Razr maxx bootloader unlock - Motorola Droid RAZR

Dan Rosenberg has posted qualcomm snapdragon processor bootloader unlock method
Thank my friend Rajan Mehta for information
http://vulnfactory.org/blog/2013/04/08/motorola-bootloader-unlocking/

kshah said:
Dan Rosenberg has posted qualcomm snapdragon processor bootloader unlock method
http://vulnfactory.org/blog/2013/04/08/motorola-bootloader-unlocking/
Click to expand...
Click to collapse
RAZR and RAZR MAXX HD only.

Oh sorry.

Here's a link to a bootloader unlocker by the same guy for RAZR and RAZR MAXX (XT 912)
http://www.droidrzr.com/index.php/topic/6924-root-achieved-for-jb-ota-razrmaxx-xt912/

59eagle said:
Here's a link to a bootloader unlocker by the same guy for RAZR and RAZR MAXX (XT 912)
http://www.droidrzr.com/index.php/topic/6924-root-achieved-for-jb-ota-razrmaxx-xt912/
Click to expand...
Click to collapse
That is root, not bootloader unlock.
This thread needs to have its bootloader locked!
Sent from my DROID RAZR using xda premium

We have Kexec...-why would we need a bootloader unlock? Moto should stuff its locked bootloader in its throat...

But KeXec doesn't give us the ability to flash CWM on an unrooted Phone. This makes rooting a lot easier :thumbup:
Gesendet von meinem XT890 mit Tapatalk 2

i have xt910 ...

maarawoe said:
We have Kexec...-why would we need a bootloader unlock? Moto should stuff its locked bootloader in its throat...
Click to expand...
Click to collapse
The biggest reason to unlock the bootloader is to have the ability to revert your system to a version which the user took a special liking too.
I'm sure some would appreciate the ability to go back to gingerbread or ICS.

Have an look @ the RazR i Forum and you'll see how funny it is to downgrade your OS with an unlocked Bootloader, if you don't know how to do it.
Lucky Me i switch between ICS and JB without issues, but i know how to do it. Most people just started RSD and ended up with an hard bricked Device. We warned them again and again, in every OS related Thread
http://forum.xda-developers.com/showthread.php?t=2218273

so no boot loader unlock then?

BADDINOROX99 said:
so no boot loader unlock then?
Click to expand...
Click to collapse
No
Sent from my DROID RAZR using xda premium

Hmm...I would say a unlocked bootloader would be nice but also provides some more risks to "usual" users. It's much easier to hardbrick your device with an unlocked bootloader, so a locked bootloader safes us from hradbricking our devices in some ways.
In fact we have Kexec which allows us to boot custom kernels - of course we cannot flash anything we want to partitions but in theory with a custom kernel we can create kind of virtual partitions for use with modified baseband...not sure here... but Custom kernels really provide lots of features - besides of the above mentioned things we can really do a lot of things with a kernel

dtrail1 said:
Hmm...I would say a unlocked bootloader would be nice but also provides some more risks to "usual" users. It's much easier to hardbrick your device with an unlocked bootloader, so a locked bootloader safes us from hradbricking our devices in some ways.
In fact we have Kexec which allows us to boot custom kernels - of course we cannot flash anything we want to partitions but in theory with a custom kernel we can create kind of virtual partitions for use with modified baseband...not sure here... but Custom kernels really provide lots of features - besides of the above mentioned things we can really do a lot of things with a kernel
Click to expand...
Click to collapse
I didnt know that
---------- Post added at 08:04 PM ---------- Previous post was at 08:00 PM ----------
I just found your custom kernel... I did flash your BSE 0.4 and just saw where you released 0.4.1.... Do I just flash right over the previous kernel

BOSS__DAWG said:
I didnt know that
---------- Post added at 08:04 PM ---------- Previous post was at 08:00 PM ----------
I just found your custom kernel... I did flash your BSE 0.4 and just saw where you released 0.4.1.... Do I just flash right over the previous kernel
Click to expand...
Click to collapse
yeah but make sure your on an aosp ROM liquid, cm,aokp,Pac ect

