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Hi,
i currently have Froyo 2.2.1 + Root + Vodoo + Lagfix installled.
However, i am unhappy with the battery life with the voodoo kernel and want to get back to my CF Kernel.
I modded some of the stuff on my SGS (Camera App, Bootscreen, uninstalled some system apps).
First Question:
If i dont have any other issues, is there a reason to reformat the whole device (repart) so its back to stock like it was when i got it? I always felt better with a "fresh" installation of my windows, and somehow i feel like... how to say.. like i dumped my OS on the SGS with all the stuff i installed, reinstalled, deinstalled, flashed etc pp ^_^ But if you say, thats not an issue then i will leave it as it is.
Second Question (just to confirm what i am doing):
How do i uninstall vodoo and get back to what it was before installing vodoo? I want a fresh install after that.
1. Disable the Lagfix
2. Factory Reset
3. Flash JPY without Repart
4. Flash CF Kernel
5. Install Rom Manager + CWM
6. Install Deoexed Stock JPY Theme
7. Install Backup Apps/settings (not nandroid)
8. Profit
Correct?
Could i also restore a nandroid Backup from when i had the CF Kernel? (after step 5 ofc).
Thanks in advance
//EDIT:
To concretise my initial question:
When is repartition needed? (except when you crashed the OS on the phone )
Re partition is only needed when you have a firmware with all 3 files.. and something is corrupted preventing the phone from booting...
you dont need to do a full wipe.. you could get away with just removing lagfix and restoring back to JPY firmware... BUT doing a full factory reset would remove any unwanted things giving you that 'fresh out the box' feel... somethings tend to get left behind if a wipe isnt done.
your steps 1-8 are all in the right order you can disable lagfix thru CWM
i always do a full wipe before installing another ROM it makes me feel better
i always do a full wipe before installing another ROM it makes me feel better
Click to expand...
Click to collapse
Yes same reason why i did ask
So, I did steps 1 and 2, but instead of flashing the JPY i tried to flash the brand new JS5.
Now i have this issue:
http://forum.xda-developers.com/showpost.php?p=11372249&postcount=5
(to keep topics separated please answer there)
I want to flash my galaxy s to some ICS rom but I don't know which one to use. I don't want to mess with my phone with trial and error so please do suggest which rom is better. Plus, I came from gingerbread rom which is darkyrom 10.4.2. Do I need to do something first before swtching to an ICS rom like flashing base through odin and do a CWM? Quick response will be appreciated. Thanks!
Sent from my GT-I9000 using Tapatalk
Just make sure you backup your contacts and anything else you need, for me contacts are the most important (synced to google)
If you have a stock GB or Sammy rom I guess it wouldn't hurt to flash that through odin first, just make sure NOT to tick repartition.
If not, just disable any lagfixes (I just got a Galaxy S and have never used any so I have no idea how to disable them) and go into CWM, wipe date, cache, and dalvik cache (in advanced menu)
For which ROM to use, Slim ICS is probably the most popular right now:
http://forum.xda-developers.com/showthread.php?t=1488096
I have used this personally and I find it very fast, I just don't like that there are no music controls in the status bar when you pull down the notification thing, which is very important to me. I also hate the launcher that comes with it (Zeam) but that's just me and ofcourse you can easily get another one such as Nova or Apex.
I am currently using Infinitum 2.1
http://forum.xda-developers.com/showthread.php?t=1572705
Very stable, very fast, lots of customization. I highly recommend this.
I have also used Dark Knight and CM9 Nightlies, although they are great ROMS, they just don't compare to Slim and Infinitum (This is just my opinion). I found Dark Knight very slow and laggy, but it was my first time flashing an ICS rom (previously used CM7 and MIUI 2.3) so I may have missed a step or two. CM9 is epic but is missing the customization features that Infinitum has.
Why is it a big deal not to tick repartition? And I read some post regarding wiping imei when you switch to ICS. Is it true? Can you give me a link for the stock rom?
