Hard Reset Won't Work On My Acer A100 - Acer Iconia Tab A100

I have tried a hard reset with the volume up button + power button until vibrates then switching screen lock on and off. I see the Erasing user data...Erasing cache... come up then I let go and all it does is gives me the acer logo and proceeds to bootup like normal. I have tried about 100 times lol
I am just trying to figure out how to reset the password on the device I purchased it and it was locked.
I have tried the update.zip thing which didn't work (see below)
Erasing Cache before SD update
SD Update cmd: recovery
--update-package=SDCARD: update.zip
Booting recovery kernel image
Recovery verified failed ...
The bootloader is: Bootloader v0.03.13-ICS: Starting fastboot USB download protocol
I am not sure if the bootloader is locked or not and I don't know if the tablet is rooted how would I check?
Thanks.

craig105 said:
I have tried a hard reset with the volume up button + power button until vibrates then switching screen lock on and off. I see the Erasing user data...Erasing cache... come up then I let go and all it does is gives me the acer logo and proceeds to bootup like normal. I have tried about 100 times lol
I am just trying to figure out how to reset the password on the device I purchased it and it was locked.
I have tried the update.zip thing which didn't work (see below)
Erasing Cache before SD update
SD Update cmd: recovery
--update-package=SDCARD: update.zip
Booting recovery kernel image
Recovery verified failed ...
The bootloader is: Bootloader v0.03.13-ICS: Starting fastboot USB download protocol
I am not sure if the bootloader is locked or not and I don't know if the tablet is rooted how would I check?
Thanks.
Click to expand...
Click to collapse
Sounds like someone relocked the boot loader with a custom recovery installed. It'll say unlocked if it is.
You could let it boot android and see if you can still adb in and get it unlocked again, if its failing to boot android and recovery you bought a tablet someone bricked.
Tapatalked from my GNex - JBSourcery 4.5.6

pio_masaki said:
Sounds like someone relocked the boot loader with a custom recovery installed. It'll say unlocked if it is.
You could let it boot android and see if you can still adb in and get it unlocked again, if its failing to boot android and recovery you bought a tablet someone bricked.
Tapatalked from my GNex - JBSourcery 4.5.6
Click to expand...
Click to collapse
Yeah I think it's bricked luckily the guy at the pawn shop said I could take it back within 30 days since I purchased it with the unknown password on it.
I managed to get a 32gb Nexus 7 from craigslist for $170 today so happy with that.
Thanks!!

craig105 said:
I have tried a hard reset with the volume up button + power button until vibrates then switching screen lock on and off. I see the Erasing user data...Erasing cache... come up then I let go and all it does is gives me the acer logo and proceeds to bootup like normal. I have tried about 100 times lol
I am just trying to figure out how to reset the password on the device I purchased it and it was locked.
I have tried the update.zip thing which didn't work (see below)
Erasing Cache before SD update
SD Update cmd: recovery
--update-package=SDCARD: update.zip
Booting recovery kernel image
Recovery verified failed ...
The bootloader is: Bootloader v0.03.13-ICS: Starting fastboot USB download protocol
I am not sure if the bootloader is locked or not and I don't know if the tablet is rooted how would I check?
Thanks.
Click to expand...
Click to collapse
did you managet to unlock your tablet?
I have the same problem with a Acer Iconia A100 wich has user code...Tryed to hard reset it,I can get into recovery menu, but once the recovery menu appears the device won't take the wipe command.
I can scroll with vol buttons through comands:
-reboot system now,
-apply update from external storage
-wipe data/ factory reset
-wipe chache partition
-apply update from chache
it's just like I am not pressing the confirm button,but all butons are ok
any one has a fix for this problem ???????????

Same issue
dragosgsm said:
did you managet to unlock your tablet?
I have the same problem with a Acer Iconia A100 wich has user code...Tryed to hard reset it,I can get into recovery menu, but once the recovery menu appears the device won't take the wipe command.
I can scroll with vol buttons through comands:
-reboot system now,
-apply update from external storage
-wipe data/ factory reset
-wipe chache partition
-apply update from chache
it's just like I am not pressing the confirm button,but all butons are ok
any one has a fix for this problem ???????????
Click to expand...
Click to collapse
I'm having the exact same issue. I'll let you know what I figure out. I've had mine rooted previously, but have since done a stock ICS update, which removed root. I let the kid play with it for a year and now it's in the exact state you describe. I'm hoping to get it going so I don't need to buy him another tablet!

