[Q] Relock Bootloader on P880 - LG Optimus 4X HD

So I did some research on the xda forums about relocking the bootloader on the p880 and it seems like it is impossible.
My problem is, that under my screen there is an growing amount of dust, which really bothers me especially when I'm outside and the sun is shining on the display.
I would still have about 1 year of warrantiy left if i hadn't unlocked my bootloader, since it is impossible to relock again myquestion is if there is any way to change the text, that is displayed in S/W upgrade mode from "Bootloader: unlocked" to "bootloader: locked" so it would at least appear to be locked, when I send it in for repairs.
Thank you in advance!

evaderxx said:
So I did some research on the xda forums about relocking the bootloader on the p880 and it seems like it is impossible.
My problem is, that under my screen there is an growing amount of dust, which really bothers me especially when I'm outside and the sun is shining on the display.
I would still have about 1 year of warrantiy left if i hadn't unlocked my bootloader, since it is impossible to relock again myquestion is if there is any way to change the text, that is displayed in S/W upgrade mode from "Bootloader: unlocked" to "bootloader: locked" so it would at least appear to be locked, when I send it in for repairs.
Thank you in advance!
Click to expand...
Click to collapse
They can't tell you unlocking bootloader makes dust under the screen but it depends on the terms of your warranty. In some regions warranty still works after unlocking since they can't prove that you done any demage to the device. First read your terms maybe you are lucky :good:

Thanks, but unfortunatly the terms say, that bootloader unlocking voids the warranty, I'm from Germany by the way...
"is there any way to change the text, that is displayed in S/W upgrade mode from "Bootloader: unlocked" to "bootloader: locked" so it would at least appear to be locked, when I send it in for repairs."
does anybody have a solution for this?

You can try to flash the stock 4.0 rom (v10).
See also :
http://lg-phone-firmware.com/index.php?id_mod=15
http://forum.xda-developers.com/showthread.php?t=2069723
After this, try to update to v20 and see if it's work. Check if "bootloader: locked" on v10 also .

evaderxx said:
Thanks, but unfortunatly the terms say, that bootloader unlocking voids the warranty, I'm from Germany by the way...
Click to expand...
Click to collapse
If you're from Germany, the unlocked bootloader shouldn't be a problem. I believe that European laws state that the warranty of electronics can't be voided by a change of software as long as that change didn't lead to the defect. In the case of dust under your screen, they probably won't even check your bootloader.
Sent from my LG-P880 using xda app-developers app

There's already a thread about your issue here
I believe that flashing an ICS firmware should at least "camouflage" your unlocked bootloader

Just in case, anybody ever needs this information: there is indeed a paragrahp in the european laws, that states that the seller always has to give you 2 years of warranty, even if you change the software, as long as you can prove that the error didnt result from that action.
I bought my phone from amazon.de so I will contact them in the next couple of days and I will report back here to tell you about the results!
Thanks for the help!

So my phone returned today. They fixed it without any problems, BUT they somehow relocked the bootloader, now it is impossible for me to open it again, as I always get a small red Text in the upper left hand corner that reads "LG SECURITY unlock permission denied"
I've been searching for a solution all day, but I found nothing :b

evaderxx said:
So my phone returned today. They fixed it without any problems, BUT they somehow relocked the bootloader, now it is impossible for me to open it again, as I always get a small red Text in the upper left hand corner that reads "LG SECURITY unlock permission denied"
I've been searching for a solution all day, but I found nothing :b
Click to expand...
Click to collapse
lg support has a habit of doing that. it may be permanently locked

It wasn't sent to LG it was sent to Amazon, and from there to W-Support, a german repair center thing.
I wonder how they managed to permanently lock it...also they messed up my display (there is some kind of white stuff under there :b)
an a part auf the plastic that surrounds the handy is broken, so I will send in in again and if I'm lucky i will get my Money back, because they hat the oppurtunity to fix the error 2 Times and they screwed up both times, so I now have the option to get my money back :b

I do believe that the Tegra 3 SOC has PROM guarded by a series of fuses. Contrary to EPROM and EEPROM, PROM can be changed only once. So, by unlocking the bootloader, there is no way to change it back. Unlocked bootloader stays like that forever. They can only replace the whole SOC to reverse the situation, but thats like putting another screen in an old TV - it's not the same on that came with the phone - the old one is still unlocked.

