[Q] Bricked? - Acer Iconia A500

I have a a501, it was on alexandria III and it was taking forever to boot so I figured i'd update the firmware with ICS out.
I installed http://forum.xda-developers.com/showthread.php?t=1619913 via CWM/recovery menu ver 5.5 or so and rebooted, power + volume up didn't give me a menu so I tried to reinstall the ICS bootloader, it installed like the time before except I got messages from my recovery menu like it couldn't write logs to disk (thought that was fine - thought it was being overwrote) so restarted my tablet and... nothing was unresponsive (black screen no blacklight) so I held the power button down until it shut down.
I've tried power/volume up, tried using the reset button to get into APX mode - didn't see the tablet on my computer(But I may have been impatient), tried power/volume down repeatedly, unplugged the battery and rebooted - nothing.
After I shut it down it's responsive like it's functioning somewhat, it'll turn on and off but no blacklight and nothing on the screen or vibrations.
USB debugging is on, I don't know my id
Anyone with similar problem? How did you fix it? :\
edit: apx mode is indeed working

Marforius said:
I have a a501, it was on alexandria III and it was taking forever to boot so I figured i'd update the firmware with ICS out.
I installed http://forum.xda-developers.com/showthread.php?t=1619913 via CWM/recovery menu ver 5.5
Click to expand...
Click to collapse
"This bootloader can only be flashed using nvflash. You can use the guide here http://forum.xda-developers.com/show....php?t=1622425"
This is from the OP of the thread you linked to...and is the reason you have ended up "bricked?" If you had followed the guide you would have saved yourself alot of grief....You cannot, I repeat, cannot flash the bootloader or an ICS rom via cwm
I've tried power/volume up,
Click to expand...
Click to collapse
This is "fastboot mode" only available on the unlocked bootloader
tried using the reset button to get into APX mode
Click to expand...
Click to collapse
to get into APX MODE use a paper clip to press and hold the reset button,
then press and hold the power button for 3 secs and release it - after another second release the reset button.
Your tab screen will be black and the power light will be on
- didn't see the tablet on my computer(But I may have been impatient),
Click to expand...
Click to collapse
yeah, impatience can cause alot of problems - to fix this you must have the acer drivers installed and the USB drivers from the android sdk
I don't know my id
Click to expand...
Click to collapse
you must get this to have any hope of recovering your tab - go to the cpuid link in my sig - theres a guide there by "srbeen" on how to retrieve your cpuid with linux - the only other way i know for someone in your position is "usbdeview" - that is in the same post,
Anyone with similar problem?
Click to expand...
Click to collapse
yup, recently the forum is full of posts like yours
How did you fix it? :\
Click to expand...
Click to collapse
Patience and following instructions to the letter!!! You must use nvFlash to fix this - I have given you enough info for you to recover your tab BUT you cannot do anything without your cpuid - so I suggest you begin by reading the cpuid guide thoroughly first - everything you need is in there...

As Dibbs informed, when you update your bootloader to V8, you can only do this via NVFlash.
For those of us who installed all Skirlax_CZ bootloaders, the CWM function did not arrive till Version 4 of the bootloader. Only then could you CWM the bootloaders. But..... you had to be on a version 4 bootloader "First", before you could CWM the subsequent versions of the bootloader.
If you are just starting out, then you must use NVFlash to initially install any version of the bootloader.
MD

