you can flash the 15A (american) baseband on a 15I (European /International) phone,
in the forums, where mentioned, it just says don't since the 3G will no longer work on the phone,
my question is if this problem is due to different hardware used in the two different versions of the phone,
or is the warning just because in most likelihood the phone will no longer be compatible with local 3G networks,
thanks
sinaiy
Related
Sorry for this-I am just new to GT/Android.
In using phones as long as you have the correct frequency you can always use your phone anywhere in the world,using the sim card for that particular place. No need to hack or flash the modem.
The Galaxy tab is supposed to be also a phone. Why do I have to flash the modem? Is there no universal type of modem for android?
I assume that there is different firmware at least for the CDMA and GSM versions, and that on top of that there are incremental updates to the modem firmware.
If anyone else has any more/other info I'd also be interested to hear it.
E.g. Is the modem firmware provider dependent too?
The modem is a binary file to operate the radio, and with each rom upgrade, there is a modem tweak too.
The samsung galaxy s line of tabs and phones have a few radios in common, for example the vibrant, i9000, and tab use the same radio chipset.
US t-mobile tabs should:
get 2g+voice using a vibrant modem, and the stock radio for 3g data only, and you have to install the modem switch software by Rotohammer.
North American at&t tabs should:
get voice and 3g data using the JK3 modem from the i9000.
These guidelines assume you use a compatible sim, at&t sim in at&t tab, t-mo or simple mobile sim in t-mo tab.
I seem to have an issue with the samsung captivate here in china.
I have a pilotx custom ROM installed, firmware 2.3.4 baseband version I9000XXJVT and samaphore kernel for the captivate.
this works very well in Israel, getting perfect reception and voice quality everywhere. however when i arrived in china i found out that my phone doesn't manage to connect to china mobile network (chinese SIM card is china mobile).
searching for networks i can see chn-cugsm, which is a china unicom network. if i put my SIM card i can sometime connect to the network as a roaming user but my battery only lasts for a few hours, seems like the phone is constantly busy trying to find a network.
when i try to install another modem using CWM it looks like its going well but when i reboot the phone baseband version remains the same XXJVT, i tried both i897 and i9000 modems but can't seem to change my modem, is it possible that the modem is installed but the version is displayed incorrectly?
second thing is - is anyone using china unicom and can tell me which modem works best for them? their website states their network is GSM 900/1800. the israeli provider is said to be using GSM 1800
Try using ODIN or Heimdall to flash the modem? Can't help on wich modem.
I flashed the latest CM9 nightly two days ago, and everything seems to work great other than that I have no mobile signal. I am an Australian Optus user, and I tried it both with the modem that came with CM9 and with the one I believe is for my country, which is XXJQ3 by flashing that.
In both situations, I can scan for networks and see all three carriers just fine, but it shows no signal, just an "x" in the middle of the signal triangle, nor does it show which carrier it is connected to. I cannot make emergency calls because it says no mobile network is available.
Is this a modem baseband/firmware problem ? I am guessing not, because I would think that if it can physically see the networks, then the modem must be working right ? But if so, why can it not connect to anything ? The modem firmware I am using is for ICS and I believe it is the correcto one for my region, and I have enabled everything in the modem settings but still it will not connect to any network. Why ?
pawz said:
I flashed the latest CM9 nightly two days ago, and everything seems to work great other than that I have no mobile signal. I am an Australian Optus user, and I tried it both with the modem that came with CM9 and with the one I believe is for my country, which is XXJQ3 by flashing that.
In both situations, I can scan for networks and see all three carriers just fine, but it shows no signal, just an "x" in the middle of the signal triangle, nor does it show which carrier it is connected to. I cannot make emergency calls because it says no mobile network is available.
Is this a modem baseband/firmware problem ? I am guessing not, because I would think that if it can physically see the networks, then the modem must be working right ? But if so, why can it not connect to anything ? The modem firmware I am using is for ICS and I believe it is the correcto one for my region, and I have enabled everything in the modem settings but still it will not connect to any network. Why ?