Sent from my GT-I9000 using Tapatalk
Apparently you can brick your phone if you do, and I see no reason to tick it unless your phone is having some serious issues already (I may be completely off track here, so someone please correct me if I am wrong).
You can find stock roms here:
http://www.sammobile.com/firmware/
I suggest just flashing an ICS rom straight away though, as long as you wipe data and clear cache everything should run smooth, I've never had any problems
EDIT: Take a nandroid backup before you flash anything, in recovery go backup and restore, backup to either external or internal (whatever you have more space on) and remember to copy the backup to your pc, it's located in the clockworkmod folder on your sd card when you plug your phone into your pc.
So I will flash a stock rom, download that infinitum rom and flash it to recovery? Am I right?
Sent from my GT-I9000 using Tapatalk
Just skip the stock rom part, download infinitum, reboot to recovery while you are downloading (darky's probably has a reboot to recovery option when you hold the power button, if not hold volume up + power + home at the same time until the samsung logo comes up), backup your current rom (instructions in my post above), reboot device, mount usb storage and copy the downloaded infinitum file to your sd card (don't put it in any folder, just in the root of usb storage), reboot into recovery again, wipe data/cache/dalvik cache, install zip from sd card and chose the infinitum zip you downloaded, enjoy
Yeah it has boot to recovery. I did a nandroid back up 2 days ago. I have one more question, will I be able to go back to darky's in case I don't like the ICS rom? Will try to flash infinitum. How's the battery life btw?
Sent from my GT-I9000 using Tapatalk
Yea that's what the nandroid backup is for, I'm in holidays atm so my phones plugged into the charger for most of the day, but if you search a bit other people say it has amazing battery life. (I think Slim has better battery though)
Edit: Just incase you didn't know, your nandroid backup will take you back to Darky's rom, if you want to get your settings/apps on ICS, use mybackup root or titanium backup, I like mybackup root as it makes installing apps a lot easier
Aadilnz said:
Yea that's what the nandroid backup is for, I'm in holidays atm so my phones plugged into the charger for most of the day, but if you search a bit other people say it has amazing battery life. (I think Slim has better battery though)
Edit: Just incase you didn't know, your nandroid backup will take you back to Darky's rom, if you want to get your settings/apps on ICS, use mybackup root or titanium backup, I like mybackup root as it makes installing apps a lot easier
Click to expand...
Click to collapse
Oooohhh.. So I don't need to reflash through CWM with darky's rom if I want to go back? Just a restore through nandroid and I'm back to darky's rom? Thank you.
On my personal experience, where in i have used Teamhacksung, CM9, Onecosmics and now iam on Elite ICS 10.1.
The best is Elite "http://forum.xda-developers.com/showthread.php?t=1575683"
with Midnight Hugemem kernel (BM Kernel MNICS-143LR),
which is provided with the rom in the "Actualizador" app the ROM provides,
plus flash this script "http://forum.xda-developers.com/showpost.php?p=24723427&postcount=513" for getting the 720p recording to work.
Trust me, really good combination of ROM and Kernel, Very smooth and stable.
And About Slim, it lacks many things, which if u used any other ICS rom yu would know, and CM( is very unstable as for now, but sometime later is gonna be the best one for sure.
Hi
i have just flashed ICS_Stunner_1.4.26.1 onto my Note.
Its amazing, I love it.
I have changed the dpi to 189 and changed it to forced landscape with 10 x 10 icon layout.
It was working fine the whole day and now when I turned on my phone the icons are cut in half. Not sure how to fix this?
Secondly I flashed from GB 2.3.6 with abyss kernal... they say you must charge battery to full then discharge empty and then charge to fill and delete some battery config. Is this true?
What would your path of action be when flashing a new rom? Also how do I restore all my contacts? I made a complete backup using titanium backup (system, apps & data) when I was on my root stock rom...