Related

[Q] Can't reboot into recovery in VegaComb 3.2 Build 7

i have some issues with a vegacomb 3.2 in a booting into recovery. my device is Viewsonic Viewpad 10s. in first i'm update to bluetooth fixed problem. everything work fine untill i update and get some issues
1.WiFi can't connect at all , all of it. no secure , WPS , PEAP , WPA WPA2
2.can't recovery with CWM or power button
i can't do anything with that all so i try to factory reset and i get it ****ed up .. OTZ
so. i want to reflash to build 7 and update to build 8. can i fix this or my viewpad 10s become a toilet paper now ?
To enter in recovery mode, use RomManager.
puertocastilla said:
To enter in recovery mode, use RomManager.
Click to expand...
Click to collapse
can't use ROM Manager to recovery too. WiFi can't connect and when it appear allow a superuser. a program become idle and didn't do anything
Sounds like a bad flash. I'd reflash modded stock v2, then boot to recovery and wipe user data/cache/dalvik and then reflash the full 8.1 ROM. This should make sure you have a working CWM and probably fix your wifi issue too.
puertocastilla said:
To enter in recovery mode, use RomManager.
Click to expand...
Click to collapse
NO! If you are using VC 3.2 you should avoid using the ROM manager provided recovery as it is for the wrong tablet (g tablet i think) and it WILL soft-brick your Vega.
I've soft bricked my vega using this exact method!
How do I unbrick please?
John
truxntrax said:
I've soft bricked my vega using this exact method!
How do I unbrick please?
John
Click to expand...
Click to collapse
anyone?
How should I enter recovery in VC, with the apk?
I'm using viewcomb btw.
robuser007 said:
anyone?
How should I enter recovery in VC, with the apk?
I'm using viewcomb btw.
Click to expand...
Click to collapse
When you say "soft bricked", what exactly does the tab do when you turn it on??
Best way to recover is to power down tab, attach tab to computer with usb cable. Make sure tab is charged, or plugged in at the time. hold down the back button (top of tab, next to power button), then press and hold the power button for 2 seconds, then release it while you continue to hold the back button another 2 seconds, then release back button. Your screen should flash once quickly, then stay off.
Now, if everything worked, click on the Mod Stock icon on your computer. and after a little time it will start writing files to the tab. If it says device cant be found, you are not in recovery mode, try again the power/back button instructions, it may take a few times before you get tab into recovery.
There are more precise booting into recovery instructions if needed, just Google "rooting Advent tablet"
I'm assuming you already have the usb drivers, and the roms on your computer, and know how to use them.
evophonehome said:
When you say "soft bricked", what exactly does the tab do when you turn it on??
Best way to recover is to power down tab, attach tab to computer with usb cable. Make sure tab is charged, or plugged in at the time. hold down the back button (top of tab, next to power button), then press and hold the power button for 2 seconds, then release it while you continue to hold the back button another 2 seconds, then release back button. Your screen should flash once quickly, then stay off.
Now, if everything worked, click on the Mod Stock icon on your computer. and after a little time it will start writing files to the tab. If it says device cant be found, you are not in recovery mode, try again the power/back button instructions, it may take a few times before you get tab into recovery.
There are more precise booting into recovery instructions if needed, just Google "rooting Advent tablet"
I'm assuming you already have the usb drivers, and the roms on your computer, and know how to use them.
Click to expand...
Click to collapse
This works offcourse, but I want to install VegaICE updates, which needs recovery acces in vegacomb (which is not possible for me).
robuser007 said:
This works offcourse, but I want to install VegaICE updates, which needs recovery acces in vegacomb (which is not possible for me).
Click to expand...
Click to collapse
I have exactly the same issue! I have Vegacomb and wanted to go to HoneyIce as my son can't get skype to work BUT i can't get into Recovery in order to update. Rom Manager just reboots and all i see is the 'Warning about free software' then it just boots into VegaRom.
Would love someone to help if possible?
Thanks in advance

[GUIDE] How to rollback from ICS leak.

