I know the data speed on captivate GB bootloader based rom will always be less than i9000 based roms. I recently switched from apex to pinnacle and I never get H just 3G which has horrible speed.
Can I fix by using i9000 modem? Are they compatible?
sent from my cappy rocking gingerbread
No. I try it and data and text work but cant make any call
You need to combine modem with Kernel. To my knowledge no I9000 gb kernel works on i897 rom. Also the speed difference is just upload.
prbassplayer said:
You need to combine modem with Kernel. To my knowledge no I9000 gb kernel works on i897 rom. Also the speed difference is just upload.
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i noticed speed difference in basic internet surfing too. I dont H anywhere now which I used to have everywhere on i9000 roms...
Captivate roms, with the exception of the very latest leaks, don't show H, only 3G.
H= HSPA wich is only a upload speed increase. You can try different I897 modems see if you can increase your bandwith in your area. Personally I get about 3Mbs download and 300Kbs upload.
Edit: My observations are based on ATT network.
mrhaley30705 said:
Captivate roms, with the exception of the very latest leaks, don't show H, only 3G.
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So by latest leak you mean KJ3?
sent from my cappy rocking gingerbread
I think it started with ki1, then the next couple had the H+, but the last one didn't. I think it is kj3.
H and 3G usually have about the same dl (HSDPA)speed. The difference is in the upload (HSUPA), which is capped at about 350-375kb/s. The i9000 modems don't have that upload cap built in. The H+ is only cosmetic at this point, until att starts increasing speeds through the towers.
Related
Just wondering what you guys think the best modem is for Rogers in Canada when using GT-9000 modems. KP1 had bad GPS, terrible reception and bad call clarity so that one is out. JL3 is good for everything, but calls seem to lag when going out and information takes a bit to start flowing to the phone. I haven't used JK4, but will try it soon.
What have you guys used and what are your experiences?
Hi
I'm also looking for this information. I recently updated to Rogers stock Android 2.2, flashed the speedmod kernel so that I can have the BLN and now when I try to do voice over bluetooth in my car all I get is static. I've done a bunch of reading and this seems to be due to the use of the stock i896 modem with the i9000 based speedmod kernel, correct?
So, in light of this, what modem should I be using on my Canadian Rogers Captivate i896?
Thanks
Jason
I was just about to post a similar question to this until I found this thread googling "KP1 i9000" sweet.
Really itching to flash Fireball 2 but I don't feel like trying all the modems :l
Subscribing......
User LimaI896 has this in his signature:
Samsung I896 Captivate
ROM: Serendipity's 4.0.1
Kernel: Hardcore's SpeedMod K12P
Modem: JL3
Might try flashing his ROM, kernel and modem over the weekend..
I am running Perception 10.2 with the latest Firebird kernel and JK4 modem. I get decent phone and GPS performance with either JK4 or KP1. The only issue I am facing is that when the network switches to 1900 band, I do not get 3G signal.
The phone would be perfect if I can find a way to disable 1900 and just use 850 or 2100.
I'm running my own custom concoction of the Rogers Stock Rom with junk removed, battery mod, Glitterballs' Kernel, and JK4 and couldn't be happier.
I'm considering packaging my ROM and releasing it.
Jk4 is where its at.
whiteguypl said:
Jk4 is where its at.
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Whats better about JK4?
nickm50 said:
Whats better about JK4?
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Using an i9000 modem and the WCDMA 850 band:
The UGJK3, UGJK4, and TLJL3 modems have rendered the below obsolete. Use one of them and you will have 850 WCDMA enabled by default.
