Hi,
I just came back up from the states for vacation and I was using my galaxy s roaming. It was working perfectly fine down there but when I came back up to Canada, my phone couldn't connect to Bell. It sees rogers and I connect to it for "SOS calling only" but it can't find the Bell networks. Any help?
Thanks
What modem are you running? Also did something happen to your APN settings?
Swyped from a galaxy far far away.
I'm using JL2 and am on MIUI. My APN settings are still there. The exact same as before.
You must be on a different modem than jl2 because it has roaming issues in the states, that's why they released KC1.
Swyped from a galaxy far far away.
Well, when i was in the states, i was on kc1 but when i came back up, i noticed that i couldn't connect to Bell. I thought that flashing to JC2 may help but it didn't.
In perkas file stash app there are 850 enabled modems and there is a kc1 modem there you could try. It Is cwm flashable also.
Swyped from a galaxy far far away.
I'm pretty sure its not the modem. I've already flashed multiple that are confirmed to work on Bell and have the 850 frequency.
I did have a problem one or two times after flashing a new rom and then our modem and it didn't work right away, but eventually it worked fine. Maybe if you give it some time it may work. Are you in a 1900 band area or 850 only?
Swyped from a galaxy far far away.
I live in a pretty big city so I would guess that I would have both frequencies. The phones been in this state for a good 24 hours now so I don't think waitings going to help. Do you think it may have something to do with the SIM?
It is possible that there is a problem with the sim. They aren't indestructible. You could try someone else's sim.
Swyped from a galaxy far far away.
Related
Repost from thread: http://forum.xda-developers.com/show...=771578&page=3
Hey Guys,
I have a GT-i9000 (Unlocked) and after a few firmware upgrades I have been noticing worse call receptions (more drops) and worse 3G data performance.
For example, I once had near perfect reception and few call drops along my drive home, now (5 firmwares later) I have been dropping calls like my old iPhone (actually worse) and what is more upsetting, yesterday my friends with their iPhones all had signal while I was getting the no service icon.
While i know the Captivate users can use the i9000 kernels (but swapping out the modem file) I wonder if anyone knows if I can use their Captivate modem file (JG8) instead of the one that comes with JM7 to fix my issues with reception and 3g performance .
What functionality will i lose? I travel to Germany often, will that cause issues with 1900Mhz and 2100Mhz bands ?
Is there any other reason that my signal would be so poor?? I really need help with this.....
Is anyone else using an unlocked i9000 on AT&T and having poor voice calls (signal/drops)?
What firmware are you using now? I would like to see if this relates to my issue.
I'm using JPC on my Bell i9000m and am starting to wonder if the reception is not as good as with JH2... I am contemplating using the JH2 modem file with JPC to see if it helps...
Coincidentally, I'll be in the US in a few weeks so I want to ensure I have good reception on AT&T as well.
i am using JM6
Just tried the modem from the the Captivate JG8, it would not even install.
So I am running JM7 now.
I will see how many dropped calls i get today.
JPC stopped booting for me and I am on JM7 as well - I'll post my comparative results as well tomorrow.
kurtkbee said:
Just tried the modem from the the Captivate JG8, it would not even install.
So I am running JM7 now.
I will see how many dropped calls i get today.
Click to expand...
Click to collapse
Just did some tests with my wife's iPhone (3gs) and my galaxy s.
Passing the same dead zone and her phone could make calls and mine would fail.
I wonder if i put it on gsm mode only if that would help.
Sent from my GT-I9000 using XDA App
I'm having a problem. I have a GT-I9000M device that shipped with the latest Eclair ROM (JH2) for that model. Worked fine of course.
A few days after rooting it I flashed JPK and then applied Doc's Mod. It changed the boot screen and product name in About Phone to GT-I9000 instead of GT-I9000M. I wasn't too worried, though, because I was sure that with the speeds and reception I was getting, that I was getting all the bands I was suppossed to.
Then I decided to flash JM8. I followed the instructions to do so, then applied Doc's Mod. The ROM was great but I was getting almost no reception (either 1 bar of "G" or zero bars "H" in most situations). Super slow/poor data and phone performance.
Then I decided to go back to the stock JH2 that the phone came with to get my speeds back. I flashed (using 512Pit) the PDA, Modem, and CSC for the device. Booted up and ran great, and both boot screen and About Phone have changed back to GT-I9000M. But while I'm getting some "H" reception, reception over all has been quite poor and not what I got originally with the device (or so it seems).
How can I check to see what bands I'm actively getting and which I'm not? What steps should I take to resolve this? Thanks in advance!
Grab the SGS Tools from the market. It has some secret codes that will answer your question.
After testing, my Galaxy S is definietly only getting minimal 1900 3G coverage everywhere despite my other phones pulling down very strong 850. So something is definitely wrong it sems, how would I go about fixing it?
Sent from my GT-I9000M using XDA App
chambo622 said:
After testing, my Galaxy S is definietly only getting minimal 1900 3G coverage everywhere despite my other phones pulling down very strong 850. So something is definitely wrong it sems, how would I go about fixing it?
Sent from my GT-I9000M using XDA App
Click to expand...
