Related
Since I was an android virgin until just before Christmas, I'm still trying to get to grips with all the cool stuff that can be done.
I've rooted the phone and unlocked the bootloader. Everything else is currently stock.
I don't want to go to Clockwork recovery, or Cyanogen/MoDaCo ROMs. Not yet. I'm still savouring the "Google Experience".
However, I have three questions (which may turn into many more ) about flashing new kernels, and I don't want to clog up any specific kernal thread with noob questions.
1) Does flashing a kernel wipe the whole phone the way unlocking the bootloader did?
2) If you're running stock ROM with new kernel, will you still pick up OTA updates as before?
3) How do you get the original kernal back if you don't like the new one (or if it just goes totally tits up)?
Thanks guys
EDIT: Yes, I realise there is a search and this may well have been asked before. But before someone points this out, I'd like to mention that if you do a search for "android kernel", you get approximately 1 bajillion hits...
Mr.Clark said:
Since I was an android virgin until just before Christmas, I'm still trying to get to grips with all the cool stuff that can be done.
I've rooted the phone and unlocked the bootloader. Everything else is currently stock.
I don't want to go to Clockwork recovery, or Cyanogen/MoDaCo ROMs. Not yet. I'm still savouring the "Google Experience".
However, I have three questions (which may turn into many more ) about flashing new kernels, and I don't want to clog up any specific kernal thread with noob questions.
1) Does flashing a kernel wipe the whole phone the way unlocking the bootloader did?
2) If you're running stock ROM with new kernel, will you still pick up OTA updates as before?
3) How do you get the original kernal back if you don't like the new one (or if it just goes totally tits up)?
Thanks guys
EDIT: Yes, I realise there is a search and this may well have been asked before. But before someone points this out, I'd like to mention that if you do a search for "android kernel", you get approximately 1 bajillion hits...
Click to expand...
Click to collapse
1) No, you should not wipe anything before flashing a kernel. You should however do a NANDroid backup.
2) You should be able to but it will wipe your kernel.
3) Restore your backup from #1
Mr.Clark said:
Since I was an android virgin until just before Christmas, I'm still trying to get to grips with all the cool stuff that can be done.
I've rooted the phone and unlocked the bootloader. Everything else is currently stock.
I don't want to go to Clockwork recovery, or Cyanogen/MoDaCo ROMs. Not yet. I'm still savouring the "Google Experience".
However, I have three questions (which may turn into many more ) about flashing new kernels, and I don't want to clog up any specific kernal thread with noob questions.
1) Does flashing a kernel wipe the whole phone the way unlocking the bootloader did?
2) If you're running stock ROM with new kernel, will you still pick up OTA updates as before?
3) How do you get the original kernal back if you don't like the new one (or if it just goes totally tits up)?
Thanks guys
EDIT: Yes, I realise there is a search and this may well have been asked before. But before someone points this out, I'd like to mention that if you do a search for "android kernel", you get approximately 1 bajillion hits...
Click to expand...
Click to collapse
flashing a kernel doesnt wipe your phone, it simply replaces whatever kernel is in your phone at the moment.
kenvan19 said:
1) No, you should not wipe anything before flashing a kernel. You should however do a NANDroid backup.
Click to expand...
Click to collapse
Right. Guess what my next question will be
kenvan19 said:
2) You should be able to but it will wipe your kernel.
3) Restore your backup from #1
Click to expand...
Click to collapse
2) Is fine, as once I've figured out how to NANDroid backup, re-flashing it should be easy enough. 3) Is fine, once I've taken the backup in the first place.
simms22 said:
flashing a kernel doesnt wipe your phone, it simply replaces whatever kernel is in your phone at the moment.
Click to expand...
Click to collapse
Excellent, thanks!
Ok. So all the NANDroid guides I've seen here start with ADB and Fastboot (which I remember doing when I rooted the phone), but then they say about flashing alternative recovery images... is that necessary? Or is that what the fastboot thing was?
I've just checked and ADB still works, so if fastboot is an alternative recovery image, am I good to take a NANDroid backup, and if so, how do I do that?
If Fastboot is not an appropriate recovery image, do I need Clockwork Recovery (is that different to the "CWM" I see mentioned around here?)?
The Nexus S guide I read said that there was a NANDroid option in the Clockwork Recovery. Now this isn't in my recovery options, obviously, but I assume with ADB, a command prompt and a few instructions, I can do it manually. Maybe.
Bear with me guys, I'll get there eventually...
Ok, scratch the NANDroid questions. NANDroid is a backup tool contained in the Clockwork Mod recovery image.
