yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Themes and Apps] republicano:
anyone knows the situation with multiupload?

i was hoping to find a back up of

Telecom New Zealand DOKG2 modem
[Galaxy S II Themes and Apps] CamoGeko:
Multiupload is down indefinitely, FBI has screwed us all. :mad:

I'm in the process of re-collecting and re-uploading all the modems, since I didin't have them backed up it will take longer than expected.
[Galaxy S II Themes and Apps] mchu6am4:
Best modem for UK Three network please?
[Galaxy S II Themes and Apps] spelaben:
New LPJ modem: http://bit.ly/A5AwoT
[Galaxy S II Themes and Apps] imatrix:
Hi Guys,

Can I flash this modem using Odin onto the CM9 nightly build?\

Thanks,

EDIT: never mind, just read the post above, I will flash and confirm the result. WORKED
[Galaxy S II Themes and Apps] bclark:
Any one have the LPQ modem? I'm not near wifi so I can't grab the whole firmware to grab the modem
[Galaxy S II Themes and Apps] kxnzxmori:
Grab it

here.
[Galaxy S II Themes and Apps] starbucks2010:
Can someone tell me what is the best modem for Orange Romania?

Thank you.
[Galaxy S II Themes and Apps] CamoGeko:
UHLPE modem.

www.mediafire.com/?zp1xat5bh71qcnx

ODIN package.

Logged using an SGS2 type droid while exploring CheckROM V6 quadrant on a research & rescue operation.......
[Galaxy S II Themes and Apps] maxtorxtremewow:
Can someone gimme the I9100T modem file for Vodafone Australia?

The links are dead :(
[Galaxy S II Themes and Apps] Ok_Kaleidoscope5109:
is that CWM flashable?
[Galaxy S II Themes and Apps] imatrix:
here is http://xdaforums.com/showpost.php?p=20075898&postcount=8

But I would just use Odin to flash just the modem.
[Galaxy S II Themes and Apps] neopheX:
Guys i really need the Telstra Australia DVKF2 modem but multiupload is down

Where can i obtain this modem?
[Galaxy S II Themes and Apps] DotNetRules:
Here is the Telstra Modem, extract and flash with oDin, enjoy :D
[Galaxy S II Themes and Apps] neopheX:
Awesome cheers mate!! Gave u a Thanks
[Galaxy S II Themes and Apps] DotNetRules:
Thanks for the thanks ;)

Yes PDA = Modem

Telstra use the GT-i9100T, so yes its their modem. I don't have an i9100 so I can't say too much about that model. I've heard there has been some success with the i9100 using the Open Australia Firmware (CSC: I9100XSAKK1, unbranded), you can grab that from here http://www.sammobile.com/firmware/?page=3&t=1&o=1&m=GT-I9100&r=4#modelsa

Hope that helps.

---------- Post added at 01:03 PM ---------- Previous post was at 12:54 PM ----------

Forgot to add:

Whatever modem you choose, if you have performance or connectivity issues then naturally confirm your APN settings are correct, BUT in addtion physically change the 'Authentication Type' to either PAP or CHAP and then press SAVE, experiment with both, can't stress this enough.

My SG2 likes CHAP with the AU Open Firmware, but my Galaxy Note n7000 likes PAP, both are on the Telstra Network.

Cheers
[Galaxy S II Themes and Apps] ksr007:
here is I9100M250S modem ( very stable for asia ) :

http://www.mediafire.com/?4bdss12mw68jsb6
[Galaxy S II Themes and Apps] kxnzxmori:
Yes.

10char.

Sent from my S2
[Galaxy S II Themes and Apps] Smartie36:
If flashing just the modem with odin you select PHONE not PDA!
[Galaxy S II Themes and Apps] iron@ss:
Dial pad *#1234#
[Galaxy S II Themes and Apps] nightranger73:
Maybe bcs there's no kf3 modem? There's a kf3 firmware but that's another story

Sent from my GT-I9100

If you find this post usefull please press the "Thanks" button
[Galaxy S II Themes and Apps] juDGEY2k10:
Do i use Odin to install the radio? PDA bit?

Cheers
[Galaxy S II Themes and Apps] pulser_g2:
ODIN with PHONE :)
[Galaxy S II Themes and Apps] juDGEY2k10:
cheers dude
[Galaxy S II Themes and Apps] juDGEY2k10:
Right before i do this, will this sort out any BT probelms im having.