did you fix this?? im having this issue

Related

problem after s-off

hi , i used thi guide http://forum.xda-developers.com/showthread.php?t=928160 for use the s-off in my desire z , this guide is good now the device is s-off but when i turn on the phone remains blocked in bootscreen htc... I throw the phone or can I save it? pls help me thanks
pls help meee
Can you boot to bootloader? With the phone off, hold vol-down while pressing power on. If you see a menu screen show up, navigate to Recovery. Tell us how far you can go.
yes work bootloader and recovery but goes wrong the recovery some problem whit command but in the option of recovery are wipe cache wipe data (already tested) and i try hard reset but nothig however thank you for your reply and scuse me for my english
Rosemberg91 said:
yes work bootloader and recovery but goes wrong the recovery some problem whit command but in the option of recovery are wipe cache wipe data (already tested) and i try hard reset but nothig however thank you for your reply and scuse me for my english
Click to expand...
Click to collapse
So you wiped, then installed a rom zip, then tried reboot but it gets stuck at the white HTC screen? Do you see any error messages in the recovery menu?
It's possible your emmc chip went bad. Follow the steps here that start with "To be sure that you really are effected by the emmc issue..."
i just try hard reset , wipe cache, data but nothing... when i enter in recovery appears a error message : E: can't open /cache/recovery/command ...
I would try to put the original rom whit adb but in the cmd the device appears connect but offline ...
Sounds like another busted emmc chip story that's it when I get my replacement I think I'm gonna be too scared to root it
Sent from my HTC Vision using XDA Premium App

Can't decrypt Galaxy Nexus after OTA

Just applied the 4.0.2 OTA update to my GSM Galaxy Nexus and after the reboot, even though i type in the correct password, my phone wont decrypt.
I read on android forums people with the 4.0.3 OTA having the same problems.
How can i reset my phone? How does Odin work? Somehow i am stuck at the screen with the android and his open chest
ok i got odin workin, needed to install the android sdk, wiping my phone now
Please note: YOU WILL LOSE ALL DATA
everything seems ok, i got into odin mode like this:
-connect your GN with usb to your computer
-start with power + volume down
-use volume up / down to select recovery mode
-confirm by pressing power
-you will see an android with a triangle
-press power and volume
-select factory reset
-confirm with power
-reboot
this worked for me only after i installed the android sdk, before that somehow i was stuck at the android with his chest open and couldnt select anything because somehow my device wasnt recognized
hope this helps
This also caught me out. Not happy.
Method I used (posted on OTA thread) worked without installing SDK:
Power off
Hold Volume + , volume - and power
You should get a green android image with the body opened with "Start" on the screen
Press Down till you get to recovery mode
Press power
Phone will reboot
You will then get same image of android (smaller) with red warning triangle
Wait a minute or two and then press volume + and power (not sure exactly what I did for this maybe it's just waiting)
Use volume down to select wipe data/factory reset and hit power
Select Yes - delete all user data and hit power
Once done select reboot system now and hit power
You are now back to zero and can start again.
Hi I have roote, and installed cwm, I the applied the encryption proces, now I want to flash a ROM (revert to stock) thru cwm, it says can't mount SD card. I try do a factory reset through cwm but also says can't mount....
Any tips on how to remove the encryption?
tc4101 said:
Hi I have roote, and installed cwm, I the applied the encryption proces, now I want to flash a ROM (revert to stock) thru cwm, it says can't mount SD card. I try do a factory reset through cwm but also says can't mount....
Any tips on how to remove the encryption?
Click to expand...
Click to collapse
Have you tried using fastboot to wipe userdata and system and then to flash the stock image?
andrewNY said:
Have you tried using fastboot to wipe userdata and system and then to flash the stock image?
Click to expand...
Click to collapse
how do I do that? is that thru cwm?
tc4101 said:
how do I do that? is that thru cwm?
Click to expand...
Click to collapse
The only way to decrypt an encrypted phone is using fastboot. Fastboot is a developer tool that runs on your computer. You need to download the full Google factory image or a full rom, and flash all of the files to your phone using fastboot.
CWM and other recovery software will not be able to factory reset the device.
Sienna Hanon said:
The only way to decrypt an encrypted phone is using fastboot. Fastboot is a developer tool that runs on your computer. You need to download the full Google factory image or a full rom, and flash all of the files to your phone using fastboot.
CWM and other recovery software will not be able to factory reset the device.
Click to expand...
Click to collapse
can u give us a link on how to use "fastboot" ? every tutorial i seen seems to use CWM....
tc4101 said:
can u give us a link on how to use "fastboot" ? every tutorial i seen seems to use CWM....
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1626895
Sienna Hanon said:
[snip]
The only way to decrypt an encrypted phone is using fastboot.
Click to expand...
Click to collapse
This is not entirely true. You should be able to use TWRP 2.2.0. As well, have a look through this thread.
andrewNY said:
Have you tried using fastboot to wipe userdata and system and then to flash the stock image?
Click to expand...
Click to collapse
What is the command you have to type in prompt to do this?
I am also having trouble decrypting my phone. Factory reset it a couple of times and it is still encrypted.

