yashsingh1/xdaforums huggingface dataset:
[Captivate Android Development] krazyphire:
Anyone have an opinion on battery life of JL2 vs NKP1? I have JL2 and the battery is good but it can't lock a GPS sat to save its life. So I'm thinking of going back the NKP1 but not quite sure of the battery
[Captivate Android Development] clemmie:
What am I doing wrong here?

Hey folks, I lack Bluetooth with SpeedMod, so I'm trying to flash a new modem and having a heck of a time doing it. Here's the process:

Reboot into recovery mode/

install zip from sdcard/

choose zip from sdcard/

update.ugjk4.modem.zip/

Confirm install?/

Yes - Install update.ugjk4.modem.zip/

-Installing: SDCARD:update.ugjk4.modem.zip

Finding update package...

Opening update package...

E:Can't open /mnt/sdcard/update.ugjk4.modem.zip

(bad)

Installation aborted.

Anything pop out at anyone? I am using the link from page one in this thread for the modem, btw. I am thinking about trying TLJL3 maybe.

Also, I haven't seen a link to the Rogers stock 2.2 modem here, UXJL1. Anyone have a link in case I need to revert? I have backed up the ROM with ROM Manager, would it be part of that package?

Thanks in advance.
[Captivate Android Development] :
I do. JK4 seems to work the best for me. Lowest battery drain. Clear call quality. Pretty fast dl/up speeds and consistent. Ive tried several and Im happy with this one.
[Captivate Android Development] shoman94:
I can tell you that KP1 has excellent battery life......great reception also....
[Captivate Android Development] Hondo209:
Thanx man. Had JK4 before and liked it.
[Captivate Android Development] xreflection:
Which modem is best for mid-atlantic/northeast? I'm currently using JL3.
[Captivate Android Development] itdiestoday:
Go JK4 or KP1. JL2 seems to drain battery faster than all the others, but thats just for me.
[Captivate Android Development] shoman94:
Well.... I had KP1... ran into some data inconsistencies so I decided to try JK4.... It ran a bit better.... battery was about the same....so last night I flashed the Armani JL2 from TEAM KOMIN's website.... for some reason its a different size from the other JL2 links..... I don't know if there is a difference?

Well... this modem just rocks.... It takes a touch longer than JK4 for lock in GPS... but the coverage it has with an 850/1900mhz tower system is great. It switch when its suppose to and has excellent poor coverage strenght. No facts on battery life but its on par with JK4 at the moment.
[Captivate Android Development] froli13:
Didn't know about this one! I'll give it a try, thanks!
[Captivate Android Development] shoman94:
Not a problem..... anxious to see if others have the luck I'm having....
[Captivate Android Development] froli13:
I live in a place with poor coverage I still have good signal strength so far. Will see in a couple of days if there's a real improvement. :cool:
[Captivate Android Development] fractaline:
@ shoman94 or any of you kp1 users, wanted to confirm which wcdma bands are accesable with this modem? i read ALL recently ......that would be great.
[Captivate Android Development] shoman94:
All except 900mhz... you would have to enable that manually after every reboot...
[Captivate Android Development] :
We really need a Mod to put up the latest modems (kp1 and jl2) on the first post so that we can easily get to them instead of having to dive in various pages to find the most recent modems.

Thanks to all of the contributors though for adding new modems for everyone to try!
[Captivate Android Development] shoman94:
Before you open this thread..... there is a paper clip next to the title. Click that and it will show all downloads available in the thread.
[Captivate Android Development] :
On the computer yes, on the XDA app, no.
[Captivate Android Development] AJerman:
Never even knew about that, thanks!
[Captivate Android Development] shoman94:
No problem
[Captivate Android Development] wes78:
I'm gonna get an i9000 update.zip, because I have Firebird kernel with Cognition 3.04.

Is Cognition an i9000-based Rom?
[Captivate Android Development] LlamaLord:
I am looking for a moden that works idc about battery lol i keep getting so many dropped calls!

This is what i have

Model - samsung sgh-i897

Firmware - 2.2.1

Kernal- 2.6.32.9

Build-serendipity 5.11

Right now i have ucji6 install and it sucks also tried 4 and that sucks any one got a good one to use with my specs...
[Captivate Android Development] s44:
Serendipity is i9000 base, not native Cap, so you can't use JJ4 or JI6.