Let me explain, while streaming music to my car stero 99% of the time it drops out and i have to reboot the phone to get the BT to stream again.

so will this modem stop this from happing?

I have flashed my phone to stock rom to debrand it, so wot modem would i use?

Thanks loads and sorry to be a nub.

Cheers
[Galaxy S II Themes and Apps] pulser_g2:
Not a clue if it can fix an obscure bluetooth issue one person has... Trying it is the best option. :)

Maybe it will. Or upgrade to KF2 ROM perhaps?
[Galaxy S II Themes and Apps] trunks986:
Hi guys... what's the best radio for our gs2?? i need the best mix between battery drain and reception
[Galaxy S II Themes and Apps] Pume:
Been answered so many times...You just have to try and flash them by yourself...No one can tell you what's the best one just for you and your area. Unless you have a friend or a relative living right next to you with a SGS2 and a flashing addiction .D
[Galaxy S II Themes and Apps] KornX:
KG1

Flashed KG1 with main KF2 from here...

http://www.villainrom.co.uk/forum/s...inROM-2.0-for-Samsung-Galaxy-S-II-(2.3.4-time)

got a little better I think...

(WLAN+UMTS)

KornX
[Galaxy S II Themes and Apps] spradling:
Is it possible to get a CWM flashable zip of KG1 for us Mac users with no ODIN?

TIA:)
[Galaxy S II Themes and Apps] fredphoesh:
KG1 best so far

Anecdotal evidence in my home in the countryside is that I dropped a lot of calls on KF2, definitely the worst Modem I have had, KE7 was an improvement on that, and so far KG1 is the best on SGS2... I very often have a solid 4 bars. KF2 was up and down even when the phone was on my desk.

Mark
[Galaxy S II Themes and Apps] Carlis:
http://www.multiupload.com/7KWBP90GJP

Sent from my GT-I9100
[Galaxy S II Themes and Apps] samjpullen:
Link is dead...
[Galaxy S II Themes and Apps] allanon+:
I want to back up my modem on the phone before I try one of these. Is this the right way to do it?

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

adb shell

su

# dd if=/dev/block/mmcblk0p8 of=/sdcard/modem.bin bs=4096

Copy modem.bin to linux

$ tar -H ustar -cvf my_modem.tar modem.bin

$ md5sum -t my_modem.tar >> my_modem.tar

$ mv my_modem.tar my_modem.tar.md5

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

now, I can use the my_modem.tar.md5 file with Odin, right?

Thanks.
[Galaxy S II Themes and Apps] xinfinityoO:
y do u want to make things complicated.. isnt ur modem in the phone listed on the first page ?? if it is just download that as backup!!! and then flash any other modem u want..
[Galaxy S II Themes and Apps] xinfinityoO:
Just my feedback on various modems.

If yiu are in NZ the best one so far is KF2. i have tested all the new ones..even KG1.. KF2 performs the best
[Galaxy S II Themes and Apps] allanon+:
Thanks, my modem is DXKF1 (comes with DXKF4 rom, Asian) and I couldn't find it here, so I want to back up from the phone just in case.

Can anyone confirm if the command above is correct?

Thanks.
[Galaxy S II Themes and Apps] GOF007:
Mind sharing your DXKF1 backup?

I wanna test it too ^^
[Galaxy S II Themes and Apps] velgador0:
Getting better signal strength and less 3g/H+ switching with KG1.
[Galaxy S II Themes and Apps] bluekarlo:
Anyone has a download link for XXKI4?

I don't know who to flash the one in Veyka's collection because it's .bin D: I'm using Odin in flashing
[Galaxy S II Themes and Apps] starbucks2010:
Are you sure that this is ok for Romania? I think that the ROM from which came this modem is for Trinidad Tobago.

Thank you.
[Galaxy S II Themes and Apps] CamoGeko:
Put the .bin file in PHONE section and flash it. That's the actual modem file.

Or you can flash the zip via CWM recovery.

Any 9100 modem will work on any 9100 device. However, I do not live in Romania so I don't know if it will have good performance for you. The only way you will find out is if you try it.
[Galaxy S II Themes and Apps] MatangaChanga:
uhkg4 modem

Hi, can someone help me get the UHKG4 MODEM???

It is not anywhere in this thread,

Thanks!:D
[Galaxy S II Themes and Apps] NZed:
Some links are dead! Please fix as i am a bit desperate! Thank you!

