sent from my GT-i9000 using XDA App

Is ur imei at its place ???

If you've got an sII then icssgs is never going to work - go back to sII rom.
If you've got an sI then as sbnaul pointed out it is most probably your IMEI. Some users found their IMEI changed when upgrading to 4.2
Hopefully you've taken a backup of your efs - if so just copy the backup imei file over.
If not, there is still hope - flash stock gb 2.3 back onto the phone - this should restore the imei. Then take a backup of the efs folder, flash 4.2 and copy your backed up imei into efs

Thanks for the help.
I have 2 phones, one internarional sgs and an international s2.
I mostly use the s2 but i want the sgs to work nonetheless
Im gonna try reflashing the stock, i dont have any efs backups or such:/
I have been looking for a good stock rom but didnt find a good one. Im gonna look for the leaked sammobile release though so thanks for that.
How do i take the needed efs backup? Is it through cwm?
Thanks!
Sent from my GT-I9100 using XDA App

Modem Issue
ScrotzaN said:
I upgraded from icssgs 3 to 4.2 abd ever since i get no reception at all. No data, no calls no nothing. Wifi works though.
I have tried since and flashing several different roms and the problem persists. Has anyone had this problem before or does anyone have a possible solution?
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
I'm quite sure that this is a modem issue...
If you know, which ROM were you using previous to ICS where the reception was fine, then you can flash that modem.
(For eg.: it was 2.3.6 XXJVU in my case. So, I would require a JVU modem)
Here is a concise list of all the modems: http://forum.xda-developers.com/showthread.php?t=1158783

aaprocks said:
I'm quite sure that this is a modem issue...
If you know, which ROM were you using previous to ICS where the reception was fine, then you can flash that modem.
(For eg.: it was 2.3.6 XXJVU in my case. So, I would require a JVU modem)
Here is a concise list of all the modems: http://forum.xda-developers.com/showthread.php?t=1158783
Click to expand...
Click to collapse
Yes, I have tried that but it doesnt work.
But now I flashed the stock rom and I got the reception back. So now Im gonna root and try to backup the efs folder.
Thanks alot everybody to answered the thread.

There we go. Now it works again. I didnt even have to restore the efs folder.
I just flashed the stock rom, rooted and then flashed icssgs 4.2 and now it works.
Thanks everyone

full wipe , flash new rom worked for me

I've heard if you flash a stock ROM with Odin, then the problem with the IMEI (efs folder) is often done. Is this right?

Saimen2 said:
I've heard if you flash a stock ROM with Odin, then the problem with the IMEI (efs folder) is often done. Is this right?
Click to expand...
Click to collapse
Yup... that does the job...

help me in changing modem in jb

i am now using jb rom.. i would like to know how to change the modem.. becoz i am having prob with 3g networks.. unable to connect back to 3g after selecting 2g.
please tell me where i get the modems (any thread here).
whether all modems (gb,ics) are comparitable with jb..
how to flash them. ?

Choose & download modem here
http://forum.xda-developers.com/showthread.php?t=1870460
Just flash the zip file in cwm (recovery). Same way flashing a custom rom
For me JVO, JVK works best, but u have 2 try different modems to see whats best for u. Its different for everyone. No need wiping anything you can flash endless times till u find the right modem. Theyre all compatible