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Hello,
Sorry for this very basic question, I am just wondering what is the difference between a Kernel and a ROM? I see in the development forum there are lots of new Kernels, what are these actually optimizing except underclocking or undervolting (understand that terminology). I am also wondering if the Kernels are specific for the original Nexus One 2.1 Android or can you install for example Modaco or Cyan ROM and then a different random Kernel?
Thanks!
To my understanding, a kernel is what directly interacts with the hardware. Every OS has this, but it's more customizable on our phones since it's based on Linux. The Rom contains the OS itself, and the software and file structure therein. The kernel even can tell the OS how fast the processor goes and how much juice to use from the battery.
Hope that makes sense, as I'm no expert. You can mix and match the two as far as I know. I've mixed them, anyway.
Halorin,
Based on what you said, with my stock vibrant ROM 2.1 JI6 update, it is possible to change the kernel or install another kernel (like the CM kernel)?
tomasitoc said:
Halorin,
Based on what you said, with my stock vibrant ROM 2.1 JI6 update, it is possible to change the kernel or install another kernel (like the CM kernel)?
Click to expand...
Click to collapse
That is really a question better suited to the rom 's development thread, but in general yes you can flash a different kernel. Some kernel/rom combinations work better than others, but you really wont know until you try. Get comfortable with nandroid backups and start trying out different kernel combinations until you find one you like.
Usually most custom roms will include a kernel but they usually have tweaks like coding for 720p, oc, and audio tweaks and what not. Alsways do a nandroid back up and start exploring. When flashing kernels always wipe, I think their are exceptions but its best to wipe just in case. Browse XDA, download a kernel from your phone browser, rom manager install from SD, should be in your downloads folder, backup and wipe, repeat until your phone does what you want.
Sent from my Nexus One using XDA App
which is the better to install???
Thank you your post..
but i can't understand clearly.
so.,
which one is better to install NewRom / Kernal. for android phones.
Neither one is better it just depends on what you want to do.
If you want to totally change over your phone to look and function differently then you need to flash a ROM if you just want to keep the same look but want to enable lets say overclocking then flash an overclocked kernel. If it has to do with the hardware mostly then it's probably something that the kernel can change. Although like mentioned above if you flash a ROM most of the time it will come with a custom kernel.
Dude Random21 said:
Neither one is better it just depends on what you want to do.
If you want to totally change over your phone to look and function differently then you need to flash a ROM if you just want to keep the same look but want to enable lets say overclocking then flash an overclocked kernel. If it has to do with the hardware mostly then it's probably something that the kernel can change. Although like mentioned above if you flash a ROM most of the time it will come with a custom kernel.
Click to expand...
Click to collapse
What he said.
ROMs and kernels are two separate things that have two separate functions. Neither is better than the other, but they do complement each other.
Seshu9899 said:
Thank you your post..
but i can't understand clearly.
so.,
which one is better to install NewRom / Kernal. for android phones.
Click to expand...
Click to collapse
I know both Dude Random21 and codesplice have gone into this, but to try and give a bit more info...
The kernel is kinda like the nervous system of the body. It directly interacts with the hardware (which is how it is able to adjust CPU speed) and it is what allows the ROM to function.
The ROM is the rest of the body. Every other aspect of the phone. In fact, most ROMs include custom kernels. Various ROMs give you various features/enhancements/bugfixes. You will probably notice the biggest change in your phone if you load a custom ROM. Most people load the custom kernels to help with battery life as a lot of them allow you to lower the phones minimum processing speed from 245Mhz to 128MHz.
The ROM can change so many different aspects of how the phone works. There is CyanogenMod which is based off of stock Android with a lot of tweaks, bugfixes, and new features added. There is also MIUI, which is similar to the iOS style (not the same, but much closer than stock Android), and then there are a ton others out there.
Then which Rom is best for my samsung galaxy s???
so i am using froyo.jpjpg on my galaxys.
i want to flash new Rom with upgaraded to gingerbread.
can i flash only rom../ kernal also.
which is best Rom for samsung galaxys.
cynogenmod, miui, .?????
battery drain is very fast now ian running rom/kernal.
Start by going to the forum for your phone.
Sent from my Nexus One using XDA App
thank you...
i Start the post from samsung galaxy s..
Seshu9899 said:
thank you...
i Start the post from samsung galaxy s..
Click to expand...
Click to collapse
your welcomed
Nandbackup + Rom & Kernel
One question: when I do a backup with CWM, it is the Nandroid backup you talk about, correct...? Same thing? So, if I do a backup with CWM, it's a backup only of the ROM, or also the stock Kernel...? Imagine that I do a Rom (GingerDX for example), and flash with a custom Kernel.... If things go bad and I do a restore from my backup (stock) CWM, what do I restore? Rom, or Rom + (stock) Kernel...?
