Months ago I flashed a Modaco custom ROM to my friend's San Francisco. There haven't been any problems of late, however today I attempted to flash a Froyo build so he can try out C2DM apps like Beejive and Facebook and I was unable to load up a recovery screen. When holding Vol DOWN and booting I just got a white rectangle with FTM inside it - indicating that there was no recovery image installed.
I tried flashing Clockwork Recovery with the ZTE Blade Recovery Manager 2.9 but it kept saying 'Unrecognised' after selecting the .img file, no matter which one I used or whether I changed the name or screamed 'hail Mary'. I attempted multiple reinstalls to no avail.
The device is rooted so I tried using Terminal from the Android Market and flashing the recovery image but although it didn't come up with any errors I was still unable to boot into the recovery image. All it does now is show a green android the same as it would if pressing VOL UP when booting.
I've even tried installing with fastboot for mac, but despite being able to input the necessary commands, fastboot doesn't flash the device and just sticks at 'waiting for device' when the recovery flash command is executed. I've tried connecting the device a number of times, rebooting etc. I have no other USB ports available and no access to a Windows pc at present.
Can anyone assist here? The phone still works fine with the Modaco ROM but it's a bit annoying if that's all he will ever be able to use now!
Thanks in advance.
Japanese_Jellyfish_RLS9_image.zip should be easy, and it installs recovery as well. Please read how to install it.
hi all
i'm beginner in android, i hardly downloaded rom for my iconia, however.
during installing a program on my Acer iconia tab A500 suddenly stopped working, and i couldnot boot it with (black screen written on it acer + with message on the upper left corner of the screen says : secure boot: image lnx checksum fail!)
i read a little about that
1- i tried power+volume down but not working.
2- tried reset but not working.
3- tried adb but not working, its not in debug mod.
4- tried euu but not working ido not have my UID.( is it written on the ouside package.
5- tried to have my uid through usbdeview but there is no memory for previous thethering
6- tried wipe it to factory without recovery but not working
istill have the same fail message
note:
i had done a full backup previously to this problem with clockworkmod contains boot recovery and...
however
could you please help.!!
thanks in advances
Can you boot into recovery by holding down the volume down button and depressing the power on button?? If you can, once in clockworkmod recovery you need to select the "fix a500 boot/recovery checksums" under the advanced menu. It should have done this first time you booted into recovery to install a rom or when you rooted and installed cwm. Good luck, and once you get it fixed install the latest cwm recovery that is located on tegraowners.com.
Make sure you try volume up and down to get into recovery since it isn't very intuitive on which button is up and which is down.
Sounds like you have CWM loaded which has a tool to fix checksums. You boot to recovery mode using power * volume+ and then in the Advance menus is a item to fix your problem.
TD
I had the same issue a while back. If you do not have CWM installed, you should revert back to a 3.0.1 original ROM. I am not sure if 3.0.1 is required, but the original ROM from acer has a Windows Flash utility, so the tab is flashed using a PC, not the recovery mode from the tab itself.
It was a while back (before this summer), but i can't exactly remember if my tab already had CWM or ROOT.
I know there is/was a thread about reverting to 3.0.1 somewhere on XDA, but i can't seem to find it anymore.
Boot to recovery. Hold vol- and pwr until text appears at the upper left corner of the display.
Can you do that? And get the menu?
Say exactly what you did, with filename. All procedures you did.
We are missing information.
acer a500 usb boot recovery driver in the window 7 device manager disappear when entering download mode using blackthund3r a500 apx flash utility have tried about 10 times with no luck
shenny585 said:
acer a500 usb boot recovery driver in the window 7 device manager disappear when entering download mode using blackthund3r a500 apx flash utility have tried about 10 times with no luck
Click to expand...
Click to collapse
Follow along with this step by step - "Pictorial" "How to Use the apxFlash Tool"
how far do you get and what doesnt 'work'?
