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Fastboot Mode Issue

Dear All,
Please help me regarding fastboot. When I press 3 keys (vol-up, vol-down and power key) while phone is off. I see the black and white screen written boot modes. From there when I select AP Fastbood device is restart with red Motorola logo and end up on home screen.. I have tried several times to turn off the device and repeat this process but no issue still there..
Moreover, if I did not select any options from boot modes than device automatically rebooted after 3 or 4 seconds..
Please help me out.. I want to unlock the boot loader root and install custom ROM..
Currently Model Number is XT925 and device is completely stock.. never rooted before...
thanks and regards,

akkay1 said:
Dear All,
Please help me regarding fastboot. When I press 3 keys (vol-up, vol-down and power key) while phone is off. I see the black and white screen written boot modes. From there when I select AP Fastbood device is restart with red Motorola logo and end up on home screen.. I have tried several times to turn off the device and repeat this process but no issue still there..
Moreover, if I did not select any options from boot modes than device automatically rebooted after 3 or 4 seconds..
Please help me out.. I want to unlock the boot loader root and install custom ROM..
Currently Model Number is XT925 and device is completely stock.. never rooted before...
thanks and regards,
Click to expand...
Click to collapse
After you use the volume down key to highlight "Fastboot", do you then press the volume up key to select it? If you just sit there and wait it will reboot normally. You must press the volume up key after you've highlighted the menu option.

akkay1 said:
Dear All,
Please help me regarding fastboot. When I press 3 keys (vol-up, vol-down and power key) while phone is off. I see the black and white screen written boot modes. From there when I select AP Fastbood device is restart with red Motorola logo and end up on home screen.. I have tried several times to turn off the device and repeat this process but no issue still there..
Moreover, if I did not select any options from boot modes than device automatically rebooted after 3 or 4 seconds..
Please help me out.. I want to unlock the boot loader root and install custom ROM..
Currently Model Number is XT925 and device is completely stock.. never rooted before...
thanks and regards,
Click to expand...
Click to collapse
try this,
-install adb on your pc
-plug in phone when powered up
- open a command prompt in your adb dir
- type in: adb devices then enter. it should show your phone in the prompt. also check your phone, there may be a popup to acknowledge.
- rerun adb devices until it shows your phone properly or you cant proceed
-now type in: adb reboot bootloader
if it works, the phone should reboot to the fastboot screen.
if it doesnt stick in fastboot, im sorry but i dont know what else to tell you to try.

Thank-you for the Response
bweN diorD said:
try this,
-install adb on your pc
-plug in phone when powered up
- open a command prompt in your adb dir
- type in: adb devices then enter. it should show your phone in the prompt. also check your phone, there may be a popup to acknowledge.
- rerun adb devices until it shows your phone properly or you cant proceed
-now type in: adb reboot bootloader
if it works, the phone should reboot to the fastboot screen.
if it doesnt stick in fastboot, im sorry but i dont know what else to tell you to try.
Click to expand...
Click to collapse
Thankyou so much for the reply, i followed your instructions and finally get in fastboot mode and unlocked the boot loader. However, is there any way from which I can go into recovery.. because through hardware way I am unable to go in recovery. Thanks
EDIT: I have tried entering command adb reboot recovery, then phone was rebooted and there was green android on screen with chest open.. thats it... i have waited for few minutes and rebooted the device mannually.

akkay1 said:
Thankyou so much for the reply, i followed your instructions and finally get in fastboot mode and unlocked the boot loader. However, is there any way from which I can go into recovery.. because through hardware way I am unable to go in recovery. Thanks
EDIT: I have tried entering command adb reboot recovery, then phone was rebooted and there was green android on screen with chest open.. thats it... i have waited for few minutes and rebooted the device mannually.
Click to expand...
Click to collapse
That's the entry to stock recovery. You have to push a combination of buttons from there to get into recovery. I forget the button combination, it has been posted many times, try searching or wait for someone else to jump in with the answer.
Sent from my LG-VS980 using XDA Premium 4 mobile app

