I've read up on the forums on this issue and because of my newbness , I'm confused a little. I have Cog4 flashed to my phone and I have no issue , But if I try Firefly or Axurma(?) I get little bars or no reception. I guess it has something to do with the i9000 ROMs and ATT. Are there any ROMs that use the same build as Cog , but with more bells and whistles like Firefly? How do I know which build a ROM is supporting that is captivate compatible ?
i have firefly on mine and flashed the ugjl2 modem and it helped with my signal
Search for more info and explanation but the dime store version is:
i9000 based ROMs (like anything JPX/JPY/JS3/JS5/JS7) require an i9000 radio and kernel.
AT&T based ROMs (anything based on KB1, and previous leaks) prefer an AT&T radio.
Single most important thing is to match an i9000 radio, with an i9000 based kernel. And an AT&T based kernel, with an AT&T radio.
Any i9000 ROM can be run on the Captivate if you use a specially designed kernel. If not, the ROM will boot, but certain functions (especially the orientation sensor) will not work properly.
If you don't do that, bad things *may* happen. There's plenty of "mix and match" but only to a certain degree.
Bottom line is, different roms use different modems. There are a few threads on modems that give dowload links. If you're on a I9000 rom, you have to use a I9000 modem. If you're on a KP1 rom, you need to use one that's compatible. It's as easy as copying the modem onto the root of your internal SD card then flash it with CWM. Different modems can give better reception, better DL/UL speed, battery life, and GPS accuracy. There's not one that is the "best" for everyone though. You need to try them to see what works best for you.
This is the exact reason I went with the Cog 4.1 rom as it was based on the latest AT&T 2.2 update with the KB1 baseband so no reception issues.
Related
Hello,
I've read all I can here. Sorry if its been posted before. I love the Cognition ROMs and am keen to try out HSUPA (JG8 modem?) on one of the more recent versions.
The lower pings and faster upload is so tempting. Looks like the Geomod ROM will break bluetooth streaming / phone calls which I also need.
Anyone done this - and had any luck? Any guides on how to do this - how to enable and find different bands (850Mhz, etc..) and how to return to stock modem (JPP) as needed? ....
Ideally I'd like to switch modems... JG8 vs JPP with my Cognition ROM.
Thanks anyone who might have advice!
Jeff31UK said:
Hello,
I've read all I can here. Sorry if its been posted before. I love the Cognition ROMs and am keen to try out HSUPA (JG8 modem?) on one of the more recent versions.
The lower pings and faster upload is so tempting. Looks like the Geomod ROM will break bluetooth streaming / phone calls which I also need.
Anyone done this - and had any luck? Any guides on how to do this - how to enable and find different bands (850Mhz, etc..) and how to return to stock modem (JPP) as needed? ....
Ideally I'd like to switch modems... JG8 vs JPP with my Cognition ROM.
Thanks anyone who might have advice!
Click to expand...
Click to collapse
Please search within the Captivate sub-forums to find the answer to this question. It has been discussed in great detail already, and there are quite a few step-by-step guides floating around.
Just to point you in the right direction though: To get HSUPA working with any 2.2 ROM (at least so far) you need to flash the JG8 modem FIRST before any other modem interacts with FroYo. This "enables" the 850 MHz band which you will need if you plan on using 3G w/ AT&T in America. Then you can flash the HSUPA enabled modem of your choice after (I prefer JPP, but others will work). Also, it's worth noting that i9000 radios (which all of the HSUPA enabled ones are) tend to play better with i9000 kernels. Meaning that if you are running cognition, you may want to switch to a i9000 kernel to go with the i9000 radio you are trying to install.
Happy searching!
After much reading, searching, study and experiment I'm reasonably sure you can't get hsupa AND bluetooth working on a captivate rom, like cognition. I've only been able to get both on an i9000 rom.
Using doc's for cappy by mikeymike with the setiron kernel. Both work, the bluetooth not always well. The unfortunate part of this one is that wired headsets are fubar. Don't work at all. Other than that, the rom works great.
You NEED an i9000 reorient kernel (not ROM) for voice. As you noted, data works fine, but wait till you make a call.
You can pair cognition with an i9000 kernel, however, you may have weird bugs.
Best option is to use i9000 ROM + i9000 reorient kernel + i9000 modem, all froyo.
Jg8 is eclair and only used temporarily to enable 850 mghz.