Thats what I wrote them, because I didn't want anything but the screen replaced and they didn't notify me in any way that my bootloader will be permanently locked, because if it really is permanently locked the handy is worthless for me. I would rather shoot myself than sticking with the stock Firmware

No, it cannot be relocked. Physically impossible.
It can only be "relocked" by replacing the whole Tegra 3 SOC inside the phone and I'm pretty sure they don't do that anywhere. Besides, if they were to do that, it means you get another brand new, unlockable bootloader to unlock using the same procedure as the last time

UsernameWasTaken said:
No, it cannot be relocked. Physically impossible.
It can only be "relocked" by replacing the whole Tegra 3 SOC inside the phone and I'm pretty sure they don't do that anywhere. Besides, if they were to do that, it means you get another brand new, unlockable bootloader to unlock using the same procedure as the last time
Click to expand...
Click to collapse
But i tried every possible way to unlock the bootloader again, and the tool from here http://forum.xda-developers.com/showthread.php?t=2263627
gave me the error: all fuses blown, bootloader permanently locked
all the other ways of unlocking just gave me the error "LG SECURITY unlock permission denied" no matter whoch one I used. I even tried EU-Open Firmware, and the german one

Did you actually try to flash a ROM or did you just probe the bootloader for unlocking?
Second, try the official way of unlocking.

I used every way of unlocking that I could find, after each try i checked the bootloader state in hidden menu and every time it read: LOCK
the I redid every way with the EU-OPEN .kdz but still no results
btw. the official way was the first one that I tried

So, you didn't try to flash any ROM other than official LGs'?

@UsernameWasTaken: It's true that you can't change burned bits in fuses. That's why our device is designed to use more bits for bootloader unlock checking and if all fuses are burnt, it means a locked state. So basically it can't be unlocked again as far as we know at the moment.
Sent from my OmniROM-powered LG Optimus 4X HD

@Adam77Root, yes, I've been reading upon this, but didn't realize that blowing all fuses locks the bl. I thought it meant blowing them with incorrect bits. This description is a little too technical and convoluted for an average reader, plus the writing style and language don't help one bit to easily understand what's going on.
So, presumably, one's phone's bootloader can and probably will be permanently locked by the repairmen, no matter if the owner messes with unlocking or not? They blow the fuses as standard procedure during repair, correct? Yet another d*ck move by nVidia.
As I understand it, there is a total of 16 fuses and all can be blown one at a time using this future81's method. Each separate fuse's current state defines whether the BL is locked/unlocked, or is it a combination of them?
All in all, I would guess that following the official unlocking method is a poorer choice than using future81's Unlock.apk, as long as there is no need to RMA the phone.
OP, I'm sorry they messed up your phone. If you can, replace or return it.

Main point is that you have 16 chances to change lock state, but once all fuses are blown, it remains in a locked state that can't be altered.
I don't think they blow the fuses always, but only if the BL has been unlocked. Maybe they want to punish users for being curious and messing with lock state.

Related

Is it possible to change the bootloader image?

Has anyone managed to change the bootloader image that shows up before the boot animation? I'm talking about the still 'X' image that first appears when you start the phone.
What I would REALLY like is a way to remove the unlocked icon below it. I'm not looking for a way to hide that my phone is unlocked, I just don't like being reminded of the fact every time I start up my phone. I prefer everything to have a completely OEM look and feel to it. Hopefully that doesn't sound crazy...
No, I believe the nexus has a locked SPL. At least if there was a way to change it, I think we would have seen that by now.
there probably is a way to change it, we just don't know it. people have sent their unlocked phones off to htc, and had them returned locked. so...there is a way to do it, we just don't have the tools, or a workaround.
yet
Well I look forward to the day someone figures it out. It's a shame Google/HTC went to such lengths to void warranties.
they didn't void your warranty. you did, lol.

