yashsingh1/xdaforums huggingface dataset:
[Captivate Android Development] BenEadir:
Guys,

I flashed Darky's 10.1 Resurrection edition the other day and since then my battery has been draining big time. I'm getting max 6 hours out of a full charge and I know it's not the Android OS issue as that is stable at 6% of battery use.

I've cycled the battery a few times without improving the performance (flashed with 100% charge originally) so I'm now looking towards the modem as a possible source of my battery drain problem.

I'm in Ireland on the Vodafone network and per Darky's advice I have wifi sleep set to 'never'.

My current set up therefore is

Firmware - 2.3.3

Modem - I9000XXJVO

Kernel - 2.6.35.7-I9000XWJVH-CL184813 ficeto@vpn#Dark_Core2.5

Build number - DarkyROM JVH v10.1 RE

Can any of the modem guru's here recommend a modem I should switch to to improve battery life?

Ben
[Captivate Android Development] mloc33:
Alrite man, I just came off of JQ1 and it was`nt great for me, I found JVO o..k, but not good for me.

So far of the modem`s I`ve tried ZSJPG is the best, but even some times it acts like the others.

Weathers it`s just the area I live in, I don`t know..
[Captivate Android Development] $omator:
youre amazing day after release youve got better battery life. well test must have been extensive =)
[Captivate Android Development] tjsooley:
yes so far battery rocks and gps is better for me too I am on cm7.1 kang
[Captivate Android Development] 4-2ndtwin:
Not a guru :), but give the latest JV6 a test run...

And as far as your battery drain, do you have Maps frozen in Titanium Backup ? Because it's been a known issue to run in the background even when you stop it.--just a side thought.
[Captivate Android Development] $omator:
can you provide with some comparison data ?

and thats pure lol =) cell tower from san francisco on hawaii island =)
[Captivate Android Development] tjsooley:
no.

I don't have any apps installed for that.

CM7.1 kang is to beta now. I will post when nightleys resume
[Captivate Android Development] $omator:
you do not even test that on stock - how are your results reliable?
[Captivate Android Development] :
JV6...

After another day of playing with it, the battery has increased dramatically. Call quality is still awesome (loud and clear) and reception is fantastic (I live in a dead zone but JV6 gets me 2 bars).

I found a new keeper.
[Captivate Android Development] JRock80:
How are your speeds on JV6?
[Captivate Android Development] :
Better than JQ1. Im averaging 2.5-3 down and 1-2 up.
[Captivate Android Development] $omator:
ok placebo masters

JVO

​

JV6

​

JV9

aka bujv3​

​
[Captivate Android Development] $omator:
i will add speedtest results in few minutes

EDIT: DONE WAITING FOR COMMENTS =)
[Captivate Android Development] maerlim:
I got no signal quite a lot on JV6 in St. Louis. Went back to JVO, which isn't great here either, but at least I have a signal.
[Captivate Android Development] tjsooley:
I can't wate till the new GB modem comes out for the gt-i9000M
[Captivate Android Development] $omator:
you seems to miss the obvious - policy of us carriers on releasing updates - for their phones is well known as haevly lagged - imho maybe in a year youll get one =)

i mean one released by us carrier - customized or not for us - i would rotfl a week if that would be jvo ;]

but ofc i wish you an update in a week!

any comment on my test results?
[Captivate Android Development] RockRatt:
Quite a few people are not understanding WHICH modem types they need for using with CM7. If you are using CM7 7.1 updated build you need to use the first set of files listed as for 7.1

If you are running CM7 #16 or older builds you need the second set of modem files listed a such. I have tried and used all of these on my phone and should work without any issues. Sorry just copy and paste the links without url's at the beginning and end. I tried to copy and paste them into the xda app. Rather than trying to make each one a URL file seperately with the xda app.

CM7 7.1 Modem file links

7.1 jk4 http://db.tt/5h5k9vc

7.1 jp9 http://db.tt/m0eTrOa

7.1 Jpm http://db.tt/dnRKIpE

7.1 jpx http://db.tt/fAOj8a0

7.1 jv6 http://db.tt/Zp53hPh

7.1 jv3 http://db.tt/367yqru

7.1 jvk http://db.tt/gBzE3ua

7.1 jv0 http://db.tt/no4jYMo

CM7 #16 or older modem file links.

