Hi folks,
I have been using Acer A510 for almost 1 year now, and upgraded 7 months ago to the latest JB OTA. I haven't ever rooted it.
Since 2 days, it can't boot suddenly, stuck with the following error message:
Booting failed
Bootloader vJB-d0ca683: Starting Fastboot USB download protocol
Click to expand...
Click to collapse
After a bit of Googling, I tried to unlock the bootloader, as a way to recover the tablet. But that keeps failing as well:
[ [email protected]: /tmp ]# fastboot oem unlock
...
Click to expand...
Click to collapse
At this step, I can see the unlock icon and played with Vol+ and Vol- to quickly select the "Unlock" option, and this is what I get on the tablet:
Unlocking...
Bootloader vJB-d0ca683: Starting Fastboot USB download protocol
Click to expand...
Click to collapse
And on the computer (kind of error messages that are of no help):
...
FAILED (remote: (Unknown error code))
Click to expand...
Click to collapse
So it appears the bootloader can not be unlocked, and I can not even enter the recovery.
I've read somewhere that it may be possible to recover in APX mode.
So is there any way to recover it (either through the bootloader or through APX mode)?
Thanks for your help!
Booting failed.......Bootloader VJB-d0ca683
Hi.
I have been using Acer A510 for almost 1 year now, I haven't ever rooted it.
Today, it can't boot suddenly, stuck with the following error message:
Quote:
Booting failed
Bootloader vJB-d0ca683: Starting Fastboot USB download protocol
Please help me.....
h4ck3r3l said:
Hi folks,
I have been using Acer A510 for almost 1 year now, and upgraded 7 months ago to the latest JB OTA. I haven't ever rooted it.
Since 2 days, it can't boot suddenly, stuck with the following error message:
After a bit of Googling, I tried to unlock the bootloader, as a way to recover the tablet. But that keeps failing as well:
At this step, I can see the unlock icon and played with Vol+ and Vol- to quickly select the "Unlock" option, and this is what I get on the tablet:
And on the computer (kind of error messages that are of no help):
So it appears the bootloader can not be unlocked, and I can not even enter the recovery.
I've read somewhere that it may be possible to recover in APX mode.
So is there any way to recover it (either through the bootloader or through APX mode)?
Thanks for your help!
Click to expand...
Click to collapse
I am having the same problem with my acer A700,I tried anything I could and I still did not find any solution,help would be very appriciated.
Same situation
h4ck3r3l said:
Hi folks,
I have been using Acer A510 for almost 1 year now, and upgraded 7 months ago to the latest JB OTA. I haven't ever rooted it.
Since 2 days, it can't boot suddenly, stuck with the following error message:
After a bit of Googling, I tried to unlock the bootloader, as a way to recover the tablet. But that keeps failing as well:
At this step, I can see the unlock icon and played with Vol+ and Vol- to quickly select the "Unlock" option, and this is what I get on the tablet:
And on the computer (kind of error messages that are of no help):
So it appears the bootloader can not be unlocked, and I can not even enter the recovery.
I've read somewhere that it may be possible to recover in APX mode.
So is there any way to recover it (either through the bootloader or through APX mode)?
Thanks for your help!
Click to expand...
Click to collapse
+1
I get exactly the same problem this WE :crying:
I never root/flash/play with recovery or anything else.
Tablet shutdown by itself, then after restart I get trouble to boot :
First the Android said it was unable to start due to encryption : "encryption unsuccessful > need factory reset". Even if I NEVER activate encryption !
I try couple of reboot without suceess, then now it stop on Acer logo and go to fastboot mode at each startup.
Then I have exactly same trouble : impossible to unlock bootloader using fastboot.
No way to flash something.
Need help !
If fastboot is available, you can try to boot CWM Recovery or TWRP recovery
fastboot -i 0x0502 boot C:\....\cwm-recovery.img
From there you can try a factory reset
Shreps said:
If fastboot is available, you can try to boot CWM Recovery or TWRP recovery
fastboot -i 0x0502 boot C:\....\cwm-recovery.img
From there you can try a factory reset
Click to expand...
Click to collapse
It doesn't work as the bootloader is still locked !
Code:
FAILED (remote: bootloader is locked.)
And it's impossible to unlock bootloader as describe in the post.
Any other idea ?
You can try to download the full ROM from acer Web Site (GEN1 or CUS1 depending on what you had before)
rename it to update.zip and put it on your sdcard
Reboot your tablet in recovery if you can to flash it, or in bootloader (don't remember if the Acer bootloader can flash an update.zip)
katull said:
Hi.
I have been using Acer A510 for almost 1 year now, I haven't ever rooted it.
Today, it can't boot suddenly, stuck with the following error message:
Quote:
Booting failed
Bootloader vJB-d0ca683: Starting Fastboot USB download protocol
Please help me.....
Click to expand...
Click to collapse
Its 2015 now but i will post this anyway..
Try this
1st, Boot into recovery:
- Press [vol-] + [power]
- Once the tablet vibrated, let go [power] and keep [vol-].
- Now the tablet vibrates a second time, let go [vol-] and press [vol+] quick
- Once the text that appears on the screen ("loading recovery kernel image"), let go [vol+].
2nd, choose "Wipe data cache & factory reset" via volume rocker and power button to select it.
3rd, choose "reboot"
I solved mine using that steps, hopefully it will solve yours.
