yashsingh1/xdaforums huggingface dataset:
[Captivate Android Development] thatguysteve:
Testing xxjve right now on Telus near Toronto, Ontario. 850 works well and preliminary results indicate performance is around the same or a little better than kp1 in this area. Kp1 was my personal favourite for this area before. Will report more after a few days of testing. Testing on Paragon RC6

Thanks for posting this. And I appreciate the work you did to get rid of the blue text.
[Captivate Android Development] s2h2golf:
JVE only gives me Edge data. Kansas City area. Caused a FC on system on first boot. Testing the other one now.

Edit - JS1 gives me no service at all. No APN configured. Rebooting to see if that resolves anything.

Edit 2 - reboot and no go on service. I don't have time to manually configure the settings to see if that changes anything.

Edit 3 - re-tried JVE again after seeing others having success with it. Rebooted and let it sit for a while. Seemed to work fine for a little while and then reverted back to Edge. All bands were enabled when I checked.
[Captivate Android Development] Chillyw:
Typically get 1-2 bars in this building, jve is giving me 3-4 consistently. So far, so good.
[Captivate Android Development] thatguysteve:
One quick note. If band selection is left on automatic for jve, 850 is not used by default on the list and must be added in combi bands menu.
[Captivate Android Development] geokilla:
Isn't JVE a 2010 modem? I was under the impression that 2010 = J and 2011 = K.
[Captivate Android Development] Barbarian:
I like JVE...:D
[Captivate Android Development] toneflem:
This speed test with wifi is pretty cool...sigh
[Captivate Android Development] harpo1:
X that's your wifi test correct?
[Captivate Android Development] eliminat:
JVE only gives me 850 GSM, can't enable 850 WCDMA (FDD V). Download speeds so far are very good, with slightly worse upload (could be related to having to use 1900 Band for WCDMA).
[Captivate Android Development] Ikonomi:
Running JVE for the moment as well. After enabling 850 WCDMA in combination bands, it remains checked until I toggle airplane mode or reboot. Preliminary tests show that signal is slightly stronger and data speeds on 1900 are slightly faster compared to KP1, but that might just be network fluctuations. I'm unable to test 850 at the moment (more on that below).

This may be the modem I've been looking for. I need a modem with a strong preference for 1900 due to network congestion near my office on the 850 band. 850 on some days is pretty much unusable for HSPA, with extreme latency and single-digit kbps transfer speeds. If JVE will actually hand off properly in 850-only areas, it may be perfect for me.
[Captivate Android Development] cmd512:
Nope, this is the newest modem from the I9000 Gingerbread (2.3) beta ROM that was leaked from Samsung.

And, LOL @ the dude running WIFI speedtests... for shame!
[Captivate Android Development] Ikonomi:
Hmm, 850 speeds at home are pretty poor, around half of what I'm getting right now on KP1 up and down, with high latency. Very strange. I guess I'll test JVE vs KP1 on 1900, since the new modem seems to be a beast on that frequency.
[Captivate Android Development] Nucleartx:
Couldn't get JVE to even go over to 850. Great speeds on 1900 but in Texas, ATT owns ALOT of 850/1900 spectrum. Would create dead spots between towers on ones that are spaced for cellular........ :(
[Captivate Android Development] davioxx:
Telcel i9000T 850 Modem JP1

Sup guys here is a new modem for i9000T users its for mexico city with 850 Band

JP1

http://www.megaupload.com/?d=N502LGPX
[Captivate Android Development] Swishaa:
Nvm this post
[Captivate Android Development] devz3r0:
Appears to be an old modem.

Timestamp: 2010-Nov-2 20:28:32

If you want me to add the CWM version to the OP let me know.
[Captivate Android Development] Ikonomi:
I'm in Houston, and yeah, I've had trouble with dead spots when I forget to enable 850 when I leave the office. JVE seems to hand off properly to 850 cells, but the performance, at least with data, is wonky. I wouldn't trust it out in the wild for voice calls.

So on this note I've been getting very odd behavior from JVE regarding the 850 band. Initially, 850 would not stay selected in the ServiceMode menu (*#2263#) after toggling airplane mode or rebooting. Well, after the first couple times, it stayed selected, and in fact the phone will periodically switch to 850 for the stronger signal. This is no good for me because 850 is oversaturated in a two or three block radius. I get three bars on 1900, and four on 850, but data over EDGE/3G/HSPA is unusable.

