[Q] How to unbrick A500 - Acer Iconia A500

The device is stuck in APX mode, I can't find CPUID. Recovery flashing via SD doesn't work.
How can I ressurect the device ?
Thanks and best regards,
Ivailo

This should be of interest for you to get your cpuid and sbk. http://forum.xda-developers.com/showthread.php?t=1751978
Gesendet von meinem Iconia A501 mit Tapatalk 2

Related

'MBR read failed'- Please help :(

hi guys, my i9001 seems to be bricked. Something went wrong when i was updating my device via kies. and my device got stuck on bootscreen. Now when i try to flash via odin i get the following error (attached image below). Please help
renuk11 said:
hi guys, my i9001 seems to be bricked. Something went wrong when i was updating my device via kies. and my device got stuck on bootscreen. Now when i try to flash via odin i get the following error (attached image below). Please help
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1230059
I dunno if it works.
Its not for our phone but perhaps it works..
DONT BLAME ME FOR A DESTROYED PHONE!!
Edit: perhaps de wiki can help? http://forum.xda-developers.com/wiki/Samsung_Galaxy_S_Plus/GT-I9001
If you are updating over kies you can always take it back to Samsung to get it fixed
Sent from my GT-I9000 using Tapatalk 2
But that works only through recovery right. i dont have a recovery installed. could you suggest a method to flash a recovery ? (The device is available in download mode)
renuk11 said:
hi guys, my i9001 seems to be bricked. Something went wrong when i was updating my device via kies. and my device got stuck on bootscreen. Now when i try to flash via odin i get the following error (attached image below). Please help
Click to expand...
Click to collapse
Did you try the Kies Emergency Firmware Recovery option ?
I was thinking. Mbr in windows means Master Boot Record. If you get an mbr error i think its related to your bootloader.
Try to reflash your bootloader via odin or cwm.
Verstuurd van mijn GT-I9001 met Tapatalk

