Help with bootloop - HTC EVO 3D

I was listening to music on my Evo 3D over bluetooth today, when I put it in my pocket and paused the music. After going back to my phone, I noticed it had reboot itself, and now it's stuck on a boot loop. Does this sound familiar to anyone? I can't think of any reason why it would boot loop like this. Wiping cache+dalvik doesn't fix the boot loop. After clearing cache+dalvik and booting the phone, it does go to the screen saying that Android is updating apps, but as soon as it finishes it goes right back to the boot loop. I'd appreciate any assistance in figuring this out. Thanks!

---

it happened to me the other day. i was using CM10.1 Wild for the night along with Saring Gas Kernel. i managed to fix this by wiping everything manually instead of using a superwipe, and then flashing again. and then i had this issue with MidNight Rom CM10.1 where whenever i turned bluetooth on, after turning it off the phone would freeze, reboot and then bootloop. however the Dev had specified that bluetooth was broken.
if the boot loop is at the Rom's boot animation, and you cant fix this by deleting Cache, Dalvik and Data, then you will certainly have to wipe it all and flash again. hopefully you had all you data backed up.

---

Kite-G said:
it happened to me the other day. i was using CM10.1 Wild for the night along with Saring Gas Kernel. i managed to fix this by wiping everything manually instead of using a superwipe, and then flashing again. and then i had this issue with MidNight Rom CM10.1 where whenever i turned bluetooth on, after turning it off the phone would freeze, reboot and then bootloop. however the Dev had specified that bluetooth was broken.
if the boot loop is at the Rom's boot animation, and you cant fix this by deleting Cache, Dalvik and Data, then you will certainly have to wipe it all and flash again. hopefully you had all you data backed up.
Click to expand...
Click to collapse
Yeah, I ultimately had to restore from a backup. This is an almost stock ICS rom, deodex plus a few other apps baked into the ROM, and the stock kernel.
Now this doesn't happen every single time I turn the screen off with bluetooth turned on, or every time I turn off bluetooth. This is just a random boot loop that hits out of nowhere. Since I can't figure out what causes it, I was hoping someone who had encountered it would know.

---

while i cant point out the exact cause, these random bootloops happen due to file system errors, or namely the kernel. but you say you had stock kernel, so if it was not overclocked or tempered with then that cant be it.
in my case, for example, last night i overclocked my phone to 1.8GHz and set the governor to performance, I/O to vr. turned the phone off and forgot to lower the settings or to increase voltage, and then when i turned it on the phone was in a bootloop. went to recovery and it said that cache was unreadable, suggesting a full wipe. what happened here was that the kernel settings i had used were saved in cache, so when i tried to boot with such high settings without the proper power for the cpu, the phone just couldnt boot. i wiped cache and the kernel settings got restored to default. so it booted.
another example was that i flashed an update.zip that was corrupted. the phone booted and behaved normally. then when i loaded any of the apps from the update.zip the phone would freeze, reboot and boot loop.
and then theres this one, my EVO could run every ICS rom perfectly, but every single 4.1+ rom i used had bugs, lag, visual glitches, and whatnot. i tried wiping multiple times, redownloading the roms, etc. in the end nothing helped. then i tried a superwipe which checks the filesystem for errors and optimizes it. after using that superwipe, every 4.1+ rom ran smoothly, and the ICS roms i had used benchmarked better than before
so if you say you got that boot loop randomly, and using stock kernel, i can safely assume that either the rom did not flashed properly, or that your EVO has some file system errors. you could try either a new fresh install or using a superwipe and flash your Nand, but if it was me, i would use superwipe, then manually wipe everything, and fresh install the rom. if the nand backup you installed after the bootloop was from the same install as the one who gave you the bootloop, then its a safe bet that it could happen again. i would backup all my apps and data, and do as i said earlier.
hopefully this info helped you a little.
in case you would want to give it a shot, here is the superwipe i used.
like i said, just flash the file on recovery, you dont need to wipe beforehand. and after its flashed, i recommend you wipe but its not necessary. then just flash your rom, and other files if any, and boot. hope it helps.
(i was gonna link to the thread where i got the super wipe, but i forgot where i found it. anyways, credit goes to author)

---

Kite-G said:
while i cant point out the exact cause, these random bootloops happen due to file system errors, or namely the kernel. but you say you had stock kernel, so if it was not overclocked or tempered with then that cant be it.
in my case, for example, last night i overclocked my phone to 1.8GHz and set the governor to performance, I/O to vr. turned the phone off and forgot to lower the settings or to increase voltage, and then when i turned it on the phone was in a bootloop. went to recovery and it said that cache was unreadable, suggesting a full wipe. what happened here was that the kernel settings i had used were saved in cache, so when i tried to boot with such high settings without the proper power for the cpu, the phone just couldnt boot. i wiped cache and the kernel settings got restored to default. so it booted.
another example was that i flashed an update.zip that was corrupted. the phone booted and behaved normally. then when i loaded any of the apps from the update.zip the phone would freeze, reboot and boot loop.
and then theres this one, my EVO could run every ICS rom perfectly, but every single 4.1+ rom i used had bugs, lag, visual glitches, and whatnot. i tried wiping multiple times, redownloading the roms, etc. in the end nothing helped. then i tried a superwipe which checks the filesystem for errors and optimizes it. after using that superwipe, every 4.1+ rom ran smoothly, and the ICS roms i had used benchmarked better than before
so if you say you got that boot loop randomly, and using stock kernel, i can safely assume that either the rom did not flashed properly, or that your EVO has some file system errors. you could try either a new fresh install or using a superwipe and flash your Nand, but if it was me, i would use superwipe, then manually wipe everything, and fresh install the rom. if the nand backup you installed after the bootloop was from the same install as the one who gave you the bootloop, then its a safe bet that it could happen again. i would backup all my apps and data, and do as i said earlier.
hopefully this info helped you a little.
in case you would want to give it a shot, here is the superwipe i used.
like i said, just flash the file on recovery, you dont need to wipe beforehand. and after its flashed, i recommend you wipe but its not necessary. then just flash your rom, and other files if any, and boot. hope it helps.
(i was gonna link to the thread where i got the super wipe, but i forgot where i found it. anyways, credit goes to author)
Click to expand...
Click to collapse
Just FYI, the Wild For The Night OP specifically says do NOT use superwipes. Superwipe scripts and AOSP Roms don't always play together nicely. That's and CM Rom. Factory reset wipe in recovery is fine.

---

I am aware of that. But thanks for pointing it out. Althought I haven't had any problems with AOSP roms & superwipes when I wipe manually after the superwipe, only when I don't. But then again results may vary. At least in my case, I'm pretty satisfied with the results.
Sent from my HTC EVO V 4G using xda app-developers app