How to rollback from ICS leak
***THIS WILL WIPE YOUR DATA***
What you need:
EUU from Timmydean of 3.2.1 V4
http://forum.xda-developers.com/showthread.php?t=1307539
Your CPUID
Your CPUID was probably changed when you flashed the ICS leak.
How you can find it in the ICS leak
Download and install a terminal emulator from the market and enter in the following.
dmesg > /mnt/sdcard/dmesg.txt
Copy that file to your computer and open it or open it in a text editor on your A500
Look for androidboot.serialno= and the number is listed is your CPUID.
***DO NOT PLUG TABLET INTO COMPUTER UNTIL STEP ******
1. Download and extract root-3.2.1-V4
2. Run PBJ20upgrade.exe (right click and run as administrator).
3. Click Ok on Make sure your ICONIA TAB is not connected to a computer. If a "New Hardware Wizard" window appears, click "Cancel".
4. Click Next
5. Let it install the USB drivers
6. Click Next on Go to Settings/Applications/Development to enable "USB debugging" (see the picture)
7. It will try and scan for the current image version and new image version, this will take about 5 minutes.
8.
Follow the steps to get your A500 into APX mode.
1. Turn off the ICONIA TAB by long pressing the power button for 5 seconds.
2. Use a paperclip to push the reset button, don't release it.
3. Press the power button for 3 seconds.
4. Release the power button
5. Wait for 1 sec and take out the paperclip.
6. Use the USB cable to connect ICONIA TAB and PC
7. Click Yes
THIS WILL WIPE YOUR DATA.
8. Type in your CPUID, click next.
This will reset your tablet to a Rooted 3.2.1. Once it boots up you can install Acer Recovery installer from the market and install CWM recovery and restore your ROM or flash a new one.
Thanks for writing this up.
Sent from my A500 using Tapatalk
Thanks, i did this last night. There is another way with CWM directly installed, so you can do a CWM nand restore immediately after the process. I'll post that later today. Currently at the swimmingpool for my son's swimming lessons.
Sent from my Ping192's Custom ROM using xda premium
On a501
this should work on a501 too right? coz i dont see any androidboot.serialno in my dmesg.txt
edit :- it works. dmesg > /mnt/sdcard/dmesg.txt has to be issued in terminal within few seconds after we reboot the system.
THANKS!
jazzyjames said:
How to rollback from ICS leak
***THIS WILL WIPE YOUR DATA***
What you need:
EUU from Timmydean of 3.2.1 V4
http://forum.xda-developers.com/showthread.php?t=1307539
Your CPUID
Your CPUID was probably changed when you flashed the ICS leak.
How you can find it in the ICS leak
Download and install a terminal emulator from the market and enter in the following.
dmesg > /mnt/sdcard/dmesg.txt
Copy that file to your computer and open it or open it in a text editor on your A500
Look for androidboot.serialno= and the number is listed is your CPUID.
***DO NOT PLUG TABLET INTO COMPUTER UNTIL STEP ******
1. Download and extract root-3.2.1-V4
2. Run PBJ20upgrade.exe (right click and run as administrator).
3. Click Ok on Make sure your ICONIA TAB is not connected to a computer. If a "New Hardware Wizard" window appears, click "Cancel".
4. Click Next
5. Let it install the USB drivers
6. Click Next on Go to Settings/Applications/Development to enable "USB debugging" (see the picture)
7. It will try and scan for the current image version and new image version, this will take about 5 minutes.
8.
Follow the steps to get your A500 into APX mode.
1. Turn off the ICONIA TAB by long pressing the power button for 5 seconds.
2. Use a paperclip to push the reset button, don't release it.
3. Press the power button for 3 seconds.
4. Release the power button
5. Wait for 1 sec and take out the paperclip.
6. Use the USB cable to connect ICONIA TAB and PC
