Database Develop

[Q] Best modem for Rogers on i9000 Kernel?

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.
Click to expand...
Click to collapse
Whats better about JK4?

nickm50 said:
Whats better about JK4?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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

[Q] What is the best Captivate ROM?

Which ROM is the best for the Captivate?
I have been running Assonance 5.2 since I rooted, but have recently been looking for something more. I have heard good things about Paragon and di11is ROM. I need full GPS functionality so ROMs without it are a dealbreaker.
Let the discussion begin.

I personally like darky's a lot. The most recent versions have added easier support for the captivate but may still need some work to get working. I love it though.

http://forum.xda-developers.com/showthread.php?t=919816

Andromeda seems to be the overall top at the moment. I know we're supposed to say "its preference" but no bull**** its the most stable rom and the quickest.
Sent from recent

I'm aware of the FAQ, I've flashed ROMs, and unbricked my phone. Just trying to stimulate a lively discussion.

wmbenham said:
Just trying to stimulate a flame war.
Click to expand...
Click to collapse
Fixed that for you, seriously just try them all based on what theme you like and what kernel features you need.

They all are good, some are better, all have bugs. Anyone who says other wise is lying to themselves

I really like serendipity. fast, stable, awesome.

ive tried cezars, cognition, and firefly out of those i liked cognition out of the box but loved firefly after some tweaks i think if u want stable go with one of the rogers 2.2 based roms

peachpuff said:
Fixed that for you, seriously just try them all based on what theme you like and what kernel features you need.
Click to expand...
Click to collapse
99% of the time no one starts a flame war except the people flaming the person who started the 'flame war'. Honestly though it is preference (although some ROMs are better then others stability wise)

praramis said:
ive tried cezars, cognition, and firefly out of those i liked cognition out of the box but loved firefly after some tweaks i think if u want stable go with one of the rogers 2.2 based roms
Click to expand...
Click to collapse
I've found the same, big fan of Firefly right now, I used the firebird kernal with ADW launcher. It's about the best my phone has ever run.
The reality is that they all work a bit different on different phones, your going to have to experiment with a few to find the one that makes your phone happy. I understand how this seems strange, they should all be identical ( it's the same hardware right? ) but it's not so, for some reason they behave differently.
Good luck finding the combo for yours.

Check my signature. Results speak!

I've been using Darky's on my Captivate, and it's been running amazing so far.

How come no one mentioned Pheonix rising?! I've tried cognition but this seems better stable and fast. And With the GO launcher my life has really changed.
Sent from my SGH-I897 using XDA App

Andromeda is really great. Can't say enough about it. turned my cappy into what I thought it would be when I bought it.

Yeah I'm a big Andromeda fan too. I also like Perception with the latest Speedmod kernel. I was running Paragon RC3 and got amazing battery life from it but overall it was kind of choppy and not as smooth as Andro and Perception/Speedmod. If I was going on a long trip I would flash Paragon and pop in my 3000mA battery. But as my daily driver I like Perception and Andromeda.

Keep coming back to Cognition 3.02. Just flashed Firebird Kernel because I wanted to enable HSUPA and Voodoo Sound. Went though I9000 JL3, JK4, and JK3 modems. In call volume on most I9000 modems are pretty low, but that can be fixed. However, I was having GPS problems with every modem I flashed, BUT, I came across the KP1 modem and it's working very well. Good call volume without tweaks, GPS lock in 10 to 15 seconds (within 10 to 15 meters accuracy), and solid upload/download (~1500 - 1700 kbps download / ~12000 kbps upload)
My phone really doesn't seem to like I9000 ROMS, though, and I've tried mostly all of them. Serendipity seemed to run the smoothest, but I didn't get good GPS performance so I went back to Cog 3.02, but that was before I came across the KP1 modem. I'll probably give Serendipity another try with the KP1 modem before too long.
Just like everyone says, it's all up to personal preference. I've had my Captivate for six weeks or so, and I'm starting to find out that the ROMs offered by the great developers who post on XDA are fantastic in and of themselves, but they can also be great starting points for you to find out what works on your personal device. Different kernels which support certain lagfixes, video and sound enhancements, and different modems are available so that each individual can find out what combination of ROM/Kernel/Modem works for them.

I haven't had my Captivate very long but I've flashed Cognition, Andromeda, and Serendipity already. The best so far for me in speed stability and appearance has been Serendipity. Just my opinion as everyones Captivate is different.

Serendipity bar none!!!