BTW if i flash a i9100T file on a i9100M, will it kill my phone?
[Galaxy S II Themes and Apps] Intratech:
Telstra DVKJ1 Modem Odin: Download
[Galaxy S II Themes and Apps] poochewer:
i just ignored it.
[Galaxy S II Themes and Apps] Spewmonic:
I just flashed this. It is one of the best modem. Thank you!
[Galaxy S II Themes and Apps] salvatore94:
Could I flash this M250S modem on mine International I9100 w/o any problem?
[Galaxy S II Themes and Apps] Seifer1975:
I did. So far ok.
[Galaxy S II Themes and Apps] robsw:
For those of you on AT&T, what are you finding to be best at the moment? I have been sticking with KI3, even though I get fairly regular call drops that often seem to coincide with data synching. I tried LP6 and LPQ and experienced periodic complete losses of data service. I'd love to find something that gave me both a reliable voice connection and a reliable (and reasonably speedy) data connection.
[Galaxy S II Themes and Apps] bclark:
I've been using lph since it came out with great success and I'm testing lpq without any issues. I have no data losses nor call drops. I'm in the North East, long island to be specific. Have you tried changing your apn settings at all?
[Galaxy S II Themes and Apps] caifaz:
I flashed this, solved my wifi issues but now I have 3G issues
[Galaxy S II Themes and Apps] robsw:
I have to little avail. What are your settings?
[Galaxy S II Themes and Apps] bclark:
I changed the wap single apn to just mms then created one

AT&T HSPA+

phone

Internet,supl

Edit: I mean I live in an insanely over saturated area so b/w 2-4 down is good
[Galaxy S II Themes and Apps] lokhor:
Does anyone have an alternative link to the DUKJ1 modem cwm flashable zip?
[Galaxy S II Themes and Apps] maxtorxtremewow:
I'm looking for the Vodafone Australia DUKF4 modem! Can some upload it for me? All the links are dead :(
[Galaxy S II Themes and Apps] Damienoid:
You want the DUKJ1 modem here, It's the newer modem from VF than the one you asked for: http://whrl.pl/Rc56pi

Just unzip it with 7zip if you want to flash via Odin...
[Galaxy S II Themes and Apps] maxtorxtremewow:
I'm using a GT-I9100T on Vodafone!

Will this be ok mate? :)
[Galaxy S II Themes and Apps] lolcoelho:
Hi guys

Witch the Best modem for three (3) in London?

Thanks!!
[Galaxy S II Themes and Apps] CamoGeko:
Try XXKI4. :)
[Galaxy S II Themes and Apps] zabihjan:
could someone please upload the latest ics modem made for three network

thank you
[Galaxy S II Themes and Apps] zabihjan:
Lp1 and kp8 works well for me.. On three network in London

afteer flashing the lp2 from three network, all modems are crap including the lp2
[Galaxy S II Themes and Apps] Damienoid:
Yes, some have posted that this is still the best modem on VF :)
[Galaxy S II Themes and Apps] DreadPirateDan:
Here is Vodafone I9100TDUKF4 modem:)
[Galaxy S II Themes and Apps] upNsmokeAllDay:
Can i use these with my ATT galaxy s2?
[Galaxy S II Themes and Apps] tinginator:
Most of the modems are only for the i9100 version, so quick answer is no.
[Galaxy S II Themes and Apps] veyka:
New modems

XXLPQ

DXLP7
[Galaxy S II Themes and Apps] phochiom:
Using LP7 transformed my experience to enjoyment. Now much better drain, cooler battery and the sound quality is good.

I am on wanam lite GB.
[Galaxy S II Themes and Apps] Tokobo:
Hi guys,

Would anyone be so kind to download the KG5 modem in the front page and reupload to mediafire or something? (Link: http://www.multiupload.com/ITTJKN9UR4)

I can't seem to access multiupload =(
[Galaxy S II Themes and Apps] MatangaChanga:
Noob question.:D

Can I flash these modems in a Ginger Bread Rom??

Thanks
[Galaxy S II Themes and Apps] veyka:
Sure, you can try them, at worst they wont work and you will need to reflash a new modem.

---------- Post added at 05:54 PM ---------- Previous post was at 05:53 PM ----------

I cant find a download of the KG5 modem anywhere atm, but I will keep looking.

