yashsingh1/xdaforums huggingface dataset:
[Captivate Android Development] nkrick:
I seem to be having problems with the UXJL1 modem in Cognition 3.04. I live in a 1900 only area. At my home I get good download speeds (3000+ Kb/s) but relatively low upload speeds (~150 Kb/s). The real problem is at work where I get ~300 Kb/s down and ~90 KB/s up. When using stock (UCJH7 eclair modem) I would get ~1500 Kb/s up and ~160 Kb/s down when at work. Voice quality on the UXJL1 modem is excellent and data in some locations is just as good as the UCJH7 modem, but in some locations is is extremely slow. Both home and work show HSDPA in Settings | About phone | Status.

Has anyone tried using the AT&T UCJJ4 or UCJI6 modem on Cog 3.x? I want to stick to the Captivate Kernel for BT voice support. Are there any other modems that work with a Captivate Kernel without causing problems?
[Captivate Android Development] Stealthed_Rouge:
I used the JI6 modem for a bit.. Sucked my batt alot but was good data speeds and voice.. But i only make calls once or twice a day. Via cog 3.02 stack kernel.

Sent from MY: SGH-I897/COG 3.02/Firebird 2 0.3 no bln/Jl2
[Captivate Android Development] bama9393:
simple user

I have a captivate that I rooted and enabled sideloading. I havent really used any of the fancy roms. (they do sound nice) My problem is that I am wanting to just stay with 2.1 stock from at&t but my signal sucks. My build number is Eclair.UCJH7 so I guess that would make my modem OTA UCJH7 and I was wondering if any of the other modem versions would make my phone get a better signal? All the other phones in my house get great reception. Sorry to be so long but I figure if you are nice enough to help me I didnt want to leave out any details. Thank you for your time.
[Captivate Android Development] evrionis:
I have a stock captivate rogers ROM and just installed the speedmon kernel and wish to install a modem since my bluetooth does not work well.

I should have the default modem, but cannot be sure what it is called. How can I tell what it is called so I can be able to download it and re-flash it back in case the new modem does not work.
[Captivate Android Development] s44:
Bluetooth will never work properly when combining a Captivate-base ROM (like Cognition) with an i9000-base kernel (like speedmod). You'll have to switch to a different ROM to get bluetooth voice with that kernel.

Stock Cognition modem is JL1.
[Captivate Android Development] evrionis:
I know and have the new modem downloaded and ready to install.

I just want the stock modem to be able to re-install it later on if required.

Do you know what type of modem is in the stock or how to find out the name or where to download it?

Is the baseband version the modem name that is located in the about references?
[Captivate Android Development] s44:
No, I'm pretty sure you don't know. For regular voice issues you have to match kernel to modem. But for the bluetooth voice issue, you have to match *ROM* to kernel to modem.
[Captivate Android Development] evrionis:
ok. most of what I read matched modem with kernel and fixed the problem.
[Captivate Android Development] haydonxda:
What happened to the KP1 modem? I swear I downloaded it off of the first or second post in this thread earlier. No where to be seen now?
[Captivate Android Development] froli13:
There you go!
[Captivate Android Development] Kionic:
Anyone have trouble flashing jk4 through clockwork?
[Captivate Android Development] haydonxda:
Awesome. Using it with Serendipity this firmware gives me fewer dropped calls, great battery, better GPS. Like it lots.
[Captivate Android Development] amtrakcn:
I believe TLJL3 is a SGH-T959 phone, not an GT-i9000 one
[Captivate Android Development] thatoneguy99:
So I had jk4 this morning but coukdnt get my bluetooth headphones to pair up. So I flashed jj4 and after the reboot after the flash I lost all of my external sd card files. How is this possible? I didn't think they were linked in any kind of way.
[Captivate Android Development] thatoneguy99:
So I rebooted again and now its showing all my files. Huh.
[Captivate Android Development] ke5tny:
Will the stock jh7 work with cog 3.04.. Is there a cwm for it
[Captivate Android Development] ke5tny:
In theory the shorter a radio wave is the higher quality the signal, but the more power you need to run it, and it travels a shorter distance. The lower frequencies like 850 will penetrate better. In broader terms I can broadcast a 145 mhz signal on ham radio using the same wattage at a much greater distance because it is a longer waveform.
[Captivate Android Development] nosenuggets45:
I wasn't sure where to post this, so I figured the modem thread would be the most appropriate. I couldn't decide between all the different modems, so I did a little, unscientific test between JK4, JL3, and i9088ZNKP1. I was testing for best overall speeds, max speeds (I don't find minimum speeds all that relative due to server load and other extraneous variables), and battery usage.