Related

[Q] rooting the amaze

So far I have tried every method iI can thank of rooting this phone and noe seem to work. I have done, SuperOneClick, revolutionary, unrevoke, rageagainstthemachine, gingerbreak z4root fr3vo and nothing has worked. Anyone know of any other programs to try get root
None of those that you mentioned work's with 2.3.4 Sense 3.0 , we're going to see if the bootloader's unlocked / locked first & i think it's locked it's not even letting me get into recovery mode it just show's a picture .
It is locked but you can unlock it using htcdev site
Sent from my HTC PG09410 using XDA App
crackeyes said:
It is locked but you can unlock it using htcdev site
Sent from my HTC PG09410 using XDA App
Click to expand...
Click to collapse
Give me a link to unlock my bootloader & i would be glad to create / help with root & check this out while your doing that .
http://forum.xda-developers.com/showthread.php?t=1289119
create a account and just follow the instructions
http://www.htcdev.com/bootloader/
It does not show that it is supported but it worked on my device
This will allow you to flash a custom recover (which we do not have yet) I beleive it does ot give true s-off (flasing radios and what not)
crackeyes said:
create a account and just follow the instructions
http://www.htcdev.com/bootloader/
It does not show that it is supported but it worked on my device
Click to expand...
Click to collapse
Mhm , i might need you to teamview me , i tryed that & it didn't work .
PM me and I can assit. After doing the unlocking it pretty much FDR so make sure you have everything backed up
crackeyes said:
PM me and I can assit. After doing the unlocking it pretty much FDR so make sure you have everything backed up
Click to expand...
Click to collapse
What do you mean ? I just want to unlock it , that way once we get root & recovery or once my bootloader's unlocked i could work on root & a ROM
after it is unlocked it Factory Data Resets the device. In other words just like you pulled it out of the box
When they track phone's they track the MIUI , they don't track the phone , only the MIUI which is on the phone .
crackeyes said:
after it is unlocked it Factory Data Resets the device. In other words just like you pulled it out of the box
Click to expand...
Click to collapse
Just wait. Revolutionary will unlock the bootloader as soon as phone is out. No point officially voiding the warranty when there will be an unofficial way.
Sent from my MyTouch 4G Slide using xda premium
Gold Card?
I don't have this device I was just bored and browsing around, but I'm hearing something about a gold card method?? Not sure if this is any good for you guys but maybe look in to it and it can be used and or modded to work for you guys....
---------- Post added at 02:16 PM ---------- Previous post was at 02:07 PM ----------
I read through this extremely quick so if it is of no use then my apologies.. Just wanted to help some fellow Androidians out lol..
Link: http://android.modaco.com/topic/305672-creating-a-goldcard/
---------- Post added at 02:18 PM ---------- Previous post was at 02:16 PM ----------
That one was for the GoldCard, there is some instructions around for a ton of HTC devices, some real old and some pretty new. You guys should look in to it and maybe try to work something out!
Undeadk9 said:
No point officially voiding the warranty when there will be an unofficial way.
Click to expand...
Click to collapse
I doubt that unlocking will void the warranty. The HTC warranty on the MyTouch 4G only covers physical problems, which are still covered no matter what ROM is installed. I suspect HTC has a pretty similar warranty on all their phones.