Not sure where to post this question been reading so many post my eyes are tired......
- XT926 upgraded to kitkat 183.46 last week via flash in RSD from JB 4.1.2
- Root went well DONE (Towel root .apk)
- Unlock went well DONE (Motopocalypse .apk) yes fastboot shows the #3
- Flashed TWRP 2.7.1 DONE (did it using the adb in motopocolypse)
- Backed up my current stock ROM in TWRP seemed to go well the program confirmed the backup was successful...So I thought
- Got confident and wanted to try flashing CM11 (Kitkat version)
- After flashing CM11 my phone got stuck at boot like many others have.... no problem I backed up my stock ROM in TWRP.....So I thought
- Went to restore my stock ROM using TWRP and yup you guessed it like many others the restore failed half way through
Not a big deal starting fresh can be a good thing BUT I really need my old text messages and all I have is a USB backup of the phone (Internal/SDcard) on my PC and of course the TWRP back-up on the SDcard that won’t restore ...... Is there any way to get these messages back to my phone????

wonka144 said:
Not a big deal starting fresh can be a good thing BUT I really need my old text messages and all I have is a USB backup of the phone (Internal/SDcard) on my PC and of course the TWRP back-up on the SDcard that won’t restore ...... Is there any way to get these messages back to my phone????
Click to expand...
Click to collapse
Not sure how to help you with your immediate problem at hand, but going forward, I definitely recommend the sms backup + from the Google Play Store. Nice thing with that app is, you can link it to your gmail account, and all your text messages are backed up to your gmail.

[Q] No Fastboot No Recovery .. Is it dead ?

While i was trying to install the latest official rom to my device (The new Padfone Infinity A86 T004) it is bricked, Now i am facing a very bad (miserable) situation.
When turning on the device it shows me the ASUS logo and in top of the screen a message says : ERROR: Can not boot Invalid boot image!!
And my big problem is that i can't access any of ADB, recovery mode or even fastboot. the phone is undetectable by my PC at all.
I don't know how to force fastboot ... if i can reach the beautiful fastboot mode i will be able to handle the next steps in the fixing journey.
I have red that as long as the device shows something it means that it is not totally bricked .. but how to get out of this situation?
Any suggestions ?

Sorry my englsih is´nt good.
So you can´t broken your phone with OTA Updates
You can delet all files and sysfile and the asus isn´t broken.
you just need patience.
make sure you have the correct driver
turn off your phone,
press vloume up and power, so the phone stay with boot logo, so you are in the fastboot mode.
there you can use my exploit btw the howto downgrade A86, but the downgrade dosent works.
so unzip the newest rom .zip out of asus page....
copy the boot.img and recovery.img in your minimal fast adb folder
so you can:
c:\ADB>fastboot -w ( really wipe all partions and data of your phone!)
c:\ADB\fastboot flash boot boot.img
c:\ADB>fastboot flash recovery recovery.img
copy the complete OTA Update Zip on your phone (internal sd or external is matter)
reboot phone and install the zip out of recovery.
there may be errors come to the first, if that should be the case
then repeat the case up to 3 times
I hope you can read and understand it .
if you need further assistance , please contact me at any time , like even on my homepage lange23.de
BerayekZ said:
While i was trying to install the latest official rom to my device (The new Padfone Infinity A86 T004) it is bricked, Now i am facing a very bad (miserable) situation.
When turning on the device it shows me the ASUS logo and in top of the screen a message says : ERROR: Can not boot Invalid boot image!!
And my big problem is that i can't access any of ADB, recovery mode or even fastboot. the phone is undetectable by my PC at all.
I don't know how to force fastboot ... if i can reach the beautiful fastboot mode i will be able to handle the next steps in the fixing journey.
I have red that as long as the device shows something it means that it is not totally bricked .. but how to get out of this situation?
Any suggestions ?
Click to expand...
Click to collapse

Thank you for your help.
The issue is that the phone now is not detected by the pc at all , i can not access the fast boot ...