Try JK3. Seems to have no major issues for anyone.
[Captivate Android Development] :
Try my combo (its in my sig) since you're already using Serendipity. Add the Speedmod kernel to it along with the JK4 modem (found in the second post). JK4 is widely used by a lot of members and seems to be right in the middle as far as dl/ul speeds, battery, reception and GPS. Hope this helps you.
[Captivate Android Development] LlamaLord:
Installing jk4 now will let you know. Also all ready have speed kernal. I hope this helps becuz i found out a problem. When i get a call it drops a call right away then i get service back so i never get calls...anyone else get this...
[Captivate Android Development] axis01:
JK4 will probably fix your woes. Since you're running a i9000 rom, you have to run a modem that's compatible. The big three to date are JK4, JL3, and KP1. Don't know about the newer ones. JL3 seems to work the best for me, but you can try them all out to see what works best for you.
[Captivate Android Development] AReynante:
I live in southern California, and I used jk4 for a while, but out of kp1, jk4, and JL3, I found that JL3 has the best voice over phone calls, and best download. I don't know about any other modems that have surfaced/came out, but I like Jl3 the best.

(This was just to add to your post to the other user)
[Captivate Android Development] ragincajun713:
Any links for baseband version I897UCKB1? Or a tutorial/reference guide on how to back up a modem before flashing a new one?
[Captivate Android Development] meadhros:
http://www.multiupload.com/EL2EF7CBHV
[Captivate Android Development] :
No clockwork version? I cant seem to find a clockwork version of KB1 anywhere...
[Captivate Android Development] existz:
Here ya go
[Captivate Android Development] :
Awesome, thanks!
[Captivate Android Development] whitesox311:
nmmmmmmmmmmm
[Captivate Android Development] whitesox311:
fsdafadsfsadfsdaasdsadasfsa
[Captivate Android Development] papilliond:
Does KB1 have 850 default or available?
[Captivate Android Development] raezza:
Default for me on at&t grabbed 1900 band 2. I was not able to change from 1900 to 850 via *#2263# while using the KB1 modem, please let me know if you are successful.

I am using the Fusion ROM

R
[Captivate Android Development] papilliond:
I'm not an expert on these things but after much trial and error i've found the only way you will be able to use a specific band is if you disable all other bands. If 850 is avaliable and is strongest it will not switch to wcdma 1900 unless you disable the 850 band. Because the 850 band is the most widely used band in the US it is probably not a good idea to have it disabled because when your lose signal strength you will go completely out of service rather than just switching to the alternate band. What might be different in your case raezza is that you live in Alaska which might run off of towers in Canada. Because Canada is Rogers you might want to find out what Modem works best there. I (didn't) know that Rogers is I896 captivate so the best modem available for you might actually be a combo specific for the i896. Hopes this helps.
[Captivate Android Development] FeO2:
Rogers is I896 Captivate. I find the KP1 modem using 850 band the best for me.
[Captivate Android Development] avs420:
I flashed Cog 4.1 and my internet speeds are terrible on KB1

I tried a couple of other modems I found in SGS tools while I was on the road and neither improved them.

I was using the DG 2.2 Froyo leak before I flashed Cog 4.1 and I was getting 2.5-3.5Mbps on the Speedtest app. Now I'm LUCKY if I can pull 1Mbps and in most cases it's 250Kbps-500Kbps

What the heck can I do to restore good Internet speeds??
[Captivate Android Development] vaiol123:
Flash a modem with HSUPA is the best I can tell you to do. I got great speeds with some of the i9000 modems, but I haven't played around too much with KB1 yet.
[Captivate Android Development] fezzy102:
on fusion has anyone tried the jj4 modem its 2.2 i hear alot about kb1 and not that much good about it just was woundering about jj4 or another with the stock voodoo kernal?
[Captivate Android Development] JGGW:
I had good results that I would closely compare to jk4 if I were to try and benchmark what I thought of it so that you can get an idea of how it was.
[Captivate Android Development] s2h2golf:
JPG for CM7

If you are looking for the JPG modem that is compatible with CM7, here it is. It is CWM flashable. If you want to add any other modem not listed at CM7, all you have to do is extract the modem.bin file from the .zip file listed at the beginning of this thread and replace the modem.bin file in the attached CM7 flashable modem .zip. It worked fine for me, but kept switching between Edge, 3G and H. Kansas City Metro area. YMMV.
[Captivate Android Development] kevalin:
I had the same issue with Cog 4.1.1 and KB1; in fact, all of the phone's functions became laggy. I'm currently using Speedmod's latest with JK4, and the phone is running much more smoothly.

