I've just had a ale unlock my boot loader remotely so drm is intact. Should i install doomlord kernel or just stuck with cwm on its own. What I want to do is make a backup that will restore the phone to stock with no hacks should i ever need to take it in for warranty. Whats the best way of achieving this? Also should i install doom kernel or just stick with cwm on its own?
if you have unlocked bootloader then probably you have lost your warranty.
if you want to overclock your phone, doomkernel is the best choice I know.
I have unlocked my BL, test several kernels, and flashed several fw and roms.
and you know what? I'm addicted. it's fun.
regards,
gogo415
Read this Thread: [Tutorial] Relock bootloader!: http://forum.xda-developers.com/showthread.php?t=1134335&highlight=unlocked+bootloader+arc
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I just got my Arc S, and i want to check out few different custom roms. I was planing on rooting the device with Easy rooting toolkit, so the question is, how can i backup my stock rom and reflash it, if i ever need it for warranty issues? (Also maybe to get the official 4.0 update next year )
On my previous phone (HTC Desire) it was pretty easy, by restoring the Nandroid backup that i created after rooting the device. How about the Xperia? Is there something similar?
And while we are here, any suggestion for some stable custom roms for the Arc S? Thanks
If you only want to root your device, you can simply unroot the device.
But you don't really have to, when you update your device using PCC or SEUS, the root is gone.
http://forum.xda-developers.com/showthread.php?p=18879974#post18879974
If you decide to unlock your bootloader to flash custom kernels/ROMs, you have to relock it, when you want to update your firmware using PCC or SEUS.
http://forum.xda-developers.com/showthread.php?t=1134335
And which custom ROM you like is your decision, but I'm still a CM7 fan.
I have root, if I want to return to stock ROM (without root) I can just use SEUS to update my phone and the root is gone?
hdplsa said:
I have root, if I want to return to stock ROM (without root) I can just use SEUS to update my phone and the root is gone?
Click to expand...
Click to collapse
If your bootloader is locked yes.
I rooted my arc with EasyRooting toolkit,
How do I know if my bootloader is locked or not?
Edit: I checked by the service info, it says
Rooting status:
Bootloader unlock allowed: No
I am guessing that means my bootloader is locked?
Aiceball said:
I am guessing that means my bootloader is locked?
Click to expand...
Click to collapse
Yes, it is.
And if you root, it doesn't, mean you've a unlocked BL.
Btw, you can't unlock your BL using the official method.
If you still want to unlock your BL, contact Jinx13.
Ok, so I'm a bit confused about how to go around things. I wish to upgrade my phone to ICS 4.04; that I can handle. But I also wish to root it and install a custom ROM and kernel. My bootloader is currently locked and I understand that I need it to be unlocked for the custom ROM and kernel and the ICS root. I've already checked and my phone can be bootloader unlocked.
So here's the main question: What order should I do this in? Am I right in the method below?
Unlock bootloader
Install ICS via FT
Flash custom kernel with recovery
Flash custom ROM
Thanks.
yep...
Sent from my LT18i using xda premium
Pretty much so. I'd put the rom zip on your SD card first, then use fastboot for the kernel, then flash the rom.
sinkster©
So
1. Place custom ROM on SD
2. Use fastboot to install kernel
3. Boot Recovery
4. Install ROM
Right?
unlock bootloader
copy ROM to sd card
flash custom kernel
flash custom ROM
no need to flash ICS fw..
If you are going to unlock the official Sony way, before you unlock bootloader on your Arc beware of a few things.
1. Using the official Sony unlock will remove the DRM keys from your phone. This is not really a big deal, but some Sony apps, like for example TrackID, won't work without these keys.
2. Using the official Sony unlock means that if at some time down the line you return to using official Sony roms, using an OTA (over the air) update from Sony can brick your phone. I know it sounds ridiculous but search this site, or look it up on Google, either of which will confirm this. This, to my mind anyway, is certainly a bigger deal.
I'd recommend that you avoid the official Sony method for these reasons. Although it's not usually free, I'd recommend going with the testpoint method for unlocking.
I got my Arc unlocked and SIM-freed by an XDA member called jinx13 and have really enjoyed using my phone since. I've been jumping back and forth through custom roms and official roms without any problems.
PS. arpith.fbi is right, no need to flash ICS before custom rom, just go straight to the custom rom.
I'll be going on a trip to China soon and I need to unlock my phone. I have tried unlocking my phone with the help of this post, but unfortunately it didn't work out. I read that I need to be using the stock rom for the unlock method to work.
My question is: if I unlocked my phone on the stock ROM and then restored to a backup with Clockworkmod, would my phone still be unlocked?
Also does anyone have a link to good stock based ROM that I can use to unlock my phone?
Any stock based Rom will do it, even the plain rooted stockones. And once it's unlocked, it stays that way until you relock it. Flashing a Rom shouldn't cause you to relock
I am new and fresh to this field, so what exactly is rooting and bootloader unlock?
Is it necessary for us to unlock bootloader before rooting the phone like most of the thread that i have read so far?
if we installing custom rom like Xperia Ultimate HD, paranoid,etc. is it necessary just to root/unlock bootloader or both is required?
Can we install custom rom without unlock the bootloader or rooting?
What is is the downfall of rooting and bootloader unlock?
Thanks for the reply in advance.
Rooting gives "admin" rights - allowing you to make changes to the system files on the phone.
