I seen some people say something about bootstrap recovery but i was curious to know like what roms will work or if it really is possible to flash a custom rom while the boot loader is locked
Custom roms are possible, custom kernel is not. Imperium, mof3.5, rocko, homebase, and jokerskinny are your options. Mof3.5 is the only one still in active development.
Sent from my CM9ed MoPho!
I've done some reading and am still unclear.
So, if I want ICS and still keep my 4G I would:
1) Unlock bootloader
2) Install CM9, make nandroid backup
3) Install custom ROM
4) Relock bootloader
I am certain this has probably been covered somewhere and apologize for asking such a goofy question.
psychotropic said:
I've done some reading and am still unclear.
So, if I want ICS and still keep my 4G I would:
1) Unlock bootloader
2) Install CM9, make nandroid backup
3) Install custom ROM
4) Relock bootloader
I am certain this has probably been covered somewhere and apologize for asking such a goofy question.
Click to expand...
Click to collapse
If you want ICS and 4g you for cant have it. In order to retain 4g the only rom you can use is a locked rom as already stated there are several in the development section.
4g =locked rom.
Sent from my MB855 using xda app-developers app
Related
hey, just wanting to clarify things before i start messing around with flashing. I want to install a custom rom, so ive read guides on rooting and installing recovery, as well as unlocking the bootloader. now i just want to know, if i am rooted and have recovery installed, do i also need to unlock the bootloaders to flash a new rom in recovery, or is that enough to do it. thanks for any feedback
-edit: i noticed looking at the custom roms, it specifies in the topic whether it is for a locked or unlocked bootloader.. so im guessing i just have to choose whether i want to unlock it or lock it depending on the rom i want
That is enough you don't need to unlock bl just be sure to flash a Rom for locked bl
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I would like to put alien rom or some other rom on my phone but I don't want to lose 4G if I don't have to. Thanks for the help.
bryan00798 said:
I would like to put alien rom or some other rom on my phone but I don't want to lose 4G if I don't have to. Thanks for the help.
Click to expand...
Click to collapse
You will lose 4G by unlocking your bootloader. However, there have been methods to run other roms and retaining 4G...it's a process for sure, and your phone won't be updated. The only exception to this is Joker's skinny ROM..check the Dev section. He has a ROM that you can flash through Boostrap Recovery...I think it has been tested, but I'm not sure: http://forum.xda-developers.com/showthread.php?t=1331648
I have some questions that I'd like to get some help with, I'm no means an expert, but I have several questions about installing custom roms,
1.Is rooting the same thing as unlocking a bootloader?
2.Can you flash custom roms without root? like the team viper mod
3.If you can, flash without root, what do you have to do in order to go back to stock rom?
The main reason I want to flash custom roms is because I wanted to see if there is an battery improvement, and I honestly wouldnt mind stock rom, but there are so many apps that you cannot uninstall that run in the background and take up ram.I cant stand the bloatware that comes with the AT&T version of the one x+
thorishere113 said:
I have some questions that I'd like to get some help with, I'm no means an expert, but I have several questions about installing custom roms,
1.Is rooting the same thing as unlocking a bootloader?
2.Can you flash custom roms without root? like the team viper mod
3.If you can, flash without root, what do you have to do in order to go back to stock rom?
The main reason I want to flash custom roms is because I wanted to see if there is an battery improvement, and I honestly wouldnt mind stock rom, but there are so many apps that you cannot uninstall that run in the background and take up ram.I cant stand the bloatware that comes with the AT&T version of the one x+
Click to expand...
Click to collapse
1. No
2. Yes
3. Have the bootloader unlocked and flash the factory stock rom / ruu. Note: once you unlock the bootloader there will be a flag that prompts it's been unlocked. If you relock it the flag will show relocked incase you are asking if you ever need to send the phone for warranty repairs.
Sent from my MB860 using xda app-developers app
So, I bought a GSM Razr Maxx. First android phone and I'm super stoked to get it in the mail! (Currently running symbian 9.2 on a nokia e5!)