Using Fastboot, you can boot from the recovery image without flashing it (using this guide here), so I've still got whatever recovery image I got when I did Paul's rooting technique, but have booted into CWM once to do the NANDroid backup.
I may flash CWM later, that's a task for another day.
So. Now I've got the backup (and thus, booting from that image again later, the ability to restore from it), I can try flashing the kernel. Which I can do from the regular recovery image.
Mr.Clark said:
Ok, scratch the NANDroid questions. NANDroid is a backup tool contained in the Clockwork Mod recovery image.
Using Fastboot, you can boot from the recovery image without flashing it (using this guide here), so I've still got whatever recovery image I got when I did Paul's rooting technique, but have booted into CWM once to do the NANDroid backup.
I may flash CWM later, that's a task for another day.
So. Now I've got the backup (and thus, booting from that image again later, the ability to restore from it), I can try flashing the kernel. Which I can do from the regular recovery image.
Click to expand...
Click to collapse
To flash from the stock recovery you must rename files update.zip just FYI. I've said it before and I'll say it again; there are no possible negative repercussions from flashing a non-stock recovery image.
Apparently it was unsigned, so the stock recovery wouldn't do anything with it.
Back in CWM and it worked fine. I may have to flash that, it's damned useful...
So now I have a new kernel!
Thanks for all your help
Mr.Clark said:
Apparently it was unsigned, so the stock recovery wouldn't do anything with it.
Back in CWM and it worked fine. I may have to flash that, it's damned useful...
So now I have a new kernel!
Thanks for all your help
Click to expand...
Click to collapse
It is very useful indeed! Enjoy your kernel
Ah, am I right in thinking that if I flash CWM, I can't revert back to stock if I want to?
I'm hoping to do nothing permanent at this point...
Mr.Clark said:
Ah, am I right in thinking that if I flash CWM, I can't revert back to stock if I want to?
I'm hoping to do nothing permanent at this point...
Click to expand...
Click to collapse
Yes, you can flash back. Not only can you but depending on how you did flash the recovery the phone may revert it on your behalf. I know mine has several times, like any time I reboot. There's ways to stop it from doing that but I don't mind.
To get the stock recovery back if it isn't automatically restoring means flashing an NAND from the Dev section here.
I didn't want to open a new thread just to ask this so I hope it's OK to post it here.
I'm very interested in getting supercurio's voodoo sound and ext4 mod on my Nexus S but I don't need/want the overclocked frequencies and other stuff included on most of the kernels out there. You guys know any kernel that I could flash to get those and keep my stock fequencies?
Thanks
Sent from my Nexus S using XDA App
nicholasbgr said:
I didn't want to open a new thread just to ask this so I hope it's OK to post it here.
I'm very interested in getting supercurio's voodoo sound and ext4 mod on my Nexus S but I don't need/want the overclocked frequencies and other stuff included on most of the kernels out there. You guys know any kernel that I could flash to get those and keep my stock fequencies?
Thanks
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
I use overclocked with voodoo and setcpu...you can keep it set to 1000 and not over the stock limit.
Bionix 1.3 is solid and no OC
Sent from my Nexus S using XDA App
nicholasbgr said:
I didn't want to open a new thread just to ask this so I hope it's OK to post it here.
I'm very interested in getting supercurio's voodoo sound and ext4 mod on my Nexus S but I don't need/want the overclocked frequencies and other stuff included on most of the kernels out there. You guys know any kernel that I could flash to get those and keep my stock fequencies?
Thanks
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
If you flash the Trinity max kernel and do not adjust the clock you will have everything your asking for. This kernel boots at stock and has Voodoo and ext4 built in.
icandy75 said:
If you flash the Trinity max kernel and do not adjust the clock you will have everything your asking for. This kernel boots at stock and has Voodoo and ext4 built in.
Click to expand...
Click to collapse
So your saying the trinity max kernel has voodoo built in?
Sent from my bionix nexus s
mrnexus said:
So your saying the trinity max kernel has voodoo built in?
Sent from my bionix nexus s
Click to expand...
Click to collapse
That is exactly what he is saying, yes =)
Thanks guys, I'm gonna take a look at your recommendations as soon as I get some spare time.
Do all the trinitys have voodoo
Sent from my bionix nexus s
mrnexus said:
Do all the trinitys have voodoo
Sent from my bionix nexus s
Click to expand...
Click to collapse
No, only the most recent ones.
kenvan19 said:
No, only the most recent ones.
Click to expand...
Click to collapse
Such as:
Sent from my bionix nexus s
I'm on Virtuous 2.35.0 w/Uv5 kernel.
I just want to test this ROM with different a Kernel and/or Radio,
how can i backup it ENTIRELY, like a nandroid, but with kernel/radio so i can revert them?
