Develop Bugs

[Q]Flashing with flashtool brings back phone to stock?

1. I wanted to know that is it possible to downgrade using flashtool e.g if i flash a custom rom which is based on firmware .55 but then i flash with flash tool, version .50, would it work?
2. By flashing through flash tool, can i get rid of CWM?

1) yes
2) yes
Assuming you have an unlocked bootloader and you mean flashing ftf files
Sent from my LT26i using xda premium

Kevin-0100 said:
1) yes
2) yes
Assuming you have an unlocked bootloader and you mean flashing ftf files
Sent from my LT26i using xda premium
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No. I'm not planning on unlocking bootloader but yes i was referring to ftf files. DOes it change the scenario?

Anyone?

The custom rom part put me off, sorry about that.
You can use flashtool to flash a stock ftf firmware over any custom rom. (also with a locked bootloader.
You could downgrade even to a gingerbread rom if you want
Sent from my LT26i using xda premium

Kevin-0100 said:
The custom rom part put me off, sorry about that.
You can use flashtool to flash a stock ftf firmware over any custom rom. (also with a locked bootloader.
You could downgrade even to a gingerbread rom if you want
Sent from my LT26i using xda premium
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Ok and by flashing stock ftf, i would get rid of even clockwork right? in case of sending it to repair centre.
Thing is, i have played around with custom roms on different phones for ages but the whole part of unlocking bootloader etc is all new to me so before i begin flashing roms.

Yes it would remove cwm since it's embedded in the kernels and since stock firmware kernels don't have cwm it will be removed by flashtool when flashing a stock firmware rom
Sent from my LT26i using xda premium

[Q] Remove CWM Xperia M (Unlocked Bootloader)

Hey Guys.Im new and i wanted to ask how to remove CWM on xperia m c1905 (rooted,bootloader unlocked) cuz i decided to back to original stock rom.anyone can help me?

Guide to relock bootloader kernel wise suggest reflashing stock firmware
Maybe reflash first then lock bootloader not sure on which way it should be done
http://forum.xda-developers.com/showthread.php?t=2497985
Sent from my C1905 using xda app-developers app

based on the thread that u give is said stock kernel so i assume that i need to reflash stock firmware and then relocking bootloader (correct me if im wrong).one more thing,does reflashing stock firmware remove root access and also reflashing remove cwm?

acapdin said:
based on the thread that u give is said stock kernel so i assume that i need to reflash stock firmware and then relocking bootloader (correct me if im wrong).one more thing,does reflashing stock firmware remove root access and also reflashing remove cwm?
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First flash stock Kernel, and then Relock, If you relock/upgrade your FW, before reverting to stock kernel, your phone might soft-brick..

ckrishnakanthc said:
First flash stock Kernel, and then Relock, If you relock/upgrade your FW, before reverting to stock kernel, your phone might soft-brick..
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tq for the info oh i 4 got.will the root and cwm also gone after flash?

Yes it will as recovery is only on that elixer kernel and root is on firmware
Sent from my C1905 using xda app-developers app

ckrishnakanthc said:
First flash stock Kernel, and then Relock, If you relock/upgrade your FW, before reverting to stock kernel, your phone might soft-brick..
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dunc4n88 said:
Yes it will as recovery is only on that elixer kernel and root is on firmware
Sent from my C1905 using xda app-developers app
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thanks.thank u for explainin it.

Update
so guys i try the method
1.Reflash using stock firmware
2.relock using backup-TA
Result = 100% working fine.
so if u guys got a problem that similar to mine well u got the answer rite here. ^_^

Glad it worked fine
Sent from my C1905 using xda app-developers app

Will the stock rom restore the bootloader?