Unlocking bootloader enables you to write to the /boot partition on the phone ( ie flash custom kernel) which is normally not writable even with root access.
it is phone dependent. Some phones need unlocked bootloader to be rooted, some do not. We have several rooting tools for locked bootloader, it's in the general section use the search button.
There are different types of rom - stock based and CM based.
But before that - kernels are only compatible with android version. You cannot use, say, JB kernel on ICS rom.
Stock based roms ( UHD, Zelly Cream etc) do not need unlocked BL bc they can run on the stock kernel.
CM based roms ( CM7.2, CM9, MIUI V5) need unlocked BL because they cannot run on stock.
So if you have locked BL, you root, copy Rom into sdcard, install recovery then install rom.
if you have unlocked BL, you simply flash kernel then flash rom. No need to root because custom roms are pre rooted.
Rooting does no harm to phone. Unlocking BL via official method makes u lose DRM keys and warranty but u can always relock and get warranty back. ( providing service centre does not check for DRM)
This is a simple overview for a more in-depth understanding check the general section there are many great guides in there.
Sent from my MiUI-ed Xperia arc S
\ press thanks if I've helped /
tangosierra_ said:
Rooting gives "admin" rights - allowing you to make changes to the system files on the phone.
Unlocking bootloader enables you to write to the /boot partition on the phone ( ie flash custom kernel) which is normally not writable even with root access.
it is phone dependent. Some phones need unlocked bootloader to be rooted, some do not. We have several rooting tools for locked bootloader, it's in the general section use the search button.
There are different types of rom - stock based and CM based.
But before that - kernels are only compatible with android version. You cannot use, say, JB kernel on ICS rom.
Stock based roms ( UHD, Zelly Cream etc) do not need unlocked BL bc they can run on the stock kernel.
CM based roms ( CM7.2, CM9, MIUI V5) need unlocked BL because they cannot run on stock.
So if you have locked BL, you root, copy Rom into sdcard, install recovery then install rom.
if you have unlocked BL, you simply flash kernel then flash rom. No need to root because custom roms are pre rooted.
Rooting does no harm to phone. Unlocking BL via official method makes u lose DRM keys and warranty but u can always relock and get warranty back. ( providing service centre does not check for DRM)
This is a simple overview for a more in-depth understanding check the general section there are many great guides in there.
Sent from my MiUI-ed Xperia arc S
\ press thanks if I've helped /
Click to expand...
Click to collapse
So, how about Xperia Arc and Xperia Arc S? does it require to unlock bootloader to root?
What is the main difference of Stock based roms and CM based roms? How to differentiate it?
Correct me if i mistake. Unlock the bootloader normally only required for flashing the custom kernel like lupus kernel which it is required for CM based rom. And if it is stock based it will only need root for the installation.
shuffle1990 said:
So, how about Xperia Arc and Xperia Arc S? does it require to unlock bootloader to root?
What is the main difference of Stock based roms and CM based roms? How to differentiate it?
Correct me if i mistake. Unlock the bootloader normally only required for flashing the custom kernel like lupus kernel which it is required for CM based rom. And if it is stock based it will only need root for the installation.
Click to expand...
Click to collapse
Firstly, Xperia Arc and Xperia Arc S use the same kernels, and the same ROMs, they're most likely the same phone. The stock-based ROMs, as far on my stay on xda I've learned that they are the ones based on the ROMs already released by sony, i.e Ice Cream Sandwich or Gingerbread. How to differentiate? Easy, on a first place the Rom Thread should clearly say if it's stock based or no, and you can see the tags [ICS] or [.587], or tags like that. CM based ROMs should be clearly stated too, plus it must say [CM10] or [CM10.1].
And yes, you're right, without unlocking bootloader you can still have a custom ROM, ICS based or GB based. You actually don't need root for the installation, and generally the ROMs that you install come pre-rooted. Hope it helped.
tangosierra_ said:
Unlocking bootloader enables you to write to the /boot partition on the phone ( ie flash custom kernel) which is normally not writable even with root access.
Click to expand...
Click to collapse
Just to correct this, unlocking bootloader allows custom, unsigned, kernels to be installed. /boot partition can still be edited by using stock kernels, which have been signed by Sony, these are the kernels within Flashtool FTF files. This can still be done with locked bootloader.
The thread titles will tell if it is stock or CM based
Ah yes forgot about the stock kernel, damn
Hi i would just like to ask something that has been confusing me for quite a while now. I've had my hydrogen for a week and ive unlocked bl, rooted now with a custom rom(rr rom 5.7.4 working great!!) I did not actually wanted to unlock the bootloader but to be safe, i followed the instructions.
so here it is, before mi max, I had a mi4i, an xperia, and a zenfone 4, done the same, root,install custom recovery, and flashed custom roms.. the only unit i unlocked bl was the xperia since i wanted to flash Official CM, (CM's comes with their own kernel right? so flashing them needs bl unlocked) but when BL was locked i could still flash roms, manual update, (ROMs that are meant for locked bl only). then with mi4i (locked bl) i was able to root, install twrp, manual flash updates, official roms, and custom rom (CM13).
The part where I am confused is, why do i need my bootloader unlocked if i was going to root,install twrp, and flash custom roms only on my max without touching the kernel? When in my previous experiences as long as i dont need touch/tweak the kernel, i dont need my bootloader to be unlocked.
Sorry for long post..
I hope my question makes sense