>>In call volume on most I9000 modems are pretty low, but that can be fixed.
How? By switching to a different modem, or what?
It would be nice if there were a chart that listed modems and kernals, showing the features in each and their compatibility with each other.
MexicanAmerican said:
Keep coming back to Cognition 3.02. Just flashed Firebird Kernel because I wanted to enable HSUPA and Voodoo Sound. Went though I9000 JL3, JK4, and JK3 modems. In call volume on most I9000 modems are pretty low, but that can be fixed. However, I was having GPS problems with every modem I flashed, BUT, I came across the KP1 modem and it's working very well. Good call volume without tweaks, GPS lock in 10 to 15 seconds (within 10 to 15 meters accuracy), and solid upload/download (~1500 - 1700 kbps download / ~12000 kbps upload)
My phone really doesn't seem to like I9000 ROMS, though, and I've tried mostly all of them. Serendipity seemed to run the smoothest, but I didn't get good GPS performance so I went back to Cog 3.02, but that was before I came across the KP1 modem. I'll probably give Serendipity another try with the KP1 modem before too long.
Just like everyone says, it's all up to personal preference. I've had my Captivate for six weeks or so, and I'm starting to find out that the ROMs offered by the great developers who post on XDA are fantastic in and of themselves, but they can also be great starting points for you to find out what works on your personal device. Different kernels which support certain lagfixes, video and sound enhancements, and different modems are available so that each individual can find out what combination of ROM/Kernel/Modem works for them.
Click to expand...
Click to collapse

best AT&T Radio for Signal and reception?

what is the best Radio for At&t reception and signal strength?
Thanks guys

chrisrotolo said:
what is the best Radio for At&t reception and signal strength?
Thanks guys
Click to expand...
Click to collapse
Well sounds like we have an WM user. On Android they are modems and to be honest it is a best one for your area. I use jk4 in Alaska

actually never has a winmo device I have dell streak, first droid device.
but Im asking so I can flash the wife's cappy, she's complaining about signal strength, let me check what rom she has, I believe she has 500mhz speedmod kernel on a i9000 based rom.
I though I saw some HTC droid's , like Evo refer to modem as Radio

chrisrotolo said:
actually never has a winmo device I have dell streak, first droid device.
but Im asking so I can flash the wife's cappy, she's complaining about signal strength, let me check what rom she has, I believe she has 500mhz speedmod kernel on a i9000 based rom.
I though I saw some HTC droid's , like Evo refer to modem as Radio
Click to expand...
Click to collapse
oh ok that makes sense. HTC use radios and not modems. just make sure that the rom fits the kernel and modem. it will be trial and error.

Not to be a stickler but doesn't this belong in the q4 -q1 modem thread?
Sent from a place my wife doesn't know about (yet)

mrhaley30705 said:
Not to be a stickler but doesn't this belong in the q4 -q1 modem thread?
Sent from a place my wife doesn't know about (yet)
Click to expand...
Click to collapse
Isn't zel a mod? He seemed alright with it's placement haha

It is like zelendel said it is mostly trial and error for your area but I would give JL2 and JK4 a try they have given me the best results JL2 better signal but JK4 almost the same signal but slightly better battery life for me anyway

I made some changes to build.prop to my Dell Streak on AT&T, based on a thread I found on xda, it seemed to boost my 3g speeds, will build.prop tweaks boost signal reception as well? possibly??
edit: nevermind, didnt find the tweaks in build.prop, or defualt.prop, are they somewhere else? or are they missing from build.prop?
the lines like ro.ril.gprs_class=12, etc.
and ro.ril.hsxpa=3, etc.

Dont forget the 3 new ones, kc1 and the 2 jp9 modems.
Sent from a place my wife doesn't know about (yet)

Best Modem for JVT?

Hi,
what Modem would you suggest to use with GB JVT?
My wifi signal is always rather weak (no or poor signal, when other devices still have a good connection) and I also have GPS issues sometimes. I was on JVQ till today but JVT modem does not seem so be any better.
I can still remember that both, wifi and GPS worked much better when I was on Froyo...
Any Ideas?

Semaphore kernel, fastest ive used, and most reliable and has support for init.d. if i helped please click on the thanks button

Im inthe UK and found exactly the same as you. Having tried a few modems im settled on ZSJPG. give it a try m8 see what you think. Not sure on battery drain seemed no more than the others but it keeps signal where JVT and JVQ was struggling.

GalaxySN00B:0 said:
Semaphore kernel, fastest ive used, and most reliable and has support for init.d. if i helped please click on the thanks button
Click to expand...
Click to collapse
Did he ask about kernel?
I have been using ZSJPG too. Best for me. You should really try it out

Likewise, ZSJPG is the best for me too. I found battery life is loads better with it as well, I believe it's a Japanese modem that's been optimised for use in built up areas though so it may depend on the area you're in. I'm in London, and it works amazingly for me...

