[EVO 4G General] jackfrost909:
Random reboots

Hey all,

Can anyone advise (or point a link) on how to investigate the cause of random reboots?

After reading about hardware problems on the evo that cause this I flashed back to stock unrooted and could NOT reproduce the reboots. This does not seem to be the faulty-hardware random reboot but something else. As this is a fairly new hardware to me (recent sprint swapped) I've only tried stock and my previous Reloaded setup but it only happens on the Reloaded and not on stock. I suppose I *could* try out a 3rd rom for reference but I haven't done so yet and don't really care to unless it'll be useful to troubleshooting.

The reboots are random and can be anywhere from a few minutes apart to a few hours apart I think at times the phone has gone "overnight" but that's usually only 5 or 6 hours anyway. Once I pick it up though it'll crash within a minute or two of usage. Once or twice I think it got close to making 24 hours but I wouldn't vouch for that.

I've tried a bunch of stuff - mostly basic troubleshooting. I'd call myself an advanced beginner and I've about exhausted my limited skill set.

When I first got phone I ran it stock for a day or so. I noticed the reboots occurring when I restored from nand (which I tried a couple of times, including older nands) so I've also wiped and installed clean.

I'm using smelkus mod. I Superwipe at least once if not two or three times before a restore or a flash.

I wipe, then flash and use aroma. Have tried checking all, just a few apps or nothing (always checked DTA2SD as I have a partition for that (about 1gb iirc), so nothing but A2SD is what i mean) for installation in Aroma.

Have tried Mason .15rc SBC and .14 SBC from the installer. Have also tried flashing Mason .14 SBC after, from recovery, dl'd from rootzwiki.

Typically I'd use smartass 128/499, UV by around -50. Never got that far on this phone.

Reboots happen with smartass, intellidemand, ondemand, and happened at stock timings (245/998) and with no UV. Did try changing timings and UV by -25 and -50 (vipermod). No noticeable changes to me except that phone seems a touch laggy when UC'd to 128 or 245 / 499 or 614 mhz. These are timings I've run on other evos with no issues.

Have tried to fix permissions on APKs both right after the flash (not let aroma reboot) and after the first boot and setup.

Have tried to run a2sd check/verify/reinstall.

None have solved the random reboots.

What it *feels* like to me is a memory issue of some kind. Akin to running out of ram or something and then it ****s.

Whether it's running out of ram, has bad blocks/mem chips somewhere or something else entirely is what I'd like to figure out. If this were a Windows server or workstation I'd know where to start. On Android, not so much.

Not that I'm a total noob here but I'm no developer. Heck I don't even get to play one on tv..

So? Where do I start? I'm assuming I'd find my answers (or a clue) somewhere in the logcat but logcat doesn't survive the reboot. Any apps that'll capture/save it before it gets overwritten on boot up? Or are there other logs somewhere I can look to?

Running out of ideas. Please help.

Much thx,

J.