From my understanding... a i9000 base rom should be used with an i9000 modem and kernel. At the same time a captivate base rom should be used with a captivate based modem. Please correct me if this is not true.
Now, what I don't understand is why are there roms that mix it up? Firefly uses the rogers Froyo.. which is JL1 captivate base rom, but at the same time use a JK4 modem which is i9000 from bell.
I'm not exactly sure where JPY, JS3 and more recently JS5 came from either.
generally using a an att or rogers rom will be incompatable with another modem. not that the phone wont work but you lose bluetooth audio. it is posible that this doesn't apply to the official rogers froyo or that they have accepted this as a minor compromise for adding hsupa.
i dont know of another reason to match modem to anything, many say to match it to the kernel but in the case of an att rom that doesn't help any, and i have run t959d modems on i9000 kernels and roms and there are no ill effects. so that theory is out.
some even like to run captivate modems on other roms giving up hsupa because they get more stable results.
really the non rogers/att modem on a rogers/att rom is the only known problem. all other "rules" are mearly safe suggestions, but if we did things the safe way all the time we wouldn't learn anything.
the only other criteria to choose a modem is that on att or in canada you want to use a modem that defaults to the 850 band. basically if you want hsupa use a bell or telus modem on i9000 kernel and non att/rogers rom. there are also chinese and austrailian and newzeland and other modems that work just fine. i find the kp1 from china to be the most versitile. i think the modem has all the bands so it's better for international use and i get the most satalites with it though the positioning is less stable untill you tweak the gps settings a little.
@ dani897 are you meaning the kp1 has all 5 wcdma bands enabled? i know of 850/900/1700/1900/2100 that would be handy.... is there any known draw backs or just try and see? it would be nice to change countries/carriers without finding/ flashing a new modem. great info thanks.
Hi i have a question about allowing the hspa network on stock froyo rom....
How would i go about doing this?
Flash a new modem? Possible one from an hspa capible device like the i9000?
Sent from my SAMSUNG-SGH-I897 using XDA App
http://tinyurl.com/66n2a6t
Sent from my SAMSUNG-SGH-I897 using XDA Premium App
Would i also have to use an i9000 kernel or could i use my current existz voodoo kernel?
Sent from my SAMSUNG-SGH-I897 using XDA App
Kernels have to match modems. kb1 to kb1, i9000 to i9000.
So is running a i9000 kernal better than using a captivate kernal?
if so what are the pros and cons if any?
rom kernal match
Look. I've tried different kernals with stock froyo 2.2 and learned the hard way with sticking with stock modem. Call quality was crap and battery life severly dimished with having a improper mix of modems and kernals. Since those mistakes I run continuum 4 with onix kernal 2.05 and jvk modem and have great batt life and call quality and download speeds are phenomenal. The best way I have found without going flash crazy is to see what the experienced people are using on their phones. The have it listed in their stats at the bottom of each posting they make. These people have been modding for awhile and know by experience what works best. Try that and you should have no problems getting the best combo for your captivate. Hope this answers your question. Good luck!
hsupa is over rated the phone already has hsdpa. hsupa may be good if you want to video chat or teather. but if you must get hspa in full you want to flash a different rom. no one has figured out a workaround for the brokn bluetooth calling with a rom/modem mismatch on a north american captivate rom.
as for the kernel, well i haven't tried an i9000 or i9010 or i9088 kernel on kb1 but they all should work. also i haven't tried changing the modem without changing the kernel but i believe that should also work. even if it is not recomended. i have never adhered to the notion that modems and kernels should match and had good luck with modems for t959d i9000m and i9088 on i9000 i9010 and i9088 kernels without major problems. it does seem that the older modems do not work all that great on the captivate with call volume or quality problems regardless of rom and kernel. but the kp1 from i9088 and kc1 from i9000 are both great on the captivate, i think i give kc1 the edge. if it weren't for those two and maybe others that i didn't try i would recomend leaving it all kb1 for the simple fact that a phone should make good phone calls.
the adage that the modem and kernel must match is true. ie. i9000 kernel/i9000 modem i897 kernel/i897 modem....it is absolutely true you must match those. if you use an i897 modem with an i9000 kernel or vice versa, you will have data but no voice. its not just a myth
Do any of the 2.3 based modems support 850mhz for 3g?