[Q] Phone soft bricked? Unable to used ADB or Memory Card

Hello everyone,
I got my AT&T HTC M9 yesterday with 1.32.502.9. I unlocked the bootloader and installed TWRP successfully. I tried Installing Android Revolution 4.1 and didn't noticed the installation failed. When I restarted the phone it got stuck on the HTC logo. Someone after messing with the phone I ended up loosing TWRP and I'm back to the stock recovery with only these options:
reboot system now
apply updates from ADB
wipe data/fatory reset
wipe cache partition
reboot to bootloader
power down
view recovery logs
apply from phone storage
apply from sd card
My phone is stuck at the logo screen and I cannot sideload or flash anything from the SD memory card or phone storage. My phone gives me an error when I try to flash from the SD card and my computer now does not detect my M9 (all drivers were installed previously as well as the SDK)
I don't want to do anything else yet because I'm afraid I will make things worse. Could any body advice me on how to fix my phone?
Thank you!
I was able to fix it.
Admin: Please delete this thread. Thank you!
tchan said:
I was able to fix it.
Admin: Please delete this thread. Thank you!
Click to expand...
Click to collapse
@tchan how did you fix it? I am in the same situation myself.
MightyRaith said:
@tchan how did you fix it? I am in the same situation myself.
Click to expand...
Click to collapse
You have to switch to the download mode on your M9 and use the fastboot command to flash a custom recovery (TWRP2050 worked for me). Make sure your SDK is up to date and you download and install all the HTC drivers for the M9.
This might help: http://forum.xda-developers.com/one-m9/general/guide-root-install-twrp-htc-one-m9-t3061133
tchan said:
You have to switch to the download mode on your M9 and use the fastboot command to flash a custom recovery (TWRP2050 worked for me). Make sure your SDK is up to date and you download and install all the HTC drivers for the M9.
This might help: http://forum.xda-developers.com/one-m9/general/guide-root-install-twrp-htc-one-m9-t3061133
Click to expand...
Click to collapse
Sadly I cannot enter download mode or recovery mode the phone simply reboots I had TWRP installed with LeeDroid and everything was peachy now I can't do a single thing with it lol.
MightyRaith said:
Sadly I cannot enter download mode or recovery mode the phone simply reboots I had TWRP installed with LeeDroid and everything was peachy now I can't do a single thing with it lol.
Click to expand...
Click to collapse
Shut the phone off,wait 10 seconds then hold volume down and start button. After a few seconds, it wil vibrate, release the buttons and it should start in donwload mode (black background).
MightyRaith said:
Sadly I cannot enter download mode or recovery mode the phone simply reboots I had TWRP installed with LeeDroid and everything was peachy now I can't do a single thing with it lol.
Click to expand...
Click to collapse
Turn on you phone and wait about 10 seconds after seeing the HTC logo. Hold down the volume up button and power button for a few seconds until the phone vibrates, as soon as that happens switch to the volume down button and power button that should put the phone in "download mode." Connect your phone to your PC. On your command prompt you can type "fastboot devices" to check and make sure your phone is good to go. After that, you should be able to flash TWRP which in turn would allow you to flash a custom rom and fix your phone.
tchan said:
Hello everyone,
I got my AT&T HTC M9 yesterday with 1.32.502.9. I unlocked the bootloader and installed TWRP successfully. I tried Installing Android Revolution 4.1 and didn't noticed the installation failed. When I restarted the phone it got stuck on the HTC logo. Someone after messing with the phone I ended up loosing TWRP and I'm back to the stock recovery with only these options:
reboot system now
apply updates from ADB
wipe data/fatory reset
wipe cache partition
reboot to bootloader
power down
view recovery logs
apply from phone storage
apply from sd card
My phone is stuck at the logo screen and I cannot sideload or flash anything from the SD memory card or phone storage. My phone gives me an error when I try to flash from the SD card and my computer now does not detect my M9 (all drivers were installed previously as well as the SDK)
I don't want to do anything else yet because I'm afraid I will make things worse. Could any body advice me on how to fix my phone?
Thank you!
Click to expand...
Click to collapse
please be patient
I don`t have m9 now but if you do this solution,maybe your phone boot up again ( this solution works on m8 )
I don`t think your phone bricked or damaged memory
