Database Develop

Help! SGS i9000m poor GSM 900 signal

Hello, i live in Balkans(Europe), my SGS can connect only in cities and not in rural areas( it has no signal outside cities)
When i type *#0011# it is saying that it was connected to GSM 1800 and my country uses GSM 900, there are probably some antennas in main cities that work on GSM 1800. I tried to set it in GSM900 mode but then i cant get any signal.
I am having very difficulties when traveling.
Is it maybe a problem with internal antenna or is it software related.
The problem started when I flashed to gingerbread 2.3.3 (darky - ficeto or something)
now i have this:
PDA: I9000XWJVH
PHONE: I9000XXJVO
CSC: I9000XEEJVH

Try flashing just a modem for your area (or a different modem) in CWM or Odin. That should help. No need to change anything else.
G

gfacer said:
Try flashing just a modem for your area (or a different modem) in CWM or Odin. That should help. No need to change anything else.
G
Click to expand...
Click to collapse
+1.....have a look around for the best modem for your country, or ask in modem thread....make sure you get the right thread as modems for samsung and cm7 are different

[Q] A question of modems & hardware

I have a question I'm hoping an expert can answer. I pretty new to the Android world so I'm trying to wrap my head around a few things..
So I bought a (prepaid/locked) S5830T from a store over here, and proceeded to unlock and upgrade to the latest
stock Gingerbread firmware (2.3.6). So now when I boot up, instead of S5830T, I get S5830. All good.
Now the phone runs fine, but I have an issue with 3G data in particular.
The "T" suffix appears to relate to the 'Telstra network' (which the phone was originally locked to).
According to this link - http://whirlpool.net.au/wiki/mobile_phone_frequencies
Telstra operates on 900Hz / 1800hz for 2G and 850hz / 2100hz for 3G.
The carrier I am on (Optus) operates on 900Hz / 1800hz for 2G and 900hz / 2100hz for 3G.
So I've flash the modem file from the Optus firmware package (Modem_S5830_XWKT3) hoping that that would enable
the 3G band that is currently not working.
(What happens ins 2G/"H" works fine, but when the phone switches to "3G" I lose all data connections)
But Alas, I still have the same problem..
So I'm wondering is there hardware in the phone that is preventing connection to the network, or do I need to find a more
appropriate Modem file that operates on the frequencies above?
Many Thanks!
BrikHaus

BrikHaus said:
I have a question I'm hoping an expert can answer. I pretty new to the Android world so I'm trying to wrap my head around a few things..
So I bought a (prepaid/locked) S5830T from a store over here, and proceeded to unlock and upgrade to the latest
stock Gingerbread firmware (2.3.6). So now when I boot up, instead of S5830T, I get S5830. All good.
Now the phone runs fine, but I have an issue with 3G data in particular.
The "T" suffix appears to relate to the 'Telstra network' (which the phone was originally locked to).
According to this link - http://whirlpool.net.au/wiki/mobile_phone_frequencies
Telstra operates on 900Hz / 1800hz for 2G and 850hz / 2100hz for 3G.
The carrier I am on (Optus) operates on 900Hz / 1800hz for 2G and 900hz / 2100hz for 3G.
So I've flash the modem file from the Optus firmware package (Modem_S5830_XWKT3) hoping that that would enable
the 3G band that is currently not working.
(What happens ins 2G/"H" works fine, but when the phone switches to "3G" I lose all data connections)
But Alas, I still have the same problem..
So I'm wondering is there hardware in the phone that is preventing connection to the network, or do I need to find a more
appropriate Modem file that operates on the frequencies above?
Many Thanks!
BrikHaus
Click to expand...
Click to collapse
Can you find the original Telstra firmware, extract the modem from that and flash it?
Can you get hold of a Telstra SIM and see if you still have the same issues?
The T doesn't necessarily signify Telstra but just a slightly different version of the S5830
It's the same with SGS2 there is a GT-i9100 and GT-i9100T (I have the T version purchased in Thailand so nothing to do with Telstra)
Because I have used this phone in Australia also, I've noticed that T modems perform better on my SGS2 than non-T versions.
I've found Optus coverage (in Melbourne) to be pathetic so I always have to ensure I'm using a T modem when I'm there.