JK4 modem provides the best signal and lowest voltage when unplugged therefore saving on battery. JL3 came in second and was just a tad bit higher in voltage use than the JK4. Both JK4 and JL3 stayed under 4000 while the other modems listed were about that threshold with a weaker signal.
trueish so you have to use an i9000 modem (jk3, jk4, jl2, jl3, jpd, kp1..etc) refering to i9000 roms, which most are using
and in my own testing it solved any issues i was having. although with these phones.. you never know and your phone might just hate whatever modem you put in it until one day it stops acting like a d*** for no apparent reason.
whiteguypl said:
Using an i9000 modem and the WCDMA 850 band:
The UGJK3, UGJK4, and TLJL3 modems have rendered the below obsolete. Use one of them and you will have 850 WCDMA enabled by default.
JK4 modem provides the best signal and lowest voltage when unplugged therefore saving on battery. JL3 came in second and was just a tad bit higher in voltage use than the JK4. Both JK4 and JL3 stayed under 4000 while the other modems listed were about that threshold with a weaker signal.
trueish so you have to use an i9000 modem (jk3, jk4, jl2, jl3, jpd, kp1..etc) refering to i9000 roms, which most are using
and in my own testing it solved any issues i was having. although with these phones.. you never know and your phone might just hate whatever modem you put in it until one day it stops acting like a d*** for no apparent reason.
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Thanks for the explanation. just flashed jk4, the calls are definately louder and clearer now. data is about the same.
SO.. noob question: JK4 would go well with my 2.2 running Cognition?
this is for damian. thanks
bumping this..
Is JK4 still the best modem for I9000M? thanks in advance
I'm running cognition 3.02 speed mod,and jk4 or kp1 and can't seem get the H signal, is it the rom Im using and is H all that much better than 3g. Thanks
rob1216 said:
I'm running cognition 3.02 speed mod,and jk4 or kp1 and can't seem get the H signal, is it the rom Im using and is H all that much better than 3g. Thanks
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H is basically like 3.5G. The speeds are all relative, and unless you are looking directly at the speeds, It's basically the same when your surfing the web. As for your connection, I haven't run cognition in a while so I don't know about that.
Dupontrocks11 said:
H is basically like 3.5G. The speeds are all relative, and unless you are looking directly at the speeds, It's basically the same when your surfing the web. As for your connection, I haven't run cognition in a while so I don't know about that.
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I don't think it is a part of Cog., but is part of Perception. I personally like Phoenix and it has HSPA enabled.
Gr8Danes said:
I don't think it is a part of Cog., but is part of Perception. I personally like Phoenix and it has HSPA enabled.
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Pheonix wass my first rom. Very very stable rom, I liked it but couldn't get over the unreliable battery. I'm on Ultimate JPY v5.6 right now (speedmod, tweaks, lagfix) and I'm getting about 18 hours with heavy usage.
Ok so if I want the H signal I need to change roms correct, not modems right? Was thinking of flashing perception anyway and using speed mod and jk4 modem. That should get me H?
Also, (for some crazy reason) it's possible when making the ROM to turn off the H and have the 3G only.
Just FYI.
rob1216 said:
Ok so if I want the H signal I need to change roms correct, not modems right? Was thinking of flashing perception anyway and using speed mod and jk4 modem. That should get me H?
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The HSDPA/HSUPA is not actually part of the ROM.
It's the Kernel/Modem that your using. It's only available on the i9000 based setups.
So if the ROM your using is i9000 based it will be enabled by default
Ya that's what I figured but when cog starts up it says i9000, but anyway I'll try perception see if it activates H.Thanks
I just flashed Perception 10.3 a few days ago and i get HSDPA.
3g/h depends on the modem, not the rom. most of the modems already have the h enabled.
mengbo said:
3g/h depends on the modem, not the rom. most of the modems already have the h enabled.
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But captivate based roms wont ever display H.
Sent from my SAMSUNG-SGH-I897 using Tapatalk
MikeyMike01 said:
Also, (for some crazy reason) it's possible when making the ROM to turn off the H and have the 3G only.
Just FYI.
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Battery consumption drops significantly if you lock the phone to UMTS 3G.
Sent from my SAMSUNG-SGH-I897 using XDA App
Just like everyone is saying, HSUPA is enabled once you install an I9000 modem.
