I'm trying to unlock my bootloader using the V35 bootloader someone on the forum had previously uploaded, however I wasn't able to access fastboot by any means (hardware buttons and software). I'm wondering if I were to nuke laf_a and laf_b partitions using QFIL, could I gain access to fastboot? Will it cost anything other than download mode?
Only thing youll lose download mode. But keep holing power with volume down, the 3rd finger can rapidly press volume up button. It should enter edl cus it took me like 3 reboots to see then black screen edl.
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Hi
Bricked my p9
It is unlocked and I cannot get it to go into erecovery mode - Basically cannot get past the 'your device has been unlocked and cant be trusted screen.'
If I turn it off and hold volume up and power, it just go back to the your device is locked screen. I am able to get into fastboot mode by holding volume and down. ADB devices shows nothing but fastboot devices does.
Any suggestions?
Thanks
Rob
You could flash TWRP via fastboot and install a ROM or wipe data.
I just received this smartphone from a friend of mine.
The smartphone is locked on the "androidone" logo.
In the past I fiddled with different andorid devices but with xiaomi I am really puzzled, I don't know how to move.
I tried to enter recovery mode, pressing "vol +" and "power" without a positive result.
I can get into fastboot mode and try to flash the rom with miflasher but I get an error: can not file all.bat.
How can I solve it?
Is your bootloader unlocked?
first unlock bootloader (critical too) then try to flash original stock rom with miflash. Dont try to downgrade android version idk you know it or not but A2 has antiroolback projection which if you downgrade your android version (ex: 9.0 to 8.0) device will delete your phones IMEI code. And the only way of fix that is change main board.
Maharram said:
first unlock bootloader (critical too) then try to flash original stock rom with miflash. Dont try to downgrade android version idk you know it or not but A2 has antiroolback projection which if you downgrade your android version (ex: 9.0 to 8.0) device will delete your phones IMEI code. And the only way of fix that is change main board.
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Click to collapse
thanks for replay.
I tried to unlock the bootloader with adb commands but the console returns an error.
I remind you that the phone does not start.
cicci0 said:
thanks for replay.
I tried to unlock the bootloader with adb commands but the console returns an error.
I remind you that the phone does not start.
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Click to collapse
You must boot to phone and check oem Unlocking at developer options first. You said u can't enter recovery, at mi a2 is little bit tricky, you keep power and volume + buttons until restart and enters a black screen and after u push 1 time (without keeping buttons) power and volume + button again and it enters at recovery
vagsvag said:
You must boot to phone and check oem Unlocking at developer options first. You said u can't enter recovery, at mi a2 is little bit tricky, you keep power and volume + buttons until restart and enters a black screen and after u push 1 time (without keeping buttons) power and volume + button again and it enters at recovery
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Arrivo alla schermata nera, ma poi non entra in recovery, premo i tasti ma non va.
I get to the black screen, but then it doesn't go into recovery, I press the keys but it doesn't work.
cicci0 said:
Arrivo alla schermata nera, ma poi non entra in recovery, premo i tasti ma non va.
I get to the black screen, but then it doesn't go into recovery, I press the keys but it doesn't work.
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Click to collapse
Power first volume +after, it is little bit tricky but try again it is working. Also if you can't find the compo try this at black screen hold power button and push once volume +
vagsvag said:
Power first volume +after, it is little bit tricky but try again it is working. Also if you can't find the compo try this at black screen hold power button and push once volume +
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Click to collapse
I have seen many videos on youtube and I realize that the system is compromised.
Recovery mode is impossible to start. Following all the steps I get only a black screen and the recovery does not start.
My question is: Can't I install the firmware via fastboot?
I saw some videos showing a jumper to send the phone to QUALCOMM mode.
Can I flash in this mode having the bootloader blocked?
cicci0 said:
I have seen many videos on youtube and I realize that the system is compromised.
Recovery mode is impossible to start. Following all the steps I get only a black screen and the recovery does not start.
My question is: Can't I install the firmware via fastboot?
I saw some videos showing a jumper to send the phone to QUALCOMM mode.
Can I flash in this mode having the bootloader blocked?
Click to expand...