Guarantee- no luck

Greetings. Today I just came across a new device from the guarantee, the old x8 restarting for no reason. I received the new phone, I had 11w29, as the eternal model, I tried to unlock bootloader, went well, and the last phase, I hung up, and no longer open, even if i charge it(on first x8, i had no problem). Whether it's the button or I try to put in recovery. Help,I don't know what to do. Excuse the English, not mastered very well.
Any idea ?
srsdani said:
Greetings. Today I just came across a new device from the guarantee, the old x8 restarting for no reason. I received the new phone, I had 11w29, as the eternal model, I tried to unlock bootloader, went well, and the last phase, I hung up, and no longer open, even if i charge it(on first x8, i had no problem). Whether it's the button or I try to put in recovery. Help,I don't know what to do. Excuse the English, not mastered very well.
Click to expand...
Click to collapse
sorry, so what is your problem?
unlock BL or what?
srsdani said:
Greetings. Today I just came across a new device from the guarantee, the old x8 restarting for no reason. I received the new phone, I had 11w29, as the eternal model, I tried to unlock bootloader, went well, and the last phase, I hung up, and no longer open, even if i charge it(on first x8, i had no problem). Whether it's the button or I try to put in recovery. Help,I don't know what to do. Excuse the English, not mastered very well.
Click to expand...
Click to collapse
its a hard brick
I think it is hard brick, but not sure what happened. The old phone was identical (11w29) (11w48) and I unlocked without problems. Why it happened that? Know if this is the warranty repair?
srsdani said:
I think it is hard brick, but not sure what happened. The old phone was identical (11w29) (11w48) and I unlocked without problems. Why it happened that? Know if this is the warranty repair?
Click to expand...
Click to collapse
from what i understood, the unlock process was somehow interupted,thats the problem, if your warranty is still active you can go to the repair shop....
"The old phone was identical (11w29) (11w48)"
what do you mean by that, which one was 29 and which one was 48, whats the identical of them?! if the one that hard bricked was 11w48 then there is nothing wrong its been hard bricked because it is 11w29+
It's hard to say exactly, but s1tool, are displayed two values​​, one with and another with 11w48 11w29, these values ​​are identical to the two phones. I was even curious if something can be done to guarantee. The process was not interrupted, you just told me ainchid phone and finally, closed, and surprise, not answered. Now I have a brand new phone, which ran almost two hours.
srsdani said:
It's hard to say exactly, but s1tool, are displayed two values​​, one with and another with 11w48 11w29, these values ​​are identical to the two phones. I was even curious if something can be done to guarantee. The process was not interrupted, you just told me ainchid phone and finally, closed, and surprise, not answered. Now I have a brand new phone, which ran almost two hours.
Click to expand...
Click to collapse
man, open the back of your phone, remove the battery and see at the phone, there must be a number like that:11wxx or 12wxx (not the one at the battery,but the one on the phone!)
if that number is 11w29+ you shouldnt try to unlock bootloder!!!
Try use PCC and return to factory settings, to 2.1
After that try flash, bootloader, kernel, rom....
@Masograd, did you know what is hard brick? The phone is not detected by PC, or not charging, no signs of life.
@stamatis16 it's some problem right here. The old phone wrote here does not write anything with s1tool Only I saw that. Honorable to the old phone I had those pin plate, this can be seen in picture (golden point). I tried to unlock because s1tool showed me the same values​​(11w29), and I had no problem.
do you mean that you used this method?
why?!
you have remove the backsticker, do you remember what it used to write?(what number11w??)
No, that thought, that's why I attached a picture where because I can't read the anything(not write anything useful)(under battery). Now, s1_erom:r8a029, loader version: r4a045.
oh i see... now its bricked right?! you could have tried this:http://forum.xda-developers.com/showthread.php?t=1700465
i dont know what that s1_erom numbers are, but i dont think they have anything to do with 11wxx
A small problem, phone is brick, and the warranty certificate is not passed new IMEI. But what I noticed, I have a code under the battery: SI; Type; S/N and... 12W03( written on the right, near the type code)... facepalm
srsdani said:
A small problem, phone is brick, and the warranty certificate is not passed new IMEI. But what I noticed, I have a code under the battery: SI; Type; S/N and... 12W03( written on the right, near the type code)... facepalm
Click to expand...
Click to collapse
yea
if it isnt the exact date that sticker had too then its sure close(but i think its the same).....
as long as your warranty hasnt expaired go at shop and sent it for repair...