Anyway, what's really strange now is that I disabled all bands except for 1900 WCDMA. My phone powered off due to low battery, and when I booted it up, it connected to 850. I double checked ServiceMode, and ONLY 1900 WCDMA is selected. I switched to automatic bands, which now does not show 850 selected, and yet the phone is still connected to 850. Toggled airplane mode, 850 again. Very weird.

JVE seems to have some really strange behavior with the Captivate, and I don't think I can recommend it. Data speeds are excellent over 1900, but 850 for me seems barely functional -- very slow and laggy -- even in an area with excellent 850 coverage. It's also strange that the modem works on 850 for me, while so many others can't get it to connect at all. This could be a result of the two (two and a half?) models of modem chip used in the different hardware revisions of the Captivate. I'm going to continue running it for now if I can get it to switch back to 1900, because it really is good on that band.

Unfortunately I haven't had much of a chance to test voice on this modem over either band, except for calling the Chinese restaurant across the freeway for takeout. And it was delicious.
[Captivate Android Development] eliminat:
After more testing with JVE, where I had 3G before, I seem to have better signal and MUCH better speeds. Where I used to have EDGE on 850, I have worse or no signal (used to have 3 bars, now 0 or 1).

If you have great signal, it seems like a good modem. If you travel through weaker spots, you could have trouble. I would love to see this modem with an improved 850 band.

Has anyone tried the JS1 and had it working?
[Captivate Android Development] tiuk:
I had similar issues with JVE, today I switched to edge because I barely had a 3g signal and afterward could not get it to go back to 3g even after all manner of settings, airplane mode, reboots, etc.

Also had tons of problems with GPS. Ended up flashing back to nkp1 and all is well.
[Captivate Android Development] geokilla:
Roaming message on JVE.... Annoying >.>
[Captivate Android Development] mgfjd:
Modems I9000XXJVE & I9000BUJS1 should be removed from the list. They do have the 850 bands but in a real testing environment the phone will not switch to those bands.

The phone has to be manually force to the 3g 850mhz band.

JK4 modem is still the king.
[Captivate Android Development] rizzo269:
Agreed. Every modem I test takes me back to JK4 in the metro Detroit area. I get good speeds on JL2 but it kills my battery.
[Captivate Android Development] Ikonomi:
What would constitute a "real testing environment"? Like one of those anechoic chambers the hardware developers use? I'm running JVE again today (because of its great 1900 performance), and it's more than happy to switch to 850 if the band is enabled, even in places with equivalent signal strength on both bands (full bars on both 850 and 1900, but I don't know the actual measured signal strength). I've actually had to disable 850 to get it to stay on 1900.

JVE does have rather unpredictable performance depending on the Captivate, though, so it's a major YMMV modem.
[Captivate Android Development] r.iqbal87:
Are you kidding? I completely disagree, I've been running jve for three days now, and have been very satisfied. In addition, the GPS is improved if you apply plumbobs GPS fix ver. 0.942.
[Captivate Android Development] stevesteveLA:
I agree with your disagreement! :)

I was hesitant to flash this modem because of all the negative comments, but it just goes to show that the old adage of YMMV applies here as well.

The modem works well with my setup of Cog 4.1. 1 and the latest speedmod kernel, here in LA. Good signal strength, data speeds, GPS. Need to do more testing with call quality though.

With the fact that it only takes about 1 minute to flash a modem, there is no reason not to try them out for yourself.
[Captivate Android Development] davioxx:
OP: i guess it is ok to be added to the list, it works so far for me in MEXICO very good so probably optimized for our crowded city who knows.

and also if you can make the CWM package it would be great :D
[Captivate Android Development] devz3r0:
Sorry guys, I missed one. I guess better late than never. added ZSJPG to the OP, it has a timestamp of Feb 1st. Probably the latest froyo modem with 850 (since jve is considered gb).

I tried flashing this TUMJP1 you posted and I'm immediately prompted upon boot with: "Enter Network Lock Control Key". What network are you using this on?
[Captivate Android Development] Chillyw:
I flashed ZSJPG and its giving me the fastest data speeds I've ever seen at my house in San Antonio. Usually struggle to break 2.5 Mbps, consistently getting 3.5-4 Mbps download speeds.
[Captivate Android Development] madmack:
ZSJPG, a Honk Kong modem has 850 MHz enabled ?! :confused:

Edit: installed it. Enabled 850 MHz and couldn't get it to lock on a network. Only 1900 MHz works.
[Captivate Android Development] shoman94:
I installed it.... enabled wcdma 850 only and it works fine..... But I din't like that 850mhz is not enabled by default.....