Yes, a backup that is done in ClockworkMod (or Amon_RA) is considered a nandroid backup. And this takes a complete snapshot of your system. Your ROM, your kernel, your apps and your data are all inlcuded. The only thing that isn't included is the fat partition on your sdcard. So if things go bad and you restore your nandroid backup, it will go back to however it was when you made the backup.
thanks a lot. reading this thread clear up a lot of things
Hi!
I am currently running Lite'ning ROM 6.1. XXKH3 Kernel version 2.6.35.11-ninphetamine-2.0.5+ [email protected] #20 on SGSII. Phew.
I've tried a lot of ROMS including MIUI, villain, galmetMIUI ICS version . I like Lite'ning ROM because it gave me the least (virtually Nil) problems (FCs/ reboots) and has almost all the features I need (TV-out that's missing from MIUI, good camera with panorama mode, Recording mode in phone). However I miss the CIFS feature. Is it because the kernel does not support it? Can I get CIFS support if I flash another kernel? Any suggesstions on which Kernel should I flash? I realise that this ROM is pretty old now so Can I get additional features with a newer Kernel.
codesplice said:
What he said.
ROMs and kernels are two separate things that have two separate functions. Neither is better than the other, but they do complement each other.
Click to expand...
Click to collapse
That made everything clear. Thanks man. I'm new to the xda but already flashed a new rom that overclocked my CPU to 1.5 and my HTC Sensation 4G Is running so much better right now. However I wish i knew how to thank people... because i see the thanks meter but cannot find where to thank from.
radoslav.trahanov said:
That made everything clear. Thanks man. I'm new to the xda but already flashed a new rom that overclocked my CPU to 1.5 and my HTC Sensation 4G Is running so much better right now. However I wish i knew how to thank people... because i see the thanks meter but cannot find where to thank from.
Click to expand...
Click to collapse
The rom didn't overclock your phone. The kernel did. READ. You came to the MT4GS forum starting up a storm for people not giving you a direct link to the regular MT4G. How is it you cant find the freakin' "thanks" button? THERE'S A FREAKIN' THANKS BUTTON IN EVERY FREAKIN' POST. OPEN YOUR FREAKIN' EYES.
Sori m jst new here..jst b0ught my f0ne 2 m0nths ago. Flashed r0m: gingercrime ITA, flashed kernel: ver 2.6.35.14 v6. And iv overclock my fone 245-710Mhz, smartass. fone: lg optimus one, running on gingerbread 2.3.3
Many thanx xda developers..!!
I'm looking for a gingerbread install for a bell I9000-m basically just need to make sure that the swype keyboard is fairly decent or similar to the bell one and whichever replacement is found here.
Im guessing I'll need a link to a stock modem driver but I've never done this before with much success besides just kindof bumbeling through a bit.
Let me know anything that could help in my quest here.
I would like to find some links to a good set of files for this update. I've read at many places that for bell you must ask for specific files for this task as it must be more complicated for the bell setup for some reason.
Even a Nexus S firmware if port-able to this device would be fine.
chamunks said:
I'm looking for a gingerbread install for a bell I9000-m basically just need to make sure that the swype keyboard is fairly decent or similar to the bell one and whichever replacement is found here.
Click to expand...
Click to collapse
Any firmware for the i9000 works on the i9000m. There are plenty of threads in the development section with gb roms. Just download the KC1 modem for either Odin or CWM and flash that - I won't get into details, there are a bazillion threads discussing how to do this properly on the i9000m
chamunks said:
Let me know anything that could help in my quest here.
Click to expand...
Click to collapse
http://forum.xda-developers.com/forumdisplay.php?f=656&nojs=1#goto_forumsearch
chamunks said:
I would like to find some links to a good set of files for this update. I've read at many places that for bell you must ask for specific files for this task as it must be more complicated for the bell setup for some reason.
Click to expand...
Click to collapse
You need to stop reading whatever forums you're reading, and stick to this one. There are no specific files, and it is no more complicated than any other i9000.
chamunks said:
Even a Nexus S firmware if port-able to this device would be fine.
Click to expand...
Click to collapse
Then use Cyanogenmod. Again, all of these are in the development subforum.
You mention Cyanogenmod but wouldnt that be froyo?
I didnt really mean just link me to the specific forum subgroup I was hoping for some more specific direction I realize my question wasn't that clear i suppose. Anyways I've basically just had trouble changing the firmware on this device before and I really dont want to end up bricking it with a bad firmware flash.
Basically a good starting point example link would be fantastic I will do some more research and if i manage to do this myself I will post my findings just to close the thread.
Flash JVH and then flash KC1 modem, done.