ApriliaM3 said:
Can you find the original Telstra firmware, extract the modem from that and flash it?
Can you get hold of a Telstra SIM and see if you still have the same issues?
The T doesn't necessarily signify Telstra but just a slightly different version of the S5830
It's the same with SGS2 there is a GT-i9100 and GT-i9100T (I have the T version purchased in Thailand so nothing to do with Telstra)
Because I have used this phone in Australia also, I've noticed that T modems perform better on my SGS2 than non-T versions.
I've found Optus coverage (in Melbourne) to be pathetic so I always have to ensure I'm using a T modem when I'm there.
Click to expand...
Click to collapse
Hey, Thanks for the reply ApriliaM3.
Yeah I know the T doesn't necessarily mean Telstra, but was pretty sure it meant there was a different modem to stock (as with your SGS2).
Which is why I reverted back to stock. I thought that may have been more accommodating of all frequencies..
That's very interesting what you say regarding your T modem.
I believe I can extract the modem from my base backup, so will give that a try.
As for the Telstra sim, that might be a little harder, but I'll try the modem first and then try to get a sim.
Thanks for the info!

BrikHaus said:
Hey, Thanks for the reply ApriliaM3.
Yeah I know the T doesn't necessarily mean Telstra, but was pretty sure it meant there was a different modem to stock (as with your SGS2).
Which is why I reverted back to stock. I thought that may have been more accommodating of all frequencies..
That's very interesting what you say regarding your T modem.
I believe I can extract the modem from my base backup, so will give that a try.
As for the Telstra sim, that might be a little harder, but I'll try the modem first and then try to get a sim.
Thanks for the info!
Click to expand...
Click to collapse
I get the impression that my requirement for a T modem when I'm in Melbourne has more to do with Optus and their pathetic coverage than it has to do with the modem. When I'm in Thailand, it doesn't seem to matter what modem I use... they all get good signals and I have no problem with data either. I'm also a member on Whirlpool but I rarely go there any more... still it's quite a handy and informative site for many things

[Q] Changing 3G frequency band

I have bought a GT-I8190 (Unbranded/Unlocked) in Spain, which operates in 3G frequency band 900/1900/2100. The problem is that I live in Argentina, and here the 3G frequency is 850Hz. I would like to know if there is any hardware limitiation for the 3G frequency band or is just a firmware limitation. I've read that flashing a latinamerican modem (I8190L version) may solve the problem. Has anyone try this? What can I do?
Please let me know, cause i'm tired of dealing with EDGE.
Sorry for my english, i speak spanish.
Thank you!

I dont know about hardware differences, if there is any.
You could try to extract modem.bin from i8190L firmware and put it a .tar and flash with odin, but i'm not sure thats enough.
There's also a service menu if you type * # * # 1 9 7 3 2 8 6 4 0 # * # *
This is for SGS, but I think menus are quite similar.
HOW TO: Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S

Hi tys0n, thank you for your reply! I have a few questions.
tys0n said:
There's also a service menu if you type * # * # 1 9 7 3 2 8 6 4 0 # * # *
This is for SGS, but I think menus are quite similar.
HOW TO: Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S
Click to expand...
Click to collapse
I've seen this tutorial before, i've already try it, with no success. In the WCDMA Band submenu, the 850 option is missing,
tys0n said:
I dont know about hardware differences, if there is any.
You could try to extract modem.bin from i8190L firmware and put it a .tar and flash with odin, but i'm not sure thats enough.
Click to expand...
Click to collapse
Is there any risk of bricking the phone by doing this? I want to be sure of what I'm doing. If something does wrong, is there any way to go back to stock modem?
Thank you!

tomasboccardo said:
Hi tys0n, thank you for your reply! I have a few questions.
I've seen this tutorial before, i've already try it, with no success. In the WCDMA Band submenu, the 850 option is missing,
Click to expand...
Click to collapse
I didn't find it either but I was thinking it might be there if you flash a modem for that frequency.
Is there any risk of bricking the phone by doing this? I want to be sure of what I'm doing. If something does wrong, is there any way to go back to stock modem?
Thank you!
Click to expand...
Click to collapse
I don't think there is a chance of bricking it by changing modem. I've done it on my P7500 tab and my galaxy wonder without crying.
Question is if Odin will let it pass, and if so, maybe you'll also need to flash cache.img to get the "sec_csc.zip" for csc code and apn settings to be correct set in system. Not sure..
Edit: Seems like odin fails on modem.
http://forum.xda-developers.com/showthread.php?t=2185896