Did you install the right drivers?
apx flash utility
I got as far as are you ready to flash I press yes when downloading starts the driver disappears. I tried the manual method and auto mathod. I used the guide an followed it
a500 flash utility
yes it is the right driver. download it from the acer a500 support site
You should see a cmd prompt come up and load a few lines up then flash off the screen. At that point your tab should vibrate and say sumthin like "Entering Acer Download mode" with the acer logo in the middle.
I don't remember if mine disappeared or not, I know I kept an eye out for it the first time I flashed the BL. I read this after I flashed to v4, I would have checked had I read it earlier...sorry
As long as the little usb icon appears at the bottom of the screen it should be OK. Make sure you don't have any other usb devices attached... Right click on the usb icon and it should say apx device...
I always use manual method to update bootloader and recovery as I can't seem to get blackthund3r's tool to work....
You do need to be in APX mode though... Supposed to be tricky manually but I just stick a LED leg into the reset hole, press power 3 secs then a sec later release the reset button. Works every time...
shenny585 said:
I got as far as are you ready to flash I press yes when downloading starts the driver disappears. I tried the manual method and auto mathod. I used the guide an followed it
Click to expand...
Click to collapse
ok we wont be too concerned with the driver disappearing just yet...
you get the are you ready to flash window and click yes
then the you have 8 seconds to cancel window pops up
and then the "flashing ....entering download mode bootloader pops up
so what do you see after clicking yes to the are you ready window
also what rom are you on now and which package are you trying to flash??
apx flash utility
I see entering dowload mode bootlander- flashing boot loader-flashing kernel-flashing recovery-exiting bootloader
package-V3 bootloader
rom- ICS AV041 a500_1.031.00_ww_Gen1
shenny585 said:
I see entering dowload mode bootlander- flashing boot loader-flashing kernel-flashing recovery-exiting bootloader
package-V3 bootloader
rom- ICS AV041 a500_1.031.00_ww_Gen1
Click to expand...
Click to collapse
yep - nothing wrong there
ok lets take another step back
- apart from the driver disappearing do you have any other problems????
cos to me it doesnt seem that you do????
- so what happens on your tab that u dont or do see in the guide??
apx flash utility
Reading the guide again I notice the tab does not vibrate but the screen say
"Entering Download Mode"
shenny585 said:
Reading the guide again I notice the tab does not vibrate but the screen say
"Entering Download Mode"
Click to expand...
Click to collapse
Lol, m8 U ain't making this easy for me r u??.
Put it this way then,
Do u have a problem, cos I'm not hearing one . Does the tool fail to flash woteva it is u r trying to flash, does it get stuck and go no further, does yr tab not boot or something ...is the guide wrong,...I dunno???
So there aren't a lot of steps left to go - download mode u got OK, flashing u got OK, assume got "Done" window
So, either u still on v3 and u wanted v4 OR..............
The tool does not flash anything, another thing I notice in the guide the power light stays on, by the way I noticed at bottom of the tool it says apx decvice is connected.
shenny585 said:
The tool does not flash anything, another thing I notice in the guide the power light stays on, by the way I noticed at bottom of the tool it says apx decvice is connected.
Click to expand...
Click to collapse
OK now we're cooking...... everything you've said you've done and seen is all OK ant there should be no reason why the flash hasn't worked....
U posted this earlier "package-V3 bootloader rom- ICS AV041 a500_1.031.00_ww_Gen1"
Is this what u wish to flash to?
You've chosen not to flash custom recovery, is that correct..?
There is an updated version But its not mandatory you have it. you will be alright on v3
-A500-V4-CWM1.7.a500apx or
-A500-V4-CWM1.7.2.a500apx with latest CWM-1.7.2
Download Acer recovery installer if u dont already have it.
open it up and tell me what BL & Recovery version it says u have
Silly question maybe, but are rooted??
apx flash utility
Yes I have not chosen to flash custom recovery
Yes I am rooted
Acer Recovery Installer:
BL-0.03.12-ICS
Recovery Version-CWM rev1.7 by thor2002ro(for ICS Bootlloader)
The problem here is when a boot into recevery. I get (recovery verified failed ) after I updated to new ICS OTA that when the error started.