On stock captivate ROMS (like Cognition), an "H" symbol will not appear, but you still have an HSUPA enabled if an I9000 modem is installed. Only I9000 based ROMs will show an "H".
The best way to check if you have HSUPA enabled on a stock captivate ROM is getting an internet speed test app and checking your upload speed. At my fastest, I get about 500kbps upload speeds with only 3G enabled.
I have an I9000 modem installed, and HSUPA is enabled, as you can tell from my internet speed test results, but my phone still shows "3G" because I use a ROM based on Rogers stock Froyo release.
Wow, good to know. All this time I thought the "H" was sub 3G speeds..
You'll have to excuse me, I'd been using an unlocked G1 on AT&T's network for almost two years; never had 3G until now.
Old
good to know, i am using that rom too. you can try speedmod kernel also, for the modem, it needs to be i9000 compatible.
I have success with both firebird kernal and speedmod kernel with the kp1 modem and the jk4 modem. You could tries these modems and see if they work for you. Not every modem will work the same for every phone in any location. You will just have to keep trying them out until you find one that works for you
well about every modem ive tried. aka or rom. works. just the poor call quality or slow network speeds. i tried speedmod last night. no go on ji6. whats wierd is on cognition or the leaked 2.2 froyo they work perfect on ji6. no matter the kernel. which i tried speed mod. glitterballs .4. so ill go out and find an i9000 kernel.
I am running dill's 6.0 with kp1 modem, 2 days now heavy phone use talking, texting, browsing and downloading. Absolutely no connection issues with kp1 at all so far. No voice quality issues either.
miketucky350 said:
hi everyone. I have a captivate. live in america. Well i have had slow network speeds with jk4 jk3. jl1 jl2 plus poor call quality on the other end. ect. but the stock jh7. and the froyo leaked ji6 modems kick ass where im at. it even relialably plays youtube while on on the edge network.
Ive come down to di11is roms are the fastest. smoothest and the BEST gps. no bugs. has any one tried that modem on those roms? ie 6.0 . well i use that modem on some other roms and i know you need a matching kernel. so i flashed kernel then modem. still boot loops. anyone found a combo that works? is there a voodoo sound/lagfix kernel that works with this rom/modem. on cognition 3.04 i used .v4 gb kernel/ji6. and worked great. just have much love for di11is roms
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If you read around, the pattern for modems is location based. It seems some modems work better in areas that other modems bomb out. I am going to take a chance and say you are in Kentucky if I read your user name correctly. It is helpful to others when talking about the modem that works best for you to be a little more specific then "I live in America". America can mean many different countries. (unfortunately in todays world climate it really only means one place)
Sorry just a pet peeve of mine.
For me in central florida jl2 has been the best. I will test ji6 to see how it goes for me. Hopefully it will become a preferred modem.
Again I am not trying to be a troll, sorry if it sounds like it.
phlunkie said:
If you read around, the pattern for modems is location based. It seems some modems work better in areas that other modems bomb out. I am going to take a chance and say you are in Kentucky if I read your user name correctly. It is helpful to others when talking about the modem that works best for you to be a little more specific then "I live in America". America can mean many different countries. (unfortunately in todays world climate it really only means one place)
Sorry just a pet peeve of mine.
For me in central florida jl2 has been the best. I will test ji6 to see how it goes for me. Hopefully it will become a preferred modem.
Again I am not trying to be a troll, sorry if it sounds like it.
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I don't understand that at all..... the only real difference is if the area covered is 850/1900 or 1900 only..... otherwise how can there be a difference?
shoman94 said:
I don't understand that at all..... the only real difference is if the area covered is 850/1900 or 1900 only..... otherwise how can there be a difference?