same here
tomasboccardo said:
I have bought a GT-I8190 (Unbranded/Unlocked) in Spain, which operates in 3G frequency band 900/1900/2100. The problem is that I live in Argentina, and here the 3G frequency is 850Hz. I would like to know if there is any hardware limitiation for the 3G frequency band or is just a firmware limitation. I've read that flashing a latinamerican modem (I8190L version) may solve the problem. Has anyone try this? What can I do?
Please let me know, cause i'm tired of dealing with EDGE.
Sorry for my english, i speak spanish.
Thank you!
Click to expand...
Click to collapse
Did you have luck change it to 850Hz?, if yes can you let me know how you did it.
Thank you!

waldo24 said:
Did you have luck change it to 850Hz?, if yes can you let me know how you did it.
Thank you!
Click to expand...
Click to collapse
I couldn't do it yet. If someone could, please tell us how!
Thank you!!

I8190 Problem
Hey people,
Got the same problem here, did not see the difference between the I8190 and the I8190L and now I´m dealing with the problem of being connected only in EDGE, dou you guys already solved the problem???
If´s that so, please let us know.

Same problem here
I have excactly the same problem. Got a GT-I8190N, and here they use 850mhz :crying:
have searched every corner of the web, but havent found a solution. If anyone manages to make these things use 850mhz band PLEASE tell us how you did it.

Tried but failed
Fon anyone interested, i flashed GT-I8190N my phone using a GT-I8190L firmware for my country / operator, and i was still unable to use 3G internet. only Edge.
The phone worked fine in all other aspects (except the NFC feature was gone of course), but still no 3G. i guess the bands are not only determined by software, but also by hardware.
By now i guess its safe (for me) to say, i will have to learn to live with Edge, or get another phone. :crying:

ErnestoRD said:
Fon anyone interested, i flashed GT-I8190N my phone using a GT-I8190L firmware for my country / operator, and i was still unable to use 3G internet. only Edge.
The phone worked fine in all other aspects (except the NFC feature was gone of course), but still no 3G. i guess the bands are not only determined by software, but also by hardware.
By now i guess its safe (for me) to say, i will have to learn to live with Edge, or get another phone. :crying:
Click to expand...
Click to collapse
Did you manage to change the modem.bin (baseband)? All I've tried and seen about it results in softbrick.

it dint brick it (THANK GOD)
tys0n said:
Did you manage to change the modem.bin (baseband)? All I've tried and seen about it results in softbrick.
Click to expand...
Click to collapse
Yes, actually that was the first thing i tried.
I downloaded the Whole firmware for the GT-I8190L for my local operator (MX Telcel), then i extracted the modem .bin file from it, and in odin i flashed it to the phone.
Phone worked fine, but still only edge.
So i decided to flash the whole firmware just in case, did so with odin, when my phone restarted i had the cheesy, bloated, horrible load animation my POS operator forces on all its phone, but still i was only able to use edge. no 3g.
Went to the phone service menu (if thats what its called?) dialing *#0011# then using the BACK menu option ->network -> etc. and still the 850mhz band option was missing. only got 900mhz (same as before).
At this point i was now stucked with the extra-extra-extra crappy logos and tons of crapware my provider installs on the phones, still without 3g, and all the NFC setting options dissapeared on the settings menu, but otherwise the phone was not bricked at all, it worked fine
So i downloaded this unbranded firmware:
Edit: (xda wont let me put the link, but its an unbranded firmware called I8190NXXAMD3_I8190NOXAAMD3_DBT)
wich is for the GT-I8190N version (not L), flashed it with odin, and now my phone is back to the way it was, i have my NFC settings back, got rid of ALL operator logos and bloatwares (now i only see the nice samsung animation on boot), and everything is working fine.
Except for 3G of course, im still stuck on EDGE.

Thanks alot for your answer. Now we know for sure it's based on hardware.

tys0n said:
Thanks alot for your answer. Now we know for sure it's based on hardware.
Click to expand...
Click to collapse
Sorry for bringing up this old thread..
Does anyone know if there is a way of replacing the phone's internal antenna/modem to adequate it to the 850mhz network? It'd be cheaper than buying a new phone..

