Jiayu G3 cannot get fastboot mode - Android Q&A, Help & Troubleshooting

Hello, i've just bought a jiayu G3 phone, but i can't enter fastboot mode, if i issue "adb reboot bootloader" the phone reboots but immediately load the system like a normal power on, anyone had this issue?
I successfully rooted it and installed clockworkmod recovery with mobile uncle tools but i want to have fastboot mode in order to test custom builds.
Thnak you

c.cicali said:
Hello, i've just bought a jiayu G3 phone, but i can't enter fastboot mode, if i issue "adb reboot bootloader" the phone reboots but immediately load the system like a normal power on, anyone had this issue?
I successfully rooted it and installed clockworkmod recovery with mobile uncle tools but i want to have fastboot mode in order to test custom builds.
Thnak you
Click to expand...
Click to collapse
The Orange Hi 4G has the same problem, in that phones the bootloader only shows up when the boot or recovery boot are broken and the device isnt able to start the recovery mode.

Related

[Q] [Moto E][XT1022][5.0.2][recovery mode]

I have the XT1022 Moto E model. I recently upgraded from Kitkat 4.4.4 to Lollipop 5.0.2 using an Indian retail version of the stock ROM (Condor retail version) and the adb sideload method on Ubuntu 14.04. The Lollipop update is working in excellent condition. However, I wanted to try the Paranoid Android ROM and tried to enter into the recovery mode for trying out the adb sideload method. However, what I found was that I cannot enter the recovery mode. I was able to do so for a few times after I installed the Lollipop update, but then I suddenly stopped being able to do so. The method I had been following was Power+Volume Down for 5 sec to enter the bootloader, select the recovery option, and press volume up for 15-20 sec and press and release the power key while holding down the volume up button.
I though that I might have wiped the stock recovery during the upgrade, so I wanted to unlock bootloader and install a TWRP custom recovery. However, I was unable to unlock the bootloader, as I am unable to connect fastboot mode in Ubuntu when the phone is in the bootloader/fastboot mode ($ fastboot devices command in Ubuntu terminal window showed no devices. When phone is on, $ adb devices shows that my phone is connected. Also, USB debugging is on).
Can anyone help me with this issue?
rajiiv00 said:
I have the XT1022 Moto E model. I recently upgraded from Kitkat 4.4.4 to Lollipop 5.0.2 using an Indian retail version of the stock ROM (Condor retail version) and the adb sideload method on Ubuntu 14.04. The Lollipop update is working in excellent condition. However, I wanted to try the Paranoid Android ROM and tried to enter into the recovery mode for trying out the adb sideload method. However, what I found was that I cannot enter the recovery mode. I was able to do so for a few times after I installed the Lollipop update, but then I suddenly stopped being able to do so. The method I had been following was Power+Volume Down for 5 sec to enter the bootloader, select the recovery option, and press volume up for 15-20 sec and press and release the power key while holding down the volume up button.
I though that I might have wiped the stock recovery during the upgrade, so I wanted to unlock bootloader and install a TWRP custom recovery. However, I was unable to unlock the bootloader, as I am unable to connect fastboot mode in Ubuntu when the phone is in the bootloader/fastboot mode ($ fastboot devices command in Ubuntu terminal window showed no devices. When phone is on, $ adb devices shows that my phone is connected. Also, USB debugging is on).
Can anyone help me with this issue?
Click to expand...
Click to collapse
Have you tried running the fastboot commands as root to rule out this being caused by a permission issue?
AWildColin said:
Have you tried running the fastboot commands as root to rule out this being caused by a permission issue?
Click to expand...
Click to collapse
Thanks for that. That was mighty stupid of me not to try that. I tried the sudo command in Ubuntu and it did work. I have root

Bootloader/Fastboot Mode: Cant get there....

Hi,
I am trying to see if I can spring an old Karbonn Titanium s2 back to life by installing a compatinble Cyanogen OS in it if I can find one.
I have ADB and FastBoot installed in my Windows 7 PC.
Now the problem I am facing is I just cant boot this damn thing into Fastboot mode.
So,When I do this
adb reboot bootloader
The phone simply reboots. Literally. Reboots.
On the other hand, commands like
adb reboot recovery
works just fine.
Its just the reboot bootloader command that isnt working, which is halting my endeavor at the very first step because I cant unlock a bootloader that is invisible and so I cant install a custom recovery in it.
Any Help??
Thanks in advance.
P.S: The device runs Android JB and is rooted.

LG G2 Bootloader Mode, Not Booting

Hi everyone,
I've trying to boot my lg d802 with custom rom into "bootloader mode"..
I tried using the adb command: "adb reboot bootloader" but it didn't work...
I also tried to reboot from recovery mode (I use twrp), but it didn't work as well
The phone keeps booting into normal mode (android)
Any ideas?!