I also dont want to install a beta gingerbread release if at all avoidable and mostly a vanilla or highly reccomended third party custom would be fine too.
JVH is official release in parts of Europe. I'm with Bell, running JVH with KC1 modem since its release and absolutely no issues.
chamunks said:
You mention Cyanogenmod but wouldnt that be froyo?
Click to expand...
Click to collapse
No, CM7 is 2.3.4 which is Gingerbread. Cyanogenmod 6 (which was froyo afaik) never really came to be on the i9000.
chamunks said:
I didnt really mean just link me to the specific forum subgroup I was hoping for some more specific direction I realize my question wasn't that clear i suppose. Anyways I've basically just had trouble changing the firmware on this device before and I really dont want to end up bricking it with a bad firmware flash.
Click to expand...
Click to collapse
There isn't really anything specific for the i9000m. Really, its just a matter of picking a rom and following the flashing instructions. If you're flashing a stock release (like JVH lets say), use Odin, flash the tarball with update bootloader checked and once thats done, flash an appropriate modem for Bell (for 850mhz), like KC1 that I find works very well.
If you're flashing a cooked rom, like those in the development subforum, then you'd flash something like JVH, flash an appropriate kernel with clockworkmod (I prefer speedmod, but there are others), then you'd install the cooked rom through cwm recovery.
chamunks said:
Basically a good starting point example link would be fantastic I will do some more research and if i manage to do this myself I will post my findings just to close the thread.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1011901
That thread should have all the information you need on flashing JVH along with screenshots and links to the roms.
chamunks said:
I also dont want to install a beta gingerbread release if at all avoidable and mostly a vanilla or highly reccomended third party custom would be fine too.
Click to expand...
Click to collapse
As others have said, JVH is an official release for a lot of European carriers. It will work fine on the i9000m. I was running JVH + KC1 Modem for a while before switching to the latest Cyanogenmod nightly (which works absolutely fantastic now).
If you're looking for an official Bell Gingerbread release.... you'll just have to keep waiting. Bell is slower than the second coming. Just keep a full KC1 or JL2 (with bootloaders) around so you can flash back to stock if you need be.
Also, you said you had trouble flashing before. I'd suggest following that link in my post above, and if you get stuck, come back and we can step you through.
And finally, you really can't brick you phone as long as you are able to access download mode and 3 button recovery. Absolutely make sure you can access these two modes before flashing anything.
I have actually had issues getting into recovery mode sometimes but not usually, but have no problem entering download mode. I think at one point I wound up with upload mode... which doesent seem to be documented... But dont quote me on that one as it was a while ago (after searching high and low on my NAS I cant find the photo i took sorry). I have actually had to send this phone off to bell to get them to fix it twice now.
Once due to my inability to do this properly without making a forum post asking these question and another due to a bad Kies update sending my phone into a boot loop.
So you say Cyanogen nightly works well im thinking I might give that a shot as im sure there are good reasons why you would want to use cyanogen over another release. Im just hoping for no weird Telco specific crap on my phone unless its Bell specific if i must have even that.
Would I go into the ROM list thread for the cyanogenmod nightly? http://goo.gl/IBbEm
Which leads me to this? http://goo.gl/b5UwG
or is there a better way to obtain CM7? Also what would be a good location to try and find my modem driver (KC1)?
I'm sorry to spam questions here but one final one. Would there be a good boot loader that I should strive for, if any?
SaneinOne said:
JVH is official release in parts of Europe. I'm with Bell, running JVH with KC1 modem since its release and absolutely no issues.
Click to expand...
Click to collapse
I am running the above now. I was on Darky 9.5, then upgraded yesterday to Ficeto JVB, Dark Core 2.2 and Darky's v10 RC6. Then flashed Dark Core 2.3.
I then flashed KC1 modem this morning.
Running great and loving the rom so far.. its a base rom, so not a lot of features in it but at least i can customize it to how i like it so far.
I've downloaded this file I9000UGKC1 ## 512.PIT 2.2 2011 March from samfirmwares I'm hoping it works out well for giving me the modem driver.
And
Gingerbread 2.3.3: XWJVH from http://goo.gl/AEYzr to get a gingerbread release with a boot loader.
I will now look for a copy of odin hopefully it doesn't matter which version I get but I've noticed there is allot of fuzz when it comes to odin versions or even where to obtain it even. I want to obtain it from a legitimate source but it seems as though there is no specific location as to where to get it.
At some point I would like to try Cyanogen as everyone holds it in rather high regard though I'm not really sure what the benefits would be.
Some roms on here come with odin. You can also get it from samfirmware. The development thread is where you will find all information for each release. There's a few sources for cwm flashable modems. Odin isn't bad at all, it can be a little finicky with win 7 64 bit for some people but I have had no problems with it at all. Good luck and hope you find a rom that suits you.
