Database Info

[Q] P3100 Unlock Bootloader, FastBoot, Modes

I apologize if I have understood this all incorrectly, but kindly clarify the following for me.
What I have already done:
1. Installed CWM (ClockWorkMod) on the tablet: Galaxy Tab 2 7.0 using Odin
2. Installed the rooting zip file from external sd
3. Made a backup image on an external sd
What I need to do:
1. Flash a custom ROM onto the device from my PC using fastboot
Errors:
1. Fastboot devices returns nothing (absolutely no response... please find the attached pic)
2. Adb reboot bootloader - just reboots the OS (not in fastboot)
3. Fastboot oem unlock says waiting for device endlessly.
My Queries:
1.I have a recovery mode and download mode (aka odin mode). Is either of them the FASTBOOT mode or is fastboot something completely different. If so how to get into FASTBOOT mode??
I read I have to get a USB icon and a Fastboot mode display on screen. I do not.
2. Why is my device not showing under fastboot devices (on download mode, neither show the device.), but adb devices shows the device under recovery mode
3. Is it possible to flash a ROM using fastboot if I have CWM installed. Or does CWM disable fastboot?
4. Also does this device have a Fastboot mode at all? If yes how to get into Fastboot mode??

From what I've read here, there is no fastboot mode on the Tabs.

Balthazar B said:
From what I've read here, there is no fastboot mode on the Tabs.
Click to expand...
Click to collapse
In that case, how do I flash a custom ROM onto the device?
Thanks!

rtindru said:
In that case, how do I flash a custom ROM onto the device?
Thanks!
Click to expand...
Click to collapse
load it on your external sdcard, boot into cwm and do a fullwipe/factory reset then install the zip from sdcard. poof, rom installed
to boot into cwm, turn off the tablet.
press and hold power and volume down (the one closes to power button) once the samsung tablet logo appears let go of power and continue holding vol down until cwm appears (this can take a couple minutes)

Thanks then!
Darunion said:
load it on your external sdcard, boot into cwm and do a fullwipe/factory reset then install the zip from sdcard. poof, rom installed
to boot into cwm, turn off the tablet.
press and hold power and volume down (the one closes to power button) once the samsung tablet logo appears let go of power and continue holding vol down until cwm appears (this can take a couple minutes)
Click to expand...
Click to collapse
Well thanks for the info.

Nexus 5 Bootloop + No Power Button + Locked Bootloader + NO ADB -- Recover Data

Hey guys, so I have this dilemma on my hands. One of my friends has a Nexus 5 that has a power button issue. It seemed like a stuck power button, because even cleaning it did not solve the issue. So I removed the power button, and it finally turned on. However, it's now stuck in a Google logo bootloop.
The Objective:
To recover all data on the device. This is a must.
The Obstacles:
- No physical power button, but I can place a pair of tweezers on the terminals on the board to simulate a power button press.
- Bootloader is locked (I can unlock it, but that erases all data on the phone).
- Cannot enter proper stock recovery (I get a "no command" error when I do; I've tried all button combinations afterwards, including the ones from HERE, but to no avail).
- USB debugging was not enabled on the phone when booting normally, so even though the phone is recognized by my PC, I cannot do anything using ADB.
- Fastboot mode is the only successful mode I can reach on the phone.
The Final Question:
Does anyone know how I can successfully recover all the data on the phone using ADB or any other method, having the above obstacles?
Thanks in advance.

If you can reach fastboot without any problem, you can try to boot a custom recovery image using the following command : fastboot boot recovery yourcustomrecovery.img
(if you dont have a custom recovery, you need to flash one with : fastboot flash recovery yourcustomrecovery.img)
It will boot in recovery mode and, I hope, allow you to have an adb access and recover your data.
edit : since your bootloader is locked, i guess this won't work.