[DEV][INFO] ReservedOdm, 4G, Unlocking and Downgrading

I figured it was about time I do a write up about everything we know about ReservedOdm and it's relation to 4G, downgrading and unlocking. For an overview of what ReservedOdm is you can look to this post on the Atrix forum. Essentially ReservedOdm is a one time programmable fuse that is responsible for storing a number of values which relate to Unlock State and OS version.
Now for a few interesting things that we have found out. The unlocked bootloader itself does not seem to care about any values other than the 4 you see at the end of many of the below strings. This appears to be a flag that indicates whether or not the bootloader has gone through the fastboot oem unlock proccess. I will note that merely having the unlocked bootloader flashed does not break 4G on our phones, but having it actually unlocked does.
It would appear that it is possible for ReservedOdm values to be written by both the bootloader and the main OS. This was found out because when people flashed ROM's based on the leaked photon OTA(with bootloader stripped) their phones would have a ReservedOdm value change that would prevent them from flashing any pre-2.3.5 SBF(pudding still work's). It is suspected that the 2.3.5 boot.img is capable of writing these values, since the fuses only changed when using the leaked 2.3.5 boot.img and not with 2.3.5 leak based ROM's that were repacked with an older boot.img.
It would appear that the leaked boot.img does not always change the fuse values, but has happened to some.
The 2.3.5 pudding file that was posted in the unlock thread seems to write a locked 2.3.5 bootloader which prevents both pudding and the unlocked bootloader from being flashed. It has no use and should never bet flashed since all it does is lock phones up.
Since the pudding bootloader seems to be able to be flashed with any ReservedOdm value(but not any bootlaoder), it may still be possible to unlock phones if we can find a way to bypass the bootloader checks on the 2.3.5 bootloaders.
The easiest way to tell if you can unlock is to look at the 3rd non-zero ReservedOdm value. If it is 1 it should be possible to unlock. However if it is 3 it will not be. The 2.3.5 bootloader appears to read this value and will give a sec_exception error if you are trying to flash an older bootloader if the value is 3.
The 2.3.4 SBF's however appear to check the ReservedOdm values and will fail if they are not correct.
I figure I might as well comment on this thread here. From what I can tell this is of no use to us since all the signature checks are respected when you do "fastboot flash rdl.bin". Essentially if you can ramload the rdl you can also flash the pudding file in RSD lite, and if you can't in RSD you also can't here. For electrify users this may be useful under extremely limited circumstances, apparently it can be used to flash pudding from the bootloader of phones shipped with 2.3.5 but not those that have used an OTA. For more info download this.
Recorded Values
Code:
10000000000030001000100004000-photon tried to flash photon 2.3.5 eng? currently unlocked but can't flash normal SBF
10000000000010001000100004000-standard unlocked photon
10000000000010001000100000000-standard locked photon
10000000000010001000100004000-standard unlocked electrify
30000000000030003000100004000-electrify stuck on 2.3.5 previously unlocked bootloader
1000000000003000100004000-electrify stuck on 2.3.5 unlocked bootloader previously installed
20000000000020003000100000000-photon attempted to flash wrong pudding file(2.3.5 testing one)
20000000000030003000100000000-above photon after flashing 2.3.5 electrify SBF
10000000000030003000100004000-photon with 2.3.5 OTA previously unlocked
10000000000030001000100004000-photon with 2.3.5 OTA installed without bootloader(can't downgrade but can unlock)
30000000000030003000100000000 Electrify who performed OTA update to 2.3.5 and now stuck never unlocked
20000000000020001000100004000-Electrify shipped with 2.3.5(unlocked using ramload workaround)
30000000000030002000100000000-Photon with 2.3.5 OTA soak
10000000000010001000100000000-GSM photon on 2.3.5 unknown origin
10000000000010000000100000000-Stock KDDI Photon non-unlocked
10000000000010001000100004000-Unlocked KDDI Photon
20000000000020000000100000000-2.3.5 electrify locked(try modified unlock method from above)
If anyone wants to read their ReservedOdm value simply run from adb:
Code:
adb shell
su
cat /sys/firmware/fuse/ReservedOdm
please post the output if it differs from anything in my list.
30000000000030003000100000000 Electrify who performed OTA update to 2.3.5 and now stuck with locked bl
---------- Post added at 05:56 PM ---------- Previous post was at 05:50 PM ----------
I would also like to say lightsword, that when i fastboot flash RDL3_unlocked_electrify.smg, my phone blinks, then has a steady motologo with no messages. (Unlike other things i flash, I get an error message) I tried oem unlock next but it doesnt do anything on the phone and dos says the typical message. FYI
phince1 said:
30000000000030003000100000000 Electrify who performed OTA update to 2.3.5 and now stuck with locked bl
---------- Post added at 05:56 PM ---------- Previous post was at 05:50 PM ----------
I would also like to say lightsword, that when i fastboot flash RDL3_unlocked_electrify.smg, my phone blinks, then has a steady motologo with no messages. (Unlike other things i flash, I get an error message) I tried oem unlock next but it doesnt do anything on the phone and dos says the typical message. FYI
Click to expand...
Click to collapse
What SBF was that smg file pulled from? Was it the one I posted?
I think so, maybe the engineering sbf??? It's somewhere in that long post we were working from...
phince1 said:
I think so, maybe the engineering sbf??? It's somewhere in that long post we were working from...
Click to expand...
Click to collapse
Ok, I think that was pulled from the 2.3.5 SBF most likely, basically just ramloading the locked bootloader. Doesn't really help us much though.
Hope this helps;
Previously unlocked Photon
flashed 198_6 SBF
flashed 2.3.5 leak, minus ap20bl.img