Sent from my SAMSUNG-SGH-I897 using XDA App
Have been wanting to flash a custom rom for a while (rooted with unleash the beast, I know it's ancient) on 2.1, had been planning on DG's Cognition (was just updated to 4.3), but also came across Continuum v4, which looks great. Was leaning more towards Cognition, figuring it'd be more stable based on KB1, but not hearing any complaints from people using Continuum. Any downside I'm wondering to going with Continuum, as it's I9000 based 2.2.1? Thanks.
Edit: Now may be leaning more towards Cognition now that it's been updated (I think it was the Continuum theme that was luring me in)
not sure about continuum but it may have refernces to a nonexistant camera being from the i9000. not sure but i think all the newer roms have that fixed. really the only downfall of i9000 roms is that some people claim the att roms have better call quality because they use a different method of noise reduction, im not sure if that is proven and i havent run an att rom in a while, i do notice having more problems hearing people than when i bought the phone but i didn't notice it imediately upon flashing an i9000 rom so it is not a good observation. but the i9000 roms offer hsupa (over rated unless you tether and open alot of webpages at te same time) and a bit better benchmarks and maybe a little smoother.
neither is a bad choice and cognition has all the important mods like voodoo sound and lagfix and various tweaks. and oc/uv if you want to do that sort of thing so it is not limited much by being an att rom.
Dani897 said:
not sure about continuum but it may have refernces to a nonexistant camera being from the i9000. not sure but i think all the newer roms have that fixed. really the only downfall of i9000 roms is that some people claim the att roms have better call quality because they use a different method of noise reduction, im not sure if that is proven and i havent run an att rom in a while, i do notice having more problems hearing people than when i bought the phone but i didn't notice it imediately upon flashing an i9000 rom so it is not a good observation. but the i9000 roms offer hsupa (over rated unless you tether and open alot of webpages at te same time) and a bit better benchmarks and maybe a little smoother.
neither is a bad choice and cognition has all the important mods like voodoo sound and lagfix and various tweaks. and oc/uv if you want to do that sort of thing so it is not limited much by being an att rom.
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Click to collapse
Thanks for the advice. Yes, I think the AT&T version takes advantage of the audience chip for sound quality. Likely won't oc/uv, but looks like both have the ability to do so. Looks like both have the ability for lagfix with ext4.
As long as you've got the ROM flashing down, I would try several ROMS and stick with what you like best. Personally, I like Serendipity. No knock on any other custom ROM, but it's my personal preference. Happy flashing!
try out phoenix/firefly/supernova. all three are awesome man. really fast, super stable, smooth as hell, great battery life, gps actually works. the developers will help anytime they get the chance. which from what i've seen is anytime a question is asked. seriously really great roms.
I prefer i9000 based ROM to KB1 based ROMs.
KB1 is Android2.2 while i9000ROMs are on 2.2.1 now. I think 2.2.1 fixed some memory leaking bug.
Also I personally feel the i9000 ROMs are more polished.
My favorites are pheonix, supernova, and fusion. With firefly as number one backup.
I have flashed a lot of Roms successfully, ever since I got the inspire (over a year ago). Sure in the early stages of learning the device I had some boot loops, flashes that didn't take, or just random items.
However, as time has past I have noticed a problem when it comes to signal.
When I flash a Rom I always use the recommended radio, and ril combo that is suggested, however, I flash all available radios for our device, to make sure I have the right one for my area. (Mississippi, Alabama, and Louisiana)
I have a device that doesn't like overclocking, past 1.2 normally, no matter the Rom or kernal.
So I keep the device a hair over 1G, for stability.
Now to my question.
When I flash GB with sense 2.1, I get the best signal, and GPS lock of any build.
When I flash GB with sense 3.0, the signal drops some, but still ok.
When I flash GB with sense 3.5, the signal goes away. (I know some Roms have a glitch in the display) however I totally lose signal, where I had full service with the above.
My question is? Is there a way to pull the radio set up from GB 2.1 and align it with GB 3.0, GB 3.5 or even ICS?
Or is this based off the RUU that the Rom is based off of?
The Rom that gives me the best radio and GPS is Rumrunner 4.0, and the worst is any sensation port.
I have found a lot of stable, clean, and fast Roms that I like, however, I always have to return to a GB 2.1 Rom, because of signal issues.
Any insight on this would be awesome!!
"This has occured on multiple devices I have rooted, and flashed for others, so I know it is not just my device."
Sent from my HTC Inspire 4G using xda premium
SGF11 said:
I have flashed a lot of Roms successfully, ever since I got the inspire (over a year ago). Sure in the early stages of learning the device I had some boot loops, flashes that didn't take, or just random items.
However, as time has past I have noticed a problem when it comes to signal.