Sent from my GT-I9000 using XDA Premium App
shadoslayer said:
There isn't really anything specific for the i9000m. Really, its just a matter of picking a rom and following the flashing instructions. If you're flashing a stock release (like JVH lets say), use Odin, flash the tarball with update bootloader checked and once thats done, flash an appropriate modem for Bell (for 850mhz), like KC1 that I find works very well.
Click to expand...
Click to collapse
Do you see much of a difference with the KC1 modem? Im running the JVO modem and it works fine for me usually have 3-4 bar connection, 3G tends to run quite often and get a 1Mbps down and 2 Mbps up connection, only thing I notice is that it runs on the 1900 band mostly
Any benefits to switching to KC1? Battery savings?
Do you see much of a difference with the KC1 modem? Im running the JVO modem and it works fine for me usually have 3-4 bar connection, 3G tends to run quite often and get a 1Mbps down and 2 Mbps up connection, only thing I notice is that it runs on the 1900 band mostly
Click to expand...
Click to collapse
Turns out the
PDA: XWJVH
MODEM: XXJVO
CSC: NEEJV3 or XEEJV3 (Only difference between NEE and XEE is the CSC code)
Build Date: Wed May 4 18:03:59 KST 2011
Click to expand...
Click to collapse
seems to work fine with working modem from http://goo.gl/02b7S
BUT
there is no OpenVpn OR SIP and those are the two things that I really wanted out of gingerbread.
I personally found JL2 better than KC1. I get up to 5mb/s down and 3mb/s up.
About cyanogen, you gotta try it to see . I didn't believe the difference would be noticeable either...
If you want modems for cm7, click the JL2 modem link in my sig, there's a post full of them.
For modems for other roms, look over there : http://forum.xda-developers.com/showthread.php?t=876391
And just like everyone else said, you can flash i9000 roms on i9000m without any problems - in fact even flashing a different modem isn't necessary, depending on your provider, it's just better.
those are features commonly found within the custom roms for jvh
Thanks for this thread. Provided the modem for me to get this working properly.
If I were you I would stick with a Daryky rom. his 10 finaly is a little slow and glitchy at times so I recommend 10 RC6. it's a stock jvh rom with his tweeks. Cyanogen is basically vanilla rom. it's so fast (the best i've flashed so far) but it's missing swype, like you stated you wanted that. I tried getting the beta swype but it didn't work. anyways i'm actually liking the gingerbread keyboard haha. so ya, if you need swype stick with darky rom, if your looking to try an amazing rom try cyanogen.
The swype beta installed without any problems for me on cm7...
The only thing is I speak french, so either I get the english keyboard, or I get the "France" french one... which is AZERTY... u_U
spectre85 said:
If I were you I would stick with a Daryky rom. his 10 finaly is a little slow and glitchy at times so I recommend 10 RC6. it's a stock jvh rom with his tweeks. Cyanogen is basically vanilla rom. it's so fast (the best i've flashed so far) but it's missing swype, like you stated you wanted that. I tried getting the beta swype but it didn't work.
Click to expand...
Click to collapse
I used Darky's rom for a looong time before switching to something else. I really didn't like the theme (at the time), and I found roms that seemed to perform better. I also ran a deodexed JL2 that I cooked myself for a while.
You can get swipe APKs from just about any custom rom out there, just pull the apk out of the .zip and install it. Or, I just signed up for swipe beta and installed it - works great.
Anyway, I guess the bottom line is that there are so many options available, and so many fantastic cooked roms available in the development thread, that trying them and finding one you really like is the only way to go.
Ok i have a rooted Samsung sgh I896. This is what it has..
2.2
baseband I896UXJL1
kernal 2.6.32.9
build number froyo.uxjl1
I have many lag issues, wifi wont always auto connect and still unsure of the gps. I come from the Acer Liquid camp over at android.modaco. I have flashed all sorts of roms, none ever worked perfectly. Now that being said my stock Cappy is buggy so I do understand.
So my question is, are the Roms that much better than stock and will I see some of my issues resolved or will I just have new issues?
This community seems very knowledgeable. So I am sure I will get many great answers. Is there anyone who regrets flashing a rom? If so why?(forgot to make backup, some app does not work properly, bricked your phone...etc) I know these people will not be the norm but I would just like any feedback before I jump in.
Thanks
I will never go back to stock again. plain and simple. Custom ROMS are so much more efficient than stock. Faster, use less battery, more features... using the phone the way it was intended. Once you do it, you will neer look back.