Although GSM850 is enabled by default.....

I will test it out some and see how it plays in a 1900/850 wcdma area.

Right now KP1 is my goto modem.

EDIT: 3.0-3.3 mbps down and 1.0-1.3mbps up on 850mhz

Edit2:Enabled 850 by leaving Automatic enabled... went into combi bands... added wcdma 850.... and it stuck after reboot! Surprised the crap out of me.
[Captivate Android Development] mgfjd:
Because of my job I have to heavely use my phone every day (Highways, cities, towns).. JK4 is not the fastest internet, or gps. However, JK4 can hold calls better in crowded areas, peak times, and switch tower better during phone calls. Drop calls by far, a lot less with JK4. JK4 barely gets 4Mb download while other modems can do 5Mbs or more. JK4 can lock GPS in 10secs while other modems can do it in 5s.

If voice calls are not your primary concern then other modems do a better job than JK4..

I need to try the new modem from Asia though.

Edit: Most of the developers in these forums use JK4 as the primary modem of choice.
[Captivate Android Development] shoman94:
I have many areas that have that are troubled areas as far as lower signals. My area can be very rural and JK4 is just not strong enough. JL2 and KP1 are better overall modems IMO with KP1 getting the knod for better battery life.

I am now gonna try this JPG modem..... its gonna take a few days to get a good read.... I need to test it at work especially as the buildings I'm in can play havoc on signal.
[Captivate Android Development] mgfjd:
EDIT: KP1 is a great modem but the problem I had was: when on the phone moving from a 3g area to a 2g area the conversation would become garble for the listener. I have to hang up and call again. Don't know why it only happened with KP1.. Signal strength is great with KP1
[Captivate Android Development] Chillyw:
1900 MHz here exists but isn't as strong, and it locked onto 850 H immediately for me and hasn't let go. I haven't had to change band selection or anything for it to happen.
[Captivate Android Development] shoman94:
Weird.... after I loaded it... I went in and looked.... wcdma850 was the only one not enabled... weird.....

So far I am liking it... sound is really nice.... holds 850mhz very nice. Tuesday I'll be back at work where I can really put it through its paces....
[Captivate Android Development] Tweak4fun:
Tried ZSJPG here in Olathe Kansas (Kansas City suburb), I got the fastest UL/ DL speeds I have ever received! WOW! I was using JK4.
[Captivate Android Development] Ikonomi:
Trying JPG right now at home in Houston. The modem prefers 1900 and posts speeds comparable to JVE. What makes JPG great is that the 850 band is fully functional, unlike JVE on my phone. In fact, 850 was enabled by default on auto bands, which seems contrary to what others are reporting. I selected another WCDMA band and went back to auto, however, and found 850 disabled and 900 in its place. Maybe service mode retained the bands from KP1. No clue.

The upshot is that JPG shows speeds comparable to JVE on 1900 and only slightly slower than KP1 on 850. As always network utilization may be affecting my results. For data, so far, JPG is looking phenomenal.
[Captivate Android Development] perosredo:
Flashing to JVE has doubled my speedtest benchmarks.

On a side note, all of the zips from the first page being named update.zip is a major headache when using the phone. But--much thanks regardless.
[Captivate Android Development] Frank the Funkasaurus Rex:
+1...

A small request but separating the modem names with dashes or under scores would make it much easier to download on the phone.

Thanks for the awesome thread.
[Captivate Android Development] devz3r0:
My apologies, I didn't even realize that was happening. None of them are named "update.zip", but I see what you mean when you try to download it from your phone it gets renamed for whatever reason. I have always downloaded the modem on my pc then transferred to the phone, so that's why I never saw it.

I'll see if there is something I can put in the .htaccess so it doesn't happen anymore. If not I will add the underscores.
[Captivate Android Development] devz3r0:
Fixed links, let me know of any other issues.
[Captivate Android Development] shoman94:
I'm testing JPG and JVE.... I'll swap them back and forth at work where signal testing is prime.
[Captivate Android Development] perosredo:
JVE would often push me into a previously-unknown data mode 'G'--apparently it's for GPRS and likes eating battery. I've never encountered it before on stock, KP1, JK4 or JPG.
[Captivate Android Development] shoman94:
Doesn't make sense.... G is EDGE minus the software update. Easy on the battery..... Maybe you could reflash it? I haven't seen that with JVE....
[Captivate Android Development] Nucleartx:
Back to JK4..... JPG wouldn't go over to 850 for me even though it was selected.
[Captivate Android Development] shoman94:
Probably your signal was good in 1900? Like every other modem..... 1900 is preferred.
[Captivate Android Development] Nucleartx:
Was in a couple very weak 1900 areas and wouldn't switch over. Flashed jk4 at that spot and went directly to strong 850.
[Captivate Android Development] shoman94:
Interesting.... i can cup my hands with my phone bringing the signal down to about -105db and it switches over... with JVE it holds 1900 strongers..... i have a harder time bringing the signal to -105db tomorrow will be interesting.....

