Database Users

**SOLVED**Help! secure boot: image SOS checksum fail! the sequel..

Hi guys i know Brian117 originally posted this and sc2k helped him fix hes tablet i apologize for not continuing the thread
but its been almost 8 hours since i bricked my tablet. i can't take it anymore i tried alot of things i search Google for answers until i gave up.
Im not a pro but im not new to flashing roms so i originally installed CWM from the "it's Magic" post from sc2k i did it successfully then installed
Dexter's primee rom successfully aswell no problem. Once i discover Virtous picasso rom, Honey Villain rom i decided to test them out aswell
see witch one fit my liking so i did successfully. After seeing Virtous galaxy i decided to check it out i did i got an error at boot so after posting
my error some suggested i update my CWM so i was able to boot into galaxy rom loved it then i downloaded "update-recovery-thor2002ro-rev1.3.4"
from the instruction i gathered im suppose to just flash it through CWM so i did and it said that i succesfully flashed it now reboot into CWM to see
the changes so at this point i thought heck yeah!! then to my surprise i reboot it the tablet and was greeted to " secure boot: image SOS checksum fail!" so i then tried a normal reboot the ACER logo just stood there hanging looking back at me laughing.
Before i originally installed CWM i followed all instruction so i have all my back ups and UID saved on my PC. i Already pm sc2k about see if he can help me
but i thought i post the whole processed of what i did to avoid others bricking their tablet aswell and hopefully in the mean time if any of you guys have any suggestions, tips i gladly welcome them since i cant return it to staples anymore i have to deal with Acer if i cant get it to work. Also I fully understand this is a risk i took and not blaming no one for my error all im asking is for help

u done one wrong step, u didnt run its magic before installing thor recovery i think..

I am pretty sure that thor explains in his thread that you should flash his "update-recovery-thor2002ro-rev1.*.*" files only if you allready have his version of recovery installed.
So you should have installed the full "recovery-thor2002ro-rev1.3.4.rar" as described in 1st post of his thread and not just try to flash the update-recovery file.
Maybe thor or sc2k can help you now..

I think the problem was that your original cwm was an older version that did not run itsmagic automatically on startup and the update package doesn't run it either. I'm so glad to see someone who has backups!
Don't know if this will help.. The hang at the logo is usually an indication of needing to do a data wipe after installing a custom rom. Was the tablet booting normally before flashing the cwm update?
Anyway, this thread from sc2k demonstrates a method to wipe data. You can see if that will help get you past the logo screen. If it does, great.. run itsmagic, then you should be able to get back into recovery.
If it doesn't help, you'll need to ask sc2k how to unbrick via nvflash (that's what mcblk0_start file is for).
Edit: aw man..I just realized I forgot the link.... ah well

Update: with help from sc2k i was able to fix my tablet it worked great.
and im currently installing a custom rom through Thor2002ro CWM.
Thousand thank you's to sc2k and everyone in the Development comunity
for the advice i knew if you guys couldnt help me no one could.
thank god for the XDA forums.

babyboy8100 said:
Update: with help from sc2k i was able to fix my tablet it worked great.
and im currently installing a custom rom through Thor2002ro CWM.
Thousand thank you's to sc2k and everyone in the Development comunity
for the advice i knew if you guys couldnt help me no one could.
thank god for the XDA forums.
Click to expand...
Click to collapse
How do I PM SC2K. I have the same issue with my a500. LNX Checksum error. I Need Help!!! Please Help.

Bricked Tablet

Hey,
I recently became the owner of a bricked Iconia a500 tablet. Beyond that, I don't know much about it and I cannot contact the previous owner...
The situation:
It will boot the the Acer logo, but it doesn't go beyond that.
I've searched this forum (and others) for ways to bring it back to life. A factory reset doesn't seem to do anything at all.
I can boot into recovery mode to load a rom, but cannot find the proper rom. CWM does not seem to be installed. I've looked for stock roms but none seem to work.
When I try and load a rom I will inevitably get a white triangle with an orange exclamation mark inside of it. Next to this is the android man.
I've found a few threads that purpose links to a stock rom, but a lot of them have file shares linked to Megaupload... which is.. well non-existent now.
Again, I can not tell you the anything about the current software.... if you know how I can find out that alone would be a huge help! = )
Many thanks,
Robert

This might be your best luck..
This flashed thru your computer adb.. apx mode..
http://forum.xda-developers.com/showthread.php?p=20680452#post20680452

Hey Erica,
Thanks for you very speedy response!
Well, I read a lot of that thread... lol probably more than I should admit. I followed the procedure but was unable to get a good connection via USB.
I was finally able to get it to register a Factory Reset thanks to that post. Had tried it a few times before... must have not been pressing hard enough?
Either way, it is stuck on Erasing Userdata... and Erasing Cache...
I saw that it was suggested it could be a hardware issue... What is your opinion?
Thanks,
Robert

I still think its a rom issue..
You might could try to download the rom again. and try again.. there is also another thread in the DEV section that does the same thing but differently you could try that or maybe posting there where a TRUE Developer might be able to help you..
I just repeat what i have learned from my own mistakes and read from others..
Sorry im not more help ..

