Database Develop

[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..

i9305 no mobile signal..what else can i try ?

I Have had this i9305 now without mobile signal, with a vodaphone it did used to show signal but in all cases it always says 'no mobile networks' or 'not registered on network' i have tried with every sim i can think of... it was suggested to flash a stock rom which i did..this made no difference, i then tried installing CM11 and followed the guide to the letter.
I know this phone is not blacklisted as i checked with the imei, i have tried flashing different modems but to be honest im not sure what i am flashing to it..i have tried three different ones now starting with XX as i am in uk...i really dont know if i have missed something or doing something drastically wrong..i have read and read and usualy i would have had this resolved by now...can anyone please help me as i want to give this handset to my girlfriend for a present very soon so we can keep in touch..i am at my wits end with it:crying:
Thanks

Try an emergency restore through Samsung Kies - this should eliminate any software related problem. Sounds to be a hardware problem though so get Triangleaway going and send it for repair if that doesn't work.

Flash 4.1.2, then enable and disable the LTE-only mode hack in the hidden service menu (the *#2263# one, not *#*#4636#*#*). (If you have root, you can also access that menu in 4.3 or even the 4.4.2 port, but it's a bit more involved.)
Sent from my GT-I9305 using XDA Free mobile app

Magik_Breezy said:
Try an emergency restore through Samsung Kies - this should eliminate any software related problem. Sounds to be a hardware problem though so get Triangleaway going and send it for repair if that doesn't work.
Click to expand...
Click to collapse
it won't let me do that as it doesn't list the phone as needing an emergency recovery. I flashed a stock rom and the signal is showing but it keeps saying not registered on network.. if I do a search it finds providers but when I opt for the provider of the sim it just perpetually spins at registering on network.
.NetRolller 3D said:
Flash 4.1.2, then enable and disable the LTE-only mode hack in the hidden service menu (the *#2263# one, not *#*#4636#*#*). (If you have root, you can also access that menu in 4.3 or even the 4.4.2 port, but it's a bit more involved.)
Sent from my GT-I9305 using XDA Free mobile app
Click to expand...
Click to collapse
when you say 4.1.2 which rom.. A stock one or a custom.. could you point me please ?.. The stock rom I have flashed is 4.1.3 I didn't flash a radio after as being stock it would be there already ??

Have just followed a guide to root this unit, upon installing root checker it says this device does not have proper root, Odin reports that everything went ok and i get the red pirate android..when the phone boots a pop up comes up saying unfortunatley SU has stopped working... not sure whether KNOX is stopping this ?

no network.
Hellow to you all.
I have got a problem in my s3 LTE.
After installed several rooms my lte not register in WCDMA network.
The mobile phone was from a french network. Bouygues and was unlocked in portugal.
i have got many problems with this phone but i like it very mutch.
the problem that bothers me the most is that i only make and receive calls with full network.
The WCDMA was not working but i allready fix it. Now when i turn to wcdma only it says not register in networck.
the only backup i have from the EFS folder was made by copy- paste and i think the problem was allready there and now i think i had brocken my phone. can you help me???
Excuse my englisb.

967571918 said:
Hellow to you all.
I have got a problem in my s3 LTE.
After installed several rooms my lte not register in WCDMA network.
The mobile phone was from a french network. Bouygues and was unlocked in portugal.
i have got many problems with this phone but i like it very mutch.
the problem that bothers me the most is that i only make and receive calls with full network.
The WCDMA was not working but i allready fix it. Now when i turn to wcdma only it says not register in networck.
the only backup i have from the EFS folder was made by copy- paste and i think the problem was allready there and now i think i had brocken my phone. can you help me???
Excuse my englisb.
Click to expand...
Click to collapse
please start your own thread as it is not relevant to mine.

Someone's suggested this phone is barred.. I have run a check which says it's not blocked but it's been suggested that this is unreliable...I have bars showing but just never registered on network.

Does your IMEI reported in *#06# match the one printed under the battery?
Sent from my GT-I9305 using XDA Free mobile app

hey loady,
did you manage to solve theproblem? i have the same problem since roughly 3 weeks. but honestly, i didnt put much effort in fixing it.
i found a big thread a while ago where the problem is solved... i'll look for it

[Q] 4g problem i9305

Can somebody help me with this 4g problem?
This is what i did:
1.flashed custom ROM (worked like a charm,i did nandroid backup)
2.flashed other custom ROM (didnt like it so I restored the first one from nandroid)
3.everything went well except no imei and no baseband
4.reverted back to stock rom with odin
5.and here is the problem,no 4g signal at all. 3g/2g works fine.
If I post my build.prop can somebody tell me whats wrong?
I have tried to put my sim card in other phone and it works but not in my phone.

