Modem, Kernel, Rom question. - Samsung Epic 4G Touch

Hey,
I'm looking for some clarification. I see a number of different labels associated with different roms, kernels, and modems; EK02, EL29, so on. Are these the numbers that come from Samsung whenever they do an update? For example, when a modem is labelled as EL26 does that mean it was packaged with the EL26 update from Samsung? If a Rom is labelled EL29 does that mean it's a repackaged version of the Samsung EL29 release or does it just use a version of the kernel from the EL29 update or both? Does it matter if one mixes and matches? Can I flash a 26 kernel and a 13 modem to a 29 rom? Is it recommended to have all 3 be versions of the same update?
Thanks!
Sent from my SPH-D710 using xda premium

Whatever version # you see came from Samsung.
As a simplification, each update comes with Modem, Kernel, and ROM.
Theoretically matching versions of all three would be best because that was what was tested by Samsung/Sprint, but in practice, with what has been release so far, we have found mixing and matching works ok and may produce better (or worse) results depending on your situation and needs.

Related

[Q] EB30 kernel vs EG30 kernel

Does anyone have information on the differences between these two kernels? Both have been listed at different times as the Stock kernel pulled from an non-rooted E4GT?
skribbles505 said:
Does anyone have information on the differences between these two kernels? Both have been listed at different times as the Stock kernel pulled from an non-rooted E4GT?
Click to expand...
Click to collapse
I think it's the same kernel: EG30
I downloaded the filenamed EB30, but the kernel within was EG30.
I think it was a matter of a typo in the kernel filename that was initially uploaded.
Ok, that's what I was thinking since I couldn't find any other reference for EB30. Thanks.
5 Months
can somebody verify this please?
i've seen evidence that suggests its a typo as well, but i am not confident enough to believe my gut feeling

A Few Questions about ICS Roms...