I've tried JVH and JVO, but neither seem grab an 850mhz signal. I've gone into secret codes and added 850 to the combi bands, but the phone never grabs 850.
This leaves me sitting on edge while at home, with weak signal. On 2.2 based roms I have no problem with the various modems that support 850mhz for 3g.
This is on a Bell i9000m.
Flash JL2, set 850 as the only one, then flash JPD then you'll be able to flash anyone you'd want.
t1mman said:
Flash JL2, set 850 as the only one, then flash JPD then you'll be able to flash anyone you'd want.
Click to expand...
Click to collapse
those will work ok on a gingerbread based rom? They were released with froyo roms, just want to make sure I am not going to kill anything.
GreenEnvy said:
those will work ok on a gingerbread based rom? They were released with froyo roms, just want to make sure I am not going to kill anything.
Click to expand...
Click to collapse
The modem files are firmware agnostic....they can be used with either froyo or gingerbread.
Sent from my GT-I9000 using XDA Premium App
Thanks guys.
Did as directed:
Flashed JL2, set it to 850 only, rebooted, flashed jpd, rebooted, flashed jq1, set it back to auto and added 850 to combi.
Seems to be working!
I have tried more than 100roms
But they have a problem e.g.external_sd dnt work(fixedwithdirectorybind), that media problem, etc...
So can anyone help me out which rom is the best with least number of bugs???..
Thanks
Sent From My Pc/GalaxyS/Tab or Ace Plus
The best ROM is: StockRom+Custom Kernel+Custom Theme
Which STOCK ROM?
Which CUSTOM Kernal?
Which CUSTOM Theme?
Answer PLEASE ASAP!
Choose what you want! First try recommended ROMS like CM9 or Slim.
Last Official ROM for ur country. Kernel that provide OC (but near 1.4 Mhz) and UV, IO - SIO and Governor - SmartassV2. There alot of theme u can choose any.
You want GB or ICS ?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Envoyé avec Tapatalk 2.0.1 depuis mon Samsung Galaxy S GT-I9000
ROM : SLIM ICS 3.3
Kernel : Origine ROM
Modem : JW4
ics: Slim ics + Midnight kernel
GB: gamerz rom + semaphore kernel
Inviato dal mio GT-I9000 usando Tapatalk
Stock Slim v3.3 is near perfection...
If you try ICS, you'll never get back to GB.
I recommend you latest nighly from CM9 http://download.cyanogenmod.com/?device=galaxysmtd .
It's rock stable, fast and battery friendly.
My current config is: CM9+Devil 0.67b VC+ KB3 modem.
UGH
vades said:
The best ROM is: StockRom+Custom Kernel+Custom Theme
Click to expand...
Click to collapse
vades said:
Last Official ROM for ur country. Kernel that provide OC (but near 1.4 Mhz) and UV, IO - SIO and Governor - SmartassV2. There alot of theme u can choose any.
Click to expand...
Click to collapse
so i live in USA and the stock rom for my country is OLD, 2.2, also sammoblie provides a multiupload link for my firmware UNDOWLOADABLE, so how do i get it? ive searched google. im furstrated, this forum has been a waist of 7 days for me, i finally give up on searching for an answer and start posting, but noone is willing to help im really starting to loath the money i spent on this blated phone. why so much stress for something that initially seemed teeming with feedback??? no firmwares that i try have 850 band enabled for 3g t-mobile USA, or servicemode, odin doesn't work for me 3/4 the time, and when it does its only because heimdall is giving me trouble, i am not a dumb person, there is just SOOO much information, much of it redundant, but none pertaining to my question.
for 850 band u must looking for a modem that support it, rom it's not related to bands. so install the rom u want and then flash a 850 band modem.