MrKhozam said:
Hey guys, so I have this dilemma on my hands. One of my friends has a Nexus 5 that has a power button issue. It seemed like a stuck power button, because even cleaning it did not solve the issue. So I removed the power button, and it finally turned on. However, it's now stuck in a Google logo bootloop.
The Objective:
To recover all data on the device. This is a must.
The Obstacles:
- No physical power button, but I can place a pair of tweezers on the terminals on the board to simulate a power button press.
- Bootloader is locked (I can unlock it, but that erases all data on the phone).
- Cannot enter proper stock recovery (I get a "no command" error when I do; I've tried all button combinations afterwards, including the ones from HERE, but to no avail).
- USB debugging was not enabled on the phone when booting normally, so even though the phone is recognized by my PC, I cannot do anything using ADB.
- Fastboot mode is the only successful mode I can reach on the phone.
The Final Question:
Does anyone know how I can successfully recover all the data on the phone using ADB or any other method, having the above obstacles?
Thanks in advance.
Click to expand...
Click to collapse
I bit of a trick. Try 'fastboot flash boot recovery.img' but instead of kernel flash twrp. After flash do a 'fastboot reboot'. It will boot recovery. Via twrp the pc will recognize phone as a media storage. You will not erase any data

icrunchbanger said:
I bit of a trick. Try 'fastboot flash boot recovery.img' but instead of kernel flash twrp. After flash do a 'fastboot reboot'. It will boot recovery. Via twrp the pc will recognize phone as a media storage. You will not erase any data
Click to expand...
Click to collapse
Thanks for the response, but the bootloader has to be unlocked for that to work, and while I can do that, it will wipe the data I need.

PLEASE HELP! Bricked Honor 8

Hi,
I was trying to flash TWRP, but now I am stuck with flashing TWRP logo after rebooting or powering the phone on.
I am unable to get to the fastboot.
STEPS I did before brick:
1. unlocked OEM via official way
2. flashed TWRP
3. after that my phone was reset however most of the apps was missing, I was trying to do factory reset once again but it failed with the message "Data partition was heavily damaged"
4. I re-locked EOM
5. brick as mentioned above
Please help, I have the phone only two weeks and I have no idea how to fix this without fastboot.
Thank you.

Meiton said:
Hi,
I was trying to flash TWRP, but now I am stuck with flashing TWRP logo after rebooting or powering the phone on.
I am unable to get to the fastboot.
STEPS I did before brick:
1. unlocked OEM via official way
2. flashed TWRP
3. after that my phone was reset however most of the apps was missing, I was trying to do factory reset once again but it failed with the message "Data partition was heavily damaged"
4. I re-locked EOM
5. brick as mentioned above
Please help, I have the phone only two weeks and I have no idea how to fix this without fastboot.
Thank you.
Click to expand...
Click to collapse
Sounds like you flashed the 3030 version of TWRP. Download the 3020 version and put it in your fastboot folder. Plug in the USB to PC
Hold power and volume up untill the phone reboots. While it's still off immediately change to power and volume down and hold till it goes into fastboot (bootloader)
Now fastboot flash recovery TWRP.img
With the 3020 version.
Unplug the USB and hold power and volume up until it says the phone is booting.. let go and TWRP will load.
Go to Wipe / format data / type yes
Reboot to system and your all set
Sent from my Nexus 6P using Tapatalk

clsA said:
Sounds like you flashed the 3030 version of TWRP. Download the 3020 version and put it in your fastboot folder. Plug in the USB to PC
Hold power and volume up untill the phone reboots. While it's still off immediately change to power and volume down and hold till it goes into fastboot (bootloader)
Now fastboot flash recovery TWRP.img
With the 3020 version.
Unplug the USB and hold power and volume up until it says the phone is booting.. let go and TWRP will load.
Go to Wipe / format data / type yes
Reboot to system and your all set
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
So I've tried that but the phone is still booting to recovery (flashing TWRP logo) no matter what.
Basically the phone is always on now because if hold the power button (or any other combination) for a few second it will just reboot back.
I have an access only to ADB, but I am not able to boot to bootloader at all, it seems the bootloader is damaged somehow.
Also that warning about unlocked OEM doesn't have that text saying "hold volume up to boot to recovery" etc. like before brick.