Becouse i know CWM nandroid gets only System/Data etc etc,
I need a tool to get them
surtrafl said:
I'm on Virtuous 2.35.0 w/Uv5 kernel.
I just want to test this ROM with different a Kernel and/or Radio,
how can i backup it ENTIRELY, like a nandroid, but with kernel/radio so i can revert them?
Becouse i know CWM nandroid gets only System/Data etc etc,
I need a tool to get them
Click to expand...
Click to collapse
CWM NANDROID backs up the kernel too. Not sure how you can get the radio...I think older versions of cwm backed up radio too. You might can find an older version to try.
surtrafl said:
I'm on Virtuous 2.35.0 w/Uv5 kernel.
I just want to test this ROM with different a Kernel and/or Radio,
how can i backup it ENTIRELY, like a nandroid, but with kernel/radio so i can revert them?
Becouse i know CWM nandroid gets only System/Data etc etc,
I need a tool to get them
Click to expand...
Click to collapse
As Nickovtyme said, CWM backs up everything in internal memory, including the kernel. However, CWM does not back up the radio. I'm not aware of any utility that will back up the radio. Your radio version will always be the same regardless of what ROM you're running, until you manually flash a new radio version in bootloader mode.
Ok, thanks for answers, i guess i will need just to try it...
If I am using this forum improperly or asking too many questions on one thread that don't fit together, please inform me kindly.
Stock on 2.3.4 hboot 1.18 I rooted with revolutionary, and installed teamwin recovery. I am using the newest CM7 from the rootzwiki I believe. This is what I flashed anyway - update-cm-7.1.0-SelfKANG10-Sensation-signed.zip. Now I am 2.3.7 kernel ver 2.6.35.13_CyanogenMod+ [email protected] #1
ROM Manager app is now on my phone, but it says I need Clockwork recovery to use it. I also read through google and forums that just flashing between ROMs you have to have like same kernels and stuff like that, which I am very noob too.
I'm having Google framework FC issues and no GPS on CM7.
I think I want to switch from CM7 to this MIUI zip I got at MIUI.us - MIUI.us_pyramid_1.12.9.01_Eng_Deo_ZipA_Signed.zip
Which recovery SHOULD I be using? If clockwork is way to go, can I just go to my ROM manager app where it says, "flash Clockwork to this phone"?
If I want to change ROMs, what do I need and NOT need to backup? What exactly is "nandroid" back up, is it better than backup apps? Do I need to backup ROMs, and what exactly is that and what is proper way?
Do I have to wipe then restore everytime? Had some issues with this first time from stock sense to CM7, couldn't get Titanium or mybackup pro to restore my apps, and my contacts are quadrupled in size and organized oddly.
What is the best way to switch ROMs, flashing, ROM Manager, something else?
IF I wanted to run only one ROM for lets say 6 months, after I flash it, can I delete that zip from sd card, and phone will still work?
Suggest a ROM for me if you like also
_DavidWebb said:
If I am using this forum improperly or asking too many questions on one thread that don't fit together, please inform me kindly.
Stock on 2.3.4 hboot 1.18 I rooted with revolutionary, and installed teamwin recovery. I am using the newest CM7 from the rootzwiki I believe. This is what I flashed anyway - update-cm-7.1.0-SelfKANG10-Sensation-signed.zip. Now I am 2.3.7 kernel ver 2.6.35.13_CyanogenMod+ [email protected] #1
Click to expand...
Click to collapse
So standard CM7, use the CM7 thread here on XDA as the reference.
ROM Manager app is now on my phone, but it says I need Clockwork recovery to use it. I also read through google and forums that just flashing between ROMs you have to have like same kernels and stuff like that, which I am very noob too.
Click to expand...
Click to collapse
I personally don't use ROM Manager but use ClockworkMod alot. There is a thread here on CWM 5.0.2.0 somewhere, if I remember I'll add it.
Kernels need to be Compatible with the ROM. This compatibility requitement is in terms of Kernel revision (i.e. old Kernel might not work with a newer ROM). More importantly though there are two basic typed of ROM on the Sensation, namely Sense and AOSP based ones. These two varieties have completely different Kernels so you will need one from that branch. For example Faux makes two Kernel types AOSP (e.g. for CM7 and MIUI) and all the Sense derivatives.
I'm having Google framework FC issues and no GPS on CM7.
I think I want to switch from CM7 to this MIUI zip I got at MIUI.us - MIUI.us_pyramid_1.12.9.01_Eng_Deo_ZipA_Signed.zip
Which recovery SHOULD I be using? If clockwork is way to go, can I just go to my ROM manager app where it says, "flash Clockwork to this phone"?