S3 lte i9305 no 3g 4g only 2g wokring help

Got strange problem in my s3 lte.i cant any 3g or 4g service.only 2g is working..
tried hard reset etc but no fix..any idea how to fix it..?
please help

Lack of information posted .
jje

its just shwoing E and not 3g or H or 4g etc ..
i can make phone calls txt etc perfectly just not getting 3g 4g service.
its on 4.1.2 rooted via cf root..
its showing imei number basebacd etc..
dont know what more i have to say about fault..?

silverbox750 said:
its just shwoing E and not 3g or H or 4g etc ..
i can make phone calls txt etc perfectly just not getting 3g 4g service.
its on 4.1.2 rooted via cf root..
its showing imei number basebacd etc..
dont know what more i have to say about fault..?
Click to expand...
Click to collapse
Did you try Settings -> More Settings -> Mobile networks -> Network mode, set it 4G only or auto connect.
Another workaround maybe there's problem with your apn's? For example I had it set to MMS then ahd EDGE available only.
Second warkaround is secret menu, type it in dialer *#0011#.

how to set up MMS then ahd EDGE available only?
and i typed ?*#0011# and its showing
gsm900 available
mcc-mnc ; 234-10
tra ;120 bcch 120 cid 276c
rx pwr 85 dtx
txl 0 rx q 7 txl 0
speech ver amr efr fr
voc adaptive rate
ts 0
therm 130 lna 0

silverbox750 said:
its just shwoing E and not 3g or H or 4g etc ..
i can make phone calls txt etc perfectly just not getting 3g 4g service.
its on 4.1.2 rooted via cf root..
its showing imei number basebacd etc..
dont know what more i have to say about fault..?
Click to expand...
Click to collapse
Missing what firmware modem and CSC

Firmware virsion 4.1.2
build number @ jz054k.i9305xxbll5
csc @ i9305evrbll1

henrylife said:
Did you try Settings -> More Settings -> Mobile networks -> Network mode, set it 4G only or auto connect.
Another workaround maybe there's problem with your apn's? For example I had it set to MMS then ahd EDGE available only.
Second warkaround is secret menu, type it in dialer *#0011#.[/QUOTE
My GT-i9305 LTE doesn't detect GSM network automatically I have only 2g service in my country, my phone does not connect to GSM automatically, i have to set it on GSM only every time i restart my phone it does not stick on GSM only, whenever i restart my phone it will switch to LTE/GSM/WCDMA/ auto mode but doesnt connect to GSM i have tried many ways wouldn't fix it.
It will be great if any one can help me i have tried to install another modem but couldn,t find any, I rooted it tried to install some customs modems but no success i had to flash it with old firmware
phone info
Galaxy s3 i9305 LTE
firmware 4.1.2
baseband i9305xxalk2
build number i9305xxbll5
need you help
Click to expand...
Click to collapse

I have exactly same problem with silver.. Have you fixed it? I have tried to fix problem some, but nothing looks like gonna fix it...
I have tried everything that was written on the forum..
When I check *#0011# it shows that only GSM900 is available...
Anybody?

Have you tried changing it to WCDMA. I was having that problem with the 3g service not going above a few kbs, I changed it from gsm to WCDMA nd its back to full speed 3mbs.

M.IMRAN said:
Have you tried changing it to WCDMA. I was having that problem with the 3g service not going above a few kbs, I changed it from gsm to WCDMA nd its back to full speed 3mbs.
Click to expand...
Click to collapse
Yep, I did. Both on the phone menu and service menu. Doesn't take any 3g or 4g signal if I choose em only.

Wipe phone flash correct stock rom . Check modem check IMEI

JJEgan said:
Wipe phone flash correct stock rom . Check modem check IMEI
Click to expand...
Click to collapse
Done, still same.. I have both tried with Cyanogen, Liquidsmooth, Stock rom, Ripper rom...

Stock rom with correct modem and APN not working then take it to a service centre .
jje

Rethua said:
Done, still same.. I have both tried with Cyanogen, Liquidsmooth, Stock rom, Ripper rom...
Click to expand...
Click to collapse
Where did you buy it?. Did you see if the modem frequency of the carrier it's available in your phone?, I got the same problem and it's possible that my phone doesn't have the hardware ready for the carrier in my country. I still looking for an answer.

fabav said:
Where did you buy it?. Did you see if the modem frequency of the carrier it's available in your phone?, I got the same problem and it's possible that my phone doesn't have the hardware ready for the carrier in my country. I still looking for an answer.
Click to expand...
Click to collapse
This is I9305 specifications are not new .
Check your network before purchase as hardware is not flash able .
http://en.wikipedia.org/wiki/Samsung_Galaxy_S_III#Model_variants

Same problem
This NVM problem new HW and old nvm I got imei repair or unlock.
That's how I went, 20 managed to fix it, but this is not the last one because it is very new.
2-3 week old phone.
Looking for new NVM and efs backup.

