This is the first Huawei device I own and I was wondering, what are the consequences of unlocking the bootloader?
Would DRM be lost forever like in Sony Xperia phones?
And if they are lost, does any software on stock Huawei android OS stop working?
Please give as much detail as possible in your answers since I do not want to mess up my new phone.
Unlocking the bootloader permits you to modify entirely the system.
However it comes up that he puts you an annoying message saying that "this device cannot be trusted" EVERYTIME you restart your phone.
Even when you go to your stock or TWRP recovery, it always says this.
When you're rooted and you decide to relock your bootloader, it'll tell that your device is modified so it failed verification... so it's another message in your face !
You'll lose warranty it seems, you'll lose all your data, and DRM might be deleted too (due to the "factory reset lowlevel")
But there are no losses in functionality like on Sony devices. So in general, if you know what you're doing you won't run up against any problems.
Related
I have a Huawei Ascend Y300-0151 and it’s quite impossible for me to unlock the bootloader on this phone because I have to request a bootloader unlock code from the official website and the only way to do that is to request it from the Chinese variant. Even though I fill out a form on their website, it still comes up with errors that I have not filled out the form correctly when every part IS in fact, filled out correctly.
I’ve e-mailed them about the error but I don’t expect a reply back, this has led me to believe I won’t ever get my Huawei Ascend Y300’s bootloader unlocked. I have, in fact, rooted the phone already, but my goal is to flash a custom ROM onto the phone but I need the bootloader unlocked for that.
My question is, what’s the easiest phone to unlock the bootloader with, because it sure isn’t the Huawei type Android phones. I’m looking into getting another phone to unlock the bootloader with, so which is yours guys favourites?
Hi there,
So I am a bit confused, but mostly I am curious... So I have a Sony Xperia Z4 Tablet (SGP771), I bought it off ebay pre-owned and for awhile I have been curious about rooting this device (mainly to block ads and remove unwanted and unremoveable content [ie Facebook] whilst still using stock android, but rooted). But for awhile now I have known that my device in the service\configuration menu has said 'Bootloader Unlock Allow: No' which has excluded me from what feels like everything available in terms of modifying the system to actually be rooted. The device is network locked to O2 UK, which I also assume the device is network restricted in relation to the bootloader also.
So I am confused because some threads have said about unlocking a locked bootloader, whilst most have clearly stated that their modification is not for my device (After having the bad bootloader message after all). So my question is, could someone tell me what actually is available (If anything at all) For me to root this device?
What I have learnt so far is that if I want to change the 'Bootloader Unlock Allowed: No' I would have to switch the motherboard with another one (Which is clearly an extremely expensive process and not something I would want to do). Other than that I would have to wait for an exploit, But I am not sure if there is one available (Yet?) which brings me to my earlier question. Otherwise I would have to continue to use the unrooted stock android, which I dont really have any issue with because I would definitely still root it and use stock if that was available to me (Blasted bootloader rejection).
I would really apprechiate a response on this and thanks for reading XD
I would contact o2 and see if they can help.
Maybe SONY (doubt they will do it) or a SONY repair center (third party).
Replacing the bootloader should be doable in software.
No solution to Xperia Z4 Tablet Locked Bootloader
Hello, I got the same model locked to O2 UK as well and as far as I know there's still no solution to that problem, ie changing the rooting status to YES or rooting the device on a locked bootloader like we all rooted previous Xperia devices. O2 requested Sony to lock the bootloader on purpose. There are many reasons for this. One of them is, O2 doesn't want anyone to change the IMEI of their device if it gets blacklisted, for example. Of course Sony (Service Centre) can unlock it but I doubt we find a Sony member of staff who will risk losing their job for doing so. However, there's a way of uninstalling unwanted apps (bloatware) without root, but this method uninstalls the bloatware for the current user only. So basically if you have several user accounts, you'll have to uninstall those apps as many times, and also keep in mind that the operation is not reversible. So the only way to restore those apps is by factory-resetting the tablet which leads to wiping all the user-data. That method is done via a PC and you need to install, I think, Android SDK as well as Sony drivers. The full guide can be found here
https://www.xda-developers.com/uninstall-carrier-oem-bloatware-without-root-access/
Again, this is not reversible unless you factory-reset the tablet.
If I ever find a solution, or a renegade Sony guy lol, I'll let you know.