Click to expand...
Click to collapse
I'd just install CWM directly from the PG58IMG.zip file, but as I said I don't use ROM Manager.
If I want to change ROMs, what do I need and NOT need to backup? What exactly is "nandroid" back up, is it better than backup apps? Do I need to backup ROMs, and what exactly is that and what is proper way?
Click to expand...
Click to collapse
The Nandroid backup performs a backup of the various phone partitions onto the SD-Card. This allows for a point in time backup and recovery of the phone.
ALWAYS do a Nandroid backup before playing with a new ROM or Kernel, JUST IN CASE **** happens.
Do I have to wipe then restore everytime? Had some issues with this first time from stock sense to CM7, couldn't get Titanium or mybackup pro to restore my apps, and my contacts are quadrupled in size and organized oddly.
Click to expand...
Click to collapse
Never had this issue with contacts, I keep all mine synced with gmail. New ROM and they automatically update. I don't often use TB, others can probaby advise.
What is the best way to switch ROMs, flashing, ROM Manager, something else?
Click to expand...
Click to collapse
I manually install the ROM Zip from CWM then wipe cache, Dalvik Cache and Fix permissions, YMMV.
IF I wanted to run only one ROM for lets say 6 months, after I flash it, can I delete that zip from sd card, and phone will still work?
Click to expand...
Click to collapse
Yes
Suggest a ROM for me if you like also
Click to expand...
Click to collapse
Depends if you want a Sense or ASOP based phone.
Ok ill try to hit all the points for you. First you can use any recovery you like (cwm, twrp, 4ext) but Rom manager will only work with cwm. You can get to your recovery 2 ways, either hold the power button and select reboot then recovery (note some roms don't have this) second power off your phone completely and hold vol down and power until you get to hboot and select recovery (note fastboot must be turned off in settings). Personally I don't recommend using Rom manager to flash your roms go to the recovery itself.
Flashing roms: it is recommended to wipe data wipe cache and wipe dalvik cache (its sometimes found under advanced like in cwm) and when you get that part down it isn't always neccesary but wipe system partition... Never ever wipe anything else... Unless your cleaning your battery stats but let's stick to the basics.
If you are just flashing an update to a Rom sometimes you don't have to wipe anything (i.e. cm7 v9 flashing to cm7 v10) but anytime you change Rom bases always wipe. Especially if you are going from cm7 to a sense 3 Rom and also sense 3.5 and vice versa. Also there are several superwipe files from several devs. I suggest using one of these. All you do is flash it like a Rom in recovery. They automatically wipe for you.
Kernels are labeled with the base you need I.e cm7 or sense review the kernels threads for more info.
Next, if you haven't wiped and tried a couple Roms that explains the contact problems and GPS issues.
A nandroid put simply is just a backup of your current Rom. Go to backup in your recovery and backup your current Rom. Is saves every little bit of your current Rom. You need to do this in case something goes wrong or if you don't like the new one. Then you can simply restore it if you need to.
After you flash a Rom it is in your phones memory. You can delete it off your sdcard no problems, unless you want to flash it again at another time. You can also delete old nandroids if you need to just keep at least the last one you made. They are large sometimes.
I have used about every Rom here I suggest mikes hdrevolution or cdtdroids Roms if you don't want cm7 (which is often referred to as aosp) if you want to try another aosp Rom try hypersensation it works good too.
And you used this forum perfectly asking questions in the q&a good job some people don't get that.
Edit: he beat me to the answers while I was typing lol. Also I hate autocorrect had to clean up my post hope it didn't confuse you.
Sent from my HTC Sensation XE with Beats Audio using xda premium
gol_n_dal;20335770
The Nandroid backup performs a backup of the various phone partitions onto the SD-Card. This allows for a point in time backup and recovery of the phone.
ALWAYS do a Nandroid backup before playing with a new ROM or Kernel said:
I also can't get the multi quote to work like you did, how does that work lol?
Click to expand...
Click to collapse
Ok, this forum is awesome, and I will defintely check out the other forums for kernels and other topics. I am understanding most of your replies, but as you see I get other questions from some answers lol. I did just wipe everything(data factory reset) again, and installed the MIUI and when I signed in my google on setup, all my apps started downloading from market and my contacts were all there in a little bit better fashion than before. Also, when I put CM7 that was my FIRST ROM and immediately after my FIRST time attempting and successfully doing a root s-off. Now MIUI makes my 2nd ROM. I'm sure if I hang around here enough I'll get the hang of it all and start to figure it all out better. I vultured around these forums for 4 months with a stock phone before I did anything, and my phone isn't bricked so I'm happy about that.