Click to collapse
I can't enter to TWRP recovery u right there is a problem with some Mi A2 devices.
Qualcomm mode is EDL (Qualcomm emergency downloader) and no u can't install firmware or any other thing with bootloader locked. I have googled the enabling oem unlock via fastboot but thats too hard and complicated thing u need to know a lot of things about Android system files, fastboot and .java files to enable it if there is a someone can try to find how to do it and give us a tutorial about that that will be great because thats important thing cuz we can get boot loop with system updates .
Here is the screenshot of the enabling oem unlock via fastboot
cicci0 said:
I have seen many videos on youtube and I realize that the system is compromised.
Recovery mode is impossible to start. Following all the steps I get only a black screen and the recovery does not start.
My question is: Can't I install the firmware via fastboot?
I saw some videos showing a jumper to send the phone to QUALCOMM mode.
Can I flash in this mode having the bootloader blocked?
Click to expand...
Click to collapse
I haven't try this but I think you can do that. There are many persons here at forum that they have used this. Search them threads before u start to see exactly how you do this (I think it is time limited the edl mode via jumper)
Here is a similar situation, read the last messages, there is also a video tutorial.
https://forum.xda-developers.com/mi-a2/help/mi-a2-bricked-bootloop-solution-edl-t3911466
Solved !
I have solved with qualcomm mode.
Please give me some details about solution
cicci0 said:
I have solved with qualcomm mode.
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Click to collapse
which version of MiFlashTool You use. 2018 or 2016??
and which rom package you use. can you send links. oreo / pie ??
I have stuck android one logo after flashing 8.1 or 9.0 flashtool 2016.04.01(64bit) didnt open system
I do EDL mode with two pin shortcut. but rom not open anymore.
Hi, Im kinda new to this bootloader thingy. What happen is, i updated the razer phone 2 to Pie, but notice wifi and sim card cant be detect. Even factory reset fails. So i thought of flashing new image on it. KINDA easy on my oneplus, but im not sure where I gone wrong on this razer phone 2, i accidentally unlock the bootloader. NOW the problem is HOW to relock it back? i been follow all youtube and guides all over the place but still fails.
The state of device atm, cannot be boot into Download Mode. Everytime I plug in usb c from Windows, it will boot into unlock bootloader warning page, and continue boot into the homescreen. testing the adbtools, fastboot also to no avail. Can anyone help and guide me how to relocking it back? Maybe i type wrongly on cmd or maybe other android steps not similar to razer one etc....:crying:help much appreciated.
Hold volume down while turning on. Then fastboot flashing lock.
the stock usb doesnt send things correctly in BL mode, https://www.amazon.com/Blackweb-3-Foot-Charge-Cable-Connector/dp/B07SG7P3KZ/ worked for me. with the correct usb cable you should be able to perform the lock commands correctly. can you give us more detail of what you tried on this phone so we know if we need to provide you additional information?
https://developer.razer.com/razer-phone-dev-tools/general-instructions/
"Locking the Bootloader
Locking the bootloader is recommended for security reasons. Some applications will not work with an unlocked bootloader.
Start the Phone in Download Mode with one of the following methods:
Using the adb tool: With the Phone powered on, execute: adb reboot bootloader Enter Download Mode:
Plug in a USB cable to connect your Razer Phone to your computer, Power Off the Phone, then turn it on and immediately press and hold the Volume Down button until “Download Mode” appears on screen.
Lock the critical partitions of the Bootloader first by running this command: fastboot flashing lock_critical
Your Razer Phone will show you a confirmation screen. Use the Volume Up/Volume Down buttons for navigation, and press the Power button to select. Your Phone will reboot."
I can't seem to enter download mode. All I have is fastboot mode and the option to either reboot, close the phone or enter recovery mode. I would really like to lock the bootloader, but I can't seem to be able to detect my phone on my PC even though I installed the fastboot driver.
The_Vinlander said:
I can't seem to enter download mode. All I have is fastboot mode and the option to either reboot, close the phone or enter recovery mode. I would really like to lock the bootloader, but I can't seem to be able to detect my phone on my PC even though I installed the fastboot driver.