Do you really pressed Volume up and Power at the same time, if startet???
If the phone during normal start at the stops bootlogo that's not fastboot!!!
Turn really off an than hold volume up an press Powerbutton, hold it up to boot logo.
then you are really in fastboot mode!
BerayekZ said:
Thank you for your help.
The issue is that the phone now is not detected by the pc at all , i can not access the fast boot ...
Click to expand...
Click to collapse

after turning off
when i press volume up + power button the phone vibrates and the asus logo displayed. then i release power button and keep pressing volume up button => and after 1 second an error appears ERROR: Can not load Invalid boot image!!
when pressing power button + volume down button a menu appears with two options 1.Enter recovery mode and 2.Exit update mode.
when choosing option 1 , the menu disappeared and the asus logo appears without the previous error message.
when choosing option 2 , the the menu disappeared and the asus logo appears and the previous error message.
all these cases the phone didn't go to fastboot mode and never detected by the pc.

when i press volume up + power button the phone vibrates and the asus logo displayed. then i release power button and keep pressing volume up button don´t keep pressing volume up,
fasboot mode only power & up, until the logo. Pressing this two to logo and then left them. the logo sty tuned in display so you re in fastboot
if you pressing up too jump in question menü,
if you pressing at startup power & down jumped directly into question menü, but this menü is wrong for you. you need only fastboot nothing more
BerayekZ said:
after turning off
when i press volume up + power button the phone vibrates and the asus logo displayed. then i release power button and keep pressing volume up button => and after 1 second an error appears ERROR: Can not load Invalid boot image!!
when pressing power button + volume down button a menu appears with two options 1.Enter recovery mode and 2.Exit update mode.
when choosing option 1 , the menu disappeared and the asus logo appears without the previous error message.
when choosing option 2 , the the menu disappeared and the asus logo appears and the previous error message.
all these cases the phone didn't go to fastboot mode and never detected by the pc.
Click to expand...
Click to collapse

keep pressing on volume up button is not jumping in question menü, but shows logo + error message (can not load invalid boot image)
also pressing them to logo then releasing also shows logo + the error message.
i am also uploading a video to youtube to verify..

https://youtu.be/uw4Esyppq_c

and without recovery its right?
And with error message and logo your pc find nothing new unkown devices?
CMCC Composite ADB Interface?
?
BerayekZ said:
https://youtu.be/uw4Esyppq_c
Click to expand...
Click to collapse

Yes, no recovery
And yes PC does not find any new devices

I can not understand it...
I once the boot.img deleted in the phone and also get such error message .
but my systems find an Android device and i can use the fastboot

Any way , a good news that the phone was only few days out of its package and i managed to return it back to the seller and will send to me a new one.
But i am really disappointed with ASUS not to make any unlock tool for the new padfone infinity.
Once, i believed that as long as there is no physical damage in the phone, there will be always a way around to fix it by fastboot. but it discovered that it is not correct and the fast boot itself can be damaged..
Any way thank you so much the only man helped me here sinus23.

I got this problem too
Me too
I got this problem

guys you got to do this , i am having yureka plus5510a no fastboot no recovery
bros no recovery no fastboot boot loop tried all combination not charging nothing what you think you guys are genius give me some let me tell you the whole thing how i ended here .. its all started with the king root(worst decision ) i wanted to flash twrp in my yu yureka plus 5510a no idead what " A" stands for then i used flashify from playstore and downloaded the twrp by the official twrp and flashed it with the flashify and boom boot stuck with no recovery some how removing battery and connecting the phone goes to the charging disp from where i did enable the fast boot but cmd was not able to identify adb devices nor the flashboot commands were working so i did same with win 10 powershell but nothing no devices , so i decided to use a method of ygdp , much hopes with this used ***** 5.1.153.00.P0.160604.8675_I02.def.CPB ******* dont know where the log file is but it was showing old bootloader error downloading and error and error and terminated at 2 % , then this one of your thread by unziping the official files and clicking on flash-all.bat file which he provided img(1) "some trials your phone will be all right " i tried with some "waiting devices error " message but then it just started something happened oem unlock blah_blah and then successful , tried to boot again but this time phone was automatically jumping into fastboot mode , then i finally tried one last time in that power shell thing by typing using cmd and applied fastboot code , even no devices was showing in powershell ,, but then i used some different code something like "fastboot ix902 recovery " and i was able to install a real old twrp recovery.. phone was showing the cyanogen loading ....but later after 1 hour i felt its stuck = + = but luckily recovery was working but but dont know why the buttons setup used to go in fastboot mode was now taking me in recovery,, and fastboot was no longer acessable , i was fine with it so i downloaded latest recovery from your respected thread file named as " twrp-3.0.2-0-20160604-UNOFFICIAL-tomato.img " i wanted to install nougat aosp so i thought its a nice idea to update the recovery first i. so i did the normal recovery update from the recovery it self , and now i guess that recovery was so old , the new one was kinda mindblower for the older one and booom no recovery , no fastboot , tried all the combination and came up with this one volume+ vol- and power shown img (2) same as boot logo but a small "official" tag
pls help i know this post dont suits your professional level , right now i havent slept from kinda like three days cause of exams and this sarcasm of being in trouble.. like my every devices is rooted o in onyx m in tab 2 , it frustating pls help ........i will edit this and make it more polite but if you are one who can solve this .. i am ready to donate man. cause u deserve it , it will gonna be learning experience with you i will be totally into the reply and pls dont scream for drivers i did installed coolpad driver adb drivers everything required i feel yureka is a real fake company their parts isnt distinguishable i did al the steps nicely and cleanly except the (kingroot ) and pls dont brag about the old threads , they didnt helped me much.. and probably why my phone is kinda dead