For some more detail try checking out the stickies in the development section there are some awesome guides and answers there too.
Sent from my HTC Sensation XE with Beats Audio using xda premium
Dear all,
I've been reading on this forum for some time because I rooted an Ainol tablet an a Sony phone with help from here before. But now I am totally stuck with my newly acquired 2nd-hand HTC Sensation.
I successfully flashed the Revolution Rom HD 7.3 to the phone but even with OC Daemon (or any other CPU tweaker) I cannot go over 1188000 as the max value. No overclocking possible.
Phone specs:
* bootloader unlocked (this means 'rooted', right?)
* Hboot 1.27.0000 (Pyramid)
* Firmware 3.33.401.1 series.
* S-ON RL.
Further info is eMMC-boot, and it has fastboot on it.
Is it necessary to make the phone S-OFF in order to enjoy the overclocking benefits of the custom Rom?
If so, do I need to do a factory reset to stock ICS rom before I can do the S-OFF?
What is the best method for my specs to get to S-OFF?
I tried in various ways with the Revolution Rom on there, but I didn't manage to do it.
I saw this method ( http://forum.xda-developers.com/showthread.php?p=41244866 ) but I wonder if there isn't another way? I saw other methods for other Hboot numbers but not for Hboot 1.27 ... and if I do use this method, can I do it with the Revolution Rom installed?
I tried flashing various kernels not in the stock rom (some of which wouldn't flash and some of which caused the famous wi-fi error - luckily I did a Nandroid backup of my last known good configuration... had the wi-fi error twice already now). It seems also that i get some sort of 'image error' or something every time the phone goes into bootloader. I was unsure what to do with the radio file that came with the rom. I tried to flash that with CWM because I didn't know any other way, and maybe that was a mistake? I read that this may cause battery issues, and it does seem as if the battery drained fairly quickly especially while on 3g or WiFi despite black screen etc.
Please help.
PS I can provide screenshots if it helps.
Hi.
1. No, unlocked BL does not mean rooted, it's irrelative. But as you have a custom ROM installed after unlocking bootloader, you're rooted. Because custom ROMs are normally pre-rooted.
2. S-off is not required to have your CPU/GPU overclocked, but you have booted up your ROM, this means you have a flashed kernel. But I suspect something right now. Did you perform a full wipe (deleting all data on internal partitions, data, system, cache and boot)? I don't think you have done. Therefore, you might still have stock kernel, which is not overclockable. To flash a kernel without a computer, you must have gained s-off. Otherwise you may not flash any kernel flawlessly, unless you either get s-off or flash the boot.img of the kernel using fastboot commands (as you mentioned, I don't think you know it, do you?) Post a screenshot of your kernel info at about phone - software section.
SENT FROM WHATEVER IS NOT SOMETHING TO BE LOCKED AT, THE THING IS THAT IT IS SENT.
ashkan-khatar said:
To flash a kernel without a computer, you must have gained s-off. Otherwise you may not flash any kernel flawlessly, unless you either get s-off or flash the boot.img of the kernel using fastboot commands (as you mentioned, I don't think you know it, do you?) Post a screenshot of your kernel info at about phone - software section.
SENT FROM WHATEVER IS NOT SOMETHING TO BE LOCKED AT, THE THING IS THAT IT IS SENT.
Click to expand...
Click to collapse
he can flash kernel without pc(if it is as a flashable zip file)
with 4ext recovery and smartflash enabled
edit: OP you can't flash radio while on S-ON and that file can be flashed only from bootloader
you were thinking that you flashed it
and about battery in fresh install don't judge it so quickly
give it 4-5 circle charges until it settles down
then see how it bahaves
rzr86 said:
he can flash kernel without pc(if it is as a flashable zip file)
with 4ext recovery and smartflash enabled
Click to expand...
Click to collapse
Oops... I didn't remember that at all..
SENT FROM WHATEVER IS NOT SOMETHING TO BE LOCKED AT, THE THING IS THAT IT IS SENT.
Thank you to both posters so far.
I do not remember if I did a full wipe at the time.
I just remember it seemed to have fully installed...
Here is the kernel details:
3.0.16-g31a4fc7
[email protected]#1
SMP PREEMPT
This is displayed regardless of which kernel I flashed... even with faux, this is what it would show.
I thought that might be because all kernels mimic the stock kernel...
So can you confirm that this is the stock kernel?
If so, I will go ahead and wipe everything... and start from scratch.
BUT - if I do that and then restore my Nandroid backup - won't the stock kernel be back?
And can I then reflash with faux kernel or any other compatible kernel while keeping my OS configuration?
Extra info:
I have CWMrecovery on it and Fastboot.
