Just a quick question.
Say 2.3.4 stock ROM comes out. If I flash it via recovery, would I have to flash the custom kernel via recovery as well, this time without whole rooting process or would I have to start from unlocking bootloader steps?
The custom kernel might be too old or incompatible. When you upgrade you will need to go through the rooting steps again, you will most definitely lose root, I'm not sure if the bootloader relocks though, if it does just fastboot OEM unlock again, you can do that in no time
JD
Sent from my Google Black Neolithic Slab Of Wonderment S
Yes you can but you must be rooted
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Related
My question is, if you relock the bootloader on ns4g after unlocking and rooting, will you loose the root or the ability to flash any custom roms or mods?
chrissboston said:
My question is, if you relock the bootloader on ns4g after unlocking and rooting, will you loose the root or the ability to flash any custom roms or mods?
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No. You can still flash anything via custom recovery.
You will, however, lose the ability to flash a custom recovery if it is overwritten via fastboot. If you have root access you can still use the flash_image binary from the device or flash via Rom Manager. If you lose root and recovery though you will have to unlock again.
chrissboston said:
My question is, if you relock the bootloader on ns4g after unlocking and rooting, will you loose the root or the ability to flash any custom roms or mods?
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This is a dev phone, so you can lock and unlock the bootloader as you please. You will not be able to switch the recovery with it locked.
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Rem3Dy said:
If the bootloader is locked you can not flash roms. This is a dev phone, so you can lock and unlock the bootloader as you please.
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Yes you can - via a custom recovery you can flash whatever you want.
Pre 2.3.3 you could fastboot boot a custom recovery and flash whatever you wanted without even touching the stock recovery. That was never the intended functionality though and 2.3.3 took that ability away again (so that you now have to initially unlock in order to flash a custom recovery).
Thanks
Thank you Rem3Dy & krohnjw, I understand now. And thanks for the tip about flashing through rom manager krohnjw, its very usefull and easier instead of flashing manually.
chrissboston said:
And thanks for the tip about flashing through rom manager krohnjw, its very usefull and easier instead of flashing manually.
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And is causing problems en masse.
rentaric said:
And is causing problems en masse.
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erasing before flashing seems to help, I just use fastboot though as it's easy and doesn't have any issues. I don't recommend locking the bootloader if you plan on flashing, but it is possible.
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I agree with you krohnjw as sometimes when you don't do a full wipe the new flashed rom gives you problems, specially with FC's, but I've never had a problem when flashing after doing a full wipe.
Does it have to be unlocked to flash a rom. I can easily unlock it. I know. I relocked it I'm anticipation of ics now am wanting to throw a rom back on. I just rerooted. Flashed cwm. Made a backup. Can I just flash oics or do I Have to unlock the bootloader first?
Hell, I'll unlock it again haha
But would still like to know the answer
U have to unlock it in order to install a custom recovery. But after that u might be able to re lock it and still keep cwm. Not sure tho
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From what i've gathered, you'll need CWM or similar (not necessarily a locked bootloader AFAIK) to flash a non-stock ROM, the stock recovery won't do.
I had cwm after I rooted. Was able to make a backup. I just copied all contents to PC, unlocked boot loader, then just recopied and flashed the oics43. So far a little lag here and there but nice. Seems to be more functional than the roms were a month ago
Hi, sorry if there is some answer to my question but i couldn't find it. Is there any chance of bricking device or screw something up when unlocking a bootloader? Tnx.
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Not by unlocking it via fastboot OEM unlock. You could brick phone by flashing an incorrect bootloader..
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Rem3Dy said:
Not by unlocking it via fastboot OEM unlock. You could brick phone by flashing an incorrect bootloader..
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How to know which bootloader to use..?
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Don't touch the bootloader, they generally come with the ROM. As for a recovery partition, most people use ClockWorkMod Recovery. Latest version is 5.0.2.0 and recommended.
Harbb said:
Don't touch the bootloader, they generally come with the ROM. As for a recovery partition, most people use ClockWorkMod Recovery. Latest version is 5.0.2.0 and recommended.
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The only thing i want to do, is instal official OTA gb 2.3.6 from recovery on my nexus s, than try system upgrade from phone settings, to upgrade on ICS. Or if that is not working, to flash 2.3.6, than official OTA ICS from recovery.