I got a few questions there and hopefully I can be pointed in the right directions...
One final question, if I wanted to try out KingDroid rom. How would I do it coming from this ICS Stunner Rom?
randomwalsh said:
Hi
i have just flashed ICS_Stunner_1.4.26.1 onto my Note.
Its amazing, I love it.
I have changed the dpi to 189 and changed it to forced landscape with 10 x 10 icon layout.
It was working fine the whole day and now when I turned on my phone the icons are cut in half. Not sure how to fix this?
Secondly I flashed from GB 2.3.6 with abyss kernal... they say you must charge battery to full then discharge empty and then charge to fill and delete some battery config. Is this true?
What would your path of action be when flashing a new rom? Also how do I restore all my contacts? I made a complete backup using titanium backup (system, apps & data) when I was on my root stock rom...
I got a few questions there and hopefully I can be pointed in the right directions...
One final question, if I wanted to try out KingDroid rom. How would I do it coming from this ICS Stunner Rom?
Click to expand...
Click to collapse
I follow the procedure suggested by xda thread when I change from ICS rom to another ICS or GB rom:
1. download AbyssNote 4.2 kernel and place it on your internal/external SD Card
Also download the ICS Rom you want to install and put it on your SD card.
2. reboot to CWMR and do a backup of your current system
3. after your backup is done, stay in Recovery
4. go to install a zip from SD card --> select AbyssNote 4.2 zip and flash it
5. go back to CWMR's root menu --> advanced --> reboot recovery
6. you'll find yourself in AbyssNote's Touch Recovery
7. factory reset --> wipe cache --> wipe dalvik
9. flash the ICS Rom of your choice
10. reboot and let the Rom settle for a couple of minutes
I have no problem with this procedure so far.
If you want to be absolutely safe, you will use PC Odin back to stock Gingerbread, root it, then flash a safe rom/kernel combo. Abysskernel will work, but it's not 100% safe.
Your contacts should be restored if you had them synced with Google (Settings --> Accounts).
When you restore with TI Backup (if you do) don't restore anything system wise. Just apps and data with them only. If you have bugs, you will have to re-flash and NOT restore apps.
ok concerning my contacts... i didnt sync them with google... i know silly me. it was on the phone.
So doesn't titanium backup copy them anywhere.
I have made backup of my rom with cwm... would that contain my contacts if i restored that backup?
was its either use cwm which isnt 100% safe or use pc odin and stock gb...
Could i just restore the backup of my gb rom and then flash from there to a ics?
Use PC Odin back to gb stock prerooted, the stunner use a bad kernel i think and wipe can cause emmc to break?, so i suggest using PC odin back to stock prerooted gb , then follow some guides ( i used abysskernel ) then Asylum as its same and good rom!
randomwalsh said:
ok concerning my contacts... i didnt sync them with google... i know silly me. it was on the phone.
So doesn't titanium backup copy them anywhere.
I have made backup of my rom with cwm... would that contain my contacts if i restored that backup?
was its either use cwm which isnt 100% safe or use pc odin and stock gb...
Could i just restore the backup of my gb rom and then flash from there to a ics?
Click to expand...
Click to collapse
If you restore "Phone" and Contacts app + data with TI backup, it MIGHT restore them but no guarantees.
You can restore the backup of your GB rom IF you are NOT using CWM on a stock ICS rom. Use Abyss Kernel to restore nandroid backup. Flash Abyss. Reboot recovery. Restore nandroid.
Go to stock ICS OR franco, speedmod, or CM9 kernels or a CM9 build.
ok I flash abyss kernel via cwm... then advance reboot recovery... restored my backup via cwm... merged my phone contacts with google...
Then i got curious about Kingdroid v2.0 with s3 add ons. So I downloaded that and flashed it via cwm... the play store wasnt downloading apps but i could browse internet, so reflashed abyss kernal via cwm and re flashed ics stunner...