7. Click Yes
THIS WILL WIPE YOUR DATA.
8. Type in your CPUID, click next.
This will reset your tablet to a Rooted 3.2.1. Once it boots up you can install Acer Recovery installer from the market and install CWM recovery and restore your ROM or flash a new one.
Click to expand...
Click to collapse
Nice 1! As the fool I was I didn't make a backup before flashing ICS haha
Thanks man.
Cant Rollback
EUUS Keeps stating my cpuid is incorrect when i enter the value at androidboot.serialno even though its correct help please what do i do?
darkensx said:
EUUS Keeps stating my cpuid is incorrect when i enter the value at android.boot value even though its correct help please what do i do?
Click to expand...
Click to collapse
Did you paste your cpuid with the 0x in front? if so remove them. add only 16 digits.
vizzzy said:
Did you paste your cpuid with the 0x in front? if so remove them. add only 16 digits.
Click to expand...
Click to collapse
no i removed the 0x before pasting it and if i enter it a 2nd time it accepts it but progress bar looks and stays like this forever
[|||||||_________________________]
never moves passed that also the tab wont enter recovery says the recovery.img is incorrect or something to that effect.
Dunno why but it says please download the newer image for the upgrade... then just an exit button... does nothin?
EDIT: Never mind... I re-read the post... but I accidentally pulled the USB while it was 'upgrading' is that a problem as now it doesn't work any more?
EDIT2: Oh thank god! It tells you when it works because it says enter Acer Download Mode in the top left in small writing. Seems pretty fool-proof and robust to me, thank you JazzyJames.
EDIT3: Oh crap it failed again... now it wants me to restart it.. :'(
EDIT4: All good 3.2 booted! Thanks again.
(I put all this up for the people like me so they don't have multiple heart attacks either.)
Worked perfectly first try. Thank you!
darkensx said:
no i removed the 0x before pasting it and if i enter it a 2nd time it accepts it but progress bar looks and stays like this forever
[|||||||_________________________]
never moves passed that also the tab wont enter recovery says the recovery.img is incorrect or something to that effect.
Click to expand...
Click to collapse
That's more like your PC not recognizing your tablet in apx mode then. Make sure the driver is installed. If you go to device manager you will be able to check if the driver is installed or not.
i must be screwing up something simple, because when i try and get into apx mode the tablet vibrates, shows the black acer screen and instantly shuts down. i can power on just fine without holding reset but cant figure out apx mode.
a couple times i managed to get it to boot into the lock screen, says "Charging, 0%" with my wifi connecting but no screen response. works fine after a 5-second power button shut off and rebooting. cant figure out apx mode at all for some reason.
nifterific said:
i must be screwing up something simple, because when i try and get into apx mode the tablet vibrates, shows the black acer screen and instantly shuts down. i can power on just fine without holding reset but cant figure out apx mode.
a couple times i managed to get it to boot into the lock screen, says "Charging, 0%" with my wifi connecting but no screen response. works fine after a 5-second power button shut off and rebooting. cant figure out apx mode at all for some reason.
Click to expand...
Click to collapse
The best way to know if your in APX mode is when the screen is off and your power button is white. You don't need to be EXACT on the times of holding down power and reset, the main thing is.
Hold Reset atleast 3 seconds
Continue to hold reset and add power button.