The Dev community for the Captivate is awesome. I have seen almost nothing but fixed issues when flashing to a custom ROM. I've got the I897 and the custom ROMs have increased battery life, reduced crashes, fixed gps (although this seems to be hit or miss among users as to how effective the fix is), better/ quicker wifi connections. The interface seems much smother on many ROMs too. All this and more features. I'm sold. A word of caution though. The more mature ROMs will have fewer problems. Check out the last few pages of the DEV threads for anouncements of fixes. When I've seen these in the threads, the ROMs seem to work much better than the new releases. Pretty much read the threads and see if they've got the bugs worked out yet, Happy Flashing.
Cheers
issues custom ROM fixed for me
GPS
ring after reboot
wifi connection dropping
wifi toggle button error
slow wifi connecting on remembered networks
battery life
screen stutter when switching homescreens
Thanks all. I will install a rom. Now to decide which one. Lol
Sent from my SAMSUNG-SGH-I896 using XDA App
hossiam said:
Thanks all. I will install a rom. Now to decide which one. Lol
Sent from my SAMSUNG-SGH-I896 using XDA App
Click to expand...
Click to collapse
Start with cognition, its the perfect rom to pop your cherry. Start with 4.5.3 (Froyo), its the closest to stock and will be quite familiar. From there you can try some other custom themed roms. The Froyo roms are easiest to install, just place that update.zip file on your sd card along with the rom zip file, then enter recovery and flash away. Good luck
For Roms it you who decide which you liked the most, there is nothing like the best. For One A will the best but fot other A will be the worst. There are many good roms here try and decide yourself
hossiam said:
Thanks all. I will install a rom. Now to decide which one. Lol
Sent from my SAMSUNG-SGH-I896 using XDA App
Click to expand...
Click to collapse
That's the fun part, flashing then to find out which one you like the most.
I would say start with a froyo rom. They are very easy, straightforward to flash. After you are comfortable with those, move up to GB. I would also recommend buying Titanium Backup. It makes setting your phone up after a flash alot easier.
Serendipity 6.4 Best start rom...Best froyo rom out...
Sent from my SAMSUNG-SGH-I897 using XDA Premium App
hossiam said:
Ok i have a rooted Samsung sgh I896. This is what it has..
2.2
baseband I896UXJL1
kernal 2.6.32.9
build number froyo.uxjl1
I have many lag issues, wifi wont always auto connect and still unsure of the gps. I come from the Acer Liquid camp over at android.modaco. I have flashed all sorts of roms, none ever worked perfectly. Now that being said my stock Cappy is buggy so I do understand.
So my question is, are the Roms that much better than stock and will I see some of my issues resolved or will I just have new issues?
This community seems very knowledgeable. So I am sure I will get many great answers. Is there anyone who regrets flashing a rom? If so why?(forgot to make backup, some app does not work properly, bricked your phone...etc) I know these people will not be the norm but I would just like any feedback before I jump in.
Thanks
Click to expand...
Click to collapse
If u wanna stay with stock 2.2, download OCLF from the market and that should fix your lag issues. Me...personally, I rather flash a 2.3 rom. I'm usin Dlev's and oh boy, my phone is a BEAST This is "MY" opinion. Good luck!!!
Haven't pulled the trigger yet..... MIUI look s nice. Still must do more research. Thanks for the info. Tried oclf.... Made quadrant better but no actual speed fix
Fired up a few roms....they are wicked fast! Cool as ice..lol. They all had more bugs than stock. Lucky there is a post to go back to rogers 22. They are fun and all but i need fully working rom. i cannot wait until there is a bug free gingerbread rom. I must note i only tried gingerbread. I will stay involved reading the posts but stock is where i will be for a while. Thank you all devs!
Sent from my SAMSUNG-SGH-I896 using XDA App
I agree with Toad, Cognition 4.5.3 is a great starting point for flashing. Very simple to flash, very similar to stock's GUI, one of the most stable (if not the most stable) ROMs I've ever tried, and has many many good features and enhancements.
Here's the link to the Thread:
http://forum.xda-developers.com/showthread.php?t=964583
And yes, Gingerbread ROMs are abit too recent still, therefore you are likely to encounter bugs (and they are STILL a lot better than Stock), so I recommend you poke into those later.
I tried MIUI and it is a very nice and full-featured ROM, so I'm pretty sure you'll like it. Cheers and have fun!
I know how to backup with titanium...i,m so smrt. i have backed up flashed roms with nandroid on my acer liquid e. My only question...part 2.... if you will, is how to back up your stock out of the box rom? If you back it up, re install it can you update it?...i.e. if gingi ever gets released.
I just got a captivate last night and i have unlocked and and rooted it
it has a firmware of 2.1 - update 1
idk if thats the most recent update
i was told i can not update the phone with a t-mobile sim card in it so can anyone post a thread on updated versions and what do you all think is the best rom?
THANKS
There is no "best" rom. It's what's "best" for you. Read the forums and learn to flash 2.2 roms first.