I'm running Darky's 9.0.2 with SuckerPunch-SmR 1.28ghz 500mhz kernel. I didn't change any CPU voltages for the test. Brightness was all the way down. The averages were taken from 8 tests of SpeedTest from the MD server.

Note: The battery usage, although in the download row, is referring to the entire modem.

Here are the results:

For where I live and my phone, JK4 seems to be the best when it comes to a trade off between speeds and battery usage. The up speed seems to be a tad lower, but I'm more concerned with the download speed.
[Captivate Android Development] Guto ViP:
Good night dudes. I have a little question:

What is the best Modem for Galaxy S I9000B? I'm using Doc's ROM 9.1.4 JS3 with Hardcore K12Q for I9000B (Able me to use ROMs of the International SGS).
[Captivate Android Development] existz:
It really just depends, some modems are better than others in certain regions, you will just have to test and see which is best for you, one for me might not be as good for you...
[Captivate Android Development] Guto ViP:
Thanks existz, so what test can i do?

Cya.
[Captivate Android Development] thatoneguy99:
How can I get a modem out of a ROM? I have SGS kernel flasher which is awesome for kernels. Is there something like that for modems? Im looking for jk3, which the link in the OP does not work.
[Captivate Android Development] JGGW:
you gotta change them out, mix and match till you find one that works for what you need. Some are better on GPS and Data but call quality is lessened, others drain more battery.

Gotta combine them and find the right combination for you in the area you live in.
[Captivate Android Development] existz:
The modem.bin file is in the /updates folder of a rom, just replace that file with the one in a working modem cwm (say jl2 works, just replace the modem file with the jk3 one)
[Captivate Android Development] thatoneguy99:
Thanks ill give it a shot.
[Captivate Android Development] thatoneguy99:
So it worked. Yeah!!! So far im on Cog 3.04 with Firebird 2.05 with JK3 modem. Jk3 has given me the best everything so far. Battery life, gps, call quality, uploading and downloading speeds. Finally I've got the perfect mix and match. Does anyone want the new JK3 CWM file that I made in this process?
[Captivate Android Development] thatoneguy99:
JK3

Here it is either way. I'm just putting it up incase someone wants it. Rather than waiting until someone asks for it...:D
[Captivate Android Development] Theojt:
How did you get those battery readings (Battery Left or other)? Under what constraints did you collect the battery data (just during the SpeedTest, 5 mins of active call, etc.)?
[Captivate Android Development] nosenuggets45:
Those were taken from Battery Stats from Secret Codes on SGSTools. The readings were at idle and I let it sit for about a minute to observe any fluctuations (due to the possiblity of background processes). I'll probably take more readings with a call in the background. As I said, it was an unscientific test, just to get an idea of the modems.
[Captivate Android Development] agaruba:
For a rogers sgh i896 running darky 9.0.2 rom with suckerpunch oc/UV 1120 - 500hz kernel I'm looking for a modem that gives me the best battery life out of these three. Ugjl2 tljl3 and znkp1. Any recommendations? (I tried the ugjl2 and tljl3 on a speedmod kernel k12q and never saw the 20hr-2day battery life people brag about). My main intention is to last close to all day on a single batter charge with moderate usage.
[Captivate Android Development] Theojt:
I was thinking about this - your battery results probably don't mean anything (no offense). I believe that the mV readings you have are simply the voltage of the battery at the time you measured it - this would not translate into "battery used" unless you tied it to a specific period of time.

If you tested the modems in this order: KP1, JK4, then JL3, then you would see the battery output slowly degrade over the time that you conducted your tests (and your chart bears this out). If you actually tested in the order posted, KP1, JL3, then JK4, I am at a loss to explain.