I am back on stunner now. I prefer to look of this rom. So i guess as long as your flash abyss kernel you should be fine with flashing different roms and retaining root?
Just need to find out about the battery issue... when flashing a new rom what do you do concerning the battery to ensure correct % and charge...
edit: currently on Kernel : 3.0.15-I9220ZCLP6-CL343671
should i flash to one of the kernels you mentioned above?
also still having problem with cut off icons with apex set at 10x10 in landscape mode...
ok i think i has figured out the solutions...
At current apex doesn't support icon resizing so i changed my layout to 6 x 6 for now.
also was having problem making calls, it kept fc. I found out somewhere that if you use 160dpi you can use a fix or change to 200dpi and you don't need a fix and it works and still looks awesome.
I am very happy with this rom thus far... otg works which is a plus. I think i will use it for a week or so and then try the next one...
flashing roms is like eating pringles... once to flash you can't stop
Dont take me wrong dude but all these fixes including the call fc are in the stunner page,if u read everything before flashing u will not have problems and if u do, u would know how to solve yourself...and be careful restoring nandroids from cwm,flash abyss,then restore.
Sent from my GT-N7000 using xda premium
Also for the playstore,u could only clean the caches in my apps or change the dpi that would work
Sent from my GT-N7000 using xda premium
hahaha why would i take it the wrong way?
but seriously there are like 500 pages... and sometimes your searches are using the right key words. But yip I will try my best not to ask questions that have already been answered... even tho those answers are hidden in the mine that is xda...
With time you learn to navigate such a mine without feeling lost and confused but i am still a wee padawan
Yes always flash abyss first ALWAYS
Hi there,
I have a rooted N7000 running original Android v 2.3.6
I want to flash (test) it with a custom ROM.
I made a full backup of my current system (via CWM backup)
Now, when I flash a (new Android 4) custom ROM, will it then be possible to restore the old v2.3.6 image that I made, using CWM?
Other question: Do I need to take care of what type Kernal version I have
I have 2.6.35.7-N7000XXKKA-CL726566
Baseband-version is N7000XXkk5
Thanks for your reply.
Rene
jbin said:
Hi there,
I have a rooted N7000 running original Android v 2.3.6
I want to flash (test) it with a custom ROM.
I made a full backup of my current system (via CWM backup)
Now, when I flash a (new Android 4) custom ROM, will it then be possible to restore the old v2.3.6 image that I made, using CWM?
Other question: Do I need to take care of what type Kernal version I have
I have 2.6.35.7-N7000XXKKA-CL726566
Baseband-version is N7000XXkk5
Thanks for your reply.
Rene
Click to expand...
Click to collapse
nothing to worry about, that is what backup is intended to do.
the only thing you have to watch that you're on safe kernel like philZ when wiping data in stock ics or jb (read sticky threads)
example: if you are on philz kernel and runing ics or jb, when you restore your backup of gb, you restore your gb kernel, system, data etc, just like backing home
djoni_gitara said:
nothing to worry about, that is what backup is intended to do.
the only thing you have to watch that you're on safe kernel like philZ when wiping data in stock ics or jb (read sticky threads)
example: if you are on philz kernel and runing ics or jb, when you restore your backup of gb, you restore your gb kernel, system, data etc, just like backing home
Click to expand...
Click to collapse
OK, Thanks for the reply. So if I understand correctly:
1. I make a backup of my current ROM (Image via CWM) and put it in a safe place.
2. I can flash any custom ROM, and test/play with them.
3. Afterwards I can put back my old ROM again via CWM restore.
4. Reboot, and I'm back in the old state.
Is this right?
Can I flash ROMs by using CWM also (using zip files) or do I need to flash, using Odin?
I actually do not understand your remark about philZ, can you explain a bit more about what that means.