My question is, do i really must unlock bootloader to flash any official or custom rom from stock recovery? As you can see i'm new to this, i have galaxy 3, there is all simple, just flash flash flash. Here i read you must unlock bootloader, than root, than install recovery..
Sent from my GT-I5800
Only need to unlock for unofficial ROMs. If you're using an official .zip (upgrade or full), you do not need an unlocked bootloader, a custom recovery or root. Just open the stock recovery and flash away.
I recently accidentally (noob) flashed a nexus s jelly bean bootloader update on my nexus s 4g and it screwed up my network, unable to be flashed for service. My USB doesn't get recognized by my computer regardless of cord or computer. Phone wi-fi works but no network, is there any way to solve this problem.
Just do a re flash using cwm, and throw it on a sd card and do it from your phone. Something similar happened to me.
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Bad bootloader
Nexus85 said:
I recently accidentally (noob) flashed a nexus s jelly bean bootloader update on my nexus s 4g and it screwed up my network, unable to be flashed for service. My USB doesn't get recognized by my computer regardless of cord or computer. Phone wi-fi works but no network, is there any way to solve this problem.
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Friend a have de same problem, my system works perfectly but doesn't have network. I put a korean version bootloader and I'm not root and don't have CWM recovery. I'm wait for jelly bean update because it has a new bootloader.img. I was reading this thread http://forum.xda-developers.com/showthread.php?t=1566475 but the nexus s 4G has all electronic things in different side.
I'm ask for help in this link http://forum.xda-developers.com/showthread.php?t=1839449.
hello guys im new to the samsung game! im a former razr owner! but i noticed the is allot of differences in the motto hacking and the samsung hacks? i have a stock rooted Verizon galaxy s3 i downloaded the bootloader unlock app but haven't had the guts to hit the unlock button! and downloaded the ez recovery app but haven't use it ether! Im not sure where to start? i want to flash cm10 to try out the jelly bean effect! lol but i don't know where to start with that ether! and if i unlock the bootloader am i still able to flash the stock rooted rom using the same odin process that Ive done b4? do i need to back up anything? please help with a flashing guide 101 for samsung lol !
drnoob said:
hello guys im new to the samsung game! im a former razr owner! but i noticed the is allot of differences in the motto hacking and the samsung hacks? i have a stock rooted Verizon galaxy s3 i downloaded the bootloader unlock app but haven't had the guts to hit the unlock button! and downloaded the ez recovery app but haven't use it ether! Im not sure where to start? i want to flash cm10 to try out the jelly bean effect! lol but i don't know where to start with that ether! and if i unlock the bootloader am i still able to flash the stock rooted rom using the same odin process that Ive done b4? do i need to back up anything? please help with a flashing guide 101 for samsung lol !
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See this:
forum.xda-developers.com/showthread.php?t=1837863
(sorry of the non-hyperlink, I'm not allowed)
You have everything you need. If you're rooted, unlock the bootloader using the app you have, flash the non-touch cwr 6.0.1 or 6.0.2 using the ez recovery app or rom manager, then download cm10 and appropriate latest jelly bean gapps, boot into recovery from rom manager or pull battery hold volume up+home +power. From there, do a nandroid backup first, then wipe data, cache, system, and dalvick. Now flash your cm10 or any other rom, then your gapps, profit.
Edit: no over the air updates should be accepted or you can brick that shiny phone.
The whole process is much simpler now that the bootloader is unlocked.
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thanks for the info! so say I'm on a custom Rom with my boot loader unlocked and i want to go back to stock rooted, would i just flash the stock rooted image? and won't that lock the boot loader again?
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drnoob said:
thanks for the info! so say I'm on a custom Rom with my boot loader unlocked and i want to go back to stock rooted, would i just flash the stock rooted image? and won't that lock the boot loader again?
Sent from my SCH-I535 using Tapatalk 2
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Depends if you're on an AOSP based rom. If so, you'll need to flash a stock kernel and a full wipe is also necessary. Otherwise you should pretty much just be able to dirty flash over any stock based roms.
No, it won't relock the bootloader. That's a separate process.
Good morning!
So, yesterday evening I rooted my N5 with Towelroot, installed TWRP and then flashed the latest SuperSU! Everything went fine and now I want to install PA (4.4 RC1). But I'm not quite sure if I need to unlock the bootloader for that... I think that only needs to be done for a kernel. So what should I do? Leave it locked and flash PA, or unlock it and flash PA?