Rooting Help - Virgin Mobile Galaxy J3 - Volume up button unusable :(

Heya peoples, I have a problem and am hoping for some help in a work around.
I am trying to root my J3 but my volume up button does not work. I have adb installed, and the correct drivers for my phone. I can use adb command to reboot to the bootloader and it brings me to the Odin "downloading" screen. I can then use the program to install TWRP so I can root. Everything goes fine up until this point. After TWRP is installed there is a single massive problem I am hoping there is a work around for. My volume up button does not work. I can only reboot to recover using adb once the phone boots up, and I read that if you let that happen it overwrites TWRP with the stock recovery (which is what happens when I do this). I read that you have to reboot directly from the downloading screen into recovery using Vol up and home and power. But I can't do that since my Vol up doesn't work. When I am at the download screen after installing TWRP none of the adb commands work so I can't reboot directly to recovery to access TWRP the first time. I hope this all makes since, and I hope someone has some advice because as far as I can tell I can't continue passed this point without a working volume up button.
A little more info in case it matters. When using adb command prompt I have to type ".\adb" instead of "adb" as the tutorials say. When I do ".\adb devices" my device shows up as connected. After rebooting to the bootloader using adb, typing ".\fastboot devices" shows nothing is attached, and any command I try to put in results in "waiting on devices". Checking the device management at this point does not show any unknown usb devices (one guide I read said if fastboot wasn't recognizing to check to update drivers if something was showing as unknown usb".
Basically hoping there is some way of booting directly to recovery from bootloader without having to use the vol up key combination so I can access TWRP for the first time. Any help at all is appreciated. I realize having a working volume button would take all the headache out of this but unfortunately fixing it is not an option at the moment.
Edit: I have also unlocked the bootloader using the Crom Services app from samsung, and have developer options and usb debugging enable.

Question: If I use an app to remap the buttons would that work? Wont be around a computer until tonight. Does remapping the buttons affect it at the level of being in bootloader (because if so I could just switch the up and down volume, use adb to reboot to bootloader then power/home/and remapped volume to reboot to recovery). But I feel like it wouldn't work if the app is not actually changig it but intercepting the button press and then changing it. I dunno.

CopaseticDream said:
Question: If I use an app to remap the buttons would that work? Wont be around a computer until tonight. Does remapping the buttons affect it at the level of being in bootloader (because if so I could just switch the up and down volume, use adb to reboot to bootloader then power/home/and remapped volume to reboot to recovery). But I feel like it wouldn't work if the app is not actually changig it but intercepting the button press and then changing it. I dunno.
Click to expand...
Click to collapse
Can this device even be rooted? Doesn't virgin lock their devices?
In any case if you flash twrp to the boot partition (rename it to boot.img) it'll boot directly to twrp then just use twrp to flash to the recovery partition.
Reflash the stock boot.img back to the boot partition.