Hi
I have a same problem only 2G network ...
i9305 in 4.3
behind the bug i wan't to unlock phone with Z3X box and i downgrade to 4.1.1 and unlock
but after that il lost 3G and 4G network
do you find a solution
thanks a lot
AP I9305XXUEML8
CP I9305XXALI9
CSC I9305OLBEML6
in french network

I reperair box nspro working 100!
Wysłane z mojego GT-I9305 przy użyciu Tapatalka

strpio said:
I reperair box nspro working 100!
Wysłane z mojego GT-I9305 przy użyciu Tapatalka
Click to expand...
Click to collapse
OK thanks i have just Z3X box ....

[Q] Need 3G/4G Assistance on I9305T

Hello Friends,
I am from India and I use Airtel Carrier which has following frequency Bands
GSM-900/1800 (EDGE) -- Working fine
2100 MHz UMTS, HSPA+ -- Not working
2300 MHz TD-LTE -- Not working
I am using rooted Galaxy GT-I9305T and running Latest Cyanogenmod official ROM 4.4.4.
I only able to servive on 2G band (EDGE), I am not able to search any 3G or 4G frequencies here.
I search many forums, threads to resolve this issue and I found couple tricks using *# on keypad but nothing works.
I have no Idea how to make work my phone on 3g or 4g band. Does anyone able to solve this issue here. Please let me know.
Thank You,
Regards,
Sajjad Hussaini

Please anyone who can help me...
This is issue can be fixed at ROM or Kernal level or hardware level ???
Also, I guess my phone is locked at 1800 Mhz as Australian network Telestra, I don't know. As nothing mentioned. when I start the phone it shows only I9305

sajjadhussaini said:
Please anyone who can help me...
This is issue can be fixed at ROM or Kernal level or hardware level ???
Also, I guess my phone is locked at 1800 Mhz as Australian network Telestra, I don't know. As nothing mentioned. when I start the phone it shows only I9305
Click to expand...
Click to collapse
as far as i know the bands are hardwared. You cant change them with program. No idea why 3g wont work. Try installing stock rom and then test it. Dont think kernel has anything to do with it, kernel is conencted to cpu. As i said ,try stock rom with odin, that usualy works. Then install cm again.

4G issue
klemen241 said:
as far as i know the bands are hardwared. You cant change them with program. No idea why 3g wont work. Try installing stock rom and then test it. Dont think kernel has anything to do with it, kernel is conencted to cpu. As i said ,try stock rom with odin, that usualy works. Then install cm again.
Click to expand...
Click to collapse
You might need to go to samsung repair centre and check it out. I had a prepaid sim card and the carrier with who i was with back then they only had 3G. Until I change carrier who had 4G service I was still getting 3G. After calling support here and their, got my phone checked and it was a hardware problem, lucky it was still under the 2year warranty. I contacted samsung and handed over my phone the repair centre and finally my 4G had worked.

Urgent Need Assistance,
I unfortunately updated the modem from below xda link
http://forum.xda-developers.com/galaxy-s3/help/downgrading-4-3-to-4-2-1-network-issue-t2531221
I installed the Patched MG4 Modem into my I9305 which one of the person had shown I9305 thread, thing that It will fix my problem.
I happen to loose my IMEI number, I have a backup in Phiz recovery, it is also not working when trying to restore.
and also I have backup using the EFS Professional v2.0. Now the problem is.. At current situation I am not able to connect to my PC using my phone
as it is showing driver no found for " Qualcomm CDMA Technologies MSM" in my Windows 8 device manager. I have installed all the drivers using of Samsung including Kies and Kies3.
Please can anyone help me to fix this issue. I NEED MY IMEI no back. I have backup in my laptop and also made an EFC backup in mobile using Phiz recovery.
Only if am able to install that driver I can get into my ADB Server. Please help me