The Revolution Rom contains 3 kernels to choose from.
Initially I probably chose stock, but then reflashed the whole thing, trying to change it to on of the other two available choices.
So if I did a complete wipe and factory reset, and then reflashed with one of the other two built-in kernels,
would it then be overclockable?
And what would happen if I then restored my Nandroid backup - would the kernel I chose with the new installation remain in place as the backup is merely the configuration?
bel1eve said:
Extra info:
I have CWMrecovery on it and Fastboot.
The Revolution Rom contains 3 kernels to choose from.
Initially I probably chose stock, but then reflashed the whole thing, trying to change it to on of the other two available choices.
So if I did a complete wipe and factory reset, and then reflashed with one of the other two built-in kernels,
would it then be overclockable?
And what would happen if I then restored my Nandroid backup - would the kernel I chose with the new installation remain in place as the backup is merely the configuration?
Click to expand...
Click to collapse
if you choose one of the other two kernels then you can overclock
when you are restoring a nandroid backup it restores everything(system,data,boot,cache etc)
so if did a nandroid with stock kernel then it will restore that kernel too
edit: i advise to use 4ext recovery for flashing roms and kernels since you are on S-ON
rzr86 said:
if you choose one of the other two kernels then you can overclock
when you are restoring a nandroid backup it restores everything(system,data,boot,cache etc)
so if did a nandroid with stock kernel then it will restore that kernel too
edit: i advise to use 4ext recovery for flashing roms and kernels since you are on S-ON
Click to expand...
Click to collapse
Ok, thank you very much for the insight. Yes, I believe the backup had stock kernel. Must have been...
3 more questions before I consider taking action:
1. How do I get 4ext on there now that I have CWM already?
2. Is there a way to backup my current setup and later restore it minus the kernel?
3. Since my phone runs real smooth as is right now and I don't play 3D games anyway - what noticeable benefits do I get from overclocking?
bel1eve said:
Ok, thank you very much for the insight. Yes, I believe the backup had stock kernel. Must have been...
3 more questions before I consider taking action:
1. How do I get 4ext on there now that I have CWM already?
2. Is there a way to backup my current setup and later restore it minus the kernel?
3. Since my phone runs real smooth as is right now and I don't play 3D games anyway - what noticeable benefits do I get from overclocking?
Click to expand...
Click to collapse
Disclaimer :I don't know much, everything I say could be wrong for all I know. But if It is I hope someone corrects me on it
1. http://androidforums.com/cdma-evo-3...lash-recovery-image-via-fastboot-sd-card.html
The file name for sensation should be PG58IMG.zip
2. Titanium backup
3. If you're getting the level of performance you already want, I don't think there will be any noticeable difference. Most roms come with cpu governor that will adjust the cpu speed depending on task, low cpu to intensive, overclocking increases the maximum allowed, some app will take advantage of this it will drain battery faster and since you don't require more juice why waste battery?
stillsober said:
Disclaimer :I don't know much, everything I say could be wrong for all I know. But if It is I hope someone corrects me on it
1. http://androidforums.com/cdma-evo-3...lash-recovery-image-via-fastboot-sd-card.html
The file name for sensation should be PG58IMG.zip
2. Titanium backup
3. If you're getting the level of performance you already want, I don't think there will be any noticeable difference. Most roms come with cpu governor that will adjust the cpu speed depending on task, low cpu to intensive, overclocking increases the maximum allowed, some app will take advantage of this it will drain battery faster and since you don't require more juice why waste battery?
Click to expand...
Click to collapse
or follow only step 2 from this thread
http://forum.xda-developers.com/showthread.php?t=1631861
for restore yes you can do also an advanced restore from 4ext recovery except titanium backup
just go to backup/restore->advanced restore and choose data
but don't restore system partition if you are coming from different rom or different base because you will have many fc's
Thank you to you both.
PG58IMG.zip - this file is 4ext? I do have this file and remember trying to install it via WMrecovery, but unsuccessful. How do I install it?
So if I understand this right, with Titanium Backup or via a 4ext advanced restore I can backup my whole configaration (installed apps, frozen apps, startup apps, accounts, screen config) for a given Rom? ANd then I can wipe everything and reflash the Rom with the desired kernel and then restore this backup and everything goes?
bel1eve said:
Thank you to you both.
PG58IMG.zip - this file is 4ext? I do have this file and remember trying to install it via WMrecovery, but unsuccessful. How do I install it?
So if I understand this right, with Titanium Backup or via a 4ext advanced restore I can backup my whole configaration (installed apps, frozen apps, startup apps, accounts, screen config) for a given Rom? ANd then I can wipe everything and reflash the Rom with the desired kernel and then restore this backup and everything goes?