Hi there,
Try using the Huawei Multi Tool with the Unbrick option : https://forum.xda-developers.com/honor-8/development/tool-huawei-multi-tool-team-mt-t3523923
Speaking from experience, this little fellow helped me recover my phone when I bricked it ON DAY ONE after failed root attempt... (Derp)
Let me know if it helped you
(Leave a thanks if it did )
EDIT : This tool is also useful if you want to get lazy whilst rooting. I use it constantly when flashing diffrent bits and pieces

Clearly follow My steps To unbrick and get normal device ::
Step 1 ::
Download the full firmware of your device.
Step 2 :
make sure that your bootloader is in unlocking state
Follow the video blindly ::: https://youtu.be/OMKDnBqbi3U?list=PL...eT9J26lkefvVkK
don't panic of mobile.
Step 3 :: done ..enjoy u did it
--------------------------------------------------------------------------
If you bricked on nougat then follow the below steps
step one :::
download the downgrade package to mm .
then extract the zip and open the update.app using HuaweiUpdateextrator in that select recovery and extract
1.now, boot your device into fastboot and flash the recovery (Optional)(try this if it said incompatible version on recovery)
2. on your sd card and make a folder "dload" . and copy the update.app which we have extracted earlier
3.the switch off the device and press all three buttons you will be reboot into recovery and done . you device will be okey

Meiton said:
So I've tried that but the phone is still booting to recovery (flashing TWRP logo) no matter what.
Basically the phone is always on now because if hold the power button (or any other combination) for a few second it will just reboot back.
I have an access only to ADB, but I am not able to boot to bootloader at all, it seems the bootloader is damaged somehow.
Also that warning about unlocked OEM doesn't have that text saying "hold volume up to boot to recovery" etc. like before brick.
Click to expand...
Click to collapse
Booting to the bootloader is just a timing issue
Phone must be hooked to PC with USB
And volume up and power till it goes black
Then immediately volume down and power and Hold untill the bootloader loads
Keep trying until you get it
Sent from my Nexus 6P using Tapatalk

clsA said:
Booting to the bootloader is just a timing issue
Phone must be hooked to PC with USB
And volume up and power till it goes black
Then immediately volume down and power and Hold untill the bootloader loads
Keep trying until you get it
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
I appreciate your help but I've tried it multiple times always with the same result.
I also can use "adb reboot bootloader", but it will reboot again to stuck recovery.

DJ Daemonix said:
Hi there,
Try using the Huawei Multi Tool with the Unbrick option : https://forum.xda-developers.com/honor-8/development/tool-huawei-multi-tool-team-mt-t3523923
Speaking from experience, this little fellow helped me recover my phone when I bricked it ON DAY ONE after failed root attempt... (Derp)
Let me know if it helped you
(Leave a thanks if it did )
EDIT : This tool is also useful if you want to get lazy whilst rooting. I use it constantly when flashing diffrent bits and pieces
Click to expand...
Click to collapse
I've tried that, but I am still stuck as that tool is using fastboot as every other tool to flash .img files.
Thank you for the tip though.

Plug phone into computer with USB, then hold down power + volume down until it eventually boots into bootloader. I had the same scenario as you and that's how I got into the bootloader. You can flash either a good TWRP or the stock recovery, either one will work.