you can do this solution,maybe your phone fixed !
1- charge your phone then update the htc usb driver and adb tools
2- then boot to the bootloader and flash the latest twrp recovery again ( don`t forgot do erase cache)
3- download other rom like viper rom then copy it on the flash memory ( to install rom with otg cable and flash memory)
4-do full wipe ( internal and external memory - system - cache - dalvik cache)
5- install rom from flash memory and do full wipe again in aroma installer
6- then restart your phone and wait to phone boot up again
7- if don`t boot up,go to the bootloader and flash boot.img from rom ( you should extract rom to see it )
after all you can s-off your phone if you like
good work:good:
my_android said:
please be patient
I don`t have m9 now but if you do this solution,maybe your phone boot up again ( this solution works on m8 )
I don`t think your phone bricked or damaged memory
you can do this solution,maybe your phone fixed !
1- charge your phone then update the htc usb driver and adb tools
2- then boot to the bootloader and flash the latest twrp recovery again ( don`t forgot do erase cache)
3- download other rom like viper rom then copy it on the flash memory ( to install rom with otg cable and flash memory)
4-do full wipe ( internal and external memory - system - cache - dalvik cache)
5- install rom from flash memory and do full wipe again in aroma installer
6- then restart your phone and wait to phone boot up again
7- if don`t boot up,go to the bootloader and flash boot.img from rom ( you should extract rom to see it )
after all you can s-off your phone if you like
good work:good:
Click to expand...
Click to collapse
Thanks for replying but I was able to fix my phone a few hours after. Those are the right steps but you're missing some details. HTC has now changed things a bit and added the "download mode." Flashing in bootloader does not work any more.
Glad your all sorted !
Me 2 help !!!!
tchan said:
Hello everyone,
I got my AT&T HTC M9 yesterday with 1.32.502.9. I unlocked the bootloader and installed TWRP successfully. I tried Installing Android Revolution 4.1 and didn't noticed the installation failed. When I restarted the phone it got stuck on the HTC logo. Someone after messing with the phone I ended up loosing TWRP and I'm back to the stock recovery with only these options:
reboot system now
apply updates from ADB
wipe data/fatory reset
wipe cache partition
reboot to bootloader
power down
view recovery logs
apply from phone storage
apply from sd card
My phone is stuck at the logo screen and I cannot sideload or flash anything from the SD memory card or phone storage. My phone gives me an error when I try to flash from the SD card and my computer now does not detect my M9 (all drivers were installed previously as well as the SDK)
I don't want to do anything else yet because I'm afraid I will make things worse. Could any body advice me on how to fix my phone?
Thank you!
Click to expand...
Click to collapse
Everytime i try to send commands its does not respond , adb devices=NOTHING adb get-state=NOTHING
what did u flash ? When i reboot it only shows a red triangle with a exclamation point and now my computer does not detect my m9
Also have tried to start the RUU from the htc website with no luck it only goes as far a the accept licseing
May be you have to update adb/fastboot or your Htc's drivers...
tchan said:
Hello everyone,
I got my AT&T HTC M9 yesterday with 1.32.502.9. I unlocked the bootloader and installed TWRP successfully. I tried Installing Android Revolution 4.1 and didn't noticed the installation failed. When I restarted the phone it got stuck on the HTC logo. Someone after messing with the phone I ended up loosing TWRP and I'm back to the stock recovery with only these options:
reboot system now
apply updates from ADB
wipe data/fatory reset
wipe cache partition
reboot to bootloader
power down
view recovery logs
apply from phone storage
apply from sd card
My phone is stuck at the logo screen and I cannot sideload or flash anything from the SD memory card or phone storage. My phone gives me an error when I try to flash from the SD card and my computer now does not detect my M9 (all drivers were installed previously as well as the SDK)
I don't want to do anything else yet because I'm afraid I will make things worse. Could any body advice me on how to fix my phone?
Thank you!
Click to expand...
Click to collapse
I cant enter recovery mood or download mode adb is not reconized i even tryed adb get-state and nothing shows up
tried to sideload and when its done is say e:veracation failed then show this screen again
You're best sending it to htc.
Sent from my HTC One M9 using Tapatalk