side note: today was in an office... on JPG, signal was -113db.... no bars... and it still connected clear!.... i was blown away
[Captivate Android Development] jayjr1105:
After reading the OP and about 7 random pages I decided to try JL2 running paragon RC6. Not getting the best results at the moment but Ill keep trying til' maybe tommorow. I switched it to 850 and my network speeds were better with JK4. My phone also seems to default to 1900 most of the time but will jump over to 850 on its own once in a while also. Anyone have any luck with a certain paragon/modem combo? I have yet to test out voice or gps with JL2. Will try and post.
[Captivate Android Development] zuNcHAN:
How are you guys getting WCDMA 850 with JPG...it's not even an option for me.
[Captivate Android Development] Chillyw:
That's really weird, idk what to say. I flashed it and it picked up WCDMA 850 without me doing anything. I've been connected to HSDPA over 850 band 5 all day long.
[Captivate Android Development] shoman94:
Weird... I had to enable it but it stays on after reboot.

In a parking garage at work...850 on jve and signal is 104-106db and xda kept timing out on me 60% of the time. Switched to jpg and haver the same 850 signal and xda only times out 5% of the time.... Much better in poor signal on 850. JPG looks promising.

Sent from a Captivate running Continuum/SuckerPunch#55/JPG on xda app.
[Captivate Android Development] madmack:
for those who can't get 850 3g working on JPG. are you using the captivate or the i9000m ?
[Captivate Android Development] tietherope:
I just threw JPG on and I got 5.91Mbps download and 3.24Mbps upload. Not the fastest I've achieved, but still very impressive.
[Captivate Android Development] jayjr1105:
I have yet to see anything higher than 3 down and 1.5 up with the few modems I have tried. What are you guys using where you are getting 5+ dl?
[Captivate Android Development] tietherope:
I'm in Canada on Rogers. Around 5Mbps down is the usual for me. From what I recall I don't remember seeing too many people hit that high on AT&T.
[Captivate Android Development] Vivified:
I hit over 5 on att with several modems
[Captivate Android Development] zuNcHAN:
I'm on a i9000 ROM (JS5). On JVE, once in a while my 3G switches to G.
[Captivate Android Development] tietherope:
I'd believe it. I'm just saying I generally see it being reported in the 3-4 range.
[Captivate Android Development] perosredo:
Why is 850 vs 1900 important?
[Captivate Android Development] shoman94:
Not sure I understand what you are asking but....

850 has better building penetration and more distance from the tower due to its longer wave lengths. If a network is built truly for 1900 you should be fine.... now if you add 850 to that 1900 built network.... thats a bonus...but... if you have an 850 built network with 1900 added.... then you need a good modem that changes over to 850 when needed since the modems love camping on 1900 most of the time. IMO 1900 is better on battery life.... so for me... I like the 1900 camping as long as it switches to 850 when a call is initiates.

Hope this helps... if so hit the thanks button!.....loll
[Captivate Android Development] perosredo:
Yea that's what I was asking; thanks.

There was a thread in Q&A in which someone said 850 is better for battery life. I figured it would be good to bring that discussion here.

Today I ran through JVE, JPG, JL2, JK4, and KP1; and only can get 850 on the KP1. However, I had an issue with it previously where it just ate battery like a madman compared to JK4.
[Captivate Android Development] shoman94:
Some testing i did today:

JPG camps more on 1900mhz but will switch to 850 if better once a call is initiates. For example driving the 36 miles to work the phone will normally camp on 1900mhz but will switch when the signal gets down around -105db.... today on the way home I spoke during the whole drive and it stayed on 850 almost the whole distance. It switched a few times with no glitch when switching. Also I was in Walmart today talking on BT and watching the signal in debug mode. I was seeing -113 and -115db in some spots and we could still talk.... JK4 can't even come close to doing that..... the closest i've seen to JPG has been KP1

thanks for listening.... lol
[Captivate Android Development] neptronix:


Same here. Only reason I have switched from kp1.
[Captivate Android Development] hype8912:
I tried the ZSJPG modem and I couldn't get WCDMA850 mode. It would only show G on the screen and when I went in and manually selected WCDMA850 it just went to no-service with the 4 gray bars with an X in the top corner.