Thanks for your help so far
Rene
jbin said:
OK, Thanks for the reply. So if I understand correctly:
1. I make a backup of my current ROM (Image via CWM) and put it in a safe place.
2. I can flash any custom ROM, and test/play with them.
3. Afterwards I can put back my old ROM again via CWM restore.
4. Reboot, and I'm back in the old state.
Is this right?
Can I flash ROMs by using CWM also (using zip files) or do I need to flash, using Odin?
I actually do not understand your remark about philZ, can you explain a bit more about what that means.
Thanks for your help so far
Rene
Click to expand...
Click to collapse
Since you are going to try custom rom, you need not to worry about emmc brickbug, since they will be using a safe kernel..but double check before flashing...so, if you are on Stock ICS kernel, you should NOT wipe/factory reset..if you do, you will brick your phone..you can just go through couple of sticky threads to know abt emmc brickbug, if you are not aware of that..whatever the steps you have mentioned above are correct..but when you flash a custom rom, follow the instructions mentioned in the Custom rom OP...
Shyam said:
Since you are going to try custom rom, you need not to worry about emmc brickbug, since they will be using a safe kernel..but double check before flashing...so, if you are on Stock ICS kernel, you should NOT wipe/factory reset..if you do, you will brick your phone..you can just go through couple of sticky threads to know abt emmc brickbug, if you are not aware of that..whatever the steps you have mentioned above are correct..but when you flash a custom rom, follow the instructions mentioned in the Custom rom OP...
Click to expand...
Click to collapse
+1
jbin said:
OK, Thanks for the reply. So if I understand correctly:
1. I make a backup of my current ROM (Image via CWM) and put it in a safe place.
2. I can flash any custom ROM, and test/play with them.
3. Afterwards I can put back my old ROM again via CWM restore.
4. Reboot, and I'm back in the old state.
Is this right?
Can I flash ROMs by using CWM also (using zip files) or do I need to flash, using Odin?
I actually do not understand your remark about philZ, can you explain a bit more about what that means.
Thanks for your help so far
Rene
Click to expand...
Click to collapse
1. Yes, copy your /clockworkmod to your pc (just for double safety) dont cut it or move it, you need it on your internal sd card always, if you wanted to restore it again... and dont rename it (you will end up with message md5 missmatch!)
2. of course
3. Every new custom kernel like Philz kernel ( for ICS TW and JB TW) http://forum.xda-developers.com/showthread.php?t=1901191
or hydracore (not working on TW JB, but works on all other) http://forum.xda-developers.com/showthread.php?t=1749863
have built in CWM 6.x.x.x , You can recognize them by the gray background in CWM recovery. (there is no need to install independet CWM or something else, like you do on your stock GB kernel)
They are built in almost every custom rom, and these kernel are safe for wipe.
3.1 . So if you flashed new custom TW ics or jb, and after playing with them, you want back to your nandroid backup, just go boot in recovery (now you see a grey background CWM6) do all the wipes (in my experience the best way is: (advanced > wipe dalvik cache, go back > wipe cache, then wipe/data factory reset, then go into mounts and storage > format cache,system,data and preload , dont format emmc and sd card. go back into backup/restore > restore from (internal sd card or some other place depends on where you place your backup)
4. of course, when youo see a message backup complete, reboot it
I am planning to flash a custom rom on my phone (for the first time).
Model : Xperia SP(C5302)
Build : 12.1.A.1.205 (Stock) running JB 4.3 with LB
I have rooted my phone using the towelroot method and installed supersu. I have also installed custom recovery from here http://forum.xda-developers.com/showthread.php?t=2649923
I am planning to flash this custom rom http://forum.xda-developers.com/xperia-sp/development/cyanogenmod-11-locked-bootloader-users-t2868398
So I have a few questions that I am not clear about(even after searching the forums). And sorry if they are dumb. I really want to understand as much as possible before flashing roms.:fingers-crossed:
1. After reading the thread of my recovery, from what I understand, the recoveries are installed in /system. But on OP of the custom rom, I am about to install, there is an instruction to format /system before flashing the rom. So my question is if I format the /system partition, won’t my recoveries be removed (by the recoveries itself) before I even flash the rom?