Release power after about 3 seconds.
Then release reset, screen will be blank and power button is white, I myself noticed it works best if the tablet is not fully charged and not plugged into charge.
jazzyjames said:
The best way to know if your in APX mode is when the screen is off and your power button is white. You don't need to be EXACT on the times of holding down power and reset, the main thing is.
Hold Reset atleast 3 seconds
Continue to hold reset and add power button.
Release power after about 3 seconds.
Then release reset, screen will be blank and power button is white, I myself noticed it works best if the tablet is not fully charged and not plugged into charge.
Click to expand...
Click to collapse
got it, thanks a ton
You should have posted a freaking warning that this deleted EVERYTHING off of our tablets. I lost pictures of my daughter that I'll never get back because of this method and there was no warning what so ever. Generally wiping data means wiping data, not /mnt/sdcard.
Just a question before jumping on this: I have installed the leaked stock 4.0.3, so I lost everything with regards to rooting. Also I can not use Busybox, SuperUser, CWM et all on my Iconia.
With this method I can fallback to 3.2.1 even though I have the stock leaked 4.0.3 installed?
Also the CPUID is not the original one from before flashing the stock 4.0.3, but the CPUID I got from flashing with 4.0.3. Is this a problem?
---------- Post added at 07:09 PM ---------- Previous post was at 07:04 PM ----------
nifterific said:
got it, thanks a ton
You should have posted a freaking warning that this deleted EVERYTHING off of our tablets. I lost pictures of my daughter that I'll never get back because of this method and there was no warning what so ever. Generally wiping data means wiping data, not /mnt/sdcard.
Click to expand...
Click to collapse
I am sure there are recovery tools - surely for Windows - who can help you get your "lost" pictures back.
CheopsChefren said:
Just a question before jumping on this: I have installed the leaked stock 4.0.3, so I lost everything with regards to rooting. Also I can not use Busybox, SuperUser, CWM et all on my Iconia.
With this method I can fallback to 3.2.1 even though I have the stock leaked 4.0.3 installed?
Also the CPUID is not the original one from before flashing the stock 4.0.3, but the CPUID I got from flashing with 4.0.3. Is this a problem?
Click to expand...
Click to collapse
No issues. get the cpuid of from your current rom and follow this method to downgrade. It will work.
nifterific said:
got it, thanks a ton
You should have posted a freaking warning that this deleted EVERYTHING off of our tablets. I lost pictures of my daughter that I'll never get back because of this method and there was no warning what so ever. Generally wiping data means wiping data, not /mnt/sdcard.
Click to expand...
Click to collapse
What have we learned?
Back-up files that are important to you.
Take the time to learn about what these tools do before using them.
That being said, the OP should include that ALL data on the tablet will be wiped.
PS: /mnt/sdcard is actually in the data partition (/data/media). Custom recoveries skip over the /media directory when doing a data wipe, by default.
Hit quote instead of edit. My apologies.
Did a restore and it worked flawlesly. Thanks for the clear instructions!
Jesus..i spent so many hours trying to get the computer to see the tablet in apx mode and it just won't..any ideas on how to get the drivers installed correctly? Adb is installed and i have rooted quite a number of phones so i know its not Adb
Edit: Got it! I had to manually add the damn drivers through device manager.. thank you everyone for the help!!