Hello everyone,
I want to update my phone to an ICS rom, but I am a little confused about the terminology and all the options available. I have a few questions:
1. What is the direction that the development is taking in terms of ICS roms? I mean, I am not really sure what "FC07" means and why it would be better than a different combination of letters and numbers.
In layman's terms, when will we see an ICS rom that could be considered "final" or free of bugs and on par with what Galaxy Nexus users have?
With that said, what is the best ICS rom today?
2. I want to customize my phone for faster internet speeds. I was considering switching to Verizon simply for faster network speeds, but the hassle might not be worth it. What tips do you have to help me achieve faster speeds and more reliable coverage on this phone?
Are there specific modems you would recommend for faster internet speeds?
What about custom PRLs? I was told that you can use a custom PRL to force Verizon 3g speeds on your phone, at risk of your contract being terminated.
Is it true that if I did use a Verizon custom PRL I would achieve speeds identical to if I had a Galaxy Nexus on Verizon?
Anyway, what combination of modem/custom PRL would you suggest to achieve the best coverage and fastest speeds on the E4GT?
3. I have heard a lot about changing the resolution of the Epic 4g Touch to simulate a 720p display, making the icons smaller. Would you recommend I do this? Does this work with the ICS roms?
4. A while back there were tweaks to improve the quality of the camera, especially for recording movies. I remember a hack for the international Galaxy S2 that did this. I think there was one for the E4GT as well.
Could you refer me to any camera tweaks to increase bitrate and so forth?
5. And finally, which kernel and overclocking apps should I use?
Thanks for taking my questions.
ICS ROMs
Having followed the ICS ROM discussion non-stop I hope I can answer the questions on that part. I'll leave the other questions up to smarter (and more experienced) people than me!
CW (common wisdom) suggests ROM IDs are:
F - Seems to indicate year - in particular, 2012.
May also indicate ICS as seems first introduced around same time.
C - Seems to indicate build month. (A-Jan, B-Feb, etc.)
07 - Seems to indicate build day. (3/7/2012)
FC07 is reported by many to be quite stable but I haven't heard anyone sign off an ICS build to be a daily use ROM. Calkulin's ROMs seem to be quite popular as well - he just released a new FC14 build.
There's reviews for most recent builds on YouTube if you want to get an idea of what is changed. Might help you before you decide whether to jump on ICS now or wait.
As for when one will go OTA - again, CW suggests at least 10 days after a build is approved by Sprint. (Found it in another thread, just don't remember which one.)
If you're thinking about going to ICS, please keep an eye on the thread linked below and follow the instructions when flashing ROMs. There are a lot of bricks going on - reading this may save your phone (and you some $$$)
http://forum.xda-developers.com/showthread.php?t=1525495
Hope this helps!
To answer your question #1....Any of the leaked roms ie: FC07, FC14, are very stable and ready for everyday use for most. Also any of the Roms based off of those rooms like calks, Mijjz, and others. However, the best ICS from out there right now is aokp. Its almost stable with just a few minor bugs. It gives you a TON OF OPTIONS! Do be careful, lots of bricks happening!
Regarding question #2, in ,y experience, hacked Verizon prls sort of iffy. I've tried 11115 with roam control and half of the time it won't connect to 3g and when it does the speeds are mediocre.
Hope this helps! Oh also when going back to gingerbread from ics, USE ODIN TO FLASH AN EL29 TAR! Or else YOU WILL BRICK!!!!!!!
Hey guys. Thanks for all the info.
I just came from a G2x, and this process is way different.
I used Odin to root stock EL29, and then installed Rogue with the one-click. Right?
Now can I flash an EL29 ROM through Rogue? Can I also flash a different modem through Rogue, (i.e. FC07) and a "matching" ROM? And if I follow correctly, after that, if I want to change it, I have to Odin back to EL29 first?
Just trying to catch on to the different terminology.
[signature]
[signature]
Beekersguy said:
Hey guys. Thanks for all the info.
I just came from a G2x, and this process is way different.
I used Odin to root stock EL29, and then installed Rogue with the one-click. Right?
Click to expand...
Click to collapse
Good so far.
Beekersguy said:
Now can I flash an EL29 ROM through Rogue? Can I also flash a different modem through Rogue, (i.e. FC07) and a "matching" ROM? And if I follow correctly, after that, if I want to change it, I have to Odin back to EL29 first?
Click to expand...
Click to collapse
Think you have a good handle on it. General rule of thumb is:
GB Kernel - CWM/CWMT/ODIN OK
ICS Kernel - Only use ODIN. CWM/CWMT will likely brick at wipe operation.
You might want to read over this thread if you haven't already:
http://forum.xda-developers.com/showthread.php?t=1525495
Good luck!
So, if I understand correctly, I can flash different EL versions through Rogue recovery, but if I want to jump on ICS, I need to use Odin.
[signature]
Actually:
From EL you can flash anything - ODIN/CWM
From ICS/CM9 you need to flash using ODIN - even if it's just to get back to EL and then flash again using CWM.
Hope this clears it up.
garwynn said:
Actually:
From EL you can flash anything - ODIN/CWM
From ICS/CM9 you need to flash using ODIN - even if it's just to get back to EL and then flash again using CWM.
Hope this clears it up.
Click to expand...
Click to collapse
Dude, thank you sooo much.
I just got this phone yesterday, and I've read a TON of stuff in this forum, and I just wanted to verify that I was generally on-track with flashing methodology.
I think I'll try a few EL29 ROMs for now.