Only thing is, though the battery life is amazing when the phone is idle, burning less than 5% in 7 or 8 hours, battery life with the phone in use is MUCH worse than it was when I had this modem/kernel combo with Cog 3.02. I'm thinking of giving KP1 or JK3 a try. I'm in the San Francisco Bay area -does anyone have a take on this idea or any other suggestions, re. modem/kernel combinations?
[Captivate Android Development] fractaline:
I flashed kp1 last and was surprised to find ul faster than dl ....any one else finding this? I got 3.5 Up and 2.2 down. The speeds themselves are unremarkable as the weather is thick rain , but the ratio is interesting. I can confirm it's a battery hog, but I haven't tried another kernel yet. I'm using fire fly 2.4 speed mod 13 c. 13 a is meant to help
[Captivate Android Development] krazyphire:
KP1 is no battery hog. Probably just your config which always varies from rom to rom so its hard to know what is causing it. I regularly get 30+hrs with KP1 and darkyy 9.3. Has the best browsing speed for me and the best GPS tracking! :)

Might just be its ability to catch a signal in your area. If its searching too much that will drain the battery.
[Captivate Android Development] dsc522758:
First post to Modem section.

I am in the Dallas/Ft. Worth area. Is it true different areas (U.S.) can get different results per the modem? I just flashed Phoenix Rising 7.0 and getting no bars in my house when I used to get multiple bars using Phoenix 4.5. I love the ROM but thinking I may need to try another modem.

Anyone in the DFW area using a modem you find just ROCKS?

Also...do you just use the SpeedTest app to check speeds for both wireless and non-wireless connections or is there something else?
[Captivate Android Development] NISMOFO:
I'm in DFW and using the JK4 modem without issues so far.
[Captivate Android Development] eliminat:
In DFW	I have great results with JK4 and JPG.
[Captivate Android Development] NISMOFO:
Which one has a better battery life? Also which kernal are you running? I have used speedmod, but not sure which others to try.

KB1 sucks.....sorry if that wasn't the right lingo, but it does. Its like having 2G.
[Captivate Android Development] NewbDroid:
I found this happened when I restored system data/settings with TB after flashing a new ROM. Solution --> Only restore missing apps + data, nothing else
[Captivate Android Development] caanda45:
I need help!!!

I am on FF2.5 with the following;

Based on Rogers 2.2

JK4 Modem

SuckerPunch-voodoo #7

Rooted

I am having huge issues with bluetooth and connection to my in car Parrot MKi-9200.

I am in Canada on Rogers and the phone isa Captivate I896 (I 897 AT&T the same except for firmware) So the question is which modem is compatible and has a reliable bluetooth.

I call Parrot and they say it is Android and the phone manufacture and I call Samsung they say it is the Parrot....ugh any solution out their that can give me voice (HSPA) and Data and a reliable bluetooth? I also need to ask this, is Bluetooth in with the modem, or the kernal?

Thanks for any replies in advance!!!!!
[Captivate Android Development] froli13:
If you want Bluetooth to work but you need a i9000 rom with a i9000 modem or a captivate rom with a captivate modem.
[Captivate Android Development] caanda45:
Froli13 what would you recommend? And thanks!!!!! Is not what I am running not compatible with each other?

Go Habs Go!!!!
[Captivate Android Development] KonaZXIII:
[Q]

Where are the newer modems being deposited as they release?

I check here often and theres nothing new, but I see discussion of newer modems people are using in other threads.

Is there a different modem thread I'm unaware of?
[Captivate Android Development] BigBen:
There's a more up-to-date thread in this forum: I9000 Modems Q4 2010 - Q1 2011 or something like that. Find it on the first few pages of the Dev forum.
[Captivate Android Development] caanda45:
Here it is ....http://xdaforums.com/showthread.php?t=876391
[Captivate Android Development] oblivianz:
Are we suppose to recalibrate battery after flashing a new modem?
[Captivate Android Development] fractaline:
oblivianz... I was wondering the same thing, i,ve been testing different modems for the last couple weeks and my battery life seems to be dwindling......