Acer a501 not booting only power light on and off

I really need help if anyone can help out.
I followed guide at http://forum.xda-developers.com/showthread.php?t=1622425
to the T with no errors all looked good until it got hung for 3.5 hrs on this message
Flashing Recovery (SOS) stage one - formatting partition..
I try cmd and adb to see if i can see my devices still listed and it was not. I waited a bit more. than reboot the tablet and to my bad luck only the power button light up. nothing on the screen, even tried to do rest via the reset button, no go, held down the vol button with the power still not luck.
Anyone have a fix for this ??????
Rob
rdukes said:
I really need help if anyone can help out.
I followed guide at http://forum.xda-developers.com/showthread.php?t=1622425
to the T with no errors all looked good until it got hung for 3.5 hrs on this message
Flashing Recovery (SOS) stage one - formatting partition..
I try cmd and adb to see if i can see my devices still listed and it was not. I waited a bit more. than reboot the tablet and to my bad luck only the power button light up. nothing on the screen, even tried to do rest via the reset button, no go, held down the vol button with the power still not luck.
Anyone have a fix for this ??????
Rob
Click to expand...
Click to collapse
If your light is on, and the display is black, you are probably stuck in APX mode. Long press the power button and it should go off.
I would also plug into a charger if I were you, before doing anything else.
You will probably need to NVFlash the bootloader and recovery. If it didn't work well the first time, then you should probably be checking drivers. With the tablet in APX mode (hold pinhole button, press and hold PWR, count to 3 seconds, release PWR, then 1 more second and release pin hole.). Tablet should have black display with lit pwr button.
Plug into USB, and make sure windows recognizes it as a Recovery Device. If not, load the right drivers (I use Google USB Android drivers). Might have to load them manually.
Now, I know you wrote down your UID number somewhere, as you will need it.
I uploaded an old ver3 NVFlash package;
http://www.4shared.com/zip/Lgp9DhiH/NVFLASH_Blackthund3r_3bootload.html
Open a CMD window in the directory you extracted, and type run_all
Make sure you get your tab in APX mode, and windows recognizes it. Then follow the prompts. At the end, if good, it should say "Pass"
It doesn't require USB Debugging. If you can get into APX mode, it may work for you. If not, you might post in the bootloader threads.
Link to converting your UID to SBK is found in the guide you posted earlier.
Good Luck!
MD
download at the top afterota and there should be a get out of apx mode, but in apx mode you hold down the power and the light will go of then you hold it again and it will boot
AFTEROTAhttp://forum.xda-developers.com/showthread.php?t=1675939
Moscow Desire said:
If your light is on, and the display is black, you are probably stuck in APX mode. Long press the power button and it should go off.
I would also plug into a charger if I were you, before doing anything else.
You will probably need to NVFlash the bootloader and recovery. If it didn't work well the first time, then you should probably be checking drivers. With the tablet in APX mode (hold pinhole button, press and hold PWR, count to 3 seconds, release PWR, then 1 more second and release pin hole.). Tablet should have black display with lit pwr button.
Plug into USB, and make sure windows recognizes it as a Recovery Device. If not, load the right drivers (I use Google USB Android drivers). Might have to load them manually.
Now, I know you wrote down your UID number somewhere, as you will need it.
I uploaded an old ver3 NVFlash package;
http://www.4shared.com/zip/Lgp9DhiH/NVFLASH_Blackthund3r_3bootload.html
Open a CMD window in the directory you extracted, and type run_all
Make sure you get your tab in APX mode, and windows recognizes it. Then follow the prompts. At the end, if good, it should say "Pass"
It doesn't require USB Debugging. If you can get into APX mode, it may work for you. If not, you might post in the bootloader threads.
Link to converting your UID to SBK is found in the guide you posted earlier.
Good Luck!
MD
Click to expand...
Click to collapse
Hey MD,
I didn't get that file from you still, but i got my tablet to shwo the logo and the white text again by running the a500apflashtool\nvflash.exe but still not luck with passing Flashing Bootloader (EBT) stage one - formatting partition...
I would love to get more info on how to get pass this.
Robert
rdukes said:
Hey MD,
I didn't get that file from you still, but i got my tablet to shwo the logo and the white text again by running the a500apflashtool\nvflash.exe but still not luck with passing Flashing Bootloader (EBT) stage one - formatting partition...
I would love to get more info on how to get pass this.
Robert
Click to expand...
Click to collapse
IF yr recovery drivers have loaded when you are in apx and yr cpuid is correct
then u may have a tab that has issues with the "bct"... the devs are working on a fix for this....
most of us with this issue rolled back to HC using timmydeans EUU then reflashed the bootloader from there with no probs...go figure???
EDIT: the EUU is for a500 you will not have 3g but its just to get back to HC with - when it comes to flashing the bootloader again be sure to
flash yr chosen ics rom first...
as far as more info take a look at civs b/l or F/R extreme rom threads (last 5-6 pages) - the flash itself should take no more than a minute
or two, i use nvflash as it provides a bit of feedback to you if things aren't quite right
you will need td's EUU link in my sig
and jazzyjames tutorial on how to rollback to HC
you will lose ALL your data not only b/c the EUU wipes it but also
ics system apps dont take kindly to being dragged back to HC so make sure you do a full wipe and format any chance you can
for running a glitch-free ICS
rdukes said:
Hey MD,
I didn't get that file from you still, but i got my tablet to shwo the logo and the white text again by running the a500apflashtool\nvflash.exe but still not luck with passing Flashing Bootloader (EBT) stage one - formatting partition...
I would love to get more info on how to get pass this.
Robert
Click to expand...
Click to collapse
Heck, I e-mailed it to you also earlier.
Well, Dibb's is pretty good on this stuff, so I'll pass it to him. Try his steps. He's pretty good on unbricks also.
For me, it's a bit late. Work tomorrow mate.
Also, make sure you are using a good USB cable. You can't always use phone cables. The newer HTC USB cables work for me. This has been known to make things go wonky.
MD