[Q] Maybe someone would be willing to steer me in the right direction

Lately I been flashing ROMs left, and right. Trying to find that ROM that give a sweet performance, keeps a little of the Gapps, and none of the bloatware; as well as I like the interface. I am looking at Calkulin's E4GT 2 v1.6 [ ICS l FE22 l Tweaked l Battery Saver Script, and the Calkulin bare ROM converter. Currently I am running Wicked Sensations v 1.4 with modem FF18, and ICS 4.0.4. Here's where I am needing the help. Since technology moves faster then we can blink, and all the leaks that come out, or even official OTA. To update this forum can be daunting. So what is the latest in modem/kernel? Is the FE22 newer then the FF18? I know each modem will run differently on each phone, but if the FE22 is newer I am will to give it a test run to find out how it works on my phone. Right now as it is I tested the stock EL29, the FB21 (I think that's the number), and the FF18. The FF18 have uped my 5G link speed to 65Mbps. Stock was only 52Mbps, it increased my 4G pick up. Not so much the speed of 4G; as the range. Stronger signal one can say. Anyway Thank for reading, and your help.
what is a build number and what does it mean? The build number tells you when it was released.
Example:
EG30 (Gingerbread 2.3.4) Was released/shipped 07-30-2011
EL13 (Gingerbread 2.3.6) released 12-13-2011/ EL29 (Gingerbread 2.3.6) released 12-29-2011
[E=year – 2011 L=month – December and 13=Date]
So Build FF18 is an Ice Cream Sandwich build of Android – 4.0.4. Built June 18, 2012]
Same numbering is used for modems. So that last one we have is FF18
So if the E=year; How does the L determine month? I under that the first F of the FF build is 2012, but what would the second F be in terms of month? If I go to the Calkulin bare ROM then I should be able to install the FF18 modem correct? Would it be better to install through CWM, or Odin?
Second F is for June... also your statement is a little confusing but I would suggest you using odin to install modems and kernels
---------- Post added at 08:58 PM ---------- Previous post was at 08:56 PM ----------
GT780DXR said:
Lately I been flashing ROMs left, and right. Trying to find that ROM that give a sweet performance, keeps a little of the Gapps, and none of the bloatware; as well as I like the interface. I am looking at Calkulin's E4GT 2 v1.6 [ ICS l FE22 l Tweaked l Battery Saver Script, and the Calkulin bare ROM converter. Currently I am running Wicked Sensations v 1.4 with modem FF18, and ICS 4.0.4. Here's where I am needing the help. Since technology moves faster then we can blink, and all the leaks that come out, or even official OTA. To update this forum can be daunting. So what is the latest in modem/kernel? Is the FE22 newer then the FF18? I know each modem will run differently on each phone, but if the FE22 is newer I am will to give it a test run to find out how it works on my phone. Right now as it is I tested the stock EL29, the FB21 (I think that's the number), and the FF18. The FF18 have uped my 5G link speed to 65Mbps. Stock was only 52Mbps, it increased my 4G pick up. Not so much the speed of 4G; as the range. Stronger signal one can say. Anyway Thank for reading, and your help.
Click to expand...
Click to collapse
Try and break up into paragraphs next time makes it a little easier to figure out but the info you need is in the development section
GT780DXR said:
So if the E=year; How does the L determine month? I under that the first F of the FF build is 2012, but what would the second F be in terms of month? If I go to the Calkulin bare ROM then I should be able to install the FF18 modem correct? Would it be better to install through CWM, or Odin?
Click to expand...
Click to collapse
It is just there system of labeling.
A=January
B=February
C=March
D=April
Etc..

[Q]regarding modem version and build number

i just got the samsung sg3 and out of the box comes with LI3 which i understand as the newest modem out for sprint. i was wondering if rom builds were dependent on the type of modem you have as well. i guess my biggest question is if i can flash the CM10 nightly builds even though i have LI3 or do i need to go to a older modem such as LG8? Thanks
rjbguatemala said:
i just got the samsung sg3 and out of the box comes with LI3 which i understand as the newest modem out for sprint. i was wondering if rom builds were dependent on the type of modem you have as well. i guess my biggest question is if i can flash the CM10 nightly builds even though i have LI3 or do i need to go to a older modem such as LG8? Thanks
Click to expand...
Click to collapse
You can use LI3, LG8, LJ7.......just about ANY modem/baseband you want........they are all independent of the ROM. It's one of those YMMV things so see how it works with LI3.....maybe in your area you get ROCKING reception using that modem.....if not, then try another one.