Samsung Xcover6 unlock bootloader (SM-G736B) before rooting

Wanting to root the device via magisk, I tried first to unlock the bootloader of my phone but apparently failed.
I started by activating the developer mode, set oem unlocking developer option in the settings then tried adb reboot bootloader : no success, the phone simply rebooted. A fastboot oem unlock just hung out waiting for a device.
I can go into download mode or recovery mode if that may help...
Any idea how to unlock this bootloader ? How can i check it is effectively unlocked ?
Thanks in advance for any help

It's well known that SAMSUNG mobiles don't have the Fastboot feature: there it's the Download mode.
FYI:
Power off your device. Press Volume Up + Volume Down and plug in your device to a PC to boot into download mode
When you enter download mode, Long press Volume Up button to unlock the bootloader.

ok well, let's forget about fastboot command then.
I'll answer myself on the original question, to unlock the bootloader:
switch off the phone
press volume up and volume down key
plugin a usb cable
choose "device unlock" with a long press volume up
after released the key up, choose "unlock" with volume up again
Now I'm looking to enter the download mode which I can't reach anymore. Any idea xXx yYy ?

Answer myself again
Apply the 3 first steps of my previous answer, you'll be in the same unlock screen as before but the first option will be "Continue". Choose it with volume up and you will end up in download mode !
Now I'll try rooting with magisk...

Rooting with magisk 25.2 done by a classical patching of AP from november release: AP_G736BXXU1BVK2_G736BXXU1BVK2_MQB58744363_REV00

It appears that this is the only thread on the entire forum for this phone?
Having just bought one for the removable battery and the dual SIM, I discovered that samsung in their infinite wisdom disabled the multiple users feature in their oneUI ROM, which really sucks because that was part of the reason I wanted the phone, to segregate certain apps into their own user account.
This all made me realize Root + custom ROM is probably the only way I will ever get that basic functionality returned.
So here I see that rooting is doable, but there appears to be zero results for un-samsung'd ROMs.

Which market is G736B? I was looking at ordering but I am in the US and the Samsung site is giving me the SM-G736UZKEXAA. Would the classical patching work on that?

The G736B model is sparsely distributed in EU, Asia, Africa and Oceania (see here). Your G736W US model is also based on Snapdragon 778G, it is probably the same phone with a few subtleties concerning 5G support (if any, can't find out) and software bloatware. I'd be surprised the above patching doesn't work but ... it's only a guess !

geekall said:
Wanting to root the device via magisk, I tried first to unlock the bootloader of my phone but apparently failed.
I started by activating the developer mode, set oem unlocking developer option in the settings then tried adb reboot bootloader : no success, the phone simply rebooted. A fastboot oem unlock just hung out waiting for a device.
I can go into download mode or recovery mode if that may help...
Any idea how to unlock this bootloader ? How can i check it is effectively unlocked ?
Thanks in advance for any help
Click to expand...
Click to collapse
you da real mvp bro

Not able to power off phone no matter what

Hi all!
Long story short, basically my OnePlus Nord gen 1 is bricked (no recovery, no ROM). In the current state all it is able to do is boot into the bootloader. The bootloader gives several 'options' such as "boot to recovery", and more importantly, "power off". But no matter what option I choose, the phone ends up rebooting back into the bootloader.
I've tried to follow guides on XDA instructing how to unbrick the device, to no avail. The main guide I'm trying to follow is the MSMdownloadTool guide, but that requires me to power off the device to enter EDL mode (which it isn't doing).
The device seems to be stuck in fast boot mode, but isn't using fastbootd so I can't make changes to critical partitions. Since it is stuck in fastboot mode, adb commands don't work. I've tried reflashing the recovery, but that didn't work. I've tried clearing cache but there I'm running into 'cannot generate userdata' (fastboot erase cache spat out "failed; check device logs").
As for hardware buttons, using volume down + volume up or even volume down+power does nothing, volume up + power button or holding all 3 just restarts the bootloader, and holding just the power button does nothing except for repeatedly select "start"(causing it to reboot back into bootloader).
I feel if I can just get it into EDL mode somehow, everything else will fall into place. Any help at all will be much appreciated