Jk4 http://db.tt/sMoZ8kr

Jl2 http://db.tt/EHTNebD

Jl3 http://db.tt/nniDVDR

Jpg http://db.tt/EVqkJA6

Jq1 http://db.tt/dDVNO2H

Jv3 http://db.tt/AGwbwsj

Jve http://db.tt/rSyWly3

Kp1 http://db.tt/MVsnEsl

Sent from My KickAss Captivated CM7 OC'd 1.55Ghz/Undervolted
[Captivate Android Development] zuN!:
Out of JK4, KC1, and JV6 - JK4 had a better overall download and upload speed. I've been told that it sounds as if I'm in a noisy area on JV6.
[Captivate Android Development] cotr:
JV6 on CM7.1 is showing GREAT battery life and GPS.

no issues with voice quality.
[Captivate Android Development] eliminat:
What I've found with JV6, is that not only does it have great 3G/H, but for me it has the best 2G/EDGE support of ANY of the modems I've tried so far. The other modems I've tried seem to have trouble switching from 3G to E and Back, or wouldn't switch to E at all. This modem has had no trouble switching to and back, and as a result not only do I have better coverage where I work (which is spotty across 3 buildings), but as it doesn't spend nearly as much time looking for signal the battery so far is incredible. Definitely my new favorite.

DFW, TX AT&T
[Captivate Android Development] F1reEng1neRed:
Been using jv6 for a few days now. Switched from Kc1 which has always been good to me. So far I'm liking it a lot. Great signal and great battery.
[Captivate Android Development] $omator:
got any data to backup your thoughts?
[Captivate Android Development] shoman94:
There isn't to much hard data that can be provided with testing modems. Overall data speed with great signal is a very small part of what the modem provides. Everything else is very opinionated.
[Captivate Android Development] $omator:
-there is battery mA/mV usage while phone is in 'sleep mode'

-there are dBm(RSSI) and ASU for cell signal

-there is dBm(RSSI) and Mbps for wifi signal

-there is SNR for GPS but ive found that modem.bin has no impact on it since froyo

-as for upload/download speeds on data connection

you need a ftp server - best would be academic one, located closest to you as possible - that will allow you to download and upload files (i am using this one ftp://ftp.atman.pl/)

and an applicaton that lets you see live speed stats - that is for example System Panel Lite
[Captivate Android Development] shoman94:
Not sure what you point is..... ya you could show battery usage with cell stand by but everyones phones a configured differently.

dBM is RSSI for gsm only... its RSCP for wcdma.... that moves all the time even with the phone in the same exact spot.

Wifi is controlled by the rom not the modem.

There are to may variables and someone can only speculate on what is better or not. People need to try them out for themselves and use what works best for them.
[Captivate Android Development] ccdoggy:
I think we all understand what you are trying to get at but the problem is that almost all of the people trying out modems dont have the time or the know how to do the rigorous testing you are trying to push out of everyone.

I changed to Jv6 and for me its about the same battery as jk4, does not hold onto 850 as much, and has much improved GPS locking speed and holds accuracy better. how do I know this? I spent the weekend in middle of no where WI using my GPS to go everywhere on JK4, then this week i changed to JV6 and also used the GPS. JV6 just seemed to have my location closer to where I am and attained a close initial lock sooner.

Sorry I cannot spend hours testing different modems and combinations and provide you with that information. Though really none of it would mean too much as its all dependent on my location and what I have running on my phone.

all the responses are just trying to give a relative feel of the modem and to do so they dont have to be scientific tests. as its been said over and over it all depends on your location, just try modems and see what happens.

I do enjoy those that put in the effort to test out 10 different modems and give raw data on them, really appreciated. Though it still all depends on location.
[Captivate Android Development] shoman94:
gb modem

ZSJV5 is Asia Market

REQUIRES MODEM DANCE
[Captivate Android Development] shoman94:
GB modem

ZWJV4 - Asia Market

REQUIRES MODEM DANCE
[Captivate Android Development] shoman94:
GB Modem

Nejv5

requires modem dance
[Captivate Android Development] zuN!:
any 850MHz by default on any of those?
[Captivate Android Development] :
Damn Shoman, 3 new modems? What are your thoughts on JV1 so far?
[Captivate Android Development] mrhaley30705:
Are they 850 by default, or do I need my dancing shoes? Also, have you tried any of them yet?
[Captivate Android Development] shoman94:
I haven't had a chance to flash them....

EDIT: Looks like done of them are 850 by default.
[Captivate Android Development] mrhaley30705:
Thanks, yet again. And your wifes right, you really should think about that donate button.