[GUIDE] How to Unlock Bootloader and Install TWRP

First, you’ll need ADB and fastboot, which can be downloaded here. To set up ADB, go to Settings/About Phone/Software Info and tap on build number until you get a toast notification saying “You are now a developer!” You will now have a new category in Settings called Developer Options. Go into developer options and enable USB debugging and OEM Unlock. You won't be able to turn it on if your phone is plugged in to your PC. Once you've turned it on, go to your PC, open Terminal or Command Prompt and type “adb devices”. Then plug in your phone and hit enter. You'll get a prompt on your phone to “Allow connection​s to this PC?”. Check Always allow and Allow. Now run “adb devices” again. Your device should now appear in Terminal.
If you have a SD card, download the latest zips from here and here onto your​ SD card. It'll save you a step later on.
Then you'll need to reboot to fastboot by holding down VOL- and plugging in USB while power is off. Alternatively​, you can type “adb reboot bootloader” in Terminal or Command Prompt.
Next, you'll need to unlock the bootloader. Bootloader unlocking​ will factory reset your phone! Once you're in fastboot, run “fastboot oem unlock” in Terminal or Command Prompt. Now the bootloader is unlocked.
Now it's time to flash TWRP, a custom recovery for Android. It's going to be the way you install custom ROMs and add-ons. Download Official TWRP here. Once you've extracted​ the recovery.zip, run this command: “fastboot flash recovery path/to/recovery.img”. Once the file has flashed, disconnect the USB cable and battery. The next step is important! You're going to need to boot into TWRP for the first time. With the phone off, hold down VOL- and press power until the phone vibrates and the LG logo appears. While still holding down VOL-, release and immediately press and hold power. You should now be at a white screen that says “Reset all data and restore to factory settings?” Use the volume and power keys to select yes and yes again. If you've installed​ TWRP successfully​, it won't actually factory reset your phone. Now you should see the TWRP screen. If you don't see the TWRP screen and instead see a floating ring that says “Erasing”, don't worry. Let if complete and try flashing TWRP in fastboot again.
In TWRP, you'll be greeted by a screen that says “Swipe to allow modifications?” Swipe it, then go to the Wipe tab. Go to Wipe, then Format Data, then type yes, then go to the Reboot tab and select Recovery to reboot into TWRP again. If you're prompted to install the TWRP app, don't bother.
Once you've rebooted into TWRP again, it's time to disable encryption​ and root the phone. Download the latest zips here and here. Skip downloading them if you already put them on your SD card earlier. On your PC, push the files to your phone using the command “adb push path/to/file.zip /sdcard/”. You can drag and drop the file into Terminal or Command Prompt to copy file path. Then go to the Install tab in TWRP and select the no-verity-opt-encrypt.zip, tap Add more zips, then add the root zip, then swipe to flash. Let the zips flash, then tap the Reboot System button when it's done. Your phone will take a little longer to boot and might reboot a couple times.
Once you're back in the OS, go through the setup wizard. Set up Magisk. If you stay on stock, you should install an app like Quick Reboot Pro from the Play Store to make it easier to reboot into recovery. Now reboot back into TWRP and go to the Backup tab. If you have a SD card, set it as the backup location. You can enable compression if you want. This will make a full system backup that you can restore from as long as you have TWRP. If the backup takes up too much space, you can put it in Google Drive or your PC later on.
You are now ready to install ROMs!
Thanks to @messi2050

My device will not start boot loader with command "adb reboot bootloader" or with the method of holding volume down and pugging it into the PC, it just restarts and boots like normal. i cannot even get to the stage to use the command "fastboot oem unlock"

I cant get it too boot into TWRP

? Has anyone else have had issues geting into bootloader mode on lg stylo 2 boost mobile.

meg540 said:
? Has anyone else have had issues geting into bootloader mode on lg stylo 2 boost mobile.
Click to expand...
Click to collapse
Please explain more in detail so you can be helped better In what ways? What are you doing to get into bootloader mode? I've never had any issues on my T-Mobile Stylo 2 plus. Are you trying to get into bootloader using buttons manually or through twrp or adb?

SM210 said:
Please explain more in detail so you can be helped better In what ways? What are you doing to get into bootloader mode? I've never had any issues on my T-Mobile Stylo 2 plus. Are you trying to get into bootloader using buttons manually or through twrp or adb?
Click to expand...
Click to collapse
Im trying too put my phone into bootloader mode to unlock bootloader but it keeps restarting phone and wont go into it. Also i have tryed on my computer command promt but phone into bootloader mode it. Restarts phone but not into bootloader mode. Also i have tryed power down and holding power button that doesn't work.

meg540 said:
Im trying too put my phone into bootloader mode to unlock bootloader but it keeps restarting phone and wont go into it. Also i have tryed on my computer command promt but phone into bootloader mode it. Restarts phone but not into bootloader mode. Also i have tryed power down and holding power button that doesn't work.
Click to expand...
Click to collapse
You hold volume DOWN and power then soon as screen comes on and you see LG you let go of the power button and then immediately press power again and you never let off volume DOWN. That doesn't work?
Edit

SM210 said:
You hold volume DOWN and power then soon as screen comes on and you see LG you let go of the power button and then immediately press power again and you never let off volume DOWN. That doesn't work?
Edit
Click to expand...
Click to collapse
Ill try that i think i wasnt doing it correctly i was holding down power button then i let go an i was holding down the down button. Ty for u help ill try it later today.

Hey there, I've got the LG K530F, is there any chance of unlocking it? I looked up the LG developer website and it's not listed in there, filling that form will just lead to a popup regarding that. I thought about downgrading it back to MM (Android 6.0) using the K350F10d_00_02221.kdz firmware package aiming to be able to run fastboot oem unlock, but I'm afraid of getting it bricked. Anyone tried it? I recall doing something like that to unlock the LG Optimus L9, but that one was way older and had much weaker security measurements.