BTW, i see you're using optus with the captivate , have you got umts 900 working well? could never find a solid answer on this. i thought the radio chip could access either, 900/1700/2100 or 850/1900/2100. i'd love to know if it was an option, i'm currently with telstra.
[Captivate Android Development] oblivianz:
Sorry I would love to help but I don't know how to check. From what I know, the phone is getting pretty decent GSM and UTMS signals from the JK4 modem.

But if you want to know the specifics, you can always tell me how to check and I'll let you know my results.
[Captivate Android Development] fractaline:
Cool, well if you're in sydney, you should be getting good signal with 2100 which the captivate certainly has. To check at any given time dial *#1100# in your dialer. If you're keen to go further you can dial *#2263# and deselect automatic then select wcdma 900 only and see if you get a signal at all. this is all safe and reversible. When you're done just put it back on automatic.

No harm in collaborating the the battery if you're in doubt of it's performance after some changes you've made...that's what I'm thinking.

let me know what you find out.

Sent from a fire fly's abdomen using morse code
[Captivate Android Development] oblivianz:
WCDMA 900 alone is working perfectly for me, I'm getting full signal.
[Captivate Android Development] fractaline:
Wow, that's great news. It's good to know.... Thanks, for checking....

Sent from a fire fly's abdomen using morse code
[Captivate Android Development] brianray14:
Posted this question on another thread, but wanted to post here too. I'm about to test out the jq1 modem because of the positive comments about it extending battery life. Can any one conform that it works around florida area? I'd test it myself, but last time I flashed a modem, I royally foobared it and had to reflash my rom
[Captivate Android Development] shoman94:
It won't work for you if you are on a stock Captivate if that what you are on. If you are on an i9000 kernel then flash your modem using the method on my link for it to work properly.
[Captivate Android Development] brianray14:
I'm running serendipity 6.2 currently with jk4.. I'll give your link a shot.. Thx for the reply
[Captivate Android Development] BigBen:
Sorry about your modem flashing problem. The thread Shoman posted should help. JQ1 worked OK for me with Phoenix Ulitmate ROM. I'm in the West Palm area.

JQ1 apparently didn't impress me enough to keep me using it, but YMMV. On the other hand, I can't say I had any problems with it, either. It worked.

As to one modem using less battery, that is very subjective IMO. 99.99% of those comments are pretty loosey-goosey on hard facts and scientific method, to say the least. It's impossible to attribute battery useage to one factor or the other, unless you are an expert and conduct scientific testing IMHO.

There are one or two knowledgeable posts on the subject of battery useage. One expert member, I can't remember who, did a good write-up. But my advice is don't spend a lot of time running off trying this modem or that, this method or that, calibrate, wipe stats, etc. based on a user's opinion, unless it looks like a well-thought out opinion.

Final bit of advice about modems. There's the call quality, of course. That's one factor you look for. The other you might be tempted to do, and here's the caution - Speedtest. The results of that will vary wildly from location to location, and time of day. Don't reject a modem just because of a poor Speedtest. Give yourself a day or so with the modem and test at various times.

Hope this helps.
[Captivate Android Development] :
I agree with you on the point about battery usage being subjective... but when you have a setup and its fresh out of the box with nothing done for a few days, then all you change is the modem (no kernel, no undervolting changes, no scheduling tasks) then you can see how easily it is to contribute the battery savings to the new modem. If thats all you have changed and its considerably better/worse then all signs point to the modem.

On your other point, call quality to me is very important. I use my phone as a phone all the time, so I need loud, clear voice. JQ1 has given me the loudest and clearest voice that I have ever had on my Captivate... even louder/clearer than KB1 with the audience chip activated. I can live with normal battery life as long as I have great call quality. The fact that JQ1 gave my awesome battery, GPS and dl/ul speeds was just a bonus. But it wasnt instant. I gave it some time and a few reboots (as well as clearing Dalvik cache so that it had to rebuild on the new modem) and it got consistantly better within a few days and not is peaked at being fantastic (for me at least).
[Captivate Android Development] BigBen:
Hi Adam,

Can't argue with what you wrote. When you can absolutely isolate improved battery results as you did, then yes, the modem change is the reason, no doubt.