unlocked using derpunlock
flashed CWM5 recovery
Baseband is now N_01.28.10R
ODM matches the following:
10000000000010001000100004000-standard unlocked photon
Lokifish Marz said:
Hope this helps;
Previously unlocked Photon
flashed 198_6 SBF
flashed 2.3.5 leak, minus ap20bl.img
unlocked using derpunlock
flashed CWM5 recovery
Baseband is now N_01.28.10R
ODM matches the following:
10000000000010001000100004000-standard unlocked photon
Click to expand...
Click to collapse
Do you know if the 2.3.5 leak you flashed has the original leaked boot.img?
Lightsword1942 said:
Do you know if the 2.3.5 leak you flashed has the original leaked boot.img?
Click to expand...
Click to collapse
All I did to the original leak was remove the AP20 bootloader and any script lines referencing it. I just remembered that I have since flashed joker's 1.3 kernel but other than that there have been no changes that should affect ODM data.
Lokifish Marz said:
All I did to the original leak was remove the AP20 bootloader and any script lines referencing it. I just remembered that I have since flashed joker's 1.3 kernel but other than that there have been no changes that should affect ODM data.
Click to expand...
Click to collapse
I had a look at the files and the leaked boot.img does seem to be present in both. Maybe it only writes the value under certain conditions.
So no idea on overwriting the bootloader?
Sent from my Motorola Electrify using Xparent Blue Tapatalk 2
phince1 said:
So no idea on overwriting the bootloader?
Click to expand...
Click to collapse
Well, it may be possible to flash from within bootstrap, however I do not know how to correctly format the bootloader or if the recovery would need to be modified.
So u think we can bypass the fastboot errors by flashing in bootstrap? Sounds good but hopefully someone can help u complie the sbf into a bootstrap zip...
Sent from my Motorola Electrify using Xparent Blue Tapatalk 2
phince1 said:
So u think we can bypass the fastboot errors by flashing in bootstrap? Sounds good but hopefully someone can help u complie the sbf into a bootstrap zip...
Sent from my Motorola Electrify using Xparent Blue Tapatalk 2
Click to expand...
Click to collapse
I think it might be possible, however I can't really say for sure, just an idea really.
Lightsword1942 said:
I think it might be possible, however I can't really say for sure, just an idea really.
Click to expand...
Click to collapse
someone help me get eclipse and sdk working and i will do my best to learn Al i can to help.. .. total noob but very determined to learn! i want unlocked bootloader after2.3.5 update just like everyone else so i can try the flavors of ice cream available. ..... oh and mine is
10000000000030002000100000000
11-0’s. 3-0's,3-0's, 8-0's
so i may have unlocked bootloader or.....?
Sent from my Motorola Electrify using XDA
I'm sure you have seen this, but I thought I would share: http://www.eternityproject.eu/topic/49-bootloader-bypass-kexec-for-motorola-razr/#entry342
Might give you more ideas, if nothing else.
my2cents said:
I'm sure you have seen this, but I thought I would share: http://www.eternityproject.eu/topic/49-bootloader-bypass-kexec-for-motorola-razr/#entry342
Might give you more ideas, if nothing else.
Click to expand...
Click to collapse
i registered on that site but think i entered wrong E-mail oh well. .... can someone please help me with eclipse& android sdk problem? ! i really wanna start helping people abs doing something special!
Sent from my Motorola Electrify using XDA
Don't know if this is worth anything for your endevor, but this is mine after unlock. Running CNA (based on joker's CM9)
10000000000010001000100004000
My MoPho's in the kitchen sink!!
This is a hell of a shot in the dark but if someone wants to try the Japanese photon system and see if wimax works message me on IRC.
moparfreak426 said:
someone help me get eclipse and sdk working and i will do my best to learn Al i can to help.. .. total noob but very determined to learn! i want unlocked bootloader after2.3.5 update just like everyone else so i can try the flavors of ice cream available. ..... oh and mine is
10000000000030002000100000000
11-0’s. 3-0's,3-0's, 8-0's
so i may have unlocked bootloader or.....?
Click to expand...
Click to collapse
You can try flashing the unlocked bootloader, but I'm pretty sure you are stuck for now.
my2cents said:
I'm sure you have seen this, but I thought I would share: http://www.eternityproject.eu/topic/49-bootloader-bypass-kexec-for-motorola-razr/#entry342
Might give you more ideas, if nothing else.
Click to expand...
Click to collapse
Definitely a possibility, but we would need someone who knows how to implement it(not me).
moparfreak426 said:
i registered on that site but think i entered wrong E-mail oh well. .... can someone please help me with eclipse& android sdk problem? ! i really wanna start helping people abs doing something special!
Click to expand...
Click to collapse
Ask they cyanogenmod people how to compile. This probably will not be of much use for unlocking though.
FernBch said:
Don't know if this is worth anything for your endevor, but this is mine after unlock. Running CNA (based on joker's CM9)
10000000000010001000100004000
My MoPho's in the kitchen sink!!
Click to expand...
Click to collapse
Yours looks normal, just don't install any leaks
Lightsword1942 said:
This is a hell of a shot in the dark but if someone wants to try the Japanese photon system and see if wimax works message me on IRC.
You can try flashing the unlocked bootloader, but I'm pretty sure you are stuck for now.
Definitely a possibility, but we would need someone who knows how to implement it(not me).
Ask they cyanogenmod people how to compile. This probably will not be of much use for unlocking though.
Yours looks normal, just don't install any leaks
Click to expand...
Click to collapse
im stuck
Sent from my Motorola Electrify using XDA
Lightsword1942 said:
Yours looks normal, just don't install any leaks
Click to expand...
Click to collapse
No problem there!! The onky thing I plan on installing is other custom ICS or updated and maybe official CM builds!
My MoPho's in the kitchen sink!!