Erakko said:
Did he ask about kernel?
I have been using ZSJPG too. Best for me. You should really try it out
Click to expand...
Click to collapse
He spoke about Wifi. This is controlled by the kernel.
GPS on the other hand is controlled (AFAIK) by the modem.
When I was in Deutschland I ran with KG3 and it was good for both battery life and speed.
I have tried ZSJPG and that's excellent for battery life and for call quality. I found it did dodgy things to my GPS and the download speeds.

So from what cointry sre yoy? Im from germany and like tje jvs modem
Sent from my GT-I9000 using Tapatalk

Follomon said:
So from what cointry sre yoy? Im from germany and like tje jvs modem
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
EDIT: Ignore what I just said, you were on Tapatalk. From Australia matey.
On XXJVT now and the JVT modem gives me no issues but I'm on Teamhacksungs ICS Build 6. Seems to have pretty much bugger all standby battery drain unless you sync google photos to your Gallery or involve the stock email app.

it all depends on the locations you're from ZSJPG is for mainly asian countries but it works a charm on other countries i recommend you go to a german galaxy s forum and asking there such as GOAtools.de to ask

[Q] Modems how do they work?

so i have a captivate, i love it. however my carrier has limited service where i live. i have seen people say they get better download and upload speed with different modems and i myself have flashed different modems and used speedtest app to see these differences. my question(s) are really as follows
can a modem give you better reception?
is it possible to make your antenna in your phone work harder to pick up better signal strength?
in general is there a way i can learn how modems work?
thanks smart peeps!
Gorship

bump
bump for hope.

Gorship said:
so i have a captivate, i love it. however my carrier has limited service where i live. i have seen people say they get better download and upload speed with different modems and i myself have flashed different modems and used speedtest app to see these differences. my question(s) are really as follows
can a modem give you better reception?
is it possible to make your antenna in your phone work harder to pick up better signal strength?
in general is there a way i can learn how modems work?
thanks smart peeps!
Gorship
Click to expand...
Click to collapse
First, a modem us the binary file that runs the antenna. So if we were able to control and edit the binary (which we can't) you could potentially make the antenna "work harder".
so a modem works by controlling, software wise, the frequencies the antenna uses. For example, I9000 modems tell the antenna to also pick up hsupa, and that is why I9000 based roms have faster data. The modem needs to also be compatible with the kernel so it can run properly. This is why e can't use modems like JK4 on captivate based Roms.
flashing a modem can increase signal. It is all about where you are though. JK4, which is a great modem in Boston, might not be a great modem in San Francisco, or Detroit.
there is a sticky thread in the development section for this with a website that will help you pick out a new modem. Make sure it is compatible with your kernel first.
Sent from my GT-I9000 using XDA App

There is not an easy answer to this (I don't think) but here is an interesting read that may be of some help (or at least an interesting read )...
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Linux.Wireless.modem.html

4-2ndtwin said:
There is not an easy answer to this (I don't think) but here is an interesting read that may be of some help (or at least an interesting read )...
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Linux.Wireless.modem.html
Click to expand...
Click to collapse
as detailed as it can get..thanks for the read...

viny2cool said:
as detailed as it can get..thanks for the read...
Click to expand...
Click to collapse
True... Detailed.. However, mostly irrelevant..
When you flash a modem, you're flashing an operating system for the communications chip. It's an entire stand-alone operating system designed to minimalistically receive and transmit data. The communications chip is capable of running an entire device. This is evidant when you examine the binary. It contains keyboard, mouse and display drivers.
When the Captivate was released, it was released as a 3G device, not H, so its communications chip was configured to work as a 3G modem. This was likely a marketing decision as "3G" was all the rave at the time.
A modem won't improve your reception unless your old modem was configured incorrectly
As far as signal strength, it won't improve unless your old modem was configured incorrectly.
There are several tweaks which are applied in each version of modem firmware for different devices. Unfortunately, the communications chip is locked down/Closed-source Qualcrap.. So, we will never fully understand what configurations are available, nor can we do anything other than test and see which one works more effectively.

hey thank you so much guys, this is really interesting, sadly a little depressing but interesting. i have one last question then, since i am running my i897 captivate... with the ICS rom, does this mean i should use i9000 or i897 modems? i heard that i9000 modems were just better then i897 so i am using them... but if the above is true, i shoud be using i897 to get proper configuration of my device.
you guys are all awesome and ill be mashing the thanks button!
<3 Gorship

U have to use the specific modems for ICS... See here... http://forum.xda-developers.com/showpost.php?p=16843698&postcount=1
And more specifically...See this page... http://soggycashew.weebly.com/cm7miui--ics-modems.html

yea im flashing a few of the ics i897 vs the i9000 i was using... still though... i have full bars with my old blackberry bold 9000 compared to my cappy which has 1 or 2... i dont understand why.