2. Also will the recovery still be available to me if say I enter bootloop for some reason during flashing the rom?(asking for the same reason as above that is wiping my /system should also remove my recoveries)
3. Does CM 11 come with any inbuilt custom recovery? If not can I install the one I am already using (assuming installing a custom rom will remove my installed recoveries)?
4. Say I screw up during the flashing procedure. So if I want to rectify this I should first flash the stock .205 ftf, root, install a recovery again and then restore using the nandroid backup. Am I correct?
5. Is it necessary to wipe cache and dalvik cache before flashing rom? I see this instruction in some roms but not in others. And dalvik should be wiped after flashing rom and gapps, right?
6. Should I install supersu again after I flash the rom. I read in an article that it causes problems with CM. As far as I know CM11 comes pre-installed with superuser. But it also supposedly causes some problems.
7. Is it safe to restore user app+data, messages and contacts backed up using Titanium backup on a newly flashed rom? I have seen conflicted views on this.
Click to expand...
Click to collapse
And that’s it for my questions (for now at least... ).
A Big Thanks in advance for all your helpful answers
Prat92 said:
I am planning to flash a custom rom on my phone (for the first time).
Model : Xperia SP(C5302)
Build : 12.1.A.1.205 (Stock) running JB 4.3 with LB
I have rooted my phone using the towelroot method and installed supersu. I have also installed custom recovery from here http://forum.xda-developers.com/showthread.php?t=2649923
I am planning to flash this custom rom http://forum.xda-developers.com/xperia-sp/development/cyanogenmod-11-locked-bootloader-users-t2868398
So I have a few questions that I am not clear about(even after searching the forums). And sorry if they are dumb. I really want to understand as much as possible before flashing roms.:fingers-crossed:
And that’s it for my questions (for now at least... ).
A Big Thanks in advance for all your helpful answers
Click to expand...
Click to collapse
First of all, I am only explaining the one I know about
1. Well, wiping the system will remove the recovery. That's why you'll have to flash the ROM after wiping the system. Do not ever reboot the phone after wiping the system but haven't yet flashed the ROM zip, else you'll have to do more work to flash the Stock ROM. This is due to the fact your phone does not have an OS to boot into! When flashing the ROM zip, the recovery will be automatically installed.
2. This is based on luck, most of time you'll end up unable to boot into anything. A fix is to flash the Stock ROM again.
3. Every ROM has recovery built with it (unless stated otherwise in the thread)! Upon flashing, it will be automatically installed too.
4. The methods you mentioned is correct. However, only restore the nandroid backup if you want to stay on stock. You could always retry to flash the ROM again. Nandroid backup is an image backup of your android. If you restore your nandroid backup, you'll end up with your previous version of android (like the way before you started flashing the ROM)
5. Wiping /cache and dalvik-cache is a really good practise! It doesn't really matter when you will need to wipe them, but personally I wipe them all before flashing the ROM. Wiping /data and performing a factory reset through recovery is recommended if you're coming from a different ROM. That's why backing up user apps through TiB (Titanium Backup) is recommended for you to easily get your installed apps back. Remember, nandroid backup and apps backup from TiB is different to each other.
6. No, this might cause extreme conflicts. No, I am using SuperUser as long as I have used CM. It never fails to give root permission at all despite the hatred I sense in some apps that overly-recommends SuperSU.
7. Of course it is very safe to restore them backups with TiB. However, based on my experience, messages and contacts were unable to be restored due to the difference in ROM version. I don't know if anyone else faces the same problem as mine. As of this, I really recommend your contacts to be synced with Google.
Heads up!
Based on this post, the dev of the ROM you wanted to flash, MrSteve555, recommends PhilZ when flashing the ROM.