Did you enable 4G in Settings?
Sent from my GT-I9305 using XDA Free mobile app

Yes, I did...network mode is set to LTE
Is there a test that I can use to test is it a software or hardware issue?

Maybe an issue of Stock rom you flashed using odin.. Which one exactly have yoi flashed? What modem you have now? And finally, is your S3 i9305 or some i9305T variant?

Check this out:
Typ *#*#4636#*#* and goto Netinformation, then you will find a special-setup for the 2G 3G & 4G.
Sorry about my english. Cause i am german.
Sent from my GT-I9305 using xda premium

Thanks for your replies,I flashed stock german 4.4.4 from sammobile.It worked very good about 2 months.
I think that modem is xxufoa1 and version of phone is i9305 lte international.
If somebody could help me with this issue,I would appreciate that.But no hurries,I got new playmate S6 edge...

try doing a complete wipe of data and cache, then flash stock rom again to see if problem persists

I have tried many times but no help...

Hey, try flashing the parambin.zip file (look for it on google related to s3 lte, you'll find it easily). Another thing to try is just wait with the phone turned on with a valid SIM. I found out that sometimes it delayed a lot to get signal, specially when changing SIM carriers on another country. After a while waiting it finally succeeded (probably unrelated but I also saw on the catlog entries about upgrading the sahara file of the qualcomm chip -the modem-).

i9305 Galaxy S3 LTE Signal Problem / fluctuates

Hi,
can You help me pls with ny LTE i9305 S3? I have problem with signal (antena OK, any sim any network), is just good outside but whan I go somwhere in house, is very bad or stop working network. I am not sure if can be some chip on motherboard problem, or if I solve this problem by some flash.
Thanks

Does it happen when you go inside in any place or just in your house? If it's just in your house then clearly it is just a problem of coverage on your area. I9305 international version supports bands 800, 1800 & 2600 for LTE where both 1800 and 2600 have bad coverage inside buildings. Check as another test if selecting 2g (pure GSM 900) you still have bad coverage. Can you try with a SIM of another carrier? This could also be the definitive test.
If it is a common problem (anywhere, any carrier...), then maybe you can solve it by flashing with Odin a different modem baseband (also called radio).
You have some basebands for download here:
http://sourceforge.net/projects/djb-tgp/files/CWM_Flashables/Modems/4.3 Modems/
I'm using the XXUENA2 with very good results, been used before others also with no major problems (XXUEMK1 and XXUFNI3 for example).
This is my "About device" screenshot where you can see the Baseband I'm using. Works fine in Europe as well as in Brasil:
https://mega.nz/#!Mh1RkbAY!k7l1vTQlxlas5S6OopO9054X-5P7yBpkJrXL_bv5-Fw
-jc

juliancarney said:
Does it happen when you go inside in any place or just in your house? If it's just in your house then clearly it is just a problem of coverage on your area. I9305 international version supports bands 800, 1800 & 2600 for LTE where both 1800 and 2600 have bad coverage inside buildings. Check as another test if selecting 2g (pure GSM 900) you still have bad coverage. Can you try with a SIM of another carrier? This could also be the definitive test.
If it is a common problem (anywhere, any carrier...), then maybe you can solve it by flashing with Odin a different modem baseband (also called radio).
You have some basebands for download here:
http://sourceforge.net/projects/djb-tgp/files/CWM_Flashables/Modems/4.3 Modems/
I'm using the XXUENA2 with very good results, been used before others also with no major problems (XXUEMK1 and XXUFNI3 for example).
This is my "About device" screenshot where you can see the Baseband I'm using. Works fine in Europe as well as in Brasil:
https://mega.nz/#!Mh1RkbAY!k7l1vTQlxlas5S6OopO9054X-5P7yBpkJrXL_bv5-Fw
-jc
Click to expand...
Click to collapse
Hi, thanks for Your reply
my problem is in house, but anyway problem with signal is without any sim always.
So I have now 4.4.4 and pls can You show me where I can download good one modem for this Android for my LTE? I´ll try it
thanks so much
EDIT: I have one. Is South Africa 4.3, there is XXUENA2 Modem, so I´ll try it and let You know.
EDIT2: So I have problem, I can´t downgrade 4.4.4 to 4.3 because will EFS faulty, so You have some idea how I can choose repair my modem for signal repair?