bootloader

Greetings,
I have searched the forums for my answers as well as the web. I am getting a replacement razr from verizon. The rep told me if the phone was rooted or had an unlocked bootloader I would be charged $299. I know if I overlooked anything and this question has been answered I will catch hell .It must be said that I know nothing about rooting and this was my first venture. I used EternityProject EasyRootICS to root. My question is simple did that method of rooting unlock the bootloader on my razr. I wil use superusersu to unroot. Will I have issues with verizon.
Thank you for patience on my ignorance
Jeff
JW Johnson said:
Greetings,
I have searched the forums for my answers as well as the web. I am getting a replacement razr from verizon. The rep told me if the phone was rooted or had an unlocked bootloader I would be charged $299. I know if I overlooked anything and this question has been answered I will catch hell .It must be said that I know nothing about rooting and this was my first venture. I used EternityProject EasyRootICS to root. My question is simple did that method of rooting unlock the bootloader on my razr. I wil use superusersu to unroot. Will I have issues with verizon.
Thank you for patience on my ignorance
Jeff
Click to expand...
Click to collapse
There is no way to unlock the bootloader so if you are rooted, you can simply fastboot the stock rom and you will be unrooted... The rep is an idiot and wants to scare you because if he knows what he is saying he will never tell you anything about unlocked bootloader on the razr as its impossible....
maarawoe said:
There is no way to unlock the bootloader so if you are rooted, you can simply fastboot the stock rom and you will be unrooted... The rep is an idiot and wants to scare you because if he knows what he is saying he will never tell you anything about unlocked bootloader on the razr as its impossible....
Click to expand...
Click to collapse
Thanks for the fast reply. I do not know how to "fastboot the stock rom". Will doing a "full unroot" with superusersu be sufficient. Thank you
If you are stock other than root, i.e. you haven't flashed a leaked OTA or ROM, simply removing root will be sufficient. I would suggest also doing a factory reset.
Sent from my DROID RAZR using xda premium
mrjinglesusa said:
If you are stock other than root, i.e. you haven't flashed a leaked OTA or ROM, simply removing root will be sufficient. I would suggest also doing a factory reset.
Sent from my DROID RAZR using xda premium
Click to expand...
Click to collapse
Thanks all....you guys rock
maarawoe said:
There is no way to unlock the bootloader so if you are rooted, you can simply fastboot the stock rom and you will be unrooted... The rep is an idiot and wants to scare you because if he knows what he is saying he will never tell you anything about unlocked bootloader on the razr as its impossible....
Click to expand...
Click to collapse
That is incorrect. The bootloader can be unlocked on the RAZR, but it will only unlock one of the dual core processors. Your "impossible" statement is invalid.
MyEntityRemains said:
That is incorrect. The bootloader can be unlocked on the RAZR, but it will only unlock one of the dual core processors. Your "impossible" statement is invalid.
Click to expand...
Click to collapse
Perhaps you need to do some reading. There is currently no bootloader that is unlockable on the RAZR whether it be the xt909, xt910 or the verizon xt912 version. Some people do have RAZR's that are engineering samples with the efuse in engineering position allowing them full access. There is however a bypass (kexec by kholk) that allows users to load a custom kernel over top of the factory kernel. Currently the custom kernel can only activate one core however a newer version could possibly be in the works that supports ICS/JB and will allow the second core to be operational. This is not unlocking the bootloader but merely loading a custom kernel by the kexec command available in the kernel.
Regarding what the cs rep said, just do an unroot/factory wipe or better yet flash the fastboot for your respective version. There are several guides in the development section on how to do so using RSDLite.
MyEntityRemains said:
That is incorrect. The bootloader can be unlocked on the RAZR, but it will only unlock one of the dual core processors. Your "impossible" statement is invalid.
Click to expand...
Click to collapse
On ICS there is no way to unlock or bypass our bootloader. Kexec is only available to GSM users on Gingerbread, it's not a bootloader unlock tool, it a bootloader bypass. Yes, it is practically impossible to unlock our bootloaders unless Motorola gives an unlock OTA or tool. The reason for this is that there is triple band RSA encryption on it, it would take an insane amount of time for even the most powerful computer that could be sold on the market today to unlock it.
evonc said:
Perhaps you need to do some reading. There is currently no bootloader that is unlockable on the RAZR whether it be the xt909, xt910 or the verizon xt912 version. Some people do have RAZR's that are engineering samples with the efuse in engineering position allowing them full access. There is however a bypass (kexec by kholk) that allows users to load a custom kernel over top of the factory kernel. Currently the custom kernel can only activate one core however a newer version could possibly be in the works that supports ICS/JB and will allow the second core to be operational. This is not unlocking the bootloader but merely loading a custom kernel by the kexec command available in the kernel.
Regarding what the cs rep said, just do an unroot/factory wipe or better yet flash the fastboot for your respective version. There are several guides in the development section on how to do so using RSDLite.
Click to expand...
Click to collapse
Unlocked/bypassed = same result!
MyEntityRemains said:
Unlocked/bypassed = same result!
Click to expand...
Click to collapse
You also need to do some reading, Kexec is just a bypass for custom kernels not radios which is what you can get when it's unlocked. There are also many other things you have to rotk around when using Kexec.
Sent from my DROID RAZR using Tapatalk 2