[Q] Please help guys

I have installed 4.2.2 on nexus 7. As I had skipped account login at welcome screen, i could not login the account. I altered the apk of login. After factory reset my device has hanged on setup on welcome screen. I tried installing custom rom through stock bootloader but the bootloader says installation failed. How do I solve thia problem guys???
subin.nexus7 said:
don't know the exact steps, but i got it out of the APX mode and into the bootloader.
1. Tablet plugged into computer.
2. Held Volume Down + Volume Up + Power (simultatenously) for three seconds
3. And then released all, and pressed Power again.
4. Tablet booted into bootloader.
I thought that unlocking the bootloader ALWAYS voided the warranty, but in anycase I flashed reflashed ALL stock and locked the bootloader. Will be sending it to ASUS now. Thanks again!
EDIT:
So I wanted to verify that it was a CPU problem, and I downloaded StabilityTest again and ran the CPU load test. It crashed within two minutes, and went into AXP mode again. To get it out of AXP mode, the correct instructions:
1. Plug in the usb into computer
2. Hold Volume Down + Volume Up + Power simultaneously for like 15 seconds
3. The bootloader should show up.
4. If it doesn't, unplug the usb cable, and plug it back in and then repeat the these procedures.
Click to expand...
Click to collapse
Very helpful! I don't have a problem but I've read about others stuck in APX mode. This should be pinned if it works for those stuck in APX. Maybe you should change the thread title to something about APX solution so it draws some attention.
kieso said:
Very helpful! I don't have a problem but I've read about others stuck in APX mode. This should be pinned if it works for those stuck in APX. Maybe you should change the thread title to something about APX solution so it draws some attention.
Click to expand...
Click to collapse
Well... being stuck in APX doesn't necessarily mean your hardbricked. (Corrupt or erased bootloader).
But being hardbricked DOES mean your device will default to APX mode.
To use a mathematical metaphor, one is a SUBSET of the other.
-------
bftb0 has posted an exhaustive list of Nexus 7 button press combos here...
http://forum.xda-developers.com/showthread.php?t=2133986
... which includes how to pro-actively get into APX mode... although until somebody figures how to nvFlash the N7, APX is sort of redundant.
Rgrds,
Ged.
Delete
subin.nexus7 said:
I have installed 4.2.2 on nexus 7. As I had skipped account login at welcome screen, i could not login the account. I altered the apk of login. After factory reset my device has hanged on setup on welcome screen. I tried installing custom rom through stock bootloader but the bootloader says installation failed. How do I solve thia problem guys???
Click to expand...
Click to collapse
I'm sort of confused about the relationship between your edited post and what (apparently ?) kieso quoted, but I'll throw out a few suggestions:
1) AFAIK, there is no way to flash a dev ROM using fastboot (only the boot image of a dev ROM can be flashed this way). You said "bootloader", not "custom recovery" ... so that implies using fastboot. If that is not the case, then your use of terminology is not correct. (It's a computer - reporting details correctly is incredibly important).
2) If you bypass the WiFi login, an account can be added at any time later using the settings menu or simply by launching the Google Play (market) app - there is no need to "alter the apk of login", whatever that means.
3) I would recommend at this point that you start completely over by flashing a factory ROM using fastboot - see the sticky thread about returning to stock using fastboot. If you already have the 4.18 bootloader installed, I recommend you avoid like the plague any operation involving flashing the bootloader.
4) It should be obvious from the trouble that you got yourself into that you should learn what nandroid backups are and that you START USING THEM. The first thing you do after rooting is "make a backup", not "flash a ROM"
good luck
Thanq so much.But still some clarification needed
Now What do I do? My nexus 7 can't pass through at welcome screen saying saying unfortunately setup wizard has stopped. and in recovery{i have no custom recovery, I use bootloader 4.18} i cant flash any rom. I just want to start device any how.. any way.. Is there any way??
subin.nexus7 said:
Now What do I do? My nexus 7 can't pass through at welcome screen saying saying unfortunately setup wizard has stopped. and in recovery{i have no custom recovery, I use bootloader 4.18} i cant flash any rom. I just want to start device any how.. any way.. Is there any way??
Click to expand...
Click to collapse
I guess I am having trouble understanding the sum total of information you have provided - I guess you have omitted some information or mis-stated something. No custom recovery sort of implies a full stock device, but yet you previously mentioned modifying/changing an .apk in /system... normally that would be possible only with a rooted ROM or a custom recovery to do that.
If your tablet is 100% stock, a factory reset of the tablet should allow you to boot once again - at the cost of deleting everything you put on the device, including all files you put on the (pseudo-) SD card.
If that is the case:
- press and hold power+vol-down until the bootloader screen shows up
- use vol-up/vol-down to select "start recovery" and press the power button
- an android lying on it's back should show up; this is the stock recovery splash screen, so
- press power+vol-up simultaneously for about one second - the stock recovery menu should show up
- select factory reset (with vol-up/vol-down) and press the power button.
good luck
bftb0 said:
I guess I am having trouble understanding the sum total of information you have provided - I guess you have omitted some information or mis-stated something. No custom recovery sort of implies a full stock device, but yet you previously mentioned modifying/changing an .apk in /system... normally that would be possible only with a rooted ROM or a custom recovery to do that.
If your tablet is 100% stock, a factory reset of the tablet should allow you to boot once again - at the cost of deleting everything you put on the device, including all files you put on the (pseudo-) SD card.
If that is the case:
- press and hold power+vol-down until the bootloader screen shows up
- use vol-up/vol-down to select "start recovery" and press the power button
- an android lying on it's back should show up; this is the stock recovery splash screen, so
- press power+vol-up simultaneously for about one second - the stock recovery menu should show up
- select factory reset (with vol-up/vol-down) and press the power button.
good luck
Click to expand...
Click to collapse
when you say at the cost of deleting everything, does this include deleting everything in the bootloader because thats what I did when I used the command "fastboot erase bootloader"

How to restore bricked A501?