I have flashed mj5 bootloader to run dn3 rom. When I flash my stock 4.1.2 n7100xxdmg1 rom, will it restore the xxdmg1 bootloader or will I still be having mj5 bootloader? Or will 4.1.2 rom be able to run on mj5 bootloader?
Is bootloader nothing to do with roms? Help get this concept right please.
Thanks in advance.
Sent from my GT-N7100 using xda premium

4.1.2 should work with the MJ5 bootloader, but you can restore it. The old one is available in tools portion of Dr. Ketan's all in one thread.
Sent from my GT-N7100 using Tapatalk 4

ironmanxda said:
I have flashed mj5 bootloader to run dn3 rom. When I flash my stock 4.1.2 n7100xxdmg1 rom, will it restore the xxdmg1 bootloader or will I still be having mj5 bootloader? Or will 4.1.2 rom be able to run on mj5 bootloader?
Is bootloader nothing to do with roms? Help get this concept right please.
Thanks in advance.
Sent from my GT-N7100 using xda premium
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Yes it will replace the BL

Root xperia m 4.3?

Is there any way to root in this new firmware 4.3 for people who still have a locked bootloader? Because i'm too scary to unlock my bootloader
Sent from my C1905 using xda app-developers app

yayanhbs said:
Is there any way to root in this new firmware 4.3 for people who still have a locked bootloader? Because i'm too scary to unlock my bootloader
Sent from my C1905 using xda app-developers app
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Not yet there isn't, people with locked bootloaders (like me and a lot of other people) are continuously looking for a way to root without unlocking the bootloader. I think there's a CWM being developed for locked bootloaders (I'm not too sure on this though).
Sent from my C1905 using xda app-developers app

yayanhbs said:
Is there any way to root in this new firmware 4.3 for people who still have a locked bootloader? Because i'm too scary to unlock my bootloader
Sent from my C1905 using xda app-developers app
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try vroot....
Sent from my C1904 using xda premium

kgaurav said:
try vroot....
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I've tried all methods I can think of and all what have been mentioned (vroot being one of them) and not a single one worked.
Sent from my C1905 using xda app-developers app

Someone should create a prerooted ftf

8hodgsonkh said:
Someone should create a prerooted ftf
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Don't think it's possible to use it on locked bootloader

My drivers were messed up after updating.. I'm still trying to fix that. None of the root methods even recognise the phone now. All I did was update ... but PCC sees the phone just fine. I tried installing the drivers in the latest flashtool. If I can't fix the drivers, no root is possible for me.

kirev said:
Don't think it's possible to use it on locked bootloader
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its the kernel that is the problem, rooting would not effect bootloaders if the ftf had stock kernel and was signed. if i had a computer id do it but sorry i cant :/
---------- Post added at 02:41 PM ---------- Previous post was at 02:40 PM ----------
SharpnShiny said:
My drivers were messed up after updating.. I'm still trying to fix that. None of the root methods even recognise the phone now. All I did was update ... but PCC sees the phone just fine. I tried installing the drivers in the latest flashtool. If I can't fix the drivers, no root is possible for me.
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LB or ULB?

8hodgsonkh said:
its the kernel that is the problem, rooting would not effect bootloaders if the ftf had stock kernel and was signed. if i had a computer id do it but sorry i cant :/
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Right. The kernel is the problem but there is no way to make a flashable and modified ftf file.
The way cold be developing a cwm for locked bootloaders and then flash a prerooted rom in zip format or a stock rom and then a rooting patch.
Enviado desde mi LT30p mediante Tapatalk

dantefff said:
Right. The kernel is the problem but there is no way to make a flashable and modified ftf file.
The way cold be developing a cwm for locked bootloaders and then flash a prerooted rom in zip format or a stock rom and then a rooting patch.
Enviado desde mi LT30p mediante Tapatalk
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Sounds good, but I have a question. How are you going to install the recovery in the first place? Couldn't you just use this method to inject the su binary?
This message was brought to you from my Sony Xperia M C1905 using Tapatalk.

dantefff said:
Right. The kernel is the problem but there is no way to make a flashable and modified ftf file.
The way cold be developing a cwm for locked bootloaders and then flash a prerooted rom in zip format or a stock rom and then a rooting patch.
Enviado desde mi LT30p mediante Tapatalk
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I think CWM is not necessary. Any way to copy all 4.3 system files with su binares (to partition /system with transfer all permissions) should works, then flash 4.3 kernel. But it should be done before Android core will start (otherwise Android will crash before you copy all files), maybe add in init.d or any other boot file, script which copy all 4.3 files with all privileges...
I don't have this phone now so i can't test it.