I seem to have the best battery life with JK4 but I've had the best speed with KP1.
[Captivate Android Development] shoman94:
I'm curious...what is your location and can you choose 850 the other modems

Sent from a Captivate running Continuum/SuckerPunch#55/JPG on xda app.
[Captivate Android Development] perosredo:
I'm on JVE now and can't send texts for some reason--'Message failed'.

Anyone have an idea as to why?
[Captivate Android Development] mbc663:
Do you have any number under message centre?
[Captivate Android Development] perosredo:
Message centre -> Not set

What's this for? First encounter.

EDIT: Nevermind, thanks. :)
[Captivate Android Development] hoopas:
I haven't found it but, where can I find what mhz(850-1900) my area is in. Located in East Central Alabama.
[Captivate Android Development] Thegodfather156:
Jk4 rips 4.5 down and 1.6 up in Portland Oregon on 1900 band 2. I just switched from 850 5
[Captivate Android Development] jayjr1105:
Yea I went back to jk4 after trying out a few different modems and I pulled 4+ down for the first time today.
[Captivate Android Development] hype8912:
I am in the northwest Florida region. Yes I can select 850 on other modems. I've used JK4, KP1, and JL2. All of those work fine with minor differences.

Sent from my SAMSUNG-SGH-I897
[Captivate Android Development] Ikonomi:
Are you trying to select 850 exclusively from the WCDMA Band menu, or are you using the Combi Band menu? Earlier I found that I am unable to select only 850 from the WCDMA menu (it says "no menu selection" or whatever, something weird like that). If I use the combination band menu, however, I can select 850 alone or in conjunction with other bands and it works fine. The phone hasn't had any problems with reception or handing off to 850 towers.

Perception 10.2 | SpeedMod K13C | I9000ZSJPG
[Captivate Android Development] mcmac7:
JVE modem doesn't work with 850mhz.
[Captivate Android Development] shoman94:
Yes it does... I've used it

Sent from a Captivate running Continuum/SuckerPunch#55/JPG on xda app.
[Captivate Android Development] shoman94:
If you go to gsmworld.com and look at gsm roaming... They have an att map for each frequency.

Sent from a Captivate running Continuum/SuckerPunch#55/JPG on xda app.
[Captivate Android Development] hoopas:
Thanks shoman
[Captivate Android Development] Nucleartx:
You can go to www.wirelessadvisor.com and look up your zip on who has what frequencies also.
[Captivate Android Development] hype8912:
That's what I was talking about when I said I manually selected it. I got the same message when I tried to select 850 only but when I went into the COMBI menu I added 850 to the list since it wasn't selected and that's when I get the 4 gray bars with an X.

I'll try it again today and see what happens.
[Captivate Android Development] shoman94:
Well.... I will say one thing...... I decided to flash another rom today.... and I can tell you.... this ROM will NOT let me use JPG, KP1, JVE with 850. No matter what kernel I flash also.... 1900 only.... I flashed 3 kernels....so I believe that the ROM itself is the deciding factor. Depending on how the Dev changes the ROM it seams to effect the modem. IMO this is really stupid....
[Captivate Android Development] Nucleartx:
I'm running Supernova 2.3 and using JK4 atm. I had to go in and select gsm 850/(Then Combi-bands)1900 then WCDMA 1900 then 850 to for it to switch back and forth effectivly. Used to only sit on 1900 unless there was NO 1900 available. JPG was very good on 1900 but no matter what I selected/rebooted or did it wouldn't switch over to 850.
[Captivate Android Development] shoman94:
And that stuff shouldn't happen.... there has got to be something in the ROM's that are getting changed for it to effect some and not others....
[Captivate Android Development] edgarpoe:
UGJL2 works with gingerbread

Hey i know this is a Captivate forum but it came in handy for my SGS i9000M. Especially when i'm not at home to use Oden. UGJL2 installed on supercurio's hacked gingerbread kernel and runs nice.
[Captivate Android Development] Frank the Funkasaurus Rex:
Just downloaded the jpg modem on my phone and noticed you switched to using underscores. Thank you sir... Much easier to keep track of.