Questions tagged [bootloader-lock]

Some bootloaders are locked by the manufactures to prevent the phones from booting unofficial firmware images.

82 questions with no upvoted or accepted answers
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How to unlock bootloader on samsung devices?

Before you try to install any custom ROM on your device, you need to unlock the phone’s bootloader, which is a code executed before any OS (operating system) launch. The notion of a bootloader is ...
4
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2answers
494 views

Android Nexus 6 Bricked? TeamWin splash screen turns on and off

I think I've bricked my Nexus 6. Every time I turn it on, the teamwin (TWRP) splash screen keeps literally flashing on and off. I would be able to flash a stock system on but I can't due to the fact ...
3
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1answer
498 views

Moto E (1st Gen) Bootloader Unlocking

There was some problem with my 1-yr-old Moto E 1st gen. It got dead and after some time the dead android guy appears with some red-blue thing on its chest. It appears for half a second. I pressed ...
2
votes
1answer
331 views

As of vendors - whose bootloaders are easy to unlock, and whose not?

The vendors differ in their attitude to unlocking the bootloader. Some require codes for unlocking, some not. Some require proprietary, Windows-only software, other not. Which of the vendors are ...
2
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0answers
15k views

Cannot flash Moto G3 2015 due to “Preflash validation failed” error?

I have a Moto G3 XT1550 phone. I had to reset the phone as its UI was restarting on its own after 1-2 minutes of usage. After the phone booted, it asked me to enter the GMail and password the phone ...
2
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0answers
1k views

What dose “Enable OEM Unlock” do, and how can I do it through a root shell?

Looking at this Samsung Galaxy A8 question, I was looking to do something on my nexus 6p. I would like to enable OEM unlocking, the developer setting. Due to the problems my device is experiencing, ...
2
votes
0answers
828 views

Any chance to unbrick relocked HTC One M7 with S-on and a old copy of the RUU.zip

Background After 1 year of use, the most recent OTA to my HTC One rendered several key features, including the notification bar and the home and back buttons, unusable , effectively soft-bricking ...
2
votes
1answer
1k views

Oppo find 7: bootloader re-lock impossible?

I tried to relock the bootloader on my Find 7 (which I'm pretty sure was unlocked since I installed a custom rom). fastboot oem lock ... After that nothing. Windows console is "stuck". Any clue?
2
votes
0answers
450 views

Unlocking bootloader on Sony Ericsson NEO V

Has anybody managed to use Fastboot on Ubuntu to unlock the Sony Ericsson Neo V? I tried and got the blue led light (bootloader) while connecting the USB. But Fastboot still doesn't recognize the ...
1
vote
2answers
865 views

OnePlus 5 Soft Brick

I have a OnePlus 5 and it won't boot. The phone is stuck on black screen and blue led (can't boot) since 20 days and I tried everything I saw on the web to make it boot again. I tried : to flash ...
1
vote
1answer
805 views

Samsung S6 Active Will Not Boot, AP Rom Flash Succeeds (Bootloader Flash Fails - EDIT: BL Flash Works, Device Still Won't Boot)

(See Update Below) Hi all and thanks in advance for your help. I am having trouble with my S6 Active. It has been stuck in a boot loop for a week now. It was running stock beforehand. I flashed a ...
1
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0answers
61 views

-1: Unknown error while unlocking redmi 3s+ bootloader

So I tried to unlock bootloader of my Redmi 3s+ .It shows error " -1:Unknown error" but it also displays Unlock button .Downloaded the flash tool and rebooted the phone couple of times but nothing . ...
1
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0answers
147 views

Unlock bootloader on Dell Venue 10 5050

I have a bricked Dell tablet that doesn't boot and also a has locked bootloader (Secure Boot: Enable). I've made a full partition dd backup, but now I cannot flash it via fastboot supposedly because ...
1
vote
0answers
3k views

Unlock Bootloader on Samsung Galaxy S6 AT&T

I'm trying to root my phone, and I was told that because I own a Galaxy S6, I need to unlock my bootloader. My carrier is AT&T, which makes it apparently even more difficult. I've tried things ...
1
vote
1answer
791 views

Unlocking Bootloader Moto G Unable to bootup

I have been trying to unlock the bootloader on my Moto G 3rd Gen, so I can install TWRP Custom recovery and flash a new system image, as my phone will not boot up at all (including recovery mode). I ...
1
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0answers
128 views

Bootloader questions

I'm trying to learn about the android's bootloader. However, I got into some questions : There are the SECURE BOOT and LOCK STATE. The LOCK STATE (if enabled) makes all partitions to read-only mode (...
1
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0answers
1k views