zeuses23 said:
Hi all!
Long story short, basically my OnePlus Nord gen 1 is bricked (no recovery, no ROM). In the current state all it is able to do is boot into the bootloader. The bootloader gives several 'options' such as "boot to recovery", and more importantly, "power off". But no matter what option I choose, the phone ends up rebooting back into the bootloader.
I've tried to follow guides on XDA instructing how to unbrick the device, to no avail. The main guide I'm trying to follow is the MSMdownloadTool guide, but that requires me to power off the device to enter EDL mode (which it isn't doing).
The device seems to be stuck in fast boot mode, but isn't using fastbootd so I can't make changes to critical partitions. Since it is stuck in fastboot mode, adb commands don't work. I've tried reflashing the recovery, but that didn't work. I've tried clearing cache but there I'm running into 'cannot generate userdata' (fastboot erase cache spat out "failed; check device logs").
As for hardware buttons, using volume down + volume up or even volume down+power does nothing, volume up + power button or holding all 3 just restarts the bootloader, and holding just the power button does nothing except for repeatedly select "start"(causing it to reboot back into bootloader).
I feel if I can just get it into EDL mode somehow, everything else will fall into place. Any help at all will be much appreciated
Click to expand...
Click to collapse
You might be able to enter EDL mode by opening the device and using a jumper to touch certain contact points on the board and force it into EDL mode. I don't know your hardware so I don't know which points to tell you to use the jumper on, you'll have to do some research to figure that out based on the specific device you have.

zeuses23 said:
The device seems to be stuck in fastboot mode, but isn't using fastbootd so I can't make changes to critical partitions.
Click to expand...
Click to collapse
unrelated. you can flash super.img from fastboot. flashing critical partitions maybe needs unlocking.

Hello if this can help my device was dead , not even fastboot or recovery was working and was bootlooping. What i did is installing MTK authentication bypass ( i dont know if your phone is mtk cpu ) , then i instaled libUsb driver that came packed with that tool.
Then you open libusb driver installer, and when you keep pressed power + vol down to enter Brom mode, it should detect a com port that disappear in few seconds, what u need to do is click install driver as soon you see that com port appear.
Now you open the bypass tool with phone disconnected, click on bypass, and then connect the cable, now enter Brom mode with power + vol down, and the tool will say Success.
Now your phone is ready to use with any flash tool ,like sptools.
Hope this helps.

Droidriven said:
You might be able to enter EDL mode by opening the device and using a jumper to touch certain contact points on the board and force it into EDL mode. I don't know your hardware so I don't know which points to tell you to use the jumper on, you'll have to do some research to figure that out based on the specific device you have.
Click to expand...
Click to collapse
Hey, thanks for the suggestion! But i would very much prefer not to open up my device. I've also heard that there is an EDL cable, but I don't know if that'll work either. Lets see
aIecxs:
unrelated. you can flash super.img from fastboot. flashing critical partitions maybe needs unlocking.
Click to expand...
Click to collapse
Thanks for your reply! A silly question, but what does super.img do? I tried flashing the critical partitions after running "fastboot oem unlock_critical", but that still gave me the error.
innergat:
Hello if this can help my device was dead , not even fastboot or recovery was working and was bootlooping. What i did is installing MTK authentication bypass ( i dont know if your phone is mtk cpu ) , then i instaled libUsb driver that came packed with that tool.
Then you open libusb driver installer, and when you keep pressed power + vol down to enter Brom mode, it should detect a com port that disappear in few seconds, what u need to do is click install driver as soon you see that com port appear.
Now you open the bypass tool with phone disconnected, click on bypass, and then connect the cable, now enter Brom mode with power + vol down, and the tool will say Success.
Now your phone is ready to use with any flash tool ,like sptools.
Hope this helps.
Click to expand...
Click to collapse
Hey innergat, unfortunately I believe my phone has a qualcomm chipset, so this probably won't work

Dynamic partitions are logical partitions hosted in physical super partition. logical partitions can only be accessed from fastbootd, physical partitions from fastboot.

To enter EDL mode try selecting power off and then immediately hold volume up + volume down.