Thanks for the data though. I understand it was an unscientific test and it's got me thinking about modems and battery life. Perhaps charging to 100% and then doing x calls and x data downloads for 5 or 10 minutes would indicate a crude usage level of battery?
[Captivate Android Development] Theojt:
I experienced pretty unacceptable battery use on my 1006 build Captivate. I did notice a HUGE improvement after implementing the Battery Tweaks under SM kernel and changing the WiFi Sleep Policy to "Never when plugged in".
[Captivate Android Development] agaruba:
I have all tweaks enabled and that same wifi sleep policy yet I can only barely squeeze 8 hours on lowest brightness, and with moderate use (emails, couple websites, few phone calls, no gamesand screen barley on for an hour.)I've done all battery tricks so I'm at a loss for words here.
[Captivate Android Development] UGotMe:
Hi! I'm currently using Serendipity 5.0 and since my connection became Edge. Serendipity uses K4 modem. I also tried JI6, KP1, JL2. Any suggestions on what can be the problem? I reflashed 3 times without success. On other ROM I have 3G. Thanks!
[Captivate Android Development] sicmadek:
i know someone with the same problem. no matter if its stock or rom'd, his phone dies quick. it could just be a bad battery.
[Captivate Android Development] JGGW:
wifi does not actually sleep with screen off more often than not. Turn wifi off and see if that helps.
[Captivate Android Development] sicmadek:
It happens even when widow is off
[Captivate Android Development] sremick:
Is the file attached to this post in CWM-flashable form? I know it's a zip but you can't just go by that...
[Captivate Android Development] JGGW:
I was saying, pull down the drop menu and disable wifi. I was saying earlier that even with the screen off there is a known issue with wifi not sleeping...so disable it.
[Captivate Android Development] crossover37:
which modem for northern california?

Which modem do you guys think is the most reliable and fastest for northern california captivate users running serendipity 5.0? I'm running JL3 and it's spotty.
[Captivate Android Development] sicmadek:
when he disables wifi completely it still drains
[Captivate Android Development] lrs421:
Loving jk3 right now in NYC. Tried them all, jk4, jl2, jl3 and KP1. Keeping my fingers crossed, think I've found a winner!
[Captivate Android Development] kamots:
Oh how I miss northern CA! Wish I could move back

Have you tried knp1 its a battery sipper and service is good...in GA atleast lol. Go to Bodega Bay for me please lol :p
[Captivate Android Development] kable41:
So i have a question for anyone that lives in the west texas area or even close. I have been trying the different roms to see which are the best for me and my area. Is anyone from around here or close(like even dallas 6hrs away) that has found in their opinion the best modem? ive tried jk4, tjl3, and kp1 but i havent been able to tell much of a difference other than the 850 hsupa enabled by default and the gps lock time....
[Captivate Android Development] jjbarisax:
Hi, When your done with Bodega Bay, go to the harbor in Half Moon Bay (my old home). I now live in portland oregon in the hills, where service is spotty - I have found JK4 to work best for me in 1 or 2 bar areas. I have tried JL2, JK3, nkp1 and ji6. I found that calling and GPS lock are more reliable with a slight power consumption trade off.
[Captivate Android Development] js8:
US Captivate in Australia

A buddy took his rooted AT&T Captivate to Australia, stuck in a telstra sim. He's having all sorts of problems with his incoming/outgoing calls.

I'm going to help him build a ROM with new modem/CSC. Any suggestions here regarding best modem/CSC combo for an AT&T i897 in OZ?
[Captivate Android Development] MexicanAmerican:
Quick question. How do you judge a modem's battery life? Is it a combination of Voice Call battery usage and Cell Standby? Or are there other menus/stats you're checking to judge the modem's effect on the phone's battery?

Thanks in advance.
[Captivate Android Development] Agreken:
This came up in one of the ROM threads, but I figured I'd post in this one since, I think at least, it appears to be a possible modem issue?

I have to use an M-Cell at home (leave it to ATT to figure out how to offload their overloaded network onto someone else's). With the latest batches of ROMs coming out, I noticed that my Captivate "looses" connection to the M-Cell, usually over night when I'm at home for the whole day. The only way I've found to get it to connect again is to restart with a battery pull. I've tried several ROMs and kernels, including Paragon, Perception, Axura, Pheonix and FireFly with ESPyel, Firebird, Firebird2 and SpeedMod kernels. I don't remember having issues with Perception 7/8 or Axura, but any up-to-date packs seem to have the issue.

Anyone else seeing this issue or have any thoughts on where to go next? It's not the M-Cell because I have (4) iCraps that stay connected just fine. I questioned my device, but then had another user post the same problem with his.
[Captivate Android Development] mattsternc:
I've also got an M-Cell at the house and I'm on my first ROM (Cognition 3.04). I've not seen this particular issue, but I have seen some disconnects from the M-Cell. If I go look at it, it's almost as if it has rebooted for some reason (update?). My phone doesn't have a problem connecting back to that afterwards. It's happened 3 or 4 times since I've had this ROM (2 weeks back I installed it).