Used the Acer Recovery Installer and Power Bottom-Vol-Down same results.
shenny585 said:
Yes I have not chosen to flash custom recovery
Yes I am rooted
Acer Recovery Installer:
BL-0.03.12-ICS
Recovery Version-CWM rev1.7 by thor2002ro(for ICS Bootlloader)
The problem here is when a boot into recevery. I get (recovery verified failed ) after I updated to new ICS OTA that when the error started.
Used the Acer Recovery Installer and Power Bottom-Vol-Down same results.
Click to expand...
Click to collapse
M8, that took along time to get to the real problem and is what u should have posted right from the beginning!!!!!
The OTA has wiped yr cwm recovery and root - Yes that's just what they do
You've re-rooted - OK fine
Problem - recovery verified failed after OTA update
U have tried to fix using apxFlash - but chose not to flash a custom recovery (CWM)
Your recovery is borked so u have to put a new one on there, the best way to
go about doing this is to:
Download the V3 AND CWM Recovery package and apxFlash that.....Done!!
your need to flash the WHOLE PACKAGE b/c ARI reports yr BL as plain old stock
You cannot replace the failed recovery with CWM with the plain old stock BL!!
You have to flash the patched BL as well, so again
You must flash the whole pckg just like in the guide OK
if later u want the stock recovery back u can use ARI to do that but after the apxflash!!!
apx flash
Thanks for all your help but I can't seen to find the { V3 bootloader AND CWM Recovery package } that you mention. Can you lead me the right place for the files.
Thanks
Can I jump in here please as its sort of my problem as well.
Every thing goes fine ish.
When the tool tries to boot the tab into bootloader it fails.
Nothing on the tab screen. USB icon or computer disappears.
I just want to install a ics unlocked (is that the same as pateched) boot loader so I can install civs extreme???
Thanks
Why don't you guys read this thread.
http://forum.xda-developers.com/showthread.php?t=1688795
And install your Google USB drivers and verify they work with your tab in APX mode.
Later in the thread I posted an older app which installs Ver4 unlocked and CWM. Read the notes on my post's and give it a shot.
It's the app I always use.
MD
Okay. Rooted the A500 this afternoon... got ready to flash the first step from blackthund3r's APX Flash Utility... I have the drivers, up to date, and clicked "No" to go back and get them (accidentally) and now it is sitting still saying "Acer Iconia APX Mode" in the upper left screen in white text with a nice green ACER logo in the middle, but it isn't doing anything and the APX tool says "Waiting for 4 seconds for the tablet to enter the bootloader", but the tablet is not entering such a bootloader... What now?
Right, so I just rooted my iconia using this method:
http://theunlockr.com/2012/09/17/how-to-root-the-acer-iconia-a500-tablet/
And then I used this method to install CWM Recovery on it:
http://theunlockr.com/2012/09/17/how-to-install-clockworkmod-recovery-on-the-acer-iconia-a500/
However, after I install the recovery image and hit Reboot into recovery, once it loads up to the initial Acer loading screen, the following text appears in the top left-hand corner:
Booting recovery kernel image
Recovery verified failed ...
Then it just stays on that screen until I hold the power button to turn it off.
Can anyone explain what I'm doing wrong? I'm just trying to install randomblame's version of JellyBean
http://forum.xda-developers.com/showthread.php?t=1737205
I'm currently running 4.0.3.
If any more info is needed, please ask. I could really use the help.
same problem exactly
CaptainBlackbeard said:
Right, so I just rooted my iconia using this method:
http://theunlockr.com/2012/09/17/how-to-root-the-acer-iconia-a500-tablet/
And then I used this method to install CWM Recovery on it:
http://theunlockr.com/2012/09/17/how-to-install-clockworkmod-recovery-on-the-acer-iconia-a500/
However, after I install the recovery image and hit Reboot into recovery, once it loads up to the initial Acer loading screen, the following text appears in the top left-hand corner:
Booting recovery kernel image
Recovery verified failed ...
Then it just stays on that screen until I hold the power button to turn it off.