Any methods found to root phones which have locked bootloader? This is really sad
Only way to gain root without voiding warranty is to go back to stock 4.1.2,then take backup of ta partition , unlock the bootloader, and flash 4.3 ftf..
Else if we unlock the bootloader on 4.3,we can't relock it again as we can't take backup of ta partition
Anyone working on it?
---------- Post added at 12:23 PM ---------- Previous post was at 12:05 PM ----------
Antrikos48 said:
Sounds good, but I have a question. How are you going to install the recovery in the first place? Couldn't you just use this method to inject the su binary?
This message was brought to you from my Sony Xperia M C1905 using Tapatalk.
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Even I did have the same doubt, how we going to install the cwm? By flashing a stock 4.3 kernel which have cwm?

Difference between bootloader knox and free knox

Hello .. I have lag when I use kitkat 4.4.2 (dn3) v5 .. and I use mj5 BL .. and I dont care about warranty .. but my question is can I flash cyanogenmod 4.2 , 4.3 or 4.4.2 after flash new boatloader which has already knox ?
Sent from my GT-N7100 using XDA Premium 4 mobile app

hamzahmamoun said:
Hello .. I have lag when I use kitkat 4.4.2 (dn3) v5 .. and I use mj5 BL .. and I dont care about warranty .. but my question is can I flash cyanogenmod 4.2 , 4.3 or 4.4.2 after flash new boatloader which has already knox ?
Sent from my GT-N7100 using XDA Premium 4 mobile app
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As far as we have tested, after flashing complete firmware ND3 it is possible to run 4.3 custom roms (not tested older ones).
Regarding wifi and similar issues it is advantageous to have newest firmware including bootloader.

Androidwizzard said:
As far as we have tested, after flashing complete firmware ND3 it is possible to run 4.3 custom roms (not tested older ones).
Regarding wifi and similar issues it is advantageous to have newest firmware including bootloader.
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Which 4.3 firmware have you successfully flashed? Are all 4.3 firmwares working on ND3 bootloaders? I don't plan on going back to 4.3 but want to know for my knowledge Thank you

singhpratik87 said:
Which 4.3 firmware have you successfully flashed? Are all 4.3 firmwares working on ND3 bootloaders? I don't plan on going back to 4.3 but want to know for my knowledge Thank you
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We only tested 4.3 custom roms, no firmware and depending on Knox status, in my opinion it could be possible to downgrade firmware to any 4.3 with knox enabled BL, as long as Knox isn't triggered. That's only theory and for me too late to test it. Never cared about warranty.

I have a silly doubt.. How can the Knox counter trip if we use Custom ROM without knox?
Above is valid if someone want to upgrade from MJ5 Bootloader to newer one with any new custom rom.

Mufi_t said:
I have a silly doubt.. How can the Knox counter trip if we use Custom ROM without knox?
Above is valid if someone want to upgrade from MJ5 Bootloader to newer one with any new custom rom.
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There is a difference between Knox app and Knox counter in the download menu of the phone. Once you go up/changing bootloader from mj5 then you get a present Knox counter for free.
Any custom room using higher bootloader will set up the Knox.
It's not about it is custom or not it's about flashing the bootloader.
Sent from my GT-N7100

note2nooby said:
There is a difference between Knox app and Knox counter in the download menu of the phone. Once you go up/changing bootloader from mj5 then you get a present Knox counter for free.
Any custom room using higher bootloader will set up the Knox.
It's not about it is custom or not it's about flashing the bootloader.
Sent from my GT-N7100
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Got it.. Thanks..