When I flash a Rom I always use the recommended radio, and ril combo that is suggested, however, I flash all available radios for our device, to make sure I have the right one for my area. (Mississippi, Alabama, and Louisiana)
I have a device that doesn't like overclocking, past 1.2 normally, no matter the Rom or kernal.
So I keep the device a hair over 1G, for stability.
Now to my question.
When I flash GB with sense 2.1, I get the best signal, and GPS lock of any build.
When I flash GB with sense 3.0, the signal drops some, but still ok.
When I flash GB with sense 3.5, the signal goes away. (I know some Roms have a glitch in the display) however I totally lose signal, where I had full service with the above.
My question is? Is there a way to pull the radio set up from GB 2.1 and align it with GB 3.0, GB 3.5 or even ICS?
Or is this based off the RUU that the Rom is based off of?
The Rom that gives me the best radio and GPS is Rumrunner 4.0, and the worst is any sensation port.
I have found a lot of stable, clean, and fast Roms that I like, however, I always have to return to a GB 2.1 Rom, because of signal issues.
Any insight on this would be awesome!!
"This has occured on multiple devices I have rooted, and flashed for others, so I know it is not just my device."
Sent from my HTC Inspire 4G using xda premium
Click to expand...
Click to collapse
What are you using to measure signal strength? If you are counting bars, each rom calculates them slightly different, only creating the illusion of different strength levels. Changing radios and rils often also isnt going to help you gain much. ive never seen a signal strength different between roms but i also have mine set to show -dbm so i know actual signal. Me personally, im using my gb ota radio as its given me the best signal retention out of the ones ive tried.
By the way, recommended radio ril that rom devs suggest is simply what they use on their device. They state this because this is the combination they know for 100% that it works. You are free to use whatever radio you want. and with sense roms flash the respective ril. aosp/aokp roms, do not flash ril (it will cause modem to not work until a reflash)
Which modems work with ICS on the Infuse? I read a post saying they all do, but then I tried flashing a couple older modems and they just flat out did not work at all, so I went back to the newer UCKL3 or such, and they seem to work fine.
Willing to sacrifice battery life for some better reception, any suggestions on which modem to try?
from what I read here in the forums, reception with different modem's will vary by your location, some work better in a particular area than others do.
I've used UCKI3, UCKL2, UCLB1, all with no problems
Upgrading firmware question
I have a samsung GalaxyS4G from T-Mobile,
Model # SGH-T959V
Firmware 2..3.6
Baseband Ver. T959VUVKJ6
Kernal 2.6.35.7-T959VUVKJ6-CL694130
Build# Gingerbread.VUVKJ6
3 days ago I was finally able to upgrade to this 2.3.6, prior to that I had only 2.2.1.
I was able to upgrade with Kies Mini thanks to Samsung support.
I contacted Samsung Support Friday asking if I could now upgrade again, I was given the standard answer that I always got when asking about upgrading from 2.2.1, "There is no upgrade for that phone" Just lucky I finally reached a agent at Samsung that had the knowledge or at least the willingness to help or I would still be stuck with Froyo 2.2.1.
I have rooted the phone with Kingo Root and it now shows the phone is rooted.
I am not looking for the sky but would like to at least up grade to Jellybean if not more.
System Storage Used 296 MB, 219 MB free. SD CARD has 130MB used ,839 MB free
Any suggestions?
I realize this phone is OLD and most people have moved on but I have only this phone given to me by my
Son I could not afford a new phone these days.
I am just trying to make this phone as close to today's newer phones as possible.
I was also told that with FROYO 2.2.1 I would get no better then 2G wifi, and that I needed to upgrade the phone to get better wifi service, I thought Gingerbread 2.3.6 was the answer but I only get on occasion 3G and have yet to get 4G LTE although I have a tower less then 2 miles from my house.
If anyone has some suggestions as to what is the best firmware this phone can handle it would be appreciated if you reply.
Hey man.
The only recent official firmware for this phone is 2.3.6. If you want to have Jelly Bean, then you will have to get a custom recovery and flash a custom Jelly Bean ROM.
Wish39 said:
Hey man.
The only recent official firmware for this phone is 2.3.6. If you want to have Jelly Bean, then you will have to get a custom recovery and flash a custom Jelly Bean ROM.
Click to expand...
Click to collapse
YES I understand that is the official update, I am trying to get some input as to what version of Jellybean or ? would be good for this phone without killing speed.
Any suggestions Please
My biggest reason for upgrading is I only have 2G service with FROYO and most always with Gingerbread as well, I was told by T-Mobile I would not get any better then 2G with FROYO but I should get 4G LTE with Gingerbread 2.3.6 but I have not gotten even close to that and still drop signal a lot.