One odd thing I have noticed is that when I am away from home, my battery does not drain very quickly at all. Everything works great. But when I get home, the battery drains pretty quickly (2 to 3% per hour or slightly more and almost no usage) when I'm connected to the M-Cell. If I turn off 3G and go to wireless, that helps some.

Anyone have any ideas what's going on here? It's a bit annoying, as I am paying for good signal strength, but should my battery be draining that quickly? :confused:
[Captivate Android Development] DaUnderSheriff:
HSPA+ clarification

So just to be clear, as my head is spinning as well from diving in to this for the last few days - the Samsung Captivate will not support Rev. 7, as it doesn't have a compatible chip set? It seems that it supports all of the bands that the HSPA+ Infuse will support. I'm just trying to get to the bottom of this, as I love my Captivate, but don't see a point in "upgrading" to a non-LTE capable phone, if there is a chance that a modem revision will come out that will enable HSPA+ support on the Captivate.

I have the KP1 modem running at the moment (on Perception 10.3 with the Firebird Kernel), and it's stable in my area with a nominal uptick in battery consumption. These however are not HSPA+ throughput numbers, and I'm wondering what else I can do to get more data throughput through the existing hardware. Thanks for any clarification / information.
[Captivate Android Development] jaxf250:
Correct. From my research, REV 6 is all we will get out of our Captivates. The Infuse will support REV 7 with near certainty based on what AT&T is touting, but REV 8 support in the Infuse is not clear at all.
[Captivate Android Development] Tweak4fun:
OK. I did a little testing yesterday with several modems. I'm running Phoenix 4.5. I have no idea why my upload speeds are so low across the board. The upload portion of Speed Test actually stalls out for some reason. This just started happening at the beginning of Feb. Last month I was getting upwards of 1900 up. I'm in the Olathe Kansas area.

KP1 Modem, Ping 276, D/L 2620, U/L 1324

EDIT: I think something is wrong with the speedTest.net app. I used wifi and the upload stalled out and it read 68k.... my laptop & Desktop is showing 8meg up & down. Hmmmmm.

EDIT2: OK...the problem was the Server selected in the SpeedTest.net app. It defaults to the closest server to you. My default SUCKS. I tried another server and the uploads were normal. I deleted the results from the other modems since the data was suspect. I won't test anymore this month since I'm on the 200MB data plan & I already chewed up 1/3 of the months data....and it's only the second day..GRRRR!
[Captivate Android Development] Johnston212:
Need a bit of input/advice here. I recently switched over to JK4 since it appears to be the only modem that will get signal anywhere near my mom's house. It so far is the BEST modem I have found. I actually got a 6 sat lock in my bedroom doorway and some of the best speednet test results since stock. However, about a few days later, I started noticing increased battery drain. I'm trying to figure out what it is. I don't use wifi, have all syncs set over 4 hours, min brightness, etc. I'm running SpeedMod K12T (while KI2U is in testing), so I'm not sure which is the culprit. I have reflashed the kernel and was trying out kp1, but quickly changed it back as it had even fewer bars than JK4.

What do you suggest might fix the battery life?
[Captivate Android Development] s44:
Has he tried turning off 1900 (and 2100, if he's on Next G)?
[Captivate Android Development] Tintillo:
Does anyone have UCJK1?

Att website under tutorial shows how to upgrade the phone (http://www.wireless.att.com/support...ting+Started&tutorialId=825930&deviceId=12000) at the bottom is a link to a related topic that takes you to the steps to find out which software you are running. It shows aa cappy running 2.2 with a modem i897UCJK1. Could not find it under this thread. Suggestions?
[Captivate Android Development] movielover76:
AT&T lists HSUPA

What I find interesting from that link is that if you look at the specifications AT&T lists HSUPA

http://www.wireless.att.com/support...ting+Started&tutorialId=825620&deviceId=12000

Even though they disable it in their modem, who knows maybe now that their iphone exclusivity is over they will enable if when they release froyo

Not that I'm holding my breath for that. Most likely HSUPA is just a misprint :)

But it would be nice to be able to run a modem designed for my own model
[Captivate Android Development] rockosifraldi:
very good reference for all the modems.. thanks for doing this
[Captivate Android Development] jfreilly:
I have tried all the same ROMs as you have and have not experienced any problems with my Microcell or phone connections.
[Captivate Android Development] DrunkenWonton:
sorry, but to flash a new modem and kernal with CWM

do I just download those files, and change it to updates.zip like how i would install a rom, or is there another way.