Trust me Erica, you have been a great help! If I find a solution, I will update this thread with it = )
Thanks!
Robert

"Bricked" P1000

Hey Guys!
Sorry about writing about a topic that seems to have been covered many times before. The solutions I found did however not solve my problem, I am still stuck.
I have ClockworkMod Recovery v3.0.0.5 installed, it boots fine but with tons of file system related errors.
E:\Unable to process volume! Skipping...
E:\unknown volume for path... this is repeated probably about 10 times one for each folder it tries to access
I tried going back to Odin and install different PIT files that I could find; gt-p1000_mr.pit and p1_add_hidden.pit
I then tried doing the dbdata.rfs.tar and just dbdata.tar
Still same problem with the filesystem
All of this started with my device just stopping at the Sammy logo after re-boot. The re-boot was a normal one, not related to any patching, modding or anything else. A normal daily reboot. I have an about one year old Overcome ROM in my phone that I haven't fiddled at all with since I installed it. It has been working just fine.
I didn't have the partion or filesystem problem at this point...
I booted into Clockwork and ran evert format/file wipe menu option I could find, with the intent to just install a newer ROM later to resolve the problem and get a new fresh completely clean tab.
The problem started after this... I thought that I would just be able to get a new Overcome, BOCA or some other nice ROM from the SD card. Problem was of course that my SD card couldn't be mounted after I had wiped everthing...
So I tried all the above stuff with the dbdata and pit files but it didn't recover...
Any ideas?
Thank you!

well, get the restock files from overcome site and flash a fresh gingerbread safe 5, all the needed files are in the zip.
good luck
ps: Read the manual, in case you forgot about something.
If I helped you, please press the thanks button

You did help me, thank you! I needed the stock ROM I did however manage to make things even worse and ended up with the "Phone-Exclamation mark-Computer"-logo. That got me worried. Some googling did however help me solve the problem.
I made a write up to help other come from this state to a completely working phone with custom ROM installed. Hope it will help others. http://blog.vel.nu/?p=97
Again, thanks for pointing me in the right direction!

you're welcome
by the way, the process of debriking the tab is very well explained on your blog!
Thank you! (in case i brick mine, i will refer to your blog)
If I helped you, please press the thanks button

posterberg said:
You did help me, thank you! I needed the stock ROM I did however manage to make things even worse and ended up with the "Phone-Exclamation mark-Computer"-logo. That got me worried. Some googling did however help me solve the problem.
I made a write up to help other come from this state to a completely working phone with custom ROM installed. Hope it will help others.
Again, thanks for pointing me in the right direction!
Click to expand...
Click to collapse
I am with the same exact problem. That link you provided is not working.
I really need help if you or someone else can. Thank you

All what you need is here
http://forum.xda-developers.com/showthread.php?t=1881981
Best regards
Sifou
Using a Samsung N7100

***WARNING potential brick with OTA 3.5***

If you are on OTA 3 and plan to go to OTA 3.5, make sure your recovery works first!
I attempted to install the old CWM (that didn't work with OTA3) back when I got OTA3 and had forgotten. Since it doesn't work I am stuck with my tablet bootlooping with the "Booting recovery kernel image" message. It just keeps trying to boot into recovery, thanks a lot Lenovo.
Hopefully I can fix this because I think my tablet just went out of warranty, so I can't even try to spin that. (If you know a way to force normal booting, please let me know.)
Also I should note that I have a US tablet. Which is apparently the only region with a locked bootloader. If I could get into nvflash fixing this would be a piece of cake. Now I have to stress out until I can get it fixed because I use it for taking notes in most of my classes.

Exactly same problem here. Will try to flash an update to see if it correct the problem
Hope that CWM recovery 5 works, otherwise will try to install CWMRecovery v6 (again, hope that adb works !)

Yeah, its not getting past the initial bootloader at all, so no Android, which means no ADB. Unless someone knows of a lesser-known button combo for booting into normal mode, I can't think of a way to fix this.

argh, just try to flash OTA 3 (wich should overwrite recovery) but same result ! always reboot on CWM 5.5.0.4
And adb don't seems to be recognize, so not possible to install another CWM recovery
I'm stuck !