Unlock Moto E OEM Bootloader without the Passcode from Motorola

I need to unlock my Moto E phone(2nd Gen). To do this, I want to unlock the bootloader first. I got the 'get_unlock_data' and sent it to Motorola, But I did not get the passcode from them :( Could ...
1
vote
0answers
494 views

Unlocking oem Elephone p9000

I'm trying to flash TWRP on my elephone P9000, but when I use SP flash tools it doesn't download anything to my device, so I decided to try adb. To get access to write a new recovery, I need to ...
1
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0answers
656 views

Wipe Data on Locked Phone Stuck in Boot Loop without Recovery

I am returning a Project Fi Nexus-5X device that went into a boot loop but want to wipe all my data off it before shipping it back to Google Fi. However: the device is oem locked any fastboot erase (...
1
vote
1answer
696 views

Unknown error in bootloader during unlock after crash

With my ACER a700, Android crashed. Now, each time I turn it on it starts in fastboot mode. I tried to unlock bootloader to install Cyanogen, but after command line I have an response like "Error: ...
1
vote
1answer
3k views

Possibility of Hard brick with unlocking boot-loader and installing Custom ROM

My android device CPU is MT6592 (8xARM Cortex –A7@1664 MHz) with instruction set 32-bit ARMv7. Board and product is ht1_107a_iball_mjk. Apart from this, Codename is REL, Internal Memory is 16GB and ...
1
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0answers
566 views

Volume Up button does not respond while unlocking bootloader

I have an InFocus M260 (MediaTek MT6582 based). It has a locked bootloader and whenever i try to unlock the bootloader, this shows up : fastboot -i 0x0489 oem unlock in the device it shows press ...
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0answers
2k views

Nexus 9, no recovery, no USB debugging, OEM locked in Settings

I've got a pretty complex problem. At the moment: Nexus 9 WiFi Tablet, USB Debugging not enabled Normal Startup: Android laying on the floor Startup with Power+Volume Down: Fastboot Bootloader ...
1
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0answers
160 views

Sony Xperia SP model not listed in 'developer.sonymobile.com/unlockbootloader' for bootloader unlocking

I don't know how I can unlock my Xperia SP phone, because the model is not listed in the site http://developer.sonymobile.com/unlockbootloader so I couldn't continue. My logic says there might be some ...
1
vote
0answers
370 views

How can I unlock bootloader of LG Vortex (VS660)

I'm trying to flash CyanogenMod to an old LG Vortex. I believe the first step is to unlock the bootloader. (I have successfully done this to a Nexus 7). I have adb and fastboot installed on LM17. Most ...
1
vote
1answer
287 views

Nexus 4 screen got hung until battery drained and on restart stuck on flying dots

I have nexus 4 with lollypop installed on it. Yesterday while operating its screen just went to hung state and stopped responding. I could not even power off the phone. Therefore, I let the phone to ...
1
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0answers
2k views

How do I root a Samsung Galaxy S4 SGH-I337?

I have a Samsung Galaxy S4 SGH-I337 with a I337UCUAMF3 baseband. How do I either root it and unlock the bootloader or install a mod? Alternately, can I change it back to a previous baseband and unlock ...
1
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0answers
18k views

**FAILED (remote: 12 signature verify fail)** HTC One M7

C:\xxx>fastboot flash recovery c:\recovery.img sending 'recovery' (10336 KB)... OKAY [ 1.988s] writing 'recovery'... (bootloader) signature checking... **FAILED (remote: 12 signature verify fail)**...
1
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1answer
279 views

Incompatible / error connecting as MTP device after unlocking and rooting Nexus 4

I unlocked and rooted my Nexus 4 it shows as connected it shows in my computer But when copying a file, it gives me an error stating "device is unavailable or may have been removed" What should I ...
1
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0answers
503 views

How to unlock the bootloader on Verizon Galaxy S3 without phone service

How can I unlock the bootloader without any phone service? Do I have to take out the Verizon SIM to do this? The phone is already rooted and has the super user app. A website said it's possible to use ...
1
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0answers
398 views

How do I unlock my bootloader with Omnius?

I want to unlock the bootloader of my Carrier Locked O2-UK Xperia Play. When I go into the service menu and check if my bootloader can be unlocked it says "allowed:no". After further research I found ...
1
vote
1answer
859 views

How do I unlock the bootloader on an LG K120 (K4 LTE 2016)?