Also, if someone could set me up with the 4.4.3 gapps, that would be nice. I downloaded a file, but its not a mini version and only has 97MB. The full versions are a lot bigger if I remember correctly, aren't they?
Anyway thanks!
*edit: I'm currently on the 4.4.3 stock ROM. That means that I don't need to update my radio, because it should already be the latest version from the OTA... Correct me if In wrong though!
Sent from my Nexus 5 using Tapatalk
Please can you ensure you ask questions in the questions section ?
The bootloader only needs to be unlocked to flash recovery which you need for rooting. This isn't an issue for you because you used the new exploit that means you can root without having to unlock the bootloader
Even though you've rooted already, I strongly urge you to read the pre root section in the thread shown in my signature to bump up your basic knowledge
Sent from my Nexus 5 using Tapatalk
rootSU said:
Please can you ensure you ask questions in the questions section ?
The bootloader only needs to be unlocked to flash recovery which you need for rooting. This isn't an issue for you because you used the new exploit that means you can root without having to unlock the bootloader
Even though you've rooted already, I strongly urge you to read the pre root section in the thread shown in my signature to bump up your basic knowledge
Sent from my Nexus 5 using Tapatalk
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I do have basic knowledge (rooted my Nexus Phones before, every time with fastboot). I'm just asking if it is important to unlock the hootloader before flashing a ROM, as I'm not sure. Sorry for posting in the false section...
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julbra18 said:
I do have basic knowledge (rooted my Nexus Phones before, every time with fastboot). I'm just asking if it is important to unlock the hootloader before flashing a ROM, as I'm not sure. Sorry for posting in the false section...
Sent from my Nexus 5 using Tapatalk
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You can install custom ROMs, but only ROMs based on stock firmware and using stock kernel. ROMs like CyanogenMod, you can't install at all because you cannot flash the custom kernel that comes with it. Unlocked bootloader allows you to install unsigned kernels onto your phone.
fxdil said:
You can install custom ROMs, but only ROMs based on stock firmware and using stock kernel. ROMs like CyanogenMod, you can't install at all because you cannot flash the custom kernel that comes with it. Unlocked bootloader allows you to install unsigned kernels onto your phone.
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Where did you get this information? My bootloader is locked and I can flash all kernels via recovery
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rootSU said:
Where did you get this information? My bootloader is locked and I can flash all kernels via recovery
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Isn't that the case, or have I been misinformed? I left my boot loader unlocked since the day I was rooted, mostly because of that fact (I remembered reading it somewhere) and also because I can't do a RMA.
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fxdil said:
Isn't that the case, or have I been misinformed? I left my boot loader unlocked since the day I was rooted, mostly because of that fact (I remembered reading it somewhere) and also because I can't do a RMA.
Sent using Etch-a-Sketch
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You unlock the bootloader to flash a custom recovery. You flash kernels/ROMs in a custom recovery, not in bootloader.
Also this thread is in the wrong section.
So, if I just unlock my bootloader with bootunlock I won't have any problems?
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julbra18 said:
So, if I just unlock my bootloader with bootunlock I won't have any problems?
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Sure. Also you wont have any problems if you DON'T unlock your bootloader
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Lethargy said:
You unlock the bootloader to flash a custom recovery. You flash kernels/ROMs in a custom recovery, not in bootloader.
Also this thread is in the wrong section.
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That was where I was getting at, since I learnt to root using the manual way and not using a toolkit, I had to unlock my bootloader first before flashing a custom recovery. Never occurred to me to relock it.
(if I made a mistake somewhere, I apologized. I'm still learning, and learnt something new today!)
rootSU said:
Sure. Also you wont have any problems if you DON'T unlock your bootloader
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I'll try it with the locked one first, I can change it later on anyways! Thanks for your help!
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fxdil said:
That was where I was getting at, since I learnt to root using the manual way and not using a toolkit, I had to unlock my bootloader first before flashing a custom recovery. Never occurred to me to relock it.
(if I made a mistake somewhere, I apologized. I'm still learning, and learnt something new today!)
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You can flash a kernel/ROM in a custom recovery regardless bootloader state, but the bootloader needs to be unlocked to use fastboot (i.e. flash the custom recovery in the first place). A bunch of people relock their bootloader with an app (and unlock when necessary, doesn't delete internal storage through this method) for extra security (internal storage wipes if bootloader is unlocked via fastboot).