Click to expand...
Click to collapse
did you have try replace/update the modem radios from this? http://wiki.cyanogenmod.com/wiki/Samsung_Galaxy_Tab_(GSM):_Support_Downloads
you can try a different modem, It doesn’t matter if you prefer another modem, you can flash another modem, you can try flash any modem file you want, it's will not brick your tab
If you had, but still not working, then go to dialer, put this code *#*#4636#*#*, pick tablet information, try turn of the radio then turn on again and try to fix permission on cwm too.
good luck.
qm4n76 said:
did you have try replace/update the modem radios from this?
(url redacted)
you can try a different modem, It doesn’t matter if you prefer another modem, you can flash another modem, you can try flash any modem file you want, it's will not brick your tab
If you had, but still not working, then go to dialer, put this code *#*#4636#*#*, pick tablet information, try turn of the radio then turn on again and try to fix permission on cwm too.
good luck.
Click to expand...
Click to collapse
Thanks. Tried all your suggestions. Yes, that is where I obtained my XXJQ3 modem, which I flashed via CWM. I tried your other tip of turning the radio off and on again and then fixing permissions in CWM but to no avail. Still no mobile signal.
Is it correct to assume that if the device can scan for networks and see networks, then the modem is working ? The information screen you directed me to says "emergency calls only", but I cannot actually make an emergency call because it says "mobile network not available", so even though it can "see" three networks, it cannot connect to any of them to either get a signal or make emergency calls.
What does this mean ? Surely it has the right frequencies set otherwise it wouldn't see the networks at all, right ? Is this a CM9 bug in the nightly I flashed or something ? Wondering where to look. I get the feeling the modem is working fine and that something else is wrong.
I use the jlv modem from the vibrant phone.
But jpz modem is also OK for optus.
Why not do Android backup for safe keep, then restock using gb stock safe from overcome guide, and flash jpz modem to try.
If it is the same, then it is hardware related.
Sent from my GT-P1000 using XDA
Oh my god. The reason it didn't work work is so stupid I had to headdesk when I realised. The SIM I was using was old and had been disabled. The reason I didn't think it mattered, is that in Gingerbread, it would still register and show reception bars and I could make emergency calls with the old SIM, or indeed even without a SIM in the device at all. But in ICS, none of that was the case, and it would not register and not let me make emergency calls without a valid SIM.
I guess I was just making a stupid assumption that SIM-less emergency calls that worked in GB would also work in ICS. Stupid me.
Everyone can make mistakes or forget something, but you should thank all the users who give you answers.
Sent from my GT-P1000 using XDA
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
Hello everyone,
after flashing a Custom ROM (Phoenix 3) i had my Baseband as "Unknown" , IMEI too and therefore SIMs not detected.
I solved this issue by flashing "Modem baseband radio firmware" found on Lenovo K3 Thread's homepage and all were ok at last.
The problem :
In the Google Drive link provided here http://forum.xda-developers.com/showpost.php?p=61890086&postcount=2
there are many firmwares. I didn't know which one to flash so i got the latest one "modem_VIBEUI_V3.1_1604_5.36.1_ST" which worked BUT ... internet speed is very slow. Is there a case that this is caused by unsupported firmware installed?
How can i install my Stock Firmware for Modem baseband radio but without reflashing stock ROM. Is stock firmware among the list on google drive directory provided before?
Thanks a lot.
Same issue here. Flashed Lemonade MM ROM with no SIM cards detected. Flashed the modem firmware to correct the problem and my SIM showed back up but now I am limited to H/H+ speeds in an area I have always gotten 3G speeds before.
EDIT:
I have just Google'd how fast H+ speeds are -- something I should have done prior to finding this post -- and am perfectly fine with a modem update increasing the speeds at which my phone operates.
can you please re-upload the modem flash image again?