Yeah ! solved my problem thanks to koshu (see here)
But I can do this because I had a recovery, so I don't think it will solve your problem David, try to ask Koshu, maybe he can find another way...

I shall ask him! Thanks!

quyTam said:
Yeah ! solved my problem thanks to koshu (see here)
But I can do this because I had a recovery, so I don't think it will solve your problem David, try to ask Koshu, maybe he can find another way...
Click to expand...
Click to collapse
my screen stuch at "lenovo" and "Booting recovery kernel image""
i am having same issue, but how to flash cwb6-0.4 ???

Stuck in APX after Jelly-Bean_4.1.2_CM10-FLEX_v6supercharged_Aroma

big ol' noob here. i just flashed the Jelly-Bean_4.1.2_CM10-FLEX_v6supercharged_Aroma rom on my a500 which previously had lightspeed 4.8 on it. now when it boots it shows the android guy with gears for a second then just a blank black screen. the backlight is on so you can tell the tablet is still on. i can still get into recovery with no issues though("aman ra-iconia-3.17-ics" via "scrilax_CZ bootloader v8") i dont know what it could be though. installation of rom gave no errors. so please, I ask for assistance in resolving the issue. i was looking into (and learning about) fastboot fixes but i'm not sure if it applies to me nor have i tried it before. any help in fixing the darn thing would be much appreciated.

raotheconqueror said:
big ol' noob here. i just flashed the Jelly-Bean_4.1.2_CM10-FLEX_v6supercharged_Aroma rom on my a500 which previously had lightspeed 4.8 on it. now when it boots it shows the android guy with gears for a second then just a blank black screen. the backlight is on so you can tell the tablet is still on. i can still get into recovery with no issues though("aman ra-iconia-3.17-ics" via "scrilax_CZ bootloader v8") i dont know what it could be though. installation of rom gave no errors. so please, I ask for assistance in resolving the issue. i was looking into (and learning about) fastboot fixes but i'm not sure if it applies to me nor have i tried it before. any help in fixing the darn thing would be much appreciated.
Click to expand...
Click to collapse
You should change the title to "Stuck in APX Mode". Refine your search. I've never had the issue, however, I believe 1 or more partitions are messed up. Which means you will probably have to revert back using TimmyDeans V4 rollback tool at the worst.
Just a guess. But search the forum for those terms. You should be able to find some threads as I've seen several references to being stuck in APX mode.
One place you may want to post your issue, is Skrilax_CZ's bootloader thread. He may know some fastboot commands to wipe the data.
MD

cool. I'll do that. thanks man. I'm still learning the lingo so that sheds a bit of light for me and gives me some direction to start. thanks again.

raotheconqueror said:
cool. I'll do that. thanks man. I'm still learning the lingo so that sheds a bit of light for me and gives me some direction to start. thanks again.
Click to expand...
Click to collapse
Also remember, before you install a different rom, you must; in CWM
1. Wipe User Data/Factory Reset
2. Wipe Cache
3. Wipe Dalvik
Then go to Mounts and Storage and;
1. Format System
2. Format Flexrom
Then you can install the rom. If you haven't done this, you should try again.
MD

raotheconqueror said:
big ol' noob here. i just flashed the Jelly-Bean_4.1.2_CM10-FLEX_v6supercharged_Aroma rom on my a500 which previously had lightspeed 4.8 on it. now when it boots it shows the android guy with gears for a second then just a blank black screen. the backlight is on so you can tell the tablet is still on. i can still get into recovery with no issues though("aman ra-iconia-3.17-ics" via "scrilax_CZ bootloader v8") i dont know what it could be though. installation of rom gave no errors. so please, I ask for assistance in resolving the issue. i was looking into (and learning about) fastboot fixes but i'm not sure if it applies to me nor have i tried it before. any help in fixing the darn thing would be much appreciated.
Click to expand...
Click to collapse
Try the wipe commands suggested in post #4 and then reflash your JB ROM. A lot of time it helps with reflash the ROM after wipes.

thanks for the tips. i believe i've actually performed them like you guys told me but it seems i've made it worse. my ridiculousness is currently going on in this thread here

I'm having the same issue with this ROM. I'm using the same recovery you are.

if you have any progress let me know cause i'm still stuck in apx land...

final update
Back to stock HC 3.2.1 right now. my issue ended up being unable to format the /data directory causing all my newly flashed roms to not load properly. per JdgM3NT4L's guidance i used the tutorial and tools here which took me back to a working status. now my only problem lies with what delicious rom should i have next? an ICS or a jellybean? if any XDA tutorials or assistance help bring you tablet back, make sure to click those ":good: thanks" buttons guys.