I expressed my excitement to one of my friends who is big into Android and he said "but that phone doesn't have a custom bootloader!" and proceeded to tell me that I couldn't install custom roms. Well, after doing some research, I realized that you COULD install custom roms on the Razr maxx using safe strap.
So my questions are
1) What is the advantage of an unlockable bootloader over using safe strap to install custom roms? That is, why would it be good for the razr(maxx) to get an unlockable bootloader?
2) I'm not a complete noob with technology, but explain as simply as possible... what is the difference in the way an unlockable bootloader work and how safe strap works?
3) Why are there so many people saying online that you NEED an unlockable bootloader for custom roms / Cyanogenmod when its simply not the case?
Thanks!
timmytucker718 said:
So, I bought a GSM Razr Maxx. First android phone and I'm super stoked to get it in the mail! (Currently running symbian 9.2 on a nokia e5!)
I expressed my excitement to one of my friends who is big into Android and he said "but that phone doesn't have a custom bootloader!" and proceeded to tell me that I couldn't install custom roms. Well, after doing some research, I realized that you COULD install custom roms on the Razr maxx using safe strap.
So my questions are
1) What is the advantage of an unlockable bootloader over using safe strap to install custom roms? That is, why would it be good for the razr(maxx) to get an unlockable bootloader?
2) I'm not a complete noob with technology, but explain as simply as possible... what is the difference in the way an unlockable bootloader work and how safe strap works?
3) Why are there so many people saying online that you NEED an unlockable bootloader for custom roms / Cyanogenmod when its simply not the case?
Thanks!
Click to expand...
Click to collapse
So in this case the advantage of an unlocked bootloader is that you are able to flash everything like custom kernel, ROM, baseband and radio. With safe strap you only can flash custom ROM and a kexec kernel. So no baseband and radio.
Sent from my XT910 using xda app-developers app
Para94 said:
So in this case the advantage of an unlocked bootloader is that you are able to flash everything like custom kernel, ROM, baseband and radio. With safe strap you only can flash custom ROM and a kexec kernel. So no baseband and radio.
Sent from my XT910 using xda app-developers app
Click to expand...
Click to collapse
thanks for your reply. What is kexec kernal, and what is implied by flashing baseband and radio?
Also, why are there so many forum posts saying you can't flash a custom rom without bootloader? Is safestep a relatively new innovation or are people just dumb =p ?
timmytucker718 said:
thanks for your reply. What is kexec kernal, and what is implied by flashing baseband and radio?
Also, why are there so many forum posts saying you can't flash a custom rom without bootloader? Is safestep a relatively new innovation or are people just dumb =p ?
Click to expand...
Click to collapse
So kexec is a custom kernel which is loaded via the safe strap... Just Google because I am not in the kernel development.... Hmm often the radio is bugged and most of the custom ones haven't got these bugs anymore... The baseband is the more important thing in my opinion because with custom kernel(kexec) and custom baseband it would be possible to activate the lte in the chip which isn't activated in the xt910(more or less rest of the world) but in the xt912(us version)
Sent from my XT910 using xda app-developers app
---------- Post added at 07:49 AM ---------- Previous post was at 07:00 AM ----------
timmytucker718 said:
thanks for your reply. What is kexec kernal, and what is implied by flashing baseband and radio?
Also, why are there so many forum posts saying you can't flash a custom rom without bootloader? Is safestep a relatively new innovation or are people just dumb =p ?
Click to expand...
Click to collapse
Nope its not really flashing you can compare it more or less with virtual box but you start the box instead of booting to the normal ROM you boot to the slot you want to
Sent from my XT910 using xda app-developers app
Well now, when there is BMM available for the RAZR, unlocked bootloader isn't necesary - in BMM you can flash everything, including kernels, roms, radio fw etc., while still preserving your stock system.
timmytucker718 said:
So, I bought a GSM Razr Maxx. First android phone and I'm super stoked to get it in the mail! (Currently running symbian 9.2 on a nokia e5!)
I expressed my excitement to one of my friends who is big into Android and he said "but that phone doesn't have a custom bootloader!" and proceeded to tell me that I couldn't install custom roms. Well, after doing some research, I realized that you COULD install custom roms on the Razr maxx using safe strap.