I got a used LG K4 off eBay and I'm looking to flash a Marshmallow ROM. I tried downloading the SuperSu ZIP file and booting into recovery, but the only option was factory reset. I rebooted and ...
0
votes
0answers
42 views

How to unlock bootloader on nexus from bootloader/PC command line

I have a nexus 5X phone, which needs a factory reset to fix it's infinite boot loop. The problem is that the bootloader says DEVICE STATE - locked. Is it possible to fix this?
0
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1answer
67 views

Re-locking bootloader with stock ROM/recovery - Wileyfox Swift 2 Plus

I recently unlocked the bootloader on my Wileyfox Swift 2 Plus to take a partition image, as per this answer. I didn't flash the recovery or make any change to the ROM, and the device is not rooted. ...
0
votes
1answer
29 views

Does my Galaxy S6 have an unlocked bootloader?

I want to install the Resurrection Remix custom ROM on my SM-G920I (Australian Version). Before I start doing anything, I need to make sure that the bootloader is unlocked, so I don't brick my phone. ...
0
votes
0answers
36 views

Fastboot Device not Detecting my Device

I'm following this tutorial about how to unlock bootloader on Moto. My device is a Moto G5, and my computer has windows 10. On the command line, I can type adb devices and it returns my device. I ...
0
votes
1answer
147 views

Troubleshoot fastboot error 'remote: ' command not defined

Device: iMX 7ULP evaluation kit Platform-tools: r28.0.3 Image: O8.1.0_1.4.0_ANDROID_TOOL_7ULP_GA (ARM 32 Android 8.1) I used the image provided by nxp website on the device. Then I tried ...
0
votes
0answers
37 views

Can I enable my fingerprint lockscreen whitout (!) enabling encryption

I like to regularly backup my data partition using TWRP. I noticed once I enable my fingerprint screenlock, TWRP is unable to access my data partition because Android 8.0 encrypts it from the moment I ...
0
votes
0answers
567 views

Corrupt and locked Pixel 2 bootloader

I recently came in the possession of a Pixel 2 that will not boot and instead displays the following error (see the image below for more details): ERROR: Slot Unbootable: Load Error The friend that ...
0
votes
0answers
17 views

Moto g4 play is not supported by bootloader unlock program, anybody know any unofficial ways to unlock it

After days of arguing with various Motorola Customer service people, Istill have not found the reason to which the Motorola g4 play (no ads version) is not bootloader unlockable. It is not supported ...
0
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1answer
52 views

Lock bootloader with broken USB port

I bought a Xiaomi Mi A2 maybe 10 months from now, and from changing software, or some strange things, I broke the USB port. The strange thing is that only the "OTG" part got broken. I mean, I still ...
0
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0answers
78 views

Sony Xperia X Rooting issue when the unlock bootloader flag is set to no

I am trying to unlock a Sony Xperia X that was locked to a Canadian carrier (Freedom). The previous owner sold me the phone unlocked (SIM) but he failed to unlock the bootloader. I followed the ...
0
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0answers
2k views

Unable to unlock bootloader of OPPO F7

I have bought oppo f7, which comes with android 8.1 firmware. It has been 5 months since the purchase and obviously it is still in warranty period. I wanted to root my phone for the reasons you may be ...
0
votes
1answer
357 views

Bootloader unlock HTC Desire 12+

I am trying to unlock the bootloader of my HTC Desire 12+. I tried several tutorials but they all failed. Here is what I did so far: I boot the phone into recovery mode Start the bootloader After ...
0
votes
0answers
30 views

Is there a way to know phone model without open it?

I rooted my Samsung J1 phone and how it can't boot because the FRP lock is on. According to Phone boot loop, Custom binary blocked by FRP lock, then Samsung Firmware Odin: Download & Flash ...
0
votes
0answers
75 views

Google Nexus 7 (2013 Wi-Fi) Boot freeze, no recovery options working

I bought a Google Nexus 7 2013 edition, Wi-Fi only, from a yard sale. I have no clue what the previous owner did or tried but I cannot get it to boot. I'm not by any means an Android expert so if it ...
0
votes
0answers
131 views

Sony XPeria T service menu app missing

I just found out that I have a Sony XPeria T, not a Sony XPeria Z1 Compact. After years of owning it. Wow. So I wanted to try some things that I previously discarded because they weren't possible with ...
0
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0answers
280 views

Moto g4 plus can't be unlocked

When I go to unlock my moto g4 plus, I get a message that my computer cannot be unlocked. This is the getvar all result (bootloader) version: 0.5 (bootloader) version-bootloader: moto-msm8952-B1.07 (...
0
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0answers
2k views

Huawei Unlock code site not working - How to get Honor 6X unlock code?

All is in the title : How to get Honor 6x unlock code since this url 'https://emui.huawei.com/en/plugin/unlock/index' is dead ?
0
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1answer
222 views

Can I install apps to adopted SD card from recovery?

WhatsApp is stubborn about not installing to SD card. I have an unlocked bootloader, but have not rooted or installed a custom recovery yet. I am trying to avoid rooting because of SafetyNet, and ...