Kernels and WiFi

Why do some kernels kill WiFi when flashed. Or is it just a mobile Odin thing
I have also tried to replace the kernel and rezip same issue
Sent from my SPH-L710 using xda app-developers app
Kernels control the hardware functionality. They specify higher-level functions so that the software (Android OS) can properly interact with the hardware. The kernel is what contains the drivers and such that you need for your different radios to work (mobile network [LTE or 3G] and wifi), as well as things like power management and proper boot/shutdown sequences. If its not implemented in the kernel, theres no way any programs can access the higher level functions to get the wifi going, or to get 4G going.
This is also why it's difficult for some devices to get working 4G on android versions past what is officially supported because the 4G drivers have to be written from scratch into the kernel, and they change from version to version. Now its not impossible, but very difficult
Hope that answers your question :thumbup:
CNexus said:
This is also why it's difficult for some devices to get working 4G on android versions past what is officially supported because the 4G drivers have to be written from scratch into the kernel, and they change from version to version. Now its not impossible, but very difficult
Click to expand...
Click to collapse
Knowing this, does that mean TW kernels are better for writing things like 4G? I don't know how to explain my question, I guess I'm asking if TW kernels are more 'compatible' since they're just stock modifications.
OK the reason I'm asking is because of my port of pure aosp the stock CM kernel will not do WiFi but any other kernel will Lean BMS KT
Why work with one ROM but not another.
Sent from my SPH-L710 using xda app-developers app
sevenpioverthree said:
Knowing this, does that mean TW kernels are better for writing things like 4G? I don't know how to explain my question, I guess I'm asking if TW kernels are more 'compatible' since they're just stock modifications.
Click to expand...
Click to collapse
No, what I mean is that once its officially released (for this phone it would be Touchwiz), then that can be incorporated into aosp kernels made for that official version for a specific phone. Both (theoretically) run it just as well, theres no compatibility issues in favor or either. But of course, since TW kernels have been engineered for this phone while AOSP has not, AOSP kernels would require a little more hacking to get it to work, hence possibly degrading the quality of 4G or other radios
bthorne79 said:
OK the reason I'm asking is because of my port of pure aosp the stock CM kernel will not do WiFi but any other kernel will Lean BMS KT
Why work with one ROM but not another.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
My guess would be that the paths for different things arent what its expecting, you would have to split the boot.img and diff the files to find out for sure though
Nice, thanks CNexus, you da man
Wifi broken
So, on a Sprint Galaxy S3, after rooting first with the unified toolkit and finding that my wifi no longer works, I went back to the stock version and found I still had no wifi. Figuring that it's better to be rooted so I can tweak things, I rerooted using QBKing's method (much easier, by the way). Wifi is still broken. Is there not a fix for this yet?
I've got:
Model#
SPH-L710
Android Version:
4.1.1
Baseband Version:
L710VPBLJ7
Kernel version:
3.0.31-CL616748
[email protected] #1
SMP PREEMPT Sat Dec 1 23:25:55 KST 2012
Build#:
JRO03L.L710VPBLJ7
Hardware Version:
L710.14
Because I'm a quiet one, I'm not allowed to comment in the forum that originally started this and I don't have 10 posts yet. So, here I am - sort of on topic and sort of off topic. But the bottom line is, I need to fix wifi since I'm *always* in roaming and connect to the world through my wifi.
So.
Ideas?? Please.
Thanks!
~Jayme
jaymethunt said:
So.
Ideas?? Please.
Thanks!
~Jayme
Click to expand...
Click to collapse
When you rooted, did you install a custom recovery (CWM or TWRP)? Turn off your phone and boot into recovery and see if it's either of those.
You're currently on an out-of-date system. I don't think that's why you don't have Wifi, but I thik it'd be best if you try the latest and greatest.
If you do have a custom recovery, you can flash the stock rooted rom by Freeza. If you don't have a custom recovery, you'd have to re-root and make sure to follow the instructions (including pulling the battery).
If you need help with how to flash a Rom in a custom Recovery, I wrote this up for a thread earlier.
Hope you get your wifi working.
I guess I'm not sure how to answer your questions. I do have ClockWorkMod (that is what CWM means, right?) on right now, yes.
That page you recommended is over-the-top. There's so many choices, I don't know which one to make! I think I want Odex, just because I'm not a developer at this stage. Because I'm starting out with CWM, do I want this one or that one?
MD5: A89894F653099D158C8C459F2B7F656E
MD5: 5C24F1174C40E9B878C7D9BEA75DBFAF
Or am I just completely off target?
Thanks for replying and I hope my wifi gets fixed, too.
jaymethunt said:
I guess I'm not sure how to answer your questions. I do have ClockWorkMod (that is what CWM means, right?) on right now, yes.
That page you recommended is over-the-top. There's so many choices, I don't know which one to make! I think I want Odex, just because I'm not a developer at this stage. Because I'm starting out with CWM, do I want this one or that one?
MD5: A89894F653099D158C8C459F2B7F656E
MD5: 5C24F1174C40E9B878C7D9BEA75DBFAF
Or am I just completely off target?
Thanks for replying and I hope my wifi gets fixed, too.
Click to expand...
Click to collapse
Yes, CWM is ClockWorkMod.
I'd recommend DeOdex Rom, because if it doesn't work, you can still flash mods onto it that might help you out (without reflashing a whole new Rom). If you install the Odex version, you wouldn't be able to flash most mods out there.
I haven't messed around with the "Leaked" build, so I'd personally recommend the latest official, which is the MB1. The link you should be looking for is:
DeOdex:
Sprint Touchwiz Jelly Bean 4.1.2 L710VPBMB1 | Mirror | Mirror 2 (Not yet active)
MD5: 37E1CCCB3A30959C64DF238D0BD2B23C
If you download this file and install it per my previous instructions (that I linked to, make sure to do a Nandroid Backup and to wipe the /system in CWM), Wi-Fi should be working. If it doesn't I might have another thing I'd want you to try, but I'm fairly certain this will do the trick.
THAT worked beautifully. I guess I just needed jellybean. lol. So, I'm rooted, on the latest and greatest, AND I have Wifi! Yae!
Thanks so much for your help!
~Jayme

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