I was wondering, how do you find these modems? You have samfirmware set as ahomescreen?lol
[Captivate Android Development] jaxf250:
SRJV1 took about 5-6 minutes before it would go off of Emergency calls only to "ATT" (they left the & out - weird). Anyway, could never get any GPRS better than "G" to connect. Did not try voice. I am in N. Florida. Next I tried ZSJV5 - got ATT network recognized, no data would connect at all but still showed "G", and tried one outbound call and it sounded very good.

Not a detailed test, but just wanted to keep ya'll posted....

May be back to JV6 for me...

btw, running latest Kang CM7.1..... fwiw.....
[Captivate Android Development] $omator:
-one can tall if the phone on standby is using 2 or 5 mA avarage for example

-are you saying that umts signal quality is not in dBm? please =)) well either of those is quite stable for me

-wifi is controled by the modem i can see the difference in signal strength (dBm) betwen jve and jvo

as you said ther eare so many variables as place that they are atm, are they moving, what is the weather, is there any 'noise' in the air - you are not talking about a test but a russian rullete mate

i am just saying that that is not testing modem but flashing one and waiting for miracle =)

you can not test two modems in different places, bah even time betwen tests should not varry to much

well ofc after a week and without clearing gps data you could have a slight better and faster fix.

thats a bit borring and should be repeated for all after adding every new one so it is useless

only thing you can do is to check the info on one modem then reflash and check it again

everything else is pure speculation as you can not be sure that youve recreate two simmilar circumstances for test

it does not depend on location but how much modem is customized for country for witch it was released

then in same location you can get better stable signal for streaming on one modem and choppy and unstable on the other

thaats all for me - good luck on your quests =)

op - great modem collection
[Captivate Android Development] shoman94:
I just flashed them all real quick.... All require the dance.
[Captivate Android Development] shoman94:
I already agreed that you could do that. But like I said... many different configurations.

No... I'm saying dBM are read as RSSI in GSM and RSCP in WCDMA
[Captivate Android Development] $omator:
this it modem from india gb release

this modem is from new zeland rollout not american

-if one person will be doing testing that will be same configuration mate

-irrelevant as both are in dBm

-so flash both and look at signal strenght and speed on bots ~10 dBm difference and jve almost everytime locks on 54 while jvo lower

i am not arguing just pointing incorrectnesses =) but got preety bored now
[Captivate Android Development] shoman94:
ZSJV5

It is listed in the ASIA market on Samfirmware....

SRJV1

It is listed as America / Australia on Samfirmware....

Thanks for clarifying.....

Yes for that person.... Whats good for ONE person is not good for another....

I always get WIFI locks at 58mbps no matter what modem I flash

and you're arguing.... if you're bored... move on.
[Captivate Android Development] $omator:
ZD is china and hong Kong - so probably honkong as one of pushes was for honkong and none for china

SRJV1 is from I9000XWJVH_VNZJV1_SRJV1 and VNZ means new zeland =)

goodnite and goodluck
[Captivate Android Development] Sqb:
Sorry san fran was the server. West coast is the closest I can get before 7:30 hawaii time.

Sent from a rock on fire in the middle of the sea
[Captivate Android Development] $omator:
;d yes ive figured that out but was loling like madman

that way you would need one cell tower for usa =)
[Captivate Android Development] deathgod1989:
hi guys, i know modems depends on a lot of stuff but what modem do you recommend if i am not using the 850 frequency? sorry iam using my phone in a different country. thanks :)
[Captivate Android Development] deathgod1989:
can i install this in my captivate using firefly rom? can i install pretty much all i9000 based modems? thanks. iam still trying to find the best modem for my carrier thanks :)
[Captivate Android Development] Sqb:
So long as you match bases with kernel. Best bet is to load a bunch and try them. shoman might be able to help out as far as what bands your looking for. This time of night is pretty quiet here. Sorry I can't help too much. Most modems do 1900 band though. It's the 850 that requires the extra steps with a bunch of these.

Sent from a rock on fire in the middle of the sea
[Captivate Android Development] deathgod1989:
thanks :) iam testing jv6 right now, iam looking for a modem that gives the best signal for 900, 1800 and 2100 because my carrier only supports those 3 bands.

thanks :)
[Captivate Android Development] alexige:
You might want to try the new ones shoman just put up, I don't know what frequency they handle but it might be worth it to try the new stuff.
[Captivate Android Development] ap89b:
JV6