One m7 bricked ...... PLS HELP

Hi!
First of all i want to clarify that i don't know how to root or do anything of that kind. I loved my HTC one and so i never messed with it. but about a month ago i dropped it on hard concrete and cracked it glass. but the phone was 100% functional. i used my phone for almost a month with that cracked glass. So that means that my dropping the phone has nothing to do with my problem. 3 days ago my HTC one's battery died, so i connected it to its own charger and let it charge for about 2 hours. But when i tried to power it on it went straight to bootloader with " ***TAMPERED*** " on top.
I tried to reboot it using volume and power keys but it returns to same screen. It returns to same screen no matter what i do.
here is the screen:
I took to to HTC service center. They gave up on me and said that they cannot accept warranty if its showing ***TAMPERED*** message. But honest to god i never even attempted to root it or do anything else. i only used to install offical updates.
I really need help on how do i solve this ! so if someone knows a solution then pls help!
The only way to get rid of tampered is to s off your phone. There are guides in the one general section
Sent from my GT-I9305 using xda app-developers app
surajhawk said:
Hi!
First of all i want to clarify that i don't know how to root or do anything of that kind. I loved my HTC one and so i never messed with it. but about a month ago i dropped it on hard concrete and cracked it glass. but the phone was 100% functional. i used my phone for almost a month with that cracked glass. So that means that my dropping the phone has nothing to do with my problem. 3 days ago my HTC one's battery died, so i connected it to its own charger and let it charge for about 2 hours. But when i tried to power it on it went straight to bootloader with " ***TAMPERED*** " on top.
I tried to reboot it using volume and power keys but it returns to same screen. It returns to same screen no matter what i do.
here is the screen:
I took to to HTC service center. They gave up on me and said that they cannot accept warranty if its showing ***TAMPERED*** message. But honest to god i never even attempted to root it or do anything else. i only used to install offical updates.
I really need help on how do i solve this ! so if someone knows a solution then pls help!
Click to expand...
Click to collapse
That (ie unlocking, S-Off, etc. etc.) is going to be a long and hard road, and possibly a futile one, because of the high chance that this is a hardware problem.
But here's what you could do, without too much trouble (no unlocking, no nothing, just as the phone is right now:
get firmware 4.20.707.7 (that's what shows on your screenshot) from here: http://xda6.androidrevolution.org/db_mirror/Firmware/index.php?dir=HTC/HTC_One/707/
and flash it:
fastboot oem rebootRUU
fastboot flash zip 4.20.707.7.zip
fastboot flash zip 4.20.707.7.zip <- yes TWICE !!
fastboot reboot-bootloader
The theory behind it is: TAMPERED should show up when you change recovery, the above firmware is official signed one, and would put your firmware back to stock, and if you're lucky remove the TAMPERED.
On the other hand, since you didn't change anything on your phone, but got the TAMPERED message, I would guess your phone has a hardware problem (other than the broken screen), and it's not going to be fixable.
And finally, why would the repair centre accept warranty anyway?? The broken screen is sort of a dead giveaway that the phone was physically damaged.... so the repair centre cares about TAMPERED but not the shattered screen
.
nkk71 said:
That (ie unlocking, S-Off, etc. etc.) is going to be a long and hard road, and possibly a futile one, because of the high chance that this is a hardware problem.
But here's what you could do, without too much trouble (no unlocking, no nothing, just as the phone is right now:
get firmware 4.20.707.7 (that's what shows on your screenshot) from here: http://xda6.androidrevolution.org/db_mirror/Firmware/index.php?dir=HTC/HTC_One/707/
and flash it:
fastboot oem rebootRUU
fastboot flash zip 4.20.707.7.zip
fastboot flash zip 4.20.707.7.zip <- yes TWICE !!
fastboot reboot-bootloader
The theory behind it is: TAMPERED should show up when you change recovery, the above firmware is official signed one, and would put your firmware back to stock, and if you're lucky remove the TAMPERED.
On the other hand, since you didn't change anything on your phone, but got the TAMPERED message, I would guess your phone has a hardware problem (other than the broken screen), and it's not going to be fixable.
And finally, why would the repair centre accept warranty anyway?? The broken screen is sort of a dead giveaway that the phone was physically damaged.... so the repair centre cares about TAMPERED but not the shattered screen
.
Click to expand...
Click to collapse
thanks for replying. ill try your solution and see if it works.
if its a hardware problem then it happened automatically, sitting on my table connected into charger. the cracked glass was a separate event. and was not claiming warranty for cracked glass. i m willing to pay for it. but Tampered thing is not my fault and hoped that experts there can solve it. but they wont except it even if had just Tampered problem with glass intact.

Is there a way to safely restore warranty after bootloader unlocking?