Can't get into Bootloader
Hi i have a LGL82VL and when trying to use adb reboot bootloader it just restarts, And when using Vol Down and Power it just comes to the factory reset page (Hard Reset)
Any ideas on how to get to the bootloader? i checked with fastboot devices while on the hard reset page and got nothing. Any Ideas?

CANNOT enter recovery mode proper

The issue: When booting I get the "bad key" boot text which hangs for about 10 seconds before going to splash.
When doing power button + volume up, the bad key hangs for so long that holding down power button just SHUTS THE PHONE OFF.
I can do power button + volume down to enter bootloader, and then enter recovery mode from there, but when I do that I get NO COMMAND
Ive also tried with adb
adb reboot recovery
same thing NO COMMAND
Everything that I google about NO COMMAND comes back with "oh just do power button + volume up duh" and each time I read that as a solution it makes me a little bit more angry.
https://forum.xda-developers.com/moto-e6/how-to/rooting-e6-surfna-t3965659
Ive been following this guide to root my moto e6 and everything has been fine so far, but im stuck trying to install magisk. Magisk manager has already been installed, and I believe I have installed magisk. But I cannot boot into proper recovery to use it.
About to give up, hopefully someone can help

installed a bootlogo following this guide
https://forum.xda-developers.com/moto-e5/how-to/boot-logo-moto-e5-stock-bad-key-removed-t3869259
to see if that would help. No change. Cant boot into recovery mode proper.

alexsherman4 said:
The issue: When booting I get the "bad key" boot text which hangs for about 10 seconds before going to splash.
When doing power button + volume up, the bad key hangs for so long that holding down power button just SHUTS THE PHONE OFF.
I can do power button + volume down to enter bootloader, and then enter recovery mode from there, but when I do that I get NO COMMAND
Ive also tried with adb
adb reboot recovery
same thing NO COMMAND
Everything that I google about NO COMMAND comes back with "oh just do power button + volume up duh" and each time I read that as a solution it makes me a little bit more angry.
https://forum.xda-developers.com/moto-e6/how-to/rooting-e6-surfna-t3965659
Ive been following this guide to root my moto e6 and everything has been fine so far, but im stuck trying to install magisk. Magisk manager has already been installed, and I believe I have installed magisk. But I cannot boot into proper recovery to use it.
About to give up, hopefully someone can help
Click to expand...
Click to collapse
bad key and/or N/A is just the phone saying it has an unlocked bootloader.
NO COMMAND when entering Recovery, yes, google is right. When you see NO COMMAND, press and HOLD the power button and TAP the volume up key. You should see at the top, Android Recovery and a bunch of options below. If you don't see this, your recovery partition was probably modified/corrupt. Flash the original recovery.img from a stock rom. I don't think there's a working E6 TWRP recovery image yet.

If you still haven't figured this out I have a possible fix. I found that upon first installing the magisk_patched.img from the guide you linked, everything booted up fine and magisk and root were working. I however made the mistake of booting normally...somehow this affects the magisk boot function in the recovery and gives the no command screen. I just fastboot flash recovery magisk_patched.img again and booted straight into recovery and that fixed it again. Just make sure once you have root again to use a program that allows you to boot back into recovery again directly.

fcohen said:
bad key and/or N/A is just the phone saying it has an unlocked bootloader.
NO COMMAND when entering Recovery, yes, google is right. When you see NO COMMAND, press and HOLD the power button and TAP the volume up key. You should see at the top, Android Recovery and a bunch of options below. If you don't see this, your recovery partition was probably modified/corrupt. Flash the original recovery.img from a stock rom. I don't think there's a working E6 TWRP recovery image yet.
Click to expand...
Click to collapse
When I get to the Android Recovery which option do I choose?
I tried "Reboot system now" and Magisk was still not installed

chami_bc said:
When I get to the Android Recovery which option do I choose?
I tried "Reboot system now" and Magisk was still not installed
Click to expand...
Click to collapse
You are not going to install magisk in stock recovery
Sent from my ocean using XDA Labs