I've noticed this as well with JV6. Data speeds are great, but drops signal very easily, 850 band at least. In St. Louis my best bet has been jq1 so far. Seems to pick up an 850 signal better than others, and data is almost up to par with JV6.
[Captivate Android Development] 0mfgroflmao:
Anyone have a link for the SRJV1 modem? (CMW3) I live in New Zealand and would like to give it a try.
[Captivate Android Development] .:Crack:.:
Did anybody try the JXJP6 Modem from the new JPJV6 FW?
[Captivate Android Development] alexige:
I think its in this thread search this thread for it. I'm pretty sure its in here in the last couple pages.
[Captivate Android Development] 0mfgroflmao:
I've looked all over, I can only find ZSJV5, ZWJV4 and Nejv5 in the last few pages. No link for SRJV1?
[Captivate Android Development] bigblue95z:
Glad to see some 'Locals' (from Springfield, IL) having the same issues I did with JV6. It's what came with Serendipity 7 and it's been picking up more T-Mobile towers than ATT. But, I'm out a ways from the city.
[Captivate Android Development] r.iqbal87:
Yes, I did. In my area, Southern California, TUBJV6, is much better. I think its JXJV6 not JXJP6, but i may have not looked at the one letter correctly when checking "About Phone". I dunno tho.
[Captivate Android Development] r.iqbal87:
Here are some new modems i pulled from samfirmware. I attached both cm3 and CM7.1 CWM flashable versions. Enjoy.
[Captivate Android Development] r.iqbal87:
And some more...
[Captivate Android Development] r.iqbal87:
it doesn't stop there...
[Captivate Android Development] r.iqbal87:
My bad, jv1 should be named SRJV1 not whatever I put in the zip's name.

Sent from my phone.
[Captivate Android Development] shoman94:
SRJV1 does not work with 850mhz.... that's why I took the link down.
[Captivate Android Development] r.iqbal87:
Oh someone asked, so I posted it. But it wont work even with the dance?

Sent from my Nexus S
[Captivate Android Development] shoman94:
Correct... even with the modem dance..... BUJV3 is the same way.
[Captivate Android Development] 0mfgroflmao:
My provider doesn't use 850 so it doesn't matter to me :)
[Captivate Android Development] reinbeau:
Boston area

Can anyone suggest what they consider the best modem for the Boston area on AT&T? I'm now on Mikey's GB Serendipity VII and the signal strength is really poor on the provided modem. Signal was great on Serendipity 6.4, I forget which modem that was, and I guess that one won't necessarily be the same on GB.
[Captivate Android Development] shoman94:
TUBJV6 is a great modem for the Boston area. Sorry your having issues....try reflashing it.
[Captivate Android Development] eliminat:
The Serendipity VII kernel wasn't letting me connect with any modem at 850 Mhz (even though it was enabled, it would never find the signal), so you may want to check that your phone is actually connecting to 850, that may be your problem.

To fix it, I had to flash a different kernel, not modem ( I chose TalonDev 0.2.1).
[Captivate Android Development] smully1:
I'm on jk4 modem and it connects to 850 no problem so it is not s7 or kernel related. I'm not in Boston so it may not be right there. Just want you to know it is not ron or kernel causing problem.
[Captivate Android Development] nakedninja42:
I agree, its not the kernel or S7, I switched to KC1 because JV6 was giving me issues in San Jose. It had no signals issues but I found my self repeating what I said to the caller a lot so I switched back to KC1 and haven't had a problem since.
[Captivate Android Development] phzi:
Moving from JL2 or JK4 to JV6, battery life has definitely decreased drastically. Consumption during idle uses 25-50% more battery at idle. This is after about a week of testing.

i9000m on Rogers Network. Almost always have 4 bars signal.
[Captivate Android Development] reinbeau:
Well, my issues are worse than I thought, I can't receive calls. It rings half a ring and then cuts off - calls go to voice mail. So, I should try JV6? Is there a 'dance' or can I just flash it?

Just for yucks, anyone know which modem was in Serendipity 6.4?
[Captivate Android Development] Sqb:
I would do the dance starting from a jk4 modem. Better safe than sorry

Sent from a rock on fire in the middle of the sea
[Captivate Android Development] reinbeau:
Actually, it turns out Serendipity VII comes with I9000TUBJV6. That's the one that's not working well for me. So can I just flash JK4 or is there a dance?
[Captivate Android Development] ccdoggy:
Just flash it. both jk4 and jv6 have 850enabled by default.
[Captivate Android Development] H3llstorm:
JVO is giving me the best cell/GPS reception on Serendipity VII around the RI/MA border.

I didn't even "do the dance". Well, not exactly...

After flashing Serendipity VII, I switched to WCDMA 850 only, flashed JVO, switched back to auto & added 850 in the combi bands screen.
[Captivate Android Development] cbasse:
i read through this whole thread, and I don't think i've seen a "laymen's version" of why one might want to switch to "850 only" versus 1900 (or "automatic" which seems to tend to go to the 1900 band). Or, maybe i should put it another way -- all things being equal, is it in my best interest to switch to 850 only?