Thank you very much!!! It worked for me!
Zewz said:
Its 2015 now but i will post this anyway..
Try this
1st, Boot into recovery:
- Press [vol-] + [power]
- Once the tablet vibrated, let go [power] and keep [vol-].
- Now the tablet vibrates a second time, let go [vol-] and press [vol+] quick
- Once the text that appears on the screen ("loading recovery kernel image"), let go [vol+].
2nd, choose "Wipe data cache & factory reset" via volume rocker and power button to select it.
3rd, choose "reboot"
I solved mine using that steps, hopefully it will solve yours.
Click to expand...
Click to collapse
So I have tried the above listed technique and it brings up the clockwork mod screen but does not go past it. Any more suggestions?
Thanks.
------------------------------------------------------------------------------------
- Press "vol-" + "power"
- Once the tablet vibrated, let go "power" and keep "vol-".
- Now the tablet vibrates a second time, let go "vol-" and press "vol+" quick
- Once the text that appears on the screen ("loading recovery kernel image"), let go "vol+".
2nd, choose "Wipe data cache & factory reset" via volume rocker and power button to select it.
3rd, choose "reboot"
------------------------------------------------------------------------------------
After trying many other approaches this one worked for me! Thank you very much!
Hello everyone, it may be late for you but i found a solution for a bricked A510 :
for my part i only had access to bootloader unlock and fastboot, but it didn't communicate with my laptop
So i found a software called DriverHub and launched it with my A510 connected to my laptop
It found the right driver for it (was not the of from Acer or any universal ADB driver) and i could use the fastboot mode to unlock OEM and flash TWRP, and now i have Cyanogen running on my tab who came back from dead
Here's a link to the software : www drvhub net
Have a nice day
Hi,
After doing a factory reset, I disabled root in SuperSU. Upon restarting, the device refuses to boot and is stuck on booting animation.
I was trying to get into fastboot but had no success yet.
Can anyone help me with this?
Regards,
Are you trying to get into the boot loader ? OR the recovery? There is no such thing as getting into fast boot directly. You boot into the boot loader then typically can launch the fast boot application from your PC from there.
Root has nothing to do with the boot loader.
Make sure your holding down the power down button then power on. This will take you into the boot loader. From there you can select go into Fast Boot Protocol and should trigger the driver in your PC to connect the device (if it has not already - typically its already established). If in your device manager (PC) there is an exclamation then that means your driver for fastboot is hosed. Here are some instructions on how to fix them (scroll down):
http://forum.xda-developers.com/shi...k-recovery-images-ota-library-guides-t2988881
Ribice said:
Hi,
After doing a factory reset, I disabled root in SuperSU. Upon restarting, the device refuses to boot and is stuck on booting animation.
I was trying to get into fastboot but had no success yet.
Can anyone help me with this?
Regards,
Click to expand...
Click to collapse
Hold down the POWER button to power off the device, then hold VOLUME DOWN and tap POWER (don't hold it). The device should boot into the bootloader, at which point you can use VOLUME and POWER to select and boot into fastboot mode.
Thank you very much.
Hi, it all started when I tried to install another ROM for my moto g xt1033. I accidentally deleted OS and storage.
Now it is struck at Warning bootloader unlocked screen. I can't even go into recovery mode.
I guess I hard bricked it.
Please help.
Thanks.
Have you tried to reboot into fastboot mode? Hold power button 5 seconds, after it reboots hold vol- key for some time and release it. If You booted into Flashboot mode you can install recovery or restore full system.
kuba_160 said:
Have you tried to reboot into fastboot mode? Hold power button 5 seconds, after it reboots hold vol- key for some time and release it. If You booted into Flashboot mode you can install recovery or restore full system.
Click to expand...
Click to collapse
Yes I tried. It reboots with a small vibration to bootloader unlocked screen again.
It's not detected by fastboot when you connect it?
kuba_160 said:
It's not detected by fastboot when you connect it?
Click to expand...
Click to collapse
No.. I tried... It just stops at waiting for devices..
*accidently put this in the wrong thread, if a mod could move it. thanks*
So I wanted to get rid of the chinese recovery that was on my lenova tablet and messed up along the way.
I first enabled debbuging USB on my tablet and used adb on my pc to boot my tablet into fastboot (I am unable to enter fastboot any other way).
I ran this line: "fastboot oem unlock" and then "fastboot flash recovery twrp.zip".
The TWRP version i flashed onto the recovery was a wrong version causing my tablet to go into a bootloop on restart.
I get no response from vol up+power, vol down + power, vol up+vol down+power.
I had to let my tablet battery run out since the back battery is unremovable.
The tablet shows the splash screen when it boots and restarts after about 5 seconds.
I have no idea on what to do so i turn for help here
I have tried to flash back to stock firmware and return the phone to its original locked bootloader state. I have followed this tutorial here: https://forum.xda-developers.com/showpost.php?p=70326674&postcount=23
The phone is now unable to start, I cannot go into fastboot mode, I cannot go into erecovery mode. Even if I press all three buttons (Vol + Vol - Start) it simply does nothing but reboot the phone into the blue boot screen. I'm basically stuck there. Is there anything, anything I can do?
What is your model?
venugopalu007 said:
What is your model?
Click to expand...
Click to collapse
FRD-L04