What's so good about unlockable bootloader?

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!
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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

What can't I do with a locked bootloader??

Curious if I should wait to root until I can unlock the bootloader. Can I flash anything?
no flashing possible on locked bootloader
Blackwolf10 said:
no flashing possible on locked bootloader
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Not entirely correct. The bootloader is locked but there is a bypass. We have the ability to root, install TWRP and flash ROMs once they become available
mikebuck69 said:
Not entirely correct. The bootloader is locked but there is a bypass. We have the ability to root, install TWRP and flash ROMs once they become available
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Click to collapse
which is simply by unlocking the bootloader
Would I be able to flash this....which is not a rom?
http://forum.xda-developers.com/showthread.php?t=2040163
Blackwolf10 said:
which is simply by unlocking the bootloader
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Click to collapse
djrbliss has a way to bypass the bootloader, which is not the same as unlocking it, although that may come eventually. For our purposes it is essentially the same thing but it adds additional steps for developers creating roms/kernels etc.
---------- Post added at 09:00 AM ---------- Previous post was at 08:48 AM ----------
good write up on how it works. I certainly don't pretend to understand it fully at this point, but the point is he has discovered a security flaw (it's what he does) and exploited it.
http://blog.azimuthsecurity.com/2013/05/exploiting-samsung-galaxy-s4-secure-boot.html
mikebuck69 said:
djrbliss has a way to bypass the bootloader, which is not the same as unlocking it, although that may come eventually. For our purposes it is essentially the same thing but it adds additional steps for developers creating roms/kernels etc.
---------- Post added at 09:00 AM ---------- Previous post was at 08:48 AM ----------
good write up on how it works. I certainly don't pretend to understand it fully at this point, but the point is he has discovered a security flaw (it's what he does) and exploited it.
http://blog.azimuthsecurity.com/2013/05/exploiting-samsung-galaxy-s4-secure-boot.html
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I thought Dan had unlocked the bootloader and was just waiting to release it.
Never mind, I just read Dan's threads.

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