Edit found:

XXKG5 modem
[Galaxy S II Themes and Apps] Coruja747:
UHLPE - CWM flashable

UH---> Latin America, The Caribbean

credits to geko95gek who provided ODIN version of this modem, I just modified it to install using CWM instead ODIN

just a temporary link, someday I will delete it from my server, so please someone download it and upload again on another file hosting
[Galaxy S II Themes and Apps] robbiekhan:
Anyone got a link to LP7 modem at all?

Thanks.
[Galaxy S II Themes and Apps] veyka:
Less than a page above your question.
[Galaxy S II Themes and Apps] Skysurfer77:
O2 UK just released there official ICS for the Samsung Galaxy S2.

Is there anybody out there who could rip off the modem?

I am on O2 in Germany and found out, that the O2 modems from UK running fine :D

EDIT:

Found it :-D

http://xdaforums.com/showpost.php?p=24096931&postcount=40
[Galaxy S II Themes and Apps] veyka:
XXLPR Credits to ZonyX I repackaged/renamed and reupped.

Edit: file name/etc changed to reflect correct version, thanks to wesleyrpg for noticing.
[Galaxy S II Themes and Apps] xeigen:
CWM Flashable DXLP7

http://www.box.com/s/a770f8f916bc21d903a5
[Galaxy S II Themes and Apps] Ok_Kaleidoscope5109:
i find that all the new ICS modems suck for use on 850/1900 networks like AT&T. Is this true? I'm still using KI4 for this reason...
[Galaxy S II Themes and Apps] jcrompton:
You know I wish there was a more scientific answer to this but I find that the newer modems work great sometimes BUT they seem to be intermittent. Sometimes I can great data speed with the new modems like LP7 but the example is today - my wife called me multiple times and said phone went straight to voicemail (all the time I was in fairly good signal area)
[Galaxy S II Themes and Apps] zabihjan:
true

i so much miss gingerbread ad my ke7 modem
[Galaxy S II Themes and Apps] wesleyrpg:
This modem is actually LPR, but thanks its the one i was looking for!
[Galaxy S II Themes and Apps] veyka:
Oh, it is as well, thanks for noticing that, ill reup and update the link.
[Galaxy S II Themes and Apps] odm3xda:
thank you all developers for the great work you are doing ... i just have some kinda newbie question about all those modems !!

i got ics stock odexed by wanam LP2 and i flashed xxki4 cause it was the one came with my phone with GB. now is there a better modem or (radio) FOR BATTERY LIFE on ICS LP2 than XXKI4???
[Galaxy S II Themes and Apps] Ok_Kaleidoscope5109:
Yeah. I was at work and it kept dropping in and out with LPQ. I know that while I get 4 bars outside, the data congestion is bad or something in our area. It has issues connecting a lot, but at least KI4 will ALWAYs maintain reception. LPQ goes from No Service to 4 bars a lot and back and forth.

In other stable areas like my home where congestion isn't an issue, LPQ hangs on fine. However I noticed LPQ sucks balls in San Francisco, CA where I know AT&T has weakness. Whenever the data seems to be congested, it just fully drops out whereas KI4 hangs on.

Can't you use ICS with old modems?
[Galaxy S II Themes and Apps] Spider__:
Best modem for Sweden (Telia)?

Hi guys,

What is the best modem för Sweden (Telia)?

Samsung Galaxy S2 (White)
[Galaxy S II Themes and Apps] Karpfenhai:
You can use any modem independent from the os version...

Im still on ki3, even with an lp2 ROM.

Swyped from my GT-I9100 using XDA App.
[Galaxy S II Themes and Apps] odm3xda:
I am using KI4 with LP2 but I wonder if there is a better battery life with newer radios
[Galaxy S II Themes and Apps] Karpfenhai:
From my experience there is not, but signal reception has improved a lot, so its up to you, battery or signal ;)

Since most people spending their life's almost in urban areas, bad signal reception may not be an issue for them, so KI3 / KI4 is a good decision, on rural environment it might be different, those guys need reception for the cost of battery...
[Galaxy S II Themes and Apps] Chanz09:
The new xxlpr modem give me better signal and battery same as kI4.
[Galaxy S II Themes and Apps] brucewein:
Hi,

i'm looking for LPR modem ODIN or CWM (it doesn't really matter to me).

Can anyone please pinpoint me to the proper link / post ?