Hi!
I am an owner of moto g5s plus and while I enjoy the phone I think there are a lot of things the phone could be improved by software-wise, and while I'd love to unlock it's bootloader I am not quite sure if it's possible to restore it's warranty after unlocking it. I read a lot of different opinions. Some say that after restoring the phone the ADB says our phone doesn't have voided warranty, but some say that the phone has a fuse which breaks after unlocking the phone and some even say that I lose my warranty as soon as I redeem the unlocking code for my phone (which I already did so I guess I am in a pretty bad spot already ).
Thank you for your answers!
Correct that the phone has a fuse sort of thing like samsung. Once you unlock the bootloader you trigger a unlocked message and also internally trigger that fuse thing. Once unlocked via the code moto sends you, you can unlock and lock at will, but internally moto will know if it's been unlocked or not, and then has the option to deny warranty repair of any kind. Will they? not always, can they? by all means they can, and have at times. I haven't had to send in any phones from them, but I have had at least 3 variants of moto phones over time, and have unocked each and every one. I have also re-locked the bootloader which then takes off the bootloader nag warning, but as i said internally moto will still be able to tell.
I have also flashed bootup screens successfully so as you would never know it was rooted without know what to look for.
So in short
-yes you can unlock it, but it triggers a stamp/fuse that moto will know.
-You can lock and un-lock at will after you unlock the bootloader via the motorola site and code.
In my case I gave my daughter my moto phone and she does not need root so I formatted, re-set the phone up to factory, and then re-locked the bootloader, and no one was even the wiser. It was like a factory phone. The only ones who would know are motorola themselves, aside from that I have had phones in for repair at the phone places and they didn't even suspect the phone was rooted.
easyrider77 said:
Correct that the phone has a fuse sort of thing like samsung. Once you unlock the bootloader you trigger a unlocked message and also internally trigger that fuse thing. Once unlocked via the code moto sends you, you can unlock and lock at will, but internally moto will know if it's been unlocked or not, and then has the option to deny warranty repair of any kind. Will they? not always, can they? by all means they can, and have at times. I haven't had to send in any phones from them, but I have had at least 3 variants of moto phones over time, and have unocked each and every one. I have also re-locked the bootloader which then takes off the bootloader nag warning, but as i said internally moto will still be able to tell.
I have also flashed bootup screens successfully so as you would never know it was rooted without know what to look for.
So in short
-yes you can unlock it, but it triggers a stamp/fuse that moto will know.
-You can lock and un-lock at will after you unlock the bootloader via the motorola site and code.
In my case I gave my daughter my moto phone and she does not need root so I formatted, re-set the phone up to factory, and then re-locked the bootloader, and no one was even the wiser. It was like a factory phone. The only ones who would know are motorola themselves, aside from that I have had phones in for repair at the phone places and they didn't even suspect the phone was rooted.
Click to expand...
Click to collapse
When you unlock, you have to register with moto and get an unlock code. They know, all they have to do is check a database. You lose warranty, how strictly moto enforces that is unknown - although I have seen an example where a fee was charged for replacing a piece of defective hardware after relocking and restoring stock firmware.
Phazmos said:
When you unlock, you have to register with moto and get an unlock code. They know, all they have to do is check a database. You lose warranty, how strictly moto enforces that is unknown - although I have seen an example where a fee was charged for replacing a piece of defective hardware after relocking and restoring stock firmware.
Click to expand...
Click to collapse
Yep, that is correct.
I've had people I know that rooted and sent it in and moto didn't say a thing about it.
I kinda think some of these companies are getting more lenient on root with the phones. People like samsung and apple are pretty hard core but I think some of the others are not as harsh as to what they are doing these days. I know that I've brought my phone in, and even told them over the phone it was rooted and they didn't even blink an eye and still offered support for stuff, in fact I asked a tech if he could possibly reset the phone via his machine (I forget what phone it was) but he had no problems doing it, and didn't ask any questions either. This was a phone that I remember I couldn't just re-flash stock firmware or anything. It's been awhile back, but it just seems like companies are getting less and less aggressive on root, at least to me anyways.
It is however ultimately up to the company to cover the phone or to refuse coverage, and charge a fee, it's a 50/50 toss up, so if you do decide to do it, realise the end result, that said company "can" refuse service. If your ok with that, there aren't any adverse affects to rooting as far as the phone functionality goes, everything functions just the same as when it was not rooted, but the benefits are you have choices to use things and apps that only work when rooted ie: titanium backup is one that comes to mind.

A couple questions about softmodding the phone

Thinking about getting this phone, the only thing holding me back is the fear of not being able to completely return to stock in case I need it for warranty. Is completely relocking the bootloader possible? (So it doesn't show something different like "relocked", like on Sony.)
How easy it is to brick the phone?
How is "rebranding" to dual SIM possible? Wouldn't that require hardware changes?
QWERTYsystems said:
Thinking about getting this phone, the only thing holding me back is the fear of not being able to completely return to stock in case I need it for warranty. Is completely relocking the bootloader possible? (So it doesn't show something different like "relocked", like on Sony.)
How easy it is to brick the phone?
How is "rebranding" to dual SIM possible? Wouldn't that require hardware changes?
Click to expand...
Click to collapse
Would like to know this as well please. If I root and return to stock, does the phone show the annoying screen like Samsung which shows phone was previously rooted?

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