Accidentally formatted system partition. Now stuck at bootlogo

While trying to flash a ROM , I formatted the system partition through TWRP and accidentally rebooted the phone. I was running MIUI 7 in the phone previously. I have TWRP backup of system and boot but the phone is stuck at bootlogo and power button volume down combo fires factory mode. I guess I deleted both the recovery and the OS. Phone is getting charged , as the battery indicator is displayed when plugged. Is there anyway to recover my A1?
Sorry if the question is a repeat. Any help would be appreciated.
FridayEagle said:
While trying to flash a ROM , I formatted the system partition through TWRP and accidentally rebooted the phone. I was running MIUI 7 in the phone previously. I have TWRP backup of system and boot but the phone is stuck at bootlogo and power button volume down combo fires factory mode. I guess I deleted both the recovery and the OS. Phone is getting charged , as the battery indicator is displayed when plugged. Is there anyway to recover my A1?
Sorry if the question is a repeat. Any help would be appreciated.
Click to expand...
Click to collapse
yo man,
first of all for getting into recovery mode is ; power off your device > wait few seconds > then press power + volume up button, there you go.
then, if youve wiped your device's system partitions via twrp , nothin to worry, just download any rom, put it to your sd card, reboot recovery, wipe everything except sd card, choose downloaded zip to flash, swipe to confirm, once the flashing rom completes reboot your device. :good:

Mi Max 3 stuck in fastboot

Long story short, I tried to flash a global ROM on my Mi phone. However, after a few unsuccessful attempts at doing so, my phone is now stuck in the fast boot screen.
I tried all I know and what I can find online, but the problem still persists, where when holding the power button it would boot to main power screen and then make a buzz and go back to the fastboot screen.
Have tried:
- Resetting through recovery mode (pow + vol up)
- plugging phone into my computer to reflash the ROM (error remote: unknown command) / on my phone it would switch out of fastboot and instead display this message: "press any key/button to shutdown"
- pow + vol down (held for more than 1 minute)
- pow (held for more than 5 minutes, everytime it would boot and then boot back into fastboot mode with the buzz in between)
- ADB console commands:
- fastboot reboot
- fastboot device
- tried using MiPCSuite, plugged my phone in, but application didn't detect my phone
- running all applicable applications as mentioned above as admin
- when resetting phone progress bar would stop at 1.03% then it would say reset completed (I don't think did reset the phone, but whatever...)
- tried different ROM versions, Global and China (Once again it would either switch out of fastboot on screen OR in the flash tool it would display the error "unknown command" which I assume would be something to do with the communication between my PC and the device itself)
At this point I don't know what else to do, watched every tut on youtube, read pretty much all the forums I could find related to this issue.
Any help would be much appreciated!
Is it locked or unlocked?
I whould try to update firmware, then recovery (wipe all at this point) and at the end ROM (format data, wipe dalvik and cache at this point), always worked for me. But - the phone should be unlocked for this
Wywern.pl said:
Is it locked or unlocked?
I whould try to update firmware, then recovery (wipe all at this point) and at the end ROM (format data, wipe dalvik and cache at this point), always worked for me. But - the phone should be unlocked for this
Click to expand...
Click to collapse
I have tried going into recovery mode and wiping all data, and trying to update the firmware via the flash tool. But as I said above I can't it gives me the error "error: FAILED(remote:unknown command)" and since I can't get into my phone, I can't use mipcsuite either or enable and settings.
Note - wipe data and format data is not the same
I've stuck with some stupid error ("erase all data" message and reboot to twrp) for hours until I formated data
jayX23 said:
I have tried going into recovery mode and wiping all data, and trying to update the firmware via the flash tool. But as I said above I can't it gives me the error "error: FAILED(remote:unknown command)" and since I can't get into my phone, I can't use mipcsuite either or enable and settings.
Click to expand...
Click to collapse
did you solve it? i also need to flash rom via mi flash tool but I do exact same error.

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