Hey Paul...
1) About signal: how do you expect to get signal without SIM? Or maybe are you meaning signal for just the 112 emergency call?
2) Modem/baseband: I already provided the link in my original post, check it.
3) No need to downgrade. You will only flash the modem/baseband without touching any partition, neither the ROM nor the EFS. You can do that via Odin (check any Odin How-To document -search Google-) or via the recovery if you have TFRT or QWM (at recovery menu select flash zip file and choose the one for the modem -you need to copy the zip file previously to your sd card or internal memory).
Paul Koty said:
Hi, thanks for Your reply
my problem is in house, but anyway problem with signal is without any sim always.
So I have now 4.4.4 and pls can You show me where I can download good one modem for this Android for my LTE? I´ll try it
thanks so much
EDIT: I have one. Is South Africa 4.3, there is XXUENA2 Modem, so I´ll try it and let You know.
EDIT2: So I have problem, I can´t downgrade 4.4.4 to 4.3 because will EFS faulty, so You have some idea how I can choose repair my modem for signal repair?
Click to expand...
Click to collapse

Signal problem
Hello.Sir I have a s3 i9305 when i am on LTE auto network mode then i was unable to make any phone call it always show wrong mmi code or connection problem and then it lost signals after that i rebot it then it pick the network can you tell me how to fix

Problem phone only working in gsm only??

Hello developers.
I am amz. In dire need of your help.
Ok so i have a new mini
I turned it on n it would jus turn off if I used apps. I got a new battery. That stopped.
I then try use Internet it works only on G and E but if I go to 3g or Lte. .H will never come on. Can't call it says not registered on network only on the higher bands not gsm.. It's a 4G sim it works perfectly in my old s5 mini and signal is excellent here. I got new Internet settings too. G n E works why the he'll doesny the other bands register on network? Imei shows its not blocked either. I'm in the UK on EE. I cannot understand. I have all the OTA updates. Can u tell me if I can fix it by doing something thro service menus or anything also all sims do the same in this phone. I don't have a pc to change the rom. Could I do it through a external SD card.
Please I beg of you help.

Run the system updates, I had network issues until it was fully updated.
They are only patches, no new rom.
Reboot once each batch has completed until there are no more.
If that does not work, potentially you have a row version which uses a different band than us in the uk. Send it back.

I have the June 2015 update. I ran all updates. Still not working? I wanna install the cm12 rom m see if that'll fix it but kingroot not working. How do I see what band my phone is tryna connect in wcdma mode n what is required by the network? 4g don't work either?

I just Checked. My networked EE uses wcdma on 2100mhz. My phone is trying to connect. But it just says emerge calls only. Wth. What's wrong with it??

Can you post a screen of the About phone?
Should look identical to mine

Also, have you tried googling ee 4g settings s5 mini?
My network required me to get a 4g sim upgrade, before that it needed settings for hspda 3g which worked

I have a similar problem. Phone worked fine for couple of months, but since tuesday, it only works when I force it to GSM only.
G800FXXU1AOG2, nordic
(the thumbnail above equals to mine)

Maybe the network providers have changed 3g/4g details.
Check the website for correct details and update them in phone, if that doesn't work try a friends sim, if that doesn't work return phone

I had the problem aswell. I searched for the newest firmware in the internet (in my case I used the russian one). Then I extracted the modem file and made a tar file of it to flash it through odin. After I've done it everything worked fine.
If you want me to, I can do this tomorrow or saturday for u.

I flashed the original firmware (July 10, Nee), that did not help. What is the date of your firmware that works now?

I thinky june 2015.. I had the problem in February last year

It's me amz
Ok so basically I found out I need to flash my modem file or change the rom. But I have no PC to flash
.so I need a app which can root my phone or something without a computer. Kingroot didn't work. Anyone got any ideas on how I can do this? I've Google relentlessly. I need a developers help lol
I'll even pay them

Flacid Monkey said:
Maybe the network providers have changed 3g/4g details.
Check the website for correct details and update them in phone, if that doesn't work try a friends sim, if that doesn't work return phone
Click to expand...
Click to collapse
I returned my phone and they changed the "circuit board". So mine was a hardware problem.

I've rooted my phone and going to change my rom however the tar.md5 file I can't use as I can.tell use odin. I need the .img file to have the twrp bootloader. anyone know where I can download this?