Boot verified failed after update PLEADE HELP

Hello,
I have a big huge problem so i havent slep all night but i cant resolve it.
I was fist on ICS official, so i want go back i have treid AfterOta
I have use Afterota and install HC bootloader, that gone okay, but whe i put a rom for my A501 its update wel after the update
it wont start anymore it gives Boot veriefied failed.
Then i try several Rom putteing on the sd kart but it not flashing anymore.
I am stuck now, please can anyone help me...:crying:
cebbes30 said:
Hello,
I have a big huge problem so i havent slep all night but i cant resolve it.
I was fist on ICS official, so i want go back i have treid AfterOta
I have use Afterota and install HC bootloader, that gone okay, but whe i put a rom for my A501 its update wel after the update
it wont start anymore it gives Boot veriefied failed.
Then i try several Rom putteing on the sd kart but it not flashing anymore.
I am stuck now, please can anyone help me...:crying:
Click to expand...
Click to collapse
To get back to stock you'll need to run an official a501 EUU - theres a thread in the dev forum by blackthund3r with a list of official Acer Roms -
you need an "EUU" AND I hope you have saved your cpuid from using afterOTA - you can't do anything now without it
dibb
I have download a full rom A501 first and install thats work great after booting up it wont start and give the error.
Yes i have olso save my Acer id tekst with spuid serial number like that.
But can you tell me which one i need to install a full or Euu
QUOTE=dibb_nz;36135657]To get back to stock you'll need to run an official a501 EUU - theres a thread in the dev forum by blackthund3r with a list of official Acer Roms -
you need an "EUU" AND I hope you have saved your cpuid from using afterOTA - you can't do anything now without it
dibb[/QUOTE]
theres only this one, which will take you all the way back to HC3.0.1
EUUs_SBK_Acer_A501_0.017.01_PA_ATT:
- if moscow desire is around he may be able to point you to a more recent version, but I havent seen him about lately he may be taking a well deserved holiday
The link for this is not working?
Any other options?
EUUs_SBK_Acer_A501_0.017.01_PA_ATT:
- if moscow desire is around he may be able to point you to a more recent version, but I havent seen him about lately he may be taking a well deserved holiday[/QUOTE]
Skrilax_CZ`s bootloader V8 Boot Menu HELP
Hello
I have come littel further, so i am now on the Skrilax_CZ`s bootloader V8 Bootmenu mode
option
Reboot
Fastboot Mode
Boot Primary Kernel Image
Boot Secondary Kernel Image
Boot Recovery
Set Boot Secondary kernel Image
Set Debug mode on
Wipe Cache.
So cany anyone tel me what i must do to root and install CWM recovery
so i can install then after custom roms?
I am nou again stuck
cebbes30 said:
Hello
I have come littel further, so i am now on the Skrilax_CZ`s bootloader V8 Bootmenu mode
option
Reboot
Fastboot Mode
Boot Primary Kernel Image
Boot Secondary Kernel Image
Boot Recovery
Set Boot Secondary kernel Image
Set Debug mode on
Wipe Cache.
So cany anyone tel me what i must do to root and install CWM recovery
so i can install then after custom roms?
I am nou again stuck
Click to expand...
Click to collapse
Well, that is good news, you're halfway there
This tutorial will give you some background on rooting and installing CWM http://forum.xda-developers.com/showthread.php?p=35500631#post35500631
But now you have the v8 and access to fastboot the first thing you should do is to hook your usb cable to your pc and run a command prompt from the fastboot folder (if you need help with doing that have a look in the cpuid guide linked in my sig). You want to wipe /data and /cache and then immediately flash an ICS custom rom...civato has a thread with official acer stock roms that will run on the v8 or you can choose a full custom one.
You should already have a custom recovery on your tab, if not, use fastboot to flash one after you did your wipes...then boot to it and flash your rom not an update.zip
i have hook the usb cable but i cant write somthing on the cmd
its noet working, i want to install CWM this was verry easy to use.
I dont now why its verry difficult to root and install a custom firmware on a Acer Iconia A500.
I have olso a Samsung galaxy tab, this was veryy easy to use after 3 minutes it was rooted and installed the CWM.
Boot verified failed and recovery verified failed
Hi Guys,
My Acer A500 is completely bricked, when i tried to enter the recovery mode (Volume - + Power) i am receiving recovery verified failed and when i try to reboot the tablet it says Boot verified failed, could you please help me in recovering the tablet.
cebbes30 said:
Hello,
I have a big huge problem so i havent slep all night but i cant resolve it.
I was fist on ICS official, so i want go back i have treid AfterOta
I have use Afterota and install HC bootloader, that gone okay, but whe i put a rom for my A501 its update wel after the update
it wont start anymore it gives Boot veriefied failed.
Then i try several Rom putteing on the sd kart but it not flashing anymore.
I am stuck now, please can anyone help me...:crying:
Click to expand...
Click to collapse
@ cebbes
Go to cpuid guide in my sig
You'll need the drivers installed correctly, there's a section showing how to do that....you'll need to flash the v8 bootloader to get cwm...its all in the guide
Sent from my GT-I9300 using Tapatalk 2
---------- Post added at 05:42 PM ---------- Previous post was at 05:35 PM ----------
jaga_n_jaga said:
Hi Guys,
My Acer A500 is completely bricked, when i tried to enter the recovery mode (Volume - + Power) i am receiving recovery verified failed and when i try to reboot the tablet it says Boot verified failed, could you please help me in recovering the tablet.
Click to expand...
Click to collapse
Hope you saved yr cpuid somewhere, you'll need it....
What Rom's did u flash??
u need to downggrade to hc using an euu. Download and instructions in the root guide in my sig
Sent from my GT-I9300 using Tapatalk 2
dibb_nz said:
Well, that is good news, you're halfway there
This tutorial will give you some background on rooting and installing CWM http://forum.xda-developers.com/showthread.php?p=35500631#post35500631
But now you have the v8 and access to fastboot the first thing you should do is to hook your usb cable to your pc and run a command prompt from the fastboot folder (if you need help with doing that have a look in the cpuid guide linked in my sig). You want to wipe /data and /cache and then immediately flash an ICS custom rom...civato has a thread with official acer stock roms that will run on the v8 or you can choose a full custom one.
You should already have a custom recovery on your tab, if not, use fastboot to flash one after you did your wipes...then boot to it and flash your rom not an update.zip
Click to expand...
Click to collapse
First to thanks to dibb_nz, civato, Moscow Desire & Heisenberg.
I have installed Skrilax CZ bootloader V8 on my TAB ( after six month trying )
Then Installed: CWM recovery v5.5 thor2002ro rev.1.7.3
showing: kernel 3.1.10-digetx-thor-4.4micro
Bootloader: 0.03.14-MUL
Active boot partition 1st boot partition set as default.
Not running HC bootloader, itsmagic not needed.
As per your instruction on (Skrilax CZ bootloader V8) wipes all the /data and /cache using fastboot method then reboot and after going to CWM recovery flashed Civato official acer Rom Acer_AV041_A500_1.041.00_WW_CUS1 from here http://forum.xda-developers.com/showthread.php?t=1633907.
But again my Tab is stuck on Skrilax CZ bootloader V8 bootmenu.
now help me what to do.