10x !
[Galaxy S II Themes and Apps] Karpfenhai:
On which band? At least not on gsm 1800.. afaik. Unfortunately it makes a huge difference between 900 anx 1800 :-(

Swyped from my GT-I9100 using XDA App.
[Galaxy S II Themes and Apps] belmont19:
Im from venezuela which modem do you recomend to me, now im using. Cm9

Enviado desde mi GT-I9100 usando Tapatalk
[Galaxy S II Themes and Apps] Pilatus47:
I´m in Mexico and LPR is working very good. I´m uing CM9 too.

Saludos
[Galaxy S II Themes and Apps] championc:
I found this link - http://www.wuala.com/jmeslosuyo/FrequencyROM/MODEMs/XXLPR-CWM.zip/

I've been running on LPR for about the past two hours and battery drain is definitely LESS than my last one which i'm fairly sure was LPH
[Galaxy S II Themes and Apps] ludester:
LPS modem flashable...very similar to LPR modem for me.

LPS Download
[Galaxy S II Themes and Apps] Juzman:
Not sure if it's in this thread. Here's the latest one from Telstra I put on my Dropbox (DVKJ1) - https://www.dropbox.com/sh/dw1flo5dvcgb3yj/qWpDZGv9N-/modem_CWM_Telstra_DVKJ1.zip
[Galaxy S II Themes and Apps] Will of fire:
i am using my i9100 on att and have modem xxkh3 is this best>?
[Galaxy S II Themes and Apps] trveller72:
HSPDA connection on 3 Ireland

Hi,

I see a few people have (had) this issue, but cannot find how they solve it.

After I am loosing 3g connection because of low 3G signal, when i am getting back to an area where the signal for 3G is good, the phone stays on Edge or G. I have to go in Mobile Networks, rescan and the phone will reconnect on 3G/H+. It seems to happen only if I loose the 3G signal for a longer period (>15 minutes).

This started to happen only after switching to ICS. On GB did not happen, this is why I suspected a ROM issue.

- Tried with WanamLite V10.2 and CM9 20120404 - same.

- I was trying different modems KI4, LP1, LPR - no change.

- I tried Siyah V3.0 RC2 Kernel - no luck.

- checked APN settings on a friend's phone and on the net - same as mine.

I have to mention I am with 3 Ireland - this may be the main cause. In my apartment data signal is almost 0, so my phone jumps to roaming on Vodafone with, at most, G connection.

Currently I am on CM9 0404, Siyah V3.0RC2, modem KI4 (When I get H+ connection the speed is very good compared with other modems).

I checked on a friend phone, 3 Ireland, Stock Sammy ICS and after latest ROM update, modem is NELP2 (can't find this modem from a trusted source).

Any ideas will be appreciated!

Thank you and sorry for the long post.
[Galaxy S II Themes and Apps] alc027:
DVLB1 is the latest modem from Telstra for T variant
[Galaxy S II Themes and Apps] veyka:
NELP2 (H3G aka 3UK shipped modem)
[Galaxy S II Themes and Apps] jerdog:
I started a thread asking about which modems people are using on AT&T...

I have used LPQ, XXKI3 and KI4... KI3 right now seems to be better
[Galaxy S II Themes and Apps] Mr.V786:
Hi everyone,

Is anyone on here with the Virgin Mobile network in the UK?

Im using XXLPS that came with the VK 4.41 Rom and its very slow, it connects on HSDPA and i get 2 bars but speed tests say im getting 300k download!! ive read pages on other thread and seen some people with 15MB!!!

I'm gonna download every modem and try them 1 by 1, cn i flash do a speed test and then flash again straight away? or do i have to let the modem settle for a certain time before i do that?

Any help would be much appreciated.

Thank you!

Mr.V
[Galaxy S II Themes and Apps] Juzman:
Oh, thanks for this info. Didn't realise (I got DVKJ1 from 2.3.6).

Just downloaded the firmware, it is: GT-I9100T_TEL_I9100TDVLB1_I9100TTELLB1_I9100TDVKJ1.tar.md5 which I am guessing the modem is DVKJ1, correct?