My combination
[4.0.4 IMM76D][ROM] EliteV10.1 Beta (13/04/12) + [KERNEL] Semaphore ICS 1.0.0 (1.0.1s)
I think it is pretty good for daily use。
Can you give me the links to gamerzrom + the kernal?
cyanogenmod 7 is the best rom
FEGORS said:
My combination
[4.0.4 IMM76D][ROM] EliteV10.1 Beta (13/04/12) + [KERNEL] Semaphore ICS 1.0.0 (1.0.1s)
I think it is pretty good for daily use。
Click to expand...
Click to collapse
Link??
rockstarrrrrrrr said:
cyanogenmod 7 is the best rom
Click to expand...
Click to collapse
Mate Can you give me the link
PM or Post ?
Brutalibus said:
for 850 band u must looking for a modem that support it, rom it's not related to bands. so install the rom u want and then flash a 850 band modem.
Click to expand...
Click to collapse
WTF you on a bout?
Arnoj said:
You want GB or ICS ?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Envoyé avec Tapatalk 2.0.1 depuis mon Samsung Galaxy S GT-I9000
ROM : SLIM ICS 3.3
Kernel : Origine ROM
Modem : JW4
Click to expand...
Click to collapse
[email protected]
vades said:
Last Official ROM for ur country. Kernel that provide OC (but near 1.4 Mhz) and UV, IO - SIO and Governor - SmartassV2. There alot of theme u can choose any.
Click to expand...
Click to collapse
Link Mate?
So i just bought this GT-i9000 international GT-I9000GSMH flashed it with CF-Root-XX_OXA_JVU_2.3.6-v4.3-CWM3RFS.zip. Ran servicemode *#*#197328640#*#*, enabled all bands, then installed Mintberry-2.3.17 through CMW, then i tried different modems KC1, JVU, JVP, JVQ, JJPG, UGJL2, and the new nexus ones, kb3 kf1, NO LUCK with enabling 3G on my T-Mobile USA phone, can anyone help me, am i using the wrong rom? i like mintberry, any help greatly appriciated, ive been searching the forums with no avail, should i just stick with stock rom, maybe a stock+?
xakuvo said:
Guides I am following:
http://soggycashew.weebly.com/modem-dance.html
https://docs.google.com/document/pub?id=1022rpBQPDZvU0MAa0u6Nuvg3D9TGXrCIxlV8mDjN6us&pli=1
SSN: -I9000GSMH
I was told it is the international edition of the GT-I9000
I am unsure what firmware I started on, i think it was a JVT? I'm unsure, but that doesn't really matter, i used Heimdall, because Odin ALWAYS stops either at Initialization... or Setup Connection..., to flash JVU, then reverted to old USB drivers and used odin to install CF-ROOT JVU(works fine just to flash kernal), so my phone was rooted, i then installed mintberry through CMW AND GOT VERY COMFORTABLE WITH IT, then realized mintberry would not allow me to go into servicemode which would HOPEFULLY get me on T-Mobiles 3G network
So im reading the guide for the modem dance and it asks me to be on UGJL2, TLJL3, UGJK3, UGJK4, modem? firmware? WHAT? i go to http://www.sammobile.com/firmware/ and try to download ANY of the listed firmwares, oh they are all on multiupload links, and they barred themselves from USA ISPs, so i cant download the firmwares, ive searched google, found an unuseable encrypted .rar, woo-hoo... but anyways, i downloaded the appropriate modems, used heimdall to revert back to the "oldest" firmware i can download... JVU (DUMB!!!!!), install cf-root with odin, go to servicemode and enable ONLY WCDMA 850, NO OTHERS ARE STARRED, reboot, *#0011# and it says im on the 1900 band, WTF, i try to install UGJL2, TLJL3, UGJK3, UGJK4 modems through CMW, USB cable NOT plugged in, same results. So I've failed on the 2nd step of the guide...how, i doubt its user error. $*$&#&@#&@ CURSES!!!!! i just tried to follow gamerz-roms guide to flashing his rom, BTW he provides link to mutliupload to d/l JVU, VERY UNIVERSAL, but odin screwed up when i try to install sephamore 2.5, why does odin always screw up? why doesn't anyone update their links? why cant i enable 3g on t-mobile? is there a rom that has WCDMA 850 enabled by default? i could flash my own modem through heimdall, but none seem 850 defaulted, right now im HATEHATING my phone, very frustrated, help me please
Im now trying to install JVU through heimdall, BECAUSE ODIN SUCKS! i replaced the modem file in the JVU package with the modem file in captivate-ugjk3-cwm3.zip...so i guess i'll see what happens
Well it worked once, then i tried again, but with sephamore kernal as replacement, now i get:
Handshaking with Loke...