Acer Iconia A500 bootloader issue

Hello,
I read a lot of threads but I'm really tuck...
When I power on my Acer Iconia A500, I have this error message : "Secure boot: image LNX checksum fail!"
According to my research, the issue is the bootloader. So I want to update (change) this.
When I power on my tablet in recovery mod I don't have this error. My recovery it's TWRP v2.4.4.0 (Team Win Recovery Project).
I have not my CPUID, so I downloaded Afterota and install the official driver Acer.
But when I plug my tablet, second step "Usb Connection" I have this issue : ERROR - connect usb cable and enable usb debugging"
But I can't enable usb debugging because my ROM is fail...
I hope somebody can help me because I have no idea
Try flash thor cwm 1.7.3 via cwm, then get the cwm recovery in, flash flashable zip bootloader v8,hope this help
Sent from my HTC Desire VC
tibeoh said:
Hello,
I read a lot of treads but I'm really tuck...
When I power on my Acer Iconia A500, I have this error message : "Secure boot: image LNX checksum fail!"
Click to expand...
Click to collapse
Depends what rom you were running when all this started....
enter recovery mode advanced menu and choose fix checksums!
According to my research, the issue is the bootloader. So I want to update (change) this.
Click to expand...
Click to collapse
Again, this depends on the rom u had...
When I power on my tablet in recovery mod I don't have this error. My recovery it's TWRP v2.4.4.0 (Team Win Recovery Project).
Click to expand...
Click to collapse
If you do have recovery mode then a) go in and format data and cache,
b) flash custom ics/jb rom....
c) It will show you your cpuid....
I have not my CPUID, so I downloaded Afterota and install the official driver Acer.
But when I plug my tablet, second step "Usb Connection" I have this issue : ERROR - connect usb cable and enable usb debugging"
But I can't enable usb debugging because my ROM is fail...
Click to expand...
Click to collapse
You can only use afterota IF your rom was a stock ics updated via OTA...was yours????
Sent from my GT-I9300 using Tapatalk 4 Beta
Thank you for your answers.
But now I have any access to my recovery mode...
I have the same error: "Secure boot: image SOS checksum fail!"
My tablet is not detect on my PC.
I install pilots (source Acer website) but impossible to detect it.
Have you got an idea ? I follow this thread : http://forum.xda-developers.com/showthread.php?t=1129873
And when @sc2k say : "Send me a PM with your UID and a link to "mmcblk0_start" no answer... And I don't now that he wants to do with this.
I'm really lost... Thank
Oh right....did u get yr cpuid???
Go to the root guide in my sig and download timmydeans v4...run that snd see if you have better luck
Sent from my GT-I9300 using Tapatalk 4 Beta
I have the same problem. Did you find a solution?

Fastboot reboot due to exchange device encryption policy?

Can it be that the my exchange device encryption policy which has encrypted the Lee one pro prevents me to enter fastboot? When I activate the penguin mode it reboots 3 sec. later into normal mode...
Gesendet von meinem Le 1 Pro mit Tapatalk
I was able to flash recovery.img from TWRP by using my UBUNTU system. With Windows my LeTV went always out of the fastboot mode.
Further more I had todo this under Linux to talk in fastboot mode with the device:
http://askubuntu.com/questions/705537/no-permissions-fastboot-fastboot-and-adb-not-working
Can you discribe a bit more? I gor same issue (phone restart after enter fastboot). Can i use ubuntu live from usb?
Ok i find a way to fix it, you have to disable driver signature on startup (windows / settings / update and securyy / recovery / adv startup.

SM-G1705 Need Help. I am unable to boot even on recovery mode.

Hi guys, can you please help me, my samsung grand 2 sm-g7105 is unable to boot even on recovery mode. its giving me an error message "unable to boot normal while on downloading after installing a ROM. I'm stuck and dont know what to do, please help. thank you.
Download firmware from SamMobile flash it via odin
Sent from my SM-G7102 using Tapatalk

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