[Q] Help! secure boot: image SOS checksum fail!

brain117 · Jun 14, 2011

i try to upgrade my A500 but failed, when i tried to update it again I got this message in the upper left corner:

secure boot: image SOS checksum fail!

but if i turn it on normally, i can still i can run the machine and use it without any problem.

i thought something might went wrong with the boot.img, so i tried to push the boot.img, but got another message when i turn on the A500 as:

secure boot : image LNX checksum fail!

now i am totally lost, once i turn it on, it will show the LNX thing, if i tried to flash it, it will show the sos thing.

unfortunetely i did not back up my recovery.img.

who can help me on this? thanks in advance!

dr1337 · Jun 14, 2011

Uh oh....that sounds like some major brickage.......sc2k is your only hope now.

sc2k · Jun 14, 2011

So I really hope u got your UID.

If so I can instruct you how to unbrick.

Please contact me via PM with your UID.

brain117 · Jun 14, 2011

thank you so much!

but i did not record my UID, is there anyway out? or my A500 really become a brick now?

sc2k · Jun 14, 2011

Try if this still works:

TRY FIRST WITHOUT CONNECTING THE DEVICE VIA USB

2.c Windows (alternative method)

Download this tool (download link is nearly at the end of the page): http://www.nirsoft.net/utils/usb_devices_view.html

- Open the tool - Sort after VendorID - Check all devices with VendorID = 0502 and ProductID = 3325 . There is also a "Serial Number" column.

brain117 · Jun 14, 2011

i downloaded this software and open it quite well. it shows my A500 in the device name, there are 3 A500 devices under different descriptions.

i found the serial number column and read it. is this UID for my A500?

sc2k · Jun 14, 2011

Please PM me the value of the field. Should be a numer with 15-16 digits.

M..N · Jun 14, 2011

Did you have any luck in fixing the device.?

Sent from my HTC HD2 using XDA Premium App

brain117 · Jun 14, 2011

i am learning from sc2k now, hopefully i can fix it.

M..N · Jun 14, 2011

Awesome let me know how it goes if you can

Sent from my HTC HD2 using XDA Premium App

WishRyder · Jun 14, 2011

I had the exact same thing happen with my first Iconia while trying to get around the locked bootloader (in the early pre-recovery method days).

Acer was kind enough to offer to replace it for free under warranty if I shipped it to them, but best buy replaced it for me on the spot.

hitvan · Jun 14, 2011

I had the same prob
just download an update.zip put in ur sdcard and flash it by pressin volum down when u restart.
Gl.

WishRyder · Jun 14, 2011

hitvan said:
I had the same prob
just download an update.zip put in ur sdcard and flash it by pressin volum down when u restart.
Gl.

"Image SOS" is a bricked recovery, so no update.zip can be flashed. You must be thinking of "Image LNX" which is just a soft brick and can be recovered with update.zip

One or the other at a given time is ok. Both is bad.

hitvan · Jun 14, 2011

ohh sry my bad...didnt read properly

Alejandrissimo · Jun 14, 2011

brain117 said:
i try to upgrade my A500 but failed, when i tried to update it again I got this message in the upper left corner:

secure boot: image SOS checksum fail!

but if i turn it on normally, i can still i can run the machine and use it without any problem.

i thought something might went wrong with the boot.img, so i tried to push the boot.img, but got another message when i turn on the A500 as:

secure boot : image LNX checksum fail!

now i am totally lost, once i turn it on, it will show the LNX thing, if i tried to flash it, it will show the sos thing.

unfortunetely i did not back up my recovery.img.

who can help me on this? thanks in advance!

I has this two days ago, its easy to fix, please PM

jimbobtexas · Jun 14, 2011

I'm in a similar boat, but I at least have my UID and all my backups. What's the procedure, pretty please?

Alejandrissimo · Jun 14, 2011

brain117 said:
i try to upgrade my A500 but failed, when i tried to update it again I got this message in the upper left corner:

secure boot: image SOS checksum fail!

but if i turn it on normally, i can still i can run the machine and use it without any problem.

i thought something might went wrong with the boot.img, so i tried to push the boot.img, but got another message when i turn on the A500 as:

secure boot : image LNX checksum fail!

now i am totally lost, once i turn it on, it will show the LNX thing, if i tried to flash it, it will show the sos thing.

unfortunetely i did not back up my recovery.img.

who can help me on this? thanks in advance!

In order to fix BOOT.img problems just flash an entire update.zip from here

http://xdaforums.com/showthread.php?t=1113878

full firmware update.zip contains it own boot.img

this is how I fix this same problem

WishRyder · Jun 15, 2011

Alejandrissimo said:
In order to fix BOOT.img problems just flash an entire update.zip from here

http://xdaforums.com/showthread.php?t=1113878

full firmware update.zip contains it own boot.img

this is how I fix this same problem

Again, one of the op's problems is an image SOS checksum fail, which is a bad recovery image. No update.zip can be flashed without recovery.

I'm curious to see if recovery from bad SOS AND bad LNX is possible, since I couldn't get into adb, recovery, or the OS when both went bad on me. Any updates from the op?

jimbobtexas · Jun 15, 2011

WishRyder said:
Again, one of the op's problems is an image SOS checksum fail, which is a bad recovery image. No update.zip can be flashed without recovery.

I'm curious to see if recovery from bad SOS AND bad LNX is possible, since I couldn't get into adb, recovery, or the OS when both went bad on me. Any updates from the op?

I'd like to know, too. I'm sitting here with a dead Iconia.

brunsbanjo · Jun 16, 2011

jimbobtexas said:
I'd like to know, too. I'm sitting here with a dead Iconia.

only hope i see is that you may find a working nvflash version.
but i remember that s2ck said if you have your usb id you are able to recovery such failures

[Q] Help! secure boot: image SOS checksum fail!

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