Click to expand...
Click to collapse
since you are on S-ON forget any pg58img.zip file
in my previous post i gave you a link on how to install 4ext recovery
about restore absolutely yes but don't restore boot partition
note: another way to install 4ext is to install 4ext updater apk
open the apk
select the touch version if you want
it will download it and install it for you
done:good:
rzr86 said:
or follow only step 2 from this thread
http://forum.xda-developers.com/showthread.php?t=1631861
for restore yes you can do also an advanced restore from 4ext recovery except titanium backup
just go to backup/restore->advanced restore and choose data
but don't restore system partition if you are coming from different rom or different base because you will have many fc's
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What exactly do you mean by "except Titanium Backup" ?
What are "fc's" ?
ANd what do you mean by "base" ? Kernel?
bel1eve said:
What exactly do you mean by "except Titanium Backup" ?
What are "fc's" ?
ANd what do you mean by "base" ? Kernel?
Click to expand...
Click to collapse
the ability for backup/restore exists in recovery not only in titanium backup app
that's what i mean by "except"
fc's->forceclose
it means when you are opening an app(especially a system app)it crashes immediately
by base i mean a different version of android of the same rom or a completely different rom
kernel is the brain between software and hardware
rzr86 said:
the ability for backup/restore exists in recovery not only in titanium backup app
that's what i mean by "except"
fc's->forceclose
it means when you are opening an app(especially a system app)it crashes immediately
by base i mean a different version of android of the same rom or a completely different rom
kernel is the brain between software and hardware
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Click to collapse
@rz86
Thanks for the steps and clarifications. Life got me away from the screen awhile but I've now successfully done what you recommended. Works a charm
I am about to flash my nexus 5 device.
I was wondering.. if i unlock the bootloader and install a custom recovery plus create a backup.. that means ill have basicly a backup on my phone of a factory ROM and kernel right ?
So If i play around with custom roms and Kernels does that mean if I want to go back to stock kernel or/and ROM I can just recover my backup files from ,for example, CWM ?
And also if anyone here knows... how big difference can a kernel for battery life extension make ?
Then..
If I want to flash both.. Custom ROM and Kernel.. Rom comes first ? And if after that .. lets say I have flashed Cyanogenmod , and I have decided to change ROMs , Do I have to flash factory ROM ? Or I can just factory reset and Flash ir over the Cyanogenmod ?
For example.. for elementalX kernel I read this line... "You should only flash ElementalX over the kernel that came with your ROM!!!" I assume that means I do flash the ROM first... and what if I want to change Kernels later on? I re-flash the factory kernel ? And how do I do that?
For now that would be it
Thanks
Yes, installing a custom recovery (I recommend TWRP) allows you to create a backup of the existing ROM for restoration at a later point in time if you don't like the phone's existing ROM. Restoring TWRP backups have always worked except for me except in a couple of situations where I could not boot the restored ROM without first doing a factory wipe of the data and cache partitions.
I can't comment on custom kernels except to say that everyone uses their phone in different ways and getting the best battery life and performance may require a lot of tweaking. You could just try different kernels to see which one suits your needs.
You can restore the ROM's original kernel by extracting the kernel from the original ROM and flashing it. Alternatively, you could dirty flash the over the existing ROM. For example, if you are running CM12.1 2015-12-30 with a custom kernel and you want to go back to CM12.1 2015-12-30 without the custom kernel, you could just re-flash the entire CM12.1 2015-12-30 ROM again.
audit13 said:
Yes, installing a custom recovery (I recommend TWRP) allows you to create a backup of the existing ROM for restoration at a later point in time if you don't like the phone's existing ROM. Restoring TWRP backups have always worked except for me except in a couple of situations where I could not boot the restored ROM without first doing a factory wipe of the data and cache partitions.
I can't comment on custom kernels except to say that everyone uses their phone in different ways and getting the best battery life and performance may require a lot of tweaking. You could just try different kernels to see which one suits your needs.
You can restore the ROM's original kernel by extracting the kernel from the original ROM and flashing it. Alternatively, you could dirty flash the over the existing ROM. For example, if you are running CM12.1 2015-12-30 with a custom kernel and you want to go back to CM12.1 2015-12-30 without the custom kernel, you could just re-flash the entire CM12.1 2015-12-30 ROM again.
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Click to collapse
Thanks!
What advantages does TWRP has over CWM ? And also does it recover other files as well or just the system ones ?
And I guess its safer to just extract the original ROMs kernel.. Just how do i do that ?
TWRP is well supported and features a simple touch interface. TWRP will recover the system and data files.