I must warn you, flashing becomes very addictive.
Sent from my GT-I9000 using XDA App
Yea i know i have a sidekick 4g and ive tried about every rom on it
thanks for the info though
Tyler0309 said:
Yea i know i have a sidekick 4g and ive tried about every rom on it
thanks for the info though
Click to expand...
Click to collapse
I recommend trying MIUI, the customization is what puts it over the top!
Here are a few different versions of MIUI:
Galnet**What I prefer**
http://www.galnetmiui.co.uk/twooey/v3/Twooey-V3-i897.zip
Prototypes release
http://forum.xda-developers.com/showthread.php?t=1066885
MIUI.us
http://roms.miui.us/1.8.12/MIUI.us_captivatemtd_1.8.12_Eng_Deo_ZipA_Signed.zip
Ok ill give it a try..do i have to update to a different version> im running 2.1 right now
Tyler0309 said:
Ok ill give it a try..do i have to update to a different version> im running 2.1 right now
Click to expand...
Click to collapse
I've not been on 2.1 since phone came out. I would use odin one click to goto 2.2 stock. Root it then install cwm and then follow this guide if your going to try Galnet's MIUI.
http://www.galnetmiui.co.uk/content/forum/guides/(guide)-i897-galaxy-s-captivate-gb-bootloaders/
Then just pop the MIUI.zip on root of sdcard and install from CWM.
Tyler0309 said:
I just got a captivate last night and i have unlocked and and rooted it
it has a firmware of 2.1 - update 1
idk if thats the most recent update
i was told i can not update the phone with a t-mobile sim card in it so can anyone post a thread on updated versions and what do you all think is the best rom?
THANKS
Click to expand...
Click to collapse
Wow... so... You should probably READ a lot more before flashing anything, but I'll give you a few hints to get you going:
1) Make sure you understand what a "PBL", "SBL", "Kernel", and "Modem" are and how they are placed/installed in your phone.
2) Learn how to correctly and safely use ODIN (and/or Heimdall).
3) Learn about the various methods of recovery for "soft bricks", and if necessary for your hardware revision, possibly invest in a jig (also learn what a jig is)
4) There are 2 different types/branches of ROMs for the Captivate:
-- Samsung Branch
-- AOSP Branch
Within the "Samsung" types you have:
- i9000 ROMs (like JVP, JVR, JP8, etc)
- i897 ROMs (like JF6, KF1, etc)
Within the "AOSP" types you have:
- CM7
- MIUI
- Other AOSP-based ROMs
Which is "better" is relative. CM7 and MIUI have features that aren't present in the Samsung ROMs, and both offer a bit more customization than the Samsung ROMs. However, only the Samsung ROMs offer GPU accelerated video playback, and they tend to have significantly better battery life than the AOSP-type ROMs. Also the Samsung-type ROMs used to be much more stable than the AOSP branches, but recently, the tide may have turned in the other direction. Some of the low-level radio settings are also unavailable in any of the AOSP builds. And finally, some of the Samsung stock camera features are unavailable in CM7/MIUI.
It really all depends what you want... Do you want closer to stock "open source" Android? Or do you want Samsung's vision of what they think Android should be?
Also, the whole kernel/modem part is dependent on what branch of ROM you plan on running. When using a i9000-Samsung ROM, you pretty much have to use an i9000 kernel and modem. When using a i897-Samsung ROM, you pretty much have to use an i897 kernel and modem. The rules for CM7/MIUI are a bit more vague, but at the very least you'll need to use a CM7/MIUI (most AOSP-type kernels are interchangeable) compatible kernel.
The best advice is really to try them all out and see what you like the most. If you're currently on stock 2.1 (which it sounds like you are), at the very least you should upgrade to some variant of Gingerbread (2.3.4 preferably). You will definitely notice a big difference in terms of speed and functionality. From there, well, it's all really up to you...
OR alternatively, just start throwing stuff on your phone and see what happens. Just PLEASE don't come crying back in the Captivate General forum with a "OMG I bricked my phone!!! Plz help!!!" thread. Fair warning...
Just a suggestion, but become familiar with Odin one click. Make sure your captivate has 3 button recovery, and read, re- read, and read again the directions of every rom before you flash it. Always make a nandroid back up if possible, and read the threads.if you have questions, so did someone else and the answer is probably already out there .use search. Some People will rip your head off if you don't. as far as miui goes .....i was a flashaholic when I got phone. After switching to miui, It is very unlikely that I will ever leave. Best rom ever imho. And it updates every Friday so that satisfied the flashing urge. Usually it gets better with each release. The last couple have been a little rough though. Might want to spend the 8 bucks and have a download jig on standby. Can get it from mobiltech videos. Its worth it though
Sent from my I897 using XDA Premium App
Shammyh said:
Wow... so... You should probably READ a lot more before flashing anything, but I'll give you a few hints to get you going:
1) Make sure you understand what a "PBL", "SBL", "Kernel", and "Modem" are and how the are placed/installed in your phone.