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Click to collapse
You must use a USB 2.0 port. The RP2 isn't detected by fastboot when connected to a 3/3.1 port.
Reznor7 said:
You must use a USB 2.0 port. The RP2 isn't detected by fastboot when connected to a 3/3.1 port.
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I tried this, but to no avail. I tried with 2 cables I had and it keeps telling me < waiting for device > when I enter this command; fastboot flashing lock_critical
The_Vinlander said:
I tried this, but to no avail. I tried with 2 cables I had and it keeps telling me < waiting for device > when I enter this command; fastboot flashing lock_critical
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Click to collapse
You need to go into your device manager and select [ android bootloader interface ] while in fastboot
Hi,
my hardware volume keys do not work anymore and I would like to upgrade the firmware so I can upgrade to LineageOS 17.1 (from an old los 15) but to do so with Newflasher I've got to get into flash mode. Is there a way to do so without the volume down key pressed? i.e. with adb or fastboot?
Thanks
I believe it is:
adb reboot bootloader
I haven't tested it though. Maybe that gets you into fastboot mode.
Ephesus said:
I believe it is:
adb reboot bootloader
I haven't tested it though. Maybe that gets you into fastboot mode.
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Click to collapse
Nope. Doesn't seem so. Tried it and newflasher doesn't work on bootloader mode. Also the led light is blue at this mode and as far as I understand it should be green in flash mode. Any other ideas?
Thanks
You are correct, fastboot (blue light) and sony flash mode (green light) are different. Fastboot needs to be accessed with the things using the fastboot protocol and newflasher needs the sony flash mode.
I don't have an answer to how to get into flash mode, but I wonder if the Sony PC Companion's repair could get you back to stock and then you can use fastboot to flash recovery, etc. I haven't used it in a long time so, it may require you to hold vol-dn also.
Once upon a time, I think, flashtool could work through fastboot mode though. Since your bootloader is unlocked that's an avenue to try. If that can't do firmware, another option might be to have someone on the correct version copy their firmware, bootloader, whatever partitions for you to copy over. But that would only work if there's no other changes outside those partitions.
I have lg v40 405ebw running on android 10 and i want to unlock bootloader problem is when ever i uses command "adb reboot bootloader" phone simply reboots and not entering in bootloader/fastboot mode.. i can get into download mode by holding volume up key. how to get into bootloader?
Any solution of this?
hassanulhaq said:
I have lg v40 405ebw running on android 10 and i want to unlock bootloader problem is when ever i uses command "adb reboot bootloader" phone simply reboots and not entering in bootloader/fastboot mode.. i can get into download mode by holding volume up key. how to get into bootloader?
Any solution of this?
Click to expand...
Click to collapse
did you do everything correctly according to this instruction https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207? once again, forgive carefully and you will succeed!by the way, if you have a European version of the device, you can officially unlock the bootloader via the lg website https://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryId=CTULRS0702
hassanulhaq said:
I have lg v40 405ebw running on android 10 and i want to unlock bootloader problem is when ever i uses command "adb reboot bootloader" phone simply reboots and not entering in bootloader/fastboot mode.. i can get into download mode by holding volume up key. how to get into bootloader?
Any solution of this?
Click to expand...
Click to collapse
as lexih is pointing out, **if** your device is an original oepn 405ebw, I'm pretty sure that is the only version that LG **officially** allows bootloader unlock for. **Assuming** that is the device you have (not flashed to, but the actual device), then contact LG.
Otherwise, follow the thread lexih provided for how to use qfil to flash the engineering abl to the abl partition, and it will allow you to unlock the device. Follow all the instructions, I'm just paraphrasing here, there are quite a few steps involved.
cheers
(french) hello i have the same probleme. i can't turn the phone in edl mode, when i reboot in fastboot it's normally reboot. when i press volume down and plug the usb type c i have "firmware update on white screen"
on the officiale lg site i don't find the phone id fastboot don't work. how we can the phone id please?
the solution write by me
edl mode 9008 v40 very easy
(french) hello I could not start in edl mode with the xda instructions but I found a videos phone on android, connected to the computer by usb. you keep pressing the power button and the volume down button. when the screen goes black...
forum.xda-developers.com