Can anyone explain what I'm doing wrong? I'm just trying to install randomblame's version of JellyBean
http://forum.xda-developers.com/showthread.php?t=1737205
I'm currently running 4.0.3.
If any more info is needed, please ask. I could really use the help.
Click to expand...
Click to collapse
same problem exactly .. can't log into recovery .. can't instal any other rom .. i am stuck with the original rom .. while i already upgraded to 4.3 .. but my WiFi is working 20 cm from the router .. help plsssssssss
CaptainBlackbeard said:
Right, so I just rooted my iconia using this method:
http://theunlockr.com/2012/09/17/how-to-root-the-acer-iconia-a500-tablet/
And then I used this method to install CWM Recovery on it:
http://theunlockr.com/2012/09/17/how-to-install-clockworkmod-recovery-on-the-acer-iconia-a500/
However, after I install the recovery image and hit Reboot into recovery, once it loads up to the initial Acer loading screen, the following text appears in the top left-hand corner:
Booting recovery kernel image
Recovery verified failed ...
Then it just stays on that screen until I hold the power button to turn it off.
Can anyone explain what I'm doing wrong? I'm just trying to install randomblame's version of JellyBean
http://forum.xda-developers.com/showthread.php?t=1737205
I'm currently running 4.0.3.
If any more info is needed, please ask. I could really use the help.
Click to expand...
Click to collapse
ahmed morsy said:
same problem exactly .. can't log into recovery .. can't instal any other rom .. i am stuck with the original rom .. while i already upgraded to 4.3 .. but my WiFi is working 20 cm from the router .. help plsssssssss
Click to expand...
Click to collapse
You cannot root and flash recovery on ICS YOU MUST have the unlocked bootloader Everything you need is here
I got my 16GB grouper in November. During unlocking and rooting, I have tried TWRP from my PC(Win7HB, WinXP) but it hangs at Google logo. Tools used were android sdk and downloaded drivers from it. I was recently using Modaco Jr12, M-kernel a23 and CWM touch when I went to meet my friend and tried TWRP from his laptop(Win7Ultimate). Voila! It got into recovery mode straight. Tools now used were platform-tools-v16.zip downloaded from this forum, and drivers downloaded from Asus. But alas! during playing with my device I installed stock ROM, and custom recovery was gone. At home I tried the same tools on my PC that I had used on my friend's laptop to install TWRP but to no avail. I noticed one thing that during TWRP install from my friend's laptop a folder named TWRP was installed in my /sdcard. This doesn't happen at home and manually restoring the folder from my copied files/folders on my PC to my Nexus 7 has no effect. I cannot get into recovery either from bootloader or from ROM. What's actually happening? Another information to mention is that adb commands only work in recovery mode but not when booted into ROM.
Any help?
Anyone there who has faced similar problem with TWRP?
Power and Vol down?
<><><><><><><><><><><><><><><><><
Swyped from my N7
Current: PA 2.99 b8 & M-Kernel+ a24
bootloader
ezas said:
Power and Vol down?
<><><><><><><><><><><><><><><><><
Swyped from my N7
Current: PA 2.99 b8 & M-Kernel+ a24
Click to expand...
Click to collapse
leads me to bootloader. selecting "recovery mode" causes a hung up screen with Google logo & open lock icon(as if no recovery is installed, except that "booting failed" message at top left corner isn't displayed). Power+vol- leads me to bootloader again. This only happens with TWRP, not with CWM.
SOLVED
dmmbbs said:
leads me to bootloader. selecting "recovery mode" causes a hung up screen with Google logo & open lock icon(as if no recovery is installed, except that "booting failed" message at top right corner isn't displayed). Power+vol- leads me to bootloader again. This only happens with TWRP, not with CWM.
Click to expand...
Click to collapse
Friends, sorry for bothering you as well as myself being bothered. It seems my Internet Download Manager somehow did not like the official TWRP link and downloaded a file with different md5 each time, just not the correct one. I downloaded the TWRP file from Chrome itself and, Voila!! problem solved and a lesson learnt---- ALWAYS DO A CHECKSUM CHECK