Well then you can search up the Jelly Bean ROMS that are floating around. I don't know which one is the best, since I haven't flashed those yet.
I have been searching for a rom but seems that this phone has very little support, yes it is 4 years old and only sole thru T-Mobile(as far as I know) but I was hoping some one with a lot more experience then me would have some suggestions on a Jellybean Rom or higher that would be appropriate for this phone.
Please if there is anyone here that may have some suggestions as to a better rom then Gingerbread, although Gingerbread is a vast improvement over FROYO2.2.1.
My main concern as I said before is getting better data service then 2G, I was told that Gingerbread would give me 4Glte but that has not happened even though I am only 2 miles from a T-Mobile tower, T-Mobile has said that this tower does serve 4Glte.
Is there an app that will improve my ability to get a better signal, I read somewhere about having to upgrade the phone's wifi ? to receive 4Glte ?
1: go to settings and choose LTE, if not possible, no 4g
2: if your phone can'tuse 4g (hardware) then the OS changes Nothing
Sent from my LG-D722 using XDA Free mobile app while walking
As a former developer/tester and long time user of this phone (I still have one to play with) it is not capable of LTE. The best you will get is 4G. I got 4G even with official 2.3.6. So if your not you may need to have your SIM upgraded at the store. The best Rom I've used is slim which is 4.0.4. I didn't like the stock launcher so I flashed Xperia launcher 2.06b and it was great. If you're stuck on having JB which is still buggy...Mirage was the most reliable. Daothanduy was the developer. Good luck searching and how this helped
Sent from my SM-G900T
I found the phone too slow to work with KitKat, but there were several solid Jellybean ROMs out there.
Read very carefully the upgrade threads and instructions as there are several low-level changes to the phone's firmware/software that are required to get off of "stock" and onto one of the KitKat ROMs. They're not "difficult" -- You just need to follow all the steps in the right order. Once you've got the right boot loader and are on an "MTD" ROM, changing between ROMs is reasonably straightforward.
Pick up a (paid) copy of TitaniumBackup Pro if you don't have one already. You'll be happy you did, even if it only provides piece of mind.
If the phone isn't rooted already, you may need "ODIN" (Windows only) or, my preference, "heimdal" to flash parts of the phone.
Anything you read about "WiFi performance sucks..." is likely only based on the visual indication of WiFi signal strength (RSSI) changing from the early releases to the custom ROMs. From what I could tell through actual throughput testing, there is no difference except for the RSSI.
It's a solid phone, though don't expect the GPS to lock reliably. There isn't a software fix for it, no matter what some claim. As far as I could tell, it was an RF-design or -execution problem. I have seen some threads suggesting some mechanical fixes for the antennas. I never pursued them so I can't comment further.
You're correct, it was only sold through T-Mobile. Official support for it was dropped like a rock when Apple won its infringement suit over Samsung. This was the phone that had all the infringement-claim boxes checked. Yep, you own a piece of patent-law history!
Samsung's source-code drops were horrendous and many of us worked to get subsequent versions of the kernel to run on the phone. As alluded to above, there were no upgrades to the proprietary binaries after the Gingerbread ROM.
I've still got one in the drawer, but it would take over three minutes to boot KitKat, so it wasn't terribly functional as a day-to-day phone.
The AMOLED screens do yellow with time. It's not your eyes
My main concern is getting better then the 2G I am presently getting, I have checked and I am getting 9 signals of different strengths I on occasion get3G bu it shows no bars during 3G and does not appear to connect during 3G.
I have up to 4G available in my area but this phone only wants to use 2G.
I did upgrade from FROYO2.2.1 to Gingerbread 2.3.6but I am thinking the modem in the phone is still the original that used FROYO.
At this point I am trying to find a upgrade or new modem software for this phone.
Any ideas?
jeffsf said:
I found the phone too slow to work with KitKat, but there were several solid Jellybean ROMs out there.
Read very carefully the upgrade threads and instructions as there are several low-level changes to the phone's firmware/software that are required to get off of "stock" and onto one of the KitKat ROMs. They're not "difficult" -- You just need to follow all the steps in the right order. Once you've got the right boot loader and are on an "MTD" ROM, changing between ROMs is reasonably straightforward.
Pick up a (paid) copy of TitaniumBackup Pro if you don't have one already. You'll be happy you did, even if it only provides piece of mind.
If the phone isn't rooted already, you may need "ODIN" (Windows only) or, my preference, "heimdal" to flash parts of the phone.