Click to collapse
Follow my instructions here.
you need to install BMC product code, right now i bet your product code is KOR, i was having same problem only getting 1900 band, after flash back to JH2 change my product/sale code to BMC, then wcdma 850 will work again
Once I flashed back to UGJG8 I was able to change the product code which fixed it right away (that didn't work from JH2). After fixing, I flashed back JH2 again and it continued to work fine. I then flashed JPK and it continued to work fine. Although if I want to downgrade from JPK, I now know that I need to go to UGJG8 first. Thanks for all the help!
I have a t-mobile galaxy tab that I am now using on Att, I installed the newest overcome rom, have been trying different modems but so far cannot seem to be able to get 3g to work. To clarify I am using att sim card in a att 3g area. Is there a specific modem to achieve this or some settings I need to set?
My t-mobile vibrant that is unlocked, works perfectly fine with the same att sim and I get 3g, can make calls and use data simultaneously.
Have you gone through your vpn settings?
Sent from my HTC HD2 using XDA Premium App
I have checked the APN settings and everything looks the same as what is set on my vibrant that is getting 3g.
I understand there ARE hardware differences between AT&T and T-Mo versions. As a result....only Edge on T-Mo network with AT&T tab....and only Edge on AT&T network with T-Mo tab.
I know...sux!
Oh, I was hoping that the hardware was just the same and the software was different on each carrier, like each one only enabled certain frequencies. Especially since the Vibrant is able to get 3g with At&t.
Big differences in the radios. They are compatible on each others voice frequencies, but they don't have the correct data frequencies.
what are your apn settings to make the att sim work and get data??
I flashed overcome v2.0.0 gold on my tmobile tab and flashed the jk3 modem for att... is that the modem I need to flash to work with at&t? I only get voice and 2G only. Someone said maybe I need to flash jpz modem? would that get 3g data on my tmobile tab with at&t sim?
I give up. What's the point of posting accurate information if people won't read it?
rangercaptain said:
I give up. What's the point of posting accurate information if people won't read it?
Click to expand...
Click to collapse
Standing right beside you Captain.
I feel sad Cap, the crush on galaxy tab made me buy a Tmo TAB and I am a ATT user. I just want to sell my current one and get a ATT to enable 3G data...damn...
I have two tabs: the t-mobile tab I first bought, and the at&t tab I bought after I learned.
Hi guys,
I bought my Samsung Galaxy S in Europe and I'm currently using Darky Rom 10.1 (Android 2.3.3).
I'm in Australia for 1 year and I can't get a service with Telstra (I bought a new sim card) when I'm "far" from big town. My friend bought a phone with telstra and he gets full bar signal when I get no service. It's almost okay when I'm in a big town like Cairns (I just visited this one for the moment).
I went to the Telstra Dealer shop to ask about the modem they used because it's a different frequency (850Mhz from what I read).
They told me they use ZTE or ZTA but I can't get to find it to download.
I tried several modem like jvk, jvh, jvo, ... but I can't get the SGS to work like I'm used to.
Can anybody help me with this ? A link with a cwm modem would be highly appreciated because I can't get internet everywhere and it's really expensive.
Thank you.
Here is a Telstra 2.2 modem DVJP9 which hopefully will help sort out your data issues. http://www.mediafire.com/?qdangyv87dtx1ai
I couldn't find a CWM zip for it, so you'll have to use Odin to get it on your Phone.
Remember as its a modem.bin, flash in the 'Phone' part in Odin.
If the hardware of your phone does not support 850MHz then changing modem firmware will not help unfortunately. In an Australian city you might be ok but coverage will still be not great as you will be running 3G on 1900MHz from memory and in the country you will be offline as all Telstra coverage efforts seem to have gone into 850MHz both in the country and city.
jim5055 said:
If the hardware of your phone does not support 850MHz then changing modem firmware will not help unfortunately. In an Australian city you might be ok but coverage will still be not great as you will be running 3G on 1900MHz from memory and in the country you will be offline as all Telstra coverage efforts seem to have gone into 850MHz both in the country and city.
Click to expand...
Click to collapse
Ouch, that's what I was afraid of. I'll try the modem first and see. If that doesn't work, I'll have to buy a cheap phone.
Thanks a lot.
http://forum.xda-developers.com/showthread.php?t=934409
Check out this thread, there are hellstra owners in there, they will be better suited to giving you an answer
There was some buzz a couple of weeks back about reflashing the modems in the Samsung Galaxy Note to gain access to T-Mobile's HSPA+ network.
Is there anything comparable for the Samsung Captivate? I realize we're talking about 3G here and not LTE. I want to take my Captivate, which is SIM unlocked, to My Simple Mobile. But they run off T-Mobile's network. I've searched around and have come up empty.
FWIW, I'm running CM7 and not the stock ROM.
I believe u would only b able to get the Edge on T mobile. No 3g.
Sent by XDA Premium App
The Captivate's hardware isn't physically capable of HSPA+. I haven't heard about using these modems, but as stated above, usually the deal with T-Mobile is EDGE only. I don't think Vibrant (T-Mobile) modems work, so there doesn't seem to be a solution.
captivate technically is a 3g device, we only get hspa by using a re-oriented i9000 kernel and an i9000 modem. because its the same hardware... <backspace rant>
Please use the Q&A Forum for questions &
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Moving to Q&A
Only EDGE
You can only get EDGE on your Captivate. It is a hardware issue. You cannot do anything about it. I have mine running on T-Mo and unless somebody has a way of physically changing the hardware to upgrade the capability it will never be more than a fake 3G because EDGE isn't even really 3G. It is more like 2.75 G if there was such a thing.