Not necessarily safer to flash just the kernel rather than the entire ROM. It also saves time and effort because, if the kernel is not extracted and compiled for flashing in recovery, it could cause the phone to bootloop.
I've never extracted the kernel myself but this may help: https://www.youtube.com/watch?v=rLhprnOF6-U
audit13 said:
TWRP is well supported and features a simple touch interface. TWRP will recover the system and data files.
Not necessarily safer to flash just the kernel rather than the entire ROM. It also saves time and effort because, if the kernel is not extracted and compiled for flashing in recovery, it could cause the phone to bootloop.
I've never extracted the kernel myself but this may help:
Click to expand...
Click to collapse
Thanks!
So.. If, lets say, I flash cyanogenmod. Then Flash custom kernel. In order to change other kernel which is also custom , I should first flash the factory ROM which will have kernel on it ? And then reflash the ROM and then flash the new kernel ?
Im sorry , I also read a lot about this and somewhere on the way got really confused , haha.
Let's assume you flash CM version 1 and then you flash custom kernel "Kernel A". If you want to try another custom kernel named "Kernel B", you could just flash "Kernel B" over "Kernel A". If the developer of "Kernel B" cays it must be flashed over CM's original kernal, you could still flash "Kernel B" over "Kernel A" and hope it works. If it doesn't work, you could dirty flash CM version 1 over the existing ROM, then flash "Kernel B".
audit13 said:
Let's assume you flash CM version 1 and then you flash custom kernel "Kernel A". If you want to try another custom kernel named "Kernel B", you could just flash "Kernel B" over "Kernel A". If the developer of "Kernel B" cays it must be flashed over CM's original kernal, you could still flash "Kernel B" over "Kernel A" and hope it works. If it doesn't work, you could dirty flash CM version 1 over the existing ROM, then flash "Kernel B".
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Click to collapse
Thank you. Made things much clearer. Dirty flash means just flashing over the existing custom ROM and Kernel right?
And also.. What about if i have CM and Kernel B ... But i want to go change to ParanoidAndroid and still keep the Kernel B? This ROM would remove the Kernel and I would have to re flash ir right?
And also if I am just switching around ROMs only.. I can just flash them one over another? Perhaps a factory reset is healthy in between though.
Dirty flash means flashing over the existing ROM without wiping the system in recovery.
Flashing any ROM over an existing ROM will replace the system and kernel. If you want to change ROMs altogether, you'd flash PA and then flash Kernel B.
When changing ROMs, I always recommend a full wipe (i.e. system, data, cache).
audit13 said:
Dirty flash means flashing over the existing ROM without wiping the system in recovery.
Flashing any ROM over an existing ROM will replace the system and kernel. If you want to change ROMs altogether, you'd flash PA and then flash Kernel B.
When changing ROMs, I always recommend a full wipe (i.e. system, data, cache).
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Click to collapse
Alright. And just one last thing that I got a bit confused of..
When I root and install a custom ROM, I am not going to receive OTAs. If I just flash the newest custom ROM does that work as an update? Or the newest ROM can ble flashed over the newest android? If so... How do I exactly get the newest updates manually? I have to flash to factory ROM and then somehow flash the update? By far thats how I understood it.
rihz said:
Alright. And just one last thing that I got a bit confused of..
When I root and install a custom ROM, I am not going to receive OTAs. If I just flash the newest custom ROM does that work as an update? Or the newest ROM can ble flashed over the newest android? If so... How do I exactly get the newest updates manually? I have to flash to factory ROM and then somehow flash the update? By far thats how I understood it.
Click to expand...
Click to collapse
Depends on which rom, but updates to custom roms generally can just be flashed over. Not sure of the MM jump, but from KK to LP, it worked fine so far. Whatever you do read the instructions of the rom and kernel builders. You get lucky sometimes and can dirty flash things that should not be dirty flashed, but if there are issues, there are instructions on the rom or kernel page how to start again.
If you are factory modified and want a factory image you need to flash in fastboot. If on a custom rom, well, like I said follow their advice. Make sure to backup with recovery and save on computer before doing anything.
wangdaning said:
Depends on which rom, but updates to custom roms generally can just be flashed over. Not sure of the MM jump, but from KK to LP, it worked fine so far. Whatever you do read the instructions of the rom and kernel builders. You get lucky sometimes and can dirty flash things that should not be dirty flashed, but if there are issues, there are instructions on the rom or kernel page how to start again.
If you are factory modified and want a factory image you need to flash in fastboot. If on a custom rom, well, like I said follow their advice. Make sure to backup with recovery and save on computer before doing anything.
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Click to collapse
Okay, thanks!
And Happy New year to you all!