Anything you read about "WiFi performance sucks..." is likely only based on the visual indication of WiFi signal strength (RSSI) changing from the early releases to the custom ROMs. From what I could tell through actual throughput testing, there is no difference except for the RSSI.
It's a solid phone, though don't expect the GPS to lock reliably. There isn't a software fix for it, no matter what some claim. As far as I could tell, it was an RF-design or -execution problem. I have seen some threads suggesting some mechanical fixes for the antennas. I never pursued them so I can't comment further.
You're correct, it was only sold through T-Mobile. Official support for it was dropped like a rock when Apple won its infringement suit over Samsung. This was the phone that had all the infringement-claim boxes checked. Yep, you own a piece of patent-law history!
Samsung's source-code drops were horrendous and many of us worked to get subsequent versions of the kernel to run on the phone. As alluded to above, there were no upgrades to the proprietary binaries after the Gingerbread ROM.
I've still got one in the drawer, but it would take over three minutes to boot KitKat, so it wasn't terribly functional as a day-to-day phone.
The AMOLED screens do yellow with time. It's not your eyes
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Click to collapse
slo_hand2 said:
My main concern is getting better then the 2G I am presently getting, I have checked and I am getting 9 signals of different strengths I on occasion get3G bu it shows no bars during 3G and does not appear to connect during 3G.
I have up to 4G available in my area but this phone only wants to use 2G.
I did upgrade from FROYO2.2.1 to Gingerbread 2.3.6but I am thinking the modem in the phone is still the original that used FROYO.
At this point I am trying to find a upgrade or new modem software for this phone.
Any ideas?
Click to expand...
Click to collapse
This info might be old, but check out: http://forum.xda-developers.com/showthread.php?t=1192436
Thanks to @DickyG for providing that link to the available modems. There haven't been any new modems in many years.
My recommendation would be to upgrade to one of the JellyBean or potentially KitKat ROMs and use TWRP (my preference) or CW recovery to make it "safer" to flash modems. The "best" modem depends somewhat on carrier and location. I personally found the KG4 modem to have the best performance for me of the modems that supported splitting long SMS messages.
The SGS 4G supports HSPA+ (and not LTE) as it's "best" connection. There is nothing software can do to get LTE.
HSPA+ isn't bad at all. I typically got 3-10 Mbps on T-Mobile in the San Francisco Bay area. Once you have decent bandwidth, the most important thing for "responsiveness" is latency. See, for example http://www.dslreports.com/speedtest and http://www.bufferbloat.net/ A higher-bandwidth connection doesn't help that and, in some cases, the higher-bandwidth connections seem slower as they have more latency (often due to the carrier's buffering).
While some "stock" ROMs (and a few custom ones) have been "tweaked" to show "4G" in the UI, it is just cosmetic.
I am trying to get a better signal then 2G, I ran some test and have 9 signals available, but when I change off automatic to get 3G I get 3G but no bars. there are towers within 2 miles of me and I know for a fact that at least one maybe more are T-Mobile towers.
his has been a very long confusing journey it took me several months of contacting a agent at T-Mobile support before one took the time to give me the Kies mini to upgrade to Gingerbread, others would say there are "NO UPGRADES AVAILABLE FOR FROYO 2.2.1, most were to lazy or not knowledgeable enough to find the answer for me., I have tried but ever since that one agent I have not had any success with support other then here.
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Click to collapse
T-Mobile isn't going to help you any here as all they have are the "official" releases which stopped with Gingerbread several years ago.
You'll have to read how to flash a phone with a custom ROM if you want anything more than what they provided years ago.
I much prefer Heimdal to Odin for reliable flashing of phones. Some swear by Odin, I swear at it, especially as it is Windows only.
I'd suggest backing up all your data with TitaniumBackup Pro, as well as a "nandroid" (TWRP or CW recovery) backup. The read all the instructions twice or three times until you understand them and flash a custom ROM, including a matching kernel. I'd suggest a JellyBean ROM to start with. I'd also suggest moving to an "MTD" ROM and kernel to start as you'll end up there anyways (most of the more recent ROMs and kernels built for the SGS 4G were MTD).
You can then very, very carefully and selectively restore your TitaniumBackup data, making sure to set "Migrate system data." Restoring across major OS versions is possible, but you have to be careful how you do it. I'd make sure I understood how TitaniumBackup Pro works and the suggestions from them and others on how to restore data.
In your opinion does jellybean or Kitkat have a better modem?
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Click to collapse
All the modems for the SGS 4G are from the "official" ROMs from Samsung/T-Mobile/Wind for Froyo or Gingerbread.
There is no such thing as a "JellyBean modem" or "KitKat modem."