Edit: So I extracted the modem.bin file from GT-I9100T_TEL_I9100TDVLB1_I9100TTELLB1_I9100TDVKJ1 and created a CWM flashable zip and flashed it, the modem is still DVKJ1

Quick check on Whirlpool found this post: http://whrl.pl/Rc7FP6 so I can confirm, DVKJ1 is latest.
[Galaxy S II Themes and Apps] trveller72:
Thank you, I think I will try both.
[Galaxy S II Themes and Apps] Will of fire:
Thanks I couldn't seem to find any info searched for hours. I will try it.
[Galaxy S II Themes and Apps] DAMAGE_INC29:
DXLP7 modem

good pm guys..

can someone give me a link of DXLP7 modem?

i cant find it in this thread..or maybe i got crossed eyes for searching it the whole day

thanks in advance

---------- Post added at 02:21 PM ---------- Previous post was at 02:16 PM ----------

nevermind guys..i finally found it ^^,
[Galaxy S II Themes and Apps] DAMAGE_INC29:
modem behavior

good day..

ive been flashing modems the whole day and observing how the signal behaves..the tried are LPQ,LPJ,and LPR with i got from the OP then i also tried DXKF1 flash via ODIN and DXLP7 flashed from CMW

i observe all the modems ive used except the LPJ, they were all fixed with HSDPA with "H" signal all the time..while the LPJ shifts from UMTS:3 with "3G" signal when im not using or surfing the net then jumps to HSDPA "H" when im surfing..

with my observations, can i ask the knowledgeable people here to comment the share their thoughts with which among this modem is better?ive read that shifting from "3g" to "H" is a way of conserving battery when not in used..but im not sure about it...

need help so i can use a pernament modem for me..thanks a lot guy.. ^^,
[Galaxy S II Themes and Apps] graswant:
DXKL1 modem needed

Hi

Can someone please attach the file instead of multiupload as that link in the post somehow doesn't work. I need DXKL1 (CWM flashable)

Regards

Gaurav
[Galaxy S II Themes and Apps] goamushroom:
Here is an update for your collection:

LP3 Modem, flashable trough CWM. Grabbed it from superleeds27 here: http://xdaforums.com/showthread.php?t=1566885&page=2
[Galaxy S II Themes and Apps] graswant:
found it

http://xdaforums.com/showthread.php?t=1131950&highlight=dxkl1&page=88
[Galaxy S II Themes and Apps] eC1990ho:
Anyone here from Belgium who can recommend me a good modem?

Or just in general, mostly using wifi with the occasional H+

thanks
[Galaxy S II Themes and Apps] pedro.coba:
thanks very helpful friend
[Galaxy S II Themes and Apps] EsSa55:
Hi

Will be interested in your findings.

Also on Virgin, currently using XXLPQ
[Galaxy S II Themes and Apps] tdiddy1987:
just downloaded and tried to flash I9100_radio_KG6_CWM and it failed... said it was a bad file or something

anyone have xxkg6 that works?
[Galaxy S II Themes and Apps] ribelle85:
cm9 vodafone italy

what's the best for i9100 with CM9 used with Vodafone Italy?

Thanks in advance :D
[Galaxy S II Themes and Apps] alchimia:
I need the same information!
[Galaxy S II Themes and Apps] veyka:
All the modems I have mirrored are available here

Clickme
[Galaxy S II Themes and Apps] trveller72:
NELP2 working great. Did not try NEKF2. Thank you.
[Galaxy S II Themes and Apps] kmaximax:
can someone please post the modem from the new VODA firmware

Base Firmware: I9100BULPC (4.0.3)

Region United Kingdom

Carrier: Vodafone (VOD)

Build Date: 4th April 2012

Modem: BULP6

CSC: VODLP8

as a CWM package thanks :)
[Galaxy S II Themes and Apps] socratesig:
Here you are:

http://www.mediafire.com/?ac9sc6y1769vc49
[Galaxy S II Themes and Apps] kmaximax:
nice one many thanks :)
[Galaxy S II Themes and Apps] ribelle85:
Help please.. no one?

Inviato dal mio Android con Tapatalk
[Galaxy S II Themes and Apps] Karpfenhai:
Seems you have to figure out by yourself, there is no general recommendation, you can flash any modem you want, independent from the ROM...

Try ki3 or ki4, best battery savings....

Non posso rispondere meglio di piu.. ;-)

Swyped from my GT-I9100 using XDA App.
[Galaxy S II Themes and Apps] Mr.V786:
Hi Mate,

So far my findings

NELP2 fastest!

XXKP4

XXKP8

XXKPA are all decent modems

i went thru 20 modems n one night was up til 5am lol.

try them in that order and run some tests!

Rom and Kernal have an impact on speeds too as some kernal are tweaked some arent. I find the siyah Kernal to be the best. I believe it contains TCP tweaks

What rom have you got installed?

Mr.V