If the above is true, is it then accurate to say that, before flashing a new modem, making the change to "850 only" might be an effective action to take before looking at new modems?

as always, thanks for any help/thoughts/comments you can offer!
[Captivate Android Development] shoman94:
Some areas are 1900 only... and sometimes 1900 works better... mainly cities with tall buildings. I don't know about battery life but I've been told by some network engineers that better performance is achieved by leaving it in automatic.
[Captivate Android Development] eliminat:
It's in your best interest to have all modes your provider supports enabled. The emphasis on 850 is because most carriers have 850 in more areas than any other band, including areas that don't have signal on any other band. So if your modem doesn't have 850, there can be many places where you would have no signal or bad signal.
[Captivate Android Development] cesierra:
I know how to select 850 only on a Samsung ROM, but how to do it on CM7?
[Captivate Android Development] zuN!:
On CM7, you can't. That's why it's best to stick with 850MHz default modems
[Captivate Android Development] Ziostilon:
i came from the stock Bell KC1

Then went to Darky's JVH

now i applied your KC1 modem.

it this modem suppose to be like the one i originally had, because the phone kept disconnecting from the network earlier

and it feels like it takes longer to get the dial tone and connect with my provider

note, it is just my plain feel. no factual evidence to back it up
[Captivate Android Development] smully1:
I have to travel to Toronto today. What modem works best in Toronto?
[Captivate Android Development] RockRatt:
Nevermind. Accidental post.
[Captivate Android Development] woowpsico:
just for the record im using modem_cwm3_xxjvo and works excelent (the best for me) in Mexico :D
[Captivate Android Development] jhnstn00:
Anyone having issues with at&t download and upload speeds. Using jk4 and getting 40kbps each way. Tried kc1 but same thing.
[Captivate Android Development] 4-2ndtwin:
No problems here in central Arkansas.

Mosaic III Diet

reorient_G #13

TUBJV6
[Captivate Android Development] Exostenza:
Looking forward to jv5 being added to the list. I have heard good things.
[Captivate Android Development] phlunkie:
http://xdaforums.com/showpost.php?p=14339136&postcount=1891

Can this be linked in the first post?
[Captivate Android Development] electroau:
Jv6 has more tx gain on the bluetooth settings causing my blueant to over modulate. I had to go back to jk4
[Captivate Android Development] shoman94:
I didn't see that issue.
[Captivate Android Development] steelcity:
can anybody recommend a modem for the Baltimore, MD area?

Im running Serendipty 7
[Captivate Android Development] baghera1979:
I'm in the Philly area...not far from you and I switch between kc1 and tubjv9. Kc1 works good indoors and jv9 for when I'm outside for the day
[Captivate Android Development] kobik77:
From my experience with jv6 it pretty sucks indoors.

Think I'll switch to something else.

Are you saying that you actually switch modems according to your current location? :O
[Captivate Android Development] RockRatt:
For me it has been just about the same indoors as jk4 and outside my phone shows more bars but still works about the same as jk4 (JK4 seems to be one of the best for me in my area so it is my go to modem).

Sent from My KickAss Captivated CM7 OC'd 1.5Ghz/Undervolted
[Captivate Android Development] jott0204:
@ steelcity

I'm running jk4 right now in the Baltimore area and I have lost connection to AT$T numerous times over the past few days. Please let me know if you find one that is worthy!

EDIT: Running Paragon RC6
[Captivate Android Development] reinbeau:
I've just switched back to JK4, that seems to be the best for me here in the South Shore area south of Boston.

I'm intrigued with what RockRatt posted about keeping and switching modems according to area, I wonder which modem would be best in southwestern Maine? Then downeast in Maine? I'll have to play with it. I did learn that you have to keep the modems on your internal SD card, I couldn't see them in the folder on the external SD - or does it have to be in the root of that card to be able to see them?
[Captivate Android Development] emuneee:
Just have them somewhere on the internal SD. For some reason, the external SD isn't mounted when you are in recovery.
[Captivate Android Development] baghera1979:
I'm sorry... I meant jv6... but yes I do switch them. Right now I'm on jv6 and have no problems indoors.... have 3 bars soils a good 85% of the time

EDIT: I meant jv6 indoors and kc1 outdoors. Only switch if I am.going to be outdoors for.long periods of time
[Captivate Android Development] .:Crack:.:
Newest Gingerbread Modem of XXJVP Android 2.3.4