Hello everyone, i have a Iconia Tab A501 and i can't get it to work.
When i power it up it just hangs on the Acer logo. I can enter in recovery, but any rom (i tried 3 of them) that i try to flash doesn't work. The green android with the rotating 3d-thing is there but after a few seconds it's gone and at his place there is another android with the open belly and the red warning symbol.
I can't flash it because i don't have the cpuid. The bootloader is locked. What can i do?
edocod said:
Hello everyone, i have a Iconia Tab A501 and i can't get it to work.
When i power it up it just hangs on the Acer logo. I can enter in recovery, but any rom (i tried 3 of them) that i try to flash doesn't work. The green android with the rotating 3d-thing is there but after a few seconds it's gone and at his place there is another android with the open belly and the red warning symbol.
I can't flash it because i don't have the cpuid. The bootloader is locked. What can i do?
Click to expand...
Click to collapse
Sorry if this is a bit late. I'm not sure if this will work for a Iconia A501(I have A500), but you can try a hard reset.
To do this, power off, hold down volume UP(not down like to enter recovery), power up, then toggle the screen lock switch back and forth (I believe you can release the power button while doing this, just keep holding to volume control) This should equate to a factory reset(I've never done it, so I'm not sure). If it doesn't work try it again(apparently it takes a few tries)
Hope this helps!
CurtisMJ said:
Sorry if this is a bit late. I'm not sure if this will work for a Iconia A501(I have A500), but you can try a hard reset.
To do this, power off, hold down volume UP(not down like to enter recovery), power up, then toggle the screen lock switch back and forth (I believe you can release the power button while doing this, just keep holding to volume control) This should equate to a factory reset(I've never done it, so I'm not sure). If it doesn't work try it again(apparently it takes a few tries)
Hope this helps!
Click to expand...
Click to collapse
It doesn't work. It turns on showing the acer logo and hangs.
It's probably done the same as mine, died permanently. Nothing you can do about it. It's most likely that the mmc is broken or has become unsoldered. Sorry but I suspect it's toast.
Sent from my GT-N8000 using Tapatalk HD
edocod said:
It doesn't work. It turns on showing the acer logo and hangs.
Click to expand...
Click to collapse
How long did you wait? It takes some time to boot up first time. If you still have issues you can try force it into APX mode and flash the bootloader and recovery again, then reflash the stock ROM in recovery. http://forum.xda-developers.com/showthread.php?t=1619913
Or it could be completely dead like zardoz99 says. That would seriously suck.
EDIT:
Read again. Y U HAVE NO CPUID!?
CurtisMJ said:
How long did you wait? It takes some time to boot up first time. If you still have issues you can try force it into APX mode and flash the bootloader and recovery again, then reflash the stock ROM in recovery. http://forum.xda-developers.com/showthread.php?t=1619913
Or it could be completely dead like zardoz99 says. That would seriously suck.
EDIT:
Read again. Y U HAVE NO CPUID!?
Click to expand...
Click to collapse
I waited all the night.
The tablet isn't mine so i don't have the CPUID. However, it enters in APX mode and in recovery.
edocod said:
I waited all the night.
The tablet isn't mine so i don't have the CPUID. However, it enters in APX mode and in recovery.
Click to expand...
Click to collapse
Sorry, being even in APX mode you can't do anything without your CPUID. Sorry, but the only thing I can think of now is to send it in to Acer to repair.
CurtisMJ said:
Sorry, being even in APX mode you can't do anything without your CPUID. Sorry, but the only thing I can think of now is to send it in to Acer to repair.
Click to expand...
Click to collapse
You can get the CPUID in APX mode, see [GUIDE] Recovering Recovery/Obtaining SKB.
eppeP said:
You can get the CPUID in APX mode, see [GUIDE] Recovering Recovery/Obtaining SKB.
Click to expand...
Click to collapse
Maybe I should do my research next time Once you got the SBK you should be set to flash:good: Good Luck!

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