[SOLVED] EU GT-P1000 w/ CM9 RC0: "Signature verification failed"
Dear valued Android and Samsung experts,
it is my first post in this forum. I waited until the flashable ROM etc. was released, so today I tried humbertOS' CM9 (RC0) from 02.02.2012. It is only my second time doing this, after initially upgrading von Android 2.0 or so to 2.3.3.
My Device Info (after wiping, while stuck now)
European SAMSUNG GALAXY TAB (GT-P1000)
Current baseband version: P1000XXJPZ
Current kernel version: 22.214.171.124-se.infra@SEP-52#2
Build No : GINGERBREAD.XXJQ1
I get the following error:
- Rooted with Super One Click (Maybe. Can't remember anymore, but it is rooted.)
- Installed ROM Manager Pro.
- Backed up with TitaniumBackup (Premium I think) to my Dropbox (via Wifi). I hope that is correct this way.
What did I try to solve the issue?
Finding update package...
Opening update package...
Verifying update package...
E: Signature verification failed
I redownloaded the ROM.zip, but it didn't help. As there are no md5 hashes available (why?) for the online files, I couldn't compare if there is a problem on my download side. But I used Google Chrome, Internet Explorer 9 and jDownloader now, they can't all be faulty. Of course I re-wiped the cache every time after I had to start the phone or transfer the files!
I read 3+ threads that I found via search, but there was no solution. By the way I was unable to find this forum (Samsung Galaxy Tab) in the forum scroll-down list? Am I blind? I triple-checked! ... In one of the threads I read there I should go go back to the stock version (2.1 or so), is that true? How do I force my Tab to do so?
Now what I think could be the problem source
is that I'm wondering why the path /sdcard is showing all the other folders and stuff and why before I put the files on the flash partition of the Galaxy Tab it didn't initially show up! What I try to say is: It seems to me the bootloader accesses NOT the SD-card, but the Tab's flash (all while calling it /sdcard), how can that be!
My SD card is basically empty asides of the ROM, kernel and GApps, but (how) can it even happen that the bootloader choses the internal flash over the SD card?
The last time (2.1 to 2.33) I upgraded I used Odin. This time this is not an option? I only follow the procedure you outlined and ask no questions.
I mean in the other thread I read "you will need to flash via odin first because stock rom of gtp1000 have limited options in the recovery mode." (source
) - well why is this then not mentioned in this thread
or on humberos website? As said, I just followed the directions, thus avoided Odin this time!
And here I read a lot about "Clockwork Recovery
", do I really need it? *confused* I mean I already own and payed for ROM Manager and Titanium Backup, should be fine right? I mean it is almost absurd how much I read about it...I can assure you I bought the above tools because back then those were the ones in the talk!
I also heard about "disabling of signature verification
", but as it involves a lot of steps, is it really necessary?
I also read about "3e Recovery
" but what is that? I would be happy if everyone could stop throwing around with abbreviations that yield no helpful Google results and instead write out and describe what tool or method they use exactly. For the above example my open question is obviously if this recovery method also applies to me with a different brand (Samsung) and model (Galaxy Tab "classic") compared to where I found this method....
Finally do I need to / should I replace my bootloader
/ recovery menu with another one maybe? ... In conclusion I hope you see I did my research, but there are so many ways to get a solution, so right now I simply need a hint from more experienced pro's about in which direction I have to go!
Thank you for your help in advance!