TechnoSparks said:
First of all, I am only explaining the one I know about
1. Well, wiping the system will remove the recovery. That's why you'll have to flash the ROM after wiping the system. Do not ever reboot the phone after wiping the system but haven't yet flashed the ROM zip, else you'll have to do more work to flash the Stock ROM. This is due to the fact your phone does not have an OS to boot into! When flashing the ROM zip, the recovery will be automatically installed.
2. This is based on luck, most of time you'll end up unable to boot into anything. A fix is to flash the Stock ROM again.
3. Every ROM has recovery built with it (unless stated otherwise in the thread)! Upon flashing, it will be automatically installed too.
4. The methods you mentioned is correct. However, only restore the nandroid backup if you want to stay on stock. You could always retry to flash the ROM again. Nandroid backup is an image backup of your android. If you restore your nandroid backup, you'll end up with your previous version of android (like the way before you started flashing the ROM)
5. Wiping /cache and dalvik-cache is a really good practise! It doesn't really matter when you will need to wipe them, but personally I wipe them all before flashing the ROM. Wiping /data and performing a factory reset through recovery is recommended if you're coming from a different ROM. That's why backing up user apps through TiB (Titanium Backup) is recommended for you to easily get your installed apps back. Remember, nandroid backup and apps backup from TiB is different to each other.
6. No, this might cause extreme conflicts. No, I am using SuperUser as long as I have used CM. It never fails to give root permission at all despite the hatred I sense in some apps that overly-recommends SuperSU.
7. Of course it is very safe to restore them backups with TiB. However, based on my experience, messages and contacts were unable to be restored due to the difference in ROM version. I don't know if anyone else faces the same problem as mine. As of this, I really recommend your contacts to be synced with Google.
Heads up!
Based on this post, the dev of the ROM you wanted to flash, MrSteve555, recommends PhilZ when flashing the ROM.
Click to expand...
Click to collapse
Thanks for such detailed answers. That cleared most of my doubts
Just some last few questions(promise!)
1. If wiping /system does remove the recovery before I install the rom, how is it possible to access it even to flash the rom? Shouldn't it like just close right when I wipe /system. Or does it not work like that?
2. Just to be sure the nandroid backup I made on my stock rom won't work if I later try to flash it through recovery while using CM,right?
Prat92 said:
Thanks for such detailed answers. That cleared most of my doubts
Just some last few questions(promise!)
1. If wiping /system does remove the recovery before I install the rom, how is it possible to access it even to flash the rom? Shouldn't it like just close right when I wipe /system. Or does it not work like that?
2. Just to be sure the nandroid backup I made on my stock rom won't work if I later try to flash it through recovery while using CM,right?
Click to expand...
Click to collapse
1. Wiping system wont close the recovery at all. It still runs and you can still navigate within it. But remember do not reboot unless you've flashed the ROM! The mechanism of how the magic works is yet to be acknowledged. So I can't tell why it doesn't closes upon wipe. My best guess here is that the recovery might be running on a temporary partition perhaps. I hope a developer see this post and explains the magic.
2. Nandroid backup works all the time (if they are no errors when you are creating them). Nandroid backup is simply a backup of your whole device. If you're on CM, restoring nandroid backup will get your phone back to the way when you attempted the nandroid backup (stock ROM, rooted, and triple recoveries installed). Nandroid backup is useful when you're about to try something that may damage your ROM, without doing so much work to restore your device.
Say, you created a nandroid backup in cwm in which Cyanogenmod was installed. And then you flashed something afterwards. If that "something" damages the ROM and gives you bootloop, you can simply flash Stock ROM, root it again, install recoveries again, and restore the nandroid backup. Then, voilà, cyanogenmod is back. This will simplify your work rather than flash CM again, then gapps, then restore your apps and all those other things that will consume so much time
So a new nandroid backup will backup the whole device, in a form of an image.