Stuck on triangle screen when creating nandroid

[SavageRobot]

Hi Guys,
I am currently running Lion Rom V1.3. Used it for a week or so but got bad lag on lock screen so I then flashed Philz Kernel as suggested in the XDA thread which worked a treat and has been running fine for about the last month.
However I get easily bored and wanted to try another ROM (trying to find one with a good battery life). Anyhow, I found one I was going to have a go at and before downloading to flash I thought I would create a nandroid backup. Here is where the problem is. It got stuck on the screen before the boot screen (where it says galaxy s2 I9100 etc and the triangle). I left it on that screen for about 15-20mins before I realised that it is probably not going anywhere. So I pulled the battery and tried turning on, stuck at same screen. Tried booting into recovery but it just goes straight to that same screen. Any suggestions please? Thanks in advance.

 

[SavageRobot]

phhe-ew,
I ended up flashing philz kernel again through odin (somehow managed to get download mode working but still not recovery). and it worked...eventually. I'm sure I'll hit a few more problems though, but for now at least I have a phone again. Hopefully this will help anyone else that runs into this issue.

 

[SCPadgeebar]

If it is battery life, performance and stability you are after, you might as well try Neat Rom.

 

[cozins17]

I had same problem recently getting stuck on Yellow Triangle screen.

What I'd recommend is before flashing next ROM do a complete wipe & fresh install. Clean/wipe evetything u can, I've had no problems at all since I did this.

I think every now and then you should do it.