not using SGS Kernal that is.
[Captivate Android Development] Pirateghost:
you should never be changing the names of the files to update.zip .. on any ROM/MODEM/KERNEL

flash through CWM, you dont change the name of the file at all.....
[Captivate Android Development] s2h2golf:
I've had the same problem (same area). I use KCMO or Lawrence for my server and sometimes St. Joe. I think they have more bandwidth, especially during peak times (probably because everyone uses OP). Using the JK4 modem, I've been getting 3.5 down and sometimes upwards of 5.5 down during off peak times. The KP1 modem has not worked well for me - I either use JL2 or the JK4 modem. The JL2 modem has better sound quality, but the GPS seems to drop more frequently. JK4 has great download speeds and great GPS, but it can have static at times on the other end.
[Captivate Android Development] DrunkenWonton:
on a rogers captivate, with cognition,

which gives better battery life and and minimum disadvantages.

Firebird or Speedmod,

also, which one is the modem ill need?
[Captivate Android Development] ewingr:
I live in Lawrence and get good speeds there. About the same no matter what modem I use.

Horrible in Topeka.

Was in K.C. last week(well, actually Overland Park) and tested, and it wasn't too good there.

I'm using KP1,and getting real good battery life.
[Captivate Android Development] LlamaLord:
WHat one would be the best?

I live in Mass and right now i am using ucjj4 and i get bad signal what one should i be using?
[Captivate Android Development] Tweak4fun:
I have never seen anything higher that 2.6 meg in this area. I'm on kp1 now, but I may try jk4 again. I would LOVE to see the speeds that you are getting.
[Captivate Android Development] JGGW:
If you are asking about modems you probably havn't read enough or used the search function. try them out to see what works best for you. If you run firebird or speedmod the only modem requirement is that it is a I9000 modem because both of those are I9000 based kernels.

I get the best batt life with hardcore's speedmod.
[Captivate Android Development] s2h2golf:
Here's proof. Like I said though, JK4 seems to have some static, so it isn't the best for call quality. Also note that most of the dates are from Dec/Jan. I don't know why, but I have had a hard time hitting anything above 4mbps lately - mostly around 3.5 to 3.8.
[Captivate Android Development] arabcamel:
I use SuperPower which you go find a link in my signature. Only problem is my phone requires the data to turn off and then back on so there is a 10-30 second lag when you unlock your phone to when the data is available. but does just that and MUCH, MUCH more.
[Captivate Android Development] marcopolo1:
Best Modem for Captivate but non AT&T service

Hey guys, i have Cog 3.04 and using my captivate with a non AT&T simcard .. using (claro in peru).. i can surf the internet however, i cant user the Mobile Aplication.. is there a modem i can use with my captivate running Cog 3.04 and Mobile AP working fine?
[Captivate Android Development] DaUnderSheriff:
Gotta be a way

The frequency bands seem to be the same between the Infuse and the Captivate. Does the chip set in the Captivate not support a REV 7 modem? I can only assume that once a chef gets their hands on the Infuse, or any of the other AT&T 4G Droid devices that they're going to try and make something work for those users who don't want to upgrade to an HSPA+ only device, considering the roll out of backhaul seems slow anyway, and LTE is coming within 6-9 months anyway.

Brass tax, anybody know if the chipset in the Captivate will support REV7?
[Captivate Android Development] ap1618:
whoa, where are you located?! on at&t?
[Captivate Android Development] leo5111:
im on modem that came with paragon rc4, and reception in my apartment building sucks HARD any ideas what modem to try?
[Captivate Android Development] quinters:
re: NYC Modems

lrs421, are you still happy with JK3? I'm having all sorts of issues with my latest ROM, looking for a good modem to see if that helps with reception issues in Brooklyn.
[Captivate Android Development] XeoNoX:
had same problem, try jk3 worked for me
[Captivate Android Development] s2h2golf:
Kansas City metro. On ATT.
[Captivate Android Development] Hondo209:
Anyone living in the valley of Ca.? What's a good modem, right now i have JL2.
[Captivate Android Development] jopet216:
how to flash

Sorry noob question here....Do you flash a modem through clockwork? And what modem is good around the so cal area? Currently have jk4.
[Captivate Android Development] JGGW:
the person that posts the modems usually states if they are CWM flashable or not.