So my questions are
1) What is the advantage of an unlockable bootloader over using safe strap to install custom roms? That is, why would it be good for the razr(maxx) to get an unlockable bootloader?
2) I'm not a complete noob with technology, but explain as simply as possible... what is the difference in the way an unlockable bootloader work and how safe strap works?
3) Why are there so many people saying online that you NEED an unlockable bootloader for custom roms / Cyanogenmod when its simply not the case?
Thanks!
Click to expand...
Click to collapse
Just tell your friend that we can flash almost anything we can (except custom kernels) and that we even have a recovery that allows us to flash up to 6 ROMs on our device At a time (using bmm). And To tackle the disability of custom kernels we have kexec kernels
Sent from my XT910 using xda app-developers app
Is it possible to use custom ROMs without an unlocked bootloader?
Theoretically, yes. I did on my previous phone. A dev would have to cook a Rom with the stock kernel, etc.
tribalartgod said:
Theoretically, yes. I did on my previous phone. A dev would have to cook a Rom with the stock kernel, etc.
Click to expand...
Click to collapse
could you explain a little more?
because i tried running cyanogenmod on my device but it showed up a security error, which i read somewhere is cause by a locked bootloader
dhruvbatra205 said:
could you explain a little more?
because i tried running cyanogenmod on my device but it showed up a security error, which i read somewhere is cause by a locked bootloader
Click to expand...
Click to collapse
Basically, when a ROM is made... It's either made from 100% scratch, or it's made with another ROM as it's base. For example...Paranoid Android used to be CM based... Meaning it used certain aspects of the CM ROM, but with the look/feel/features of it's own. So for this to work ona locked bootloader, the ROM cooker would have to use Stock as their base, and build up from there... I'm not a developer, so I can't go into extreme detail on this, I'm sorry.
But to properly answer your question... Yes, it is possible to do this... Will it happen?? Probably not, unless someone takes the time to port something over.
You got a security error, because CM changes things from the Stock base... So since it's not build from stock, it won't work unless the bootloader is unlocked, OR unless someone rebuilds it with the stock ROM as it's base.
For anyone else reading this... I hear MIUI is relatively easy to port onto a stock base...
okay. last thing. what 'changes' does the locked bootloader detect that it shows up a security error?
Boot.img has to be signed by LG. Not signed= security error. There is probably more to it than that but that is my understanding.
Sent from my LG-P769 using xda premium
Tablechair said:
Boot.img has to be signed by LG. Not signed= security error. There is probably more to it than that but that is my understanding.
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
So, do you think it might not be an unnecessarily tough and time consuming job to port cyanogenmod in such a way that it would work on a locked bootloader device?
dhruvbatra205 said:
So, do you think it might not be an unnecessarily tough and time consuming job to port cyanogenmod in such a way that it would work on a locked bootloader device?
Click to expand...
Click to collapse
It's do-able... But may be pretty time consuming... If you have never ported before, I suggest starting with MIUI v4. From what I read, it's relatively easy. I know for a fact that MIUI, if ported properly, will work on locked bootloader, as my previous phone ran it with locked bootloader.
There is a workaround here. http://forum.xda-developers.com/showthread.php?t=2099238
Artas and markolino had CM9 working on locked bootloader P760. Anyone interested in trying to port a ROM this way should definitely check out that link.
Sent from my LG-P769 using xda premium
I have a doubt reguarding bootloader unlocking.
It is possible to flash custom recovery using fastboot, and then flash any rom using recovery.
Then is there any need for boot loader unlocking specially??
I flashed recovery using fastboot mode without any special steps of unlocking bbootloader.
And plz tell what is the good way of flashing recovery- through stock recovery or through fastboot mode or terminal or certain tools(mtk)
I have rooted my phone oneplus x using kingroot.... It is rooted.... I have checked it with root checker.... I have installed TWRP on my phone too... N i want to flash the paranoid android 6.0.1 on it.... I have downloaded it along with gapps package........ Now i want to flash ut but i am in doubt wheather it will flash properly because i haven't unlocked my bootloader..... So will i be able to flash this rom without unlocking my phone???