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I do not disagree with what you say. But reading around there are very similar findings in specific areas. I will look for the threads in the morning. Nyquil kicking in.
im auctually from indiana. sorry for putting up america. At first this modem stuff didnt make sense. How 5 different modems will have 5 bars but each one has different results. would be nice if it was like a pc. windows or linux or mac. where if the drivers installed they just work. Its just such a deal breaker when i get to work and the net is just slow even with 5 bars. (jl1 jl2. jk3 jk4) but with ji6 it works great. and speed test are wayy higher. am now checking out deviant roms. found i9000 with voodoo and ji6. hmm might be able to get di11is working with ji6 here in a minute!
well tried firebird 2.0. tried few other kernals no luck. i flashed kernal first. then modem. no luck. firebird says works will all modems. ive tried. both 959 vibrant ji6 and ucji6 cappy modem. same result. sends it to boot loop. its something easy. is it because its a i9000 based rom? cog 3.04 it works with all those kernals ive tried on dillis
I have a quick question, and this may be completely based on the crappy service in my area as I usually get around 2-3 bars. I absolutely LOVE this ROM, but I'm not sure if the problem here is in the ROM or just my service. I have read that non I-9000 ROM modems are generally capped around ~300kb/s upload, however it's showing my phone using HSDPA, so I'm a bit disappointed with the results of my speedtests. My friends have showed me SS's where they have speeds of ~1.5 mbps (with the same signal strength). Is this due to them using different ROMs or modems? Or is it just the bad coverage in my area? I'm grandfathered in the old AT&T unlimited data plan, so I used the phone a lot as a mobile AP so any suggestions how to increase the speed if possible would be greatly appreciated. I realize it won't be as good as a broadband connection, but 300kb/s upload seems a bit ridiculous.
Since I don't have the appropriate number of posts to embed, I'm attaching the screenshot if someone would be so kind as to take a look.
Thank you
Change Your Modem, The Jl3 and Jk4 are my personal favourites.
http://db.tt/Wb4Aj4Q here is a link to the jl3 modem.
If there is evil in this world it lurks in the hearts of man.
kisnerct said:
I have a quick question, and this may be completely based on the crappy service in my area as I usually get around 2-3 bars. I absolutely LOVE this ROM, but I'm not sure if the problem here is in the ROM or just my service. I have read that non I-9000 ROM modems are generally capped around ~300kb/s upload, however it's showing my phone using HSDPA, so I'm a bit disappointed with the results of my speedtests. My friends have showed me SS's where they have speeds of ~1.5 mbps (with the same signal strength). Is this due to them using different ROMs or modems? Or is it just the bad coverage in my area? I'm grandfathered in the old AT&T unlimited data plan, so I used the phone a lot as a mobile AP so any suggestions how to increase the speed if possible would be greatly appreciated. I realize it won't be as good as a broadband connection, but 300kb/s upload seems a bit ridiculous.
Since I don't have the appropriate number of posts to embed, I'm attaching the screenshot if someone would be so kind as to take a look.
Thank you
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Fasty 2.5 uses kb1 modem, perhaps it's not good in your area.
If you liked Fasty 2.5, then i am sure you ll love Fasty II v2.0 it uses kh3 modem, try it. It might solve yourarea issue.
Flashing an i9000 rom should get you the higher upload speeds (Mosaic is pretty good). I went from 300 to 1000 upload.
I am wondering if there is an alternative to the stock KJ2 modem. I am running rooted stock KJ2 rom with Boog's kernel. My download speed is decent at approx 2000kbps but upload speed barely reaches 300kbps! Any suggestions?
You won't see much better than that add none of the captivate modems support hsupa which is the BS 4g network they have. You would have to switch to an i9000 based ROM and modem
Sent from my SAMSUNG-SGH-I897 using xda premium
So this is the "trade-off" everyone talks about between audience chip support on i897 based roms and hsupa support on i9000 roms?
Yup. You can try all the modems found in the i897 section here some might offer a higher download speed but as for upload you wont see much faster past 300kbs.
I guess it's worth the trade off...
Thanks guys!
NamDark said:
I guess it's worth the trade off...
Thanks guys!
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I think so... after all it's a phone at heart right??
No it's a miniature tablet that happens to make phone calls