2) Learn how to correctly and safely use ODIN (and/or Heimdall).
3) Learn about the various methods of recovery for "soft bricks", and if necessary for your hardware revision, possibly invest in a jig (also learn what a jig is)
4) There are 2 different types/branches of ROMs for the Captivate:
-- Samsung Branch
-- AOSP Branch
Within the "Samsung" types you have:
- i9000 ROMs (like JVP, JVR, JP8, etc)
- i897 ROMs (like JF6, KF1, etc)
Within the "AOSP" types you have:
- CM7
- MIUI
- Other AOSP-based ROMs
Which is "better" is relative. CM7 and MIUI have features that aren't present in the Samsung ROMs, and both offer a bit more customization than the Samsung ROMs. However, only the Samsung ROMs offer GPU accelerated video playback, and they tend to have significantly better battery life than the AOSP-type ROMs. Also the Samsung-type ROMs used to be much more stable than the AOSP branches, but recently, the tide may have turned in the other direction. Some of the low-level radio settings are also unavailable in any of the AOSP builds. And finally, some of the Samsung stock camera features are unavailable in CM7/MIUI.
It really all depends what you want... Do you want closer to stock "open source" Android? Or do you want Samsung's vision of what they think Android should be?
Also, the whole kernel/modem part is dependent on what branch of ROM you plan on running. When using a i9000-Samsung ROM, you pretty much have to use an i9000 kernel and modem. When using a i897-Samsung ROM, you pretty much have to use an i897 kernel and modem. The rules for CM7/MIUI are a bit more vague, but at the very least you'll need to use a CM7/MIUI (most AOSP-type kernels are interchangeable) compatible kernel.
The best advice is really to try them all out and see what you like the most. If you're currently on stock 2.1 (which it sounds like you are), at the very least you should upgrade to some variant of Gingerbread (2.3.4 preferably). You will definitely notice a big difference in terms of speed and functionality. From there, well, it's all really up to you...
OR alternatively, just start throwing stuff on your phone and see what happens. Just PLEASE don't come crying back in the Captivate General forum with a "OMG I bricked my phone!!! Plz help!!!" thread. Fair warning...
Click to expand...
Click to collapse
Well said.
Sent from my SAMSUNG-SGH-I897 using XDA Premium App
Tyler0309 said:
I just got a captivate last night and i have unlocked and and rooted it
it has a firmware of 2.1 - update 1
idk if thats the most recent update
i was told i can not update the phone with a t-mobile sim card in it so can anyone post a thread on updated versions and what do you all think is the best rom?
THANKS
Click to expand...
Click to collapse
a very simple and easy way to start with...
2.1 is eclair..
2.2 froyo
2.3 gingerbread..
means 2.1 is oldest and 2.3 is latest in case of official roms..
so obviously new version will hav more features and faster in speed...
so now u can take baby step and install 2.2 ..and use it for few days..and get the feel of it..then again after sometime u can install 2.3...
or else u can directly jump to 2.3....which is gingerbread....u can install stock kf1 on ur phone..its leaked official gb...if u search a bit..u will get it..
then u can use it for a lil while and get the feel of gb stock rom..in the meanwhile u can read xda abt available custom roms..and then install any of them...
coz every memeber here in xda will suggest the custom rom they r using..coz they r lovin the rom then only they r using....like for me..since the time i started flashin..i always used APEX ROM..so i will say its the best....
but again thats just me..
so decision is always urs...
Right, ive had a i9000 for 5 months or so, and ever since i got it, ive found it to be slow, at times laggy. And hate alot of the crap samsung put on it.Which ive not even used.
I reckon its about time i start to make the most of my phone, but dont really know where to start, with these custom roms and rooting and what not.
I basically want it to run smoothly and possibly add a tweaks/features to it which could possibly improve it. However i remember reading somewhere, that ill lose the camera features if i install a custom rom. :l (i could be talking from my arse here)
Also i read that android 4.0 is coming or has come out. Would i be able to upgrade my phone to it ? and should i ?? If not what is the best rom to flash which will make my phone faster and smoother.
Is there anything at all to make it significantly faster, or is it limited by hardware :/
Im currently on:
kernal version 2.6.29
firmware 2.1 -update1
Which i havnt messed with since i got the phone.
Thanks, and sorry for the daft questions.
