I haven't tried yet. Once I lost root and safestrap on the last build I kept tablet in airplane mode. Now that I'm rooted with ota blocked I didn't know if the previous build would work. I'll try it out and repost back.
Update. I ran the old version of safestrap. I got the grey kindle fire screen then a blank screen for a few seconds. It then boots the normals boot animation and starts up. It seems to skip past booting into recovery
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Device: ATT Galaxy S II
Current Rom: UnNamed v1.0.2