My "rant" I guess goes more toward the millions of posts about battery life when the poster is changing kernels, themes, doing all sorts of things, and not really making an effort to be objective.

Thanks for your information. Good to have input such as yours!
[Captivate Android Development] H3llstorm:
I started out by flashing from JL2 (set at 850) to JPD & then JQ1.

Once I verified (in the GSM status screen) that I had JQ1 connected @ 850, I set band selection to automatic and rebooted. Back in Android, WCDMA 850 no longer had an asterisk next to it in the band selection menu, and in the GSM status screen my phone was connected at 1900.

I re-enabled 850 in the band selection menu and verified in the GSM status screen that I was connected at 850. Back in band selection I set it to automatic, and it only connected at 850.

It seems my phone will only connect at 1900 when I boot up with automatic band selected, and once I set it to 850, I can only re-connect at 1900 by setting it back to automatic and rebooting.

Based upon this post, it seems I'm better off using JL2.
[Captivate Android Development] eliminat:
Yesterday AT&T was working on their towers near me in DFW, Texas, so there were a lot of up and downs. With JQ1 I was watching it switch between 1900 and 850 all day depending on which signal got stronger and which dropped. It switched quickly, without interruption, even during calls and data.

I've tested most of the modems, and JQ1 has been the first modem to come out that I have dropped JK4 for. If you have any trouble with the modem, just follow the procedure at http://xdaforums.com/showpost.php?p=12156313&postcount=438 and that should take care of it. For many, including myself, that process was unnecessary though.

--------------------------------------------------

ROM: Cognition 3.04

Kernel: Firebird 2 1.0

Modem: JQ1

http://billjaquette.net
[Captivate Android Development] BigBen:
Interesting information, H3llStorm. Not sure what you mean by "Back in Android...."

I am also on JL2, set to Automatic and it seems to prefer 850 and is stable there, although today it was on 1900. I did the "cup your hand" around the base of the phone trick (I know, sounds like Voodoo, doesn't it.) After a bit, it changed over to 850 as my hand apparently blocked the 1900 signal.

Thanks for the link to the other thread, which has another link. It's all interesting information, but I still am not clear as to why everyone seems to think 850 is better than 1900. I suppose I could research it, and maybe I will, just to gain the knowlege.

Can you answer that question? You also seem to be suggesting that 850 is preferrable, am I right?
[Captivate Android Development] H3llstorm:
By "Back in Android...." I meant , after my phone re-booted.

I'm not suggesting that 850 is preferable, other people are. I'm just trying to find out. :D
[Captivate Android Development] H3llstorm:
I did that in the first line of my post. The rest is what happened after I did that.
[Captivate Android Development] BigBen:
Ha, ha, me too, then, trying to find out....

The eternal quest for knowledge of an OCD flasher :o If I find anything REALLY interesting (and reliable) about modi (plural of modem:rolleyes:) l will be back.
[Captivate Android Development] H3llstorm:
After following these instructions, I have 850 & 1900 enabled under JQ1. Now for more testing...
[Captivate Android Development] BigBen:
I don't know about those instructions, none of that stuff was necessary in my case, but if you're sure it worked for you, great.

Recalling some information from my Navy days (spent what seemed like a century one winter in OCS in Newport, BTW, up by you), the lower frequencies are effective over longer distances. My memory may be wrong on that but pretty sure I'm right.

And that squares with information I found in Wikipedia, where they say that 850 is more widely deployed in rural areas than urban, where 1900 is predominant. They also write in another article in Wikipedia "As demand grew, carriers acquired licenses in the 1800 MHz band. (Generally speaking, lower frequencies allow carriers to provide coverage over a larger area, while higher frequencies allow carriers to provide service to more customers in a smaller area.)"

I want to think that all of our modems (assuming they are both 850 and 1900 capable) are written to grab the strongest signal, thereby reducing battery usage, but that may be a false assumption, I don't know.

One thing I am pretty sure, I am not going to force my device to stay on one frequency. It seems that could be counterproductive in normal circumstances.

The one question that I want to look into now is which requires more "juice" to transmit on - the higher or the lower frequency? Or does the phone put out the same power on whatever frequency it's using?That's probably a real simple one that anyone with a basic electronics background can answer, but I will have to research it.