ERROR: Failed to receive response!
Now what...
Click to expand...
Click to collapse
xakuvo said:
So i was able to get heimdall to work by reinstalling the drivers, unplugging usb, and removing the battery for a couple min. and i installed JVU, which i seem to have to default on...now I tried the supplied passwords on sammobile on the encrypted .rar for UGJL2, a us firmware, and one worked! but when i try to flash with odin, its an odin package, i suppose i could load through heimdall, but anyways when i try to flash with odin it fails, as does the other file UGKC1, I9000UGKC1_homebinary.tar, and I9000UGJL2_homebinary_add_param.tar, so is it impossible to revert back? i should be able to do it, maybe i'll repackage these odin files for heimdall...
if i repackage for heimdall im missing boot.bin dbdata.rfs 512.pit and firmware.xml, should i pull these from the heim jvu package i have? merge them with the KG3 files, try installing through heimdall... would that be safe since odin seems to always fail on me?
Click to expand...
Click to collapse
xakuvo said:
oh i should post this list of comptable 850 defaults i found,
[I9000 Modem release dates]
UGKG3 - 07/18/2011 Default 850mhz
BVJJW2 - 05/18/2011 Default 850mhz
TUBJV6 - 05/04/2011 Default 850mhz
TUBJPD - 04/04/2011 Default 850mhz
UGKC1 - 03/04/2011 Default 850mhz
TDVJP9 - 02/15/2011 Default 850mhz
TUBJP9 - 01/28/2011 Default 850mhz
TJJJV5 - 01/15/2011 Default 850mhz
BVJJPG - 01/14/2011 Default 850mhz
BVJJV3 - 01/02/2011 Default 850mhz
UGJL2 - 12/21/2010 Default 850mhz
BVJJPD - 12/13/2010 Default 850mhz
UGJK4 - 11/29/2010 Default 850mhz
UGJK3 - 11/17/2010 Default 850mhz
thank you http://soggycashew.weebly.com/uploads/8/3/8/2/8382536/i9000_release_dates.txt
now i just got UGKG3, latest 850 enabled homebinary.tar. i found a guide, based on a guide i was using, i guess its updated? i try to do modem dance... http://www.darkyrom.com/community/index.php?threads/guide-enable-850mhz-on-any-modem.3334/ is the guide i found, i follow http://soggycashew.weebly.com/ modem dance though, i dont know, we'll see i guess
i wanted to confirm that i flash with repartition uncheck and i dont have to add the 512.pit file correct?
Click to expand...
Click to collapse
gila2 said:
Official Gingerbread rom for Singapore is DXJV9..
http://forum.xda-developers.com/showthread.php?t=1102881
Singtel CSC for i9000 is XSO
http://www.pspmyspace.com/techstuffs/2012/01/how-to-check-your-samsung-galaxy-csc-version.html
Check if your HSDPA is enabled
Key in *#*#301279#*#*
Display Info > 1 is enabled
Finally, make sure you are using a 3G SIM card.
Click to expand...
Click to collapse
do i need to flash my CSC? I know what modems are 850 enabled, i have one on my phone, 850 was enabled after i booted it from flashing modem with heimdall
i **00!!# and my band is gsm1900, and when i only WCMA 850 i get no service, ive tried following guides,http://www.darkyrom.com/community/index.php?threads/guide-enable-850mhz-on-any-modem.3334/ ugh, ive just about given up on t-mobile 3g, im thinking about making the switch to at&t, but i got a great price/month $30 Unlimited data&text, 100min talk, great deal i think