Over the past few years, a suspicious number of companies have started to "take care of your data", aka block/strictly limit your ability to unlock the bootloader on your *own* devices.
While this may not affect you directly, it sets a bad precedent. You never know what will get the axe next: Shizuku? ADB? Sideloading? I thought it might be a good idea to keep track of bad companies and workarounds.
If you know of specific details/unlocking methods, please PR them or drop them in the [discussions](https://github.com/melontini/bootloader-unlock-wall-of-shame/discussions)
In the past, Huawei allowed you to unlock with a special code you get by submitting some information to emui.com (IMEI, serial, model, and product ID), but in 2018 "corporate values have changed" and the site went down. <br/>
Through HCU-client (Not everything is supported + incredible prices [hcu-client.com](https://hcu-client.com/buy/)) or DC-Unlocker (Same problems as HCU [dc-unlocker.com](https://www.dc-unlocker.com/buy))
In the flaming pile of HMD's "great" decisions to improve Nokia, one stands out more than others: They decided to follow the fresh "lock the bootloader" trend.<br/>
Well, anyway. Models released before early 2019 can request unlocking using Hikari Calyx's unofficial service [hikaricalyx.com](https://hikaricalyx.com/request-bootloader-unlock)
The most annoying thing about them is that you *can* unlock your bootloader, but only if you can get into fastboot. And guess what? They locked fastboot with an RSA key!
As per Realme, they decided that segregating people by ~~race~~ their phone's region is cool. If you didn't buy your phone in China or India, chances are you won't be unlocking anything anytime soon.
In April-May 2023 you could unlock any Realme phone using this script [rmx3474-rooting](https://github.com/turistu/rmx3474-rooting), but on May 26th Realme posted this joke of an announcement on their forum [c.realme.com](https://c.realme.com/in/post-details/1671137365285982208). (They've deleted the original announcement)
Since then, they have forced their servers to only return "new struct" keys, which have model data attached, making the script useless.
In theory, if available, you could use full-OTA packages to change your phone's firmware region and use the deep testing app directly, but I can't verify that this works (please, correct me if I'm wrong). Guide: [xdaforums.com](https://xdaforums.com/t/change-region-via-full-ota.4535659/)
As for China and India... Seeing how easily Realme dropped the ball on their global users, I personally would be worried about their future plans. For now, you'll have to find and follow device-specific instructions at [c.realme.com](https://c.realme.com/in/). The process is pretty much the same for most phones, but newer models may require a HeyTap account.
Also, check out [Xiaomi-HyperOS-BootLoader-Bypass](https://github.com/MlgmXyysd/Xiaomi-HyperOS-BootLoader-Bypass) by [MlgmXyysd](https://github.com/MlgmXyysd).
> While not as extreme, if [xiaomiui.net](https://xiaomiui.net/how-unlock-bootloader-xiaomi-hyperos-53493/) is to be believed, global unlock has also undergone some changes:
> * Your Mi Account has been active for more than 30 days.
> * Xiaomi Community App version 5.3.31 or above.
> * You can only unlock the bootloader of 3 devices per year with your account.
If you have a North American device, well, uh... If you're lucky enough not to update for a while, you can check out [this paid service](https://xdaforums.com/t/android-unsamlock-bootloader-unlock-for-samsung-us-canada-devices.4215101/). (At your own risk)
If you bought your phone elsewhere, and it's not carrier locked, you can use the standard process, but brace yourself for all the breakage coming your way!
For example, unlocking will permanently trip Knox. As a result, *any* Knox-based features will be broken *even if you re-lock*. This includes, but not limited to: Samsung Pay, Pass, Flow, Health, Secure Folder, Secure Wi-Fi, Smart View. Can you be denied warranty? Probably...
Some of those features can be fixed with this LsPosed module [KnoxPatch](https://github.com/BlackMesa123/KnoxPatch) and this Magisk Module [KnoxPatch#knoxpatch-enhancer](https://github.com/BlackMesa123/KnoxPatch#knoxpatch-enhancer).
In addition, some basic features can, and will probably break, such as VoLTE, (thanks to Samsung's proprietary implementation) and in certain cases [even the camera](https://xdaforums.com/t/a52s-5g-sm-a528b-unlock-bootloader-camera-failed.4336007/).
To start off, to unlock your bootloader you have to submit a request on their website, which is pretty bad on its own (*wink* Huawei). But how do you know if your device is unlockable? Well...
* [This page](https://en-us.support.motorola.com/app/answers/detail/a_id/87215) says that "Most of our latest devices support our bootloader unlock program."
* [This page](https://en-us.support.motorola.com/app/standalone/bootloader/unlock-your-device-a) says only "Photon Q 4G LTE, DROID RAZR M(Developer Edition), DROID RAZR HD(Developer Edition CDMA-LTE), MOTOROLA RAZR HD (Rest of World -UMTS/LTE), MOTOROLA RAZR HD (Rogers Canada - UMTS/LTE) and MOTOROLA RAZR i are supported by the Bootloader Unlock site."
* [And from this conversation](https://xdaforums.com/t/how-to-guide-unlocking-using-deeptest-gdpr.4585829/post-88734665) [turistu](https://github.com/turistu) had with their support: "most of our E devices doesn't support bootloader unlock program. Please see below a list of devices that support the bootloader unlock program : g100, g51 , g71 , g200 , g52 , g82 , g42 , g62 , g32"
* There's also an unofficial way with CID to check if your device can be unlocked, check here: [xdaforums.com](https://xdaforums.com/t/guide-un-locking-motorola-bootloader.4079111/post-85375429)
What? OnePlus? Aren't their phones super easy to unlock? - yes, but... <br/>
You probably heard about the OnePlus X OPPO os merger and while it did get called off, both companies started sharing a "unified codebase". You can probably see where I'm going.
If one day OnePlus decides to practice racism like Realme or go nuclear like OPPO/Vivo, they'll have those "unified" tools at their disposal.
All Fairphones after 2 require you to request a code from [this](https://www.fairphone.com/en/bootloader-unlocking-code-for-fairphone) website to enable OEM unlock. There is nothing stopping them from requiring an account and having device unlock limits in the future. This is "proceed with caution" after all.
Not very fair in my opinion, but whatever fairs your phone.
Allows unlocking on almost any non-carrier locked device, but is also a pioneer in making rooting and custom ROMs painful with things like Safety Net and Play Integrity. With the latest feat being RCS messaging which requires DEVICE integrity to work. (To prevent "spam", of course)
If it also happens to be an OPPO/Realme device and you need to access fastboot: [lkpatcher](https://github.com/R0rt1z2/lkpatcher) ([web version](https://lkpatcher.r0rt1z2.com/))
If you own a phone with the Unisoc ud710 or ums512 SOCs you can look into this exploit: [CVE-2022-38694_unlock_bootloader](https://github.com/TomKing062/CVE-2022-38694_unlock_bootloader)
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