When you do the bootloader unlock you need to wait and get some form of security info from Xiaomi itself, but then you can lock back the bootloader and restore everything to factory-like state (and you will be able to pass the most paranoid checks that you would be able to pass from factory state, obviously not Widevine L1 since you can't do that one in the first place).
The question here is if after that you want to unlock again - do you still need a link / secure token from Xiaomi (and thus you are still subject of their control) or you can do it the same way as with Nexus / Pixel or Oneplus phones in fastboot?
Since if that would be the case it absolutely makes sense to make this unlock + re-lock the first time you get the device just in order to be 100% certain that bootloader unlocking is no longer under Xiaomi's later control but your own!
xclub_101 said:
When you do the bootloader unlock you need to wait and get some form of security info from Xiaomi itself, but then you can lock back the bootloader and restore everything to factory-like state (and you will be able to pass the most paranoid checks that you would be able to pass from factory state, obviously not Widevine L1 since you can't do that one in the first place).
The question here is if after that you want to unlock again - do you still need a link / secure token from Xiaomi (and thus you are still subject of their control) or you can do it the same way as with Nexus / Pixel or Oneplus phones in fastboot?
Since if that would be the case it absolutely makes sense to make this unlock + re-lock the first time you get the device just in order to be 100% certain that bootloader unlocking is no longer under Xiaomi's later control but your own!
Click to expand...
Click to collapse
AFAIK the unlocking is always through the Mi Unlocker, whether it is the first time or after re-locking. The fastboot command for unlock won't work. The only saving grace seems to be that you don't need to make a request and wait for 3 days every time. It is applicable for the first time only.
After rooting my Z2 and backing up the TA partition, I've discovered that the bootloader is not unlockable (it's a Vodafone branded device).
Is there a nefarious way in which to bypass this? I understand that the whole point is to keep it locked, but it's an old enough device so I may have missed where it's possible.
Otherwise what are my options for an up-to-date custom rom? As indicated, I've already achieved root and have TWRP installed. I tried flashing Lineage via recovery but got an E: unknown command [log] error.
I'm in the same boat unfortunately. I bought a used phone that had Vodafone UK. It was marked as SIM-unlocked, and that seems to be true; the service info doesn't show any filled checkmarks nor counters in SIM lock information. However, bootloader seems to be locked forever - flashtool reports "Bootloader status : NOT_ROOTABLE" and phone's service menus also say that rooting status is "bootloader unlock allowed: no".
I wasn't even aware there are Sony phones that are not SIM-locked but are still boot-locked without any way to unlock.
I would really want to upgrade from Android 6 to at least 7 because there are some specific apps that work only from A7. Wondering if there is any custom ROM that would run on stock A6 kernel but with everything else from A7? It should be possible to install such a ROM even on a bootlocked device, right?
Since posting I've discovered some answers. The bad news is that, no, custom ROMs are limited without an unlocked bootloader.
The potentially good news is that you can pay for an aftermarket SIM unlock, which has the side effect of also allowing the bootloader to be unlocked.
I've not tried it myself, but do a search for "Sony cable unlock credits" for some leads.
Yea I also am stumbling upon this same news, in my city there are some shady areas so I will ask around and see if anyone is capable of doing it and will let you know.
So far my phone has bootloader locked, sim locked with 3 attempts left so I will work on unlocking those and then rooting the phone and digging deep after
Lets cross our fingers that somethings comes up
So far online , I find only old videos and outdated information, websites down and nothing else.
One thing is for sure, if your bootloader can be unlocked, you just go to sony official website and follow their instructions and its free and easy,
But if it says ""bootloader unlock allowed: no" then...lets see what can we do.
Hey I am willing to pay, why not if its going to unlock the bootloader 100%
Hello Devs,
It's sad to see that to date, Android has not really found a robust solution against theft and loss of devices. Apple's approach with the iTunes/iCloud lock when marked stolen might not be the ultimate solution but it's the best ever to date.
it's sad to see android devices when stolen by the thief performing a complete wipe using the EDL, bootloader, and recovery software and they just get the job done without even confirming if it's the actual owner.
I'd like to ask once again. if there's no option or mods to prevent the power button from functioning when the screen is locked until it has been successfully unlocked before one can access full power menu features? or an option to hard lock the flash partition with a code that anytime it has been rebooted into download mode, will ask for a password/code before proceeding to wipe the device completely. ? this is something consumers and manufacturers should start taking into consideration. all this might not sound too important until you accidentally lost your device. any suggestions?