Sharp Aquos S2 stucked in Download mode

Hi:
My unlocked bootloader SS2 phone got stucked in Download Mode after successfully installed/flashed AICP ROM
It booted once and when i rebooted to enter recovery got stucked. Tried pushing buttons combos but still stucked in Dmode.
Have no access to fastboot from Windows but can get limited access to fastboot in Debian: can flash several twrp recoveries, can flash
AICP ROM again but can not get fastboot oem commands working.
Can't enter to recovery because phone never turn off.
Tried also to come back to Nougat but can't enter recovery to flash ss2_old_bootloader.
I do not know what to do.
Any help?
Also have this problem... any help?
have u try to connect into computer, use adb, and use this command :
Code:
fastboot reboot
what's the result with that?
No connection.
But i have reinstalled OST Treble ROM and phone now working.
gsausalito said:
Hi:
My unlocked bootloader SS2 phone got stucked in Download Mode after successfully installed/flashed AICP ROM
It booted once and when i rebooted to enter recovery got stucked. Tried pushing buttons combos but still stucked in Dmode.
Have no access to fastboot from Windows but can get limited access to fastboot in Debian: can flash several twrp recoveries, can flash
AICP ROM again but can not get fastboot oem commands working.
Can't enter to recovery because phone never turn off.
Tried also to come back to Nougat but can't enter recovery to flash ss2_old_bootloader.
I do not know what to do.
Any help?
Click to expand...
Click to collapse
I also have problem after flashing to AICP and sometimes phone (after power off) stuck in Download mode.
Just enter:
fastboot --set-active=a reboot
rgr1 said:
I also have problem after flashing to AICP and sometimes phone (after power off) stuck in Download mode.
Just enter:
fastboot --set-active=a reboot
Click to expand...
Click to collapse
I have the same problem. I tried to follow your advice, but fastboot in my PC doesn't recognize the parameter (all I get is fastboot help page).
Regards.
EDIT: reinstalled treble v3.1 via OST and it fixed the download mode issue.
thanks!
hi,
got the same problem, stuck at download mode but phones can`t to pc via usb so I am unable to use fastreboot.
Any other suggestions how to fix it ?
internety1 said:
hi,
got the same problem, stuck at download mode but phones can`t to pc via usb so I am unable to use fastreboot.
Any other suggestions how to fix it ?
Click to expand...
Click to collapse
in my xperience is connect your phone to the PC then open cmd ... make sure in folder of adb and fastboot .exe stored ...
type:
Code:
fastboot continue
longu said:
I have the same problem. I tried to follow your advice, but fastboot in my PC doesn't recognize the parameter (all I get is fastboot help page).
Regards.
EDIT: reinstalled treble v3.1 via OST and it fixed the download mode issue.
Click to expand...
Click to collapse
Maybe use other fastboot.
Sometimes you must enter:
Code:
fastboot --set-active=_a reboot
("_a" instead of "a")
BTW. My Aquos sometimes stuck in download mode after installing AICP.
I fixed this by entering:
Code:
adb shell
bootctl mark-boot-successful
Hello, i have the same exact problem. I tried to use adb program to fix this problem, but my laptop couldn't recognize my device. Any other solutions would be helpful. Thanks for your attention! (I'm a beginner in technology, so please forgive me)

system destroyed and cannot enter to fastboot mode

hi guys, i have a problem let me explain to u what heppened and all stuffs
(my phone is redmi 9)
firstly i decided to install a custom rom and i've unlock the bootloader and i suffered in this step and then i flahsed recovery with pixel experience recovery but when i enter to recovery mode the device just reboot then i flashed recovery with twrp, i try to enter to recovery but system declins and i tried many time and finally i get into twrp, i wiped cach and i wiped all thing in list (i didnt remember but i deselect only sd card and otg maybe the problem was here and im newbie btw) and the wipe process successed, i tried flash rom with adb sideload but proccess failed idk why after that i tried flash recovery with shrp from fastboot but when i enter to fastboot using volum down + power off the fastboot still active for 5secs and exit i tried to boot into this recovery but when u complete the first step (i forget the name) but the output was like this:
[xxxxxxx]: 2.001sec
[booting]: (no input device)
command error
in booting step the fastboot exit and then when i tried many times i did this command: fastboot reboot fastboot
after this the device cant get into recovert mode or fastboot mode (when i try enter to fastboot mode the phone shows redmi logo and close immediaty 1sec or less) (system now is destroyed and i try to boot into os the phone stuck on redmi logo)
there is any way to enter to fastboot mode in this situation? i need help plz and thanks
also sorry for bad english
BESHIZUMOTO said:
hi guys, i have a problem let me explain to u what heppened and all stuffs
(my phone is redmi 9)
firstly i decided to install a custom rom and i've unlock the bootloader and i suffered in this step and then i flahsed recovery with pixel experience recovery but when i enter to recovery mode the device just reboot then i flashed recovery with twrp, i try to enter to recovery but system declins and i tried many time and finally i get into twrp, i wiped cach and i wiped all thing in list (i didnt remember but i deselect only sd card and otg maybe the problem was here and im newbie btw) and the wipe process successed, i tried flash rom with adb sideload but proccess failed idk why after that i tried flash recovery with shrp from fastboot but when i enter to fastboot using volum down + power off the fastboot still active for 5secs and exit i tried to boot into this recovery but when u complete the first step (i forget the name) but the output was like this:
[xxxxxxx]: 2.001sec
[booting]: (no input device)
command error
in booting step the fastboot exit and then when i tried many times i did this command: fastboot reboot fastboot
after this the device cant get into recovert mode or fastboot mode (when i try enter to fastboot mode the phone shows redmi logo and close immediaty 1sec or less) (system now is destroyed and i try to boot into os the phone stuck on redmi logo)
there is any way to enter to fastboot mode in this situation? i need help plz and thanks
also sorry for bad english
Click to expand...
Click to collapse
Flash the device using SP Flash tool if your device has MEDIATEK G80 processor.
mvikrant97 said:
Flash the device using SP Flash tool if your device has MEDIATEK G80 processor.
Click to expand...
Click to collapse
i will try it now ty
mvikrant97 said:
Flash the device using SP Flash tool if your device has MEDIATEK G80 processor.
Click to expand...
Click to collapse
its require boot device in fastboot or no? cuz i cant access to fastboot
BESHIZUMOTO said:
its require boot device in fastboot or no? cuz i cant access to fastboot
Click to expand...
Click to collapse
Redmi 9 brick problem solution.
1.if you are above v11.0.8.0 then go and follow below link... https://forum.xda-developers.com/t/disable-authorization-and-unbrick-your-redmi-9.4228213/ ================================== 2.Else follow it...
forum.xda-developers.com

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