Oh dear! did you wrote 2.1? Please read basic root steps and install custom rom. I recommend you to start with Cf-root
go here :- http://forum.xda-developers.com/showthread.php?t=788108
As far as 4.0, please wait.
innovat0r said:
Oh dear! did you wrote 2.1? Please read basic root steps and install custom rom. I recommend you to start with Cf-root
go here :- http://forum.xda-developers.com/showthread.php?t=788108
As far as 4.0, please wait.
Click to expand...
Click to collapse
Lol Is 2.1 bad ? hahaha
Sorry for sounding dim, but what have you pointed me to ?? rooting ? installing a rom ? updating kernal ?
And what is the difference between these ? are all 3 needed to get the phone working as i want it to ?
Im totally new to everything andriod so can you please be as clear as possible.
Thank you for your reply.
And sorry again for all the questions.
skweezer said:
Lol Is 2.1 bad ? hahaha
Sorry for sounding dim, but what have you pointed me to ?? rooting ? installing a rom ? updating kernal ?
And what is the difference between these ? are all 3 needed to get the phone working as i want it to ?
Im totally new to everything andriod so can you please be as clear as possible.
Thank you for your reply.
And sorry again for all the questions.
Click to expand...
Click to collapse
OK, here we go...
1. First of all you need to root your device to install a custom rom or kernel. So first root your device with the above thread (cf-root).
2. Choose any rom from so many roms available all over xda. Choose only from the topic which is under your device's category, not from other device's rom,lol.
To do this you need Odin(use search)
3. Once done you will have custom rom and also custom kernel if you wish.
After these you can go for lagfix, like changing from rfs to ext4.
Best of luck.
Thanks, so after ive rooted with cf-root. do i have to install a custom rom and custom kernel, both ?
And which is considered the best rom and kernel ?
thanks
regards
Hey Skweezer,
Recommend you start with these threads:
http://forum.xda-developers.com/showthread.php?t=939752
and:
http://forum.xda-developers.com/showthread.php?t=723596
They will tell you about how to connect your phone to your PC (Samsung USB drivers + adb), 3 button mode (how to avoid bricking your phone), backing up important/unrecoverable data (like your EFS block!), and what (in general) needs to be done to flash custom firmware.
After that, you should be able to pretty much recover from any error (like unplugging your phone mid flash). Now you can go ahead and root your phone and start exploring the wonderful word of custom roms! As for which one is the best, that's like asking "how long is a piece of string?" Some people prefer speed and cutting edge, others value battery life and stability, some aim for the middle of the road.
Personally I've tried tegrak kernel and was really impressed with the speed improvement! However, the limited app space finally turned me back to other kernels. I found the rest to be pretty much six in one, half dozen in the other (ie all about the same)... so pick one you like and just go for it... use it for a while and if it's not to your liking, flash again
Just a quick rundown on android for you... firmware 2.1 = Eclair, 2.2 = Frozen Yoghurt, 2.3 = Gingerbread, 3.0 = Honeycomb (tablet only version of android) and 4.0 = Ice Cream Sandwich (unify android for phone/tablet/tv again). There is a HUGE performance increase from going stock 2.1 to 2.3! so even if you just upgrade to Samsung's Gingerbread release (2.3.3 I believe?) you will notice better performance. Doing lagfix, kernel tweaks, etc is just icing on top of the cake. However, you'll find once you start tweaking, you won't go back to stock
Well, easiest way of starting is installing KIES and letting it update your phone. That's the official way and you won't have to bother with details like kernels, roms, bootloaders, etc and won't void your warranty (if that's the case).
You'll probably be left with with some 2.3.x version. Might as well make a backup from your stuff before upgrading, kies sucks in a general way, but may help you with that.
From that point on, if you still want to press further into customization goodness, there are PLENTY to chose from.
There are mainly 2 kinds of roms:
- Samsung based (someone picks up a sock samsung rom and modifies it with scripts, kernels, themes, apps, etc). These are most of the ones you'll find in the development section of this forum.
- not samsung based (like Cyanogen e MIUI). These are built from Google's sources directly and totally skip samsung. Therefore, samsung apps most likely won't work here. Everything else does.
Personally i'd recommend Cyanogen 7.1 stable as your next rom. It's an extremely optimized and wildly popular rom, with plenty of options that you won't find in any stock rom. They have their own forum i recommend you to look up if you're going their way.
Whatever you do, GET AWAY FROM THAT 2.1
Cheers for alll the replies guys. Im first going to just update via kies. To an official 2.3
If im not happy with that then ill try a custom rom and rooting.
If only it was as simple as jailbreaking and iphone. lool
Right, ust updated to latest version via kies. And instantly alot better, smoother. Has some of those things bulit into the system which i always though were missing.
Ill try it for a week, and see if theres anything i need, or think is missing. Then i might go custom. But right now im happy with it on the latest official version.
Thank you guys, i think you've made me sort of like android a bit more.